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-rw-r--r--linux/drm_memory.h352
-rw-r--r--linux/drm_memory_debug.h447
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