anv: Implement VK_KHR_performance_query

This has the same kernel requirements are VK_INTEL_performance_query

v2: Fix empty queue submit (Lionel)

v3: Fix autotool build issue (Piotr Byszewski)

v4: Fix Reset & Begin/End in same command buffer, using soft-pin &
    relocation on the same buffer won't work currently. This version
    uses a somewhat dirty trick in anv_execbuf_add_bo (Piotr Byszewski)

v5: Fix enumeration with null pointers for either pCounters or
    pCounterDescriptions (Piotr)
    Fix return condition on enumeration (Lionel)
    Set counter uuid using sha1 hashes (Lionel)

v6: Fix counters scope, should be COMMAND_KHR not COMMAND_BUFFER_KHR (Lionel)

v7: Rebase (Lionel)

v8: Rework checking for loaded queries (Lionel)

v9: Use new i915-perf interface

v10: Use anv_multialloc (Jason)

v11: Implement perf query passes using self modifying batches (Lionel)
     Limit support to softpin/gen8

v12: Remove spurious changes (Jason)

v13: Drop relocs (Jason)

v14: Avoid overwritting .sType in
     VkPerformanceCounterKHR/VkPerformanceCounterDescriptionKHR (Lionel)

v15: Don't copy the entire
     VkPerformanceCounterKHR/VkPerformanceCounterDescriptionKHR (Jason)
     Reuse anv_batch rather than custom packing (Jason)

v16: Fix missing MI_BB_END in reconfiguration batch
     Only report the extension with kernel support (perf_version >= 3)

v17: Some cleanup of unused stuff

Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/2775>

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