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anv: add a new NO_LOCAL_MEM allocation flag

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We found a perf regression with 9027c5df4c ("anv: remove the
LOCAL_MEM allocation bit") which seems to be that we over subscribe
local memory, leading i915 to swap things in/out too much.

This change avoid putting buffers in local memory if they are not
allocated from a DEVICE_LOCAL heap.

Maybe we can revisit this later if i915 is better able to deal with
more buffers in local memory.

v2: Remove implicit_css from anv_bo when not in lmem (Ivan)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: 9027c5df4c ("anv: remove the LOCAL_MEM allocation bit")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7188
Reviewed-by: Ivan Briano <ivan.briano@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18395>
This commit is contained in:
Lionel Landwerlin
2022-09-02 21:53:18 +03:00
committed by Marge Bot
parent f41a6504a1
commit 492761ab8d
3 changed files with 15 additions and 4 deletions
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3
src/intel/vulkan/anv_private.h
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@@ -1237,6 +1237,9 @@ enum anv_bo_alloc_flags {
/** This buffer is allocated from local memory and should be cpu visible */
ANV_BO_ALLOC_LOCAL_MEM_CPU_VISIBLE = (1 << 10),
/** For non device local allocations */
ANV_BO_ALLOC_NO_LOCAL_MEM = (1 << 11),
};
VkResult anv_device_alloc_bo(struct anv_device *device,