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ac/surface: Filter swizzle modes for VCN

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This will allow compatible swizzle modes to be picked for RADV (radeonsi
filters modifiers when creating video surfaces).

This mirrors the logic from ac_modifier_supports_video, and in
addition ensures that XOR swizzle modes are disabled for image arrays
because VCN does not support slice indices.

Reviewed-by: David Rosca <david.rosca@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40948>
This commit is contained in:
Benjamin Cheng 2026-04-14 09:40:43 -04:00 • committed by Marge Bot
parent 713cecb1df
commit fcaab2b921
1 changed files with 14 additions and 0 deletions
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14
src/amd/common/ac_surface.c
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@ -2017,6 +2017,20 @@ static int gfx9_get_preferred_swizzle_mode(struct ac_addrlib *addrlib, const str
sin.forbiddenBlock.gfx11.thick256KB = 1;
}
if (surf->flags & (RADEON_SURF_DECODE_DST | RADEON_SURF_ENCODE_SRC)) {
assert(info->vcn_ip_version >= VCN_2_0_0);
/* Only "S" swizzle modes supported */
if (info->vcn_ip_version < VCN_3_0_0) {
sin.preferredSwSet.value = 0;
sin.preferredSwSet.sw_S = 1;
}
/* Video cannot support XOR modes for image arrays */
if (in->numSlices > 1)
sin.noXor = 1;
}
ret = Addr2GetPreferredSurfaceSetting(addrlib->handle, &sin, &sout);
if (ret != ADDR_OK)
return ret;