lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

drm: remove drm_{alloc,free}_pages

Browse Source 
drm_alloc_pages and drm_free_pages can now be removed.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Dave Airlie
2006-03-29 08:16:12 +10:00
parent d2b58b5883
commit 55eb061326
3 changed files with 0 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/char/drm/drmP.h
View File

@@ -813,8 +813,6 @@ extern void drm_mem_init(void);
extern int drm_mem_info(char *buf, char **start, off_t offset, extern int drm_mem_info(char *buf, char **start, off_t offset,
int request, int *eof, void *data); int request, int *eof, void *data);
extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area); extern void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area);
extern unsigned long drm_alloc_pages(int order, int area);
extern void drm_free_pages(unsigned long address, int order, int area);
extern void *drm_ioremap(unsigned long offset, unsigned long size, extern void *drm_ioremap(unsigned long offset, unsigned long size,
drm_device_t * dev); drm_device_t * dev);
extern void *drm_ioremap_nocache(unsigned long offset, unsigned long size, extern void *drm_ioremap_nocache(unsigned long offset, unsigned long size,

59
drivers/char/drm/drm_memory.c
View File

@@ -79,65 +79,6 @@ void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area)
return pt; return pt;
} }
/**
* Allocate pages.
*
* \param order size order.
* \param area memory area. (Not used.)
* \return page address on success, or zero on failure.
*
* Allocate and reserve free pages.
*/
unsigned long drm_alloc_pages(int order, int area)
{
unsigned long address;
unsigned long bytes = PAGE_SIZE << order;
unsigned long addr;
unsigned int sz;
address = __get_free_pages(GFP_KERNEL|__GFP_COMP, order);
if (!address)
return 0;
/* Zero */
memset((void *)address, 0, bytes);
/* Reserve */
for (addr = address, sz = bytes;
sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
SetPageReserved(virt_to_page(addr));
}
return address;
}
/**
* Free pages.
*
* \param address address of the pages to free.
* \param order size order.
* \param area memory area. (Not used.)
*
* Unreserve and free pages allocated by alloc_pages().
*/
void drm_free_pages(unsigned long address, int order, int area)
{
unsigned long bytes = PAGE_SIZE << order;
unsigned long addr;
unsigned int sz;
if (!address)
return;
/* Unreserve */
for (addr = address, sz = bytes;
sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
}
free_pages(address, order);
}
#if __OS_HAS_AGP #if __OS_HAS_AGP
/** Wrapper around agp_allocate_memory() */ /** Wrapper around agp_allocate_memory() */
DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type) DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type)

70
drivers/char/drm/drm_memory_debug.h
View File

@@ -206,76 +206,6 @@ void drm_free (void *pt, size_t size, int area) {
} }
} }
unsigned long drm_alloc_pages (int order, int area) {
unsigned long address;
unsigned long bytes = PAGE_SIZE << order;
unsigned long addr;
unsigned int sz;
spin_lock(&drm_mem_lock);
if ((drm_ram_used >> PAGE_SHIFT)
> (DRM_RAM_PERCENT * drm_ram_available) / 100) {
spin_unlock(&drm_mem_lock);
return 0;
}
spin_unlock(&drm_mem_lock);
address = __get_free_pages(GFP_KERNEL|__GFP_COMP, order);
if (!address) {
spin_lock(&drm_mem_lock);
++drm_mem_stats[area].fail_count;
spin_unlock(&drm_mem_lock);
return 0;
}
spin_lock(&drm_mem_lock);
++drm_mem_stats[area].succeed_count;
drm_mem_stats[area].bytes_allocated += bytes;
drm_ram_used += bytes;
spin_unlock(&drm_mem_lock);
/* Zero outside the lock */
memset((void *)address, 0, bytes);
/* Reserve */
for (addr = address, sz = bytes;
sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
SetPageReserved(virt_to_page(addr));
}
return address;
}
void drm_free_pages (unsigned long address, int order, int area) {
unsigned long bytes = PAGE_SIZE << order;
int alloc_count;
int free_count;
unsigned long addr;
unsigned int sz;
if (!address) {
DRM_MEM_ERROR(area, "Attempt to free address 0\n");
} else {
/* Unreserve */
for (addr = address, sz = bytes;
sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
ClearPageReserved(virt_to_page(addr));
}
free_pages(address, order);
}
spin_lock(&drm_mem_lock);
free_count = ++drm_mem_stats[area].free_count;
alloc_count = drm_mem_stats[area].succeed_count;
drm_mem_stats[area].bytes_freed += bytes;
drm_ram_used -= bytes;
spin_unlock(&drm_mem_lock);
if (free_count > alloc_count) {
DRM_MEM_ERROR(area,
"Excess frees: %d frees, %d allocs\n",
free_count, alloc_count);
}
}
void *drm_ioremap (unsigned long offset, unsigned long size, void *drm_ioremap (unsigned long offset, unsigned long size,
drm_device_t * dev) { drm_device_t * dev) {
void *pt; void *pt;