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[PATCH v4 44/80] lm32/lm32_boards: use memdev for RAM
From: |
Igor Mammedov |
Subject: |
[PATCH v4 44/80] lm32/lm32_boards: use memdev for RAM |
Date: |
Fri, 31 Jan 2020 16:09:14 +0100 |
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.
PS:
while at it add check for user supplied RAM size and error
out if it mismatches board expected value.
Signed-off-by: Igor Mammedov <address@hidden>
---
v2:
* fix format string causing build failure on 32-bit host
(Philippe Mathieu-Daudé <address@hidden>)
CC: address@hidden
CC: address@hidden
---
hw/lm32/lm32_boards.c | 39 ++++++++++++++++++++++++++-------------
1 file changed, 26 insertions(+), 13 deletions(-)
diff --git a/hw/lm32/lm32_boards.c b/hw/lm32/lm32_boards.c
index d1894ad..4e0a98c 100644
--- a/hw/lm32/lm32_boards.c
+++ b/hw/lm32/lm32_boards.c
@@ -19,6 +19,7 @@
#include "qemu/osdep.h"
#include "qemu/units.h"
+#include "qemu/cutils.h"
#include "qemu/error-report.h"
#include "cpu.h"
#include "hw/sysbus.h"
@@ -75,22 +76,28 @@ static void main_cpu_reset(void *opaque)
static void lm32_evr_init(MachineState *machine)
{
+ MachineClass *mc = MACHINE_GET_CLASS(machine);
const char *kernel_filename = machine->kernel_filename;
LM32CPU *cpu;
CPULM32State *env;
DriveInfo *dinfo;
MemoryRegion *address_space_mem = get_system_memory();
- MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
qemu_irq irq[32];
ResetInfo *reset_info;
int i;
+ if (machine->ram_size != mc->default_ram_size) {
+ char *sz = size_to_str(mc->default_ram_size);
+ error_report("Invalid RAM size, should be %s", sz);
+ g_free(sz);
+ exit(EXIT_FAILURE);
+ }
+
/* memory map */
hwaddr flash_base = 0x04000000;
size_t flash_sector_size = 256 * KiB;
size_t flash_size = 32 * MiB;
hwaddr ram_base = 0x08000000;
- size_t ram_size = 64 * MiB;
hwaddr timer0_base = 0x80002000;
hwaddr uart0_base = 0x80006000;
hwaddr timer1_base = 0x8000a000;
@@ -107,9 +114,7 @@ static void lm32_evr_init(MachineState *machine)
reset_info->flash_base = flash_base;
- memory_region_allocate_system_memory(phys_ram, NULL, "lm32_evr.sdram",
- ram_size);
- memory_region_add_subregion(address_space_mem, ram_base, phys_ram);
+ memory_region_add_subregion(address_space_mem, ram_base, machine->ram);
dinfo = drive_get(IF_PFLASH, 0, 0);
/* Spansion S29NS128P */
@@ -144,7 +149,7 @@ static void lm32_evr_init(MachineState *machine)
if (kernel_size < 0) {
kernel_size = load_image_targphys(kernel_filename, ram_base,
- ram_size);
+ machine->ram_size);
reset_info->bootstrap_pc = ram_base;
}
@@ -159,6 +164,7 @@ static void lm32_evr_init(MachineState *machine)
static void lm32_uclinux_init(MachineState *machine)
{
+ MachineClass *mc = MACHINE_GET_CLASS(machine);
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
@@ -166,18 +172,23 @@ static void lm32_uclinux_init(MachineState *machine)
CPULM32State *env;
DriveInfo *dinfo;
MemoryRegion *address_space_mem = get_system_memory();
- MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
qemu_irq irq[32];
HWSetup *hw;
ResetInfo *reset_info;
int i;
+ if (machine->ram_size != mc->default_ram_size) {
+ char *sz = size_to_str(mc->default_ram_size);
+ error_report("Invalid RAM size, should be %s", sz);
+ g_free(sz);
+ exit(EXIT_FAILURE);
+ }
+
/* memory map */
hwaddr flash_base = 0x04000000;
size_t flash_sector_size = 256 * KiB;
size_t flash_size = 32 * MiB;
hwaddr ram_base = 0x08000000;
- size_t ram_size = 64 * MiB;
hwaddr uart0_base = 0x80000000;
hwaddr timer0_base = 0x80002000;
