1 | Some more outstanding target-arm patches; nothing terribly | 1 | Arm changes for before softfreeze: mostly my PL061/GPIO patches, |
---|---|---|---|
2 | exciting. Mostly they're mine; I'm trying to reduce the | 2 | but also a new M-profile board and various other things. |
3 | number of patches I still have in flight, so I've picked | ||
4 | out some of the reviewed patches from a couple of sets I've | ||
5 | sent out and will resend v2 versions of those sets with the | ||
6 | remaining patches with fixes for issues noted in review once | ||
7 | this is in master. | ||
8 | 3 | ||
9 | thanks | 4 | thanks |
10 | -- PMM | 5 | -- PMM |
11 | 6 | ||
7 | The following changes since commit 05de778b5b8ab0b402996769117b88c7ea5c7c61: | ||
12 | 8 | ||
13 | The following changes since commit adaec191bfb31e12d40af8ab1b869f5b40d61ee9: | 9 | Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging (2021-07-09 14:30:01 +0100) |
14 | |||
15 | Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging (2018-08-20 09:48:03 +0100) | ||
16 | 10 | ||
17 | are available in the Git repository at: | 11 | are available in the Git repository at: |
18 | 12 | ||
19 | https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20180820 | 13 | https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20210709 |
20 | 14 | ||
21 | for you to fetch changes up to b85fad1588e812566f897f747e38da345a7016d6: | 15 | for you to fetch changes up to 05449abb1d4c5f0c69ceb3d8d03cbc75de39b646: |
22 | 16 | ||
23 | hw/dma/pl080: Remove hw_error() if DMA is enabled (2018-08-20 11:24:33 +0100) | 17 | hw/intc: Improve formatting of MEMTX_ERROR guest error message (2021-07-09 16:09:12 +0100) |
24 | 18 | ||
25 | ---------------------------------------------------------------- | 19 | ---------------------------------------------------------------- |
26 | target-arm queue: | 20 | target-arm queue: |
27 | * Fix crash on conditional instruction in an IT block | 21 | * New machine type: stm32vldiscovery |
28 | * docs/generic-loader: mention U-Boot and Intel HEX executable formats | 22 | * hw/intc/arm_gicv3_cpuif: Fix virtual irq number check in icv_[dir|eoir]_write |
29 | * hw/intc/arm_gicv3_its: downgrade error_report to warn_report in kvm_arm_its_reset | 23 | * hw/gpio/pl061: Honour Luminary PL061 PUR and PDR registers |
30 | * imx_serial: Generate interrupt on receive data ready if enabled | 24 | * virt: Fix implementation of GPIO-based powerdown/shutdown mechanism |
31 | * Fix various minor bugs in AArch32 Hyp related coprocessor registers | 25 | * Correct the encoding of MDCCSR_EL0 and DBGDSCRint |
32 | * Permit accesses to ELR_Hyp from Hyp mode via MSR/MRS (banked) | 26 | * hw/intc: Improve formatting of MEMTX_ERROR guest error message |
33 | * Implement AArch32 ERET instruction | ||
34 | * hw/arm/virt: Add virt-3.1 machine type | ||
35 | * sdhci: add i.MX SD Stable Clock bit | ||
36 | * Remove now-obsolete MMIO request_ptr APIs | ||
37 | * hw/timer/m48t59: Move away from old_mmio accessors | ||
38 | * hw/watchdog/cmsdk_apb_watchdog: Implement CMSDK APB watchdog module | ||
39 | * nvic: Expose NMI line | ||
40 | * hw/dma/pl080: cleanups and new features required for use in MPS boards | ||
41 | 27 | ||
42 | ---------------------------------------------------------------- | 28 | ---------------------------------------------------------------- |
43 | Andrew Jones (1): | 29 | Alexandre Iooss (4): |
44 | hw/arm/virt: Add virt-3.1 machine type | 30 | stm32f100: Add the stm32f100 SoC |
31 | stm32vldiscovery: Add the STM32VLDISCOVERY Machine | ||
32 | docs/system: arm: Add stm32 boards description | ||
33 | tests/boot-serial-test: Add STM32VLDISCOVERY board testcase | ||
45 | 34 | ||
46 | Hans-Erik Floryd (2): | 35 | Peter Maydell (10): |
47 | imx_serial: Generate interrupt on receive data ready if enabled | 36 | hw/gpio/pl061: Convert DPRINTF to tracepoints |
48 | sdhci: add i.MX SD Stable Clock bit | 37 | hw/gpio/pl061: Clean up read/write offset handling logic |
38 | hw/gpio/pl061: Add tracepoints for register read and write | ||
39 | hw/gpio/pl061: Document the interface of this device | ||
40 | hw/gpio/pl061: Honour Luminary PL061 PUR and PDR registers | ||
41 | hw/gpio/pl061: Make pullup/pulldown of outputs configurable | ||
42 | hw/arm/virt: Make PL061 GPIO lines pulled low, not high | ||
43 | hw/gpio/pl061: Convert to 3-phase reset and assert GPIO lines correctly on reset | ||
44 | hw/gpio/pl061: Document a shortcoming in our implementation | ||
45 | hw/arm/stellaris: Expand comment about handling of OLED chipselect | ||
49 | 46 | ||
50 | Jia He (1): | 47 | Rebecca Cran (1): |
51 | hw/intc/arm_gicv3_its: downgrade error_report to warn_report in kvm_arm_its_reset | 48 | hw/intc: Improve formatting of MEMTX_ERROR guest error message |
52 | 49 | ||
53 | Peter Maydell (19): | 50 | Ricardo Koller (1): |
54 | target/arm: Correct typo in HAMAIR1 regdef name | 51 | hw/intc/arm_gicv3_cpuif: Fix virtual irq number check in icv_[dir|eoir]_write |
55 | target/arm: Add missing .cp = 15 to HMAIR1 and HAMAIR1 regdefs | ||
56 | target/arm: Implement AArch32 HVBAR | ||
57 | target/arm: Implement AArch32 Hyp FARs | ||
58 | target/arm: Implement ESR_EL2/HSR for AArch32 and no-EL2 | ||
59 | target/arm: Permit accesses to ELR_Hyp from Hyp mode via MSR/MRS (banked) | ||
60 | target/arm: Implement AArch32 ERET instruction | ||
61 | hw/ssi/xilinx_spips: Remove unneeded MMIO request_ptr code | ||
62 | memory: Remove MMIO request_ptr APIs | ||
63 | hw/misc: Remove mmio_interface device | ||
64 | hw/timer/m48t59: Move away from old_mmio accessors | ||
65 | hw/watchdog/cmsdk_apb_watchdog: Implement CMSDK APB watchdog module | ||
66 | nvic: Expose NMI line | ||
67 | hw/dma/pl080: Allow use as embedded-struct device | ||
68 | hw/dma/pl080: Support all three interrupt lines | ||
69 | hw/dma/pl080: Don't use CPU address space for DMA accesses | ||
70 | hw/dma/pl080: Provide device reset function | ||
71 | hw/dma/pl080: Correct bug in register address decode logic | ||
72 | hw/dma/pl080: Remove hw_error() if DMA is enabled | ||
73 | 52 | ||
74 | Roman Kapl (1): | 53 | hnick@vmware.com (1): |
75 | target/arm: Fix crash on conditional instruction in an IT block | 54 | target/arm: Correct the encoding of MDCCSR_EL0 and DBGDSCRint |
76 | 55 | ||
77 | Stefan Hajnoczi (1): | 56 | docs/system/arm/stm32.rst | 66 +++++++ |
78 | docs/generic-loader: mention U-Boot and Intel HEX executable formats | 57 | docs/system/target-arm.rst | 1 + |
58 | default-configs/devices/arm-softmmu.mak | 1 + | ||
59 | include/hw/arm/stm32f100_soc.h | 57 ++++++ | ||
60 | hw/arm/stellaris.c | 56 +++++- | ||
61 | hw/arm/stm32f100_soc.c | 182 +++++++++++++++++ | ||
62 | hw/arm/stm32vldiscovery.c | 66 +++++++ | ||
63 | hw/arm/virt.c | 3 + | ||
64 | hw/gpio/pl061.c | 341 +++++++++++++++++++++++++------- | ||
65 | hw/intc/arm_gicv3_cpuif.c | 4 +- | ||
66 | hw/intc/arm_gicv3_redist.c | 4 +- | ||
67 | target/arm/helper.c | 16 +- | ||
68 | tests/qtest/boot-serial-test.c | 37 ++++ | ||
69 | MAINTAINERS | 13 ++ | ||
70 | hw/arm/Kconfig | 10 + | ||
71 | hw/arm/meson.build | 2 + | ||
72 | hw/gpio/trace-events | 9 + | ||
73 | 17 files changed, 790 insertions(+), 78 deletions(-) | ||
74 | create mode 100644 docs/system/arm/stm32.rst | ||
75 | create mode 100644 include/hw/arm/stm32f100_soc.h | ||
76 | create mode 100644 hw/arm/stm32f100_soc.c | ||
77 | create mode 100644 hw/arm/stm32vldiscovery.c | ||
79 | 78 | ||
80 | docs/generic-loader.txt | 20 +- | ||
81 | Makefile.objs | 1 + | ||
82 | hw/misc/Makefile.objs | 1 - | ||
83 | hw/watchdog/Makefile.objs | 1 + | ||
84 | hw/sd/sdhci-internal.h | 2 + | ||
85 | include/exec/memory.h | 35 ---- | ||
86 | include/hw/char/imx_serial.h | 1 + | ||
87 | include/hw/dma/pl080.h | 71 +++++++ | ||
88 | include/hw/misc/mmio_interface.h | 49 ----- | ||
89 | include/hw/watchdog/cmsdk-apb-watchdog.h | 59 ++++++ | ||
90 | hw/arm/armv7m.c | 1 + | ||
91 | hw/arm/realview.c | 8 +- | ||
92 | hw/arm/versatilepb.c | 9 +- | ||
93 | hw/arm/virt.c | 23 ++- | ||
94 | hw/char/imx_serial.c | 3 +- | ||
95 | hw/dma/pl080.c | 113 ++++++----- | ||
96 | hw/intc/arm_gicv3_its_kvm.c | 2 +- | ||
97 | hw/intc/armv7m_nvic.c | 19 ++ | ||
98 | hw/misc/mmio_interface.c | 135 ------------- | ||
99 | hw/sd/sdhci.c | 8 + | ||
100 | hw/ssi/xilinx_spips.c | 46 ----- | ||
101 | hw/timer/m48t59.c | 59 ++---- | ||
102 | hw/watchdog/cmsdk-apb-watchdog.c | 326 +++++++++++++++++++++++++++++++ | ||
103 | memory.c | 110 ----------- | ||
104 | target/arm/helper.c | 36 +++- | ||
105 | target/arm/op_helper.c | 22 +-- | ||
106 | target/arm/translate.c | 76 +++++-- | ||
107 | MAINTAINERS | 3 + | ||
108 | default-configs/arm-softmmu.mak | 1 + | ||
109 | hw/intc/trace-events | 1 + | ||
110 | hw/watchdog/trace-events | 6 + | ||
111 | 31 files changed, 717 insertions(+), 530 deletions(-) | ||
112 | create mode 100644 include/hw/dma/pl080.h | ||
113 | delete mode 100644 include/hw/misc/mmio_interface.h | ||
114 | create mode 100644 include/hw/watchdog/cmsdk-apb-watchdog.h | ||
115 | delete mode 100644 hw/misc/mmio_interface.c | ||
116 | create mode 100644 hw/watchdog/cmsdk-apb-watchdog.c | ||
117 | create mode 100644 hw/watchdog/trace-events | ||
118 | diff view generated by jsdifflib |
1 | The Arm Cortex-M System Design Kit includes a simple watchdog module | 1 | From: Alexandre Iooss <erdnaxe@crans.org> |
---|---|---|---|
2 | based on a 32-bit down-counter. Implement this. | 2 | |
3 | 3 | This SoC is similar to stm32f205 SoC. | |
4 | This will be used by the STM32VLDISCOVERY to create a machine. | ||
5 | |||
6 | Signed-off-by: Alexandre Iooss <erdnaxe@crans.org> | ||
7 | Reviewed-by: Alistair Francis <alistair.francis@wdc.com> | ||
8 | Message-id: 20210617165647.2575955-2-erdnaxe@crans.org | ||
4 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 9 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
5 | --- | 10 | --- |
6 | Makefile.objs | 1 + | 11 | include/hw/arm/stm32f100_soc.h | 57 +++++++++++ |
7 | hw/watchdog/Makefile.objs | 1 + | 12 | hw/arm/stm32f100_soc.c | 182 +++++++++++++++++++++++++++++++++ |
8 | include/hw/watchdog/cmsdk-apb-watchdog.h | 59 ++++ | 13 | MAINTAINERS | 6 ++ |
9 | hw/watchdog/cmsdk-apb-watchdog.c | 326 +++++++++++++++++++++++ | 14 | hw/arm/Kconfig | 6 ++ |
10 | MAINTAINERS | 2 + | 15 | hw/arm/meson.build | 1 + |
11 | default-configs/arm-softmmu.mak | 1 + | 16 | 5 files changed, 252 insertions(+) |
12 | hw/watchdog/trace-events | 6 + | 17 | create mode 100644 include/hw/arm/stm32f100_soc.h |
13 | 7 files changed, 396 insertions(+) | 18 | create mode 100644 hw/arm/stm32f100_soc.c |
14 | create mode 100644 include/hw/watchdog/cmsdk-apb-watchdog.h | 19 | |
15 | create mode 100644 hw/watchdog/cmsdk-apb-watchdog.c | 20 | diff --git a/include/hw/arm/stm32f100_soc.h b/include/hw/arm/stm32f100_soc.h |
16 | create mode 100644 hw/watchdog/trace-events | ||
17 | |||
18 | diff --git a/Makefile.objs b/Makefile.objs | ||
19 | index XXXXXXX..XXXXXXX 100644 | ||
20 | --- a/Makefile.objs | ||
21 | +++ b/Makefile.objs | ||
22 | @@ -XXX,XX +XXX,XX @@ trace-events-subdirs += hw/tpm | ||
23 | trace-events-subdirs += hw/usb | ||
24 | trace-events-subdirs += hw/vfio | ||
25 | trace-events-subdirs += hw/virtio | ||
26 | +trace-events-subdirs += hw/watchdog | ||
27 | trace-events-subdirs += hw/xen | ||
28 | trace-events-subdirs += io | ||
29 | trace-events-subdirs += linux-user | ||
30 | diff --git a/hw/watchdog/Makefile.objs b/hw/watchdog/Makefile.objs | ||
31 | index XXXXXXX..XXXXXXX 100644 | ||
32 | --- a/hw/watchdog/Makefile.objs | ||
33 | +++ b/hw/watchdog/Makefile.objs | ||
34 | @@ -XXX,XX +XXX,XX @@ | ||
35 | common-obj-y += watchdog.o | ||
36 | +common-obj-$(CONFIG_CMSDK_APB_WATCHDOG) += cmsdk-apb-watchdog.o | ||
37 | common-obj-$(CONFIG_WDT_IB6300ESB) += wdt_i6300esb.o | ||
38 | common-obj-$(CONFIG_WDT_IB700) += wdt_ib700.o | ||
39 | common-obj-$(CONFIG_WDT_DIAG288) += wdt_diag288.o | ||
40 | diff --git a/include/hw/watchdog/cmsdk-apb-watchdog.h b/include/hw/watchdog/cmsdk-apb-watchdog.h | ||
41 | new file mode 100644 | 21 | new file mode 100644 |
42 | index XXXXXXX..XXXXXXX | 22 | index XXXXXXX..XXXXXXX |
43 | --- /dev/null | 23 | --- /dev/null |
44 | +++ b/include/hw/watchdog/cmsdk-apb-watchdog.h | 24 | +++ b/include/hw/arm/stm32f100_soc.h |
45 | @@ -XXX,XX +XXX,XX @@ | 25 | @@ -XXX,XX +XXX,XX @@ |
46 | +/* | 26 | +/* |
47 | + * ARM CMSDK APB watchdog emulation | 27 | + * STM32F100 SoC |
48 | + * | 28 | + * |
49 | + * Copyright (c) 2018 Linaro Limited | 29 | + * Copyright (c) 2021 Alexandre Iooss <erdnaxe@crans.org> |
50 | + * Written by Peter Maydell | 30 | + * |
51 | + * | 31 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
52 | + * This program is free software; you can redistribute it and/or modify | 32 | + * of this software and associated documentation files (the "Software"), to deal |
53 | + * it under the terms of the GNU General Public License version 2 or | 33 | + * in the Software without restriction, including without limitation the rights |
54 | + * (at your option) any later version. | 34 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
35 | + * copies of the Software, and to permit persons to whom the Software is | ||
36 | + * furnished to do so, subject to the following conditions: | ||
37 | + * | ||
38 | + * The above copyright notice and this permission notice shall be included in | ||
39 | + * all copies or substantial portions of the Software. | ||
40 | + * | ||
41 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
42 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
43 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
44 | + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
45 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
46 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
47 | + * THE SOFTWARE. | ||
55 | + */ | 48 | + */ |
56 | + | 49 | + |
57 | +/* | 50 | +#ifndef HW_ARM_STM32F100_SOC_H |
58 | + * This is a model of the "APB watchdog" which is part of the Cortex-M | 51 | +#define HW_ARM_STM32F100_SOC_H |
59 | + * System Design Kit (CMSDK) and documented in the Cortex-M System | 52 | + |
60 | + * Design Kit Technical Reference Manual (ARM DDI0479C): | 53 | +#include "hw/char/stm32f2xx_usart.h" |
61 | + * https://developer.arm.com/products/system-design/system-design-kits/cortex-m-system-design-kit | 54 | +#include "hw/ssi/stm32f2xx_spi.h" |
62 | + * | 55 | +#include "hw/arm/armv7m.h" |
63 | + * QEMU interface: | 56 | +#include "qom/object.h" |
64 | + * + QOM property "wdogclk-frq": frequency at which the watchdog is clocked | 57 | + |
65 | + * + sysbus MMIO region 0: the register bank | 58 | +#define TYPE_STM32F100_SOC "stm32f100-soc" |
66 | + * + sysbus IRQ 0: watchdog interrupt | 59 | +OBJECT_DECLARE_SIMPLE_TYPE(STM32F100State, STM32F100_SOC) |
67 | + * | 60 | + |
68 | + * In real hardware the watchdog's reset output is just a GPIO line | 61 | +#define STM_NUM_USARTS 3 |
69 | + * which can then be masked by the board or treated as a simple interrupt. | 62 | +#define STM_NUM_SPIS 2 |
70 | + * (For instance the IoTKit does this with the non-secure watchdog, so that | 63 | + |
71 | + * secure code can control whether non-secure code can perform a system | 64 | +#define FLASH_BASE_ADDRESS 0x08000000 |
72 | + * reset via its watchdog.) In QEMU, we just wire up the watchdog reset | 65 | +#define FLASH_SIZE (128 * 1024) |
73 | + * to watchdog_perform_action(), at least for the moment. | 66 | +#define SRAM_BASE_ADDRESS 0x20000000 |
74 | + */ | 67 | +#define SRAM_SIZE (8 * 1024) |
75 | + | 68 | + |
76 | +#ifndef CMSDK_APB_WATCHDOG_H | 69 | +struct STM32F100State { |
77 | +#define CMSDK_APB_WATCHDOG_H | ||
78 | + | ||
79 | +#include "hw/sysbus.h" | ||
80 | +#include "hw/ptimer.h" | ||
81 | + | ||
82 | +#define TYPE_CMSDK_APB_WATCHDOG "cmsdk-apb-watchdog" | ||
83 | +#define CMSDK_APB_WATCHDOG(obj) OBJECT_CHECK(CMSDKAPBWatchdog, (obj), \ | ||
84 | + TYPE_CMSDK_APB_WATCHDOG) | ||
85 | + | ||
86 | +typedef struct CMSDKAPBWatchdog { | ||
87 | + /*< private >*/ | 70 | + /*< private >*/ |
88 | + SysBusDevice parent_obj; | 71 | + SysBusDevice parent_obj; |
89 | + | 72 | + |
90 | + /*< public >*/ | 73 | + /*< public >*/ |
91 | + MemoryRegion iomem; | 74 | + char *cpu_type; |
92 | + qemu_irq wdogint; | 75 | + |
93 | + uint32_t wdogclk_frq; | 76 | + ARMv7MState armv7m; |
94 | + struct ptimer_state *timer; | 77 | + |
95 | + | 78 | + STM32F2XXUsartState usart[STM_NUM_USARTS]; |
96 | + uint32_t control; | 79 | + STM32F2XXSPIState spi[STM_NUM_SPIS]; |
97 | + uint32_t intstatus; | 80 | +}; |
98 | + uint32_t lock; | ||
99 | + uint32_t itcr; | ||
100 | + uint32_t itop; | ||
101 | + uint32_t resetstatus; | ||
102 | +} CMSDKAPBWatchdog; | ||
103 | + | 81 | + |
104 | +#endif | 82 | +#endif |
105 | diff --git a/hw/watchdog/cmsdk-apb-watchdog.c b/hw/watchdog/cmsdk-apb-watchdog.c | 83 | diff --git a/hw/arm/stm32f100_soc.c b/hw/arm/stm32f100_soc.c |
106 | new file mode 100644 | 84 | new file mode 100644 |
107 | index XXXXXXX..XXXXXXX | 85 | index XXXXXXX..XXXXXXX |
108 | --- /dev/null | 86 | --- /dev/null |
109 | +++ b/hw/watchdog/cmsdk-apb-watchdog.c | 87 | +++ b/hw/arm/stm32f100_soc.c |
110 | @@ -XXX,XX +XXX,XX @@ | 88 | @@ -XXX,XX +XXX,XX @@ |
111 | +/* | 89 | +/* |
112 | + * ARM CMSDK APB watchdog emulation | 90 | + * STM32F100 SoC |
113 | + * | 91 | + * |
114 | + * Copyright (c) 2018 Linaro Limited | 92 | + * Copyright (c) 2021 Alexandre Iooss <erdnaxe@crans.org> |
115 | + * Written by Peter Maydell | 93 | + * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me> |
116 | + * | 94 | + * |
117 | + * This program is free software; you can redistribute it and/or modify | 95 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
118 | + * it under the terms of the GNU General Public License version 2 or | 96 | + * of this software and associated documentation files (the "Software"), to deal |
119 | + * (at your option) any later version. | 97 | + * in the Software without restriction, including without limitation the rights |
98 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
99 | + * copies of the Software, and to permit persons to whom the Software is | ||
100 | + * furnished to do so, subject to the following conditions: | ||
101 | + * | ||
102 | + * The above copyright notice and this permission notice shall be included in | ||
103 | + * all copies or substantial portions of the Software. | ||
104 | + * | ||
105 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
106 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
107 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
108 | + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
109 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
110 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
111 | + * THE SOFTWARE. | ||
120 | + */ | 112 | + */ |
121 | + | 113 | + |
122 | +/* | ||
123 | + * This is a model of the "APB watchdog" which is part of the Cortex-M | ||
124 | + * System Design Kit (CMSDK) and documented in the Cortex-M System | ||
125 | + * Design Kit Technical Reference Manual (ARM DDI0479C): | ||
126 | + * https://developer.arm.com/products/system-design/system-design-kits/cortex-m-system-design-kit | ||
127 | + */ | ||
128 | + | ||
129 | +#include "qemu/osdep.h" | 114 | +#include "qemu/osdep.h" |
130 | +#include "qemu/log.h" | ||
131 | +#include "trace.h" | ||
132 | +#include "qapi/error.h" | 115 | +#include "qapi/error.h" |
133 | +#include "qemu/main-loop.h" | 116 | +#include "qemu/module.h" |
134 | +#include "sysemu/watchdog.h" | 117 | +#include "hw/arm/boot.h" |
135 | +#include "hw/sysbus.h" | 118 | +#include "exec/address-spaces.h" |
136 | +#include "hw/registerfields.h" | 119 | +#include "hw/arm/stm32f100_soc.h" |
137 | +#include "hw/watchdog/cmsdk-apb-watchdog.h" | 120 | +#include "hw/qdev-properties.h" |
138 | + | 121 | +#include "hw/misc/unimp.h" |
139 | +REG32(WDOGLOAD, 0x0) | 122 | +#include "sysemu/sysemu.h" |
140 | +REG32(WDOGVALUE, 0x4) | 123 | + |
141 | +REG32(WDOGCONTROL, 0x8) | 124 | +/* stm32f100_soc implementation is derived from stm32f205_soc */ |
142 | + FIELD(WDOGCONTROL, INTEN, 0, 1) | 125 | + |
143 | + FIELD(WDOGCONTROL, RESEN, 1, 1) | 126 | +static const uint32_t usart_addr[STM_NUM_USARTS] = { 0x40013800, 0x40004400, |
144 | +#define R_WDOGCONTROL_VALID_MASK (R_WDOGCONTROL_INTEN_MASK | \ | 127 | + 0x40004800 }; |
145 | + R_WDOGCONTROL_RESEN_MASK) | 128 | +static const uint32_t spi_addr[STM_NUM_SPIS] = { 0x40013000, 0x40003800 }; |
146 | +REG32(WDOGINTCLR, 0xc) | 129 | + |
147 | +REG32(WDOGRIS, 0x10) | 130 | +static const int usart_irq[STM_NUM_USARTS] = {37, 38, 39}; |
148 | + FIELD(WDOGRIS, INT, 0, 1) | 131 | +static const int spi_irq[STM_NUM_SPIS] = {35, 36}; |
149 | +REG32(WDOGMIS, 0x14) | 132 | + |
150 | +REG32(WDOGLOCK, 0xc00) | 133 | +static void stm32f100_soc_initfn(Object *obj) |
151 | +#define WDOG_UNLOCK_VALUE 0x1ACCE551 | ||
152 | +REG32(WDOGITCR, 0xf00) | ||
153 | + FIELD(WDOGITCR, ENABLE, 0, 1) | ||
154 | +#define R_WDOGITCR_VALID_MASK R_WDOGITCR_ENABLE_MASK | ||
155 | +REG32(WDOGITOP, 0xf04) | ||
156 | + FIELD(WDOGITOP, WDOGRES, 0, 1) | ||
157 | + FIELD(WDOGITOP, WDOGINT, 1, 1) | ||
158 | +#define R_WDOGITOP_VALID_MASK (R_WDOGITOP_WDOGRES_MASK | \ | ||
159 | + R_WDOGITOP_WDOGINT_MASK) | ||
160 | +REG32(PID4, 0xfd0) | ||
161 | +REG32(PID5, 0xfd4) | ||
162 | +REG32(PID6, 0xfd8) | ||
163 | +REG32(PID7, 0xfdc) | ||
164 | +REG32(PID0, 0xfe0) | ||
165 | +REG32(PID1, 0xfe4) | ||
166 | +REG32(PID2, 0xfe8) | ||
167 | +REG32(PID3, 0xfec) | ||
168 | +REG32(CID0, 0xff0) | ||
169 | +REG32(CID1, 0xff4) | ||
170 | +REG32(CID2, 0xff8) | ||
171 | +REG32(CID3, 0xffc) | ||
172 | + | ||
173 | +/* PID/CID values */ | ||
174 | +static const int watchdog_id[] = { | ||
175 | + 0x04, 0x00, 0x00, 0x00, /* PID4..PID7 */ | ||
176 | + 0x24, 0xb8, 0x1b, 0x00, /* PID0..PID3 */ | ||
177 | + 0x0d, 0xf0, 0x05, 0xb1, /* CID0..CID3 */ | ||
178 | +}; | ||
179 | + | ||
180 | +static bool cmsdk_apb_watchdog_intstatus(CMSDKAPBWatchdog *s) | ||
181 | +{ | 134 | +{ |
182 | + /* Return masked interrupt status */ | 135 | + STM32F100State *s = STM32F100_SOC(obj); |
183 | + return s->intstatus && (s->control & R_WDOGCONTROL_INTEN_MASK); | 136 | + int i; |
137 | + | ||
138 | + object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M); | ||
139 | + | ||
140 | + for (i = 0; i < STM_NUM_USARTS; i++) { | ||
141 | + object_initialize_child(obj, "usart[*]", &s->usart[i], | ||
142 | + TYPE_STM32F2XX_USART); | ||
143 | + } | ||
144 | + | ||
145 | + for (i = 0; i < STM_NUM_SPIS; i++) { | ||
146 | + object_initialize_child(obj, "spi[*]", &s->spi[i], TYPE_STM32F2XX_SPI); | ||
147 | + } | ||
184 | +} | 148 | +} |
185 | + | 149 | + |
186 | +static bool cmsdk_apb_watchdog_resetstatus(CMSDKAPBWatchdog *s) | 150 | +static void stm32f100_soc_realize(DeviceState *dev_soc, Error **errp) |
187 | +{ | 151 | +{ |
188 | + /* Return masked reset status */ | 152 | + STM32F100State *s = STM32F100_SOC(dev_soc); |
