From 5917bfa4c0c529d7a93323671f2edec7e3d81c07 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Mon, 2 Jan 2012 22:57:03 -0500
Subject: [PATCH 1/2] ARM: mach-shmobile: use standard 2MiB coherent DMA memory
size
The 158MiB memory area was used to support HD
resolution multimedia workloads using the same
legacy memory allocating solution as on SH.
There are no in-tree kernel dependencies on the
158MiB setting, and future development should
reserve and allocate memory using some other
method like for instance CMA.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
arch/arm/mach-shmobile/board-ag5evm.c | 2 --
arch/arm/mach-shmobile/board-ap4evb.c | 2 --
arch/arm/mach-shmobile/board-g3evm.c | 2 --
arch/arm/mach-shmobile/board-g4evm.c | 2 --
arch/arm/mach-shmobile/board-mackerel.c | 2 --
5 files changed, 10 deletions(-)
diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c
index b862e9f81e3e5..226d567695e6b 100644
--- a/arch/arm/mach-shmobile/board-ag5evm.c
+++ b/arch/arm/mach-shmobile/board-ag5evm.c
@@ -466,8 +466,6 @@ static struct map_desc ag5evm_io_desc[] __initdata = {
static void __init ag5evm_map_io(void)
{
iotable_init(ag5evm_io_desc, ARRAY_SIZE(ag5evm_io_desc));
- /* DMA memory at 0xf6000000 - 0xffdfffff */
- init_consistent_dma_size(158 << 20);
/* setup early devices and console here as well */
sh73a0_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index 4c865ece9ac4e..6a6f9f7568c2d 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -1172,8 +1172,6 @@ static struct map_desc ap4evb_io_desc[] __initdata = {
static void __init ap4evb_map_io(void)
{
iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc));
- /* DMA memory at 0xf6000000 - 0xffdfffff */
- init_consistent_dma_size(158 << 20);
/* setup early devices and console here as well */
sh7372_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-g3evm.c b/arch/arm/mach-shmobile/board-g3evm.c
index 8b620bf062210..72d557281b1f1 100644
--- a/arch/arm/mach-shmobile/board-g3evm.c
+++ b/arch/arm/mach-shmobile/board-g3evm.c
@@ -261,8 +261,6 @@ static struct map_desc g3evm_io_desc[] __initdata = {
static void __init g3evm_map_io(void)
{
iotable_init(g3evm_io_desc, ARRAY_SIZE(g3evm_io_desc));
- /* DMA memory at 0xf6000000 - 0xffdfffff */
- init_consistent_dma_size(158 << 20);
/* setup early devices and console here as well */
sh7367_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c
index 7719ddc5f5910..2220b885cff57 100644
--- a/arch/arm/mach-shmobile/board-g4evm.c
+++ b/arch/arm/mach-shmobile/board-g4evm.c
@@ -275,8 +275,6 @@ static struct map_desc g4evm_io_desc[] __initdata = {
static void __init g4evm_map_io(void)
{
iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
- /* DMA memory at 0xf6000000 - 0xffdfffff */
- init_consistent_dma_size(158 << 20);
/* setup early devices and console here as well */
sh7377_add_early_devices();
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 9c5e598e0e3d6..ed5256687397f 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -1390,8 +1390,6 @@ static struct map_desc mackerel_io_desc[] __initdata = {
static void __init mackerel_map_io(void)
{
iotable_init(mackerel_io_desc, ARRAY_SIZE(mackerel_io_desc));
- /* DMA memory at 0xf6000000 - 0xffdfffff */
- init_consistent_dma_size(158 << 20);
/* setup early devices and console here as well */
sh7372_add_early_devices();
From 9561f4e052a06167694e110d76ce3a5e38b59522 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Mon, 2 Jan 2012 23:00:32 -0500
Subject: [PATCH 2/2] Revert "ARM: move VMALLOC_END down temporarily for
shmobile"
This reverts commit 0af362f8440a78b970d5f215e234420fa87d0f3f as shmobile
is not using a non-standard memory layout anymore.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
arch/arm/include/asm/pgtable.h | 7 -------
1 file changed, 7 deletions(-)
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index bcae9b81a6d08..6cdd55cb0b8c0 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -37,13 +37,6 @@
#define VMALLOC_START (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
#define VMALLOC_END 0xff000000UL
-/* This is a temporary hack until shmobile's DMA area size is sorted out */
-#ifdef CONFIG_ARCH_SHMOBILE
-#warning "SH-Mobile's consistent DMA size conflicts with VMALLOC_END by 144MB"
-#undef VMALLOC_END
-#define VMALLOC_END 0xF6000000UL
-#endif
-
#define LIBRARY_TEXT_START 0x0c000000
#ifndef __ASSEMBLY__