From 55eb061326765b2d0489387cfb3fc7dbd244f917 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 29 Mar 2006 08:16:12 +1000 Subject: [PATCH] drm: remove drm_{alloc,free}_pages drm_alloc_pages and drm_free_pages can now be removed. Signed-off-by: Adrian Bunk Signed-off-by: Andrew Morton Signed-off-by: Dave Airlie --- drivers/char/drm/drmP.h | 2 - drivers/char/drm/drm_memory.c | 59 ------------------------ drivers/char/drm/drm_memory_debug.h | 70 ----------------------------- 3 files changed, 131 deletions(-) diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h index dbe952f899c0..edc72a6348a7 100644 --- a/drivers/char/drm/drmP.h +++ b/drivers/char/drm/drmP.h @@ -813,8 +813,6 @@ extern void drm_mem_init(void); extern int drm_mem_info(char *buf, char **start, off_t offset, int request, int *eof, void *data); 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, drm_device_t * dev); extern void *drm_ioremap_nocache(unsigned long offset, unsigned long size, diff --git a/drivers/char/drm/drm_memory.c b/drivers/char/drm/drm_memory.c index 8074771e348f..dddf8de66143 100644 --- a/drivers/char/drm/drm_memory.c +++ b/drivers/char/drm/drm_memory.c @@ -79,65 +79,6 @@ void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area) 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 /** Wrapper around agp_allocate_memory() */ DRM_AGP_MEM *drm_alloc_agp(drm_device_t * dev, int pages, u32 type) diff --git a/drivers/char/drm/drm_memory_debug.h b/drivers/char/drm/drm_memory_debug.h index e84605fc54af..7868341817da 100644 --- a/drivers/char/drm/drm_memory_debug.h +++ b/drivers/char/drm/drm_memory_debug.h @@ -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, drm_device_t * dev) { void *pt;