diff options
| author | Bas Nieuwenhuizen <[email protected]> | 2018-09-03 02:30:48 +0200 |
|---|---|---|
| committer | Andres Gomez <[email protected]> | 2018-09-03 16:32:43 +0300 |
| commit | a9377d363a568f3c49062f2ce3f65d23e6e53867 (patch) | |
| tree | 52c69c5a77642abd1f7f40138ce6d2e4b3d06c0a | |
| parent | 706e2a0215f5248280d71ab9b65cd084390a3160 (diff) | |
radv: Use a lower max offchip buffer count.
No clue what gets fixed by this but both radeonsi and amdvlk do it.
CC: <[email protected]>
Reviewed-by: Dave Airlie <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>
(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 79dbbd886d5..a7aa4cb3d58 100644 --- a/src/amd/vulkan/radv_device.c +++ b/src/amd/vulkan/radv_device.c @@ -1895,10 +1895,30 @@ 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); |