From 568f1504098f6204bcc842d66be0126764cb7d13 Mon Sep 17 00:00:00 2001 From: Samuel Pitoiset Date: Thu, 20 Feb 2020 08:50:29 +0100 Subject: [PATCH] radv/gfx10: adjust the LDS size used to compute waves It's 128KB per CU in WGP. Signed-off-by: Samuel Pitoiset Reviewed-by: Bas Nieuwenhuizen Part-of: --- src/amd/vulkan/radv_shader.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c index cad95f830aa..1220b4ae8b7 100644 --- a/src/amd/vulkan/radv_shader.c +++ b/src/amd/vulkan/radv_shader.c @@ -1336,11 +1336,9 @@ radv_get_max_waves(struct radv_device *device, RADV_NUM_PHYSICAL_VGPRS / vgprs); } - /* LDS is 64KB per CU (4 SIMDs), divided into 16KB blocks per SIMD - * that PS can use. - */ + unsigned max_lds_per_simd = device->physical_device->rad_info.lds_size_per_cu / device->physical_device->rad_info.num_simd_per_compute_unit; if (lds_per_wave) - max_simd_waves = MIN2(max_simd_waves, 16384 / lds_per_wave); + max_simd_waves = MIN2(max_simd_waves, max_lds_per_simd / lds_per_wave); return max_simd_waves; } -- 2.30.2