[v2,26/86] arm:omap_sx1: use memdev for RAM
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Message ID 1579100861-73692-27-git-send-email-imammedo@redhat.com
State New
Headers show
Series
  • refactor main RAM allocation to use hostmem backend
Related show

Commit Message

Igor Mammedov Jan. 15, 2020, 3:06 p.m. UTC
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 <imammedo@redhat.com>
---
v2:
  * fix format string causing build failure on 32-bit host
    (Philippe Mathieu-Daudé <philmd@redhat.com>)

CC: peter.maydell@linaro.org
CC: qemu-arm@nongnu.org
---
 hw/arm/omap_sx1.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

Patch
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diff --git a/hw/arm/omap_sx1.c b/hw/arm/omap_sx1.c
index be24571..aa1831b 100644
--- a/hw/arm/omap_sx1.c
+++ b/hw/arm/omap_sx1.c
@@ -102,8 +102,8 @@  static struct arm_boot_info sx1_binfo = {
 static void sx1_init(MachineState *machine, const int version)
 {
     struct omap_mpu_state_s *mpu;
+    MachineClass *mc = MACHINE_GET_CLASS(machine);
     MemoryRegion *address_space = get_system_memory();
-    MemoryRegion *dram = g_new(MemoryRegion, 1);
     MemoryRegion *flash = g_new(MemoryRegion, 1);
     MemoryRegion *cs = g_new(MemoryRegion, 4);
     static uint32_t cs0val = 0x00213090;
@@ -115,15 +115,19 @@  static void sx1_init(MachineState *machine, const int version)
     uint32_t flash_size = flash0_size;
     int be;
 
+    if (machine->ram_size != mc->default_ram_size) {
+        error_report("Invalid RAM size, should be " RAM_ADDR_UFMT " Bytes",
+                     mc->default_ram_size);
+        exit(EXIT_FAILURE);
+    }
+
     if (version == 2) {
         flash_size = flash2_size;
     }
 
-    memory_region_allocate_system_memory(dram, NULL, "omap1.dram",
-                                         sx1_binfo.ram_size);
-    memory_region_add_subregion(address_space, OMAP_EMIFF_BASE, dram);
+    memory_region_add_subregion(address_space, OMAP_EMIFF_BASE, machine->ram);
 
-    mpu = omap310_mpu_init(dram, machine->cpu_type);
+    mpu = omap310_mpu_init(machine->ram, machine->cpu_type);
 
     /* External Flash (EMIFS) */
     memory_region_init_ram(flash, NULL, "omap_sx1.flash0-0", flash_size,
@@ -223,6 +227,8 @@  static void sx1_machine_v2_class_init(ObjectClass *oc, void *data)
     mc->init = sx1_init_v2;
     mc->ignore_memory_transaction_failures = true;
     mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
+    mc->default_ram_size = sdram_size;
+    mc->default_ram_id = "omap1.dram";
 }
 
 static const TypeInfo sx1_machine_v2_type = {
@@ -239,6 +245,8 @@  static void sx1_machine_v1_class_init(ObjectClass *oc, void *data)
     mc->init = sx1_init_v1;
     mc->ignore_memory_transaction_failures = true;
     mc->default_cpu_type = ARM_CPU_TYPE_NAME("ti925t");
+    mc->default_ram_size = sdram_size;
+    mc->default_ram_id = "omap1.dram";
 }
 
 static const TypeInfo sx1_machine_v1_type = {