[PATCH v2 1/3] drm/amdgpu: Added ISR for CP ECC/EDC interrupt v2.

[Andrey Grodzovsky]

Ping for the series.

Andrey


On 06/07/2018 06:19 PM, Andrey Grodzovsky wrote:
> From: David Panariti <David.Panariti at amd.com>
>
> ISR will DRM_ERROR ECC error message.
>
> v2:
> Remove CZ only limitation.
> Rebase.
>
> Signed-off-by: David Panariti <David.Panariti at amd.com>
> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu.h   |  1 +
>   drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 75 +++++++++++++++++++++++++++++++++++
>   2 files changed, 76 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index 2d75009..76ad632 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -968,6 +968,7 @@ struct amdgpu_gfx {
>   	struct amdgpu_irq_src		eop_irq;
>   	struct amdgpu_irq_src		priv_reg_irq;
>   	struct amdgpu_irq_src		priv_inst_irq;
> +	struct amdgpu_irq_src		cp_ecc_error_irq;
>   	/* gfx status */
>   	uint32_t			gfx_current_status;
>   	/* ce ram size*/
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 818874b..b96dc08 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -2048,6 +2048,12 @@ static int gfx_v8_0_sw_init(void *handle)
>   	if (r)
>   		return r;
>   
> +	/* Add CP EDC/ECC irq  */
> +	r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 197,
> +			      &adev->gfx.cp_ecc_error_irq);
> +	if (r)
> +		return r;
> +
>   	adev->gfx.gfx_current_status = AMDGPU_GFX_NORMAL_MODE;
>   
>   	gfx_v8_0_scratch_init(adev);
> @@ -5111,6 +5117,8 @@ static int gfx_v8_0_hw_fini(void *handle)
>   	amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0);
>   	amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0);
>   
> +	amdgpu_irq_put(adev, &adev->gfx.cp_ecc_error_irq, 0);
> +
>   	/* disable KCQ to avoid CPC touch memory not valid anymore */
>   	for (i = 0; i < adev->gfx.num_compute_rings; i++)
>   		gfx_v8_0_kcq_disable(&adev->gfx.kiq.ring, &adev->gfx.compute_ring[i]);
> @@ -5542,6 +5550,12 @@ static int gfx_v8_0_late_init(void *handle)
>   	if (r)
>   		return r;
>   
> +	r = amdgpu_irq_get(adev, &adev->gfx.cp_ecc_error_irq, 0);
> +	if (r) {
> +		DRM_ERROR("amdgpu_irq_get() failed to get IRQ for EDC, r: %d.\n", r);
> +		return r;
> +	}
> +
>   	amdgpu_device_ip_set_powergating_state(adev,
>   					       AMD_IP_BLOCK_TYPE_GFX,
>   					       AMD_PG_STATE_GATE);
> @@ -6787,6 +6801,51 @@ static int gfx_v8_0_set_eop_interrupt_state(struct amdgpu_device *adev,
>   	return 0;
>   }
>   
> +static int gfx_v8_0_set_cp_ecc_int_state(struct amdgpu_device *adev,
> +					 struct amdgpu_irq_src *source,
> +					 unsigned int type,
> +					 enum amdgpu_interrupt_state state)
> +{
> +	int enable_flag;
> +
> +	switch (state) {
> +	case AMDGPU_IRQ_STATE_DISABLE:
> +		enable_flag = 0;
> +		break;
> +
> +	case AMDGPU_IRQ_STATE_ENABLE:
> +		enable_flag = 1;
> +		break;
> +
> +	default:
> +		return -EINVAL;
> +	}
> +
> +	WREG32_FIELD(CP_INT_CNTL, CP_ECC_ERROR_INT_ENABLE, enable_flag);
> +	WREG32_FIELD(CP_INT_CNTL_RING0, CP_ECC_ERROR_INT_ENABLE, enable_flag);
> +	WREG32_FIELD(CP_INT_CNTL_RING1, CP_ECC_ERROR_INT_ENABLE, enable_flag);
> +	WREG32_FIELD(CP_INT_CNTL_RING2, CP_ECC_ERROR_INT_ENABLE, enable_flag);
> +	WREG32_FIELD(CPC_INT_CNTL, CP_ECC_ERROR_INT_ENABLE, enable_flag);
> +	WREG32_FIELD(CP_ME1_PIPE0_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +	WREG32_FIELD(CP_ME1_PIPE1_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +	WREG32_FIELD(CP_ME1_PIPE2_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +	WREG32_FIELD(CP_ME1_PIPE3_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +	WREG32_FIELD(CP_ME2_PIPE0_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +	WREG32_FIELD(CP_ME2_PIPE1_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +	WREG32_FIELD(CP_ME2_PIPE2_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +	WREG32_FIELD(CP_ME2_PIPE3_INT_CNTL, CP_ECC_ERROR_INT_ENABLE,
> +		     enable_flag);
> +
> +	return 0;
> +}
> +
>   static int gfx_v8_0_eop_irq(struct amdgpu_device *adev,
>   			    struct amdgpu_irq_src *source,
>   			    struct amdgpu_iv_entry *entry)
> @@ -6837,6 +6896,14 @@ static int gfx_v8_0_priv_inst_irq(struct amdgpu_device *adev,
>   	return 0;
>   }
>   
> +static int gfx_v8_0_cp_ecc_error_irq(struct amdgpu_device *adev,
> +				     struct amdgpu_irq_src *source,
> +				     struct amdgpu_iv_entry *entry)
> +{
> +	DRM_ERROR("ECC error detected.");
> +	return 0;
> +}
> +
>   static int gfx_v8_0_kiq_set_interrupt_state(struct amdgpu_device *adev,
>   					    struct amdgpu_irq_src *src,
>   					    unsigned int type,
> @@ -7037,6 +7104,11 @@ static const struct amdgpu_irq_src_funcs gfx_v8_0_kiq_irq_funcs = {
>   	.process = gfx_v8_0_kiq_irq,
>   };
>   
> +static const struct amdgpu_irq_src_funcs gfx_v8_0_cp_ecc_error_irq_funcs = {
> +	.set = gfx_v8_0_set_cp_ecc_int_state,
> +	.process = gfx_v8_0_cp_ecc_error_irq,
> +};
> +
>   static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev)
>   {
>   	adev->gfx.eop_irq.num_types = AMDGPU_CP_IRQ_LAST;
> @@ -7050,6 +7122,9 @@ static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev)
>   
>   	adev->gfx.kiq.irq.num_types = AMDGPU_CP_KIQ_IRQ_LAST;
>   	adev->gfx.kiq.irq.funcs = &gfx_v8_0_kiq_irq_funcs;
> +
> +	adev->gfx.cp_ecc_error_irq.num_types = 1;
> +	adev->gfx.cp_ecc_error_irq.funcs = &gfx_v8_0_cp_ecc_error_irq_funcs;
>   }
>   
>   static void gfx_v8_0_set_rlc_funcs(struct amdgpu_device *adev)