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drm/amdgpu: Reset IH OVERFLOW_CLEAR bit

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Allows us to detect subsequent IH ring buffer overflows as well.

Cc: Joshua Ashton <joshua@froggi.es>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
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
2024-01-23 12:52:03 +01:00
committed by Alex Deucher
parent 615dd56ac5
commit 9217b91c64
10 changed files with 59 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/cik_ih.c
View File

@@ -204,6 +204,12 @@ static u32 cik_ih_get_wptr(struct amdgpu_device *adev,
tmp = RREG32(mmIH_RB_CNTL);
tmp |= IH_RB_CNTL__WPTR_OVERFLOW_CLEAR_MASK;
WREG32(mmIH_RB_CNTL, tmp);
/* Unset the CLEAR_OVERFLOW bit immediately so new overflows
* can be detected.
*/
tmp &= ~IH_RB_CNTL__WPTR_OVERFLOW_CLEAR_MASK;
WREG32(mmIH_RB_CNTL, tmp);
}
return (wptr & ih->ptr_mask);
}

5
drivers/gpu/drm/amd/amdgpu/cz_ih.c
View File

@@ -216,6 +216,11 @@ static u32 cz_ih_get_wptr(struct amdgpu_device *adev,
tmp = REG_SET_FIELD(tmp, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1);
WREG32(mmIH_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(mmIH_RB_CNTL, tmp);
out:
return (wptr & ih->ptr_mask);

5
drivers/gpu/drm/amd/amdgpu/iceland_ih.c
View File

@@ -215,6 +215,11 @@ static u32 iceland_ih_get_wptr(struct amdgpu_device *adev,
tmp = REG_SET_FIELD(tmp, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1);
WREG32(mmIH_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(mmIH_RB_CNTL, tmp);
out:
return (wptr & ih->ptr_mask);

6
drivers/gpu/drm/amd/amdgpu/ih_v6_0.c
View File

@@ -418,6 +418,12 @@ static u32 ih_v6_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);
}

7
drivers/gpu/drm/amd/amdgpu/ih_v6_1.c
View File

@@ -418,6 +418,13 @@ static u32 ih_v6_1_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);
}

6
drivers/gpu/drm/amd/amdgpu/navi10_ih.c
View File

@@ -442,6 +442,12 @@ static u32 navi10_ih_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);
}

6
drivers/gpu/drm/amd/amdgpu/si_ih.c
View File

@@ -119,6 +119,12 @@ static u32 si_ih_get_wptr(struct amdgpu_device *adev,
tmp = RREG32(IH_RB_CNTL);
tmp |= IH_RB_CNTL__WPTR_OVERFLOW_CLEAR_MASK;
WREG32(IH_RB_CNTL, tmp);
/* Unset the CLEAR_OVERFLOW bit immediately so new overflows
* can be detected.
*/
tmp &= ~IH_RB_CNTL__WPTR_OVERFLOW_CLEAR_MASK;
WREG32(IH_RB_CNTL, tmp);
}
return (wptr & ih->ptr_mask);
}

6
drivers/gpu/drm/amd/amdgpu/tonga_ih.c
View File

@@ -219,6 +219,12 @@ static u32 tonga_ih_get_wptr(struct amdgpu_device *adev,
tmp = REG_SET_FIELD(tmp, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1);
WREG32(mmIH_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(mmIH_RB_CNTL, tmp);
out:
return (wptr & ih->ptr_mask);
}

6
drivers/gpu/drm/amd/amdgpu/vega10_ih.c
View File

@@ -373,6 +373,12 @@ static u32 vega10_ih_get_wptr(struct amdgpu_device *adev,
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);
}

6
drivers/gpu/drm/amd/amdgpu/vega20_ih.c
View File

@@ -421,6 +421,12 @@ static u32 vega20_ih_get_wptr(struct amdgpu_device *adev,
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);
}