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drm/amdgpu: Reset IH OVERFLOW_EN bit for IH 7.0

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IH 7.0 support landed shortly after the original patch for resetting the
bit on all other generations, but without that patch applied.

Fixes: 12443fc53e ("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>
This commit is contained in:
Friedrich Vock 2024-03-10 06:40:40 +01:00 committed by Alex Deucher
parent 6540ff6482
commit c6ba60af01
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/ih_v7_0.c
View File

@ -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);
}