hwaddr timer1_base = 0x80010000;
@@ -200,9 +211,7 @@ static void lm32_uclinux_init(MachineState *machine)
reset_info->flash_base = flash_base;
- memory_region_allocate_system_memory(phys_ram, NULL,
- "lm32_uclinux.sdram", ram_size);
- memory_region_add_subregion(address_space_mem, ram_base, phys_ram);
+ memory_region_add_subregion(address_space_mem, ram_base, machine->ram);
dinfo = drive_get(IF_PFLASH, 0, 0);
/* Spansion S29NS128P */
@@ -238,7 +247,7 @@ static void lm32_uclinux_init(MachineState *machine)
if (kernel_size < 0) {
kernel_size = load_image_targphys(kernel_filename, ram_base,
- ram_size);
+ machine->ram_size);
reset_info->bootstrap_pc = ram_base;
}
@@ -252,7 +261,7 @@ static void lm32_uclinux_init(MachineState *machine)
hw = hwsetup_init();
hwsetup_add_cpu(hw, "LM32", 75000000);
hwsetup_add_flash(hw, "flash", flash_base, flash_size);
- hwsetup_add_ddr_sdram(hw, "ddr_sdram", ram_base, ram_size);
+ hwsetup_add_ddr_sdram(hw, "ddr_sdram", ram_base, machine->ram_size);
hwsetup_add_timer(hw, "timer0", timer0_base, timer0_irq);
hwsetup_add_timer(hw, "timer1_dev_only", timer1_base, timer1_irq);
hwsetup_add_timer(hw, "timer2_dev_only", timer2_base, timer2_irq);
@@ -288,6 +297,8 @@ static void lm32_evr_class_init(ObjectClass *oc, void *data)
mc->init = lm32_evr_init;
mc->is_default = 1;
mc->default_cpu_type = LM32_CPU_TYPE_NAME("lm32-full");
+ mc->default_ram_size = 64 * MiB;
+ mc->default_ram_id = "lm32_evr.sdram";
}
static const TypeInfo lm32_evr_type = {
@@ -304,6 +315,8 @@ static void lm32_uclinux_class_init(ObjectClass *oc, void
*data)
mc->init = lm32_uclinux_init;
mc->is_default = 0;
mc->default_cpu_type = LM32_CPU_TYPE_NAME("lm32-full");
+ mc->default_ram_size = 64 * MiB;
+ mc->default_ram_id = "lm32_uclinux.sdram";
}
static const TypeInfo lm32_uclinux_type = {
--
2.7.4
- [PATCH v4 39/80] null-machine: use memdev for RAM, (continued)
- [PATCH v4 39/80] null-machine: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 34/80] arm/xilinx_zynq: drop RAM size fixup, Igor Mammedov, 2020/01/31
- [PATCH v4 38/80] s390x/s390-virtio-ccw: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 40/80] cris/axis_dev88: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 41/80] hppa: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 42/80] x86/microvm: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 43/80] x86/pc: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 45/80] lm32/milkymist: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 49/80] m68k/next-cube: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 50/80] mips/boston: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 44/80] lm32/lm32_boards: use memdev for RAM,
Igor Mammedov <=
- [PATCH v4 46/80] m68k/an5206: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 47/80] m68k/q800: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 48/80] m68k/mcf5208: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 51/80] mips/mips_fulong2e: drop RAM size fixup, Igor Mammedov, 2020/01/31
- [PATCH v4 55/80] mips/mips_mipssim: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 52/80] mips/mips_fulong2e: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 53/80] mips/mips_jazz: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 58/80] ppc/e500: use memdev for RAM, Igor Mammedov, 2020/01/31
- [PATCH v4 57/80] ppc/e500: drop RAM size fixup, Igor Mammedov, 2020/01/31
- [PATCH v4 56/80] mips/mips_r4k: use memdev for RAM, Igor Mammedov, 2020/01/31