[PATCH v6 08/79] alpha/dp264: use memdev for RAM

Igor Mammedov posted 79 patches 5 years, 11 months ago
Maintainers: Andrew Baumann <Andrew.Baumann@microsoft.com>, David Gibson <david@gibson.dropbear.id.au>, Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>, Andrew Jeffery <andrew@aj.id.au>, Radoslaw Biernacki <radoslaw.biernacki@linaro.org>, Jan Kiszka <jan.kiszka@web.de>, Sergio Lopez <slp@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, Antony Pavlov <antonynpavlov@gmail.com>, "Michael S. Tsirkin" <mst@redhat.com>, Beniamino Galvani <b.galvani@gmail.com>, David Hildenbrand <david@redhat.com>, Leif Lindholm <leif@nuviainc.com>, Andrzej Zaborowski <balrogg@gmail.com>, Cornelia Huck <cohuck@redhat.com>, Halil Pasic <pasic@linux.ibm.com>, Eduardo Habkost <ehabkost@redhat.com>, BALATON Zoltan <balaton@eik.bme.hu>, "Hervé Poussineau" <hpoussin@reactos.org>, Jean-Christophe Dubois <jcd@tribudubois.net>, Aleksandar Markovic <amarkovic@wavecomp.com>, Igor Mammedov <imammedo@redhat.com>, Paul Burton <pburton@wavecomp.com>, Andrey Smirnov <andrew.smirnov@gmail.com>, Peter Maydell <peter.maydell@linaro.org>, Christian Borntraeger <borntraeger@de.ibm.com>, Laurent Vivier <lvivier@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Artyom Tarasenko <atar4qemu@gmail.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Richard Henderson <rth@twiddle.net>, Laurent Vivier <laurent@vivier.eu>, Alistair Francis <alistair@alistair23.me>, Michael Walle <michael@walle.cc>, Fabien Chouteau <chouteau@adacore.com>, Thomas Huth <thuth@redhat.com>, Helge Deller <deller@gmx.de>, "Philippe Mathieu-Daudé" <philmd@redhat.com>, Joel Stanley <joel@jms.id.au>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Rob Herring <robh@kernel.org>, "Cédric Le Goater" <clg@kaod.org>, Peter Chubb <peter.chubb@nicta.com.au>, Thomas Huth <huth@tuxfamily.org>, KONRAD Frederic <frederic.konrad@adacore.com>, Paolo Bonzini <pbonzini@redhat.com>
[PATCH v6 08/79] alpha/dp264: use memdev for RAM
Posted by Igor Mammedov 5 years, 11 months ago
memory_region_allocate_system_memory() API is going away, so
replace it with memdev allocated MemoryRegion. The later is
initialized by generic code, so board only needs to opt in
to memdev scheme by providing
  MachineClass::default_ram_id
and using MachineState::ram instead of manually initializing
RAM memory region.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
---
 hw/alpha/alpha_sys.h | 2 +-
 hw/alpha/dp264.c     | 3 ++-
 hw/alpha/typhoon.c   | 8 ++------
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/hw/alpha/alpha_sys.h b/hw/alpha/alpha_sys.h
index 95033d7f0b..bc0a286226 100644
--- a/hw/alpha/alpha_sys.h
+++ b/hw/alpha/alpha_sys.h
@@ -11,7 +11,7 @@
 #include "hw/intc/i8259.h"
 
 
-PCIBus *typhoon_init(ram_addr_t, ISABus **, qemu_irq *, AlphaCPU *[4],
+PCIBus *typhoon_init(MemoryRegion *, ISABus **, qemu_irq *, AlphaCPU *[4],
                      pci_map_irq_fn);
 
 /* alpha_pci.c.  */
diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c
index a8f9a89cc4..8d71a30617 100644
--- a/hw/alpha/dp264.c
+++ b/hw/alpha/dp264.c
@@ -75,7 +75,7 @@ static void clipper_init(MachineState *machine)
     cpus[0]->env.trap_arg2 = smp_cpus;
 
     /* Init the chipset.  */
-    pci_bus = typhoon_init(ram_size, &isa_bus, &rtc_irq, cpus,
+    pci_bus = typhoon_init(machine->ram, &isa_bus, &rtc_irq, cpus,
                            clipper_pci_map_irq);
 
     /* Since we have an SRM-compatible PALcode, use the SRM epoch.  */
@@ -183,6 +183,7 @@ static void clipper_machine_init(MachineClass *mc)
     mc->max_cpus = 4;
     mc->is_default = 1;
     mc->default_cpu_type = ALPHA_CPU_TYPE_NAME("ev67");
+    mc->default_ram_id = "ram";
 }
 
 DEFINE_MACHINE("clipper", clipper_machine_init)
diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c
index 179e1f7658..1795e2f29d 100644
--- a/hw/alpha/typhoon.c
+++ b/hw/alpha/typhoon.c
@@ -58,7 +58,6 @@ typedef struct TyphoonState {
     TyphoonCchip cchip;
     TyphoonPchip pchip;
     MemoryRegion dchip_region;
-    MemoryRegion ram_region;
 } TyphoonState;
 
 /* Called when one of DRIR or DIM changes.  */
@@ -817,8 +816,7 @@ static void typhoon_alarm_timer(void *opaque)
     cpu_interrupt(CPU(s->cchip.cpu[cpu]), CPU_INTERRUPT_TIMER);
 }
 
-PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
-                     qemu_irq *p_rtc_irq,
+PCIBus *typhoon_init(MemoryRegion *ram, ISABus **isa_bus, qemu_irq *p_rtc_irq,
                      AlphaCPU *cpus[4], pci_map_irq_fn sys_map_irq)
 {
     MemoryRegion *addr_space = get_system_memory();
@@ -851,9 +849,7 @@ PCIBus *typhoon_init(ram_addr_t ram_size, ISABus **isa_bus,
 
     /* Main memory region, 0x00.0000.0000.  Real hardware supports 32GB,
        but the address space hole reserved at this point is 8TB.  */
-    memory_region_allocate_system_memory(&s->ram_region, OBJECT(s), "ram",
-                                         ram_size);
-    memory_region_add_subregion(addr_space, 0, &s->ram_region);
+    memory_region_add_subregion(addr_space, 0, ram);
 
     /* TIGbus, 0x801.0000.0000, 1GB.  */
     /* ??? The TIGbus is used for delivering interrupts, and access to
-- 
2.18.1