diff options
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/drm_memory.h | 352 | ||||
| -rw-r--r-- | linux/drm_memory_debug.h | 447 |
2 files changed, 480 insertions, 319 deletions
diff --git a/linux/drm_memory.h b/linux/drm_memory.h index 138de873..299185cb 100644 --- a/linux/drm_memory.h +++ b/linux/drm_memory.h @@ -34,166 +34,47 @@ #include "drmP.h" #include <linux/wrapper.h> -typedef struct drm_mem_stats { - const char *name; - int succeed_count; - int free_count; - int fail_count; - unsigned long bytes_allocated; - unsigned long bytes_freed; -} drm_mem_stats_t; +/* Cut down version of drm_memory_debug.h, which used to be called + * drm_memory.h. If you want the debug functionality, change 0 to 1 + * below. + */ +#define DEBUG_MEMORY 0 -static spinlock_t DRM(mem_lock) = SPIN_LOCK_UNLOCKED; -static unsigned long DRM(ram_available) = 0; /* In pages */ -static unsigned long DRM(ram_used) = 0; -static drm_mem_stats_t DRM(mem_stats)[] = { - [DRM_MEM_DMA] = { "dmabufs" }, - [DRM_MEM_SAREA] = { "sareas" }, - [DRM_MEM_DRIVER] = { "driver" }, - [DRM_MEM_MAGIC] = { "magic" }, - [DRM_MEM_IOCTLS] = { "ioctltab" }, - [DRM_MEM_MAPS] = { "maplist" }, - [DRM_MEM_VMAS] = { "vmalist" }, - [DRM_MEM_BUFS] = { "buflist" }, - [DRM_MEM_SEGS] = { "seglist" }, - [DRM_MEM_PAGES] = { "pagelist" }, - [DRM_MEM_FILES] = { "files" }, - [DRM_MEM_QUEUES] = { "queues" }, - [DRM_MEM_CMDS] = { "commands" }, - [DRM_MEM_MAPPINGS] = { "mappings" }, - [DRM_MEM_BUFLISTS] = { "buflists" }, - [DRM_MEM_AGPLISTS] = { "agplist" }, - [DRM_MEM_SGLISTS] = { "sglist" }, - [DRM_MEM_TOTALAGP] = { "totalagp" }, - [DRM_MEM_BOUNDAGP] = { "boundagp" }, - [DRM_MEM_CTXBITMAP] = { "ctxbitmap"}, - [DRM_MEM_STUB] = { "stub" }, - { NULL, 0, } /* Last entry must be null */ -}; +#if DEBUG_MEMORY +#include "drm_memory_debug.h" +#else void DRM(mem_init)(void) { - drm_mem_stats_t *mem; - struct sysinfo si; - - for (mem = DRM(mem_stats); mem->name; ++mem) { - mem->succeed_count = 0; - mem->free_count = 0; - mem->fail_count = 0; - mem->bytes_allocated = 0; - mem->bytes_freed = 0; - } - - si_meminfo(&si); - DRM(ram_available) = si.totalram; - DRM(ram_used) = 0; } /* drm_mem_info is called whenever a process reads /dev/drm/mem. */ - -static int DRM(_mem_info)(char *buf, char **start, off_t offset, - int request, int *eof, void *data) -{ - drm_mem_stats_t *pt; - int len = 0; - - if (offset > DRM_PROC_LIMIT) { - *eof = 1; - return 0; - } - - *eof = 0; - *start = &buf[offset]; - - DRM_PROC_PRINT(" total counts " - " | outstanding \n"); - DRM_PROC_PRINT("type alloc freed fail bytes freed" - " | allocs bytes\n\n"); - DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB |\n", - "system", 0, 0, 0, - DRM(ram_available) << (PAGE_SHIFT - 10)); - DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB |\n", - "locked", 0, 0, 0, DRM(ram_used) >> 10); - DRM_PROC_PRINT("\n"); - for (pt = DRM(mem_stats); pt->name; pt++) { - DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n", - pt->name, - pt->succeed_count, - pt->free_count, - pt->fail_count, - pt->bytes_allocated, - pt->bytes_freed, - pt->succeed_count - pt->free_count, - (long)pt->bytes_allocated - - (long)pt->bytes_freed); - } - - if (len > request + offset) return request; - *eof = 1; - return len - offset; -} - int DRM(mem_info)(char *buf, char **start, off_t offset, int len, int *eof, void *data) { - int ret; - - spin_lock(&DRM(mem_lock)); - ret = DRM(_mem_info)(buf, start, offset, len, eof, data); - spin_unlock(&DRM(mem_lock)); - return ret; + return 0; } void *DRM(alloc)(size_t size, int area) { - void *pt; - - if (!size) { - DRM_MEM_ERROR(area, "Allocating 0 bytes\n"); - return NULL; - } - - if (!