Re: [PATCH v7 05/16] drm/amdgpu: Handle IOMMU enabled case.

[Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>]

Ping

Andrey

On 2021-05-12 10:26 a.m., Andrey Grodzovsky wrote:
> Handle all DMA IOMMU gropup related dependencies before the
> group is removed.
>
> v5: Drop IOMMU notifier and switch to lockless call to ttm_tt_unpopulate
> v6: Drop the BO unamp list
> v7:
> Drop amdgpu_gart_fini
> In amdgpu_ih_ring_fini do uncinditional  check (!ih->ring)
> to avoid freeing uniniitalized rings.
> Call amdgpu_ih_ring_fini unconditionally.
>
> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |  4 ++--
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c   | 14 +-------------
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h   |  2 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c     |  6 ++++--
>   drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c    |  5 +++++
>   drivers/gpu/drm/amd/amdgpu/cik_ih.c        |  1 -
>   drivers/gpu/drm/amd/amdgpu/cz_ih.c         |  1 -
>   drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c     |  1 -
>   drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c      |  1 -
>   drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c      |  1 -
>   drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c      |  1 -
>   drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c      |  1 -
>   drivers/gpu/drm/amd/amdgpu/iceland_ih.c    |  1 -
>   drivers/gpu/drm/amd/amdgpu/navi10_ih.c     |  4 ----
>   drivers/gpu/drm/amd/amdgpu/si_ih.c         |  1 -
>   drivers/gpu/drm/amd/amdgpu/tonga_ih.c      |  1 -
>   drivers/gpu/drm/amd/amdgpu/vega10_ih.c     |  4 ----
>   drivers/gpu/drm/amd/amdgpu/vega20_ih.c     |  4 ----
>   18 files changed, 13 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index 18598eda18f6..a0bff4713672 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -3256,7 +3256,6 @@ static const struct attribute *amdgpu_dev_attributes[] = {
>   	NULL
>   };
>   
> -
>   /**
>    * amdgpu_device_init - initialize the driver
>    *
> @@ -3698,12 +3697,13 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev)
>   		amdgpu_ucode_sysfs_fini(adev);
>   	sysfs_remove_files(&adev->dev->kobj, amdgpu_dev_attributes);
>   
> -
>   	amdgpu_fbdev_fini(adev);
>   
>   	amdgpu_irq_fini_hw(adev);
>   
>   	amdgpu_device_ip_fini_early(adev);
> +
> +	amdgpu_gart_dummy_page_fini(adev);
>   }
>   
>   void amdgpu_device_fini_sw(struct amdgpu_device *adev)
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> index c5a9a4fb10d2..6460cf723f0a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> @@ -92,7 +92,7 @@ static int amdgpu_gart_dummy_page_init(struct amdgpu_device *adev)
>    *
>    * Frees the dummy page used by the driver (all asics).
>    */
> -static void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev)
> +void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev)
>   {
>   	if (!adev->dummy_page_addr)
>   		return;
> @@ -365,15 +365,3 @@ int amdgpu_gart_init(struct amdgpu_device *adev)
>   
>   	return 0;
>   }
> -
> -/**
> - * amdgpu_gart_fini - tear down the driver info for managing the gart
> - *
> - * @adev: amdgpu_device pointer
> - *
> - * Tear down the gart driver info and free the dummy page (all asics).
> - */
> -void amdgpu_gart_fini(struct amdgpu_device *adev)
> -{
> -	amdgpu_gart_dummy_page_fini(adev);
> -}
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
> index a25fe97b0196..030b9d4c736a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
> @@ -57,7 +57,7 @@ void amdgpu_gart_table_vram_free(struct amdgpu_device *adev);
>   int amdgpu_gart_table_vram_pin(struct amdgpu_device *adev);
>   void amdgpu_gart_table_vram_unpin(struct amdgpu_device *adev);
>   int amdgpu_gart_init(struct amdgpu_device *adev);
> -void amdgpu_gart_fini(struct amdgpu_device *adev);
> +void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev);
>   int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
>   		       int pages);
>   int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
> index faaa6aa2faaf..433469ace6f4 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
> @@ -115,9 +115,11 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
>    */
>   void amdgpu_ih_ring_fini(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih)
>   {
> +
> +	if (!ih->ring)
> +		return;
> +
>   	if (ih->use_bus_addr) {
> -		if (!ih->ring)
> -			return;
>   
>   		/* add 8 bytes for the rptr/wptr shadows and
>   		 * add them to the end of the ring allocation.
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> index 233b64dab94b..32ce0e679dc7 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> @@ -361,6 +361,11 @@ void amdgpu_irq_fini_hw(struct amdgpu_device *adev)
>   		if (!amdgpu_device_has_dc_support(adev))
>   			flush_work(&adev->hotplug_work);
>   	}
> +
