Module: Mesa Branch: main Commit: 005b5b1464518201dbb25907094268e0e0ca4cb3 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=005b5b1464518201dbb25907094268e0e0ca4cb3
Author: Faith Ekstrand <faith.ekstr...@collabora.com> Date: Mon Jan 8 12:00:13 2024 -0600 nvk: Set a minimum of one patch control point Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27049> --- src/nouveau/vulkan/nvk_cmd_draw.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/nouveau/vulkan/nvk_cmd_draw.c b/src/nouveau/vulkan/nvk_cmd_draw.c index 4ef277c982f..f0b2df87922 100644 --- a/src/nouveau/vulkan/nvk_cmd_draw.c +++ b/src/nouveau/vulkan/nvk_cmd_draw.c @@ -1030,7 +1030,10 @@ nvk_flush_ts_state(struct nvk_cmd_buffer *cmd) struct nv_push *p = nvk_cmd_buffer_push(cmd, 4); if (BITSET_TEST(dyn->dirty, MESA_VK_DYNAMIC_TS_PATCH_CONTROL_POINTS)) { - P_IMMD(p, NV9097, SET_PATCH, dyn->ts.patch_control_points); + /* The hardware gets grumpy if we set this to 0 so make sure we set it + * to at least 1 in case it's dirty but uninitialized. + */ + P_IMMD(p, NV9097, SET_PATCH, MAX2(1, dyn->ts.patch_control_points)); } if (BITSET_TEST(dyn->dirty, MESA_VK_DYNAMIC_TS_DOMAIN_ORIGIN)) {