(pt = kmalloc(size, GFP_KERNEL))) { - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[area].fail_count; - spin_unlock(&DRM(mem_lock)); - return NULL; - } - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[area].succeed_count; - DRM(mem_stats)[area].bytes_allocated += size; - spin_unlock(&DRM(mem_lock)); - return pt; + return kmalloc(size, GFP_KERNEL); } void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, int area) { void *pt; - if (!(pt = DRM(alloc)(size, area))) return NULL; + if (!(pt = kmalloc(size, GFP_KERNEL))) return NULL; if (oldpt && oldsize) { memcpy(pt, oldpt, oldsize); - DRM(free)(oldpt, oldsize, area); + kfree(oldpt); } return pt; } void DRM(free)(void *pt, size_t size, int area) { - int alloc_count; - int free_count; - - if (!pt) DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n"); - else kfree(pt); - spin_lock(&DRM(mem_lock)); - DRM(mem_stats)[area].bytes_freed += size; - free_count = ++DRM(mem_stats)[area].free_count; - alloc_count = DRM(mem_stats)[area].succeed_count; - 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); - } + kfree(pt); } unsigned long DRM(alloc_pages)(int order, int area) @@ -203,29 +84,11 @@ unsigned long DRM(alloc_pages)(int order, int area) 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, order); - if (!address) { - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[area].fail_count; - spin_unlock(&DRM(mem_lock)); + if (!address) 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 */ + /* Zero */ memset((void *)address, 0, bytes); /* Reserve */ @@ -246,202 +109,53 @@ void DRM(free_pages)(unsigned long address, int order, int area) 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) { - mem_map_unreserve(virt_to_page(addr)); - } - free_pages(address, order); - } + if (!address) + return; - 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); + /* Unreserve */ + for (addr = address, sz = bytes; + sz > 0; + addr += PAGE_SIZE, sz -= PAGE_SIZE) { + mem_map_unreserve(virt_to_page(addr)); } + + free_pages(address, order); } void *DRM(ioremap)(unsigned long offset, unsigned long size) { - void *pt; - - if (!size) { - DRM_MEM_ERROR(DRM_MEM_MAPPINGS, - "Mapping 0 bytes at 0x%08lx\n", offset); - return NULL; - } - - if (!(pt = ioremap(offset, size))) { - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count; - spin_unlock(&DRM(mem_lock)); - return NULL; - } - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; - DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += size; - spin_unlock(&DRM(mem_lock)); - return pt; + return ioremap(offset, size); } void *DRM(ioremap_nocache)(unsigned long offset, unsigned long size) { - void *pt; - - if (!size) { - DRM_MEM_ERROR(DRM_MEM_MAPPINGS, - "Mapping 0 bytes at 0x%08lx\n", offset); - return NULL; - } - - if (!(pt = ioremap_nocache(offset, size))) { - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count; - spin_unlock(&DRM(mem_lock)); - return NULL; - } - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; - DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += size; - spin_unlock(&DRM(mem_lock)); - return pt; + return ioremap_nocache(offset, size); } void DRM(ioremapfree)(void *pt, unsigned long size) { - int alloc_count; - int free_count; - - if (!pt) - DRM_MEM_ERROR(DRM_MEM_MAPPINGS, - "Attempt to free NULL pointer\n"); - else - iounmap(pt); - - spin_lock(&DRM(mem_lock)); - DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_freed += size; - free_count = ++DRM(mem_stats)[DRM_MEM_MAPPINGS].free_count; - alloc_count = DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; - spin_unlock(&DRM(mem_lock)); - if (free_count > alloc_count) { - DRM_MEM_ERROR(DRM_MEM_MAPPINGS, - "Excess frees: %d frees, %d allocs\n", - free_count, alloc_count); - } + iounmap(pt); } #if __REALLY_HAVE_AGP - agp_memory *DRM(alloc_agp)(int pages, u32 type) { - agp_memory *handle; - - if (!pages) { - DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n"); - return NULL; - } - - if ((handle = DRM(agp_allocate_memory)(pages, type))) { - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count; - DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_allocated - += pages << PAGE_SHIFT; - spin_unlock(&DRM(mem_lock)); - return handle; - } - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_TOTALAGP].fail_count; - spin_unlock(&DRM(mem_lock)); - return NULL; + return DRM(agp_allocate_memory)(pages, type); } int DRM(free_agp)(agp_memory *handle, int pages) { - int alloc_count; - int free_count; - int retval = -EINVAL; - - if (!handle) { - DRM_MEM_ERROR(DRM_MEM_TOTALAGP, - "Attempt to free NULL AGP handle\n"); - return retval;; - } - - if (DRM(agp_free_memory)(handle)) { - spin_lock(&DRM(mem_lock)); - free_count = ++DRM(mem_stats)[DRM_MEM_TOTALAGP].free_count; - alloc_count = DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count; - DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_freed - += pages << PAGE_SHIFT; - spin_unlock(&DRM(mem_lock)); - if (free_count > alloc_count) { - DRM_MEM_ERROR(DRM_MEM_TOTALAGP, - "Excess frees: %d frees, %d allocs\n", - free_count, alloc_count); - } - return 0; - } - return retval; + return DRM(agp_free_memory)(handle) ? 0 : -EINVAL; } int DRM(bind_agp)(agp_memory *handle, unsigned int start) { - int retcode = -EINVAL; - - if (!handle) { - DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, - "Attempt to bind NULL AGP handle\n"); - return retcode; - } - - if (!(retcode = DRM(agp_bind_memory)(handle, start))) { - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count; - DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_allocated - += handle->page_count << PAGE_SHIFT; - spin_unlock(&DRM(mem_lock)); - return retcode; - } - spin_lock(&DRM(mem_lock)); - ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].fail_count; - spin_unlock(&DRM(mem_lock)); - return retcode; + return DRM(agp_bind_memory)(handle, start); } int DRM(unbind_agp)(agp_memory *handle) { - int alloc_count; - int free_count; - int retcode = -EINVAL; - - if (!handle) { - DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, - "Attempt to unbind NULL AGP handle\n"); - return retcode; - } - - if ((retcode = DRM(agp_unbind_memory)(handle))) return retcode; - spin_lock(&DRM(mem_lock)); - free_count = ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].free_count; - alloc_count = DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count; - DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_freed - += handle->page_count << PAGE_SHIFT; - spin_unlock(&DRM(mem_lock)); - if (free_count > alloc_count) { - DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, - "Excess frees: %d frees, %d allocs\n", - free_count, alloc_count); - } - return retcode; + return DRM(agp_unbind_memory)(handle); } -#endif +#endif /* agp */ +#endif /* debug_memory */ diff --git a/linux/drm_memory_debug.h b/linux/drm_memory_debug.h new file mode 100644 index 00000000..138de873 --- /dev/null +++ b/linux/drm_memory_debug.h @@ -0,0 +1,447 @@ +/* drm_memory.h -- Memory management wrappers for DRM -*- linux-c -*- + * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Gareth Hughes <gareth@valinux.com> + */ + +#define __NO_VERSION__ +#include <linux/config.h> +#include "drmP.h" +#include <linux/wrapper.h> + +typedef struct drm_mem_stats { + const char *name; + int succeed_count; + int free_count; + int fail_count; + unsigned long bytes_allocated; + unsigned long bytes_freed; +} drm_mem_stats_t; + +static spinlock_t DRM(mem_lock) = SPIN_LOCK_UNLOCKED; +static unsigned long DRM(ram_available) = 0; /* In pages */ +static unsigned long DRM(ram_used) = 0; +static drm_mem_stats_t