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-rw-r--r--linux/memory.c151
1 files changed, 136 insertions, 15 deletions
diff --git a/linux/memory.c b/linux/memory.c
index a8a81abd..559ac739 100644
--- a/linux/memory.c
+++ b/linux/memory.c
@@ -44,21 +44,25 @@ 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_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_TOTALAGP] = { "totalagp" },
+ [DRM_MEM_BOUNDAGP] = { "boundagp" },
+ [DRM_MEM_CTXBITMAP] = { "ctxbitmap"},
{ NULL, 0, } /* Last entry must be null */
};
@@ -324,3 +328,120 @@ void drm_ioremapfree(void *pt, unsigned long size)
free_count, alloc_count);
}
}
+
+#ifdef DRM_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 (drm_agp.allocate_memory) {
+ 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) {
+ (*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;
+
+ DRM_DEBUG("drm_bind_agp called\n");
+ if (!handle) {
+ DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
+ "Attempt to bind NULL AGP handle\n");
+ return retcode;
+ }
+
+ DRM_DEBUG("drm_agp.bind_memory : %p\n", drm_agp.bind_memory);
+ if (drm_agp.bind_memory) {
+ 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);
+ DRM_DEBUG("drm_agp.bind_memory: retcode %d\n", retcode);
+ 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 (drm_agp.unbind_memory) {
+ int c = handle->page_count;
+ 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 += c << 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