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llvmpipe: add the interesting bit of cpu detection to the cache.

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This should detect if someone changes CPU configuration that matters like in a VM

Reviewed-by: Emma Anholt <emma@anholt.net>
Fixes: 6c0c61cb48 ("llvmpipe: add infrastructure for disk cache support")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10946>
This commit is contained in:
Dave Airlie 2021-05-24 05:19:43 +10:00 • committed by Marge Bot
parent 7403463508
commit 9520b70f75
1 changed files with 12 additions and 0 deletions
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12
src/gallium/drivers/llvmpipe/lp_screen.c
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@ -816,6 +816,17 @@ llvmpipe_get_timestamp(struct pipe_screen *_screen)
return os_time_get_nano();
}
static void update_cache_sha1_cpu(struct mesa_sha1 *ctx)
{
const struct util_cpu_caps_t *cpu_caps = util_get_cpu_caps();
/*
* Don't need the cpu cache affinity stuff. The rest
* is contained in first 5 dwords.
*/
STATIC_ASSERT(offsetof(struct util_cpu_caps_t, num_L3_caches) == 5 * sizeof(uint32_t));
_mesa_sha1_update(ctx, cpu_caps, 5 * sizeof(uint32_t));
}
static void lp_disk_cache_create(struct llvmpipe_screen *screen)
{
struct mesa_sha1 ctx;
@ -829,6 +840,7 @@ static void lp_disk_cache_create(struct llvmpipe_screen *screen)
return;
_mesa_sha1_update(&ctx, &gallivm_perf, sizeof(gallivm_perf));
update_cache_sha1_cpu(&ctx);
_mesa_sha1_final(&ctx, sha1);
disk_cache_format_hex_id(cache_id, sha1, 20 * 2);