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iris: Align last_seqnos to 64 bits.

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last_seqnos is used in atomic operations. Specially on 32 bit platorms,
it tends to be slower if it's not aligned to 64 bits (see
cdc331c6f9). This fixes a small regression
on Bioshock.

Fixes: aba3aed96e ("iris: fix export of GEM handles")
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5637>
This commit is contained in:
Rafael Antognolli 2020-06-24 18:52:55 +00:00
parent 2fd746e98e
commit 293221ddda
1 changed files with 4 additions and 1 deletions
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5
src/gallium/drivers/iris/iris_bufmgr.h
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@ -203,8 +203,11 @@ struct iris_bo {
*
* Although this is a global field, use in multiple contexts should be
* safe, see iris_emit_buffer_barrier_for() for details.
*
* Also align it to 64 bits. This will make atomic operations faster on 32
* bit platforms.
*/
uint64_t last_seqnos[NUM_IRIS_DOMAINS];
uint64_t last_seqnos[NUM_IRIS_DOMAINS] __attribute__ ((aligned (8)));
/**
* Boolean of whether the GPU is definitely not accessing the buffer.