Patches for rc1: nothing major, just some minor bugfixes and

code cleanups.

The following changes since commit f7e1914adad8885a5d4c70239ab90d901ed97e9f:

Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20201109' into staging (2020-11-10 09:24:56 +0000)

https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20201110

for you to fetch changes up to b6c56c8a9a4064ea783f352f43c5df6231a110fa:

target/arm/translate-neon.c: Handle VTBL UNDEF case before VFP access check (2020-11-10 11:03:48 +0000)

* hw/arm/Kconfig: ARM_V7M depends on PTIMER

* Minor coding style fixes

* docs: add some notes on the sbsa-ref machine

* hw/arm/virt: Remove dependency on Cortex-A15 MPCore peripherals

* target/arm: Fix neon VTBL/VTBX for len > 1

* hw/arm/armsse: Correct expansion MPC interrupt lines

* hw/misc/stm32f2xx_syscfg: Remove extraneous IRQ

* hw/arm/nseries: Remove invalid/unnecessary n8x0_uart_setup()

* hw/arm/musicpal: Don't connect two qemu_irqs directly to the same input

* hw/arm/musicpal: Only use qdev_get_gpio_in() when necessary

* hw/arm/nseries: Check return value from load_image_targphys()

* tests/qtest/npcm7xx_rng-test: count runs properly

* target/arm/translate-neon.c: Handle VTBL UNDEF case before VFP access check

Alex Bennée (1):

docs: add some notes on the sbsa-ref machine

AlexChen (1):

ssi: Fix bad printf format specifiers

Andrew Jones (1):

hw/arm/Kconfig: ARM_V7M depends on PTIMER

Havard Skinnemoen (1):

tests/qtest/npcm7xx_rng-test: count runs properly

Peter Maydell (2):

hw/arm/nseries: Check return value from load_image_targphys()

target/arm/translate-neon.c: Handle VTBL UNDEF case before VFP access check

Philippe Mathieu-Daudé (6):

hw/arm/virt: Remove dependency on Cortex-A15 MPCore peripherals

hw/arm/armsse: Correct expansion MPC interrupt lines

hw/misc/stm32f2xx_syscfg: Remove extraneous IRQ

hw/arm/nseries: Remove invalid/unnecessary n8x0_uart_setup()

hw/arm/musicpal: Don't connect two qemu_irqs directly to the same input

hw/arm/musicpal: Only use qdev_get_gpio_in() when necessary

Richard Henderson (1):

target/arm: Fix neon VTBL/VTBX for len > 1

Xinhao Zhang (3):

target/arm: add spaces around operator

target/arm: Don't use '#' flag of printf format

target/arm: add space before the open parenthesis '('

docs/system/arm/sbsa.rst | 32 ++++++++++++++++++++++

docs/system/target-arm.rst | 1 +

include/hw/misc/stm32f2xx_syscfg.h | 2 --

target/arm/helper.h | 2 +-

hw/arm/armsse.c | 3 +-

hw/arm/musicpal.c | 40 +++++++++++++++++----------

hw/arm/nseries.c | 26 ++++++++----------

hw/arm/stm32f205_soc.c | 1 -

hw/misc/stm32f2xx_syscfg.c | 2 --

hw/ssi/imx_spi.c | 2 +-

hw/ssi/xilinx_spi.c | 2 +-

target/arm/arch_dump.c | 8 +++---

target/arm/arm-semi.c | 8 +++---

target/arm/helper.c | 2 +-

target/arm/op_helper.c | 23 +++++++++-------

target/arm/translate-a64.c | 4 +--

target/arm/translate.c | 2 +-

tests/qtest/npcm7xx_rng-test.c | 2 +-

hw/arm/Kconfig | 3 +-

target/arm/translate-neon.c.inc | 56 ++++++++++++++------------------------

20 files changed, 123 insertions(+), 98 deletions(-)

create mode 100644 docs/system/arm/sbsa.rst

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

We don't need to fill the full pic[] array if we only use

few of the interrupt lines. Directly call qdev_get_gpio_in()

when necessary.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Message-id: 20201107193403.436146-6-f4bug@amsat.org

