Re: [PATCH] drm/amdgpu: fix amdgpu_need_full_reset (v2)

[zhoucm1 <david1.zhou@xxxxxxx>]

On 2016年10月14日 05:22, Alex Deucher wrote:
> IP types are not an index.  Each asic may have number and
> type of IPs.  Properly check the the type rather than
> using the type id as an index.
>
> v2: fix all the IPs to not use IP type as an idx as well.
>
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Chunming Zhou <david1.zhou@xxxxxxx>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 23 ++++++++++++++++-------
>   drivers/gpu/drm/amd/amdgpu/dce_v10_0.c     | 12 ++----------
>   drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c      | 17 +++++++++--------
>   drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c      | 13 ++++++-------
>   drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c     | 14 ++++++--------
>   drivers/gpu/drm/amd/amdgpu/tonga_ih.c      | 14 ++++++--------
>   drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c      | 14 +++++++-------
>   drivers/gpu/drm/amd/amdgpu/vce_v3_0.c      | 15 +++++++--------
>   drivers/gpu/drm/amd/include/amd_shared.h   |  2 +-
>   9 files changed, 60 insertions(+), 64 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index 5a99a43..a67a572 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -2128,7 +2128,8 @@ static bool amdgpu_check_soft_reset(struct amdgpu_device *adev)
>   		if (!adev->ip_block_status[i].valid)
>   			continue;
>   		if (adev->ip_blocks[i].funcs->check_soft_reset)
> -			adev->ip_blocks[i].funcs->check_soft_reset(adev);
> +			adev->ip_block_status[i].hang =
> +				adev->ip_blocks[i].funcs->check_soft_reset(adev);
>   		if (adev->ip_block_status[i].hang) {
>   			DRM_INFO("IP block:%d is hang!\n", i);
>   			asic_hang = true;
> @@ -2157,12 +2158,20 @@ static int amdgpu_pre_soft_reset(struct amdgpu_device *adev)
>   
>   static bool amdgpu_need_full_reset(struct amdgpu_device *adev)
>   {
> -	if (adev->ip_block_status[AMD_IP_BLOCK_TYPE_GMC].hang ||
> -	    adev->ip_block_status[AMD_IP_BLOCK_TYPE_SMC].hang ||
> -	    adev->ip_block_status[AMD_IP_BLOCK_TYPE_ACP].hang ||
> -	    adev->ip_block_status[AMD_IP_BLOCK_TYPE_DCE].hang) {
> -		DRM_INFO("Some block need full reset!\n");
> -		return true;
> +	int i;
> +
> +	for (i = 0; i < adev->num_ip_blocks; i++) {
> +		if (!adev->ip_block_status[i].valid)
> +			continue;
> +		if ((adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_GMC) ||
> +		    (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_SMC) ||
> +		    (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_ACP) ||
> +		    (adev->ip_blocks[i].type == AMD_IP_BLOCK_TYPE_DCE)) {
> +			if (adev->ip_block_status[i].hang) {
> +				DRM_INFO("Some block need full reset!\n");
> +				return true;
> +			}
> +		}
>   	}
>   	return false;
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
> index bd0ecf4..15c3833 100644
> --- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
> @@ -3104,16 +3104,11 @@ static int dce_v10_0_wait_for_idle(void *handle)
>   	return 0;
>   }
>   
> -static int dce_v10_0_check_soft_reset(void *handle)
> +static bool dce_v10_0_check_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (dce_v10_0_is_display_hung(adev))
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_DCE].hang = true;
> -	else
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_DCE].hang = false;
> -
> -	return 0;
> +	return dce_v10_0_is_display_hung(adev);
>   }
>   
>   static int dce_v10_0_soft_reset(void *handle)
> @@ -3121,9 +3116,6 @@ static int dce_v10_0_soft_reset(void *handle)
>   	u32 srbm_soft_reset = 0, tmp;
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_DCE].hang)
> -		return 0;
> -
>   	if (dce_v10_0_is_display_hung(adev))
>   		srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_DC_MASK;
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index ed49e33..6f3996f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -5147,7 +5147,7 @@ static int gfx_v8_0_wait_for_idle(void *handle)
>   	return -ETIMEDOUT;
>   }
>   
> -static int gfx_v8_0_check_soft_reset(void *handle)
> +static bool gfx_v8_0_check_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
> @@ -5199,16 +5199,14 @@ static int gfx_v8_0_check_soft_reset(void *handle)
>   						SRBM_SOFT_RESET, SOFT_RESET_SEM, 1);
>   
>   	if (grbm_soft_reset || srbm_soft_reset) {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_GFX].hang = true;
>   		adev->gfx.grbm_soft_reset = grbm_soft_reset;
>   		adev->gfx.srbm_soft_reset = srbm_soft_reset;
> +		return true;
>   	} else {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_GFX].hang = false;
>   		adev->gfx.grbm_soft_reset = 0;
>   		adev->gfx.srbm_soft_reset = 0;
> +		return false;
>   	}
> -
> -	return 0;
>   }
>   
>   static void gfx_v8_0_inactive_hqd(struct amdgpu_device *adev,
