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authorQiang Yu <yuq825@gmail.com>2023-04-04 09:42:24 +0800
committerDylan Baker <dylan.c.baker@intel.com>2023-04-20 16:05:03 -0700
commit1d2c0192cfe4d58b5a7042ec91ac6567ffefa96f (patch)
treea0b65311e938546519f946ddca23047f58205923
parent8405693c330069afbae75aa536aa3bd54e6125cd (diff)
downloadmesa-1d2c0192cfe4d58b5a7042ec91ac6567ffefa96f.tar.gz
radeonsi: fix max scrach lds size calculation when ngg
Fixes: 028d0590f85 ("radeonsi: replace llvm ngg vs/tes with nir lowering") Reviewed-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Qiang Yu <yuq825@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22304> (cherry picked from commit fc3d8e1125524eb8f7dfdefd6ca2a716c68c0e7d) Conflicts: src/gallium/drivers/radeonsi/gfx10_shader_ngg.c
-rw-r--r--.pick_status.json2
-rw-r--r--src/gallium/drivers/radeonsi/gfx10_shader_ngg.c8
2 files changed, 5 insertions, 5 deletions
diff --git a/.pick_status.json b/.pick_status.json
index 1657fa4899c..37c9178c4fa 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -5924,7 +5924,7 @@
"description": "radeonsi: fix max scrach lds size calculation when ngg",
"nominated": true,
"nomination_type": 1,
- "resolution": 0,
+ "resolution": 1,
"main_sha": null,
"because_sha": "028d0590f85c418cf470510cafcbe8026c2c4208",
"notes": null
diff --git a/src/gallium/drivers/radeonsi/gfx10_shader_ngg.c b/src/gallium/drivers/radeonsi/gfx10_shader_ngg.c
index 2392e73bee2..b9c0c51799e 100644
--- a/src/gallium/drivers/radeonsi/gfx10_shader_ngg.c
+++ b/src/gallium/drivers/radeonsi/gfx10_shader_ngg.c
@@ -163,10 +163,10 @@ bool gfx10_ngg_calculate_subgroup_info(struct si_shader *shader)
const unsigned max_verts_per_prim = u_vertices_per_prim(input_prim);
const unsigned min_verts_per_prim = gs_stage == MESA_SHADER_GEOMETRY ? max_verts_per_prim : 1;
- /* All these are in dwords: */
- /* GE can only use 8K dwords (32KB) of LDS per workgroup.
- */
- const unsigned max_lds_size = 8 * 1024 - gfx10_ngg_get_scratch_dw_size(shader);
+ /* All these are in dwords. The maximum is 16K dwords (64KB) of LDS per workgroup. */
+ const unsigned scratch_lds_size = gfx10_ngg_get_scratch_dw_size(shader);
+ /* Scrach is at last of LDS space and 2 dwords aligned, so it may cost more for alignment. */
+ const unsigned max_lds_size = 16 * 1024 - ALIGN(scratch_lds_size, 2);
const unsigned target_lds_size = max_lds_size;
unsigned esvert_lds_size = 0;
unsigned gsprim_lds_size = 0;