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-rw-r--r--src/gallium/winsys/drm/radeon/core/radeon_buffer.c31
-rw-r--r--src/gallium/winsys/drm/radeon/core/radeon_buffer.h5
-rw-r--r--src/gallium/winsys/drm/radeon/core/radeon_drm.c8
-rw-r--r--src/gallium/winsys/drm/radeon/core/radeon_drm.h9
4 files changed, 41 insertions, 12 deletions
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_buffer.c b/src/gallium/winsys/drm/radeon/core/radeon_buffer.c
index 385fa857b56..b020ff38fa0 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_buffer.c
+++ b/src/gallium/winsys/drm/radeon/core/radeon_buffer.c
@@ -58,6 +58,7 @@ static struct pipe_buffer *radeon_buffer_create(struct pipe_winsys *ws,
{
struct radeon_winsys *radeon_ws = (struct radeon_winsys *)ws;
struct radeon_pipe_buffer *radeon_buffer;
+ struct pb_desc desc;
uint32_t domain;
radeon_buffer = CALLOC_STRUCT(radeon_pipe_buffer);
@@ -70,6 +71,14 @@ static struct pipe_buffer *radeon_buffer_create(struct pipe_winsys *ws,
radeon_buffer->base.usage = usage;
radeon_buffer->base.size = size;
+ if (usage == PIPE_BUFFER_USAGE_CONSTANT && is_r3xx(radeon_ws->pci_id)) {
+ /* Don't bother allocating a BO, as it'll never get to the card. */
+ desc.alignment = alignment;
+ desc.usage = usage;
+ radeon_buffer->pb = pb_malloc_buffer_create(size, &desc);
+ return &radeon_buffer->base;
+ }
+
domain = 0;
if (usage & PIPE_BUFFER_USAGE_PIXEL) {
@@ -133,8 +142,16 @@ static void radeon_buffer_del(struct pipe_buffer *buffer)
struct radeon_pipe_buffer *radeon_buffer =
(struct radeon_pipe_buffer*)buffer;
- radeon_bo_unref(radeon_buffer->bo);
- free(radeon_buffer);
+ if (radeon_buffer->pb) {
+ pipe_reference_init(&radeon_buffer->pb->base.reference, 0);
+ pb_destroy(radeon_buffer->pb);
+ }
+
+ if (radeon_buffer->bo) {
+ radeon_bo_unref(radeon_buffer->bo);
+ }
+
+ FREE(radeon_buffer);
}
static void *radeon_buffer_map(struct pipe_winsys *ws,
@@ -146,6 +163,10 @@ static void *radeon_buffer_map(struct pipe_winsys *ws,
(struct radeon_pipe_buffer*)buffer;
int write = 0;
+ if (radeon_buffer->pb) {
+ return pb_map(radeon_buffer->pb, flags);
+ }
+
if (flags & PIPE_BUFFER_USAGE_DONTBLOCK) {
uint32_t domain;
@@ -174,7 +195,11 @@ static void radeon_buffer_unmap(struct pipe_winsys *ws,
struct radeon_pipe_buffer *radeon_buffer =
(struct radeon_pipe_buffer*)buffer;
- radeon_bo_unmap(radeon_buffer->bo);
+ if (radeon_buffer->pb) {
+ pb_unmap(radeon_buffer->pb);
+ } else {
+ radeon_bo_unmap(radeon_buffer->bo);
+ }
}
static void radeon_fence_reference(struct pipe_winsys *ws,
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_buffer.h b/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
index d7f17564a9f..de71cb2f42d 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
@@ -36,7 +36,7 @@
#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
-//#include "state_tracker/st_public.h"
+#include "pipebuffer/pb_buffer.h"
#include "util/u_memory.h"
@@ -49,7 +49,10 @@
struct radeon_pipe_buffer {
struct pipe_buffer base;
+ /* Pointer to GPU-backed BO. */
struct radeon_bo *bo;
+ /* Pointer to fallback PB buffer. */
+ struct pb_buffer *pb;
boolean flinked;
uint32_t flink;
};
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm.c b/src/gallium/winsys/drm/radeon/core/radeon_drm.c
index 572c5df458e..9552f0ad6a9 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_drm.c
+++ b/src/gallium/winsys/drm/radeon/core/radeon_drm.c
@@ -120,14 +120,6 @@ static void do_ioctls(int fd, struct radeon_winsys* winsys)
drmFreeVersion(version);
}
-/* Guess at whether this chipset should use r300g.
- *
- * I believe that this check is valid, but I haven't been exhaustive. */
-static boolean is_r3xx(int pciid)
-{
- return (pciid > 0x3150) && (pciid < 0x796f);
-}
-
/* Create a pipe_screen. */
struct pipe_screen* radeon_create_screen(struct drm_api* api,
int drmFB,
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm.h b/src/gallium/winsys/drm/radeon/core/radeon_drm.h
index 28f2ba818e9..ddd7983824a 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_drm.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_drm.h
@@ -77,4 +77,13 @@ boolean radeon_global_handle_from_buffer(struct drm_api* api,
unsigned* handle);
void radeon_destroy_drm_api(struct drm_api* api);
+
+/* Guess at whether this chipset should use r300g.
+ *
+ * I believe that this check is valid, but I haven't been exhaustive. */
+static boolean is_r3xx(int pciid)
+{
+ return (pciid > 0x3150) && (pciid < 0x796f);
+}
+
#endif