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yaml
---
r: 201434
b: refs/heads/master
c: 98864ff
h: refs/heads/master
v: v3
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Russell King committed Jul 27, 2010
1 parent ca453fa commit 57c072b
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Showing 6 changed files with 40 additions and 35 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 8d717a52d1b0959128be5134dd12608e8e4f2115
refs/heads/master: 98864ff58dd2b8ef9e72b0d2c70f34e7ff24a2ee
4 changes: 2 additions & 2 deletions trunk/arch/arm/plat-omap/common.c
Original file line number Diff line number Diff line change
Expand Up @@ -85,8 +85,8 @@ EXPORT_SYMBOL(omap_get_var_config);

void __init omap_reserve(void)
{
omapfb_reserve_sdram();
omap_vram_reserve_sdram();
omapfb_reserve_sdram_memblock();
omap_vram_reserve_sdram_memblock();
}

/*
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30 changes: 19 additions & 11 deletions trunk/arch/arm/plat-omap/fb.c
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/bootmem.h>
#include <linux/memblock.h>
#include <linux/io.h>
#include <linux/omapfb.h>

Expand Down Expand Up @@ -173,25 +173,27 @@ static int check_fbmem_region(int region_idx, struct omapfb_mem_region *rg,

static int valid_sdram(unsigned long addr, unsigned long size)
{
struct bootmem_data *bdata = NODE_DATA(0)->bdata;
unsigned long sdram_start, sdram_end;
struct memblock_property res;

sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
sdram_end = bdata->node_low_pfn << PAGE_SHIFT;

return addr >= sdram_start && sdram_end - addr >= size;
res.base = addr;
res.size = size;
return !memblock_find(&res) && res.base == addr && res.size == size;
}

static int reserve_sdram(unsigned long addr, unsigned long size)
{
return reserve_bootmem(addr, size, BOOTMEM_EXCLUSIVE);
if (memblock_is_region_reserved(addr, size))
return -EBUSY;
if (memblock_reserve(addr, size))
return -ENOMEM;
return 0;
}

/*
* Called from map_io. We need to call to this early enough so that we
* can reserve the fixed SDRAM regions before VM could get hold of them.
*/
void __init omapfb_reserve_sdram(void)
void __init omapfb_reserve_sdram_memblock(void)
{
unsigned long reserved = 0;
int i;
Expand Down Expand Up @@ -386,7 +388,10 @@ static inline int omap_init_fb(void)

arch_initcall(omap_init_fb);

void omapfb_reserve_sdram(void) {}
void omapfb_reserve_sdram_memblock(void)
{
}

unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
unsigned long sram_vstart,
unsigned long sram_size,
Expand All @@ -402,7 +407,10 @@ void omapfb_set_platform_data(struct omapfb_platform_data *data)
{
}

void omapfb_reserve_sdram(void) {}
void omapfb_reserve_sdram_memblock(void)
{
}

unsigned long omapfb_reserve_sram(unsigned long sram_pstart,
unsigned long sram_vstart,
unsigned long sram_size,
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4 changes: 2 additions & 2 deletions trunk/arch/arm/plat-omap/include/plat/vram.h
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ extern void omap_vram_get_info(unsigned long *vram, unsigned long *free_vram,
extern void omap_vram_set_sdram_vram(u32 size, u32 start);
extern void omap_vram_set_sram_vram(u32 size, u32 start);

extern void omap_vram_reserve_sdram(void);
extern void omap_vram_reserve_sdram_memblock(void);
extern unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
unsigned long sram_vstart,
unsigned long sram_size,
Expand All @@ -48,7 +48,7 @@ extern unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
static inline void omap_vram_set_sdram_vram(u32 size, u32 start) { }
static inline void omap_vram_set_sram_vram(u32 size, u32 start) { }

static inline void omap_vram_reserve_sdram(void) { }
static inline void omap_vram_reserve_sdram_memblock(void) { }
static inline unsigned long omap_vram_reserve_sram(unsigned long sram_pstart,
unsigned long sram_vstart,
unsigned long sram_size,
Expand Down
33 changes: 15 additions & 18 deletions trunk/drivers/video/omap2/vram.c
Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/bootmem.h>
#include <linux/memblock.h>
#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/jiffies.h>
Expand Down Expand Up @@ -525,10 +525,8 @@ early_param("vram", omap_vram_early_vram);
* Called from map_io. We need to call to this early enough so that we
* can reserve the fixed SDRAM regions before VM could get hold of them.
*/
void __init omap_vram_reserve_sdram(void)
void __init omap_vram_reserve_sdram_memblock(void)
{
struct bootmem_data *bdata;
unsigned long sdram_start, sdram_size;
u32 paddr;
u32 size = 0;

Expand All @@ -555,29 +553,28 @@ void __init omap_vram_reserve_sdram(void)

size = PAGE_ALIGN(size);

bdata = NODE_DATA(0)->bdata;
sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;

if (paddr) {
if ((paddr & ~PAGE_MASK) || paddr < sdram_start ||
paddr + size > sdram_start + sdram_size) {
struct memblock_property res;

res.base = paddr;
res.size = size;
if ((paddr & ~PAGE_MASK) || memblock_find(&res) ||
res.base != paddr || res.size != size) {
pr_err("Illegal SDRAM region for VRAM\n");
return;
}

if (reserve_bootmem(paddr, size, BOOTMEM_EXCLUSIVE) < 0) {
pr_err("FB: failed to reserve VRAM\n");
if (memblock_is_region_reserved(paddr, size)) {
pr_err("FB: failed to reserve VRAM - busy\n");
return;
}
} else {
if (size > sdram_size) {
pr_err("Illegal SDRAM size for VRAM\n");

if (memblock_reserve(paddr, size) < 0) {
pr_err("FB: failed to reserve VRAM - no memory\n");
return;
}

paddr = virt_to_phys(alloc_bootmem_pages(size));
BUG_ON(paddr & ~PAGE_MASK);
} else {
paddr = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_REAL_LIMIT);
}

omap_vram_add_region(paddr, size);
Expand Down
2 changes: 1 addition & 1 deletion trunk/include/linux/omapfb.h
Original file line number Diff line number Diff line change
Expand Up @@ -253,7 +253,7 @@ struct omapfb_platform_data {
/* in arch/arm/plat-omap/fb.c */
extern void omapfb_set_platform_data(struct omapfb_platform_data *data);
extern void omapfb_set_ctrl_platform_data(void *pdata);
extern void omapfb_reserve_sdram(void);
extern void omapfb_reserve_sdram_memblock(void);

#endif

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