189 | + return s->resetstatus && (s->control & R_WDOGCONTROL_RESEN_MASK); | 153 | + DeviceState *dev, *armv7m; |
154 | + SysBusDevice *busdev; | ||
155 | + int i; | ||
156 | + | ||
157 | + MemoryRegion *system_memory = get_system_memory(); | ||
158 | + MemoryRegion *sram = g_new(MemoryRegion, 1); | ||
159 | + MemoryRegion *flash = g_new(MemoryRegion, 1); | ||
160 | + MemoryRegion *flash_alias = g_new(MemoryRegion, 1); | ||
161 | + | ||
162 | + /* | ||
163 | + * Init flash region | ||
164 | + * Flash starts at 0x08000000 and then is aliased to boot memory at 0x0 | ||
165 | + */ | ||
166 | + memory_region_init_rom(flash, OBJECT(dev_soc), "STM32F100.flash", | ||
167 | + FLASH_SIZE, &error_fatal); | ||
168 | + memory_region_init_alias(flash_alias, OBJECT(dev_soc), | ||
169 | + "STM32F100.flash.alias", flash, 0, FLASH_SIZE); | ||
170 | + memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, flash); | ||
171 | + memory_region_add_subregion(system_memory, 0, flash_alias); | ||
172 | + | ||
173 | + /* Init SRAM region */ | ||
174 | + memory_region_init_ram(sram, NULL, "STM32F100.sram", SRAM_SIZE, | ||
175 | + &error_fatal); | ||
176 | + memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, sram); | ||
177 | + | ||
178 | + /* Init ARMv7m */ | ||
179 | + armv7m = DEVICE(&s->armv7m); | ||
180 | + qdev_prop_set_uint32(armv7m, "num-irq", 61); | ||
181 | + qdev_prop_set_string(armv7m, "cpu-type", s->cpu_type); | ||
182 | + qdev_prop_set_bit(armv7m, "enable-bitband", true); | ||
183 | + object_property_set_link(OBJECT(&s->armv7m), "memory", | ||
184 | + OBJECT(get_system_memory()), &error_abort); | ||
185 | + if (!sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), errp)) { | ||
186 | + return; | ||
187 | + } | ||
188 | + | ||
189 | + /* Attach UART (uses USART registers) and USART controllers */ | ||
190 | + for (i = 0; i < STM_NUM_USARTS; i++) { | ||
191 | + dev = DEVICE(&(s->usart[i])); | ||
192 | + qdev_prop_set_chr(dev, "chardev", serial_hd(i)); | ||
193 | + if (!sysbus_realize(SYS_BUS_DEVICE(&s->usart[i]), errp)) { | ||
194 | + return; | ||
195 | + } | ||
196 | + busdev = SYS_BUS_DEVICE(dev); | ||
197 | + sysbus_mmio_map(busdev, 0, usart_addr[i]); | ||
198 | + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_irq[i])); | ||
199 | + } | ||
200 | + | ||
201 | + /* SPI 1 and 2 */ | ||
202 | + for (i = 0; i < STM_NUM_SPIS; i++) { | ||
203 | + dev = DEVICE(&(s->spi[i])); | ||
204 | + if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) { | ||
205 | + return; | ||
206 | + } | ||
207 | + busdev = SYS_BUS_DEVICE(dev); | ||
208 | + sysbus_mmio_map(busdev, 0, spi_addr[i]); | ||
209 | + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, spi_irq[i])); | ||
210 | + } | ||
211 | + | ||
212 | + create_unimplemented_device("timer[2]", 0x40000000, 0x400); | ||
213 | + create_unimplemented_device("timer[3]", 0x40000400, 0x400); | ||
214 | + create_unimplemented_device("timer[4]", 0x40000800, 0x400); | ||
215 | + create_unimplemented_device("timer[6]", 0x40001000, 0x400); | ||
216 | + create_unimplemented_device("timer[7]", 0x40001400, 0x400); | ||
217 | + create_unimplemented_device("RTC", 0x40002800, 0x400); | ||
218 | + create_unimplemented_device("WWDG", 0x40002C00, 0x400); | ||
219 | + create_unimplemented_device("IWDG", 0x40003000, 0x400); | ||
220 | + create_unimplemented_device("I2C1", 0x40005400, 0x400); | ||
221 | + create_unimplemented_device("I2C2", 0x40005800, 0x400); | ||
222 | + create_unimplemented_device("BKP", 0x40006C00, 0x400); | ||
223 | + create_unimplemented_device("PWR", 0x40007000, 0x400); | ||
224 | + create_unimplemented_device("DAC", 0x40007400, 0x400); | ||
225 | + create_unimplemented_device("CEC", 0x40007800, 0x400); | ||
226 | + create_unimplemented_device("AFIO", 0x40010000, 0x400); | ||
227 | + create_unimplemented_device("EXTI", 0x40010400, 0x400); | ||
228 | + create_unimplemented_device("GPIOA", 0x40010800, 0x400); | ||
229 | + create_unimplemented_device("GPIOB", 0x40010C00, 0x400); | ||
230 | + create_unimplemented_device("GPIOC", 0x40011000, 0x400); | ||
231 | + create_unimplemented_device("GPIOD", 0x40011400, 0x400); | ||
232 | + create_unimplemented_device("GPIOE", 0x40011800, 0x400); | ||
233 | + create_unimplemented_device("ADC1", 0x40012400, 0x400); | ||
234 | + create_unimplemented_device("timer[1]", 0x40012C00, 0x400); | ||
235 | + create_unimplemented_device("timer[15]", 0x40014000, 0x400); | ||
236 | + create_unimplemented_device("timer[16]", 0x40014400, 0x400); | ||
237 | + create_unimplemented_device("timer[17]", 0x40014800, 0x400); | ||
238 | + create_unimplemented_device("DMA", 0x40020000, 0x400); | ||
239 | + create_unimplemented_device("RCC", 0x40021000, 0x400); | ||
240 | + create_unimplemented_device("Flash Int", 0x40022000, 0x400); | ||
241 | + create_unimplemented_device("CRC", 0x40023000, 0x400); | ||
190 | +} | 242 | +} |
191 | + | 243 | + |
192 | +static void cmsdk_apb_watchdog_update(CMSDKAPBWatchdog *s) | 244 | +static Property stm32f100_soc_properties[] = { |
193 | +{ | 245 | + DEFINE_PROP_STRING("cpu-type", STM32F100State, cpu_type), |
194 | + bool wdogint; | ||
195 | + bool wdogres; | ||
196 | + | ||
197 | + if (s->itcr) { | ||
198 | + wdogint = s->itop & R_WDOGITOP_WDOGINT_MASK; | ||
199 | + wdogres = s->itop & R_WDOGITOP_WDOGRES_MASK; | ||
200 | + } else { | ||
201 | + wdogint = cmsdk_apb_watchdog_intstatus(s); | ||
202 | + wdogres = cmsdk_apb_watchdog_resetstatus(s); | ||
203 | + } | ||
204 | + | ||
205 | + qemu_set_irq(s->wdogint, wdogint); | ||
206 | + if (wdogres) { | ||
207 | + watchdog_perform_action(); | ||
208 | + } | ||
209 | +} | ||
210 | + | ||
211 | +static uint64_t cmsdk_apb_watchdog_read(void *opaque, hwaddr offset, | ||
212 | + unsigned size) | ||
213 | +{ | ||
214 | + CMSDKAPBWatchdog *s = CMSDK_APB_WATCHDOG(opaque); | ||
215 | + uint64_t r; | ||
216 | + | ||
217 | + switch (offset) { | ||
218 | + case A_WDOGLOAD: | ||
219 | + r = ptimer_get_limit(s->timer); | ||
220 | + break; | ||
221 | + case A_WDOGVALUE: | ||
222 | + r = ptimer_get_count(s->timer); | ||
223 | + break; | ||
224 | + case A_WDOGCONTROL: | ||
225 | + r = s->control; | ||
226 | + break; | ||
227 | + case A_WDOGRIS: | ||
228 | + r = s->intstatus; | ||
229 | + break; | ||
230 | + case A_WDOGMIS: | ||
231 | + r = cmsdk_apb_watchdog_intstatus(s); | ||
232 | + break; | ||
233 | + case A_WDOGLOCK: | ||
234 | + r = s->lock; | ||
235 | + break; | ||
236 | + case A_WDOGITCR: | ||
237 | + r = s->itcr; | ||
238 | + break; | ||
239 | + case A_PID4 ... A_CID3: | ||
240 | + r = watchdog_id[(offset - A_PID4) / 4]; | ||
241 | + break; | ||
242 | + case A_WDOGINTCLR: | ||
243 | + case A_WDOGITOP: | ||
244 | + qemu_log_mask(LOG_GUEST_ERROR, | ||
245 | + "CMSDK APB watchdog read: read of WO offset %x\n", | ||
246 | + (int)offset); | ||
247 | + r = 0; | ||
248 | + break; | ||
249 | + default: | ||
250 | + qemu_log_mask(LOG_GUEST_ERROR, | ||
251 | + "CMSDK APB watchdog read: bad offset %x\n", (int)offset); | ||
252 | + r = 0; | ||
253 | + break; | ||
254 | + } | ||
255 | + trace_cmsdk_apb_watchdog_read(offset, r, size); | ||
256 | + return r; | ||
257 | +} | ||
258 | + | ||
259 | +static void cmsdk_apb_watchdog_write(void *opaque, hwaddr offset, | ||
260 | + uint64_t value, unsigned size) | ||
261 | +{ | ||
262 | + CMSDKAPBWatchdog *s = CMSDK_APB_WATCHDOG(opaque); | ||
263 | + | ||
264 | + trace_cmsdk_apb_watchdog_write(offset, value, size); | ||
265 | + | ||
266 | + if (s->lock && offset != A_WDOGLOCK) { | ||
267 | + /* Write access is disabled via WDOGLOCK */ | ||
268 | + qemu_log_mask(LOG_GUEST_ERROR, | ||
269 | + "CMSDK APB watchdog write: write to locked watchdog\n"); | ||
270 | + return; | ||
271 | + } | ||
272 | + | ||
273 | + switch (offset) { | ||
274 | + case A_WDOGLOAD: | ||
275 | + /* | ||
276 | + * Reset the load value and the current count, and make sure | ||
277 | + * we're counting. | ||
278 | + */ | ||
279 | + ptimer_set_limit(s->timer, value, 1); | ||
280 | + ptimer_run(s->timer, 0); | ||
281 | + break; | ||
282 | + case A_WDOGCONTROL: | ||
283 | + s->control = value & R_WDOGCONTROL_VALID_MASK; | ||
284 | + cmsdk_apb_watchdog_update(s); | ||
285 | + break; | ||
286 | + case A_WDOGINTCLR: | ||
287 | + s->intstatus = 0; | ||
288 | + ptimer_set_count(s->timer, ptimer_get_limit(s->timer)); | ||
289 | + cmsdk_apb_watchdog_update(s); | ||
290 | + break; | ||
291 | + case A_WDOGLOCK: | ||
292 | + s->lock = (value != WDOG_UNLOCK_VALUE); | ||
293 | + break; | ||
294 | + case A_WDOGITCR: | ||
295 | + s->itcr = value & R_WDOGITCR_VALID_MASK; | ||
296 | + cmsdk_apb_watchdog_update(s); | ||
297 | + break; | ||
298 | + case A_WDOGITOP: | ||
299 | + s->itop = value & R_WDOGITOP_VALID_MASK; | ||
300 | + cmsdk_apb_watchdog_update(s); | ||
301 | + break; | ||
302 | + case A_WDOGVALUE: | ||
303 | + case A_WDOGRIS: | ||
304 | + case A_WDOGMIS: | ||
305 | + case A_PID4 ... A_CID3: | ||
306 | + qemu_log_mask(LOG_GUEST_ERROR, | ||
307 | + "CMSDK APB watchdog write: write to RO offset 0x%x\n", | ||
308 | + (int)offset); | ||
309 | + break; | ||
310 | + default: | ||
311 | + qemu_log_mask(LOG_GUEST_ERROR, | ||
312 | + "CMSDK APB watchdog write: bad offset 0x%x\n", | ||
313 | + (int)offset); | ||
314 | + break; | ||
315 | + } | ||
316 | +} | ||
317 | + | ||
318 | +static const MemoryRegionOps cmsdk_apb_watchdog_ops = { | ||
319 | + .read = cmsdk_apb_watchdog_read, | ||
320 | + .write = cmsdk_apb_watchdog_write, | ||
321 | + .endianness = DEVICE_LITTLE_ENDIAN, | ||
322 | + /* byte/halfword accesses are just zero-padded on reads and writes */ | ||
323 | + .impl.min_access_size = 4, | ||
324 | + .impl.max_access_size = 4, | ||
325 | + .valid.min_access_size = 1, | ||
326 | + .valid.max_access_size = 4, | ||
327 | +}; | ||
328 | + | ||
329 | +static void cmsdk_apb_watchdog_tick(void *opaque) | ||
330 | +{ | ||
331 | + CMSDKAPBWatchdog *s = CMSDK_APB_WATCHDOG(opaque); | ||
332 | + | ||
333 | + if (!s->intstatus) { | ||
334 | + /* Count expired for the first time: raise interrupt */ | ||
335 | + s->intstatus = R_WDOGRIS_INT_MASK; | ||
336 | + } else { | ||
337 | + /* Count expired for the second time: raise reset and stop clock */ | ||
338 | + s->resetstatus = 1; | ||
339 | + ptimer_stop(s->timer); | ||
340 | + } | ||
341 | + cmsdk_apb_watchdog_update(s); | ||
342 | +} | ||
343 | + | ||
344 | +static void cmsdk_apb_watchdog_reset(DeviceState *dev) | ||
345 | +{ | ||
346 | + CMSDKAPBWatchdog *s = CMSDK_APB_WATCHDOG(dev); | ||
347 | + | ||
348 | + trace_cmsdk_apb_watchdog_reset(); | ||
349 | + s->control = 0; | ||
350 | + s->intstatus = 0; | ||
351 | + s->lock = 0; | ||
352 | + s->itcr = 0; | ||
353 | + s->itop = 0; | ||
354 | + s->resetstatus = 0; | ||
355 | + /* Set the limit and the count */ | ||
356 | + ptimer_set_limit(s->timer, 0xffffffff, 1); | ||
357 | + ptimer_run(s->timer, 0); | ||
358 | +} | ||
359 | + | ||
360 | +static void cmsdk_apb_watchdog_init(Object *obj) | ||
361 | +{ | ||
362 | + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); | ||
363 | + CMSDKAPBWatchdog *s = CMSDK_APB_WATCHDOG(obj); | ||
364 | + | ||
365 | + memory_region_init_io(&s->iomem, obj, &cmsdk_apb_watchdog_ops, | ||
366 | + s, "cmsdk-apb-watchdog", 0x1000); | ||
367 | + sysbus_init_mmio(sbd, &s->iomem); | ||
368 | + sysbus_init_irq(sbd, &s->wdogint); | ||
369 | +} | ||
370 | + | ||
371 | +static void cmsdk_apb_watchdog_realize(DeviceState *dev, Error **errp) | ||
372 | +{ | ||
373 | + CMSDKAPBWatchdog *s = CMSDK_APB_WATCHDOG(dev); | ||
374 | + QEMUBH *bh; | ||
375 | + | ||
376 | + if (s->wdogclk_frq == 0) { | ||
377 | + error_setg(errp, | ||
378 | + "CMSDK APB watchdog: wdogclk-frq property must be set"); | ||
379 | + return; | ||
380 | + } | ||
381 | + | ||
382 | + bh = qemu_bh_new(cmsdk_apb_watchdog_tick, s); | ||
383 | + s->timer = ptimer_init(bh, | ||
384 | + PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD | | ||
385 | + PTIMER_POLICY_TRIGGER_ONLY_ON_DECREMENT | | ||
386 | + PTIMER_POLICY_NO_IMMEDIATE_RELOAD | | ||
387 | + PTIMER_POLICY_NO_COUNTER_ROUND_DOWN); | ||
388 | + | ||
389 | + ptimer_set_freq(s->timer, s->wdogclk_frq); | ||
390 | +} | ||
391 | + | ||
392 | +static const VMStateDescription cmsdk_apb_watchdog_vmstate = { | ||
393 | + .name = "cmsdk-apb-watchdog", | ||
394 | + .version_id = 1, | ||
395 | + .minimum_version_id = 1, | ||
396 | + .fields = (VMStateField[]) { | ||
397 | + VMSTATE_PTIMER(timer, CMSDKAPBWatchdog), | ||
398 | + VMSTATE_UINT32(control, CMSDKAPBWatchdog), | ||
399 | + VMSTATE_UINT32(intstatus, CMSDKAPBWatchdog), | ||
400 | + VMSTATE_UINT32(lock, CMSDKAPBWatchdog), | ||
401 | + VMSTATE_UINT32(itcr, CMSDKAPBWatchdog), | ||
402 | + VMSTATE_UINT32(itop, CMSDKAPBWatchdog), | ||
403 | + VMSTATE_UINT32(resetstatus, CMSDKAPBWatchdog), | ||
404 | + VMSTATE_END_OF_LIST() | ||
405 | + } | ||
406 | +}; | ||
407 | + | ||
408 | +static Property cmsdk_apb_watchdog_properties[] = { | ||
409 | + DEFINE_PROP_UINT32("wdogclk-frq", CMSDKAPBWatchdog, wdogclk_frq, 0), | ||
410 | + DEFINE_PROP_END_OF_LIST(), | 246 | + DEFINE_PROP_END_OF_LIST(), |
411 | +}; | 247 | +}; |
412 | + | 248 | + |
413 | +static void cmsdk_apb_watchdog_class_init(ObjectClass *klass, void *data) | 249 | +static void stm32f100_soc_class_init(ObjectClass *klass, void *data) |
414 | +{ | 250 | +{ |
415 | + DeviceClass *dc = DEVICE_CLASS(klass); | 251 | + DeviceClass *dc = DEVICE_CLASS(klass); |
416 | + | 252 | + |
417 | + dc->realize = cmsdk_apb_watchdog_realize; | 253 | + dc->realize = stm32f100_soc_realize; |
418 | + dc->vmsd = &cmsdk_apb_watchdog_vmstate; | 254 | + device_class_set_props(dc, stm32f100_soc_properties); |
419 | + dc->reset = cmsdk_apb_watchdog_reset; | ||
420 | + dc->props = cmsdk_apb_watchdog_properties; | ||
421 | +} | 255 | +} |
422 | + | 256 | + |
423 | +static const TypeInfo cmsdk_apb_watchdog_info = { | 257 | +static const TypeInfo stm32f100_soc_info = { |
424 | + .name = TYPE_CMSDK_APB_WATCHDOG, | 258 | + .name = TYPE_STM32F100_SOC, |
425 | + .parent = TYPE_SYS_BUS_DEVICE, | 259 | + .parent = TYPE_SYS_BUS_DEVICE, |
426 | + .instance_size = sizeof(CMSDKAPBWatchdog), | 260 | + .instance_size = sizeof(STM32F100State), |
427 | + .instance_init = cmsdk_apb_watchdog_init, | 261 | + .instance_init = stm32f100_soc_initfn, |
428 | + .class_init = cmsdk_apb_watchdog_class_init, | 262 | + .class_init = stm32f100_soc_class_init, |
429 | +}; | 263 | +}; |
430 | + | 264 | + |
431 | +static void cmsdk_apb_watchdog_register_types(void) | 265 | +static void stm32f100_soc_types(void) |
432 | +{ | 266 | +{ |
433 | + type_register_static(&cmsdk_apb_watchdog_info); | 267 | + type_register_static(&stm32f100_soc_info); |
434 | +} | 268 | +} |
435 | + | 269 | + |
436 | +type_init(cmsdk_apb_watchdog_register_types); | 270 | +type_init(stm32f100_soc_types) |
437 | diff --git a/MAINTAINERS b/MAINTAINERS | 271 | diff --git a/MAINTAINERS b/MAINTAINERS |
438 | index XXXXXXX..XXXXXXX 100644 | 272 | index XXXXXXX..XXXXXXX 100644 |
439 | --- a/MAINTAINERS | 273 | --- a/MAINTAINERS |
440 | +++ b/MAINTAINERS | 274 | +++ b/MAINTAINERS |
441 | @@ -XXX,XX +XXX,XX @@ F: hw/timer/cmsdk-apb-timer.c | 275 | @@ -XXX,XX +XXX,XX @@ L: qemu-arm@nongnu.org |
442 | F: include/hw/timer/cmsdk-apb-timer.h | 276 | S: Maintained |
443 | F: hw/char/cmsdk-apb-uart.c | 277 | F: hw/arm/virt-acpi-build.c |
444 | F: include/hw/char/cmsdk-apb-uart.h | 278 | |
445 | +F: hw/watchdog/cmsdk-apb-watchdog.c | 279 | +STM32F100 |
446 | +F: include/hw/watchdog/cmsdk-apb-watchdog.h | 280 | +M: Alexandre Iooss <erdnaxe@crans.org> |
447 | F: hw/misc/tz-ppc.c | 281 | +L: qemu-arm@nongnu.org |
448 | F: include/hw/misc/tz-ppc.h | 282 | +S: Maintained |
449 | F: hw/misc/tz-mpc.c | 283 | +F: hw/arm/stm32f100_soc.c |
450 | diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak | 284 | + |
285 | STM32F205 | ||
286 | M: Alistair Francis <alistair@alistair23.me> | ||
287 | M: Peter Maydell <peter.maydell@linaro.org> | ||
288 | diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig | ||
451 | index XXXXXXX..XXXXXXX 100644 | 289 | index XXXXXXX..XXXXXXX 100644 |
452 | --- a/default-configs/arm-softmmu.mak | 290 | --- a/hw/arm/Kconfig |
453 | +++ b/default-configs/arm-softmmu.mak | 291 | +++ b/hw/arm/Kconfig |
454 | @@ -XXX,XX +XXX,XX @@ CONFIG_STM32F205_SOC=y | 292 | @@ -XXX,XX +XXX,XX @@ config RASPI |
455 | 293 | select SDHCI | |
456 | CONFIG_CMSDK_APB_TIMER=y | 294 | select USB_DWC2 |
457 | CONFIG_CMSDK_APB_UART=y | 295 | |
458 | +CONFIG_CMSDK_APB_WATCHDOG=y | 296 | +config STM32F100_SOC |
459 | 297 | + bool | |
460 | CONFIG_MPS2_FPGAIO=y | 298 | + select ARM_V7M |
461 | CONFIG_MPS2_SCC=y | 299 | + select STM32F2XX_USART |
462 | diff --git a/hw/watchdog/trace-events b/hw/watchdog/trace-events | 300 | + select STM32F2XX_SPI |
463 | new file mode 100644 | 301 | + |
464 | index XXXXXXX..XXXXXXX | 302 | config STM32F205_SOC |
465 | --- /dev/null | 303 | bool |
466 | +++ b/hw/watchdog/trace-events | 304 | select ARM_V7M |
467 | @@ -XXX,XX +XXX,XX @@ | 305 | diff --git a/hw/arm/meson.build b/hw/arm/meson.build |
468 | +# See docs/devel/tracing.txt for syntax documentation. | 306 | index XXXXXXX..XXXXXXX 100644 |
469 | + | 307 | --- a/hw/arm/meson.build |
470 | +# hw/char/cmsdk_apb_watchdog.c | 308 | +++ b/hw/arm/meson.build |
471 | +cmsdk_apb_watchdog_read(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB watchdog read: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u" | 309 | @@ -XXX,XX +XXX,XX @@ arm_ss.add(when: 'CONFIG_STRONGARM', if_true: files('strongarm.c')) |
472 | +cmsdk_apb_watchdog_write(uint64_t offset, uint64_t data, unsigned size) "CMSDK APB watchdog write: offset 0x%" PRIx64 " data 0x%" PRIx64 " size %u" | 310 | arm_ss.add(when: 'CONFIG_ALLWINNER_A10', if_true: files('allwinner-a10.c', 'cubieboard.c')) |
473 | +cmsdk_apb_watchdog_reset(void) "CMSDK APB watchdog: reset" | 311 | arm_ss.add(when: 'CONFIG_ALLWINNER_H3', if_true: files('allwinner-h3.c', 'orangepi.c')) |
312 | arm_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_peripherals.c', 'bcm2836.c', 'raspi.c')) | ||
313 | +arm_ss.add(when: 'CONFIG_STM32F100_SOC', if_true: files('stm32f100_soc.c')) | ||
314 | arm_ss.add(when: 'CONFIG_STM32F205_SOC', if_true: files('stm32f205_soc.c')) | ||
315 | arm_ss.add(when: 'CONFIG_STM32F405_SOC', if_true: files('stm32f405_soc.c')) | ||
316 | arm_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx-zynqmp.c', 'xlnx-zcu102.c')) | ||
474 | -- | 317 | -- |
475 | 2.18.0 | 318 | 2.20.1 |
476 | 319 | ||
477 | 320 | diff view generated by jsdifflib |
1 | Create a new include file for the pl081's device struct, | 1 | From: Alexandre Iooss <erdnaxe@crans.org> |
---|---|---|---|
2 | type macros, etc, so that it can be instantiated using | ||
3 | the "embedded struct" coding style. | ||
4 | 2 | ||
3 | This is a Cortex-M3 based machine. Information can be found at: | ||
4 | https://www.st.com/en/evaluation-tools/stm32vldiscovery.html | ||
5 | |||
6 | Signed-off-by: Alexandre Iooss <erdnaxe@crans.org> | ||
7 | Reviewed-by: Alistair Francis <alistair.francis@wdc.com> | ||
8 | Message-id: 20210617165647.2575955-3-erdnaxe@crans.org | ||
5 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 9 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
6 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | ||
7 | --- | 10 | --- |
8 | include/hw/dma/pl080.h | 62 ++++++++++++++++++++++++++++++++++++++++++ | 11 | default-configs/devices/arm-softmmu.mak | 1 + |
9 | hw/dma/pl080.c | 34 ++--------------------- | 12 | hw/arm/stm32vldiscovery.c | 66 +++++++++++++++++++++++++ |
10 | MAINTAINERS | 1 + | 13 | MAINTAINERS | 6 +++ |
11 | 3 files changed, 65 insertions(+), 32 deletions(-) | 14 | hw/arm/Kconfig | 4 ++ |
12 | create mode 100644 include/hw/dma/pl080.h | 15 | hw/arm/meson.build | 1 + |
16 | 5 files changed, 78 insertions(+) | ||
17 | create mode 100644 hw/arm/stm32vldiscovery.c | ||
13 | 18 | ||
14 | diff --git a/include/hw/dma/pl080.h b/include/hw/dma/pl080.h | 19 | diff --git a/default-configs/devices/arm-softmmu.mak b/default-configs/devices/arm-softmmu.mak |
20 | index XXXXXXX..XXXXXXX 100644 | ||
21 | --- a/default-configs/devices/arm-softmmu.mak | ||
22 | +++ b/default-configs/devices/arm-softmmu.mak | ||
23 | @@ -XXX,XX +XXX,XX @@ CONFIG_CHEETAH=y | ||
24 | CONFIG_SX1=y | ||
25 | CONFIG_NSERIES=y | ||
26 | CONFIG_STELLARIS=y | ||
27 | +CONFIG_STM32VLDISCOVERY=y | ||
28 | CONFIG_REALVIEW=y | ||
29 | CONFIG_VERSATILE=y | ||
30 | CONFIG_VEXPRESS=y | ||
31 | diff --git a/hw/arm/stm32vldiscovery.c b/hw/arm/stm32vldiscovery.c | ||
15 | new file mode 100644 | 32 | new file mode 100644 |
16 | index XXXXXXX..XXXXXXX | 33 | index XXXXXXX..XXXXXXX |
17 | --- /dev/null | 34 | --- /dev/null |
18 | +++ b/include/hw/dma/pl080.h | 35 | +++ b/hw/arm/stm32vldiscovery.c |
19 | @@ -XXX,XX +XXX,XX @@ | 36 | @@ -XXX,XX +XXX,XX @@ |
20 | +/* | 37 | +/* |
21 | + * ARM PrimeCell PL080/PL081 DMA controller | 38 | + * ST STM32VLDISCOVERY machine |
22 | + * | 39 | + * |
23 | + * Copyright (c) 2006 CodeSourcery. | 40 | + * Copyright (c) 2021 Alexandre Iooss <erdnaxe@crans.org> |
24 | + * Copyright (c) 2018 Linaro Limited | 41 | + * Copyright (c) 2014 Alistair Francis <alistair@alistair23.me> |
25 | + * Written by Paul Brook, Peter Maydell | ||
26 | + * | 42 | + * |
27 | + * This program is free software; you can redistribute it and/or modify | 43 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
28 | + * it under the terms of the GNU General Public License version 2 or | 44 | + * of this software and associated documentation files (the "Software"), to deal |
29 | + * (at your option) any later version. | 45 | + * in the Software without restriction, including without limitation the rights |
46 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
47 | + * copies of the Software, and to permit persons to whom the Software is | ||
48 | + * furnished to do so, subject to the following conditions: | ||
49 | + * | ||
50 | + * The above copyright notice and this permission notice shall be included in | ||
51 | + * all copies or substantial portions of the Software. | ||
52 | + * | ||
53 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
54 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
55 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
56 | + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
57 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
58 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
59 | + * THE SOFTWARE. | ||
30 | + */ | 60 | + */ |
31 | + | 61 | + |
32 | +/* This is a model of the Arm PrimeCell PL080/PL081 DMA controller: | 62 | +#include "qemu/osdep.h" |
33 | + * The PL080 TRM is: | 63 | +#include "qapi/error.h" |
34 | + * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0196g/DDI0196.pdf | 64 | +#include "hw/boards.h" |
35 | + * and the PL081 TRM is: | 65 | +#include "hw/qdev-properties.h" |
36 | + * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0218e/DDI0218.pdf | 66 | +#include "qemu/error-report.h" |
