[v6] refactor main RAM allocation to use hostmem backend

[PATCH v6 26/79] arm/omap_sx1: use memdev for RAM

Igor Mammedov posted 79 patches 5 years, 11 months ago

Diff against v1 v2 v3 v3 v4 v5
Download mbox

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>

Expand all Fold all

[PATCH v6 26/79] arm/omap_sx1: 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.

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>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
v2:
  * fix format string causing build failure on 32-bit host
    (Philippe Mathieu-Daudé <philmd@redhat.com>)
---
 hw/arm/omap_sx1.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/hw/arm/omap_sx1.c b/hw/arm/omap_sx1.c
index be245714db..2bebab4171 100644
--- a/hw/arm/omap_sx1.c
+++ b/hw/arm/omap_sx1.c
@@ -35,6 +35,7 @@
 #include "sysemu/qtest.h"
 #include "exec/address-spaces.h"
 #include "cpu.h"
+#include "qemu/cutils.h"
 
 /*****************************************************************************/
 /* Siemens SX1 Cellphone V1 */
@@ -102,8 +103,8 @@ 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 +116,20 @@ 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) {
+        char *sz = size_to_str(mc->default_ram_size);
+        error_report("Invalid RAM size, should be %s", sz);
+        g_free(sz);
+        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 +229,8 @@ 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 +247,8 @@ 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 = {
-- 
2.18.1