> @@ -5236,7 +5234,8 @@ static int gfx_v8_0_pre_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_GFX].hang)
> +	if ((!adev->gfx.grbm_soft_reset) &&
> +	    (!adev->gfx.srbm_soft_reset))
>   		return 0;
>   
>   	grbm_soft_reset = adev->gfx.grbm_soft_reset;
> @@ -5274,7 +5273,8 @@ static int gfx_v8_0_soft_reset(void *handle)
>   	u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
>   	u32 tmp;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_GFX].hang)
> +	if ((!adev->gfx.grbm_soft_reset) &&
> +	    (!adev->gfx.srbm_soft_reset))
>   		return 0;
>   
>   	grbm_soft_reset = adev->gfx.grbm_soft_reset;
> @@ -5344,7 +5344,8 @@ static int gfx_v8_0_post_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_GFX].hang)
> +	if ((!adev->gfx.grbm_soft_reset) &&
> +	    (!adev->gfx.srbm_soft_reset))
>   		return 0;
>   
>   	grbm_soft_reset = adev->gfx.grbm_soft_reset;
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> index 1b319f5..c22ef14 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> @@ -1099,7 +1099,7 @@ static int gmc_v8_0_wait_for_idle(void *handle)
>   
>   }
>   
> -static int gmc_v8_0_check_soft_reset(void *handle)
> +static bool gmc_v8_0_check_soft_reset(void *handle)
>   {
>   	u32 srbm_soft_reset = 0;
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> @@ -1116,20 +1116,19 @@ static int gmc_v8_0_check_soft_reset(void *handle)
>   							SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
>   	}
>   	if (srbm_soft_reset) {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_GMC].hang = true;
>   		adev->mc.srbm_soft_reset = srbm_soft_reset;
> +		return true;
>   	} else {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_GMC].hang = false;
>   		adev->mc.srbm_soft_reset = 0;
> +		return false;
>   	}
> -	return 0;
>   }
>   
>   static int gmc_v8_0_pre_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_GMC].hang)
> +	if (!adev->mc.srbm_soft_reset)
>   		return 0;
>   
>   	gmc_v8_0_mc_stop(adev, &adev->mc.save);
> @@ -1145,7 +1144,7 @@ static int gmc_v8_0_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_GMC].hang)
> +	if (!adev->mc.srbm_soft_reset)
>   		return 0;
>   	srbm_soft_reset = adev->mc.srbm_soft_reset;
>   
> @@ -1175,7 +1174,7 @@ static int gmc_v8_0_post_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_GMC].hang)
> +	if (!adev->mc.srbm_soft_reset)
>   		return 0;
>   
>   	gmc_v8_0_mc_resume(adev, &adev->mc.save);
> diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> index 6f3a07f..24642f9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
> @@ -1251,7 +1251,7 @@ static int sdma_v3_0_wait_for_idle(void *handle)
>   	return -ETIMEDOUT;
>   }
>   
> -static int sdma_v3_0_check_soft_reset(void *handle)
> +static bool sdma_v3_0_check_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset = 0;
> @@ -1264,14 +1264,12 @@ static int sdma_v3_0_check_soft_reset(void *handle)
>   	}
>   
>   	if (srbm_soft_reset) {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_SDMA].hang = true;
>   		adev->sdma.srbm_soft_reset = srbm_soft_reset;
> +		return true;
>   	} else {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_SDMA].hang = false;
>   		adev->sdma.srbm_soft_reset = 0;
> +		return false;
>   	}
> -
> -	return 0;
>   }
>   
>   static int sdma_v3_0_pre_soft_reset(void *handle)
> @@ -1279,7 +1277,7 @@ static int sdma_v3_0_pre_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset = 0;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_SDMA].hang)
> +	if (!adev->sdma.srbm_soft_reset)
>   		return 0;
>   
>   	srbm_soft_reset = adev->sdma.srbm_soft_reset;
> @@ -1298,7 +1296,7 @@ static int sdma_v3_0_post_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset = 0;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_SDMA].hang)
> +	if (!adev->sdma.srbm_soft_reset)
>   		return 0;
>   
>   	srbm_soft_reset = adev->sdma.srbm_soft_reset;
> @@ -1318,7 +1316,7 @@ static int sdma_v3_0_soft_reset(void *handle)
>   	u32 srbm_soft_reset = 0;
>   	u32 tmp;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_SDMA].hang)
> +	if (!adev->sdma.srbm_soft_reset)
>   		return 0;
>   
>   	srbm_soft_reset = adev->sdma.srbm_soft_reset;
> diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
> index d127d59..b4ea229 100644
> --- a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
> @@ -373,7 +373,7 @@ static int tonga_ih_wait_for_idle(void *handle)
>   	return -ETIMEDOUT;
>   }
>   
> -static int tonga_ih_check_soft_reset(void *handle)
> +static bool tonga_ih_check_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset = 0;
> @@ -384,21 +384,19 @@ static int tonga_ih_check_soft_reset(void *handle)
>   						SOFT_RESET_IH, 1);
>   
>   	if (srbm_soft_reset) {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang = true;
