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authorBrian Paul <[email protected]>2008-10-22 10:34:13 -0600
committerBrian Paul <[email protected]>2008-10-22 10:34:13 -0600
commit70dd4379d2cd54f229c3940312537912470218d3 (patch)
treecf24b8e884221c7637cf9c9b27890c2c9b8ec599 /src/gallium/drivers/cell/spu/spu_command.c
parent0ae4728eb429d7b5217d34ec96fc973a5e7cfe95 (diff)
cell: implement fencing for texture buffers
If we delete a texture, we need to keep the underlying tiled data buffer around until any rendering that references it has completed. Keep a list of buffers referenced by a rendering batch. Unref/free them when the associated batch's fence is executed/signalled.
Diffstat (limited to 'src/gallium/drivers/cell/spu/spu_command.c')
-rw-r--r--src/gallium/drivers/cell/spu/spu_command.c38
1 files changed, 35 insertions, 3 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_command.c b/src/gallium/drivers/cell/spu/spu_command.c
index 9c853c0961a..a6ed29ea631 100644
--- a/src/gallium/drivers/cell/spu/spu_command.c
+++ b/src/gallium/drivers/cell/spu/spu_command.c
@@ -76,9 +76,10 @@ static void
release_buffer(uint buffer)
{
/* Evidently, using less than a 16-byte status doesn't work reliably */
- static const uint status[4] ALIGN16_ATTRIB
- = {CELL_BUFFER_STATUS_FREE, 0, 0, 0};
-
+ static const vector unsigned int status = {CELL_BUFFER_STATUS_FREE,
+ CELL_BUFFER_STATUS_FREE,
+ CELL_BUFFER_STATUS_FREE,
+ CELL_BUFFER_STATUS_FREE};
const uint index = 4 * (spu.init.id * CELL_NUM_BUFFERS + buffer);
uint *dst = spu.init.buffer_status + index;
@@ -93,6 +94,29 @@ release_buffer(uint buffer)
}
+/**
+ * Write CELL_FENCE_SIGNALLED back to the fence status qword in main memory.
+ * There's a qword of status per SPU.
+ */
+static void
+cmd_fence(struct cell_command_fence *fence_cmd)
+{
+ static const vector unsigned int status = {CELL_FENCE_SIGNALLED,
+ CELL_FENCE_SIGNALLED,
+ CELL_FENCE_SIGNALLED,
+ CELL_FENCE_SIGNALLED};
+ uint *dst = (uint *) fence_cmd->fence;
+ dst += 4 * spu.init.id; /* main store/memory address, not local store */
+
+ mfc_put((void *) &status, /* src in local memory */
+ (unsigned int) dst, /* dst in main memory */
+ sizeof(status), /* size */
+ TAG_FENCE, /* tag */
+ 0, /* tid */
+ 0 /* rid */);
+}
+
+
static void
cmd_clear_surface(const struct cell_command_clear_surface *clear)
{
@@ -637,6 +661,14 @@ cmd_batch(uint opcode)
cmd_finish();
pos += 1;
break;
+ case CELL_CMD_FENCE:
+ {
+ struct cell_command_fence *fence_cmd =
+ (struct cell_command_fence *) &buffer[pos];
+ cmd_fence(fence_cmd);
+ pos += sizeof(*fence_cmd) / 8;
+ }
+ break;
case CELL_CMD_RELEASE_VERTS:
{
struct cell_command_release_verts *release