diff options
Diffstat (limited to 'src/gallium/drivers/radeon')
| -rw-r--r-- | src/gallium/drivers/radeon/r600_buffer_common.c | 12 | ||||
| -rw-r--r-- | src/gallium/drivers/radeon/r600_pipe_common.h | 4 |
2 files changed, 11 insertions, 5 deletions
diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c b/src/gallium/drivers/radeon/r600_buffer_common.c index d215c9dfe80..bc7e14beca4 100644 --- a/src/gallium/drivers/radeon/r600_buffer_common.c +++ b/src/gallium/drivers/radeon/r600_buffer_common.c @@ -254,6 +254,12 @@ static void r600_buffer_destroy(struct pipe_screen *screen, FREE(rbuffer); } +/* Reallocate the buffer a update all resource bindings where the buffer is + * bound. + * + * This is used to avoid CPU-GPU synchronizations, because it makes the buffer + * idle by discarding its contents. + */ static bool r600_invalidate_buffer(struct r600_common_context *rctx, struct r600_resource *rbuffer) @@ -275,7 +281,11 @@ r600_invalidate_buffer(struct r600_common_context *rctx, /* Check if mapping this buffer would cause waiting for the GPU. */ if (si_rings_is_buffer_referenced(rctx, rbuffer->buf, RADEON_USAGE_READWRITE) || !rctx->ws->buffer_wait(rbuffer->buf, 0, RADEON_USAGE_READWRITE)) { - rctx->invalidate_buffer(&rctx->b, &rbuffer->b.b); + uint64_t old_va = rbuffer->gpu_address; + + /* Reallocate the buffer in the same pipe_resource. */ + si_alloc_resource(rctx->screen, rbuffer); + si_rebind_buffer(&rctx->b, &rbuffer->b.b, old_va); } else { util_range_set_empty(&rbuffer->valid_buffer_range); } diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h b/src/gallium/drivers/radeon/r600_pipe_common.h index 9dbe18d0855..288562bfdf3 100644 --- a/src/gallium/drivers/radeon/r600_pipe_common.h +++ b/src/gallium/drivers/radeon/r600_pipe_common.h @@ -495,10 +495,6 @@ struct r600_common_context { void (*decompress_dcc)(struct pipe_context *ctx, struct r600_texture *rtex); - - /* Reallocate the buffer and update all resource bindings where - * the buffer is bound, including all resource descriptors. */ - void (*invalidate_buffer)(struct pipe_context *ctx, struct pipe_resource *buf); }; /* r600_buffer_common.c */ |