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freedreno: add helper to estimate # of bins per pipe

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For vsc size calculation, we need to know the # of bins per pipe.  Or at
least the worst-case # of bins, assuming we don't eliminate an unused depth/
stencil buffer.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4750>
This commit is contained in:
Rob Clark
2020-04-25 10:45:31 -07:00
committed by Marge Bot
parent a9c255d70c
commit 99d802ccc7
2 changed files with 24 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/gallium/drivers/freedreno/freedreno_gmem.c
+23 -5
View File
@@ -353,7 +353,7 @@ __fd_gmem_destroy(struct fd_gmem_stateobj *gmem)
}
static struct gmem_key *
key_init(struct fd_batch *batch)
gmem_key_init(struct fd_batch *batch, bool assume_zs)
{
struct fd_screen *screen = batch->ctx->screen;
struct pipe_framebuffer_state *pfb = &batch->framebuffer;
@@ -361,7 +361,7 @@ key_init(struct fd_batch *batch)
FD_GMEM_STENCIL_ENABLED | FD_GMEM_CLEARS_DEPTH_STENCIL));
struct gmem_key *key = rzalloc(screen->gmem_cache.ht, struct gmem_key);
if (has_zs) {
if (has_zs || assume_zs) {
struct fd_resource *rsc = fd_resource(pfb->zsbuf->texture);
key->zsbuf_cpp[0] = rsc->layout.cpp;
if (rsc->stencil)
@@ -412,12 +412,12 @@ key_init(struct fd_batch *batch)
}
static struct fd_gmem_stateobj *
lookup_gmem_state(struct fd_batch *batch)
lookup_gmem_state(struct fd_batch *batch, bool assume_zs)
{
struct fd_screen *screen = batch->ctx->screen;
struct fd_gmem_cache *cache = &screen->gmem_cache;
struct fd_gmem_stateobj *gmem = NULL;
struct gmem_key *key = key_init(batch);
struct gmem_key *key = gmem_key_init(batch, assume_zs);
uint32_t hash = gmem_key_hash(key);
mtx_lock(&screen->lock);
@@ -610,7 +610,7 @@ fd_gmem_render_tiles(struct fd_batch *batch)
render_sysmem(batch);
ctx->stats.batch_sysmem++;
} else {
struct fd_gmem_stateobj *gmem = lookup_gmem_state(batch);
struct fd_gmem_stateobj *gmem = lookup_gmem_state(batch, false);
batch->gmem_state = gmem;
fd_log(batch, "%p: rendering %dx%d tiles %ux%u (%s/%s)",
batch, pfb->width, pfb->height, gmem->nbins_x, gmem->nbins_y,
@@ -631,6 +631,24 @@ fd_gmem_render_tiles(struct fd_batch *batch)
flush_ring(batch);
}
/* Determine a worst-case estimate (ie. assuming we don't eliminate an
* unused depth/stencil) number of bins per vsc pipe.
*/
unsigned
fd_gmem_estimate_bins_per_pipe(struct fd_batch *batch)
{
struct pipe_framebuffer_state *pfb = &batch->framebuffer;
struct fd_screen *screen = batch->ctx->screen;
struct fd_gmem_stateobj *gmem = lookup_gmem_state(batch, !!pfb->zsbuf);
unsigned nbins = gmem->maxpw * gmem->maxph;
mtx_lock(&screen->lock);
fd_gmem_reference(&gmem, NULL);
mtx_unlock(&screen->lock);
return nbins;
}
/* When deciding whether a tile needs mem2gmem, we need to take into
* account the scissor rect(s) that were cleared. To simplify we only
* consider the last scissor rect for each buffer, since the common
src/gallium/drivers/freedreno/freedreno_gmem.h
+1 -1
View File
@@ -88,7 +88,7 @@ struct fd_gmem_cache {
struct fd_batch;
void fd_gmem_render_tiles(struct fd_batch *batch);
unsigned fd_gmem_estimate_bins_per_pipe(struct fd_batch *batch);
bool fd_gmem_needs_restore(struct fd_batch *batch, const struct fd_tile *tile,
uint32_t buffers);