[PATCH v5 12/79] arm/cubieboard: use memdev for RAM

Igor Mammedov posted 79 patches 5 years, 11 months ago
Maintainers: "Michael S. Tsirkin" <mst@redhat.com>, KONRAD Frederic <frederic.konrad@adacore.com>, Jan Kiszka <jan.kiszka@web.de>, Paolo Bonzini <pbonzini@redhat.com>, Aurelien Jarno <aurelien@aurel32.net>, Cornelia Huck <cohuck@redhat.com>, Laurent Vivier <lvivier@redhat.com>, Paul Burton <pburton@wavecomp.com>, David Hildenbrand <david@redhat.com>, Radoslaw Biernacki <radoslaw.biernacki@linaro.org>, Fabien Chouteau <chouteau@adacore.com>, Andrew Baumann <Andrew.Baumann@microsoft.com>, Michael Walle <michael@walle.cc>, Peter Chubb <peter.chubb@nicta.com.au>, Richard Henderson <rth@twiddle.net>, Laurent Vivier <laurent@vivier.eu>, Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>, Sergio Lopez <slp@redhat.com>, Thomas Huth <huth@tuxfamily.org>, Beniamino Galvani <b.galvani@gmail.com>, Eduardo Habkost <ehabkost@redhat.com>, Jean-Christophe Dubois <jcd@tribudubois.net>, Helge Deller <deller@gmx.de>, Igor Mammedov <imammedo@redhat.com>, David Gibson <david@gibson.dropbear.id.au>, Andrew Jeffery <andrew@aj.id.au>, Joel Stanley <joel@jms.id.au>, Alistair Francis <alistair@alistair23.me>, Christian Borntraeger <borntraeger@de.ibm.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Thomas Huth <thuth@redhat.com>, "Hervé Poussineau" <hpoussin@reactos.org>, Andrey Smirnov <andrew.smirnov@gmail.com>, Halil Pasic <pasic@linux.ibm.com>, BALATON Zoltan <balaton@eik.bme.hu>, Antony Pavlov <antonynpavlov@gmail.com>, Aleksandar Markovic <amarkovic@wavecomp.com>, Rob Herring <robh@kernel.org>, Peter Maydell <peter.maydell@linaro.org>, "Cédric Le Goater" <clg@kaod.org>, "Philippe Mathieu-Daudé" <philmd@redhat.com>, Andrzej Zaborowski <balrogg@gmail.com>, Leif Lindholm <leif@nuviainc.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Artyom Tarasenko <atar4qemu@gmail.com>
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[PATCH v5 12/79] arm/cubieboard: 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, get rid of no longer needed CubieBoardState wrapper.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
---
CC: b.galvani@gmail.com
---
 hw/arm/cubieboard.c | 25 ++++++++-----------------
 1 file changed, 8 insertions(+), 17 deletions(-)

diff --git a/hw/arm/cubieboard.c b/hw/arm/cubieboard.c
index 6dc2f1d6b6..089f9a30c1 100644
--- a/hw/arm/cubieboard.c
+++ b/hw/arm/cubieboard.c
@@ -28,52 +28,42 @@ static struct arm_boot_info cubieboard_binfo = {
     .board_id = 0x1008,
 };
 
-typedef struct CubieBoardState {
-    AwA10State *a10;
-    MemoryRegion sdram;
-} CubieBoardState;
-
 static void cubieboard_init(MachineState *machine)
 {
-    CubieBoardState *s = g_new(CubieBoardState, 1);
+    AwA10State *a10 = AW_A10(object_new(TYPE_AW_A10));
     Error *err = NULL;
 
-    s->a10 = AW_A10(object_new(TYPE_AW_A10));
-
-    object_property_set_int(OBJECT(&s->a10->emac), 1, "phy-addr", &err);
+    object_property_set_int(OBJECT(&a10->emac), 1, "phy-addr", &err);
     if (err != NULL) {
         error_reportf_err(err, "Couldn't set phy address: ");
         exit(1);
     }
 
-    object_property_set_int(OBJECT(&s->a10->timer), 32768, "clk0-freq", &err);
+    object_property_set_int(OBJECT(&a10->timer), 32768, "clk0-freq", &err);
     if (err != NULL) {
         error_reportf_err(err, "Couldn't set clk0 frequency: ");
         exit(1);
     }
 
-    object_property_set_int(OBJECT(&s->a10->timer), 24000000, "clk1-freq",
-                            &err);
+    object_property_set_int(OBJECT(&a10->timer), 24000000, "clk1-freq", &err);
     if (err != NULL) {
         error_reportf_err(err, "Couldn't set clk1 frequency: ");
         exit(1);
     }
 
-    object_property_set_bool(OBJECT(s->a10), true, "realized", &err);
+    object_property_set_bool(OBJECT(a10), true, "realized", &err);
     if (err != NULL) {
         error_reportf_err(err, "Couldn't realize Allwinner A10: ");
         exit(1);
     }
 
-    memory_region_allocate_system_memory(&s->sdram, NULL, "cubieboard.ram",
-                                         machine->ram_size);
     memory_region_add_subregion(get_system_memory(), AW_A10_SDRAM_BASE,
-                                &s->sdram);
+                                machine->ram);
 
     /* TODO create and connect IDE devices for ide_drive_get() */
 
     cubieboard_binfo.ram_size = machine->ram_size;
-    arm_load_kernel(&s->a10->cpu, machine, &cubieboard_binfo);
+    arm_load_kernel(&a10->cpu, machine, &cubieboard_binfo);
 }
 
 static void cubieboard_machine_init(MachineClass *mc)
@@ -84,6 +74,7 @@ static void cubieboard_machine_init(MachineClass *mc)
     mc->block_default_type = IF_IDE;
     mc->units_per_default_bus = 1;
     mc->ignore_memory_transaction_failures = true;
+    mc->default_ram_id = "cubieboard.ram";
 }
 
 DEFINE_MACHINE("cubieboard", cubieboard_machine_init)
-- 
2.18.1


Re: [PATCH v5 12/79] arm/cubieboard: use memdev for RAM
Posted by Richard Henderson 5 years, 11 months ago
On 2/17/20 9:33 AM, 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:
> While at it, get rid of no longer needed CubieBoardState wrapper.
> 
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> Reviewed-by: Andrew Jones <drjones@redhat.com>
> ---

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~