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/musicpal.c | 25 +++++++++++++------------

1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c

index XXXXXXX..XXXXXXX 100644

--- a/hw/arm/musicpal.c

+++ b/hw/arm/musicpal.c

@@ -XXX,XX +XXX,XX @@ static struct arm_boot_info musicpal_binfo = {

static void musicpal_init(MachineState *machine)

{

ARMCPU *cpu;

- qemu_irq pic[32];

DeviceState *dev;

+ DeviceState *pic;

DeviceState *uart_orgate;

DeviceState *i2c_dev;

DeviceState *lcd_dev;

@@ -XXX,XX +XXX,XX @@ static void musicpal_init(MachineState *machine)

&error_fatal);

memory_region_add_subregion(address_space_mem, MP_SRAM_BASE, sram);

- dev = sysbus_create_simple(TYPE_MV88W8618_PIC, MP_PIC_BASE,

+ pic = sysbus_create_simple(TYPE_MV88W8618_PIC, MP_PIC_BASE,

qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));

- for (i = 0; i < 32; i++) {

- pic[i] = qdev_get_gpio_in(dev, i);

- }

- sysbus_create_varargs(TYPE_MV88W8618_PIT, MP_PIT_BASE, pic[MP_TIMER1_IRQ],

- pic[MP_TIMER2_IRQ], pic[MP_TIMER3_IRQ],

- pic[MP_TIMER4_IRQ], NULL);

+ sysbus_create_varargs(TYPE_MV88W8618_PIT, MP_PIT_BASE,

+ qdev_get_gpio_in(pic, MP_TIMER1_IRQ),

+ qdev_get_gpio_in(pic, MP_TIMER2_IRQ),

+ qdev_get_gpio_in(pic, MP_TIMER3_IRQ),

+ qdev_get_gpio_in(pic, MP_TIMER4_IRQ), NULL);

/* Logically OR both UART IRQs together */

uart_orgate = DEVICE(object_new(TYPE_OR_IRQ));

object_property_set_int(OBJECT(uart_orgate), "num-lines", 2, &error_fatal);

qdev_realize_and_unref(uart_orgate, NULL, &error_fatal);

- qdev_connect_gpio_out(DEVICE(uart_orgate), 0, pic[MP_UART_SHARED_IRQ]);

+ qdev_connect_gpio_out(DEVICE(uart_orgate), 0,

+ qdev_get_gpio_in(pic, MP_UART_SHARED_IRQ));

serial_mm_init(address_space_mem, MP_UART1_BASE, 2,

qdev_get_gpio_in(uart_orgate, 0),

@@ -XXX,XX +XXX,XX @@ static void musicpal_init(MachineState *machine)

OBJECT(get_system_memory()), &error_fatal);

sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);

sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, MP_ETH_BASE);

- sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[MP_ETH_IRQ]);

+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,

+ qdev_get_gpio_in(pic, MP_ETH_IRQ));

sysbus_create_simple("mv88w8618_wlan", MP_WLAN_BASE, NULL);

sysbus_create_simple(TYPE_MUSICPAL_MISC, MP_MISC_BASE, NULL);

dev = sysbus_create_simple(TYPE_MUSICPAL_GPIO, MP_GPIO_BASE,

- pic[MP_GPIO_IRQ]);

+ qdev_get_gpio_in(pic, MP_GPIO_IRQ));

i2c_dev = sysbus_create_simple("gpio_i2c", -1, NULL);

i2c = (I2CBus *)qdev_get_child_bus(i2c_dev, "i2c");

@@ -XXX,XX +XXX,XX @@ static void musicpal_init(MachineState *machine)

NULL);

sysbus_realize_and_unref(s, &error_fatal);

sysbus_mmio_map(s, 0, MP_AUDIO_BASE);

- sysbus_connect_irq(s, 0, pic[MP_AUDIO_IRQ]);

+ sysbus_connect_irq(s, 0, qdev_get_gpio_in(pic, MP_AUDIO_IRQ));

musicpal_binfo.ram_size = MP_RAM_DEFAULT_SIZE;

arm_load_kernel(cpu, machine, &musicpal_binfo);

2.20.1

The helper function did not get updated when we reorganized

the vector register file for SVE. Since then, the neon dregs

are non-sequential and cannot be simply indexed.

