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XeHP scratch space is handled differently. Commitae18e1e707implemented support for it, but handled it differently between render and compute shaders: it calculates scratch_addr differently and doesn't pin the buffer on compute. Make it work on compute shaders by calling pin_scratch_space() from iris_compute_walker(), which fixes both the address and the pinning. This commit can be verified by the two-year-old-but-still-unreviewed Piglit MR 234. You can also verify this by running a very simple compute shader with INTEL_DEBUG=spill_fs. References: https://gitlab.freedesktop.org/mesa/piglit/-/merge_requests/234 Fixes:ae18e1e707("iris: Add support for scratch on XeHP") Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15070>
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