37 | + * | 67 | +#include "hw/arm/stm32f100_soc.h" |
38 | + * QEMU interface: | 68 | +#include "hw/arm/boot.h" |
39 | + * + sysbus IRQ: DMACINTR combined interrupt line | ||
40 | + * + sysbus MMIO region 0: MemoryRegion for the device's registers | ||
41 | + */ | ||
42 | + | 69 | + |
43 | +#ifndef HW_DMA_PL080_H | 70 | +/* stm32vldiscovery implementation is derived from netduinoplus2 */ |
44 | +#define HW_DMA_PL080_H | ||
45 | + | 71 | + |
46 | +#include "hw/sysbus.h" | 72 | +/* Main SYSCLK frequency in Hz (24MHz) */ |
73 | +#define SYSCLK_FRQ 24000000ULL | ||
47 | + | 74 | + |
48 | +#define PL080_MAX_CHANNELS 8 | 75 | +static void stm32vldiscovery_init(MachineState *machine) |
76 | +{ | ||
77 | + DeviceState *dev; | ||
49 | + | 78 | + |
50 | +typedef struct { | 79 | + /* |
51 | + uint32_t src; | 80 | + * TODO: ideally we would model the SoC RCC and let it handle |
52 | + uint32_t dest; | 81 | + * system_clock_scale, including its ability to define different |
53 | + uint32_t lli; | 82 | + * possible SYSCLK sources. |
54 | + uint32_t ctrl; | 83 | + */ |
55 | + uint32_t conf; | 84 | + system_clock_scale = NANOSECONDS_PER_SECOND / SYSCLK_FRQ; |
56 | +} pl080_channel; | ||
57 | + | 85 | + |
58 | +#define TYPE_PL080 "pl080" | 86 | + dev = qdev_new(TYPE_STM32F100_SOC); |
59 | +#define TYPE_PL081 "pl081" | 87 | + qdev_prop_set_string(dev, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m3")); |
60 | +#define PL080(obj) OBJECT_CHECK(PL080State, (obj), TYPE_PL080) | 88 | + sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
61 | + | 89 | + |
62 | +typedef struct PL080State { | 90 | + armv7m_load_kernel(ARM_CPU(first_cpu), |
63 | + SysBusDevice parent_obj; | 91 | + machine->kernel_filename, |
92 | + FLASH_SIZE); | ||
93 | +} | ||
64 | + | 94 | + |
65 | + MemoryRegion iomem; | 95 | +static void stm32vldiscovery_machine_init(MachineClass *mc) |
66 | + uint8_t tc_int; | 96 | +{ |
67 | + uint8_t tc_mask; | 97 | + mc->desc = "ST STM32VLDISCOVERY (Cortex-M3)"; |
68 | + uint8_t err_int; | 98 | + mc->init = stm32vldiscovery_init; |
69 | + uint8_t err_mask; | 99 | +} |
70 | + uint32_t conf; | ||
71 | + uint32_t sync; | ||
72 | + uint32_t req_single; | ||
73 | + uint32_t req_burst; | ||
74 | + pl080_channel chan[PL080_MAX_CHANNELS]; | ||
75 | + int nchannels; | ||
76 | + /* Flag to avoid recursive DMA invocations. */ | ||
77 | + int running; | ||
78 | + qemu_irq irq; | ||
79 | +} PL080State; | ||
80 | + | 100 | + |
81 | +#endif | 101 | +DEFINE_MACHINE("stm32vldiscovery", stm32vldiscovery_machine_init) |
82 | diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c | 102 | + |
83 | index XXXXXXX..XXXXXXX 100644 | ||
84 | --- a/hw/dma/pl080.c | ||
85 | +++ b/hw/dma/pl080.c | ||
86 | @@ -XXX,XX +XXX,XX @@ | ||
87 | #include "hw/sysbus.h" | ||
88 | #include "exec/address-spaces.h" | ||
89 | #include "qemu/log.h" | ||
90 | +#include "hw/dma/pl080.h" | ||
91 | |||
92 | -#define PL080_MAX_CHANNELS 8 | ||
93 | #define PL080_CONF_E 0x1 | ||
94 | #define PL080_CONF_M1 0x2 | ||
95 | #define PL080_CONF_M2 0x4 | ||
96 | @@ -XXX,XX +XXX,XX @@ | ||
97 | #define PL080_CCTRL_D 0x02000000 | ||
98 | #define PL080_CCTRL_S 0x01000000 | ||
99 | |||
100 | -typedef struct { | ||
101 | - uint32_t src; | ||
102 | - uint32_t dest; | ||
103 | - uint32_t lli; | ||
104 | - uint32_t ctrl; | ||
105 | - uint32_t conf; | ||
106 | -} pl080_channel; | ||
107 | - | ||
108 | -#define TYPE_PL080 "pl080" | ||
109 | -#define PL080(obj) OBJECT_CHECK(PL080State, (obj), TYPE_PL080) | ||
110 | - | ||
111 | -typedef struct PL080State { | ||
112 | - SysBusDevice parent_obj; | ||
113 | - | ||
114 | - MemoryRegion iomem; | ||
115 | - uint8_t tc_int; | ||
116 | - uint8_t tc_mask; | ||
117 | - uint8_t err_int; | ||
118 | - uint8_t err_mask; | ||
119 | - uint32_t conf; | ||
120 | - uint32_t sync; | ||
121 | - uint32_t req_single; | ||
122 | - uint32_t req_burst; | ||
123 | - pl080_channel chan[PL080_MAX_CHANNELS]; | ||
124 | - int nchannels; | ||
125 | - /* Flag to avoid recursive DMA invocations. */ | ||
126 | - int running; | ||
127 | - qemu_irq irq; | ||
128 | -} PL080State; | ||
129 | - | ||
130 | static const VMStateDescription vmstate_pl080_channel = { | ||
131 | .name = "pl080_channel", | ||
132 | .version_id = 1, | ||
133 | @@ -XXX,XX +XXX,XX @@ static const TypeInfo pl080_info = { | ||
134 | }; | ||
135 | |||
136 | static const TypeInfo pl081_info = { | ||
137 | - .name = "pl081", | ||
138 | + .name = TYPE_PL081, | ||
139 | .parent = TYPE_PL080, | ||
140 | .instance_init = pl081_init, | ||
141 | }; | ||
142 | diff --git a/MAINTAINERS b/MAINTAINERS | 103 | diff --git a/MAINTAINERS b/MAINTAINERS |
143 | index XXXXXXX..XXXXXXX 100644 | 104 | index XXXXXXX..XXXXXXX 100644 |
144 | --- a/MAINTAINERS | 105 | --- a/MAINTAINERS |
145 | +++ b/MAINTAINERS | 106 | +++ b/MAINTAINERS |
146 | @@ -XXX,XX +XXX,XX @@ F: hw/char/pl011.c | 107 | @@ -XXX,XX +XXX,XX @@ F: hw/*/stellaris* |
147 | F: include/hw/char/pl011.h | 108 | F: include/hw/input/gamepad.h |
148 | F: hw/display/pl110* | 109 | F: docs/system/arm/stellaris.rst |
149 | F: hw/dma/pl080.c | 110 | |
150 | +F: include/hw/dma/pl080.h | 111 | +STM32VLDISCOVERY |
151 | F: hw/dma/pl330.c | 112 | +M: Alexandre Iooss <erdnaxe@crans.org> |
152 | F: hw/gpio/pl061.c | 113 | +L: qemu-arm@nongnu.org |
153 | F: hw/input/pl050.c | 114 | +S: Maintained |
115 | +F: hw/arm/stm32vldiscovery.c | ||
116 | + | ||
117 | Versatile Express | ||
118 | M: Peter Maydell <peter.maydell@linaro.org> | ||
119 | L: qemu-arm@nongnu.org | ||
120 | diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig | ||
121 | index XXXXXXX..XXXXXXX 100644 | ||
122 | --- a/hw/arm/Kconfig | ||
123 | +++ b/hw/arm/Kconfig | ||
124 | @@ -XXX,XX +XXX,XX @@ config STELLARIS | ||
125 | select STELLARIS_ENET # ethernet | ||
126 | select UNIMP | ||
127 | |||
128 | +config STM32VLDISCOVERY | ||
129 | + bool | ||
130 | + select STM32F100_SOC | ||
131 | + | ||
132 | config STRONGARM | ||
133 | bool | ||
134 | select PXA2XX | ||
135 | diff --git a/hw/arm/meson.build b/hw/arm/meson.build | ||
136 | index XXXXXXX..XXXXXXX 100644 | ||
137 | --- a/hw/arm/meson.build | ||
138 | +++ b/hw/arm/meson.build | ||
139 | @@ -XXX,XX +XXX,XX @@ arm_ss.add(when: 'CONFIG_Z2', if_true: files('z2.c')) | ||
140 | arm_ss.add(when: 'CONFIG_REALVIEW', if_true: files('realview.c')) | ||
141 | arm_ss.add(when: 'CONFIG_SBSA_REF', if_true: files('sbsa-ref.c')) | ||
142 | arm_ss.add(when: 'CONFIG_STELLARIS', if_true: files('stellaris.c')) | ||
143 | +arm_ss.add(when: 'CONFIG_STM32VLDISCOVERY', if_true: files('stm32vldiscovery.c')) | ||
144 | arm_ss.add(when: 'CONFIG_COLLIE', if_true: files('collie.c')) | ||
145 | arm_ss.add(when: 'CONFIG_VERSATILE', if_true: files('versatilepb.c')) | ||
146 | arm_ss.add(when: 'CONFIG_VEXPRESS', if_true: files('vexpress.c')) | ||
154 | -- | 147 | -- |
155 | 2.18.0 | 148 | 2.20.1 |
156 | 149 | ||
157 | 150 | diff view generated by jsdifflib |
1 | From: Hans-Erik Floryd <hans-erik.floryd@rt-labs.com> | 1 | From: Alexandre Iooss <erdnaxe@crans.org> |
---|---|---|---|
2 | 2 | ||
3 | Generate an interrupt if USR2_RDR and UCR4_DREN are both set. | 3 | This adds the target guide for Netduino 2, Netduino Plus 2 and STM32VLDISCOVERY. |
4 | 4 | ||
5 | Signed-off-by: Hans-Erik Floryd <hans-erik.floryd@rt-labs.com> | 5 | Signed-off-by: Alexandre Iooss <erdnaxe@crans.org> |
6 | Message-id: 1534341354-11956-1-git-send-email-hans-erik.floryd@rt-labs.com | 6 | Reviewed-by: Alistair Francis <alistair.francis@wdc.com> |
7 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> | 7 | Message-id: 20210617165647.2575955-4-erdnaxe@crans.org |
8 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 8 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
9 | --- | 9 | --- |
10 | include/hw/char/imx_serial.h | 1 + | 10 | docs/system/arm/stm32.rst | 66 ++++++++++++++++++++++++++++++++++++++ |
11 | hw/char/imx_serial.c | 3 ++- | 11 | docs/system/target-arm.rst | 1 + |
12 | 2 files changed, 3 insertions(+), 1 deletion(-) | 12 | MAINTAINERS | 1 + |
13 | 3 files changed, 68 insertions(+) | ||
14 | create mode 100644 docs/system/arm/stm32.rst | ||
13 | 15 | ||
14 | diff --git a/include/hw/char/imx_serial.h b/include/hw/char/imx_serial.h | 16 | diff --git a/docs/system/arm/stm32.rst b/docs/system/arm/stm32.rst |
17 | new file mode 100644 | ||
18 | index XXXXXXX..XXXXXXX | ||
19 | --- /dev/null | ||
20 | +++ b/docs/system/arm/stm32.rst | ||
21 | @@ -XXX,XX +XXX,XX @@ | ||
22 | +STMicroelectronics STM32 boards (``netduino2``, ``netduinoplus2``, ``stm32vldiscovery``) | ||
23 | +======================================================================================== | ||
24 | + | ||
25 | +The `STM32`_ chips are a family of 32-bit ARM-based microcontroller by | ||
26 | +STMicroelectronics. | ||
27 | + | ||
28 | +.. _STM32: https://www.st.com/en/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus.html | ||
29 | + | ||
30 | +The STM32F1 series is based on ARM Cortex-M3 core. The following machines are | ||
31 | +based on this chip : | ||
32 | + | ||
33 | +- ``stm32vldiscovery`` STM32VLDISCOVERY board with STM32F100RBT6 microcontroller | ||
34 | + | ||
35 | +The STM32F2 series is based on ARM Cortex-M3 core. The following machines are | ||
36 | +based on this chip : | ||
37 | + | ||
38 | +- ``netduino2`` Netduino 2 board with STM32F205RFT6 microcontroller | ||
39 | + | ||
40 | +The STM32F4 series is based on ARM Cortex-M4F core. This series is pin-to-pin | ||
41 | +compatible with STM32F2 series. The following machines are based on this chip : | ||
42 | + | ||
43 | +- ``netduinoplus2`` Netduino Plus 2 board with STM32F405RGT6 microcontroller | ||
44 | + | ||
45 | +There are many other STM32 series that are currently not supported by QEMU. | ||
46 | + | ||
47 | +Supported devices | ||
48 | +----------------- | ||
49 | + | ||
50 | + * ARM Cortex-M3, Cortex M4F | ||
51 | + * Analog to Digital Converter (ADC) | ||
52 | + * EXTI interrupt | ||
53 | + * Serial ports (USART) | ||
54 | + * SPI controller | ||
55 | + * System configuration (SYSCFG) | ||
56 | + * Timer controller (TIMER) | ||
57 | + | ||
58 | +Missing devices | ||
59 | +--------------- | ||
60 | + | ||
61 | + * Camera interface (DCMI) | ||
62 | + * Controller Area Network (CAN) | ||
63 | + * Cycle Redundancy Check (CRC) calculation unit | ||
64 | + * Digital to Analog Converter (DAC) | ||
65 | + * DMA controller | ||
66 | + * Ethernet controller | ||
67 | + * Flash Interface Unit | ||
68 | + * GPIO controller | ||
69 | + * I2C controller | ||
70 | + * Inter-Integrated Sound (I2S) controller | ||
71 | + * Power supply configuration (PWR) | ||
72 | + * Random Number Generator (RNG) | ||
73 | + * Real-Time Clock (RTC) controller | ||
74 | + * Reset and Clock Controller (RCC) | ||
75 | + * Secure Digital Input/Output (SDIO) interface | ||
76 | + * USB OTG | ||
77 | + * Watchdog controller (IWDG, WWDG) | ||
78 | + | ||
79 | +Boot options | ||
80 | +------------ | ||
81 | + | ||
82 | +The STM32 machines can be started using the ``-kernel`` option to load a | ||
83 | +firmware. Example: | ||
84 | + | ||
85 | +.. code-block:: bash | ||
86 | + | ||
87 | + $ qemu-system-arm -M stm32vldiscovery -kernel firmware.bin | ||
88 | diff --git a/docs/system/target-arm.rst b/docs/system/target-arm.rst | ||
15 | index XXXXXXX..XXXXXXX 100644 | 89 | index XXXXXXX..XXXXXXX 100644 |
16 | --- a/include/hw/char/imx_serial.h | 90 | --- a/docs/system/target-arm.rst |
17 | +++ b/include/hw/char/imx_serial.h | 91 | +++ b/docs/system/target-arm.rst |
18 | @@ -XXX,XX +XXX,XX @@ | 92 | @@ -XXX,XX +XXX,XX @@ undocumented; you can get a complete list by running |
19 | #define UCR2_RXEN (1<<1) /* Receiver enable */ | 93 | arm/collie |
20 | #define UCR2_SRST (1<<0) /* Reset complete */ | 94 | arm/sx1 |
21 | 95 | arm/stellaris | |
22 | +#define UCR4_DREN BIT(0) /* Receive Data Ready interrupt enable */ | 96 | + arm/stm32 |
23 | #define UCR4_TCEN BIT(3) /* TX complete interrupt enable */ | 97 | arm/virt |
24 | 98 | arm/xlnx-versal-virt | |
25 | #define UTS1_TXEMPTY (1<<6) | 99 | |
26 | diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c | 100 | diff --git a/MAINTAINERS b/MAINTAINERS |
27 | index XXXXXXX..XXXXXXX 100644 | 101 | index XXXXXXX..XXXXXXX 100644 |
28 | --- a/hw/char/imx_serial.c | 102 | --- a/MAINTAINERS |
29 | +++ b/hw/char/imx_serial.c | 103 | +++ b/MAINTAINERS |
30 | @@ -XXX,XX +XXX,XX @@ static void imx_update(IMXSerialState *s) | 104 | @@ -XXX,XX +XXX,XX @@ M: Alexandre Iooss <erdnaxe@crans.org> |
31 | mask = (s->ucr1 & UCR1_TXMPTYEN) ? USR2_TXFE : 0; | 105 | L: qemu-arm@nongnu.org |
32 | /* | 106 | S: Maintained |
33 | * TCEN and TXDC are both bit 3 | 107 | F: hw/arm/stm32vldiscovery.c |
34 | + * RDR and DREN are both bit 0 | 108 | +F: docs/system/arm/stm32.rst |
35 | */ | 109 | |
36 | - mask |= s->ucr4 & UCR4_TCEN; | 110 | Versatile Express |
37 | + mask |= s->ucr4 & (UCR4_TCEN | UCR4_DREN); | 111 | M: Peter Maydell <peter.maydell@linaro.org> |
38 | |||
39 | usr2 = s->usr2 & mask; | ||
40 | |||
41 | -- | 112 | -- |
42 | 2.18.0 | 113 | 2.20.1 |
43 | 114 | ||
44 | 115 | diff view generated by jsdifflib |
1 | From: Stefan Hajnoczi <stefanha@redhat.com> | 1 | From: Alexandre Iooss <erdnaxe@crans.org> |
---|---|---|---|
2 | 2 | ||
3 | The generic loader device supports the U-Boot and Intel HEX executable | 3 | New mini-kernel test for STM32VLDISCOVERY USART1. |
4 | formats in addition to the document raw and ELF formats. Reword the | ||
5 | documentation to include these formats and explain how various options | ||
6 | depend on the executable format. | ||
7 | 4 | ||
8 | Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> | 5 | Signed-off-by: Alexandre Iooss <erdnaxe@crans.org> |
9 | Reviewed-by: Alistair Francis <alistair.francis@wdc.com> | 6 | Acked-by: Thomas Huth <thuth@redhat.com> |
10 | Message-id: 20180816145554.9814-1-stefanha@redhat.com | 7 | Acked-by: Alistair Francis <alistair.francis@wdc.com> |
11 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> | 8 | Message-id: 20210617165647.2575955-5-erdnaxe@crans.org |
12 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 9 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
13 | --- | 10 | --- |
14 | docs/generic-loader.txt | 20 ++++++++++---------- | 11 | tests/qtest/boot-serial-test.c | 37 ++++++++++++++++++++++++++++++++++ |
15 | 1 file changed, 10 insertions(+), 10 deletions(-) | 12 | 1 file changed, 37 insertions(+) |
16 | 13 | ||
17 | diff --git a/docs/generic-loader.txt b/docs/generic-loader.txt | 14 | diff --git a/tests/qtest/boot-serial-test.c b/tests/qtest/boot-serial-test.c |
18 | index XXXXXXX..XXXXXXX 100644 | 15 | index XXXXXXX..XXXXXXX 100644 |
19 | --- a/docs/generic-loader.txt | 16 | --- a/tests/qtest/boot-serial-test.c |
20 | +++ b/docs/generic-loader.txt | 17 | +++ b/tests/qtest/boot-serial-test.c |
21 | @@ -XXX,XX +XXX,XX @@ An example of setting CPU 0's PC to 0x8000 is: | 18 | @@ -XXX,XX +XXX,XX @@ static const uint8_t kernel_nrf51[] = { |
22 | 19 | 0x1c, 0x25, 0x00, 0x40 /* 0x4000251c = UART TXD */ | |
23 | Loading Files | 20 | }; |
24 | ------------- | 21 | |
25 | -The loader device also allows files to be loaded into memory. It can load raw | 22 | +static const uint8_t kernel_stm32vldiscovery[] = { |
26 | -files and ELF executable files. Raw files are loaded verbatim. ELF executable | 23 | + 0x00, 0x00, 0x00, 0x00, /* Stack top address */ |
27 | -files are loaded by an ELF loader. The syntax is shown below: | 24 | + 0x1d, 0x00, 0x00, 0x00, /* Reset handler address */ |
28 | +The loader device also allows files to be loaded into memory. It can load ELF, | 25 | + 0x00, 0x00, 0x00, 0x00, /* NMI */ |
29 | +U-Boot, and Intel HEX executable formats as well as raw images. The syntax is | 26 | + 0x00, 0x00, 0x00, 0x00, /* Hard fault */ |
30 | +shown below: | 27 | + 0x00, 0x00, 0x00, 0x00, /* Memory management fault */ |
31 | 28 | + 0x00, 0x00, 0x00, 0x00, /* Bus fault */ | |
32 | -device loader,file=<file>[,addr=<addr>][,cpu-num=<cpu-num>][,force-raw=<raw>] | 29 | + 0x00, 0x00, 0x00, 0x00, /* Usage fault */ |
33 | 30 | + 0x0b, 0x4b, /* ldr r3, [pc, #44] Get RCC */ | |
34 | <file> - A file to be loaded into memory | 31 | + 0x44, 0xf2, 0x04, 0x02, /* movw r2, #16388 */ |
35 | - <addr> - The addr in memory that the file should be loaded. This is | 32 | + 0x1a, 0x60, /* str r2, [r3] */ |
36 | - ignored if you are using an ELF (unless force-raw is true). | 33 | + 0x0a, 0x4b, /* ldr r3, [pc, #40] Get GPIOA */ |
37 | - This is required if you aren't loading an ELF. | 34 | + 0x1a, 0x68, /* ldr r2, [r3] */ |
38 | + <addr> - The memory address where the file should be loaded. This is | 35 | + 0x22, 0xf0, 0xf0, 0x02, /* bic r2, r2, #240 */ |
39 | + required for raw images and ignored for non-raw files. | 36 | + 0x1a, 0x60, /* str r2, [r3] */ |
40 | <cpu-num> - This specifies the CPU that should be used. This is an | 37 | + 0x1a, 0x68, /* ldr r2, [r3] */ |
41 | optional argument and will cause the CPU's PC to be set to | 38 | + 0x42, 0xf0, 0xb0, 0x02, /* orr r2, r2, #176 */ |
42 | - where the image is stored or in the case of an ELF file to | 39 | + 0x1a, 0x60, /* str r2, [r3] */ |
43 | - the value in the header. This option should only be used | 40 | + 0x07, 0x4b, /* ldr r3, [pc, #26] Get BAUD */ |
44 | - for the boot image. | 41 | + 0x45, 0x22, /* movs r2, #69 */ |
45 | + the memory address where the raw file is loaded or the entry | 42 | + 0x1a, 0x60, /* str r2, [r3] */ |
46 | + point specified in the executable format header. This option | 43 | + 0x06, 0x4b, /* ldr r3, [pc, #24] Get ENABLE */ |
47 | + should only be used for the boot image. | 44 | + 0x42, 0xf2, 0x08, 0x02, /* movw r2, #8200 */ |
48 | This will also cause the image to be written to the specified | 45 | + 0x1a, 0x60, /* str r2, [r3] */ |
49 | CPU's address space. If not specified, the default is CPU 0. | 46 | + 0x05, 0x4b, /* ldr r3, [pc, #20] Get TXD */ |
50 | <force-raw> - Setting force-raw=on forces the file to be treated as a raw | 47 | + 0x54, 0x22, /* movs r2, 'T' */ |
51 | - image. This can be used to load ELF files as if they were raw. | 48 | + 0x1a, 0x60, /* str r2, [r3] */ |
52 | + image. This can be used to load supported executable formats | 49 | + 0xfe, 0xe7, /* b . */ |
53 | + as if they were raw. | 50 | + 0x18, 0x10, 0x02, 0x40, /* 0x40021018 = RCC */ |
54 | 51 | + 0x04, 0x08, 0x01, 0x40, /* 0x40010804 = GPIOA */ | |
55 | All values are parsed using the standard QemuOps parsing. This allows the user | 52 | + 0x08, 0x38, 0x01, 0x40, /* 0x40013808 = USART1 BAUD */ |
56 | to specify any values in any format supported. By default the values | 53 | + 0x0c, 0x38, 0x01, 0x40, /* 0x4001380c = USART1 ENABLE */ |
54 | + 0x04, 0x38, 0x01, 0x40 /* 0x40013804 = USART1 TXD */ | ||
55 | +}; | ||
56 | + | ||
57 | typedef struct testdef { | ||
58 | const char *arch; /* Target architecture */ | ||
59 | const char *machine; /* Name of the machine */ | ||
60 | @@ -XXX,XX +XXX,XX @@ static testdef_t tests[] = { | ||
61 | { "aarch64", "virt", "-cpu max", "TT", sizeof(kernel_aarch64), | ||
62 | kernel_aarch64 }, | ||
63 | { "arm", "microbit", "", "T", sizeof(kernel_nrf51), kernel_nrf51 }, | ||
64 | + { "arm", "stm32vldiscovery", "", "T", | ||
65 | + sizeof(kernel_stm32vldiscovery), kernel_stm32vldiscovery }, | ||
66 | |||
67 | { NULL } | ||
68 | }; | ||
57 | -- | 69 | -- |
58 | 2.18.0 | 70 | 2.20.1 |
59 | 71 | ||
60 | 72 | diff view generated by jsdifflib |
1 | From: Jia He <hejianet@gmail.com> | 1 | From: Ricardo Koller <ricarkol@google.com> |
---|---|---|---|
2 | 2 | ||
3 | In scripts/arch-run.bash of kvm-unit-tests, it will check the qemu | 3 | icv_eoir_write() and icv_dir_write() ignore invalid virtual IRQ numbers |
4 | output log with: | 4 | (like LPIs). The issue is that these functions check against the number |
5 | if [ -z "$(echo "$errors" | grep -vi warning)" ]; then | 5 | of implemented IRQs (QEMU's default is num_irq=288) which can be lower |
6 | than the maximum virtual IRQ number (1020 - 1). The consequence is that | ||
7 | if a hypervisor creates an LR for an IRQ between 288 and 1020, then the | ||
8 | guest is unable to deactivate the resulting IRQ. Note that other | ||
9 | functions that deal with large IRQ numbers, like icv_iar_read, check | ||
10 | against 1020 and not against num_irq. | ||
6 | 11 | ||
7 | Thus without the warning prefix, all of the test fail. | 12 | Fix the checks by using GICV3_MAXIRQ (1020) instead of the number of |
13 | implemented IRQs. | ||
8 | 14 | ||
9 | Since it is not unrecoverable error in kvm_arm_its_reset for | 15 | Signed-off-by: Ricardo Koller <ricarkol@google.com> |
10 | current implementation, downgrading the report from error to | 16 | Message-id: 20210702233701.3369-1-ricarkol@google.com |
11 | warn makes sense. | ||
12 | |||
13 | Signed-off-by: Jia He <jia.he@hxt-semitech.com> | ||
14 | Message-id: 1531969910-32843-1-git-send-email-jia.he@hxt-semitech.com | ||
15 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> | 17 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> |
16 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 18 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
17 | --- | 19 | --- |
18 | hw/intc/arm_gicv3_its_kvm.c | 2 +- | 20 | hw/intc/arm_gicv3_cpuif.c | 4 ++-- |
19 | 1 file changed, 1 insertion(+), 1 deletion(-) | 21 | 1 file changed, 2 insertions(+), 2 deletions(-) |
20 | 22 | ||
21 | diff --git a/hw/intc/arm_gicv3_its_kvm.c b/hw/intc/arm_gicv3_its_kvm.c | 23 | diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c |
22 | index XXXXXXX..XXXXXXX 100644 | 24 | index XXXXXXX..XXXXXXX 100644 |
23 | --- a/hw/intc/arm_gicv3_its_kvm.c | 25 | --- a/hw/intc/arm_gicv3_cpuif.c |
24 | +++ b/hw/intc/arm_gicv3_its_kvm.c | 26 | +++ b/hw/intc/arm_gicv3_cpuif.c |
25 | @@ -XXX,XX +XXX,XX @@ static void kvm_arm_its_reset(DeviceState *dev) | 27 | @@ -XXX,XX +XXX,XX @@ static void icv_dir_write(CPUARMState *env, const ARMCPRegInfo *ri, |
28 | |||
29 | trace_gicv3_icv_dir_write(gicv3_redist_affid(cs), value); | ||
30 | |||
31 | - if (irq >= cs->gic->num_irq) { | ||
32 | + if (irq >= GICV3_MAXIRQ) { | ||
33 | /* Also catches special interrupt numbers and LPIs */ | ||
26 | return; | 34 | return; |
27 | } | 35 | } |
28 | 36 | @@ -XXX,XX +XXX,XX @@ static void icv_eoir_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
29 | - error_report("ITS KVM: full reset is not supported by the host kernel"); | 37 | trace_gicv3_icv_eoir_write(ri->crm == 8 ? 0 : 1, |
30 | + warn_report("ITS KVM: full reset is not supported by the host kernel"); | 38 | gicv3_redist_affid(cs), value); |
31 | 39 | ||
32 | if (!kvm_device_check_attr(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_ITS_REGS, | 40 | - if (irq >= cs->gic->num_irq) { |
33 | GITS_CTLR)) { | 41 | + if (irq >= GICV3_MAXIRQ) { |
42 | /* Also catches special interrupt numbers and LPIs */ | ||
43 | return; | ||
44 | } | ||
34 | -- | 45 | -- |
35 | 2.18.0 | 46 | 2.20.1 |
36 | 47 | ||
37 | 48 | diff view generated by jsdifflib |