[PMM: use aa32_vfp_dreg() rather than opencoding]

Message-id: 20201105171126.88014-1-richard.henderson@linaro.org

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/helper.h | 2 +-

target/arm/op_helper.c | 23 +++++++++--------

target/arm/translate-neon.c.inc | 44 +++++++++++----------------------

3 files changed, 29 insertions(+), 40 deletions(-)

@@ -XXX,XX +XXX,XX @@ DEF_HELPER_FLAGS_2(rsqrte_f32, TCG_CALL_NO_RWG, f32, f32, ptr)

DEF_HELPER_FLAGS_2(rsqrte_f64, TCG_CALL_NO_RWG, f64, f64, ptr)

DEF_HELPER_FLAGS_1(recpe_u32, TCG_CALL_NO_RWG, i32, i32)

DEF_HELPER_FLAGS_1(rsqrte_u32, TCG_CALL_NO_RWG, i32, i32)

-DEF_HELPER_FLAGS_4(neon_tbl, TCG_CALL_NO_RWG, i32, i32, i32, ptr, i32)

+DEF_HELPER_FLAGS_4(neon_tbl, TCG_CALL_NO_RWG, i64, env, i32, i64, i64)

DEF_HELPER_3(shl_cc, i32, env, i32, i32)

DEF_HELPER_3(shr_cc, i32, env, i32, i32)

diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c

index XXXXXXX..XXXXXXX 100644

--- a/target/arm/op_helper.c

+++ b/target/arm/op_helper.c

@@ -XXX,XX +XXX,XX @@ void raise_exception_ra(CPUARMState *env, uint32_t excp, uint32_t syndrome,

cpu_loop_exit_restore(cs, ra);

}

-uint32_t HELPER(neon_tbl)(uint32_t ireg, uint32_t def, void *vn,

- uint32_t maxindex)

+uint64_t HELPER(neon_tbl)(CPUARMState *env, uint32_t desc,

+ uint64_t ireg, uint64_t def)

{

- uint32_t val, shift;

- uint64_t *table = vn;

+ uint64_t tmp, val = 0;

+ uint32_t maxindex = ((desc & 3) + 1) * 8;

+ uint32_t base_reg = desc >> 2;

+ uint32_t shift, index, reg;

- val = 0;

- for (shift = 0; shift < 32; shift += 8) {

- uint32_t index = (ireg >> shift) & 0xff;

+ for (shift = 0; shift < 64; shift += 8) {

+ index = (ireg >> shift) & 0xff;

if (index < maxindex) {

- uint32_t tmp = (table[index >> 3] >> ((index & 7) << 3)) & 0xff;

- val |= tmp << shift;

+ reg = base_reg + (index >> 3);

+ tmp = *aa32_vfp_dreg(env, reg);

+ tmp = ((tmp >> ((index & 7) << 3)) & 0xff) << shift;

} else {

- val |= def & (0xff << shift);

+ tmp = def & (0xffull << shift);

}

+ val |= tmp;

}

return val;

}

diff --git a/target/arm/translate-neon.c.inc b/target/arm/translate-neon.c.inc

index XXXXXXX..XXXXXXX 100644

--- a/target/arm/translate-neon.c.inc

+++ b/target/arm/translate-neon.c.inc

@@ -XXX,XX +XXX,XX @@ static bool trans_VEXT(DisasContext *s, arg_VEXT *a)

static bool trans_VTBL(DisasContext *s, arg_VTBL *a)

{

- int n;

- TCGv_i32 tmp, tmp2, tmp3, tmp4;

- TCGv_ptr ptr1;

+ TCGv_i64 val, def;

+ TCGv_i32 desc;

if (!arm_dc_feature(s, ARM_FEATURE_NEON)) {

return false;

@@ -XXX,XX +XXX,XX @@ static bool trans_VTBL(DisasContext *s, arg_VTBL *a)

return true;

}

- n = a->len + 1;

- if ((a->vn + n) > 32) {

+ if ((a->vn + a->len + 1) > 32) {

/*

* This is UNPREDICTABLE; we choose to UNDEF to avoid the

* helper function running off the end of the register file.