DRM(mem_stats)[] = { + [DRM_MEM_DMA] = { "dmabufs" }, + [DRM_MEM_SAREA] = { "sareas" }, + [DRM_MEM_DRIVER] = { "driver" }, + [DRM_MEM_MAGIC] = { "magic" }, + [DRM_MEM_IOCTLS] = { "ioctltab" }, + [DRM_MEM_MAPS] = { "maplist" }, + [DRM_MEM_VMAS] = { "vmalist" }, + [DRM_MEM_BUFS] = { "buflist" }, + [DRM_MEM_SEGS] = { "seglist" }, + [DRM_MEM_PAGES] = { "pagelist" }, + [DRM_MEM_FILES] = { "files" }, + [DRM_MEM_QUEUES] = { "queues" }, + [DRM_MEM_CMDS] = { "commands" }, + [DRM_MEM_MAPPINGS] = { "mappings" }, + [DRM_MEM_BUFLISTS] = { "buflists" }, + [DRM_MEM_AGPLISTS] = { "agplist" }, + [DRM_MEM_SGLISTS] = { "sglist" }, + [DRM_MEM_TOTALAGP] = { "totalagp" }, + [DRM_MEM_BOUNDAGP] = { "boundagp" }, + [DRM_MEM_CTXBITMAP] = { "ctxbitmap"}, + [DRM_MEM_STUB] = { "stub" }, + { NULL, 0, } /* Last entry must be null */ +}; + +void DRM(mem_init)(void) +{ + drm_mem_stats_t *mem; + struct sysinfo si; + + for (mem = DRM(mem_stats); mem->name; ++mem) { + mem->succeed_count = 0; + mem->free_count = 0; + mem->fail_count = 0; + mem->bytes_allocated = 0; + mem->bytes_freed = 0; + } + + si_meminfo(&si); + DRM(ram_available) = si.totalram; + DRM(ram_used) = 0; +} + +/* drm_mem_info is called whenever a process reads /dev/drm/mem. */ + +static int DRM(_mem_info)(char *buf, char **start, off_t offset, + int request, int *eof, void *data) +{ + drm_mem_stats_t *pt; + int len = 0; + + if (offset > DRM_PROC_LIMIT) { + *eof = 1; + return 0; + } + + *eof = 0; + *start = &buf[offset]; + + DRM_PROC_PRINT(" total counts " + " | outstanding \n"); + DRM_PROC_PRINT("type alloc freed fail bytes freed" + " | allocs bytes\n\n"); + DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB |\n", + "system", 0, 0, 0, + DRM(ram_available) << (PAGE_SHIFT - 10)); + DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB |\n", + "locked", 0, 0, 0, DRM(ram_used) >> 10); + DRM_PROC_PRINT("\n"); + for (pt = DRM(mem_stats); pt->name; pt++) { + DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n", + pt->name, + pt->succeed_count, + pt->free_count, + pt->fail_count, + pt->bytes_allocated, + pt->bytes_freed, + pt->succeed_count - pt->free_count, + (long)pt->bytes_allocated + - (long)pt->bytes_freed); + } + + if (len > request + offset) return request; + *eof = 1; + return len - offset; +} + +int DRM(mem_info)(char *buf, char **start, off_t offset, + int len, int *eof, void *data) +{ + int ret; + + spin_lock(&DRM(mem_lock)); + ret = DRM(_mem_info)(buf, start, offset, len, eof, data); + spin_unlock(&DRM(mem_lock)); + return ret; +} + +void *DRM(alloc)(size_t size, int area) +{ + void *pt; + + if (!size) { + DRM_MEM_ERROR(area, "Allocating 0 bytes\n"); + return NULL; + } + + if (!(pt = kmalloc(size, GFP_KERNEL))) { + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[area].fail_count; + spin_unlock(&DRM(mem_lock)); + return NULL; + } + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[area].succeed_count; + DRM(mem_stats)[area].bytes_allocated += size; + spin_unlock(&DRM(mem_lock)); + return pt; +} + +void *DRM(realloc)(void *oldpt, size_t oldsize, size_t size, int area) +{ + void *pt; + + if (!(pt = DRM(alloc)(size, area))) return NULL; + if (oldpt && oldsize) { + memcpy(pt, oldpt, oldsize); + DRM(free)(oldpt, oldsize, area); + } + return pt; +} + +void DRM(free)(void *pt, size_t size, int area) +{ + int alloc_count; + int free_count; + + if (!pt) DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n"); + else kfree(pt); + spin_lock(&DRM(mem_lock)); + DRM(mem_stats)[area].bytes_freed += size; + free_count = ++DRM(mem_stats)[area].free_count; + alloc_count = DRM(mem_stats)[area].succeed_count; + 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); + } +} + +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, 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) { + mem_map_reserve(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) { + mem_map_unreserve(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 *pt; + + if (!size) { + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Mapping 0 bytes at 0x%08lx\n", offset); + return NULL; + } + + if (!