diff options
| author | Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> | 2018-09-03 02:30:48 +0200 |
|---|---|---|
| committer | Dylan Baker <dylan@pnwbakers.com> | 2018-09-04 08:50:14 -0700 |
| commit | 1063fbe6cc70da0a39c0393116daf904783ce60a (patch) | |
| tree | 0cb3dc6ebed271e1e749f341c81b32604f685045 | |
| parent | 5872b1522aed0f07d86fb219aa57e364a95cfff8 (diff) | |
radv: Use a lower max offchip buffer count.
No clue what gets fixed by this but both radeonsi and amdvlk do it.
CC: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
(cherry picked from commit ab64891f4c6ebab214b84debb1254b134d6c7c64)
| -rw-r--r-- | src/amd/vulkan/radv_device.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c index aced3eee399..57621bd972a 100644 --- a/src/amd/vulkan/radv_device.c +++ b/src/amd/vulkan/radv_device.c @@ -1860,10 +1860,30 @@ radv_get_hs_offchip_param(struct radv_device *device, uint32_t *max_offchip_buff device->physical_device->rad_info.family != CHIP_CARRIZO && device->physical_device->rad_info.family != CHIP_STONEY; unsigned max_offchip_buffers_per_se = double_offchip_buffers ? 128 : 64; - unsigned max_offchip_buffers = max_offchip_buffers_per_se * - device->physical_device->rad_info.max_se; + unsigned max_offchip_buffers; unsigned offchip_granularity; unsigned hs_offchip_param; + + /* + * Per RadeonSI: + * This must be one less than the maximum number due to a hw limitation. + * Various hardware bugs in SI, CIK, and GFX9 need this. + * + * Per AMDVLK: + * Vega10 should limit max_offchip_buffers to 508 (4 * 127). + * Gfx7 should limit max_offchip_buffers to 508 + * Gfx6 should limit max_offchip_buffers to 126 (2 * 63) + * + * Follow AMDVLK here. + */ + if (device->physical_device->rad_info.family == CHIP_VEGA10 || + device->physical_device->rad_info.chip_class == CIK || + device->physical_device->rad_info.chip_class == SI) + --max_offchip_buffers_per_se; + + max_offchip_buffers = max_offchip_buffers_per_se * + device->physical_device->rad_info.max_se; + switch (device->tess_offchip_block_dw_size) { default: assert(0); |