iris/bufmgr: Set mmap_mode to IRIS_MMAP_NONE for lmem in small-BAR mode
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Suggested-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17349>
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@ -1079,8 +1079,14 @@ iris_bo_alloc(struct iris_bufmgr *bufmgr,
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(bufmgr->vram.size > 0 && !local) ||
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(flags & BO_ALLOC_COHERENT);
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bool is_scanout = (flags & BO_ALLOC_SCANOUT) != 0;
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enum iris_mmap_mode mmap_mode =
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!local && is_coherent && !is_scanout ? IRIS_MMAP_WB : IRIS_MMAP_WC;
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enum iris_mmap_mode mmap_mode;
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if (!bufmgr->all_vram_mappable && heap == IRIS_HEAP_DEVICE_LOCAL)
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mmap_mode = IRIS_MMAP_NONE;
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else if (!local && is_coherent && !is_scanout)
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mmap_mode = IRIS_MMAP_WB;
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else
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mmap_mode = IRIS_MMAP_WC;
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simple_mtx_lock(&bufmgr->lock);
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