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For renderable surfaces, we allocate SURFACE_STATEs for each bit in
res->aux.possible_usages. Sampler views use res->aux.sampler_usages.
When pinning buffers, we call surf_state_offset_for_aux() to calculate
the offset to the desired surface state. surf_state_offset_for_aux()
took an aux_modes parameter, which should be one of those two fields.
However...it was not using that parameter. It always used the broader
res->aux.possible_usages field directly.
One of the callers, update_clear_value(), was passing incorrect masks
for this parameter. It iterated through the bits in order, using
u_bit_scan(), which destructively modifies the mask. So each time we
called it, the count of bits before our selected mode was 0, which would
cause us to always update the SURFACE_STATE for ISL_AUX_USAGE_NONE,
rather than updating each in turn. This was hidden by the earlier bug
where surf_state_offset_for_aux() ignored the parameter.
Fixes:
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| .. | ||
| amd | ||
| broadcom | ||
| compiler | ||
| drm-shim | ||
| egl | ||
| etnaviv | ||
| freedreno | ||
| gallium | ||
| gbm | ||
| getopt | ||
| glx | ||
| gtest | ||
| hgl | ||
| imgui | ||
| intel | ||
| loader | ||
| mapi | ||
| mesa | ||
| panfrost | ||
| util | ||
| vulkan | ||
| meson.build | ||
| SConscript | ||