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freedreno: Add layout metadata support

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Add support to use layout metadata to communicate modifier between
exporter and importer.  This is required because EXT_external_objects
does not have modifier support, so when importing a memobj we must use
a back-channel to communicate the modifier with the exporter.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25945>
This commit is contained in:
Rob Clark
2023-10-28 08:24:46 -07:00
committed by Marge Bot
parent 32fa9bed12
commit 68c53ec2c2
1 changed files with 14 additions and 1 deletions
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src/gallium/drivers/freedreno/freedreno_resource.c
+14 -1
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@@ -1108,6 +1108,13 @@ fd_resource_get_handle(struct pipe_screen *pscreen, struct pipe_context *pctx,
handle->modifier = fd_resource_modifier(rsc);
if (prsc->target != PIPE_BUFFER) {
struct fdl_metadata metadata = {
.modifier = handle->modifier,
};
fd_bo_set_metadata(rsc->bo, &metadata, sizeof(metadata));
}
DBG("%" PRSC_FMT ", modifier=%" PRIx64, PRSC_ARGS(prsc), handle->modifier);
bool ret = fd_screen_bo_get_handle(pscreen, rsc->bo, rsc->scanout,
@@ -1661,14 +1668,20 @@ fd_resource_from_memobj(struct pipe_screen *pscreen,
struct fd_memory_object *memobj = fd_memory_object(pmemobj);
struct pipe_resource *prsc;
struct fd_resource *rsc;
struct fdl_metadata metadata;
uint32_t size;
assert(memobj->bo);
assert(offset == 0);
/* We shouldn't get a scanout buffer here. */
assert(!(tmpl->bind & PIPE_BIND_SCANOUT));
uint64_t modifiers = DRM_FORMAT_MOD_INVALID;
if (tmpl->bind & PIPE_BIND_LINEAR) {
if (pmemobj->dedicated &&
!fd_bo_get_metadata(memobj->bo, &metadata, sizeof(metadata))) {
modifiers = metadata.modifier;
} else if (tmpl->bind & PIPE_BIND_LINEAR) {
modifiers = DRM_FORMAT_MOD_LINEAR;
} else if (is_a6xx(screen) && tmpl->width0 >= FDL_MIN_UBWC_WIDTH) {
modifiers = DRM_FORMAT_MOD_QCOM_COMPRESSED;