> +	amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
> +	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
> +	amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
> +	amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
>   }
>   
>   /**
> diff --git a/drivers/gpu/drm/amd/amdgpu/cik_ih.c b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
> index 183d44a6583c..df385ffc9768 100644
> --- a/drivers/gpu/drm/amd/amdgpu/cik_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
> @@ -310,7 +310,6 @@ static int cik_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   	amdgpu_irq_remove_domain(adev);
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/amd/amdgpu/cz_ih.c b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
> index d32743949003..b8c47e0cf37a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/cz_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
> @@ -302,7 +302,6 @@ static int cz_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   	amdgpu_irq_remove_domain(adev);
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> index 2bfd620576f2..5e8bfcdd422e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> @@ -954,7 +954,6 @@ static int gmc_v10_0_sw_init(void *handle)
>   static void gmc_v10_0_gart_fini(struct amdgpu_device *adev)
>   {
>   	amdgpu_gart_table_vram_free(adev);
> -	amdgpu_gart_fini(adev);
>   }
>   
>   static int gmc_v10_0_sw_fini(void *handle)
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> index 405d6ad09022..0e81e03e9b49 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> @@ -898,7 +898,6 @@ static int gmc_v6_0_sw_fini(void *handle)
>   	amdgpu_vm_manager_fini(adev);
>   	amdgpu_gart_table_vram_free(adev);
>   	amdgpu_bo_fini(adev);
> -	amdgpu_gart_fini(adev);
>   	release_firmware(adev->gmc.fw);
>   	adev->gmc.fw = NULL;
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> index 210ada2289ec..0795ea736573 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> @@ -1085,7 +1085,6 @@ static int gmc_v7_0_sw_fini(void *handle)
>   	kfree(adev->gmc.vm_fault_info);
>   	amdgpu_gart_table_vram_free(adev);
>   	amdgpu_bo_fini(adev);
> -	amdgpu_gart_fini(adev);
>   	release_firmware(adev->gmc.fw);
>   	adev->gmc.fw = NULL;
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> index c1bd190841f8..dbf2e5472069 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> @@ -1194,7 +1194,6 @@ static int gmc_v8_0_sw_fini(void *handle)
>   	kfree(adev->gmc.vm_fault_info);
>   	amdgpu_gart_table_vram_free(adev);
>   	amdgpu_bo_fini(adev);
> -	amdgpu_gart_fini(adev);
>   	release_firmware(adev->gmc.fw);
>   	adev->gmc.fw = NULL;
>   
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index c82d82da2c73..5ed0adae05cf 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -1601,7 +1601,6 @@ static int gmc_v9_0_sw_fini(void *handle)
>   	amdgpu_gart_table_vram_free(adev);
>   	amdgpu_bo_unref(&adev->gmc.pdb0_bo);
>   	amdgpu_bo_fini(adev);
> -	amdgpu_gart_fini(adev);
>   
>   	return 0;
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
> index da96c6013477..ddfe4eaeea05 100644
> --- a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
> @@ -301,7 +301,6 @@ static int iceland_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   	amdgpu_irq_remove_domain(adev);
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
> index 5eea4550b856..941d464a2b47 100644
> --- a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
> @@ -570,10 +570,6 @@ static int navi10_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   
>   	return 0;
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/si_ih.c b/drivers/gpu/drm/amd/amdgpu/si_ih.c
> index 751307f3252c..9a24f17a5750 100644
> --- a/drivers/gpu/drm/amd/amdgpu/si_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/si_ih.c
> @@ -176,7 +176,6 @@ static int si_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   
>   	return 0;
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
> index 973d80ec7f6c..b08905d1c00f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
> @@ -313,7 +313,6 @@ static int tonga_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   	amdgpu_irq_remove_domain(adev);
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
> index dead9c2fbd4c..32ec4b8e806a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
> @@ -514,10 +514,6 @@ static int vega10_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   
>   	return 0;
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
> index 58993ae1fe11..f51dfc38ac65 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
> @@ -566,10 +566,6 @@ static int vega20_ih_sw_fini(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   
>   	amdgpu_irq_fini_sw(adev);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
> -	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
>   
>   	return 0;
>   }