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radeonsi: remove the NGG hack decreasing LDS usage to deal with overflows

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The LDS size can't overflow anymore, so we can use the correct max LDS size.

Fixes: a23802bcb9 - ac,radeonsi: start adding support for gfx10.3

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6137>
This commit is contained in:
Marek Olšák 2020-07-30 08:32:15 -04:00
parent 97456e847e
commit e2e700f605
1 changed files with 2 additions and 7 deletions
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9
src/gallium/drivers/radeonsi/gfx10_shader_ngg.c
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@ -1917,14 +1917,9 @@ bool gfx10_ngg_calculate_subgroup_info(struct si_shader *shader)
const unsigned min_verts_per_prim = gs_type == PIPE_SHADER_GEOMETRY ? max_verts_per_prim : 1;
/* All these are in dwords: */
/* We can't allow using the whole LDS, because GS waves compete with
* other shader stages for LDS space.
*
* TODO: We should really take the shader's internal LDS use into
* account. The linker will fail if the size is greater than
* 8K dwords.
/* GE can only use 8K dwords (32KB) of LDS per workgroup.
*/
const unsigned max_lds_size = 8 * 1024 - 768;
const unsigned max_lds_size = 8 * 1024 - gfx10_ngg_get_scratch_dw_size(shader);
const unsigned target_lds_size = max_lds_size;
unsigned esvert_lds_size = 0;
unsigned gsprim_lds_size = 0;