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authorChristian König <deathsimple@vodafone.de>2012-10-09 13:31:17 +0200
committerAlex Deucher <alexander.deucher@amd.com>2012-10-15 13:21:01 -0400
commit90a51a329258e3c868f6f4c1fb264ca01c590c57 (patch)
tree2bfb3fd80201daaa1eda0be376478146e273e526 /drivers/gpu/drm/radeon/radeon.h
parent23d4f1f246a98dde1dc485e0be9a647126630347 (diff)
drm/radeon: allocate page tables on demand v4
Based on Dmitries work, but splitting the code into page directory and page table handling makes it far more readable and (hopefully) more reliable. Allocations of page tables are made from the SA on demand, that should still work fine since all page tables are of the same size. Also using the fact that allocations from the SA are mostly continuously (except for end of buffer wraps and under very high memory pressure) to group updates send to the chipset specific code into larger chunks. v3: mostly a rewrite of Dmitries previous patch. v4: fix some typos and coding style Signed-off-by: Dmitry Cherkasov <Dmitrii.Cherkasov@amd.com> Signed-off-by: Christian König <deathsimple@vodafone.de> Tested-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon.h')
-rw-r--r--drivers/gpu/drm/radeon/radeon.h11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index b04c06444d8..bc6b56bf274 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -663,9 +663,14 @@ struct radeon_vm {
struct list_head list;
struct list_head va;
unsigned id;
- unsigned last_pfn;
- u64 pd_gpu_addr;
- struct radeon_sa_bo *sa_bo;
+
+ /* contains the page directory */
+ struct radeon_sa_bo *page_directory;
+ uint64_t pd_gpu_addr;
+
+ /* array of page tables, one for each page directory entry */
+ struct radeon_sa_bo **page_tables;
+
struct mutex mutex;
/* last fence for cs using this vm */
struct radeon_fence *fence;