From 6b34d0328b51b7bc226290916c56242549062983 Mon Sep 17 00:00:00 2001 From: Tim Huang Date: Mon, 6 Jan 2025 13:30:06 +0800 Subject: [PATCH 1462/5403] drm/amdgpu: fix incorrect number of active RBs for gfx12 The RB bitmap should be global active RB bitmap & active RB bitmap based on active SA. Signed-off-by: Tim Huang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c index 814fbef78133..4b6e05750654 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c @@ -1623,6 +1623,7 @@ static u32 gfx_v12_0_get_rb_active_bitmap(struct amdgpu_device *adev) static void gfx_v12_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; @@ -1640,12 +1641,14 @@ static void gfx_v12_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; + active_rb_bitmap &= global_active_rb_bitmap; adev->gfx.config.backend_enable_mask = active_rb_bitmap; adev->gfx.config.num_rbs = hweight32(active_rb_bitmap); } -- 2.54.0