1 | The MSR (banked) and MRS (banked) instructions allow accesses to ELR_Hyp | 1 | Convert the use of the DPRINTF debug macro in the PL061 model to |
---|---|---|---|
2 | from either Monitor or Hyp mode. Our translate time check | 2 | use tracepoints. |
3 | was overly strict and only permitted access from Monitor mode. | ||
4 | |||
5 | The runtime check we do in msr_mrs_banked_exc_checks() had the | ||
6 | correct code in it, but never got there because of the earlier | ||
7 | "currmode == tgtmode" check. Special case ELR_Hyp. | ||
8 | 3 | ||
9 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 4 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
10 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | 5 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> |
11 | Reviewed-by: Luc Michel <luc.michel@greensocs.com> | 6 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> |
12 | Message-id: 20180814124254.5229-9-peter.maydell@linaro.org | ||
13 | --- | 7 | --- |
14 | target/arm/op_helper.c | 22 +++++++++++----------- | 8 | hw/gpio/pl061.c | 27 +++++++++------------------ |
15 | target/arm/translate.c | 10 +++++++--- | 9 | hw/gpio/trace-events | 6 ++++++ |
16 | 2 files changed, 18 insertions(+), 14 deletions(-) | 10 | 2 files changed, 15 insertions(+), 18 deletions(-) |
17 | 11 | ||
18 | diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c | 12 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
19 | index XXXXXXX..XXXXXXX 100644 | 13 | index XXXXXXX..XXXXXXX 100644 |
20 | --- a/target/arm/op_helper.c | 14 | --- a/hw/gpio/pl061.c |
21 | +++ b/target/arm/op_helper.c | 15 | +++ b/hw/gpio/pl061.c |
22 | @@ -XXX,XX +XXX,XX @@ static void msr_mrs_banked_exc_checks(CPUARMState *env, uint32_t tgtmode, | 16 | @@ -XXX,XX +XXX,XX @@ |
23 | */ | 17 | #include "qemu/log.h" |
24 | int curmode = env->uncached_cpsr & CPSR_M; | 18 | #include "qemu/module.h" |
25 | 19 | #include "qom/object.h" | |
26 | + if (regno == 17) { | 20 | - |
27 | + /* ELR_Hyp: a special case because access from tgtmode is OK */ | 21 | -//#define DEBUG_PL061 1 |
28 | + if (curmode != ARM_CPU_MODE_HYP && curmode != ARM_CPU_MODE_MON) { | 22 | - |
29 | + goto undef; | 23 | -#ifdef DEBUG_PL061 |
30 | + } | 24 | -#define DPRINTF(fmt, ...) \ |
31 | + return; | 25 | -do { printf("pl061: " fmt , ## __VA_ARGS__); } while (0) |
32 | + } | 26 | -#define BADF(fmt, ...) \ |
33 | + | 27 | -do { fprintf(stderr, "pl061: error: " fmt , ## __VA_ARGS__); exit(1);} while (0) |
34 | if (curmode == tgtmode) { | 28 | -#else |
35 | goto undef; | 29 | -#define DPRINTF(fmt, ...) do {} while(0) |
36 | } | 30 | -#define BADF(fmt, ...) \ |
37 | @@ -XXX,XX +XXX,XX @@ static void msr_mrs_banked_exc_checks(CPUARMState *env, uint32_t tgtmode, | 31 | -do { fprintf(stderr, "pl061: error: " fmt , ## __VA_ARGS__);} while (0) |
38 | } | 32 | -#endif |
39 | 33 | +#include "trace.h" | |
40 | if (tgtmode == ARM_CPU_MODE_HYP) { | 34 | |
41 | - switch (regno) { | 35 | static const uint8_t pl061_id[12] = |
42 | - case 17: /* ELR_Hyp */ | 36 | { 0x00, 0x00, 0x00, 0x00, 0x61, 0x10, 0x04, 0x00, 0x0d, 0xf0, 0x05, 0xb1 }; |
43 | - if (curmode != ARM_CPU_MODE_HYP && curmode != ARM_CPU_MODE_MON) { | 37 | @@ -XXX,XX +XXX,XX @@ static void pl061_update(PL061State *s) |
44 | - goto undef; | 38 | uint8_t out; |
45 | - } | 39 | int i; |
46 | - break; | 40 | |
47 | - default: | 41 | - DPRINTF("dir = %d, data = %d\n", s->dir, s->data); |
48 | - if (curmode != ARM_CPU_MODE_MON) { | 42 | + trace_pl061_update(DEVICE(s)->canonical_path, s->dir, s->data); |
49 | - goto undef; | 43 | |
50 | - } | 44 | /* Outputs float high. */ |
51 | - break; | 45 | /* FIXME: This is board dependent. */ |
52 | + /* SPSR_Hyp, r13_hyp: accessible from Monitor mode only */ | 46 | @@ -XXX,XX +XXX,XX @@ static void pl061_update(PL061State *s) |
53 | + if (curmode != ARM_CPU_MODE_MON) { | 47 | for (i = 0; i < N_GPIOS; i++) { |
54 | + goto undef; | 48 | mask = 1 << i; |
49 | if (changed & mask) { | ||
50 | - DPRINTF("Set output %d = %d\n", i, (out & mask) != 0); | ||
51 | - qemu_set_irq(s->out[i], (out & mask) != 0); | ||
52 | + int level = (out & mask) != 0; | ||
53 | + trace_pl061_set_output(DEVICE(s)->canonical_path, i, level); | ||
54 | + qemu_set_irq(s->out[i], level); | ||
55 | } | ||
55 | } | 56 | } |
56 | } | 57 | } |
57 | 58 | @@ -XXX,XX +XXX,XX @@ static void pl061_update(PL061State *s) | |
58 | diff --git a/target/arm/translate.c b/target/arm/translate.c | 59 | for (i = 0; i < N_GPIOS; i++) { |
60 | mask = 1 << i; | ||
61 | if (changed & mask) { | ||
62 | - DPRINTF("Changed input %d = %d\n", i, (s->data & mask) != 0); | ||
63 | + trace_pl061_input_change(DEVICE(s)->canonical_path, i, | ||
64 | + (s->data & mask) != 0); | ||
65 | |||
66 | if (!(s->isense & mask)) { | ||
67 | /* Edge interrupt */ | ||
68 | @@ -XXX,XX +XXX,XX @@ static void pl061_update(PL061State *s) | ||
69 | /* Level interrupt */ | ||
70 | s->istate |= ~(s->data ^ s->iev) & s->isense; | ||
71 | |||
72 | - DPRINTF("istate = %02X\n", s->istate); | ||
73 | + trace_pl061_update_istate(DEVICE(s)->canonical_path, | ||
74 | + s->istate, s->im, (s->istate & s->im) != 0); | ||
75 | |||
76 | qemu_set_irq(s->irq, (s->istate & s->im) != 0); | ||
77 | } | ||
78 | diff --git a/hw/gpio/trace-events b/hw/gpio/trace-events | ||
59 | index XXXXXXX..XXXXXXX 100644 | 79 | index XXXXXXX..XXXXXXX 100644 |
60 | --- a/target/arm/translate.c | 80 | --- a/hw/gpio/trace-events |
61 | +++ b/target/arm/translate.c | 81 | +++ b/hw/gpio/trace-events |
62 | @@ -XXX,XX +XXX,XX @@ static bool msr_banked_access_decode(DisasContext *s, int r, int sysm, int rn, | 82 | @@ -XXX,XX +XXX,XX @@ nrf51_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x |
63 | } | 83 | nrf51_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64 |
64 | break; | 84 | nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64 |
65 | case ARM_CPU_MODE_HYP: | 85 | |
66 | - /* Note that we can forbid accesses from EL2 here because they | 86 | +# pl061.c |
67 | - * must be from Hyp mode itself | 87 | +pl061_update(const char *id, uint32_t dir, uint32_t data) "%s GPIODIR 0x%x GPIODATA 0x%x" |
68 | + /* | 88 | +pl061_set_output(const char *id, int gpio, int level) "%s setting output %d to %d" |
69 | + * SPSR_hyp and r13_hyp can only be accessed from Monitor mode | 89 | +pl061_input_change(const char *id, int gpio, int level) "%s input %d changed to %d" |
70 | + * (and so we can forbid accesses from EL2 or below). elr_hyp | 90 | +pl061_update_istate(const char *id, uint32_t istate, uint32_t im, int level) "%s GPIORIS 0x%x GPIOIE 0x%x interrupt level %d" |
71 | + * can be accessed also from Hyp mode, so forbid accesses from | 91 | + |
72 | + * EL0 or EL1. | 92 | # sifive_gpio.c |
73 | */ | 93 | sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64 |
74 | - if (!arm_dc_feature(s, ARM_FEATURE_EL2) || s->current_el < 3) { | 94 | sifive_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64 |
75 | + if (!arm_dc_feature(s, ARM_FEATURE_EL2) || s->current_el < 2 || | ||
76 | + (s->current_el < 3 && *regno != 17)) { | ||
77 | goto undef; | ||
78 | } | ||
79 | break; | ||
80 | -- | 95 | -- |
81 | 2.18.0 | 96 | 2.20.1 |
82 | 97 | ||
83 | 98 | diff view generated by jsdifflib |
1 | We now support direct execution from MMIO regions in the | 1 | Currently the pl061_read() and pl061_write() functions handle offsets |
---|---|---|---|
2 | core memory subsystem. This means that we don't need to | 2 | using a combination of three if() statements and a switch(). Clean |
3 | have device-specific support for it, and we can remove | 3 | this up to use just a switch, using case ranges. |
4 | the request_ptr handling from the Xilinx SPIPS device. | 4 | |
5 | (It was broken anyway due to race conditions, and disabled | 5 | This requires that instead of catching accesses to the luminary-only |
6 | by default.) | 6 | registers on a stock PL061 via a check on s->rsvd_start we use |
7 | 7 | an "is this luminary?" check in the cases for each luminary-only | |
8 | This device is the only in-tree user of this API. | 8 | register. |
9 | 9 | ||
10 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 10 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
11 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | 11 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> |
12 | Reviewed-by: Alistair Francis <alistair.francis@wdc.com> | ||
13 | Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com> | ||
14 | Message-id: 20180817114619.22354-2-peter.maydell@linaro.org | ||
15 | --- | 12 | --- |
16 | hw/ssi/xilinx_spips.c | 46 ------------------------------------------- | 13 | hw/gpio/pl061.c | 104 ++++++++++++++++++++++++++++++++++++------------ |
17 | 1 file changed, 46 deletions(-) | 14 | 1 file changed, 79 insertions(+), 25 deletions(-) |
18 | 15 | ||
19 | diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c | 16 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
20 | index XXXXXXX..XXXXXXX 100644 | 17 | index XXXXXXX..XXXXXXX 100644 |
21 | --- a/hw/ssi/xilinx_spips.c | 18 | --- a/hw/gpio/pl061.c |
22 | +++ b/hw/ssi/xilinx_spips.c | 19 | +++ b/hw/gpio/pl061.c |
23 | @@ -XXX,XX +XXX,XX @@ static const MemoryRegionOps spips_ops = { | 20 | @@ -XXX,XX +XXX,XX @@ struct PL061State { |
24 | 21 | qemu_irq irq; | |
25 | static void xilinx_qspips_invalidate_mmio_ptr(XilinxQSPIPS *q) | 22 | qemu_irq out[N_GPIOS]; |
23 | const unsigned char *id; | ||
24 | - uint32_t rsvd_start; /* reserved area: [rsvd_start, 0xfcc] */ | ||
25 | }; | ||
26 | |||
27 | static const VMStateDescription vmstate_pl061 = { | ||
28 | @@ -XXX,XX +XXX,XX @@ static uint64_t pl061_read(void *opaque, hwaddr offset, | ||
26 | { | 29 | { |
27 | - XilinxSPIPS *s = &q->parent_obj; | 30 | PL061State *s = (PL061State *)opaque; |
28 | - | 31 | |
29 | - if ((q->mmio_execution_enabled) && (q->lqspi_cached_addr != ~0ULL)) { | 32 | - if (offset < 0x400) { |
30 | - /* Invalidate the current mapped mmio */ | 33 | - return s->data & (offset >> 2); |
31 | - memory_region_invalidate_mmio_ptr(&s->mmlqspi, q->lqspi_cached_addr, | 34 | - } |
32 | - LQSPI_CACHE_SIZE); | 35 | - if (offset >= s->rsvd_start && offset <= 0xfcc) { |
33 | - } | 36 | - goto err_out; |
34 | - | 37 | - } |
35 | q->lqspi_cached_addr = ~0ULL; | 38 | - if (offset >= 0xfd0 && offset < 0x1000) { |
39 | - return s->id[(offset - 0xfd0) >> 2]; | ||
40 | - } | ||
41 | switch (offset) { | ||
42 | + case 0x0 ... 0x3ff: /* Data */ | ||
43 | + return s->data & (offset >> 2); | ||
44 | case 0x400: /* Direction */ | ||
45 | return s->dir; | ||
46 | case 0x404: /* Interrupt sense */ | ||
47 | @@ -XXX,XX +XXX,XX @@ static uint64_t pl061_read(void *opaque, hwaddr offset, | ||
48 | case 0x420: /* Alternate function select */ | ||
49 | return s->afsel; | ||
50 | case 0x500: /* 2mA drive */ | ||
51 | + if (s->id != pl061_id_luminary) { | ||
52 | + goto bad_offset; | ||
53 | + } | ||
54 | return s->dr2r; | ||
55 | case 0x504: /* 4mA drive */ | ||
56 | + if (s->id != pl061_id_luminary) { | ||
57 | + goto bad_offset; | ||
58 | + } | ||
59 | return s->dr4r; | ||
60 | case 0x508: /* 8mA drive */ | ||
61 | + if (s->id != pl061_id_luminary) { | ||
62 | + goto bad_offset; | ||
63 | + } | ||
64 | return s->dr8r; | ||
65 | case 0x50c: /* Open drain */ | ||
66 | + if (s->id != pl061_id_luminary) { | ||
67 | + goto bad_offset; | ||
68 | + } | ||
69 | return s->odr; | ||
70 | case 0x510: /* Pull-up */ | ||
71 | + if (s->id != pl061_id_luminary) { | ||
72 | + goto bad_offset; | ||
73 | + } | ||
74 | return s->pur; | ||
75 | case 0x514: /* Pull-down */ | ||
76 | + if (s->id != pl061_id_luminary) { | ||
77 | + goto bad_offset; | ||
78 | + } | ||
79 | return s->pdr; | ||
80 | case 0x518: /* Slew rate control */ | ||
81 | + if (s->id != pl061_id_luminary) { | ||
82 | + goto bad_offset; | ||
83 | + } | ||
84 | return s->slr; | ||
85 | case 0x51c: /* Digital enable */ | ||
86 | + if (s->id != pl061_id_luminary) { | ||
87 | + goto bad_offset; | ||
88 | + } | ||
89 | return s->den; | ||
90 | case 0x520: /* Lock */ | ||
91 | + if (s->id != pl061_id_luminary) { | ||
92 | + goto bad_offset; | ||
93 | + } | ||
94 | return s->locked; | ||
95 | case 0x524: /* Commit */ | ||
96 | + if (s->id != pl061_id_luminary) { | ||
97 | + goto bad_offset; | ||
98 | + } | ||
99 | return s->cr; | ||
100 | case 0x528: /* Analog mode select */ | ||
101 | + if (s->id != pl061_id_luminary) { | ||
102 | + goto bad_offset; | ||
103 | + } | ||
104 | return s->amsel; | ||
105 | + case 0xfd0 ... 0xfff: /* ID registers */ | ||
106 | + return s->id[(offset - 0xfd0) >> 2]; | ||
107 | default: | ||
108 | + bad_offset: | ||
109 | + qemu_log_mask(LOG_GUEST_ERROR, | ||
110 | + "pl061_read: Bad offset %x\n", (int)offset); | ||
111 | break; | ||
112 | } | ||
113 | -err_out: | ||
114 | - qemu_log_mask(LOG_GUEST_ERROR, | ||
115 | - "pl061_read: Bad offset %x\n", (int)offset); | ||
116 | return 0; | ||
36 | } | 117 | } |
37 | 118 | ||
38 | @@ -XXX,XX +XXX,XX @@ static void lqspi_load_cache(void *opaque, hwaddr addr) | 119 | @@ -XXX,XX +XXX,XX @@ static void pl061_write(void *opaque, hwaddr offset, |
120 | PL061State *s = (PL061State *)opaque; | ||
121 | uint8_t mask; | ||
122 | |||
123 | - if (offset < 0x400) { | ||
124 | + switch (offset) { | ||
125 | + case 0 ... 0x3ff: | ||
126 | mask = (offset >> 2) & s->dir; | ||
127 | s->data = (s->data & ~mask) | (value & mask); | ||
128 | pl061_update(s); | ||
129 | return; | ||
130 | - } | ||
131 | - if (offset >= s->rsvd_start) { | ||
132 | - goto err_out; | ||
133 | - } | ||
134 | - switch (offset) { | ||
135 | case 0x400: /* Direction */ | ||
136 | s->dir = value & 0xff; | ||
137 | break; | ||
138 | @@ -XXX,XX +XXX,XX @@ static void pl061_write(void *opaque, hwaddr offset, | ||
139 | s->afsel = (s->afsel & ~mask) | (value & mask); | ||
140 | break; | ||
141 | case 0x500: /* 2mA drive */ | ||
142 | + if (s->id != pl061_id_luminary) { | ||
143 | + goto bad_offset; | ||
144 | + } | ||
145 | s->dr2r = value & 0xff; | ||
146 | break; | ||
147 | case 0x504: /* 4mA drive */ | ||
148 | + if (s->id != pl061_id_luminary) { | ||
149 | + goto bad_offset; | ||
150 | + } | ||
151 | s->dr4r = value & 0xff; | ||
152 | break; | ||
153 | case 0x508: /* 8mA drive */ | ||
154 | + if (s->id != pl061_id_luminary) { | ||
155 | + goto bad_offset; | ||
156 | + } | ||
157 | s->dr8r = value & 0xff; | ||
158 | break; | ||
159 | case 0x50c: /* Open drain */ | ||
160 | + if (s->id != pl061_id_luminary) { | ||
161 | + goto bad_offset; | ||
162 | + } | ||
163 | s->odr = value & 0xff; | ||
164 | break; | ||
165 | case 0x510: /* Pull-up */ | ||
166 | + if (s->id != pl061_id_luminary) { | ||
167 | + goto bad_offset; | ||
168 | + } | ||
169 | s->pur = value & 0xff; | ||
170 | break; | ||
171 | case 0x514: /* Pull-down */ | ||
172 | + if (s->id != pl061_id_luminary) { | ||
173 | + goto bad_offset; | ||
174 | + } | ||
175 | s->pdr = value & 0xff; | ||
176 | break; | ||
177 | case 0x518: /* Slew rate control */ | ||
178 | + if (s->id != pl061_id_luminary) { | ||
179 | + goto bad_offset; | ||
180 | + } | ||
181 | s->slr = value & 0xff; | ||
182 | break; | ||
183 | case 0x51c: /* Digital enable */ | ||
184 | + if (s->id != pl061_id_luminary) { | ||
185 | + goto bad_offset; | ||
186 | + } | ||
187 | s->den = value & 0xff; | ||
188 | break; | ||
189 | case 0x520: /* Lock */ | ||
190 | + if (s->id != pl061_id_luminary) { | ||
191 | + goto bad_offset; | ||
192 | + } | ||
193 | s->locked = (value != 0xacce551); | ||
194 | break; | ||
195 | case 0x524: /* Commit */ | ||
196 | + if (s->id != pl061_id_luminary) { | ||
197 | + goto bad_offset; | ||
198 | + } | ||
199 | if (!s->locked) | ||
200 | s->cr = value & 0xff; | ||
201 | break; | ||
202 | case 0x528: | ||
203 | + if (s->id != pl061_id_luminary) { | ||
204 | + goto bad_offset; | ||
205 | + } | ||
206 | s->amsel = value & 0xff; | ||
207 | break; | ||
208 | default: | ||
209 | - goto err_out; | ||
210 | + bad_offset: | ||
211 | + qemu_log_mask(LOG_GUEST_ERROR, | ||
212 | + "pl061_write: Bad offset %x\n", (int)offset); | ||
213 | + return; | ||
39 | } | 214 | } |
215 | pl061_update(s); | ||
216 | return; | ||
217 | -err_out: | ||
218 | - qemu_log_mask(LOG_GUEST_ERROR, | ||
219 | - "pl061_write: Bad offset %x\n", (int)offset); | ||
40 | } | 220 | } |
41 | 221 | ||
42 | -static void *lqspi_request_mmio_ptr(void *opaque, hwaddr addr, unsigned *size, | 222 | static void pl061_reset(DeviceState *dev) |
43 | - unsigned *offset) | 223 | @@ -XXX,XX +XXX,XX @@ static void pl061_luminary_init(Object *obj) |
44 | -{ | 224 | PL061State *s = PL061(obj); |
45 | - XilinxQSPIPS *q = opaque; | 225 | |
46 | - hwaddr offset_within_the_region; | 226 | s->id = pl061_id_luminary; |
47 | - | 227 | - s->rsvd_start = 0x52c; |
48 | - if (!q->mmio_execution_enabled) { | ||
49 | - return NULL; | ||
50 | - } | ||
51 | - | ||
52 | - offset_within_the_region = addr & ~(LQSPI_CACHE_SIZE - 1); | ||
53 | - lqspi_load_cache(opaque, offset_within_the_region); | ||
54 | - *size = LQSPI_CACHE_SIZE; | ||
55 | - *offset = offset_within_the_region; | ||
56 | - return q->lqspi_buf; | ||
57 | -} | ||
58 | - | ||
59 | static uint64_t | ||
60 | lqspi_read(void *opaque, hwaddr addr, unsigned int size) | ||
61 | { | ||
62 | @@ -XXX,XX +XXX,XX @@ lqspi_read(void *opaque, hwaddr addr, unsigned int size) | ||
63 | |||
64 | static const MemoryRegionOps lqspi_ops = { | ||
65 | .read = lqspi_read, | ||
66 | - .request_ptr = lqspi_request_mmio_ptr, | ||
67 | .endianness = DEVICE_NATIVE_ENDIAN, | ||
68 | .valid = { | ||
69 | .min_access_size = 1, | ||
70 | @@ -XXX,XX +XXX,XX @@ static void xilinx_qspips_realize(DeviceState *dev, Error **errp) | ||
71 | sysbus_init_mmio(sbd, &s->mmlqspi); | ||
72 | |||
73 | q->lqspi_cached_addr = ~0ULL; | ||
74 | - | ||
75 | - /* mmio_execution breaks migration better aborting than having strange | ||
76 | - * bugs. | ||
77 | - */ | ||
78 | - if (q->mmio_execution_enabled) { | ||
79 | - error_setg(&q->migration_blocker, | ||
80 | - "enabling mmio_execution breaks migration"); | ||
81 | - migrate_add_blocker(q->migration_blocker, &error_fatal); | ||
82 | - } | ||
83 | } | 228 | } |
84 | 229 | ||
85 | static void xlnx_zynqmp_qspips_realize(DeviceState *dev, Error **errp) | 230 | static void pl061_init(Object *obj) |
86 | @@ -XXX,XX +XXX,XX @@ static Property xilinx_zynqmp_qspips_properties[] = { | 231 | @@ -XXX,XX +XXX,XX @@ static void pl061_init(Object *obj) |
87 | DEFINE_PROP_END_OF_LIST(), | 232 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); |
88 | }; | 233 | |
89 | 234 | s->id = pl061_id; | |
90 | -static Property xilinx_qspips_properties[] = { | 235 | - s->rsvd_start = 0x424; |
91 | - /* We had to turn this off for 2.10 as it is not compatible with migration. | 236 | |
92 | - * It can be enabled but will prevent the device to be migrated. | 237 | memory_region_init_io(&s->iomem, obj, &pl061_ops, s, "pl061", 0x1000); |
93 | - * This will go aways when a fix will be released. | 238 | sysbus_init_mmio(sbd, &s->iomem); |
94 | - */ | ||
95 | - DEFINE_PROP_BOOL("x-mmio-exec", XilinxQSPIPS, mmio_execution_enabled, | ||
96 | - false), | ||
97 | - DEFINE_PROP_END_OF_LIST(), | ||
98 | -}; | ||
99 | - | ||
100 | static Property xilinx_spips_properties[] = { | ||
101 | DEFINE_PROP_UINT8("num-busses", XilinxSPIPS, num_busses, 1), | ||
102 | DEFINE_PROP_UINT8("num-ss-bits", XilinxSPIPS, num_cs, 4), | ||
103 | @@ -XXX,XX +XXX,XX @@ static void xilinx_qspips_class_init(ObjectClass *klass, void * data) | ||
104 | XilinxSPIPSClass *xsc = XILINX_SPIPS_CLASS(klass); | ||
105 | |||
106 | dc->realize = xilinx_qspips_realize; | ||
107 | - dc->props = xilinx_qspips_properties; | ||
108 | xsc->reg_ops = &qspips_ops; | ||
109 | xsc->rx_fifo_size = RXFF_A_Q; | ||
110 | xsc->tx_fifo_size = TXFF_A_Q; | ||
111 | -- | 239 | -- |
112 | 2.18.0 | 240 | 2.20.1 |
113 | 241 | ||
114 | 242 | diff view generated by jsdifflib |
1 | The PL08x model currently will unconditionally call hw_error() | 1 | Add tracepoints for reads and writes to the PL061 registers. This requires |
---|---|---|---|
2 | if the DMA engine is enabled by the guest. This has been | 2 | restructuring pl061_read() to only return after the tracepoint, rather |
3 | present since the PL080 model was edded in 2006, and is | 3 | than having lots of early-returns. |
4 | presumably either unintentional debug code left enabled, | ||
5 | or a guard against untested DMA engine code being used. | ||
6 | |||
7 | Remove the hw_error(), since we now have a guest which | ||
8 | will actually try to use the DMA engine (the self-test | ||
9 | binary for the AN505 MPS2 FPGA image). | ||
10 | 4 | ||
11 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 5 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
12 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | 6 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> |
7 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> | ||
13 | --- | 8 | --- |
14 | hw/dma/pl080.c | 1 - | 9 | hw/gpio/pl061.c | 70 ++++++++++++++++++++++++++++++-------------- |
15 | 1 file changed, 1 deletion(-) | 10 | hw/gpio/trace-events | 2 ++ |
11 | 2 files changed, 50 insertions(+), 22 deletions(-) | ||
16 | 12 | ||
17 | diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c | 13 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
18 | index XXXXXXX..XXXXXXX 100644 | 14 | index XXXXXXX..XXXXXXX 100644 |
19 | --- a/hw/dma/pl080.c | 15 | --- a/hw/gpio/pl061.c |
20 | +++ b/hw/dma/pl080.c | 16 | +++ b/hw/gpio/pl061.c |
21 | @@ -XXX,XX +XXX,XX @@ static void pl080_run(PL080State *s) | 17 | @@ -XXX,XX +XXX,XX @@ static uint64_t pl061_read(void *opaque, hwaddr offset, |
22 | if ((s->conf & PL080_CONF_E) == 0) | 18 | unsigned size) |
23 | return; | 19 | { |
24 | 20 | PL061State *s = (PL061State *)opaque; | |
25 | -hw_error("DMA active\n"); | 21 | + uint64_t r = 0; |
26 | /* If we are already in the middle of a DMA operation then indicate that | 22 | |
27 | there may be new DMA requests and return immediately. */ | 23 | switch (offset) { |
28 | if (s->running) { | 24 | case 0x0 ... 0x3ff: /* Data */ |
25 | - return s->data & (offset >> 2); | ||
26 | + r = s->data & (offset >> 2); | ||
27 | + break; | ||
28 | case 0x400: /* Direction */ | ||
29 | - return s->dir; | ||
30 | + r = s->dir; | ||
31 | + break; | ||
32 | case 0x404: /* Interrupt sense */ | ||
33 | - return s->isense; | ||
34 | + r = s->isense; | ||
35 | + break; | ||
36 | case 0x408: /* Interrupt both edges */ | ||
37 | - return s->ibe; | ||
38 | + r = s->ibe; | ||
39 | + break; | ||
40 | case 0x40c: /* Interrupt event */ | ||
41 | - return s->iev; | ||
42 | + r = s->iev; | ||
43 | + break; | ||
44 | case 0x410: /* Interrupt mask */ | ||
45 | - return s->im; | ||
46 | + r = s->im; | ||
47 | + break; | ||
48 | case 0x414: /* Raw interrupt status */ | ||
49 | - return s->istate; | ||
50 | + r = s->istate; | ||
51 | + break; | ||
52 | case 0x418: /* Masked interrupt status */ | ||
53 | - return s->istate & s->im; | ||
