fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-01-08 08:30:10 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

freedreno: keep track of buffer valid ranges

Browse source 
Copies nouveau_buffer and radeon_buffer. This allows a write to proceed
to an uninitialized part of a buffer even when the GPU is using the
previously-initialized portions.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Ilia Mirkin 2015-04-03 02:15:17 -04:00 • committed by Rob Clark
parent dacf22e0a3
commit bde2045fa2
2 changed files with 27 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
src/gallium/drivers/freedreno/freedreno_resource.c
View file

@ -59,12 +59,19 @@ realloc_bo(struct fd_resource *rsc, uint32_t size)
rsc->timestamp = 0;
rsc->dirty = rsc->reading = false;
list_delinit(&rsc->list);
util_range_set_empty(&rsc->valid_buffer_range);
}
static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
struct pipe_transfer *ptrans,
const struct pipe_box *box)
{
struct fd_resource *rsc = fd_resource(ptrans->resource);
if (ptrans->resource->target == PIPE_BUFFER)
util_range_add(&rsc->valid_buffer_range,
ptrans->box.x + box->x,
ptrans->box.x + box->x + box->width);
}
static void
@ -75,6 +82,11 @@ fd_resource_transfer_unmap(struct pipe_context *pctx,
struct fd_resource *rsc = fd_resource(ptrans->resource);
if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED))
fd_bo_cpu_fini(rsc->bo);
util_range_add(&rsc->valid_buffer_range,
ptrans->box.x,
ptrans->box.x + ptrans->box.width);
pipe_resource_reference(&ptrans->resource, NULL);
util_slab_free(&ctx->transfer_pool, ptrans);
}
@ -120,6 +132,13 @@ fd_resource_transfer_map(struct pipe_context *pctx,
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
realloc_bo(rsc, fd_bo_size(rsc->bo));
} else if ((usage & PIPE_TRANSFER_WRITE) &&
prsc->target == PIPE_BUFFER &&
!util_ranges_intersect(&rsc->valid_buffer_range,
box->x, box->x + box->width)) {
/* We are trying to write to a previously uninitialized range. No need
* to wait.
*/
} else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
/* If the GPU is writing to the resource, or if it is reading from the
* resource and we're trying to write to it, flush the renders.
@ -172,6 +191,7 @@ fd_resource_destroy(struct pipe_screen *pscreen,
if (rsc->bo)
fd_bo_del(rsc->bo);
list_delinit(&rsc->list);
util_range_destroy(&rsc->valid_buffer_range);
FREE(rsc);
}
@ -282,6 +302,8 @@ fd_resource_create(struct pipe_screen *pscreen,
list_inithead(&rsc->list);
prsc->screen = pscreen;
util_range_init(&rsc->valid_buffer_range);
rsc->base.vtbl = &fd_resource_vtbl;
rsc->cpp = util_format_get_blocksize(tmpl->format);
@ -346,6 +368,8 @@ fd_resource_from_handle(struct pipe_screen *pscreen,
list_inithead(&rsc->list);
prsc->screen = pscreen;
util_range_init(&rsc->valid_buffer_range);
rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
if (!rsc->bo)
goto fail;

3
src/gallium/drivers/freedreno/freedreno_resource.h
View file

@ -30,6 +30,7 @@
#define FREEDRENO_RESOURCE_H_
#include "util/u_double_list.h"
#include "util/u_range.h"
#include "util/u_transfer.h"
#include "freedreno_util.h"
@ -68,6 +69,8 @@ struct fd_resource {
struct fd_resource_slice slices[MAX_MIP_LEVELS];
uint32_t timestamp;
bool dirty, reading;
/* buffer range that has been initialized */
struct util_range valid_buffer_range;
struct list_head list;
};