nouveau: place static buffers in VRAM if preferred by the driver

3 files changed, 42 insertions, 5 deletions

diff --git a/src/gallium/drivers/nouveau/nouveau_buffer.c b/src/gallium/drivers/nouveau/nouveau_buffer.c
index c396e3c3986..d04ac2f9f1c 100644
--- a/src/gallium/drivers/nouveau/nouveau_buffer.c
+++ b/src/gallium/drivers/nouveau/nouveau_buffer.c
@@ -363,10 +363,31 @@ nouveau_buffer_create(struct pipe_screen *pscreen,
    pipe_reference_init(&buffer->base.reference, 1);
    buffer->base.screen = pscreen;
 
-   if ((buffer->base.bind & screen->sysmem_bindings) == screen->sysmem_bindings)
-      ret = nouveau_buffer_allocate(screen, buffer, 0);
-   else
-      ret = nouveau_buffer_allocate(screen, buffer, NOUVEAU_BO_GART);
+   if (buffer->base.bind &
+       (screen->vidmem_bindings & screen->sysmem_bindings)) {
+      switch (buffer->base.usage) {
+      case PIPE_USAGE_DEFAULT:
+      case PIPE_USAGE_IMMUTABLE:
+      case PIPE_USAGE_STATIC:
+         buffer->domain = NOUVEAU_BO_VRAM;
+         break;
+      case PIPE_USAGE_DYNAMIC:
+      case PIPE_USAGE_STAGING:
+      case PIPE_USAGE_STREAM:
+         buffer->domain = NOUVEAU_BO_GART;
+         break;
+      default:
+         assert(0);
+         break;
+      }
+   } else {
+      if (buffer->base.bind & screen->vidmem_bindings)
+         buffer->domain = NOUVEAU_BO_VRAM;
+      else
+      if (buffer->base.bind & screen->sysmem_bindings)
+         buffer->domain = NOUVEAU_BO_GART;
+   }
+   ret = nouveau_buffer_allocate(screen, buffer, buffer->domain);
 
    if (ret == FALSE)
       goto fail;
diff --git a/src/gallium/drivers/nouveau/nouveau_screen.c b/src/gallium/drivers/nouveau/nouveau_screen.c
index 74377799977..9baa68ce151 100644
--- a/src/gallium/drivers/nouveau/nouveau_screen.c
+++ b/src/gallium/drivers/nouveau/nouveau_screen.c
@@ -148,6 +148,16 @@ nouveau_screen_init(struct nouveau_screen *screen, struct nouveau_device *dev)
 
 	util_format_s3tc_init();
 
+	screen->lowmem_bindings = PIPE_BIND_GLOBAL; /* gallium limit */
+	screen->vidmem_bindings =
+		PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL |
+		PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_CURSOR |
+		PIPE_BIND_SAMPLER_VIEW |
+		PIPE_BIND_SHADER_RESOURCE | PIPE_BIND_COMPUTE_RESOURCE |
+		PIPE_BIND_GLOBAL;
+	screen->sysmem_bindings =
+		PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_STREAM_OUTPUT;
+
 	memset(&mm_config, 0, sizeof(mm_config));
 
 	screen->mm_GART = nouveau_mm_create(dev,
diff --git a/src/gallium/drivers/nouveau/nouveau_screen.h b/src/gallium/drivers/nouveau/nouveau_screen.h
index 4ca286bfe8d..5a3cfab92e9 100644
--- a/src/gallium/drivers/nouveau/nouveau_screen.h
+++ b/src/gallium/drivers/nouveau/nouveau_screen.h
@@ -17,7 +17,13 @@ struct nouveau_screen {
 	struct nouveau_client *client;
 	struct nouveau_pushbuf *pushbuf;
 
-	unsigned sysmem_bindings;
+	unsigned vidmem_bindings; /* PIPE_BIND_* where VRAM placement is desired */
+	unsigned sysmem_bindings; /* PIPE_BIND_* where GART placement is desired */
+	unsigned lowmem_bindings; /* PIPE_BIND_* that require an address < 4 GiB */
+	/*
+	 * For bindings with (vidmem & sysmem) bits set set, PIPE_USAGE_* decides
+	 * placement.
+	 */
 
 	uint16_t class_3d;