54 | + r = s->istate & s->im; | ||
55 | + break; | ||
56 | case 0x420: /* Alternate function select */ | ||
57 | - return s->afsel; | ||
58 | + r = s->afsel; | ||
59 | + break; | ||
60 | case 0x500: /* 2mA drive */ | ||
61 | if (s->id != pl061_id_luminary) { | ||
62 | goto bad_offset; | ||
63 | } | ||
64 | - return s->dr2r; | ||
65 | + r = s->dr2r; | ||
66 | + break; | ||
67 | case 0x504: /* 4mA drive */ | ||
68 | if (s->id != pl061_id_luminary) { | ||
69 | goto bad_offset; | ||
70 | } | ||
71 | - return s->dr4r; | ||
72 | + r = s->dr4r; | ||
73 | + break; | ||
74 | case 0x508: /* 8mA drive */ | ||
75 | if (s->id != pl061_id_luminary) { | ||
76 | goto bad_offset; | ||
77 | } | ||
78 | - return s->dr8r; | ||
79 | + r = s->dr8r; | ||
80 | + break; | ||
81 | case 0x50c: /* Open drain */ | ||
82 | if (s->id != pl061_id_luminary) { | ||
83 | goto bad_offset; | ||
84 | } | ||
85 | - return s->odr; | ||
86 | + r = s->odr; | ||
87 | + break; | ||
88 | case 0x510: /* Pull-up */ | ||
89 | if (s->id != pl061_id_luminary) { | ||
90 | goto bad_offset; | ||
91 | } | ||
92 | - return s->pur; | ||
93 | + r = s->pur; | ||
94 | + break; | ||
95 | case 0x514: /* Pull-down */ | ||
96 | if (s->id != pl061_id_luminary) { | ||
97 | goto bad_offset; | ||
98 | } | ||
99 | - return s->pdr; | ||
100 | + r = s->pdr; | ||
101 | + break; | ||
102 | case 0x518: /* Slew rate control */ | ||
103 | if (s->id != pl061_id_luminary) { | ||
104 | goto bad_offset; | ||
105 | } | ||
106 | - return s->slr; | ||
107 | + r = s->slr; | ||
108 | + break; | ||
109 | case 0x51c: /* Digital enable */ | ||
110 | if (s->id != pl061_id_luminary) { | ||
111 | goto bad_offset; | ||
112 | } | ||
113 | - return s->den; | ||
114 | + r = s->den; | ||
115 | + break; | ||
116 | case 0x520: /* Lock */ | ||
117 | if (s->id != pl061_id_luminary) { | ||
118 | goto bad_offset; | ||
119 | } | ||
120 | - return s->locked; | ||
121 | + r = s->locked; | ||
122 | + break; | ||
123 | case 0x524: /* Commit */ | ||
124 | if (s->id != pl061_id_luminary) { | ||
125 | goto bad_offset; | ||
126 | } | ||
127 | - return s->cr; | ||
128 | + r = s->cr; | ||
129 | + break; | ||
130 | case 0x528: /* Analog mode select */ | ||
131 | if (s->id != pl061_id_luminary) { | ||
132 | goto bad_offset; | ||
133 | } | ||
134 | - return s->amsel; | ||
135 | + r = s->amsel; | ||
136 | + break; | ||
137 | case 0xfd0 ... 0xfff: /* ID registers */ | ||
138 | - return s->id[(offset - 0xfd0) >> 2]; | ||
139 | + r = s->id[(offset - 0xfd0) >> 2]; | ||
140 | + break; | ||
141 | default: | ||
142 | bad_offset: | ||
143 | qemu_log_mask(LOG_GUEST_ERROR, | ||
144 | "pl061_read: Bad offset %x\n", (int)offset); | ||
145 | break; | ||
146 | } | ||
147 | - return 0; | ||
148 | + | ||
149 | + trace_pl061_read(DEVICE(s)->canonical_path, offset, r); | ||
150 | + return r; | ||
151 | } | ||
152 | |||
153 | static void pl061_write(void *opaque, hwaddr offset, | ||
154 | @@ -XXX,XX +XXX,XX @@ static void pl061_write(void *opaque, hwaddr offset, | ||
155 | PL061State *s = (PL061State *)opaque; | ||
156 | uint8_t mask; | ||
157 | |||
158 | + trace_pl061_write(DEVICE(s)->canonical_path, offset, value); | ||
159 | + | ||
160 | switch (offset) { | ||
161 | case 0 ... 0x3ff: | ||
162 | mask = (offset >> 2) & s->dir; | ||
163 | diff --git a/hw/gpio/trace-events b/hw/gpio/trace-events | ||
164 | index XXXXXXX..XXXXXXX 100644 | ||
165 | --- a/hw/gpio/trace-events | ||
166 | +++ b/hw/gpio/trace-events | ||
167 | @@ -XXX,XX +XXX,XX @@ pl061_update(const char *id, uint32_t dir, uint32_t data) "%s GPIODIR 0x%x GPIOD | ||
168 | pl061_set_output(const char *id, int gpio, int level) "%s setting output %d to %d" | ||
169 | pl061_input_change(const char *id, int gpio, int level) "%s input %d changed to %d" | ||
170 | pl061_update_istate(const char *id, uint32_t istate, uint32_t im, int level) "%s GPIORIS 0x%x GPIOIE 0x%x interrupt level %d" | ||
171 | +pl061_read(const char *id, uint64_t offset, uint64_t r) "%s offset 0x%" PRIx64 " value 0x%" PRIx64 | ||
172 | +pl061_write(const char *id, uint64_t offset, uint64_t value) "%s offset 0x%" PRIx64 " value 0x%" PRIx64 | ||
173 | |||
174 | # sifive_gpio.c | ||
175 | sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64 | ||
29 | -- | 176 | -- |
30 | 2.18.0 | 177 | 2.20.1 |
31 | 178 | ||
32 | 179 | diff view generated by jsdifflib |
1 | The PL080 and PL081 have three outgoing interrupt lines: | 1 | Add a comment documenting the "QEMU interface" of this device: |
---|---|---|---|
2 | * DMACINTERR signals DMA errors | 2 | which MMIO regions, IRQ lines, GPIO lines, etc it exposes. |
3 | * DMACINTTC is the DMA count interrupt | ||
4 | * DMACINTR is a combined interrupt, the logical OR of the other two | ||
5 | |||
6 | We currently only implement DMACINTR, because that's all the | ||
7 | realview and versatile boards needed, but the instances of the | ||
8 | PL081 in the MPS2 firmware images use all three interrupt lines. | ||
9 | Implement the missing DMACINTERR and DMACINTTC. | ||
10 | 3 | ||
11 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 4 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
12 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | 5 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> |
13 | --- | 6 | --- |
14 | include/hw/dma/pl080.h | 6 +++++- | 7 | hw/gpio/pl061.c | 7 +++++++ |
15 | hw/dma/pl080.c | 13 ++++++++----- | 8 | 1 file changed, 7 insertions(+) |
16 | 2 files changed, 13 insertions(+), 6 deletions(-) | ||
17 | 9 | ||
18 | diff --git a/include/hw/dma/pl080.h b/include/hw/dma/pl080.h | 10 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
19 | index XXXXXXX..XXXXXXX 100644 | 11 | index XXXXXXX..XXXXXXX 100644 |
20 | --- a/include/hw/dma/pl080.h | 12 | --- a/hw/gpio/pl061.c |
21 | +++ b/include/hw/dma/pl080.h | 13 | +++ b/hw/gpio/pl061.c |
22 | @@ -XXX,XX +XXX,XX @@ | 14 | @@ -XXX,XX +XXX,XX @@ |
23 | * http://infocenter.arm.com/help/topic/com.arm.doc.ddi0218e/DDI0218.pdf | 15 | * Written by Paul Brook |
24 | * | 16 | * |
25 | * QEMU interface: | 17 | * This code is licensed under the GPL. |
26 | - * + sysbus IRQ: DMACINTR combined interrupt line | 18 | + * |
27 | + * + sysbus IRQ 0: DMACINTR combined interrupt line | 19 | + * QEMU interface: |
28 | + * + sysbus IRQ 1: DMACINTERR error interrupt request | 20 | + * + sysbus MMIO region 0: the device registers |
29 | + * + sysbus IRQ 2: DMACINTTC count interrupt request | 21 | + * + sysbus IRQ: the GPIOINTR interrupt line |
30 | * + sysbus MMIO region 0: MemoryRegion for the device's registers | 22 | + * + unnamed GPIO inputs 0..7: inputs to connect to the emulated GPIO lines |
23 | + * + unnamed GPIO outputs 0..7: the emulated GPIO lines, considered as | ||
24 | + * outputs | ||
31 | */ | 25 | */ |
32 | 26 | ||
33 | @@ -XXX,XX +XXX,XX @@ typedef struct PL080State { | 27 | #include "qemu/osdep.h" |
34 | /* Flag to avoid recursive DMA invocations. */ | ||
35 | int running; | ||
36 | qemu_irq irq; | ||
37 | + qemu_irq interr; | ||
38 | + qemu_irq inttc; | ||
39 | } PL080State; | ||
40 | |||
41 | #endif | ||
42 | diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c | ||
43 | index XXXXXXX..XXXXXXX 100644 | ||
44 | --- a/hw/dma/pl080.c | ||
45 | +++ b/hw/dma/pl080.c | ||
46 | @@ -XXX,XX +XXX,XX @@ static const unsigned char pl081_id[] = | ||
47 | |||
48 | static void pl080_update(PL080State *s) | ||
49 | { | ||
50 | - if ((s->tc_int & s->tc_mask) | ||
51 | - || (s->err_int & s->err_mask)) | ||
52 | - qemu_irq_raise(s->irq); | ||
53 | - else | ||
54 | - qemu_irq_lower(s->irq); | ||
55 | + bool tclevel = (s->tc_int & s->tc_mask); | ||
56 | + bool errlevel = (s->err_int & s->err_mask); | ||
57 | + | ||
58 | + qemu_set_irq(s->interr, errlevel); | ||
59 | + qemu_set_irq(s->inttc, tclevel); | ||
60 | + qemu_set_irq(s->irq, errlevel || tclevel); | ||
61 | } | ||
62 | |||
63 | static void pl080_run(PL080State *s) | ||
64 | @@ -XXX,XX +XXX,XX @@ static void pl080_init(Object *obj) | ||
65 | memory_region_init_io(&s->iomem, OBJECT(s), &pl080_ops, s, "pl080", 0x1000); | ||
66 | sysbus_init_mmio(sbd, &s->iomem); | ||
67 | sysbus_init_irq(sbd, &s->irq); | ||
68 | + sysbus_init_irq(sbd, &s->interr); | ||
69 | + sysbus_init_irq(sbd, &s->inttc); | ||
70 | s->nchannels = 8; | ||
71 | } | ||
72 | |||
73 | -- | 28 | -- |
74 | 2.18.0 | 29 | 2.20.1 |
75 | 30 | ||
76 | 31 | diff view generated by jsdifflib |
1 | The PL080/PL081 model is missing a reset function; implement it. | 1 | The Luminary variant of the PL061 has registers GPIOPUR and GPIOPDR |
---|---|---|---|
2 | which lets the guest configure whether the GPIO lines are pull-up, | ||
3 | pull-down, or truly floating. Instead of assuming all lines are pulled | ||
4 | high, honour the PUR and PDR registers. | ||
5 | |||
6 | For the plain PL061, continue to assume that lines have an external | ||
7 | pull-up resistor, as we did before. | ||
8 | |||
9 | The stellaris board actually relies on this behaviour -- the CD line | ||
10 | of the ssd0323 display device is connected to GPIO output C7, and it | ||
11 | is only because of a different bug which we're about to fix that we | ||
12 | weren't incorrectly driving this line high on reset and putting the | ||
13 | ssd0323 into data mode. | ||
2 | 14 | ||
3 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 15 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
4 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | 16 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> |
5 | --- | 17 | --- |
6 | hw/dma/pl080.c | 25 +++++++++++++++++++++++++ | 18 | hw/gpio/pl061.c | 58 +++++++++++++++++++++++++++++++++++++++++--- |
7 | 1 file changed, 25 insertions(+) | 19 | hw/gpio/trace-events | 2 +- |
20 | 2 files changed, 55 insertions(+), 5 deletions(-) | ||
8 | 21 | ||
9 | diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c | 22 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
10 | index XXXXXXX..XXXXXXX 100644 | 23 | index XXXXXXX..XXXXXXX 100644 |
11 | --- a/hw/dma/pl080.c | 24 | --- a/hw/gpio/pl061.c |
12 | +++ b/hw/dma/pl080.c | 25 | +++ b/hw/gpio/pl061.c |
13 | @@ -XXX,XX +XXX,XX @@ static const MemoryRegionOps pl080_ops = { | 26 | @@ -XXX,XX +XXX,XX @@ static const VMStateDescription vmstate_pl061 = { |
14 | .endianness = DEVICE_NATIVE_ENDIAN, | 27 | } |
15 | }; | 28 | }; |
16 | 29 | ||
17 | +static void pl080_reset(DeviceState *dev) | 30 | +static uint8_t pl061_floating(PL061State *s) |
18 | +{ | 31 | +{ |
19 | + PL080State *s = PL080(dev); | 32 | + /* |
20 | + int i; | 33 | + * Return mask of bits which correspond to pins configured as inputs |
34 | + * and which are floating (neither pulled up to 1 nor down to 0). | ||
35 | + */ | ||
36 | + uint8_t floating; | ||
21 | + | 37 | + |
22 | + s->tc_int = 0; | 38 | + if (s->id == pl061_id_luminary) { |
23 | + s->tc_mask = 0; | 39 | + /* |
24 | + s->err_int = 0; | 40 | + * If both PUR and PDR bits are clear, there is neither a pullup |
25 | + s->err_mask = 0; | 41 | + * nor a pulldown in place, and the output truly floats. |
26 | + s->conf = 0; | 42 | + */ |
27 | + s->sync = 0; | 43 | + floating = ~(s->pur | s->pdr); |
28 | + s->req_single = 0; | 44 | + } else { |
29 | + s->req_burst = 0; | 45 | + /* Assume outputs are pulled high. FIXME: this is board dependent. */ |
30 | + s->running = 0; | 46 | + floating = 0; |
31 | + | ||
32 | + for (i = 0; i < s->nchannels; i++) { | ||
33 | + s->chan[i].src = 0; | ||
34 | + s->chan[i].dest = 0; | ||
35 | + s->chan[i].lli = 0; | ||
36 | + s->chan[i].ctrl = 0; | ||
37 | + s->chan[i].conf = 0; | ||
38 | + } | 47 | + } |
48 | + return floating & ~s->dir; | ||
39 | +} | 49 | +} |
40 | + | 50 | + |
41 | static void pl080_init(Object *obj) | 51 | +static uint8_t pl061_pullups(PL061State *s) |
52 | +{ | ||
53 | + /* | ||
54 | + * Return mask of bits which correspond to pins configured as inputs | ||
55 | + * and which are pulled up to 1. | ||
56 | + */ | ||
57 | + uint8_t pullups; | ||
58 | + | ||
59 | + if (s->id == pl061_id_luminary) { | ||
60 | + /* | ||
61 | + * The Luminary variant of the PL061 has an extra registers which | ||
62 | + * the guest can use to configure whether lines should be pullup | ||
63 | + * or pulldown. | ||
64 | + */ | ||
65 | + pullups = s->pur; | ||
66 | + } else { | ||
67 | + /* Assume outputs are pulled high. FIXME: this is board dependent. */ | ||
68 | + pullups = 0xff; | ||
69 | + } | ||
70 | + return pullups & ~s->dir; | ||
71 | +} | ||
72 | + | ||
73 | static void pl061_update(PL061State *s) | ||
42 | { | 74 | { |
43 | SysBusDevice *sbd = SYS_BUS_DEVICE(obj); | 75 | uint8_t changed; |
44 | @@ -XXX,XX +XXX,XX @@ static void pl080_class_init(ObjectClass *oc, void *data) | 76 | uint8_t mask; |
45 | dc->vmsd = &vmstate_pl080; | 77 | uint8_t out; |
46 | dc->realize = pl080_realize; | 78 | int i; |
47 | dc->props = pl080_properties; | 79 | + uint8_t pullups = pl061_pullups(s); |
48 | + dc->reset = pl080_reset; | 80 | + uint8_t floating = pl061_floating(s); |
49 | } | 81 | |
50 | 82 | - trace_pl061_update(DEVICE(s)->canonical_path, s->dir, s->data); | |
51 | static const TypeInfo pl080_info = { | 83 | + trace_pl061_update(DEVICE(s)->canonical_path, s->dir, s->data, |
84 | + pullups, floating); | ||
85 | |||
86 | - /* Outputs float high. */ | ||
87 | - /* FIXME: This is board dependent. */ | ||
88 | - out = (s->data & s->dir) | ~s->dir; | ||
89 | + /* | ||
90 | + * Pins configured as output are driven from the data register; | ||
91 | + * otherwise if they're pulled up they're 1, and if they're floating | ||
92 | + * then we give them the same value they had previously, so we don't | ||
93 | + * report any change to the other end. | ||
94 | + */ | ||
95 | + out = (s->data & s->dir) | pullups | (s->old_out_data & floating); | ||
96 | changed = s->old_out_data ^ out; | ||
97 | if (changed) { | ||
98 | s->old_out_data = out; | ||
99 | diff --git a/hw/gpio/trace-events b/hw/gpio/trace-events | ||
100 | index XXXXXXX..XXXXXXX 100644 | ||
101 | --- a/hw/gpio/trace-events | ||
102 | +++ b/hw/gpio/trace-events | ||
103 | @@ -XXX,XX +XXX,XX @@ nrf51_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64 | ||
104 | nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64 | ||
105 | |||
106 | # pl061.c | ||
107 | -pl061_update(const char *id, uint32_t dir, uint32_t data) "%s GPIODIR 0x%x GPIODATA 0x%x" | ||
108 | +pl061_update(const char *id, uint32_t dir, uint32_t data, uint32_t pullups, uint32_t floating) "%s GPIODIR 0x%x GPIODATA 0x%x pullups 0x%x floating 0x%x" | ||
109 | pl061_set_output(const char *id, int gpio, int level) "%s setting output %d to %d" | ||
110 | pl061_input_change(const char *id, int gpio, int level) "%s input %d changed to %d" | ||
111 | pl061_update_istate(const char *id, uint32_t istate, uint32_t im, int level) "%s GPIORIS 0x%x GPIOIE 0x%x interrupt level %d" | ||
52 | -- | 112 | -- |
53 | 2.18.0 | 113 | 2.20.1 |
54 | 114 | ||
55 | 115 | diff view generated by jsdifflib |
1 | Currently our PL080/PL081 model uses a combination of the CPU's | 1 | The PL061 GPIO does not itself include pullup or pulldown resistors |
---|---|---|---|
2 | address space (via cpu_physical_memory_{read,write}()) and the | 2 | to set the value of a GPIO line treated as an output when it is |
3 | system address space for performing DMA accesses. | 3 | configured as an input (ie when the PL061 itself is not driving it). |
4 | In real hardware it is up to the board to add suitable pullups or | ||
5 | pulldowns. Currently our implementation hardwires this to "outputs | ||
6 | pulled high", which is correct for some boards (eg the realview ones: | ||
7 | see figure 3-29 in the "RealView Platform Baseboard for ARM926EJ-S | ||
8 | User Guide" DUI0224I), but wrong for others. | ||
4 | 9 | ||
5 | For the PL081s in the MPS FPGA images, their DMA accesses | 10 | In particular, the wiring in the 'virt' board and the gpio-pwr device |
6 | must go via Master Security Controllers. Switch the | 11 | assumes that wires should be pulled low, because otherwise the |
7 | PL080/PL081 model to take a MemoryRegion property which | 12 | pull-to-high will trigger a shutdown or reset action. (The only |
8 | defines its downstream for making DMA accesses. | 13 | reason this doesn't happen immediately on startup is due to another |
14 | bug in the PL061, where we don't assert the GPIOs to the correct | ||
15 | value on reset, but will do so as soon as the guest touches a | ||
16 | register and pl061_update() gets called.) | ||
9 | 17 | ||
10 | Since the PL08x are only used in two board models, we | 18 | Add properties to the pl061 so the board can configure whether it |
11 | make provision of the 'downstream' link mandatory and convert | 19 | wants GPIO lines to have pullup, pulldown, or neither. |
12 | both users at once, rather than having it be optional with | ||
13 | a default to the system address space. | ||
14 | 20 | ||
15 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 21 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
16 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | 22 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> |
17 | --- | 23 | --- |
18 | include/hw/dma/pl080.h | 5 +++++ | 24 | hw/gpio/pl061.c | 51 +++++++++++++++++++++++++++++++++++++++++++++---- |
19 | hw/arm/realview.c | 8 +++++++- | 25 | 1 file changed, 47 insertions(+), 4 deletions(-) |
20 | hw/arm/versatilepb.c | 9 ++++++++- | ||
21 | hw/dma/pl080.c | 35 +++++++++++++++++++++++++++++------ | ||
22 | 4 files changed, 49 insertions(+), 8 deletions(-) | ||
23 | 26 | ||
24 | diff --git a/include/hw/dma/pl080.h b/include/hw/dma/pl080.h | 27 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
25 | index XXXXXXX..XXXXXXX 100644 | 28 | index XXXXXXX..XXXXXXX 100644 |
26 | --- a/include/hw/dma/pl080.h | 29 | --- a/hw/gpio/pl061.c |
27 | +++ b/include/hw/dma/pl080.h | 30 | +++ b/hw/gpio/pl061.c |
28 | @@ -XXX,XX +XXX,XX @@ | 31 | @@ -XXX,XX +XXX,XX @@ |
29 | * + sysbus IRQ 1: DMACINTERR error interrupt request | 32 | * + unnamed GPIO inputs 0..7: inputs to connect to the emulated GPIO lines |
30 | * + sysbus IRQ 2: DMACINTTC count interrupt request | 33 | * + unnamed GPIO outputs 0..7: the emulated GPIO lines, considered as |
31 | * + sysbus MMIO region 0: MemoryRegion for the device's registers | 34 | * outputs |
32 | + * + QOM property "downstream": MemoryRegion defining where DMA | 35 | + * + QOM property "pullups": an integer defining whether non-floating lines |
33 | + * bus master transactions are made | 36 | + * configured as inputs should be pulled up to logical 1 (ie whether in |
37 | + * real hardware they have a pullup resistor on the line out of the PL061). | ||
38 | + * This should be an 8-bit value, where bit 0 is 1 if GPIO line 0 should | ||
39 | + * be pulled high, bit 1 configures line 1, and so on. The default is 0xff, | ||
40 | + * indicating that all GPIO lines are pulled up to logical 1. | ||
41 | + * + QOM property "pulldowns": an integer defining whether non-floating lines | ||
42 | + * configured as inputs should be pulled down to logical 0 (ie whether in | ||
43 | + * real hardware they have a pulldown resistor on the line out of the PL061). | ||
44 | + * This should be an 8-bit value, where bit 0 is 1 if GPIO line 0 should | ||
45 | + * be pulled low, bit 1 configures line 1, and so on. The default is 0x0. | ||
46 | + * It is an error to set a bit in both "pullups" and "pulldowns". If a bit | ||
47 | + * is 0 in both, then the line is considered to be floating, and it will | ||
48 | + * not have qemu_set_irq() called on it when it is configured as an input. | ||
34 | */ | 49 | */ |
35 | 50 | ||
36 | #ifndef HW_DMA_PL080_H | 51 | #include "qemu/osdep.h" |
37 | @@ -XXX,XX +XXX,XX @@ typedef struct PL080State { | 52 | #include "hw/irq.h" |
53 | #include "hw/sysbus.h" | ||
54 | +#include "hw/qdev-properties.h" | ||
55 | #include "migration/vmstate.h" | ||
56 | +#include "qapi/error.h" | ||
57 | #include "qemu/log.h" | ||
58 | #include "qemu/module.h" | ||
59 | #include "qom/object.h" | ||
60 | @@ -XXX,XX +XXX,XX @@ struct PL061State { | ||
38 | qemu_irq irq; | 61 | qemu_irq irq; |
39 | qemu_irq interr; | 62 | qemu_irq out[N_GPIOS]; |
40 | qemu_irq inttc; | 63 | const unsigned char *id; |
64 | + /* Properties, for non-Luminary PL061 */ | ||
65 | + uint32_t pullups; | ||
66 | + uint32_t pulldowns; | ||
67 | }; | ||
68 | |||
69 | static const VMStateDescription vmstate_pl061 = { | ||
70 | @@ -XXX,XX +XXX,XX @@ static uint8_t pl061_floating(PL061State *s) | ||
71 | */ | ||
72 | floating = ~(s->pur | s->pdr); | ||
73 | } else { | ||
74 | - /* Assume outputs are pulled high. FIXME: this is board dependent. */ | ||
75 | - floating = 0; | ||
76 | + floating = ~(s->pullups | s->pulldowns); | ||
77 | } | ||
78 | return floating & ~s->dir; | ||
79 | } | ||
80 | @@ -XXX,XX +XXX,XX @@ static uint8_t pl061_pullups(PL061State *s) | ||
81 | */ | ||
82 | pullups = s->pur; | ||
83 | } else { | ||
84 | - /* Assume outputs are pulled high. FIXME: this is board dependent. */ | ||
85 | - pullups = 0xff; | ||
86 | + pullups = s->pullups; | ||
87 | } | ||
88 | return pullups & ~s->dir; | ||
89 | } | ||
90 | @@ -XXX,XX +XXX,XX @@ static void pl061_init(Object *obj) | ||
91 | qdev_init_gpio_out(dev, s->out, N_GPIOS); | ||
92 | } | ||
93 | |||
94 | +static void pl061_realize(DeviceState *dev, Error **errp) | ||
95 | +{ | ||
96 | + PL061State *s = PL061(dev); | ||
41 | + | 97 | + |
42 | + MemoryRegion *downstream; | 98 | + if (s->pullups > 0xff) { |
43 | + AddressSpace downstream_as; | 99 | + error_setg(errp, "pullups property must be between 0 and 0xff"); |
44 | } PL080State; | ||
45 | |||
46 | #endif | ||
47 | diff --git a/hw/arm/realview.c b/hw/arm/realview.c | ||
48 | index XXXXXXX..XXXXXXX 100644 | ||
49 | --- a/hw/arm/realview.c | ||
50 | +++ b/hw/arm/realview.c | ||
51 | @@ -XXX,XX +XXX,XX @@ static void realview_init(MachineState *machine, | ||
52 | pl011_create(0x1000c000, pic[15], serial_hd(3)); | ||
53 | |||
54 | /* DMA controller is optional, apparently. */ | ||
55 | - sysbus_create_simple("pl081", 0x10030000, pic[24]); | ||
56 | + dev = qdev_create(NULL, "pl081"); | ||
57 | + object_property_set_link(OBJECT(dev), OBJECT(sysmem), "downstream", | ||
58 | + &error_fatal); | ||
59 | + qdev_init_nofail(dev); | ||
60 | + busdev = SYS_BUS_DEVICE(dev); | ||
61 | + sysbus_mmio_map(busdev, 0, 0x10030000); | ||
62 | + sysbus_connect_irq(busdev, 0, pic[24]); | ||
63 | |||
64 | sysbus_create_simple("sp804", 0x10011000, pic[4]); | ||
65 | sysbus_create_simple("sp804", 0x10012000, pic[5]); | ||
66 | diff --git a/hw/arm/versatilepb.c b/hw/arm/versatilepb.c | ||
67 | index XXXXXXX..XXXXXXX 100644 | ||
68 | --- a/hw/arm/versatilepb.c | ||
69 | +++ b/hw/arm/versatilepb.c | ||
70 | @@ -XXX,XX +XXX,XX @@ static void versatile_init(MachineState *machine, int board_id) | ||
71 | pl011_create(0x101f3000, pic[14], serial_hd(2)); | ||
72 | pl011_create(0x10009000, sic[6], serial_hd(3)); | ||
73 | |||
74 | - sysbus_create_simple("pl080", 0x10130000, pic[17]); | ||
