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drm/radeon: use an intervall tree to manage the VMA v2

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Scales much better than scanning the address range linearly.

v2: store pfn instead of address

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2014-07-30 11:49:56 -04:00
parent c265f24d5c
commit 0aea5e4aa2
5 changed files with 52 additions and 61 deletions
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4
drivers/gpu/drm/radeon/radeon_gem.c
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@@ -496,9 +496,9 @@ int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
switch (args->operation) {
case RADEON_VA_MAP:
if (bo_va->soffset) {
if (bo_va->it.start) {
args->operation = RADEON_VA_RESULT_VA_EXIST;
args->offset = bo_va->soffset;
args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
goto out;
}
r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);