From 7998beb9c2e280f0b7424223747941f106e2e854 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 19 Feb 2020 11:08:59 -0500 Subject: [PATCH] arm/nseries: use memdev for RAM 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 Reviewed-by: Andrew Jones Reviewed-by: Richard Henderson Message-Id: <20200219160953.13771-26-imammedo@redhat.com> --- hw/arm/nseries.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) diff --git a/hw/arm/nseries.c b/hw/arm/nseries.c index 3fd196fb30..eae800b5c1 100644 --- a/hw/arm/nseries.c +++ b/hw/arm/nseries.c @@ -47,7 +47,6 @@ /* Nokia N8x0 support */ struct n800_s { - MemoryRegion sdram; struct omap_mpu_state_s *mpu; struct rfbi_chip_s blizzard; @@ -1311,13 +1310,19 @@ static void n8x0_init(MachineState *machine, struct arm_boot_info *binfo, int model) { struct n800_s *s = (struct n800_s *) g_malloc0(sizeof(*s)); - uint64_t sdram_size = binfo->ram_size; + MachineClass *mc = MACHINE_GET_CLASS(machine); - memory_region_allocate_system_memory(&s->sdram, NULL, "omap2.dram", - sdram_size); - memory_region_add_subregion(get_system_memory(), OMAP2_Q2_BASE, &s->sdram); + 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); + } - s->mpu = omap2420_mpu_init(&s->sdram, machine->cpu_type); + memory_region_add_subregion(get_system_memory(), OMAP2_Q2_BASE, + machine->ram); + + s->mpu = omap2420_mpu_init(machine->ram, machine->cpu_type); /* Setup peripherals * @@ -1383,9 +1388,8 @@ static void n8x0_init(MachineState *machine, * * The code above is for loading the `zImage' file from Nokia * images. */ - load_image_targphys(option_rom[0].name, - OMAP2_Q2_BASE + 0x400000, - sdram_size - 0x400000); + load_image_targphys(option_rom[0].name, OMAP2_Q2_BASE + 0x400000, + machine->ram_size - 0x400000); n800_setup_nolo_tags(nolo_tags); cpu_physical_memory_write(OMAP2_SRAM_BASE, nolo_tags, 0x10000); @@ -1395,16 +1399,12 @@ static void n8x0_init(MachineState *machine, static struct arm_boot_info n800_binfo = { .loader_start = OMAP2_Q2_BASE, - /* Actually two chips of 0x4000000 bytes each */ - .ram_size = 0x08000000, .board_id = 0x4f7, .atag_board = n800_atag_setup, }; static struct arm_boot_info n810_binfo = { .loader_start = OMAP2_Q2_BASE, - /* Actually two chips of 0x4000000 bytes each */ - .ram_size = 0x08000000, /* 0x60c and 0x6bf (WiMAX Edition) have been assigned but are not * used by some older versions of the bootloader and 5555 is used * instead (including versions that shipped with many devices). */ @@ -1431,6 +1431,9 @@ static void n800_class_init(ObjectClass *oc, void *data) mc->default_boot_order = ""; mc->ignore_memory_transaction_failures = true; mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2"); + /* Actually two chips of 0x4000000 bytes each */ + mc->default_ram_size = 0x08000000; + mc->default_ram_id = "omap2.dram"; } static const TypeInfo n800_type = { @@ -1448,6 +1451,9 @@ static void n810_class_init(ObjectClass *oc, void *data) mc->default_boot_order = ""; mc->ignore_memory_transaction_failures = true; mc->default_cpu_type = ARM_CPU_TYPE_NAME("arm1136-r2"); + /* Actually two chips of 0x4000000 bytes each */ + mc->default_ram_size = 0x08000000; + mc->default_ram_id = "omap2.dram"; } static const TypeInfo n810_type = {