75 | + dev = qdev_create(NULL, "pl080"); | ||
76 | + object_property_set_link(OBJECT(dev), OBJECT(sysmem), "downstream", | ||
77 | + &error_fatal); | ||
78 | + qdev_init_nofail(dev); | ||
79 | + busdev = SYS_BUS_DEVICE(dev); | ||
80 | + sysbus_mmio_map(busdev, 0, 0x10130000); | ||
81 | + sysbus_connect_irq(busdev, 0, pic[17]); | ||
82 | + | ||
83 | sysbus_create_simple("sp804", 0x101e2000, pic[4]); | ||
84 | sysbus_create_simple("sp804", 0x101e3000, pic[5]); | ||
85 | |||
86 | diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c | ||
87 | index XXXXXXX..XXXXXXX 100644 | ||
88 | --- a/hw/dma/pl080.c | ||
89 | +++ b/hw/dma/pl080.c | ||
90 | @@ -XXX,XX +XXX,XX @@ | ||
91 | #include "exec/address-spaces.h" | ||
92 | #include "qemu/log.h" | ||
93 | #include "hw/dma/pl080.h" | ||
94 | +#include "qapi/error.h" | ||
95 | |||
96 | #define PL080_CONF_E 0x1 | ||
97 | #define PL080_CONF_M1 0x2 | ||
98 | @@ -XXX,XX +XXX,XX @@ again: | ||
99 | swidth = 1 << ((ch->ctrl >> 18) & 7); | ||
100 | dwidth = 1 << ((ch->ctrl >> 21) & 7); | ||
101 | for (n = 0; n < dwidth; n+= swidth) { | ||
102 | - cpu_physical_memory_read(ch->src, buff + n, swidth); | ||
103 | + address_space_read(&s->downstream_as, ch->src, | ||
104 | + MEMTXATTRS_UNSPECIFIED, buff + n, swidth); | ||
105 | if (ch->ctrl & PL080_CCTRL_SI) | ||
106 | ch->src += swidth; | ||
107 | } | ||
108 | xsize = (dwidth < swidth) ? swidth : dwidth; | ||
109 | /* ??? This may pad the value incorrectly for dwidth < 32. */ | ||
110 | for (n = 0; n < xsize; n += dwidth) { | ||
111 | - cpu_physical_memory_write(ch->dest + n, buff + n, dwidth); | ||
112 | + address_space_write(&s->downstream_as, ch->dest + n, | ||
113 | + MEMTXATTRS_UNSPECIFIED, buff + n, dwidth); | ||
114 | if (ch->ctrl & PL080_CCTRL_DI) | ||
115 | ch->dest += swidth; | ||
116 | } | ||
117 | @@ -XXX,XX +XXX,XX @@ again: | ||
118 | if (size == 0) { | ||
119 | /* Transfer complete. */ | ||
120 | if (ch->lli) { | ||
121 | - ch->src = address_space_ldl_le(&address_space_memory, | ||
122 | + ch->src = address_space_ldl_le(&s->downstream_as, | ||
123 | ch->lli, | ||
124 | MEMTXATTRS_UNSPECIFIED, | ||
125 | NULL); | ||
126 | - ch->dest = address_space_ldl_le(&address_space_memory, | ||
127 | + ch->dest = address_space_ldl_le(&s->downstream_as, | ||
128 | ch->lli + 4, | ||
129 | MEMTXATTRS_UNSPECIFIED, | ||
130 | NULL); | ||
131 | - ch->ctrl = address_space_ldl_le(&address_space_memory, | ||
132 | + ch->ctrl = address_space_ldl_le(&s->downstream_as, | ||
133 | ch->lli + 12, | ||
134 | MEMTXATTRS_UNSPECIFIED, | ||
135 | NULL); | ||
136 | - ch->lli = address_space_ldl_le(&address_space_memory, | ||
137 | + ch->lli = address_space_ldl_le(&s->downstream_as, | ||
138 | ch->lli + 8, | ||
139 | MEMTXATTRS_UNSPECIFIED, | ||
140 | NULL); | ||
141 | @@ -XXX,XX +XXX,XX @@ static void pl080_init(Object *obj) | ||
142 | s->nchannels = 8; | ||
143 | } | ||
144 | |||
145 | +static void pl080_realize(DeviceState *dev, Error **errp) | ||
146 | +{ | ||
147 | + PL080State *s = PL080(dev); | ||
148 | + | ||
149 | + if (!s->downstream) { | ||
150 | + error_setg(errp, "PL080 'downstream' link not set"); | ||
151 | + return; | 100 | + return; |
152 | + } | 101 | + } |
153 | + | 102 | + if (s->pulldowns > 0xff) { |
154 | + address_space_init(&s->downstream_as, s->downstream, "pl080-downstream"); | 103 | + error_setg(errp, "pulldowns property must be between 0 and 0xff"); |
104 | + return; | ||
105 | + } | ||
106 | + if (s->pullups & s->pulldowns) { | ||
107 | + error_setg(errp, "no bit may be set both in pullups and pulldowns"); | ||
108 | + return; | ||
109 | + } | ||
155 | +} | 110 | +} |
156 | + | 111 | + |
157 | static void pl081_init(Object *obj) | 112 | +static Property pl061_props[] = { |
158 | { | 113 | + DEFINE_PROP_UINT32("pullups", PL061State, pullups, 0xff), |
159 | PL080State *s = PL080(obj); | 114 | + DEFINE_PROP_UINT32("pulldowns", PL061State, pulldowns, 0x0), |
160 | @@ -XXX,XX +XXX,XX @@ static void pl081_init(Object *obj) | 115 | + DEFINE_PROP_END_OF_LIST() |
161 | s->nchannels = 2; | ||
162 | } | ||
163 | |||
164 | +static Property pl080_properties[] = { | ||
165 | + DEFINE_PROP_LINK("downstream", PL080State, downstream, | ||
166 | + TYPE_MEMORY_REGION, MemoryRegion *), | ||
167 | + DEFINE_PROP_END_OF_LIST(), | ||
168 | +}; | 116 | +}; |
169 | + | 117 | + |
170 | static void pl080_class_init(ObjectClass *oc, void *data) | 118 | static void pl061_class_init(ObjectClass *klass, void *data) |
171 | { | 119 | { |
172 | DeviceClass *dc = DEVICE_CLASS(oc); | 120 | DeviceClass *dc = DEVICE_CLASS(klass); |
173 | 121 | ||
174 | dc->vmsd = &vmstate_pl080; | 122 | dc->vmsd = &vmstate_pl061; |
175 | + dc->realize = pl080_realize; | 123 | dc->reset = &pl061_reset; |
176 | + dc->props = pl080_properties; | 124 | + dc->realize = pl061_realize; |
125 | + device_class_set_props(dc, pl061_props); | ||
177 | } | 126 | } |
178 | 127 | ||
179 | static const TypeInfo pl080_info = { | 128 | static const TypeInfo pl061_info = { |
180 | -- | 129 | -- |
181 | 2.18.0 | 130 | 2.20.1 |
182 | 131 | ||
183 | 132 | diff view generated by jsdifflib |
1 | From: Andrew Jones <drjones@redhat.com> | 1 | For the virt board we have two PL061 devices -- one for NonSecure which |
---|---|---|---|
2 | is inputs only, and one for Secure which is outputs only. For the former, | ||
3 | we don't care whether its outputs are pulled low or high when the line is | ||
4 | configured as an input, because we don't connect them. For the latter, | ||
5 | we do care, because we wire the lines up to the gpio-pwr device, which | ||
6 | assumes that level 1 means "do the action" and 1 means "do nothing". | ||
7 | For consistency in case we add more outputs in future, configure both | ||
8 | PL061s to pull GPIO lines down to 0. | ||
2 | 9 | ||
3 | Signed-off-by: Andrew Jones <drjones@redhat.com> | 10 | Reported-by: Maxim Uvarov <maxim.uvarov@linaro.org> |
4 | Reviewed-by: Igor Mammedov <imammedo@redhat.com> | ||
5 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> | ||
6 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 11 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
12 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> | ||
7 | --- | 13 | --- |
8 | hw/arm/virt.c | 23 +++++++++++++++++------ | 14 | hw/arm/virt.c | 3 +++ |
9 | 1 file changed, 17 insertions(+), 6 deletions(-) | 15 | 1 file changed, 3 insertions(+) |
10 | 16 | ||
11 | diff --git a/hw/arm/virt.c b/hw/arm/virt.c | 17 | diff --git a/hw/arm/virt.c b/hw/arm/virt.c |
12 | index XXXXXXX..XXXXXXX 100644 | 18 | index XXXXXXX..XXXXXXX 100644 |
13 | --- a/hw/arm/virt.c | 19 | --- a/hw/arm/virt.c |
14 | +++ b/hw/arm/virt.c | 20 | +++ b/hw/arm/virt.c |
15 | @@ -XXX,XX +XXX,XX @@ static void machvirt_machine_init(void) | 21 | @@ -XXX,XX +XXX,XX @@ static void create_gpio_devices(const VirtMachineState *vms, int gpio, |
16 | } | 22 | MachineState *ms = MACHINE(vms); |
17 | type_init(machvirt_machine_init); | 23 | |
18 | 24 | pl061_dev = qdev_new("pl061"); | |
19 | -#define VIRT_COMPAT_2_12 \ | 25 | + /* Pull lines down to 0 if not driven by the PL061 */ |
20 | - HW_COMPAT_2_12 | 26 | + qdev_prop_set_uint32(pl061_dev, "pullups", 0); |
21 | - | 27 | + qdev_prop_set_uint32(pl061_dev, "pulldowns", 0xff); |
22 | -static void virt_3_0_instance_init(Object *obj) | 28 | s = SYS_BUS_DEVICE(pl061_dev); |
23 | +static void virt_3_1_instance_init(Object *obj) | 29 | sysbus_realize_and_unref(s, &error_fatal); |
24 | { | 30 | memory_region_add_subregion(mem, base, sysbus_mmio_get_region(s, 0)); |
25 | VirtMachineState *vms = VIRT_MACHINE(obj); | ||
26 | VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms); | ||
27 | @@ -XXX,XX +XXX,XX @@ static void virt_3_0_instance_init(Object *obj) | ||
28 | vms->irqmap = a15irqmap; | ||
29 | } | ||
30 | |||
31 | -static void virt_machine_3_0_options(MachineClass *mc) | ||
32 | +static void virt_machine_3_1_options(MachineClass *mc) | ||
33 | { | ||
34 | } | ||
35 | -DEFINE_VIRT_MACHINE_AS_LATEST(3, 0) | ||
36 | +DEFINE_VIRT_MACHINE_AS_LATEST(3, 1) | ||
37 | + | ||
38 | +static void virt_3_0_instance_init(Object *obj) | ||
39 | +{ | ||
40 | + virt_3_1_instance_init(obj); | ||
41 | +} | ||
42 | + | ||
43 | +static void virt_machine_3_0_options(MachineClass *mc) | ||
44 | +{ | ||
45 | + virt_machine_3_1_options(mc); | ||
46 | +} | ||
47 | +DEFINE_VIRT_MACHINE(3, 0) | ||
48 | + | ||
49 | +#define VIRT_COMPAT_2_12 \ | ||
50 | + HW_COMPAT_2_12 | ||
51 | |||
52 | static void virt_2_12_instance_init(Object *obj) | ||
53 | { | ||
54 | -- | 31 | -- |
55 | 2.18.0 | 32 | 2.20.1 |
56 | 33 | ||
57 | 34 | diff view generated by jsdifflib |
1 | Move the m48t59 device away from using old_mmio MemoryRegionOps | 1 | The PL061 comes out of reset with all its lines configured as input, |
---|---|---|---|
2 | accessors. | 2 | which means they might need to be pulled to 0 or 1 depending on the |
3 | 'pullups' and 'pulldowns' properties. Currently we do not assert | ||
4 | these lines on reset; they will only be set whenever the guest first | ||
5 | touches a register that triggers a call to pl061_update(). | ||
6 | |||
7 | Convert the device to three-phase reset so we have a place where we | ||
8 | can safely call qemu_set_irq() to set the floating lines to their | ||
9 | correct values. | ||
3 | 10 | ||
4 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 11 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
5 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | 12 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> |
6 | Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 13 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> |
7 | Message-id: 20180802180602.22047-1-peter.maydell@linaro.org | ||
8 | --- | 14 | --- |
9 | hw/timer/m48t59.c | 59 +++++++++-------------------------------------- | 15 | hw/gpio/pl061.c | 29 +++++++++++++++++++++++++---- |
10 | 1 file changed, 11 insertions(+), 48 deletions(-) | 16 | hw/gpio/trace-events | 1 + |
17 | 2 files changed, 26 insertions(+), 4 deletions(-) | ||
11 | 18 | ||
12 | diff --git a/hw/timer/m48t59.c b/hw/timer/m48t59.c | 19 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
13 | index XXXXXXX..XXXXXXX 100644 | 20 | index XXXXXXX..XXXXXXX 100644 |
14 | --- a/hw/timer/m48t59.c | 21 | --- a/hw/gpio/pl061.c |
15 | +++ b/hw/timer/m48t59.c | 22 | +++ b/hw/gpio/pl061.c |
16 | @@ -XXX,XX +XXX,XX @@ static uint64_t NVRAM_readb(void *opaque, hwaddr addr, unsigned size) | 23 | @@ -XXX,XX +XXX,XX @@ static void pl061_write(void *opaque, hwaddr offset, |
17 | return retval; | 24 | return; |
18 | } | 25 | } |
19 | 26 | ||
20 | -static void nvram_writeb (void *opaque, hwaddr addr, uint32_t value) | 27 | -static void pl061_reset(DeviceState *dev) |
21 | -{ | 28 | +static void pl061_enter_reset(Object *obj, ResetType type) |
22 | - M48t59State *NVRAM = opaque; | ||
23 | - | ||
24 | - m48t59_write(NVRAM, addr, value & 0xff); | ||
25 | -} | ||
26 | - | ||
27 | -static void nvram_writew (void *opaque, hwaddr addr, uint32_t value) | ||
28 | -{ | ||
29 | - M48t59State *NVRAM = opaque; | ||
30 | - | ||
31 | - m48t59_write(NVRAM, addr, (value >> 8) & 0xff); | ||
32 | - m48t59_write(NVRAM, addr + 1, value & 0xff); | ||
33 | -} | ||
34 | - | ||
35 | -static void nvram_writel (void *opaque, hwaddr addr, uint32_t value) | ||
36 | -{ | ||
37 | - M48t59State *NVRAM = opaque; | ||
38 | - | ||
39 | - m48t59_write(NVRAM, addr, (value >> 24) & 0xff); | ||
40 | - m48t59_write(NVRAM, addr + 1, (value >> 16) & 0xff); | ||
41 | - m48t59_write(NVRAM, addr + 2, (value >> 8) & 0xff); | ||
42 | - m48t59_write(NVRAM, addr + 3, value & 0xff); | ||
43 | -} | ||
44 | - | ||
45 | -static uint32_t nvram_readb (void *opaque, hwaddr addr) | ||
46 | +static uint64_t nvram_read(void *opaque, hwaddr addr, unsigned size) | ||
47 | { | 29 | { |
48 | M48t59State *NVRAM = opaque; | 30 | - PL061State *s = PL061(dev); |
49 | 31 | + PL061State *s = PL061(obj); | |
50 | return m48t59_read(NVRAM, addr); | 32 | + |
33 | + trace_pl061_reset(DEVICE(s)->canonical_path); | ||
34 | |||
35 | /* reset values from PL061 TRM, Stellaris LM3S5P31 & LM3S8962 Data Sheet */ | ||
36 | s->data = 0; | ||
37 | - s->old_out_data = 0; | ||
38 | s->old_in_data = 0; | ||
39 | s->dir = 0; | ||
40 | s->isense = 0; | ||
41 | @@ -XXX,XX +XXX,XX @@ static void pl061_reset(DeviceState *dev) | ||
42 | s->amsel = 0; | ||
51 | } | 43 | } |
52 | 44 | ||
53 | -static uint32_t nvram_readw (void *opaque, hwaddr addr) | 45 | +static void pl061_hold_reset(Object *obj) |
54 | +static void nvram_write(void *opaque, hwaddr addr, uint64_t value, | 46 | +{ |
55 | + unsigned size) | 47 | + PL061State *s = PL061(obj); |
48 | + int i, level; | ||
49 | + uint8_t floating = pl061_floating(s); | ||
50 | + uint8_t pullups = pl061_pullups(s); | ||
51 | + | ||
52 | + for (i = 0; i < N_GPIOS; i++) { | ||
53 | + if (extract32(floating, i, 1)) { | ||
54 | + continue; | ||
55 | + } | ||
56 | + level = extract32(pullups, i, 1); | ||
57 | + trace_pl061_set_output(DEVICE(s)->canonical_path, i, level); | ||
58 | + qemu_set_irq(s->out[i], level); | ||
59 | + } | ||
60 | + s->old_out_data = pullups; | ||
61 | +} | ||
62 | + | ||
63 | static void pl061_set_irq(void * opaque, int irq, int level) | ||
56 | { | 64 | { |
57 | M48t59State *NVRAM = opaque; | 65 | PL061State *s = (PL061State *)opaque; |
58 | - uint32_t retval; | 66 | @@ -XXX,XX +XXX,XX @@ static Property pl061_props[] = { |
59 | 67 | static void pl061_class_init(ObjectClass *klass, void *data) | |
60 | - retval = m48t59_read(NVRAM, addr) << 8; | 68 | { |
61 | - retval |= m48t59_read(NVRAM, addr + 1); | 69 | DeviceClass *dc = DEVICE_CLASS(klass); |
62 | - return retval; | 70 | + ResettableClass *rc = RESETTABLE_CLASS(klass); |
63 | -} | 71 | |
64 | - | 72 | dc->vmsd = &vmstate_pl061; |
65 | -static uint32_t nvram_readl (void *opaque, hwaddr addr) | 73 | - dc->reset = &pl061_reset; |
66 | -{ | 74 | dc->realize = pl061_realize; |
67 | - M48t59State *NVRAM = opaque; | 75 | device_class_set_props(dc, pl061_props); |
68 | - uint32_t retval; | 76 | + rc->phases.enter = pl061_enter_reset; |
69 | - | 77 | + rc->phases.hold = pl061_hold_reset; |
70 | - retval = m48t59_read(NVRAM, addr) << 24; | ||
71 | - retval |= m48t59_read(NVRAM, addr + 1) << 16; | ||
72 | - retval |= m48t59_read(NVRAM, addr + 2) << 8; | ||
73 | - retval |= m48t59_read(NVRAM, addr + 3); | ||
74 | - return retval; | ||
75 | + return m48t59_write(NVRAM, addr, value); | ||
76 | } | 78 | } |
77 | 79 | ||
78 | static const MemoryRegionOps nvram_ops = { | 80 | static const TypeInfo pl061_info = { |
79 | - .old_mmio = { | 81 | diff --git a/hw/gpio/trace-events b/hw/gpio/trace-events |
80 | - .read = { nvram_readb, nvram_readw, nvram_readl, }, | 82 | index XXXXXXX..XXXXXXX 100644 |
81 | - .write = { nvram_writeb, nvram_writew, nvram_writel, }, | 83 | --- a/hw/gpio/trace-events |
82 | - }, | 84 | +++ b/hw/gpio/trace-events |
83 | - .endianness = DEVICE_NATIVE_ENDIAN, | 85 | @@ -XXX,XX +XXX,XX @@ pl061_input_change(const char *id, int gpio, int level) "%s input %d changed to |
84 | + .read = nvram_read, | 86 | pl061_update_istate(const char *id, uint32_t istate, uint32_t im, int level) "%s GPIORIS 0x%x GPIOIE 0x%x interrupt level %d" |
85 | + .write = nvram_write, | 87 | pl061_read(const char *id, uint64_t offset, uint64_t r) "%s offset 0x%" PRIx64 " value 0x%" PRIx64 |
86 | + .impl.min_access_size = 1, | 88 | pl061_write(const char *id, uint64_t offset, uint64_t value) "%s offset 0x%" PRIx64 " value 0x%" PRIx64 |
87 | + .impl.max_access_size = 1, | 89 | +pl061_reset(const char *id) "%s reset" |
88 | + .valid.min_access_size = 1, | 90 | |
89 | + .valid.max_access_size = 4, | 91 | # sifive_gpio.c |
90 | + .endianness = DEVICE_BIG_ENDIAN, | 92 | sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64 |
91 | }; | ||
92 | |||
93 | static const VMStateDescription vmstate_m48t59 = { | ||
94 | -- | 93 | -- |
95 | 2.18.0 | 94 | 2.20.1 |
96 | 95 | ||
97 | 96 | diff view generated by jsdifflib |
1 | On real v7M hardware, the NMI line is an externally visible signal | 1 | The Luminary PL061s in the Stellaris LM3S9695 don't all have the same |
---|---|---|---|
2 | that an SoC or board can toggle to assert an NMI. Expose it in | 2 | reset value for GPIOPUR. We can get away with not letting the board |
3 | our QEMU NVIC and armv7m container objects so that a board model | 3 | configure the PUR reset value because we don't actually wire anything |
4 | can wire it up if it needs to. | 4 | up to the lines which should reset to pull-up. Add a comment noting |
5 | 5 | this omission. | |
6 | In particular, the MPS2 watchdog is wired to NMI. | ||
7 | 6 | ||
8 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 7 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
9 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | 8 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> |
10 | --- | 9 | --- |
11 | hw/arm/armv7m.c | 1 + | 10 | hw/gpio/pl061.c | 9 +++++++++ |
12 | hw/intc/armv7m_nvic.c | 19 +++++++++++++++++++ | 11 | 1 file changed, 9 insertions(+) |
13 | hw/intc/trace-events | 1 + | ||
14 | 3 files changed, 21 insertions(+) | ||
15 | 12 | ||
16 | diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c | 13 | diff --git a/hw/gpio/pl061.c b/hw/gpio/pl061.c |
17 | index XXXXXXX..XXXXXXX 100644 | 14 | index XXXXXXX..XXXXXXX 100644 |
18 | --- a/hw/arm/armv7m.c | 15 | --- a/hw/gpio/pl061.c |
19 | +++ b/hw/arm/armv7m.c | 16 | +++ b/hw/gpio/pl061.c |
20 | @@ -XXX,XX +XXX,XX @@ static void armv7m_realize(DeviceState *dev, Error **errp) | 17 | @@ -XXX,XX +XXX,XX @@ static void pl061_enter_reset(Object *obj, ResetType type) |
21 | */ | 18 | trace_pl061_reset(DEVICE(s)->canonical_path); |
22 | qdev_pass_gpios(DEVICE(&s->nvic), dev, NULL); | 19 | |
23 | qdev_pass_gpios(DEVICE(&s->nvic), dev, "SYSRESETREQ"); | 20 | /* reset values from PL061 TRM, Stellaris LM3S5P31 & LM3S8962 Data Sheet */ |
24 | + qdev_pass_gpios(DEVICE(&s->nvic), dev, "NMI"); | ||
25 | |||
26 | /* Wire the NVIC up to the CPU */ | ||
27 | sbd = SYS_BUS_DEVICE(&s->nvic); | ||
28 | diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c | ||
29 | index XXXXXXX..XXXXXXX 100644 | ||
30 | --- a/hw/intc/armv7m_nvic.c | ||
31 | +++ b/hw/intc/armv7m_nvic.c | ||
32 | @@ -XXX,XX +XXX,XX @@ static void set_irq_level(void *opaque, int n, int level) | ||
33 | } | ||
34 | } | ||
35 | |||
36 | +/* callback when external NMI line is changed */ | ||
37 | +static void nvic_nmi_trigger(void *opaque, int n, int level) | ||
38 | +{ | ||
39 | + NVICState *s = opaque; | ||
40 | + | ||
41 | + trace_nvic_set_nmi_level(level); | ||
42 | + | 21 | + |
43 | + /* | 22 | + /* |
44 | + * The architecture doesn't specify whether NMI should share | 23 | + * FIXME: For the LM3S6965, not all of the PL061 instances have the |
45 | + * the normal-interrupt behaviour of being resampled on | 24 | + * same reset values for GPIOPUR, GPIOAFSEL and GPIODEN, so in theory |
46 | + * exception handler return. We choose not to, so just | 25 | + * we should allow the board to configure these via properties. |
47 | + * set NMI pending here and don't track the current level. | 26 | + * In practice, we don't wire anything up to the affected GPIO lines |
27 | + * (PB7, PC0, PC1, PC2, PC3 -- they're used for JTAG), so we can | ||
28 | + * get away with this inaccuracy. | ||
48 | + */ | 29 | + */ |
49 | + if (level) { | 30 | s->data = 0; |
50 | + armv7m_nvic_set_pending(s, ARMV7M_EXCP_NMI, false); | 31 | s->old_in_data = 0; |
51 | + } | 32 | s->dir = 0; |
52 | +} | ||
53 | + | ||
54 | static uint32_t nvic_readl(NVICState *s, uint32_t offset, MemTxAttrs attrs) | ||
55 | { | ||
56 | ARMCPU *cpu = s->cpu; | ||
57 | @@ -XXX,XX +XXX,XX @@ static void armv7m_nvic_instance_init(Object *obj) | ||
58 | qdev_init_gpio_out_named(dev, &nvic->sysresetreq, "SYSRESETREQ", 1); | ||
59 | qdev_init_gpio_in_named(dev, nvic_systick_trigger, "systick-trigger", | ||
60 | M_REG_NUM_BANKS); | ||
61 | + qdev_init_gpio_in_named(dev, nvic_nmi_trigger, "NMI", 1); | ||
62 | } | ||
63 | |||
64 | static void armv7m_nvic_class_init(ObjectClass *klass, void *data) | ||
65 | diff --git a/hw/intc/trace-events b/hw/intc/trace-events | ||
66 | index XXXXXXX..XXXXXXX 100644 | ||
67 | --- a/hw/intc/trace-events | ||
68 | +++ b/hw/intc/trace-events | ||
69 | @@ -XXX,XX +XXX,XX @@ nvic_acknowledge_irq(int irq, int prio) "NVIC acknowledge IRQ: %d now active (pr | ||
70 | nvic_get_pending_irq_info(int irq, bool secure) "NVIC next IRQ %d: targets_secure: %d" | ||
71 | nvic_complete_irq(int irq, bool secure) "NVIC complete IRQ %d (secure %d)" | ||
72 | nvic_set_irq_level(int irq, int level) "NVIC external irq %d level set to %d" | ||
73 | +nvic_set_nmi_level(int level) "NVIC external NMI level set to %d" | ||
74 | nvic_sysreg_read(uint64_t addr, uint32_t value, unsigned size) "NVIC sysreg read addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u" | ||
75 | nvic_sysreg_write(uint64_t addr, uint32_t value, unsigned size) "NVIC sysreg write addr 0x%" PRIx64 " data 0x%" PRIx32 " size %u" | ||
76 | |||
77 | -- | 33 | -- |
78 | 2.18.0 | 34 | 2.20.1 |
79 | 35 | ||
80 | 36 | diff view generated by jsdifflib |
1 | From: Roman Kapl <rka@sysgo.com> | 1 | The stellaris board doesn't emulate the handling of the OLED |
---|---|---|---|
2 | chipselect line correctly. Expand the comment describing this, | ||
3 | including a sketch of the theoretical correct way to do it. | ||
2 | 4 | ||
3 | If an instruction is conditional (like CBZ) and it is executed | ||
4 | conditionally (using the ITx instruction), a jump to an undefined | ||
5 | label is generated, and QEMU crashes. | ||
6 | |||
7 | CBZ in IT block is an UNPREDICTABLE behavior, but we should not | ||
8 | crash. Honouring the condition code is allowed by the spec in this | ||
9 | case (constrained unpredictable, ARMv8, section K1.1.7), and matches | ||
10 | what we do for other "UNPREDICTABLE inside an IT block" instructions. | ||
11 | |||
12 | Fix the 'skip on condition' code to create a new label only if it | ||
13 | does not already exist. Previously multiple labels were created, but | ||
14 | only the last one of them was set. | ||
15 | |||
16 | Signed-off-by: Roman Kapl <rka@sysgo.com> | ||
17 | Reviewed-by: Richard Henderson <richard.henderson@linaro.org> | ||
18 | Message-id: 20180816120533.6587-1-rka@sysgo.com | ||
19 | [PMM: fixed ^ 1 being applied to wrong argument, fixed typo] | ||
20 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> | ||
21 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 5 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
22 | --- | 6 | --- |
23 | target/arm/translate.c | 35 +++++++++++++++++++++-------------- | 7 | hw/arm/stellaris.c | 56 +++++++++++++++++++++++++++++++++++++++++++++- |
24 | 1 file changed, 21 insertions(+), 14 deletions(-) | 8 | 1 file changed, 55 insertions(+), 1 deletion(-) |
25 | 9 | ||