*/

return false;

}

- n <<= 3;

- tmp = tcg_temp_new_i32();

- if (a->op) {

- read_neon_element32(tmp, a->vd, 0, MO_32);

- } else {

- tcg_gen_movi_i32(tmp, 0);

- }

- tmp2 = tcg_temp_new_i32();

- read_neon_element32(tmp2, a->vm, 0, MO_32);

- ptr1 = vfp_reg_ptr(true, a->vn);

- tmp4 = tcg_const_i32(n);

- gen_helper_neon_tbl(tmp2, tmp2, tmp, ptr1, tmp4);

+ desc = tcg_const_i32((a->vn << 2) | a->len);

+ def = tcg_temp_new_i64();

if (a->op) {

- read_neon_element32(tmp, a->vd, 1, MO_32);

+ read_neon_element64(def, a->vd, 0, MO_64);

} else {

- tcg_gen_movi_i32(tmp, 0);

+ tcg_gen_movi_i64(def, 0);

}

- tmp3 = tcg_temp_new_i32();

- read_neon_element32(tmp3, a->vm, 1, MO_32);

- gen_helper_neon_tbl(tmp3, tmp3, tmp, ptr1, tmp4);

- tcg_temp_free_i32(tmp);

- tcg_temp_free_i32(tmp4);

- tcg_temp_free_ptr(ptr1);

+ val = tcg_temp_new_i64();

+ read_neon_element64(val, a->vm, 0, MO_64);

- write_neon_element32(tmp2, a->vd, 0, MO_32);

- write_neon_element32(tmp3, a->vd, 1, MO_32);

- tcg_temp_free_i32(tmp2);

- tcg_temp_free_i32(tmp3);

+ gen_helper_neon_tbl(val, cpu_env, desc, val, def);

+ write_neon_element64(val, a->vd, 0, MO_64);

+

+ tcg_temp_free_i64(def);

+ tcg_temp_free_i64(val);

+ tcg_temp_free_i32(desc);

return true;

}

2.20.1

The nseries machines have a codepath that allows them to load a

secondary bootloader. This code wasn't checking that the

load_image_targphys() succeeded. Check the return value and report

the error to the user.

While we're in the vicinity, fix the comment style of the

comment documenting what this image load is doing.

Fixes: Coverity CID 1192904

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Message-id: 20201103114918.11807-1-peter.maydell@linaro.org

hw/arm/nseries.c | 15 +++++++++++----

1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c

--- a/hw/arm/nseries.c

+++ b/hw/arm/nseries.c

@@ -XXX,XX +XXX,XX @@ static void n8x0_init(MachineState *machine,

/* No, wait, better start at the ROM. */

s->mpu->cpu->env.regs[15] = OMAP2_Q2_BASE + 0x400000;

- /* This is intended for loading the `secondary.bin' program from

+ /*

+ * This is intended for loading the `secondary.bin' program from

* Nokia images (the NOLO bootloader). The entry point seems

* to be at OMAP2_Q2_BASE + 0x400000.

*

@@ -XXX,XX +XXX,XX @@ static void n8x0_init(MachineState *machine,

* for them the entry point needs to be set to OMAP2_SRAM_BASE.

*

* The code above is for loading the `zImage' file from Nokia

- * images. */

- load_image_targphys(option_rom[0].name, OMAP2_Q2_BASE + 0x400000,

- machine->ram_size - 0x400000);

+ * images.

