From 4a60c55b3b0f147acc95c350c11f2db4d4828d36 Mon Sep 17 00:00:00 2001 From: Tim Huang Date: Thu, 2 Jan 2025 18:20:18 +0800 Subject: [PATCH] drm/amdgpu: fix incorrect active RB bitmap in setup RBs The RB bitmap width per SA may be 0x1 for some ASICs. Use the actual bitmap of SA instead of 0x3 to determine the active RB bitmap. Signed-off-by: Tim Huang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c index fe5d7cd814f7..56c06b72a70a 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c @@ -1891,6 +1891,7 @@ static u32 gfx_v11_0_get_rb_active_bitmap(struct amdgpu_device *adev) static void gfx_v11_0_setup_rb(struct amdgpu_device *adev) { + u32 rb_bitmap_per_sa; u32 rb_bitmap_width_per_sa; u32 max_sa; u32 active_sa_bitmap; @@ -1908,9 +1909,11 @@ static void gfx_v11_0_setup_rb(struct amdgpu_device *adev) adev->gfx.config.max_sh_per_se; rb_bitmap_width_per_sa = adev->gfx.config.max_backends_per_se / adev->gfx.config.max_sh_per_se; + rb_bitmap_per_sa = amdgpu_gfx_create_bitmask(rb_bitmap_width_per_sa); + for (i = 0; i < max_sa; i++) { if (active_sa_bitmap & (1 << i)) - active_rb_bitmap |= (0x3 << (i * rb_bitmap_width_per_sa)); + active_rb_bitmap |= (rb_bitmap_per_sa << (i * rb_bitmap_width_per_sa)); } active_rb_bitmap &= global_active_rb_bitmap; -- 2.50.1