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Re: [PATCH v5 20/79] arm/mcimx6ul-evk: use memdev for RAM


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v5 20/79] arm/mcimx6ul-evk: use memdev for RAM
Date: Tue, 18 Feb 2020 18:18:53 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1

On 2/17/20 6:33 PM, Igor Mammedov wrote:
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:
   remove no longer needed MCIMX6ULEVK

Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: Andrew Jones <address@hidden>
---
CC: address@hidden
---
  hw/arm/mcimx6ul-evk.c | 25 +++++++++----------------
  1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/hw/arm/mcimx6ul-evk.c b/hw/arm/mcimx6ul-evk.c
index e90b393a44..23a71ed378 100644
--- a/hw/arm/mcimx6ul-evk.c
+++ b/hw/arm/mcimx6ul-evk.c
@@ -19,15 +19,10 @@
  #include "qemu/error-report.h"
  #include "sysemu/qtest.h"
-typedef struct {
-    FslIMX6ULState soc;
-    MemoryRegion ram;
-} MCIMX6ULEVK;
-
  static void mcimx6ul_evk_init(MachineState *machine)
  {
      static struct arm_boot_info boot_info;
-    MCIMX6ULEVK *s = g_new0(MCIMX6ULEVK, 1);
+    FslIMX6ULState *s;
      int i;
if (machine->ram_size > FSL_IMX6UL_MMDC_SIZE) {
@@ -43,15 +38,12 @@ static void mcimx6ul_evk_init(MachineState *machine)
          .nb_cpus = machine->smp.cpus,
      };
- object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
-                            TYPE_FSL_IMX6UL, &error_fatal, NULL);
-
-    object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
+    s = FSL_IMX6UL(object_new(TYPE_FSL_IMX6UL));
+    object_property_add_child(OBJECT(machine), "soc", OBJECT(s), &error_fatal);
+    object_property_set_bool(OBJECT(s), true, "realized", &error_fatal);
- memory_region_allocate_system_memory(&s->ram, NULL, "mcimx6ul-evk.ram",
-                                         machine->ram_size);
-    memory_region_add_subregion(get_system_memory(),
-                                FSL_IMX6UL_MMDC_ADDR, &s->ram);
+    memory_region_add_subregion(get_system_memory(), FSL_IMX6UL_MMDC_ADDR,
+                                machine->ram);
for (i = 0; i < FSL_IMX6UL_NUM_USDHCS; i++) {
          BusState *bus;
@@ -61,7 +53,7 @@ static void mcimx6ul_evk_init(MachineState *machine)
di = drive_get_next(IF_SD);
          blk = di ? blk_by_legacy_dinfo(di) : NULL;
-        bus = qdev_get_child_bus(DEVICE(&s->soc.usdhc[i]), "sd-bus");
+        bus = qdev_get_child_bus(DEVICE(&s->usdhc[i]), "sd-bus");
          carddev = qdev_create(bus, TYPE_SD_CARD);
          qdev_prop_set_drive(carddev, "drive", blk, &error_fatal);
          object_property_set_bool(OBJECT(carddev), true,
@@ -69,7 +61,7 @@ static void mcimx6ul_evk_init(MachineState *machine)
      }
if (!qtest_enabled()) {
-        arm_load_kernel(&s->soc.cpu, machine, &boot_info);
+        arm_load_kernel(&s->cpu, machine, &boot_info);
      }
  }
@@ -78,5 +70,6 @@ static void mcimx6ul_evk_machine_init(MachineClass *mc)
      mc->desc = "Freescale i.MX6UL Evaluation Kit (Cortex A7)";
      mc->init = mcimx6ul_evk_init;
      mc->max_cpus = FSL_IMX6UL_NUM_CPUS;
+    mc->default_ram_id = "mcimx6ul-evk.ram";
  }
  DEFINE_MACHINE("mcimx6ul-evk", mcimx6ul_evk_machine_init)


Reviewed-by: Philippe Mathieu-Daudé <address@hidden>




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