+ */

+ if (load_image_targphys(option_rom[0].name,

+ OMAP2_Q2_BASE + 0x400000,

+ machine->ram_size - 0x400000) < 0) {

+ error_report("Failed to load secondary bootloader %s",

+ option_rom[0].name);

+ exit(EXIT_FAILURE);

+ }

n800_setup_nolo_tags(nolo_tags);

cpu_physical_memory_write(OMAP2_SRAM_BASE, nolo_tags, 0x10000);

2.20.1

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

omap2420_mpu_init() introduced in commit 827df9f3c5f ("Add basic

OMAP2 chip support") takes care of creating the 3 UARTs.

Then commit 58a26b477e9 ("Emulate a serial bluetooth HCI with H4+

extensions and attach to n8x0's UART") added n8x0_uart_setup()

which create the UART and connects it to an IRQ output,

overwritting the existing peripheral and its IRQ connection.

This is incorrect.

Fortunately we don't need to fix this, because commit 6da68df7f9b

("hw/arm/nseries: Replace the bluetooth chardev with a "null"

chardev") removed the use of this peripheral. We can simply

remove the code.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Message-id: 20201107193403.436146-4-f4bug@amsat.org

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/nseries.c | 11 -----------

1 file changed, 11 deletions(-)

diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c

--- a/hw/arm/nseries.c

+++ b/hw/arm/nseries.c

@@ -XXX,XX +XXX,XX @@ static void n8x0_cbus_setup(struct n800_s *s)

cbus_attach(cbus, s->tahvo = tahvo_init(tahvo_irq, 1));

-static void n8x0_uart_setup(struct n800_s *s)

-{

- Chardev *radio = qemu_chr_new("bt-dummy-uart", "null", NULL);

- /*

- * Note: We used to connect N8X0_BT_RESET_GPIO and N8X0_BT_WKUP_GPIO

- * here, but this code has been removed with the bluetooth backend.

- */

- omap_uart_attach(s->mpu->uart[BT_UART], radio);

-}

-

static void n8x0_usb_setup(struct n800_s *s)

SysBusDevice *dev;

@@ -XXX,XX +XXX,XX @@ static void n8x0_init(MachineState *machine,

n8x0_spi_setup(s);

n8x0_dss_setup(s);

n8x0_cbus_setup(s);

- n8x0_uart_setup(s);

if (machine_usb(machine)) {

n8x0_usb_setup(s);

2.20.1

From: Xinhao Zhang <zhangxinhao1@huawei.com>

Fix code style. Don't use '#' flag of printf format ('%#') in

format strings, use '0x' prefix instead

Signed-off-by: Xinhao Zhang <zhangxinhao1@huawei.com>

Signed-off-by: Kai Deng <dengkai1@huawei.com>

Message-id: 20201103114529.638233-2-zhangxinhao1@huawei.com

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/translate-a64.c | 4 ++--

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c

--- a/target/arm/translate-a64.c

+++ b/target/arm/translate-a64.c

@@ -XXX,XX +XXX,XX @@ static void disas_simd_three_reg_same_fp16(DisasContext *s, uint32_t insn)

gen_helper_advsimd_acgt_f16(tcg_res, tcg_op1, tcg_op2, fpst);

break;

default:

- fprintf(stderr, "%s: insn %#04x, fpop %#2x @ %#" PRIx64 "\n",

+ fprintf(stderr, "%s: insn 0x%04x, fpop 0x%2x @ 0x%" PRIx64 "\n",

__func__, insn, fpopcode, s->pc_curr);

g_assert_not_reached();

}

@@ -XXX,XX +XXX,XX @@ static void disas_simd_two_reg_misc_fp16(DisasContext *s, uint32_t insn)

case 0x7f: /* FSQRT (vector) */

break;

default:

- fprintf(stderr, "%s: insn %#04x fpop %#2x\n", __func__, insn, fpop);

+ fprintf(stderr, "%s: insn 0x%04x fpop 0x%2x\n", __func__, insn, fpop);

g_assert_not_reached();

}

2.20.1

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

The MusicPal board code connects both of the IRQ outputs of the UART

to the same INTC qemu_irq. Connecting two qemu_irqs outputs directly

to the same input is not valid as it produces subtly wrong behaviour

(for instance if both the IRQ lines are high, and then one goes

low, the INTC input will see this as a high-to-low transition

even though the second IRQ line should still be holding it high).