>   		adev->irq.srbm_soft_reset = srbm_soft_reset;
> +		return true;
>   	} else {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang = false;
>   		adev->irq.srbm_soft_reset = 0;
> +		return false;
>   	}
> -
> -	return 0;
>   }
>   
>   static int tonga_ih_pre_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang)
> +	if (!adev->irq.srbm_soft_reset)
>   		return 0;
>   
>   	return tonga_ih_hw_fini(adev);
> @@ -408,7 +406,7 @@ static int tonga_ih_post_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang)
> +	if (!adev->irq.srbm_soft_reset)
>   		return 0;
>   
>   	return tonga_ih_hw_init(adev);
> @@ -419,7 +417,7 @@ static int tonga_ih_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang)
> +	if (!adev->irq.srbm_soft_reset)
>   		return 0;
>   	srbm_soft_reset = adev->irq.srbm_soft_reset;
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
> index 8f8a5dd..be91293 100644
> --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
> @@ -744,7 +744,7 @@ static int uvd_v6_0_wait_for_idle(void *handle)
>   }
>   
>   #define AMDGPU_UVD_STATUS_BUSY_MASK    0xfd
> -static int uvd_v6_0_check_soft_reset(void *handle)
> +static bool uvd_v6_0_check_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset = 0;
> @@ -756,19 +756,19 @@ static int uvd_v6_0_check_soft_reset(void *handle)
>   		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_UVD, 1);
>   
>   	if (srbm_soft_reset) {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang = true;
>   		adev->uvd.srbm_soft_reset = srbm_soft_reset;
> +		return true;
>   	} else {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang = false;
>   		adev->uvd.srbm_soft_reset = 0;
> +		return false;
>   	}
> -	return 0;
>   }
> +
>   static int uvd_v6_0_pre_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang)
> +	if (!adev->uvd.srbm_soft_reset)
>   		return 0;
>   
>   	uvd_v6_0_stop(adev);
> @@ -780,7 +780,7 @@ static int uvd_v6_0_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang)
> +	if (!adev->uvd.srbm_soft_reset)
>   		return 0;
>   	srbm_soft_reset = adev->uvd.srbm_soft_reset;
>   
> @@ -810,7 +810,7 @@ static int uvd_v6_0_post_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_UVD].hang)
> +	if (!adev->uvd.srbm_soft_reset)
>   		return 0;
>   
>   	mdelay(5);
> diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
> index c7ddbef..589fff1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
> @@ -560,7 +560,7 @@ static int vce_v3_0_wait_for_idle(void *handle)
>   #define  AMDGPU_VCE_STATUS_BUSY_MASK (VCE_STATUS_VCPU_REPORT_AUTO_BUSY_MASK | \
>   				      VCE_STATUS_VCPU_REPORT_RB0_BUSY_MASK)
>   
> -static int vce_v3_0_check_soft_reset(void *handle)
> +static bool vce_v3_0_check_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset = 0;
> @@ -590,16 +590,15 @@ static int vce_v3_0_check_soft_reset(void *handle)
>   		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE1, 1);
>   	}
>   	WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0);
> +	mutex_unlock(&adev->grbm_idx_mutex);
>   
>   	if (srbm_soft_reset) {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_VCE].hang = true;
>   		adev->vce.srbm_soft_reset = srbm_soft_reset;
> +		return true;
>   	} else {
> -		adev->ip_block_status[AMD_IP_BLOCK_TYPE_VCE].hang = false;
>   		adev->vce.srbm_soft_reset = 0;
> +		return false;
>   	}
> -	mutex_unlock(&adev->grbm_idx_mutex);
> -	return 0;
>   }
>   
>   static int vce_v3_0_soft_reset(void *handle)
> @@ -607,7 +606,7 @@ static int vce_v3_0_soft_reset(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	u32 srbm_soft_reset;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_VCE].hang)
> +	if (!adev->vce.srbm_soft_reset)
>   		return 0;
>   	srbm_soft_reset = adev->vce.srbm_soft_reset;
>   
> @@ -637,7 +636,7 @@ static int vce_v3_0_pre_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_VCE].hang)
> +	if (!adev->vce.srbm_soft_reset)
>   		return 0;
>   
>   	mdelay(5);
> @@ -650,7 +649,7 @@ static int vce_v3_0_post_soft_reset(void *handle)
>   {
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
> -	if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_VCE].hang)
> +	if (!adev->vce.srbm_soft_reset)
>   		return 0;
>   
>   	mdelay(5);
> diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h
> index 94ebc32..d198627 100644
> --- a/drivers/gpu/drm/amd/include/amd_shared.h
> +++ b/drivers/gpu/drm/amd/include/amd_shared.h
> @@ -188,7 +188,7 @@ struct amd_ip_funcs {
>   	/* poll for idle */
>   	int (*wait_for_idle)(void *handle);
>   	/* check soft reset the IP block */
> -	int (*check_soft_reset)(void *handle);
> +	bool (*check_soft_reset)(void *handle);
>   	/* pre soft reset the IP block */
>   	int (*pre_soft_reset)(void *handle);
>   	/* soft reset the IP block */

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