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| author | Friedrich Vock <friedrich.vock@gmx.de> | 2024-03-10 06:40:40 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-03-20 13:12:57 -0400 |
| commit | c6ba60af015a0cc42bec5ca1cdc28a108958363a (patch) | |
| tree | e378e7352d7933444dcbeb418bdea1cab1bd9be3 | |
| parent | 6540ff6482c1a5a6890ae44b23d0852ba1986d9e (diff) | |
| download | linux-c6ba60af015a0cc42bec5ca1cdc28a108958363a.tar.gz | |
drm/amdgpu: Reset IH OVERFLOW_EN bit for IH 7.0
IH 7.0 support landed shortly after the original patch for resetting the
bit on all other generations, but without that patch applied.
Fixes: 12443fc53e7d ("drm/amdgpu: Add ih v7_0 ip block support")
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Friedrich Vock <friedrich.vock@gmx.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/ih_v7_0.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/ih_v7_0.c b/drivers/gpu/drm/amd/amdgpu/ih_v7_0.c index 16fe428c0722d..7aed96fa10a9d 100644 --- a/drivers/gpu/drm/amd/amdgpu/ih_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/ih_v7_0.c @@ -418,6 +418,12 @@ static u32 ih_v7_0_get_wptr(struct amdgpu_device *adev, tmp = RREG32_NO_KIQ(ih_regs->ih_rb_cntl); tmp = REG_SET_FIELD(tmp, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1); WREG32_NO_KIQ(ih_regs->ih_rb_cntl, tmp); + + /* Unset the CLEAR_OVERFLOW bit immediately so new overflows + * can be detected. + */ + tmp = REG_SET_FIELD(tmp, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 0); + WREG32_NO_KIQ(ih_regs->ih_rb_cntl, tmp); out: return (wptr & ih->ptr_mask); } |