This kind of wiring needs an explicitly created OR gate; add one.

Inspired-by: Peter Maydell <peter.maydell@linaro.org>

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Message-id: 20201107193403.436146-5-f4bug@amsat.org

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/musicpal.c | 17 +++++++++++++----

hw/arm/Kconfig | 1 +

2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/hw/arm/musicpal.c b/hw/arm/musicpal.c

--- a/hw/arm/musicpal.c

+++ b/hw/arm/musicpal.c

@@ -XXX,XX +XXX,XX @@

#include "ui/console.h"

#include "hw/i2c/i2c.h"

#include "hw/irq.h"

+#include "hw/or-irq.h"

#include "hw/audio/wm8750.h"

#include "sysemu/block-backend.h"

#include "sysemu/runstate.h"

@@ -XXX,XX +XXX,XX @@

#define MP_TIMER4_IRQ 7

#define MP_EHCI_IRQ 8

#define MP_ETH_IRQ 9

-#define MP_UART1_IRQ 11

-#define MP_UART2_IRQ 11

+#define MP_UART_SHARED_IRQ 11

#define MP_GPIO_IRQ 12

#define MP_RTC_IRQ 28

#define MP_AUDIO_IRQ 30

@@ -XXX,XX +XXX,XX @@ static void musicpal_init(MachineState *machine)

ARMCPU *cpu;

qemu_irq pic[32];

DeviceState *dev;

+ DeviceState *uart_orgate;

DeviceState *i2c_dev;

DeviceState *lcd_dev;

DeviceState *key_dev;

@@ -XXX,XX +XXX,XX @@ static void musicpal_init(MachineState *machine)

pic[MP_TIMER2_IRQ], pic[MP_TIMER3_IRQ],

pic[MP_TIMER4_IRQ], NULL);

- serial_mm_init(address_space_mem, MP_UART1_BASE, 2, pic[MP_UART1_IRQ],

+ /* Logically OR both UART IRQs together */

+ uart_orgate = DEVICE(object_new(TYPE_OR_IRQ));

+ object_property_set_int(OBJECT(uart_orgate), "num-lines", 2, &error_fatal);

+ qdev_realize_and_unref(uart_orgate, NULL, &error_fatal);

+ qdev_connect_gpio_out(DEVICE(uart_orgate), 0, pic[MP_UART_SHARED_IRQ]);

+

+ serial_mm_init(address_space_mem, MP_UART1_BASE, 2,

+ qdev_get_gpio_in(uart_orgate, 0),

1825000, serial_hd(0), DEVICE_NATIVE_ENDIAN);

- serial_mm_init(address_space_mem, MP_UART2_BASE, 2, pic[MP_UART2_IRQ],

+ serial_mm_init(address_space_mem, MP_UART2_BASE, 2,

+ qdev_get_gpio_in(uart_orgate, 1),

1825000, serial_hd(1), DEVICE_NATIVE_ENDIAN);

/* Register flash */

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig

index XXXXXXX..XXXXXXX 100644

--- a/hw/arm/Kconfig

+++ b/hw/arm/Kconfig

@@ -XXX,XX +XXX,XX @@ config MUSCA

config MUSICPAL

bool

+ select OR_IRQ

select BITBANG_I2C

select MARVELL_88W8618

select PTIMER

2.20.1

From: Havard Skinnemoen <hskinnemoen@google.com>

The number of runs is equal to the number of 0-1 and 1-0 transitions,

plus one. Currently, it's counting the number of times these transitions

do _not_ happen, plus one.

Source:

https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-22r1a.pdf

section 2.3.4 point (3).

Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>

Message-id: 20201103011457.2959989-2-hskinnemoen@google.com

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

---

tests/qtest/npcm7xx_rng-test.c | 2 +-

1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/qtest/npcm7xx_rng-test.c b/tests/qtest/npcm7xx_rng-test.c

--- a/tests/qtest/npcm7xx_rng-test.c

+++ b/tests/qtest/npcm7xx_rng-test.c

@@ -XXX,XX +XXX,XX @@ static double calc_runs_p(const unsigned long *buf, unsigned int nr_bits)

pi = (double)nr_ones / nr_bits;

for (k = 0; k < nr_bits - 1; k++) {

- vn_obs += !(test_bit(k, buf) ^ test_bit(k + 1, buf));

+ vn_obs += (test_bit(k, buf) ^ test_bit(k + 1, buf));

}

vn_obs += 1;

2.20.1

Checks for UNDEF cases should go before the "is VFP enabled?" access

check, except in special cases. Move a stray UNDEF check in the VTBL

trans function up above the access check.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

Message-id: 20201109145324.2859-1-peter.maydell@linaro.org

target/arm/translate-neon.c.inc | 8 ++++----

1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/target/arm/translate-neon.c.inc b/target/arm/translate-neon.c.inc

--- a/target/arm/translate-neon.c.inc

+++ b/target/arm/translate-neon.c.inc

@@ -XXX,XX +XXX,XX @@ static bool trans_VTBL(DisasContext *s, arg_VTBL *a)

return false;

}

- if (!vfp_access_check(s)) {

- return true;

- }

-

if ((a->vn + a->len + 1) > 32) {

/*

* This is UNPREDICTABLE; we choose to UNDEF to avoid the

@@ -XXX,XX +XXX,XX @@ static bool trans_VTBL(DisasContext *s, arg_VTBL *a)

return false;

}

+ if (!vfp_access_check(s)) {

+ return true;

+ }

+

desc = tcg_const_i32((a->vn << 2) | a->len);

def = tcg_temp_new_i64();

if (a->op) {

2.20.1

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

The system configuration controller (SYSCFG) doesn't have

any output IRQ (and the INTC input #71 belongs to the UART6).

Remove the invalid code.

Fixes: db635521a02 ("stm32f205: Add the stm32f205 SoC")

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Message-id: 20201107193403.436146-3-f4bug@amsat.org

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

include/hw/misc/stm32f2xx_syscfg.h | 2 --

hw/arm/stm32f205_soc.c | 1 -

hw/misc/stm32f2xx_syscfg.c | 2 --

3 files changed, 5 deletions(-)

diff --git a/include/hw/misc/stm32f2xx_syscfg.h b/include/hw/misc/stm32f2xx_syscfg.h

--- a/include/hw/misc/stm32f2xx_syscfg.h

+++ b/include/hw/misc/stm32f2xx_syscfg.h

@@ -XXX,XX +XXX,XX @@ struct STM32F2XXSyscfgState {

uint32_t syscfg_exticr3;

uint32_t syscfg_exticr4;

uint32_t syscfg_cmpcr;

- qemu_irq irq;

};

#endif /* HW_STM32F2XX_SYSCFG_H */

diff --git a/hw/arm/stm32f205_soc.c b/hw/arm/stm32f205_soc.c

index XXXXXXX..XXXXXXX 100644

--- a/hw/arm/stm32f205_soc.c

+++ b/hw/arm/stm32f205_soc.c

@@ -XXX,XX +XXX,XX @@ static void stm32f205_soc_realize(DeviceState *dev_soc, Error **errp)

}

busdev = SYS_BUS_DEVICE(dev);

sysbus_mmio_map(busdev, 0, 0x40013800);

- sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, 71));

/* Attach UART (uses USART registers) and USART controllers */

for (i = 0; i < STM_NUM_USARTS; i++) {

diff --git a/hw/misc/stm32f2xx_syscfg.c b/hw/misc/stm32f2xx_syscfg.c

index XXXXXXX..XXXXXXX 100644

--- a/hw/misc/stm32f2xx_syscfg.c

+++ b/hw/misc/stm32f2xx_syscfg.c

@@ -XXX,XX +XXX,XX @@ static void stm32f2xx_syscfg_init(Object *obj)

