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authorPaolo Bonzini <pbonzini@redhat.com>2021-07-08 13:15:57 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2021-07-14 12:14:27 -0400
commitf3cf800778e9e76b2387d00c9bfbc2e16efdb7ed (patch)
tree783e27546a8d65df254f59b5a024dc42eb390582 /drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
parentb8917b4ae44d1b945f6fba3d8ee6777edb44633b (diff)
parentcd4220d23bf3f43cf720e82bdee681f383433ae2 (diff)
Merge tag 'kvm-s390-master-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: selftests: Fixes - provide memory model for IBM z196 and zEC12 - do not require 64GB of memory
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 516467e962b7..c09225d065c2 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3673,8 +3673,12 @@ static int gfx_v9_0_kiq_init_register(struct amdgpu_ring *ring)
if (ring->use_doorbell) {
WREG32_SOC15(GC, 0, mmCP_MEC_DOORBELL_RANGE_LOWER,
(adev->doorbell_index.kiq * 2) << 2);
+ /* If GC has entered CGPG, ringing doorbell > first page doesn't
+ * wakeup GC. Enlarge CP_MEC_DOORBELL_RANGE_UPPER to workaround
+ * this issue.
+ */
WREG32_SOC15(GC, 0, mmCP_MEC_DOORBELL_RANGE_UPPER,
- (adev->doorbell_index.userqueue_end * 2) << 2);
+ (adev->doorbell.size - 4));
}
WREG32_SOC15_RLC(GC, 0, mmCP_HQD_PQ_DOORBELL_CONTROL,