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radv/winsys: Fail early on overgrown cs.

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When !use_ib_bos, we can't easily chain ibs one to another. If the
required cs size grows over 1Mi - 8 dwords just fail the cs so that we
won't assert-fail in radv_amdgpu_winsys_cs_submit later on.

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Gustaw Smolarczyk
2016-10-13 22:54:12 +02:00
committed by Bas Nieuwenhuizen
parent 493237d4ee
commit 36cb5508e8
1 changed files with 14 additions and 4 deletions
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18
src/amd/vulkan/winsys/amdgpu/radv_amdgpu_cs.c
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@@ -187,12 +187,22 @@ static void radv_amdgpu_cs_grow(struct radeon_winsys_cs *_cs, size_t min_size)
}
if (!cs->ws->use_ib_bos) {
uint64_t ib_size = MAX2((cs->base.cdw + min_size) * 4 + 16,
cs->base.max_dw * 4 * 2);
uint32_t *new_buf = realloc(cs->base.buf, ib_size);
const uint64_t limit_dws = 0xffff8;
uint64_t ib_dws = MAX2(cs->base.cdw + min_size,
MIN2(cs->base.max_dw * 2, limit_dws));
/* The total ib size cannot exceed limit_dws dwords. */
if (ib_dws > limit_dws)
{
cs->failed = true;
cs->base.cdw = 0;
return;
}
uint32_t *new_buf = realloc(cs->base.buf, ib_dws * 4);
if (new_buf) {
cs->base.buf = new_buf;
cs->base.max_dw = ib_size / 4;
cs->base.max_dw = ib_dws;
} else {
cs->failed = true;
cs->base.cdw = 0;