{

STM32F2XXSyscfgState *s = STM32F2XX_SYSCFG(obj);

- sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->irq);

-

memory_region_init_io(&s->mmio, obj, &stm32f2xx_syscfg_ops, s,

TYPE_STM32F2XX_SYSCFG, 0x400);

sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->mmio);

2.20.1

From: Andrew Jones <drjones@redhat.com>

commit 32bd322a0134 ("hw/timer/armv7m_systick: Rewrite to use ptimers")

changed armv7m_systick to build on ptimers. Make sure we have ptimers

in the build when building armv7m_systick.

Signed-off-by: Andrew Jones <drjones@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Message-id: 20201104103343.30392-1-drjones@redhat.com

hw/arm/Kconfig | 1 +

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig

--- a/hw/arm/Kconfig

+++ b/hw/arm/Kconfig

@@ -XXX,XX +XXX,XX @@ config ZYNQ

config ARM_V7M

+ select PTIMER

config ALLWINNER_A10

2.20.1

From: Philippe Mathieu-Daudé <f4bug@amsat.org>

We can use one MPC per SRAM bank, but we currently only wire the

IRQ from the first expansion MPC to the IRQ splitter. Fix that.

Fixes: bb75e16d5e6 ("hw/arm/iotkit: Wire up MPC interrupt lines")

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Message-id: 20201107193403.436146-2-f4bug@amsat.org

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/armsse.c | 3 ++-

1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/arm/armsse.c b/hw/arm/armsse.c

--- a/hw/arm/armsse.c

+++ b/hw/arm/armsse.c

@@ -XXX,XX +XXX,XX @@ static void armsse_realize(DeviceState *dev, Error **errp)

qdev_get_gpio_in(dev_splitter, 0));

qdev_connect_gpio_out(dev_splitter, 0,

qdev_get_gpio_in_named(dev_secctl,

- "mpc_status", 0));

+ "mpc_status",

+ i - IOTS_NUM_EXP_MPC));

}

qdev_connect_gpio_out(dev_splitter, 1,

2.20.1

From: Xinhao Zhang <zhangxinhao1@huawei.com>

Fix code style. Operator needs spaces both sides.

Signed-off-by: Xinhao Zhang <zhangxinhao1@huawei.com>

Signed-off-by: Kai Deng <dengkai1@huawei.com>

Message-id: 20201103114529.638233-1-zhangxinhao1@huawei.com

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/arch_dump.c | 8 ++++----

target/arm/arm-semi.c | 8 ++++----

target/arm/helper.c | 2 +-

3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/target/arm/arch_dump.c b/target/arm/arch_dump.c

--- a/target/arm/arch_dump.c

+++ b/target/arm/arch_dump.c

@@ -XXX,XX +XXX,XX @@ static int aarch64_write_elf64_prfpreg(WriteCoreDumpFunction f,

for (i = 0; i < 32; ++i) {

uint64_t *q = aa64_vfp_qreg(env, i);

- note.vfp.vregs[2*i + 0] = cpu_to_dump64(s, q[0]);

- note.vfp.vregs[2*i + 1] = cpu_to_dump64(s, q[1]);

+ note.vfp.vregs[2 * i + 0] = cpu_to_dump64(s, q[0]);

+ note.vfp.vregs[2 * i + 1] = cpu_to_dump64(s, q[1]);

}

if (s->dump_info.d_endian == ELFDATA2MSB) {

@@ -XXX,XX +XXX,XX @@ static int aarch64_write_elf64_prfpreg(WriteCoreDumpFunction f,

*/

for (i = 0; i < 32; ++i) {

uint64_t tmp = note.vfp.vregs[2*i];

- note.vfp.vregs[2*i] = note.vfp.vregs[2*i+1];

- note.vfp.vregs[2*i+1] = tmp;

+ note.vfp.vregs[2 * i] = note.vfp.vregs[2 * i + 1];

+ note.vfp.vregs[2 * i + 1] = tmp;