gallium/radeon: unify buffer_wait and buffer_is_busy in the winsys interface

The timeout parameter covers both cases.

Reviewed-by: Alex Deucher <[email protected]>

4 files changed, 12 insertions, 21 deletions

diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c b/src/gallium/drivers/radeon/r600_buffer_common.c
index fc5f6c29870..5b5c06362a7 100644
--- a/src/gallium/drivers/radeon/r600_buffer_common.c
+++ b/src/gallium/drivers/radeon/r600_buffer_common.c
@@ -84,7 +84,7 @@ void *r600_buffer_map_sync_with_rings(struct r600_common_context *ctx,
 		}
 	}
 
-	if (busy || ctx->ws->buffer_is_busy(resource->buf, rusage)) {
+	if (busy || !ctx->ws->buffer_wait(resource->buf, 0, rusage)) {
 		if (usage & PIPE_TRANSFER_DONTBLOCK) {
 			return NULL;
 		} else {
@@ -274,7 +274,7 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
 
 		/* Check if mapping this buffer would cause waiting for the GPU. */
 		if (r600_rings_is_buffer_referenced(rctx, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
-		    rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
+		    !rctx->ws->buffer_wait(rbuffer->buf, 0, RADEON_USAGE_READWRITE)) {
 			rctx->invalidate_buffer(&rctx->b, &rbuffer->b.b);
 		}
 		/* At this point, the buffer is always idle. */
@@ -288,7 +288,7 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
 
 		/* Check if mapping this buffer would cause waiting for the GPU. */
 		if (r600_rings_is_buffer_referenced(rctx, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
-		    rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
+		    !rctx->ws->buffer_wait(rbuffer->buf, 0, RADEON_USAGE_READWRITE)) {
 			/* Do a wait-free write-only transfer using a temporary buffer. */
 			unsigned offset;
 			struct r600_resource *staging = NULL;
diff --git a/src/gallium/drivers/radeon/r600_query.c b/src/gallium/drivers/radeon/r600_query.c
index de1cdf0fbd3..7057aa19a7c 100644
--- a/src/gallium/drivers/radeon/r600_query.c
+++ b/src/gallium/drivers/radeon/r600_query.c
@@ -505,7 +505,7 @@ static boolean r600_begin_query(struct pipe_context *ctx,
 
 	/* Obtain a new buffer if the current one can't be mapped without a stall. */
 	if (r600_rings_is_buffer_referenced(rctx, rquery->buffer.buf->cs_buf, RADEON_USAGE_READWRITE) ||
-	    rctx->ws->buffer_is_busy(rquery->buffer.buf->buf, RADEON_USAGE_READWRITE)) {
+	    !rctx->ws->buffer_wait(rquery->buffer.buf->buf, 0, RADEON_USAGE_READWRITE)) {
 		pipe_resource_reference((struct pipe_resource**)&rquery->buffer.buf, NULL);
 		rquery->buffer.buf = r600_new_query_buffer(rctx, rquery->type);
 	}
diff --git a/src/gallium/drivers/radeon/r600_texture.c b/src/gallium/drivers/radeon/r600_texture.c
index d3f3e63f219..d05b0a102c0 100644
--- a/src/gallium/drivers/radeon/r600_texture.c
+++ b/src/gallium/drivers/radeon/r600_texture.c
@@ -941,7 +941,7 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx,
 		use_staging_texture = TRUE;
 	} else if (!(usage & PIPE_TRANSFER_READ) &&
 	    (r600_rings_is_buffer_referenced(rctx, rtex->resource.cs_buf, RADEON_USAGE_READWRITE) ||
-	     rctx->ws->buffer_is_busy(rtex->resource.buf, RADEON_USAGE_READWRITE))) {
+	     !rctx->ws->buffer_wait(rtex->resource.buf, 0, RADEON_USAGE_READWRITE))) {
 		/* Use a staging texture for uploads if the underlying BO is busy. */
 		use_staging_texture = TRUE;
 	}
diff --git a/src/gallium/drivers/radeon/radeon_winsys.h b/src/gallium/drivers/radeon/radeon_winsys.h
index c79a0823ad0..ea1e1970157 100644
--- a/src/gallium/drivers/radeon/radeon_winsys.h
+++ b/src/gallium/drivers/radeon/radeon_winsys.h
@@ -398,24 +398,15 @@ struct radeon_winsys {
     void (*buffer_unmap)(struct radeon_winsys_cs_handle *buf);
 
     /**
-     * Return TRUE if a buffer object is being used by the GPU.
+     * Wait for the buffer and return true if the buffer is not used
+     * by the device.
      *
-     * \param buf       A winsys buffer object.
-     * \param usage     Only check whether the buffer is busy for the given usage.
-     */
-    boolean (*buffer_is_busy)(struct pb_buffer *buf,
-                              enum radeon_bo_usage usage);
-
-    /**
-     * Wait for a buffer object until it is not used by a GPU. This is
-     * equivalent to a fence placed after the last command using the buffer,
-     * and synchronizing to the fence.
-     *
-     * \param buf       A winsys buffer object to wait for.
-     * \param usage     Only wait until the buffer is idle for the given usage,
-     *                  but may still be busy for some other usage.
+     * The timeout of 0 will only return the status.
+     * The timeout of PIPE_TIMEOUT_INFINITE will always wait until the buffer
+     * is idle.
      */
-    void (*buffer_wait)(struct pb_buffer *buf, enum radeon_bo_usage usage);
+    bool (*buffer_wait)(struct pb_buffer *buf, uint64_t timeout,
+                        enum radeon_bo_usage usage);
 
     /**
      * Return tiling flags describing a memory layout of a buffer object.