26 | diff --git a/target/arm/translate.c b/target/arm/translate.c | 10 | diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c |
27 | index XXXXXXX..XXXXXXX 100644 | 11 | index XXXXXXX..XXXXXXX 100644 |
28 | --- a/target/arm/translate.c | 12 | --- a/hw/arm/stellaris.c |
29 | +++ b/target/arm/translate.c | 13 | +++ b/hw/arm/stellaris.c |
30 | @@ -XXX,XX +XXX,XX @@ static void gen_srs(DisasContext *s, | 14 | @@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board) |
31 | s->base.is_jmp = DISAS_UPDATE; | 15 | DeviceState *sddev; |
32 | } | 16 | DeviceState *ssddev; |
33 | 17 | ||
34 | +/* Generate a label used for skipping this instruction */ | 18 | - /* Some boards have both an OLED controller and SD card connected to |
35 | +static void arm_gen_condlabel(DisasContext *s) | 19 | + /* |
36 | +{ | 20 | + * Some boards have both an OLED controller and SD card connected to |
37 | + if (!s->condjmp) { | 21 | * the same SSI port, with the SD card chip select connected to a |
38 | + s->condlabel = gen_new_label(); | 22 | * GPIO pin. Technically the OLED chip select is connected to the |
39 | + s->condjmp = 1; | 23 | * SSI Fss pin. We do not bother emulating that as both devices |
40 | + } | 24 | * should never be selected simultaneously, and our OLED controller |
41 | +} | 25 | * ignores stray 0xff commands that occur when deselecting the SD |
42 | + | 26 | * card. |
43 | +/* Skip this instruction if the ARM condition is false */ | 27 | + * |
44 | +static void arm_skip_unless(DisasContext *s, uint32_t cond) | 28 | + * The h/w wiring is: |
45 | +{ | 29 | + * - GPIO pin D0 is wired to the active-low SD card chip select |
46 | + arm_gen_condlabel(s); | 30 | + * - GPIO pin A3 is wired to the active-low OLED chip select |
47 | + arm_gen_test_cc(cond ^ 1, s->condlabel); | 31 | + * - The SoC wiring of the PL061 "auxiliary function" for A3 is |
48 | +} | 32 | + * SSI0Fss ("frame signal"), which is an output from the SoC's |
49 | + | 33 | + * SSI controller. The SSI controller takes SSI0Fss low when it |
50 | static void disas_arm_insn(DisasContext *s, unsigned int insn) | 34 | + * transmits a frame, so it can work as a chip-select signal. |
51 | { | 35 | + * - GPIO A4 is aux-function SSI0Rx, and wired to the SD card Tx |
52 | unsigned int cond, val, op1, i, shift, rm, rs, rn, rd, sh; | 36 | + * (the OLED never sends data to the CPU, so no wiring needed) |
53 | @@ -XXX,XX +XXX,XX @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) | 37 | + * - GPIO A5 is aux-function SSI0Tx, and wired to the SD card Rx |
54 | if (cond != 0xe) { | 38 | + * and the OLED display-data-in |
55 | /* if not always execute, we generate a conditional jump to | 39 | + * - GPIO A2 is aux-function SSI0Clk, wired to SD card and OLED |
56 | next instruction */ | 40 | + * serial-clock input |
57 | - s->condlabel = gen_new_label(); | 41 | + * So a guest that wants to use the OLED can configure the PL061 |
58 | - arm_gen_test_cc(cond ^ 1, s->condlabel); | 42 | + * to make pins A2, A3, A5 aux-function, so they are connected |
59 | - s->condjmp = 1; | 43 | + * directly to the SSI controller. When the SSI controller sends |
60 | + arm_skip_unless(s, cond); | 44 | + * data it asserts SSI0Fss which selects the OLED. |
61 | } | 45 | + * A guest that wants to use the SD card configures A2, A4 and A5 |
62 | if ((insn & 0x0f900000) == 0x03000000) { | 46 | + * as aux-function, but leaves A3 as a software-controlled GPIO |
63 | if ((insn & (1 << 21)) == 0) { | 47 | + * line. It asserts the SD card chip-select by using the PL061 |
64 | @@ -XXX,XX +XXX,XX @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn) | 48 | + * to control pin D0, and lets the SSI controller handle Clk, Tx |
65 | /* Conditional branch. */ | 49 | + * and Rx. (The SSI controller asserts Fss during tx cycles as |
66 | op = (insn >> 22) & 0xf; | 50 | + * usual, but because A3 is not set to aux-function this is not |
67 | /* Generate a conditional jump to next instruction. */ | 51 | + * forwarded to the OLED, and so the OLED stays unselected.) |
68 | - s->condlabel = gen_new_label(); | 52 | + * |
69 | - arm_gen_test_cc(op ^ 1, s->condlabel); | 53 | + * The QEMU implementation instead is: |
70 | - s->condjmp = 1; | 54 | + * - GPIO pin D0 is wired to the active-low SD card chip select, |
71 | + arm_skip_unless(s, op); | 55 | + * and also to the OLED chip-select which is implemented |
72 | 56 | + * as *active-high* | |
73 | /* offset[11:1] = insn[10:0] */ | 57 | + * - SSI controller signals go to the devices regardless of |
74 | offset = (insn & 0x7ff) << 1; | 58 | + * whether the guest programs A2, A4, A5 as aux-function or not |
75 | @@ -XXX,XX +XXX,XX @@ static void disas_thumb_insn(DisasContext *s, uint32_t insn) | 59 | + * |
76 | case 1: case 3: case 9: case 11: /* czb */ | 60 | + * The problem with this implementation is if the guest doesn't |
77 | rm = insn & 7; | 61 | + * care about the SD card and only uses the OLED. In that case it |
78 | tmp = load_reg(s, rm); | 62 | + * may choose never to do anything with D0 (leaving it in its |
79 | - s->condlabel = gen_new_label(); | 63 | + * default floating state, which reliably leaves the card disabled |
80 | - s->condjmp = 1; | 64 | + * because an SD card has a pullup on CS within the card itself), |
81 | + arm_gen_condlabel(s); | 65 | + * and only set up A2, A3, A5. This for us would mean the OLED |
82 | if (insn & (1 << 11)) | 66 | + * never gets the chip-select assert it needs. We work around |
83 | tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, s->condlabel); | 67 | + * this with a manual raise of D0 here (despite board creation |
84 | else | 68 | + * code being the wrong place to raise IRQ lines) to put the OLED |
85 | @@ -XXX,XX +XXX,XX @@ static void disas_thumb_insn(DisasContext *s, uint32_t insn) | 69 | + * into an initially selected state. |
86 | break; | 70 | + * |
87 | } | 71 | + * In theory the right way to model this would be: |
88 | /* generate a conditional jump to next instruction */ | 72 | + * - Implement aux-function support in the PL061, with an |
89 | - s->condlabel = gen_new_label(); | 73 | + * extra set of AFIN and AFOUT GPIO lines (set up so that |
90 | - arm_gen_test_cc(cond ^ 1, s->condlabel); | 74 | + * if a GPIO line is in auxfn mode the main GPIO in and out |
91 | - s->condjmp = 1; | 75 | + * track the AFIN and AFOUT lines) |
92 | + arm_skip_unless(s, cond); | 76 | + * - Wire the AFOUT for D0 up to either a line from the |
93 | 77 | + * SSI controller that's pulled low around every transmit, | |
94 | /* jump to the offset */ | 78 | + * or at least to an always-0 line here on the board |
95 | val = (uint32_t)s->pc + 2; | 79 | + * - Make the ssd0323 OLED controller chipselect active-low |
96 | @@ -XXX,XX +XXX,XX @@ static void thumb_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu) | 80 | */ |
97 | uint32_t cond = dc->condexec_cond; | 81 | bus = qdev_get_child_bus(dev, "ssi"); |
98 | |||
99 | if (cond != 0x0e) { /* Skip conditional when condition is AL. */ | ||
100 | - dc->condlabel = gen_new_label(); | ||
101 | - arm_gen_test_cc(cond ^ 1, dc->condlabel); | ||
102 | - dc->condjmp = 1; | ||
103 | + arm_skip_unless(dc, cond); | ||
104 | } | ||
105 | } | ||
106 | 82 | ||
107 | -- | 83 | -- |
108 | 2.18.0 | 84 | 2.20.1 |
109 | 85 | ||
110 | 86 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | We implement the HAMAIR1 register as RAZ/WI; we had a typo in the | ||
2 | regdef, though, and were incorrectly naming it HMAIR1 (which is | ||
3 | a different register which we also implement as RAZ/WI). | ||
4 | 1 | ||
5 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
6 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
7 | Reviewed-by: Luc Michel <luc.michel@greensocs.com> | ||
8 | Message-id: 20180814124254.5229-2-peter.maydell@linaro.org | ||
9 | --- | ||
10 | target/arm/helper.c | 4 ++-- | ||
11 | 1 file changed, 2 insertions(+), 2 deletions(-) | ||
12 | |||
13 | diff --git a/target/arm/helper.c b/target/arm/helper.c | ||
14 | index XXXXXXX..XXXXXXX 100644 | ||
15 | --- a/target/arm/helper.c | ||
16 | +++ b/target/arm/helper.c | ||
17 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = { | ||
18 | .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 0, | ||
19 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
20 | .resetvalue = 0 }, | ||
21 | - { .name = "HMAIR1", .state = ARM_CP_STATE_AA32, | ||
22 | + { .name = "HAMAIR1", .state = ARM_CP_STATE_AA32, | ||
23 | .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, | ||
24 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
25 | .resetvalue = 0 }, | ||
26 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = { | ||
27 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
28 | .resetvalue = 0 }, | ||
29 | /* HAMAIR1 is mapped to AMAIR_EL2[63:32] */ | ||
30 | - { .name = "HMAIR1", .state = ARM_CP_STATE_AA32, | ||
31 | + { .name = "HAMAIR1", .state = ARM_CP_STATE_AA32, | ||
32 | .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, | ||
33 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
34 | .resetvalue = 0 }, | ||
35 | -- | ||
36 | 2.18.0 | ||
37 | |||
38 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | ARMCPRegInfo structs will default to .cp = 15 if they | ||
2 | are ARM_CP_STATE_BOTH, but not if they are ARM_CP_STATE_AA32 | ||
3 | (because a coprocessor number of 0 is valid for AArch32). | ||
4 | We forgot to explicitly set .cp = 15 for the HMAIR1 and | ||
5 | HAMAIR1 regdefs, which meant they would UNDEF when the guest | ||
6 | tried to access them under cp15. | ||
7 | 1 | ||
8 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
9 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
10 | Reviewed-by: Luc Michel <luc.michel@greensocs.com> | ||
11 | Message-id: 20180814124254.5229-3-peter.maydell@linaro.org | ||
12 | --- | ||
13 | target/arm/helper.c | 8 ++++---- | ||
14 | 1 file changed, 4 insertions(+), 4 deletions(-) | ||
15 | |||
16 | diff --git a/target/arm/helper.c b/target/arm/helper.c | ||
17 | index XXXXXXX..XXXXXXX 100644 | ||
18 | --- a/target/arm/helper.c | ||
19 | +++ b/target/arm/helper.c | ||
20 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = { | ||
21 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
22 | .resetvalue = 0 }, | ||
23 | { .name = "HMAIR1", .state = ARM_CP_STATE_AA32, | ||
24 | - .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 1, | ||
25 | + .cp = 15, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 1, | ||
26 | .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, | ||
27 | { .name = "AMAIR_EL2", .state = ARM_CP_STATE_BOTH, | ||
28 | .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 0, | ||
29 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
30 | .resetvalue = 0 }, | ||
31 | { .name = "HAMAIR1", .state = ARM_CP_STATE_AA32, | ||
32 | - .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, | ||
33 | + .cp = 15, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, | ||
34 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
35 | .resetvalue = 0 }, | ||
36 | { .name = "AFSR0_EL2", .state = ARM_CP_STATE_BOTH, | ||
37 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = { | ||
38 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.mair_el[2]), | ||
39 | .resetvalue = 0 }, | ||
40 | { .name = "HMAIR1", .state = ARM_CP_STATE_AA32, | ||
41 | - .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 1, | ||
42 | + .cp = 15, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 1, | ||
43 | .access = PL2_RW, .type = ARM_CP_ALIAS, | ||
44 | .fieldoffset = offsetofhigh32(CPUARMState, cp15.mair_el[2]) }, | ||
45 | { .name = "AMAIR_EL2", .state = ARM_CP_STATE_BOTH, | ||
46 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = { | ||
47 | .resetvalue = 0 }, | ||
48 | /* HAMAIR1 is mapped to AMAIR_EL2[63:32] */ | ||
49 | { .name = "HAMAIR1", .state = ARM_CP_STATE_AA32, | ||
50 | - .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, | ||
51 | + .cp = 15, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, | ||
52 | .access = PL2_RW, .type = ARM_CP_CONST, | ||
53 | .resetvalue = 0 }, | ||
54 | { .name = "AFSR0_EL2", .state = ARM_CP_STATE_BOTH, | ||
55 | -- | ||
56 | 2.18.0 | ||
57 | |||
58 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | Implement the AArch32 HVBAR register; we can do this just by | ||
2 | making the existing VBAR_EL2 regdefs be STATE_BOTH. | ||
3 | 1 | ||
4 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
5 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
6 | Reviewed-by: Luc Michel <luc.michel@greensocs.com> | ||
7 | Message-id: 20180814124254.5229-5-peter.maydell@linaro.org | ||
8 | --- | ||
9 | target/arm/helper.c | 4 ++-- | ||
10 | 1 file changed, 2 insertions(+), 2 deletions(-) | ||
11 | |||
12 | diff --git a/target/arm/helper.c b/target/arm/helper.c | ||
13 | index XXXXXXX..XXXXXXX 100644 | ||
14 | --- a/target/arm/helper.c | ||
15 | +++ b/target/arm/helper.c | ||
16 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { | ||
17 | |||
18 | /* Used to describe the behaviour of EL2 regs when EL2 does not exist. */ | ||
19 | static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = { | ||
20 | - { .name = "VBAR_EL2", .state = ARM_CP_STATE_AA64, | ||
21 | + { .name = "VBAR_EL2", .state = ARM_CP_STATE_BOTH, | ||
22 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 0, | ||
23 | .access = PL2_RW, | ||
24 | .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore }, | ||
25 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = { | ||
26 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 0, | ||
27 | .access = PL2_RW, | ||
28 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_HYP]) }, | ||
29 | - { .name = "VBAR_EL2", .state = ARM_CP_STATE_AA64, | ||
30 | + { .name = "VBAR_EL2", .state = ARM_CP_STATE_BOTH, | ||
31 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 0, | ||
32 | .access = PL2_RW, .writefn = vbar_write, | ||
33 | .fieldoffset = offsetof(CPUARMState, cp15.vbar_el[2]), | ||
34 | -- | ||
35 | 2.18.0 | ||
36 | |||
37 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | The AArch32 virtualization extensions support these fault address | ||
2 | registers: | ||
3 | * HDFAR: aliased with AArch64 FAR_EL2[31:0] and AArch32 DFAR(S) | ||
4 | * HIFAR: aliased with AArch64 FAR_EL2[63:32] and AArch32 IFAR(S) | ||
5 | 1 | ||
6 | Implement the accessors for these. This fixes in passing a bug | ||
7 | where we weren't implementing the "RES0 from EL3 if EL2 not | ||
8 | implemented" behaviour for AArch64 FAR_EL2. | ||
9 | |||
10 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
11 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
12 | Reviewed-by: Luc Michel <luc.michel@greensocs.com> | ||
13 | Message-id: 20180814124254.5229-7-peter.maydell@linaro.org | ||
14 | --- | ||
15 | target/arm/helper.c | 14 +++++++++++++- | ||
16 | 1 file changed, 13 insertions(+), 1 deletion(-) | ||
17 | |||
18 | diff --git a/target/arm/helper.c b/target/arm/helper.c | ||
19 | index XXXXXXX..XXXXXXX 100644 | ||
20 | --- a/target/arm/helper.c | ||
21 | +++ b/target/arm/helper.c | ||
22 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = { | ||
23 | { .name = "HSTR_EL2", .state = ARM_CP_STATE_BOTH, | ||
24 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 3, | ||
25 | .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, | ||
26 | + { .name = "FAR_EL2", .state = ARM_CP_STATE_BOTH, | ||
27 | + .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 0, | ||
28 | + .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, | ||
29 | + { .name = "HIFAR", .state = ARM_CP_STATE_AA32, | ||
30 | + .type = ARM_CP_CONST, | ||
31 | + .cp = 15, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 2, | ||
32 | + .access = PL2_RW, .resetvalue = 0 }, | ||
33 | REGINFO_SENTINEL | ||
34 | }; | ||
35 | |||
36 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = { | ||
37 | { .name = "ESR_EL2", .state = ARM_CP_STATE_AA64, | ||
38 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0, | ||
39 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[2]) }, | ||
40 | - { .name = "FAR_EL2", .state = ARM_CP_STATE_AA64, | ||
41 | + { .name = "FAR_EL2", .state = ARM_CP_STATE_BOTH, | ||
42 | .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 0, | ||
43 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[2]) }, | ||
44 | + { .name = "HIFAR", .state = ARM_CP_STATE_AA32, | ||
45 | + .type = ARM_CP_ALIAS, | ||
46 | + .cp = 15, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 2, | ||
47 | + .access = PL2_RW, | ||
48 | + .fieldoffset = offsetofhigh32(CPUARMState, cp15.far_el[2]) }, | ||
49 | { .name = "SPSR_EL2", .state = ARM_CP_STATE_AA64, | ||
50 | .type = ARM_CP_ALIAS, | ||
51 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 0, | ||
52 | -- | ||
53 | 2.18.0 | ||
54 | |||
55 | diff view generated by jsdifflib |
1 | The AArch32 HSR is the equivalent of AArch64 ESR_EL2; | 1 | From: "hnick@vmware.com" <hnick@vmware.com> |
---|---|---|---|
2 | we can implement it by marking our existing ESR_EL2 regdef | ||
3 | as STATE_BOTH. It also needs to be "RES0 from EL3 if | ||
4 | EL2 not implemented", so add the missing stanza to | ||
5 | el3_no_el2_cp_reginfo. | ||
6 | 2 | ||
3 | Signed-off-by: Nick Hudson <hnick@vmware.com> | ||
4 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> | ||
7 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 5 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
8 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
9 | Reviewed-by: Luc Michel <luc.michel@greensocs.com> | ||
10 | Message-id: 20180814124254.5229-8-peter.maydell@linaro.org | ||
11 | --- | 6 | --- |
12 | target/arm/helper.c | 6 +++++- | 7 | target/arm/helper.c | 16 +++++++++++++--- |
13 | 1 file changed, 5 insertions(+), 1 deletion(-) | 8 | 1 file changed, 13 insertions(+), 3 deletions(-) |
14 | 9 | ||
15 | diff --git a/target/arm/helper.c b/target/arm/helper.c | 10 | diff --git a/target/arm/helper.c b/target/arm/helper.c |
16 | index XXXXXXX..XXXXXXX 100644 | 11 | index XXXXXXX..XXXXXXX 100644 |
17 | --- a/target/arm/helper.c | 12 | --- a/target/arm/helper.c |
18 | +++ b/target/arm/helper.c | 13 | +++ b/target/arm/helper.c |
19 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el3_no_el2_cp_reginfo[] = { | 14 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { |
20 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0, | 15 | .access = PL1_RW, .accessfn = access_tda, |
21 | .access = PL2_RW, | 16 | .fieldoffset = offsetof(CPUARMState, cp15.mdscr_el1), |
22 | .readfn = arm_cp_read_zero, .writefn = arm_cp_write_ignore }, | 17 | .resetvalue = 0 }, |
23 | + { .name = "ESR_EL2", .state = ARM_CP_STATE_BOTH, | 18 | - /* MDCCSR_EL0, aka DBGDSCRint. This is a read-only mirror of MDSCR_EL1. |
24 | + .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0, | 19 | + /* |
25 | + .access = PL2_RW, | 20 | + * MDCCSR_EL0[30:29] map to EDSCR[30:29]. Simply RAZ as the external |
21 | + * Debug Communication Channel is not implemented. | ||
22 | + */ | ||
23 | + { .name = "MDCCSR_EL0", .state = ARM_CP_STATE_AA64, | ||
24 | + .opc0 = 2, .opc1 = 3, .crn = 0, .crm = 1, .opc2 = 0, | ||
25 | + .access = PL0_R, .accessfn = access_tda, | ||
26 | + .type = ARM_CP_CONST, .resetvalue = 0 }, | 26 | + .type = ARM_CP_CONST, .resetvalue = 0 }, |
27 | { .name = "CPTR_EL2", .state = ARM_CP_STATE_BOTH, | 27 | + /* |
28 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 2, | 28 | + * DBGDSCRint[15,12,5:2] map to MDSCR_EL1[15,12,5:2]. Map all bits as |
29 | .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, | 29 | + * it is unlikely a guest will care. |
30 | @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo el2_cp_reginfo[] = { | 30 | * We don't implement the configurable EL0 access. |
31 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 1, | 31 | */ |
32 | .access = PL2_RW, | 32 | - { .name = "MDCCSR_EL0", .state = ARM_CP_STATE_BOTH, |
33 | .fieldoffset = offsetof(CPUARMState, elr_el[2]) }, | 33 | - .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 0, |
34 | - { .name = "ESR_EL2", .state = ARM_CP_STATE_AA64, | 34 | + { .name = "DBGDSCRint", .state = ARM_CP_STATE_AA32, |
35 | + { .name = "ESR_EL2", .state = ARM_CP_STATE_BOTH, | 35 | + .cp = 14, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 0, |
36 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0, | 36 | .type = ARM_CP_ALIAS, |
37 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[2]) }, | 37 | .access = PL1_R, .accessfn = access_tda, |
38 | { .name = "FAR_EL2", .state = ARM_CP_STATE_BOTH, | 38 | .fieldoffset = offsetof(CPUARMState, cp15.mdscr_el1), }, |
39 | -- | 39 | -- |
40 | 2.18.0 | 40 | 2.20.1 |
41 | 41 | ||
42 | 42 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | ARMv7VE introduced the ERET instruction, which is necessary to | ||
2 | return from an exception taken to Hyp mode. Implement this. | ||
3 | In A32 encoding it is a completely new encoding; in T32 it | ||
4 | is an adjustment of the behaviour of the existing | ||
5 | "SUBS PC, LR, #<imm8>" instruction. | ||
6 | 1 | ||
7 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
8 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
9 | Reviewed-by: Luc Michel <luc.michel@greensocs.com> | ||
10 | Message-id: 20180814124254.5229-10-peter.maydell@linaro.org | ||
11 | --- | ||
12 | target/arm/translate.c | 31 +++++++++++++++++++++++++++++-- | ||
13 | 1 file changed, 29 insertions(+), 2 deletions(-) | ||
14 | |||
15 | diff --git a/target/arm/translate.c b/target/arm/translate.c | ||
16 | index XXXXXXX..XXXXXXX 100644 | ||
17 | --- a/target/arm/translate.c | ||
18 | +++ b/target/arm/translate.c | ||
19 | @@ -XXX,XX +XXX,XX @@ static void disas_arm_insn(DisasContext *s, unsigned int insn) | ||
20 | tcg_temp_free_i32(tmp2); | ||
21 | store_reg(s, rd, tmp); | ||
22 | break; | ||
23 | + case 0x6: /* ERET */ | ||
24 | + if (op1 != 3) { | ||
25 | + goto illegal_op; | ||
26 | + } | ||
27 | + if (!arm_dc_feature(s, ARM_FEATURE_V7VE)) { | ||
28 | + goto illegal_op; | ||
29 | + } | ||
30 | + if ((insn & 0x000fff0f) != 0x0000000e) { | ||
31 | + /* UNPREDICTABLE; we choose to UNDEF */ | ||
32 | + goto illegal_op; | ||
33 | + } | ||
34 | + | ||
35 | + if (s->current_el == 2) { | ||
36 | + tmp = load_cpu_field(elr_el[2]); | ||
37 | + } else { | ||
38 | + tmp = load_reg(s, 14); | ||
39 | + } | ||
40 | + gen_exception_return(s, tmp); | ||
41 | + break; | ||
42 | case 7: | ||
43 | { | ||
44 | int imm16 = extract32(insn, 0, 4) | (extract32(insn, 8, 12) << 4); | ||
45 | @@ -XXX,XX +XXX,XX @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn) | ||
46 | if (rn != 14 || rd != 15) { | ||
47 | goto illegal_op; | ||
48 | } | ||
49 | - tmp = load_reg(s, rn); | ||
50 | - tcg_gen_subi_i32(tmp, tmp, insn & 0xff); | ||
51 | + if (s->current_el == 2) { | ||
52 | + /* ERET from Hyp uses ELR_Hyp, not LR */ | ||
53 | + if (insn & 0xff) { | ||
54 | + goto illegal_op; | ||
55 | + } | ||
56 | + tmp = load_cpu_field(elr_el[2]); | ||
57 | + } else { | ||
58 | + tmp = load_reg(s, rn); | ||
