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broadcom/vc5: Emit raw loads for MSAA buffers.

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Similar to stores, but we also need to emit dummy stores in between each
load, to flush out the previous queued load.
This commit is contained in:
Eric Anholt
2017-10-25 12:29:51 -07:00
parent 464f1fb733
commit 0ec4b4178f
1 changed files with 58 additions and 0 deletions
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src/gallium/drivers/vc5/vc5_rcl.c
+58
View File
@@ -26,6 +26,25 @@
#include "vc5_tiling.h"
#include "broadcom/cle/v3d_packet_v33_pack.h"
static void
load_raw(struct vc5_cl *cl, struct pipe_surface *psurf, int buffer)
{
struct vc5_surface *surf = vc5_surface(psurf);
struct vc5_resource *rsc = vc5_resource(psurf->texture);
cl_emit(cl, LOAD_TILE_BUFFER_GENERAL, load) {
load.raw_mode = true;
load.buffer_to_load = buffer;
load.address = cl_address(rsc->bo, surf->offset);
struct vc5_resource_slice *slice =
&rsc->slices[psurf->u.tex.level];
load.padded_height_of_output_image_in_uif_blocks =
(slice->size / slice->stride) /
(2 * vc5_utile_height(rsc->cpp));
}
}
static void
store_raw(struct vc5_cl *cl, struct pipe_surface *psurf, int buffer,
bool color_clear, bool z_clear, bool s_clear)
@@ -64,6 +83,20 @@ zs_buffer_from_pipe_bits(int pipe_clear_bits)
}
}
/* The HW queues up the load until the tile coordinates show up, but can only
* track one at a time. If we need to do more than one load, then we need to
* flush out the previous load by emitting the tile coordinates and doing a
* dummy store.
*/
static void
flush_last_load(struct vc5_cl *cl)
{
cl_emit(cl, TILE_COORDINATES_IMPLICIT, coords);
cl_emit(cl, STORE_TILE_BUFFER_GENERAL, store) {
store.buffer_to_store = NONE;
}
}
static void
vc5_rcl_emit_generic_per_tile_list(struct vc5_job *job, int last_cbuf)
{
@@ -82,6 +115,31 @@ vc5_rcl_emit_generic_per_tile_list(struct vc5_job *job, int last_cbuf)
uint32_t read_but_not_cleared = job->resolve & ~job->cleared;
for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
uint32_t bit = PIPE_CLEAR_COLOR0 << i;
if (!(read_but_not_cleared & bit))
continue;
struct pipe_surface *psurf = job->cbufs[i];
if (!psurf || psurf->texture->nr_samples <= 1)
continue;
load_raw(cl, psurf, RENDER_TARGET_0 + i);
read_but_not_cleared &= ~bit;
if (read_but_not_cleared)
flush_last_load(cl);
}
if (job->zsbuf && job->zsbuf->texture->nr_samples > 1 &&
read_but_not_cleared & PIPE_CLEAR_DEPTHSTENCIL) {
load_raw(cl, job->zsbuf,
zs_buffer_from_pipe_bits(read_but_not_cleared));
read_but_not_cleared &= ~PIPE_CLEAR_DEPTHSTENCIL;
if (read_but_not_cleared)
cl_emit(cl, TILE_COORDINATES_IMPLICIT, coords);
}
/* The initial reload will be queued until we get the
* tile coordinates.
*/