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authorMarek Olšák <[email protected]>2011-08-07 19:18:16 +0200
committerMarek Olšák <[email protected]>2011-08-16 09:15:11 +0200
commitebfcc58b93cc08c534857c2314694e35b29690ae (patch)
tree7bc3971d29de8880b2c8136500b7362eb2ad88e6 /src/gallium
parent1e3c81a068c4ae04cd1c6b18c687d5be69b7b8c4 (diff)
winsys/radeon: take advantage of the new ioctl
Reviewed-by: Alex Deucher <[email protected]>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/winsys/radeon/drm/radeon_drm_bo.c40
1 files changed, 28 insertions, 12 deletions
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_bo.c b/src/gallium/winsys/radeon/drm/radeon_drm_bo.c
index 5c91ec48942..adfbefd897b 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_bo.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_bo.c
@@ -197,13 +197,33 @@ static void *radeon_bo_map_internal(struct pb_buffer *_buf,
if (!(flags & PB_USAGE_UNSYNCHRONIZED)) {
/* DONTBLOCK doesn't make sense with UNSYNCHRONIZED. */
if (flags & PB_USAGE_DONTBLOCK) {
- if (radeon_bo_is_referenced_by_cs(cs, bo)) {
- cs->flush_cs(cs->flush_data, RADEON_FLUSH_ASYNC);
- return NULL;
- }
+ if (!(flags & PB_USAGE_CPU_WRITE)) {
+ /* Mapping for read.
+ *
+ * Since we are mapping for read, we don't need to wait
+ * if the GPU is using the buffer for read too
+ * (neither one is changing it).
+ *
+ * Only check whether the buffer is being used for write. */
+ if (radeon_bo_is_referenced_by_cs_for_write(cs, bo)) {
+ cs->flush_cs(cs->flush_data, RADEON_FLUSH_ASYNC);
+ return NULL;
+ }
- if (radeon_bo_is_busy((struct pb_buffer*)bo, RADEON_USAGE_READWRITE)) {
- return NULL;
+ if (radeon_bo_is_busy((struct pb_buffer*)bo,
+ RADEON_USAGE_WRITE)) {
+ return NULL;
+ }
+ } else {
+ if (radeon_bo_is_referenced_by_cs(cs, bo)) {
+ cs->flush_cs(cs->flush_data, RADEON_FLUSH_ASYNC);
+ return NULL;
+ }
+
+ if (radeon_bo_is_busy((struct pb_buffer*)bo,
+ RADEON_USAGE_READWRITE)) {
+ return NULL;
+ }
}
} else {
if (!(flags & PB_USAGE_CPU_WRITE)) {
@@ -216,13 +236,9 @@ static void *radeon_bo_map_internal(struct pb_buffer *_buf,
* Only check whether the buffer is being used for write. */
if (radeon_bo_is_referenced_by_cs_for_write(cs, bo)) {
cs->flush_cs(cs->flush_data, 0);
- radeon_bo_wait((struct pb_buffer*)bo,
- RADEON_USAGE_READWRITE);
- } else {
- /* XXX We could check whether the buffer is busy for write here. */
- radeon_bo_wait((struct pb_buffer*)bo,
- RADEON_USAGE_READWRITE);
}
+ radeon_bo_wait((struct pb_buffer*)bo,
+ RADEON_USAGE_WRITE);
} else {
/* Mapping for write. */
if (radeon_bo_is_referenced_by_cs(cs, bo)) {