59 | + tcg_gen_subi_i32(tmp, tmp, insn & 0xff); | ||
60 | + } | ||
61 | gen_exception_return(s, tmp); | ||
62 | break; | ||
63 | case 6: /* MRS */ | ||
64 | -- | ||
65 | 2.18.0 | ||
66 | |||
67 | diff view generated by jsdifflib |
1 | From: Hans-Erik Floryd <hans-erik.floryd@rt-labs.com> | 1 | From: Rebecca Cran <rebecca@nuviainc.com> |
---|---|---|---|
2 | 2 | ||
3 | Add the ESDHC PRSSTAT_SDSTB bit, using the value of SDHC_CLOCK_INT_STABLE. | 3 | Add a space in the message printed when gicr_read*/gicr_write* returns |
4 | Freescale recommends checking this bit when changing clock frequency. | 4 | MEMTX_ERROR in arm_gicv3_redist.c. |
5 | 5 | ||
6 | Signed-off-by: Hans-Erik Floryd <hans-erik.floryd@rt-labs.com> | 6 | Signed-off-by: Rebecca Cran <rebecca@nuviainc.com> |
7 | Message-id: 1534507843-4251-1-git-send-email-hans-erik.floryd@rt-labs.com | 7 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> |
8 | [PMM: fixed indentation] | 8 | Message-id: 20210706211432.31902-1-rebecca@nuviainc.com |
9 | Reviewed-by: Peter Maydell <peter.maydell@linaro.org> | ||
10 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | 9 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> |
11 | --- | 10 | --- |
12 | hw/sd/sdhci-internal.h | 2 ++ | 11 | hw/intc/arm_gicv3_redist.c | 4 ++-- |
13 | hw/sd/sdhci.c | 8 ++++++++ | 12 | 1 file changed, 2 insertions(+), 2 deletions(-) |
14 | 2 files changed, 10 insertions(+) | ||
15 | 13 | ||
16 | diff --git a/hw/sd/sdhci-internal.h b/hw/sd/sdhci-internal.h | 14 | diff --git a/hw/intc/arm_gicv3_redist.c b/hw/intc/arm_gicv3_redist.c |
17 | index XXXXXXX..XXXXXXX 100644 | 15 | index XXXXXXX..XXXXXXX 100644 |
18 | --- a/hw/sd/sdhci-internal.h | 16 | --- a/hw/intc/arm_gicv3_redist.c |
19 | +++ b/hw/sd/sdhci-internal.h | 17 | +++ b/hw/intc/arm_gicv3_redist.c |
20 | @@ -XXX,XX +XXX,XX @@ extern const VMStateDescription sdhci_vmstate; | 18 | @@ -XXX,XX +XXX,XX @@ MemTxResult gicv3_redist_read(void *opaque, hwaddr offset, uint64_t *data, |
21 | #define ESDHC_CTRL_4BITBUS (0x1 << 1) | 19 | if (r == MEMTX_ERROR) { |
22 | #define ESDHC_CTRL_8BITBUS (0x2 << 1) | 20 | qemu_log_mask(LOG_GUEST_ERROR, |
23 | 21 | "%s: invalid guest read at offset " TARGET_FMT_plx | |
24 | +#define ESDHC_PRNSTS_SDSTB (1 << 3) | 22 | - "size %u\n", __func__, offset, size); |
25 | + | 23 | + " size %u\n", __func__, offset, size); |
26 | #endif | 24 | trace_gicv3_redist_badread(gicv3_redist_affid(cs), offset, |
27 | diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c | 25 | size, attrs.secure); |
28 | index XXXXXXX..XXXXXXX 100644 | 26 | /* The spec requires that reserved registers are RAZ/WI; |
29 | --- a/hw/sd/sdhci.c | 27 | @@ -XXX,XX +XXX,XX @@ MemTxResult gicv3_redist_write(void *opaque, hwaddr offset, uint64_t data, |
30 | +++ b/hw/sd/sdhci.c | 28 | if (r == MEMTX_ERROR) { |
31 | @@ -XXX,XX +XXX,XX @@ static uint64_t usdhc_read(void *opaque, hwaddr offset, unsigned size) | 29 | qemu_log_mask(LOG_GUEST_ERROR, |
32 | 30 | "%s: invalid guest write at offset " TARGET_FMT_plx | |
33 | break; | 31 | - "size %u\n", __func__, offset, size); |
34 | 32 | + " size %u\n", __func__, offset, size); | |
35 | + case SDHC_PRNSTS: | 33 | trace_gicv3_redist_badwrite(gicv3_redist_affid(cs), offset, data, |
36 | + /* Add SDSTB (SD Clock Stable) bit to PRNSTS */ | 34 | size, attrs.secure); |
37 | + ret = sdhci_read(opaque, offset, size) & ~ESDHC_PRNSTS_SDSTB; | 35 | /* The spec requires that reserved registers are RAZ/WI; |
38 | + if (s->clkcon & SDHC_CLOCK_INT_STABLE) { | ||
39 | + ret |= ESDHC_PRNSTS_SDSTB; | ||
40 | + } | ||
41 | + break; | ||
42 | + | ||
43 | case ESDHC_DLL_CTRL: | ||
44 | case ESDHC_TUNE_CTRL_STATUS: | ||
45 | case ESDHC_UNDOCUMENTED_REG27: | ||
46 | -- | 36 | -- |
47 | 2.18.0 | 37 | 2.20.1 |
48 | 38 | ||
49 | 39 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | Remove the obsolete MMIO request_ptr APIs; they have no | ||
2 | users now. | ||
3 | 1 | ||
4 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
5 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
6 | Reviewed-by: Alistair Francis <alistair.francis@wdc.com> | ||
7 | Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com> | ||
8 | Message-id: 20180817114619.22354-3-peter.maydell@linaro.org | ||
9 | --- | ||
10 | include/exec/memory.h | 35 -------------- | ||
11 | memory.c | 110 ------------------------------------------ | ||
12 | 2 files changed, 145 deletions(-) | ||
13 | |||
14 | diff --git a/include/exec/memory.h b/include/exec/memory.h | ||
15 | index XXXXXXX..XXXXXXX 100644 | ||
16 | --- a/include/exec/memory.h | ||
17 | +++ b/include/exec/memory.h | ||
18 | @@ -XXX,XX +XXX,XX @@ struct MemoryRegionOps { | ||
19 | uint64_t data, | ||
20 | unsigned size, | ||
21 | MemTxAttrs attrs); | ||
22 | - /* Instruction execution pre-callback: | ||
23 | - * @addr is the address of the access relative to the @mr. | ||
24 | - * @size is the size of the area returned by the callback. | ||
25 | - * @offset is the location of the pointer inside @mr. | ||
26 | - * | ||
27 | - * Returns a pointer to a location which contains guest code. | ||
28 | - */ | ||
29 | - void *(*request_ptr)(void *opaque, hwaddr addr, unsigned *size, | ||
30 | - unsigned *offset); | ||
31 | |||
32 | enum device_endian endianness; | ||
33 | /* Guest-visible constraints: */ | ||
34 | @@ -XXX,XX +XXX,XX @@ void memory_global_dirty_log_stop(void); | ||
35 | void mtree_info(fprintf_function mon_printf, void *f, bool flatview, | ||
36 | bool dispatch_tree, bool owner); | ||
37 | |||
38 | -/** | ||
39 | - * memory_region_request_mmio_ptr: request a pointer to an mmio | ||
40 | - * MemoryRegion. If it is possible map a RAM MemoryRegion with this pointer. | ||
41 | - * When the device wants to invalidate the pointer it will call | ||
42 | - * memory_region_invalidate_mmio_ptr. | ||
43 | - * | ||
44 | - * @mr: #MemoryRegion to check | ||
45 | - * @addr: address within that region | ||
46 | - * | ||
47 | - * Returns true on success, false otherwise. | ||
48 | - */ | ||
49 | -bool memory_region_request_mmio_ptr(MemoryRegion *mr, hwaddr addr); | ||
50 | - | ||
51 | -/** | ||
52 | - * memory_region_invalidate_mmio_ptr: invalidate the pointer to an mmio | ||
53 | - * previously requested. | ||
54 | - * In the end that means that if something wants to execute from this area it | ||
55 | - * will need to request the pointer again. | ||
56 | - * | ||
57 | - * @mr: #MemoryRegion associated to the pointer. | ||
58 | - * @offset: offset within the memory region | ||
59 | - * @size: size of that area. | ||
60 | - */ | ||
61 | -void memory_region_invalidate_mmio_ptr(MemoryRegion *mr, hwaddr offset, | ||
62 | - unsigned size); | ||
63 | - | ||
64 | /** | ||
65 | * memory_region_dispatch_read: perform a read directly to the specified | ||
66 | * MemoryRegion. | ||
67 | diff --git a/memory.c b/memory.c | ||
68 | index XXXXXXX..XXXXXXX 100644 | ||
69 | --- a/memory.c | ||
70 | +++ b/memory.c | ||
71 | @@ -XXX,XX +XXX,XX @@ | ||
72 | #include "exec/ram_addr.h" | ||
73 | #include "sysemu/kvm.h" | ||
74 | #include "sysemu/sysemu.h" | ||
75 | -#include "hw/misc/mmio_interface.h" | ||
76 | #include "hw/qdev-properties.h" | ||
77 | #include "migration/vmstate.h" | ||
78 | |||
79 | @@ -XXX,XX +XXX,XX @@ void memory_listener_unregister(MemoryListener *listener) | ||
80 | listener->address_space = NULL; | ||
81 | } | ||
82 | |||
83 | -bool memory_region_request_mmio_ptr(MemoryRegion *mr, hwaddr addr) | ||
84 | -{ | ||
85 | - void *host; | ||
86 | - unsigned size = 0; | ||
87 | - unsigned offset = 0; | ||
88 | - Object *new_interface; | ||
89 | - | ||
90 | - if (!mr || !mr->ops->request_ptr) { | ||
91 | - return false; | ||
92 | - } | ||
93 | - | ||
94 | - /* | ||
95 | - * Avoid an update if the request_ptr call | ||
96 | - * memory_region_invalidate_mmio_ptr which seems to be likely when we use | ||
97 | - * a cache. | ||
98 | - */ | ||
99 | - memory_region_transaction_begin(); | ||
100 | - | ||
101 | - host = mr->ops->request_ptr(mr->opaque, addr - mr->addr, &size, &offset); | ||
102 | - | ||
103 | - if (!host || !size) { | ||
104 | - memory_region_transaction_commit(); | ||
105 | - return false; | ||
106 | - } | ||
107 | - | ||
108 | - new_interface = object_new("mmio_interface"); | ||
109 | - qdev_prop_set_uint64(DEVICE(new_interface), "start", offset); | ||
110 | - qdev_prop_set_uint64(DEVICE(new_interface), "end", offset + size - 1); | ||
111 | - qdev_prop_set_bit(DEVICE(new_interface), "ro", true); | ||
112 | - qdev_prop_set_ptr(DEVICE(new_interface), "host_ptr", host); | ||
113 | - qdev_prop_set_ptr(DEVICE(new_interface), "subregion", mr); | ||
114 | - object_property_set_bool(OBJECT(new_interface), true, "realized", NULL); | ||
115 | - | ||
116 | - memory_region_transaction_commit(); | ||
117 | - return true; | ||
118 | -} | ||
119 | - | ||
120 | -typedef struct MMIOPtrInvalidate { | ||
121 | - MemoryRegion *mr; | ||
122 | - hwaddr offset; | ||
123 | - unsigned size; | ||
124 | - int busy; | ||
125 | - int allocated; | ||
126 | -} MMIOPtrInvalidate; | ||
127 | - | ||
128 | -#define MAX_MMIO_INVALIDATE 10 | ||
129 | -static MMIOPtrInvalidate mmio_ptr_invalidate_list[MAX_MMIO_INVALIDATE]; | ||
130 | - | ||
131 | -static void memory_region_do_invalidate_mmio_ptr(CPUState *cpu, | ||
132 | - run_on_cpu_data data) | ||
133 | -{ | ||
134 | - MMIOPtrInvalidate *invalidate_data = (MMIOPtrInvalidate *)data.host_ptr; | ||
135 | - MemoryRegion *mr = invalidate_data->mr; | ||
136 | - hwaddr offset = invalidate_data->offset; | ||
137 | - unsigned size = invalidate_data->size; | ||
138 | - MemoryRegionSection section = memory_region_find(mr, offset, size); | ||
139 | - | ||
140 | - qemu_mutex_lock_iothread(); | ||
141 | - | ||
142 | - /* Reset dirty so this doesn't happen later. */ | ||
143 | - cpu_physical_memory_test_and_clear_dirty(offset, size, 1); | ||
144 | - | ||
145 | - if (section.mr != mr) { | ||
146 | - /* memory_region_find add a ref on section.mr */ | ||
147 | - memory_region_unref(section.mr); | ||
148 | - if (MMIO_INTERFACE(section.mr->owner)) { | ||
149 | - /* We found the interface just drop it. */ | ||
150 | - object_property_set_bool(section.mr->owner, false, "realized", | ||
151 | - NULL); | ||
152 | - object_unref(section.mr->owner); | ||
153 | - object_unparent(section.mr->owner); | ||
154 | - } | ||
155 | - } | ||
156 | - | ||
157 | - qemu_mutex_unlock_iothread(); | ||
158 | - | ||
159 | - if (invalidate_data->allocated) { | ||
160 | - g_free(invalidate_data); | ||
161 | - } else { | ||
162 | - invalidate_data->busy = 0; | ||
163 | - } | ||
164 | -} | ||
165 | - | ||
166 | -void memory_region_invalidate_mmio_ptr(MemoryRegion *mr, hwaddr offset, | ||
167 | - unsigned size) | ||
168 | -{ | ||
169 | - size_t i; | ||
170 | - MMIOPtrInvalidate *invalidate_data = NULL; | ||
171 | - | ||
172 | - for (i = 0; i < MAX_MMIO_INVALIDATE; i++) { | ||
173 | - if (atomic_cmpxchg(&(mmio_ptr_invalidate_list[i].busy), 0, 1) == 0) { | ||
174 | - invalidate_data = &mmio_ptr_invalidate_list[i]; | ||
175 | - break; | ||
176 | - } | ||
177 | - } | ||
178 | - | ||
179 | - if (!invalidate_data) { | ||
180 | - invalidate_data = g_malloc0(sizeof(MMIOPtrInvalidate)); | ||
181 | - invalidate_data->allocated = 1; | ||
182 | - } | ||
183 | - | ||
184 | - invalidate_data->mr = mr; | ||
185 | - invalidate_data->offset = offset; | ||
186 | - invalidate_data->size = size; | ||
187 | - | ||
188 | - async_safe_run_on_cpu(first_cpu, memory_region_do_invalidate_mmio_ptr, | ||
189 | - RUN_ON_CPU_HOST_PTR(invalidate_data)); | ||
190 | -} | ||
191 | - | ||
192 | void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name) | ||
193 | { | ||
194 | memory_region_ref(root); | ||
195 | -- | ||
196 | 2.18.0 | ||
197 | |||
198 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | The mmio_interface device was a purely internal artifact | ||
2 | of the implementation of the memory subsystem's request_ptr | ||
3 | APIs. Now that we have removed those APIs, we can remove | ||
4 | the mmio_interface device too. | ||
5 | 1 | ||
6 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
7 | Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> | ||
8 | Reviewed-by: Alistair Francis <alistair.francis@wdc.com> | ||
9 | Reviewed-by: KONRAD Frederic <frederic.konrad@adacore.com> | ||
10 | Message-id: 20180817114619.22354-4-peter.maydell@linaro.org | ||
11 | --- | ||
12 | hw/misc/Makefile.objs | 1 - | ||
13 | include/hw/misc/mmio_interface.h | 49 ----------- | ||
14 | hw/misc/mmio_interface.c | 135 ------------------------------- | ||
15 | 3 files changed, 185 deletions(-) | ||
16 | delete mode 100644 include/hw/misc/mmio_interface.h | ||
17 | delete mode 100644 hw/misc/mmio_interface.c | ||
18 | |||
19 | diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs | ||
20 | index XXXXXXX..XXXXXXX 100644 | ||
21 | --- a/hw/misc/Makefile.objs | ||
22 | +++ b/hw/misc/Makefile.objs | ||
23 | @@ -XXX,XX +XXX,XX @@ obj-$(CONFIG_PVPANIC) += pvpanic.o | ||
24 | obj-$(CONFIG_HYPERV_TESTDEV) += hyperv_testdev.o | ||
25 | obj-$(CONFIG_AUX) += auxbus.o | ||
26 | obj-$(CONFIG_ASPEED_SOC) += aspeed_scu.o aspeed_sdmc.o | ||
27 | -obj-y += mmio_interface.o | ||
28 | obj-$(CONFIG_MSF2) += msf2-sysreg.o | ||
29 | diff --git a/include/hw/misc/mmio_interface.h b/include/hw/misc/mmio_interface.h | ||
30 | deleted file mode 100644 | ||
31 | index XXXXXXX..XXXXXXX | ||
32 | --- a/include/hw/misc/mmio_interface.h | ||
33 | +++ /dev/null | ||
34 | @@ -XXX,XX +XXX,XX @@ | ||
35 | -/* | ||
36 | - * mmio_interface.h | ||
37 | - * | ||
38 | - * Copyright (C) 2017 : GreenSocs | ||
39 | - * http://www.greensocs.com/ , email: info@greensocs.com | ||
40 | - * | ||
41 | - * Developed by : | ||
42 | - * Frederic Konrad <fred.konrad@greensocs.com> | ||
43 | - * | ||
44 | - * This program is free software; you can redistribute it and/or modify | ||
45 | - * it under the terms of the GNU General Public License as published by | ||
46 | - * the Free Software Foundation, either version 2 of the License, or | ||
47 | - * (at your option)any later version. | ||
48 | - * | ||
49 | - * This program is distributed in the hope that it will be useful, | ||
50 | - * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
51 | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
52 | - * GNU General Public License for more details. | ||
53 | - * | ||
54 | - * You should have received a copy of the GNU General Public License along | ||
55 | - * with this program; if not, see <http://www.gnu.org/licenses/>. | ||
56 | - * | ||
57 | - */ | ||
58 | - | ||
59 | -#ifndef MMIO_INTERFACE_H | ||
60 | -#define MMIO_INTERFACE_H | ||
61 | - | ||
62 | -#include "exec/memory.h" | ||
63 | - | ||
64 | -#define TYPE_MMIO_INTERFACE "mmio_interface" | ||
65 | -#define MMIO_INTERFACE(obj) OBJECT_CHECK(MMIOInterface, (obj), \ | ||
66 | - TYPE_MMIO_INTERFACE) | ||
67 | - | ||
68 | -typedef struct MMIOInterface { | ||
69 | - DeviceState parent_obj; | ||
70 | - | ||
71 | - MemoryRegion *subregion; | ||
72 | - MemoryRegion ram_mem; | ||
73 | - uint64_t start; | ||
74 | - uint64_t end; | ||
75 | - bool ro; | ||
76 | - uint64_t id; | ||
77 | - void *host_ptr; | ||
78 | -} MMIOInterface; | ||
79 | - | ||
80 | -void mmio_interface_map(MMIOInterface *s); | ||
81 | -void mmio_interface_unmap(MMIOInterface *s); | ||
82 | - | ||
83 | -#endif /* MMIO_INTERFACE_H */ | ||
84 | diff --git a/hw/misc/mmio_interface.c b/hw/misc/mmio_interface.c | ||
85 | deleted file mode 100644 | ||
86 | index XXXXXXX..XXXXXXX | ||
87 | --- a/hw/misc/mmio_interface.c | ||
88 | +++ /dev/null | ||
89 | @@ -XXX,XX +XXX,XX @@ | ||
90 | -/* | ||
91 | - * mmio_interface.c | ||
92 | - * | ||
93 | - * Copyright (C) 2017 : GreenSocs | ||
94 | - * http://www.greensocs.com/ , email: info@greensocs.com | ||
95 | - * | ||
96 | - * Developed by : | ||
97 | - * Frederic Konrad <fred.konrad@greensocs.com> | ||
98 | - * | ||
99 | - * This program is free software; you can redistribute it and/or modify | ||
100 | - * it under the terms of the GNU General Public License as published by | ||
101 | - * the Free Software Foundation, either version 2 of the License, or | ||
102 | - * (at your option)any later version. | ||
103 | - * | ||
104 | - * This program is distributed in the hope that it will be useful, | ||
105 | - * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
106 | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
107 | - * GNU General Public License for more details. | ||
108 | - * | ||
109 | - * You should have received a copy of the GNU General Public License along | ||
110 | - * with this program; if not, see <http://www.gnu.org/licenses/>. | ||
111 | - * | ||
112 | - */ | ||
113 | - | ||
114 | -#include "qemu/osdep.h" | ||
115 | -#include "qemu/log.h" | ||
116 | -#include "trace.h" | ||
117 | -#include "hw/qdev-properties.h" | ||
118 | -#include "hw/misc/mmio_interface.h" | ||
119 | -#include "qapi/error.h" | ||
120 | - | ||
121 | -#ifndef DEBUG_MMIO_INTERFACE | ||
122 | -#define DEBUG_MMIO_INTERFACE 0 | ||
123 | -#endif | ||
124 | - | ||
125 | -static uint64_t mmio_interface_counter; | ||
126 | - | ||
127 | -#define DPRINTF(fmt, ...) do { \ | ||
128 | - if (DEBUG_MMIO_INTERFACE) { \ | ||
129 | - qemu_log("mmio_interface: 0x%" PRIX64 ": " fmt, s->id, ## __VA_ARGS__);\ | ||
130 | - } \ | ||
131 | -} while (0) | ||
132 | - | ||
133 | -static void mmio_interface_init(Object *obj) | ||
134 | -{ | ||
135 | - MMIOInterface *s = MMIO_INTERFACE(obj); | ||
136 | - | ||
137 | - if (DEBUG_MMIO_INTERFACE) { | ||
138 | - s->id = mmio_interface_counter++; | ||
139 | - } | ||
140 | - | ||
141 | - DPRINTF("interface created\n"); | ||
142 | - s->host_ptr = 0; | ||
143 | - s->subregion = 0; | ||
144 | -} | ||
145 | - | ||
146 | -static void mmio_interface_realize(DeviceState *dev, Error **errp) | ||
147 | -{ | ||
148 | - MMIOInterface *s = MMIO_INTERFACE(dev); | ||
149 | - | ||
150 | - DPRINTF("realize from 0x%" PRIX64 " to 0x%" PRIX64 " map host pointer" | ||
151 | - " %p\n", s->start, s->end, s->host_ptr); | ||
152 | - | ||
153 | - if (!s->host_ptr) { | ||
154 | - error_setg(errp, "host_ptr property must be set"); | ||
155 | - return; | ||
156 | - } | ||
157 | - | ||
158 | - if (!s->subregion) { | ||
159 | - error_setg(errp, "subregion property must be set"); | ||
160 | - return; | ||
161 | - } | ||
162 | - | ||
163 | - memory_region_init_ram_ptr(&s->ram_mem, OBJECT(s), "ram", | ||
164 | - s->end - s->start + 1, s->host_ptr); | ||
165 | - memory_region_set_readonly(&s->ram_mem, s->ro); | ||
166 | - memory_region_add_subregion(s->subregion, s->start, &s->ram_mem); | ||
167 | -} | ||
168 | - | ||
169 | -static void mmio_interface_unrealize(DeviceState *dev, Error **errp) | ||
170 | -{ | ||
171 | - MMIOInterface *s = MMIO_INTERFACE(dev); | ||
172 | - | ||
173 | - DPRINTF("unrealize from 0x%" PRIX64 " to 0x%" PRIX64 " map host pointer" | ||
174 | - " %p\n", s->start, s->end, s->host_ptr); | ||
175 | - memory_region_del_subregion(s->subregion, &s->ram_mem); | ||
176 | -} | ||
177 | - | ||
178 | -static void mmio_interface_finalize(Object *obj) | ||
179 | -{ | ||
180 | - MMIOInterface *s = MMIO_INTERFACE(obj); | ||
181 | - | ||
182 | - DPRINTF("finalize from 0x%" PRIX64 " to 0x%" PRIX64 " map host pointer" | ||
183 | - " %p\n", s->start, s->end, s->host_ptr); | ||
184 | - object_unparent(OBJECT(&s->ram_mem)); | ||
185 | -} | ||
186 | - | ||
187 | -static Property mmio_interface_properties[] = { | ||
188 | - DEFINE_PROP_UINT64("start", MMIOInterface, start, 0), | ||
189 | - DEFINE_PROP_UINT64("end", MMIOInterface, end, 0), | ||
190 | - DEFINE_PROP_PTR("host_ptr", MMIOInterface, host_ptr), | ||
191 | - DEFINE_PROP_BOOL("ro", MMIOInterface, ro, false), | ||
192 | - DEFINE_PROP_MEMORY_REGION("subregion", MMIOInterface, subregion), | ||
193 | - DEFINE_PROP_END_OF_LIST(), | ||
194 | -}; | ||
195 | - | ||
196 | -static void mmio_interface_class_init(ObjectClass *oc, void *data) | ||
197 | -{ | ||
198 | - DeviceClass *dc = DEVICE_CLASS(oc); | ||
199 | - | ||
200 | - dc->realize = mmio_interface_realize; | ||
201 | - dc->unrealize = mmio_interface_unrealize; | ||
202 | - dc->props = mmio_interface_properties; | ||
203 | - /* Reason: pointer property "host_ptr", and this device | ||
204 | - * is an implementation detail of the memory subsystem, | ||
205 | - * not intended to be created directly by the user. | ||
206 | - */ | ||
207 | - dc->user_creatable = false; | ||
208 | -} | ||
209 | - | ||
210 | -static const TypeInfo mmio_interface_info = { | ||
211 | - .name = TYPE_MMIO_INTERFACE, | ||
212 | - .parent = TYPE_DEVICE, | ||
213 | - .instance_size = sizeof(MMIOInterface), | ||
214 | - .instance_init = mmio_interface_init, | ||
215 | - .instance_finalize = mmio_interface_finalize, | ||
216 | - .class_init = mmio_interface_class_init, | ||
217 | -}; | ||
218 | - | ||
219 | -static void mmio_interface_register_types(void) | ||
220 | -{ | ||
221 | - type_register_static(&mmio_interface_info); | ||
222 | -} | ||
223 | - | ||
224 | -type_init(mmio_interface_register_types) | ||
225 | -- | ||
226 | 2.18.0 | ||
227 | |||
228 | diff view generated by jsdifflib |
Deleted patch | |||
---|---|---|---|
1 | A bug in the handling of the register address decode logic | ||
2 | for the PL08x meant that we were incorrectly treating | ||
3 | accesses to the DMA channel registers (DMACCxSrcAddr, | ||
4 | DMACCxDestaddr, DMACCxLLI, DMACCxControl, DMACCxConfiguration) | ||
5 | as bad offsets. Fix this long-standing bug. | ||
6 | 1 | ||
7 | Fixes: https://bugs.launchpad.net/qemu/+bug/1637974 | ||
8 | Signed-off-by: Peter Maydell <peter.maydell@linaro.org> | ||
9 | Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> | ||
10 | --- | ||
11 | hw/dma/pl080.c | 5 +++-- | ||
12 | 1 file changed, 3 insertions(+), 2 deletions(-) | ||
13 | |||
14 | diff --git a/hw/dma/pl080.c b/hw/dma/pl080.c | ||
15 | index XXXXXXX..XXXXXXX 100644 | ||
16 | --- a/hw/dma/pl080.c | ||
17 | +++ b/hw/dma/pl080.c | ||
18 | @@ -XXX,XX +XXX,XX @@ static uint64_t pl080_read(void *opaque, hwaddr offset, | ||
19 | i = (offset & 0xe0) >> 5; | ||
20 | if (i >= s->nchannels) | ||
21 | goto bad_offset; | ||
22 | - switch (offset >> 2) { | ||
23 | + switch ((offset >> 2) & 7) { | ||
24 | case 0: /* SrcAddr */ | ||
25 | return s->chan[i].src; | ||
26 | case 1: /* DestAddr */ | ||
27 | @@ -XXX,XX +XXX,XX @@ static void pl080_write(void *opaque, hwaddr offset, | ||
28 | i = (offset & 0xe0) >> 5; | ||
29 | if (i >= s->nchannels) | ||
30 | goto bad_offset; | ||
31 | - switch (offset >> 2) { | ||
32 | + switch ((offset >> 2) & 7) { | ||
33 | case 0: /* SrcAddr */ | ||
34 | s->chan[i].src = value; | ||
35 | break; | ||
36 | @@ -XXX,XX +XXX,XX @@ static void pl080_write(void *opaque, hwaddr offset, | ||
37 | pl080_run(s); | ||
38 | break; | ||
39 | } | ||
40 | + return; | ||
41 | } | ||
42 | switch (offset >> 2) { | ||
43 | case 2: /* IntTCClear */ | ||
44 | -- | ||
45 | 2.18.0 | ||
46 | |||
47 | diff view generated by jsdifflib |