(pt = ioremap(offset, size))) { + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count; + spin_unlock(&DRM(mem_lock)); + return NULL; + } + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; + DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += size; + spin_unlock(&DRM(mem_lock)); + return pt; +} + +void *DRM(ioremap_nocache)(unsigned long offset, unsigned long size) +{ + void *pt; + + if (!size) { + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Mapping 0 bytes at 0x%08lx\n", offset); + return NULL; + } + + if (!(pt = ioremap_nocache(offset, size))) { + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count; + spin_unlock(&DRM(mem_lock)); + return NULL; + } + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; + DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += size; + spin_unlock(&DRM(mem_lock)); + return pt; +} + +void DRM(ioremapfree)(void *pt, unsigned long size) +{ + int alloc_count; + int free_count; + + if (!pt) + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Attempt to free NULL pointer\n"); + else + iounmap(pt); + + spin_lock(&DRM(mem_lock)); + DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_freed += size; + free_count = ++DRM(mem_stats)[DRM_MEM_MAPPINGS].free_count; + alloc_count = DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count; + spin_unlock(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } +} + +#if __REALLY_HAVE_AGP + +agp_memory *DRM(alloc_agp)(int pages, u32 type) +{ + agp_memory *handle; + + if (!pages) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n"); + return NULL; + } + + if ((handle = DRM(agp_allocate_memory)(pages, type))) { + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count; + DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_allocated + += pages << PAGE_SHIFT; + spin_unlock(&DRM(mem_lock)); + return handle; + } + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_TOTALAGP].fail_count; + spin_unlock(&DRM(mem_lock)); + return NULL; +} + +int DRM(free_agp)(agp_memory *handle, int pages) +{ + int alloc_count; + int free_count; + int retval = -EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, + "Attempt to free NULL AGP handle\n"); + return retval;; + } + + if (DRM(agp_free_memory)(handle)) { + spin_lock(&DRM(mem_lock)); + free_count = ++DRM(mem_stats)[DRM_MEM_TOTALAGP].free_count; + alloc_count = DRM(mem_stats)[DRM_MEM_TOTALAGP].succeed_count; + DRM(mem_stats)[DRM_MEM_TOTALAGP].bytes_freed + += pages << PAGE_SHIFT; + spin_unlock(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } + return 0; + } + return retval; +} + +int DRM(bind_agp)(agp_memory *handle, unsigned int start) +{ + int retcode = -EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Attempt to bind NULL AGP handle\n"); + return retcode; + } + + if (!(retcode = DRM(agp_bind_memory)(handle, start))) { + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count; + DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_allocated + += handle->page_count << PAGE_SHIFT; + spin_unlock(&DRM(mem_lock)); + return retcode; + } + spin_lock(&DRM(mem_lock)); + ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].fail_count; + spin_unlock(&DRM(mem_lock)); + return retcode; +} + +int DRM(unbind_agp)(agp_memory *handle) +{ + int alloc_count; + int free_count; + int retcode = -EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Attempt to unbind NULL AGP handle\n"); + return retcode; + } + + if ((retcode = DRM(agp_unbind_memory)(handle))) return retcode; + spin_lock(&DRM(mem_lock)); + free_count = ++DRM(mem_stats)[DRM_MEM_BOUNDAGP].free_count; + alloc_count = DRM(mem_stats)[DRM_MEM_BOUNDAGP].succeed_count; + DRM(mem_stats)[DRM_MEM_BOUNDAGP].bytes_freed + += handle->page_count << PAGE_SHIFT; + spin_unlock(&DRM(mem_lock)); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } + return retcode; +} +#endif |