Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/char/drm/drm_memory_debug.h b/drivers/char/drm/drm_memory_debug.h
new file mode 100644
index 0000000..2c82e69
--- /dev/null
+++ b/drivers/char/drm/drm_memory_debug.h
@@ -0,0 +1,459 @@
+/**
+ * \file drm_memory.h
+ * Memory management wrappers for DRM.
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@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.
+ */
+
+#include <linux/config.h>
+#include "drmP.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 DEFINE_SPINLOCK(DRM(mem_lock));
+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_CTXLIST] = { "ctxlist" },
+ [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(calloc)(size_t nmemb, size_t size, int area)
+{
+ void *addr;
+
+ addr = DRM(alloc)(nmemb * size, area);
+ if (addr != NULL)
+ memset((void *)addr, 0, size * nmemb);
+
+ return addr;
+}
+
+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) {
+ 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;
+
+ if (!size) {
+ DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
+ "Mapping 0 bytes at 0x%08lx\n", offset);
+ return NULL;
+ }
+
+ if (!(pt = drm_ioremap(offset, size, dev))) {
+ 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, drm_device_t *dev)
+{
+ void *pt;
+
+ if (!size) {
+ DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
+ "Mapping 0 bytes at 0x%08lx\n", offset);
+ return NULL;
+ }
+
+ if (!(pt = drm_ioremap_nocache(offset, size, dev))) {
+ 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, drm_device_t *dev)
+{
+ int alloc_count;
+ int free_count;
+
+ if (!pt)
+ DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
+ "Attempt to free NULL pointer\n");
+ else
+ drm_ioremapfree(pt, size, dev);
+
+ 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 __OS_HAS_AGP
+
+DRM_AGP_MEM *DRM(alloc_agp)(int pages, u32 type)
+{
+ DRM_AGP_MEM *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)(DRM_AGP_MEM *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)(DRM_AGP_MEM *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)(DRM_AGP_MEM *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