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radeonsi: Add support for EGL_IMG_context_priority

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This allows creating high priority contexts when using radeonsi. It's
primarily intended for apps whose rendering commands must be processed
as soon as possible, e.g. wayland compositors.

Signed-off-by: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16594>
This commit is contained in:
Vlad Zahorodnii 2022-05-19 21:42:57 +03:00 • committed by Marge Bot
parent f4de4453cf
commit e20718e8fa
2 changed files with 23 additions and 1 deletions
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7
src/gallium/drivers/radeonsi/si_get.c
View file

@ -254,6 +254,13 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
case PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF:
return 0;
case PIPE_CAP_CONTEXT_PRIORITY_MASK:
if (!(sscreen->info.is_amdgpu && sscreen->info.drm_minor >= 22))
return 0;
return PIPE_CONTEXT_PRIORITY_LOW |
PIPE_CONTEXT_PRIORITY_MEDIUM |
PIPE_CONTEXT_PRIORITY_HIGH;
case PIPE_CAP_FENCE_SIGNAL:
return sscreen->info.has_syncobj;

17
src/gallium/drivers/radeonsi/si_pipe.c
View file

@ -501,10 +501,25 @@ static struct pipe_context *si_create_context(struct pipe_screen *screen, unsign
}
}
priority = RADEON_CTX_PRIORITY_MEDIUM;
if (flags & PIPE_CONTEXT_HIGH_PRIORITY) {
priority = RADEON_CTX_PRIORITY_HIGH;
} else if (flags & PIPE_CONTEXT_LOW_PRIORITY) {
priority = RADEON_CTX_PRIORITY_LOW;
} else {
priority = RADEON_CTX_PRIORITY_MEDIUM;
}
/* Initialize the context handle and the command stream. */
sctx->ctx = sctx->ws->ctx_create(sctx->ws, priority);
if (!sctx->ctx && priority != RADEON_CTX_PRIORITY_MEDIUM) {
/* Context priority should be treated as a hint. If context creation
* fails with the requested priority, for example because the caller
* lacks CAP_SYS_NICE capability or other system resource constraints,
* fallback to normal priority.
*/
priority = RADEON_CTX_PRIORITY_MEDIUM;
sctx->ctx = sctx->ws->ctx_create(sctx->ws, priority);
}
if (!sctx->ctx) {
fprintf(stderr, "radeonsi: can't create radeon_winsys_ctx\n");
goto fail;