[PATCH 2/4] drm/amdgpu: cleanup vm_size handling

Alex Deucher alexdeucher at gmail.com
Thu Nov 9 16:28:55 UTC 2017


On Thu, Nov 9, 2017 at 9:49 AM, Christian König
<ckoenig.leichtzumerken at gmail.com> wrote:
> It's pointless to have the same value twice, just always use max_pfn.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 18 +++++++++---------
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h |  7 +++----
>  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  | 13 +++++--------
>  6 files changed, 17 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index 407d3dad8f97..94500358eccc 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -2576,27 +2576,27 @@ void amdgpu_vm_set_fragment_size(struct amdgpu_device *adev,
>   * @adev: amdgpu_device pointer
>   * @vm_size: the default vm size if it's set auto
>   */
> -void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size,
> +void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size,
>                            uint32_t fragment_size_default)
>  {
>         /* adjust vm size firstly */
> -       if (amdgpu_vm_size == -1)
> -               adev->vm_manager.vm_size = vm_size;
> -       else
> -               adev->vm_manager.vm_size = amdgpu_vm_size;
> +       if (amdgpu_vm_size != -1)
> +               vm_size = amdgpu_vm_size;
> +
> +       adev->vm_manager.max_pfn = (uint64_t)vm_size << 18;
>
>         /* block size depends on vm size */
>         if (amdgpu_vm_block_size == -1)
>                 adev->vm_manager.block_size =
> -                       amdgpu_vm_get_block_size(adev->vm_manager.vm_size);
> +                       amdgpu_vm_get_block_size(vm_size);
>         else
>                 adev->vm_manager.block_size = amdgpu_vm_block_size;
>
>         amdgpu_vm_set_fragment_size(adev, fragment_size_default);
>
> -       DRM_INFO("vm size is %llu GB, block size is %u-bit, fragment size is %u-bit\n",
> -               adev->vm_manager.vm_size, adev->vm_manager.block_size,
> -               adev->vm_manager.fragment_size);
> +       DRM_INFO("vm size is %u GB, block size is %u-bit, fragment size is %u-bit\n",
> +                vm_size, adev->vm_manager.block_size,
> +                adev->vm_manager.fragment_size);
>  }
>
>  /**
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> index aa914256b4bc..c7b796c12775 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
> @@ -220,7 +220,6 @@ struct amdgpu_vm_manager {
>
>         uint64_t                                max_pfn;
>         uint32_t                                num_level;
> -       uint64_t                                vm_size;
>         uint32_t                                block_size;
>         uint32_t                                fragment_size;
>         /* vram base address for page table entry  */
> @@ -312,9 +311,9 @@ struct amdgpu_bo_va_mapping *amdgpu_vm_bo_lookup_mapping(struct amdgpu_vm *vm,
>  void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
>                       struct amdgpu_bo_va *bo_va);
>  void amdgpu_vm_set_fragment_size(struct amdgpu_device *adev,
> -                               uint32_t fragment_size_default);
> -void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint64_t vm_size,
> -                               uint32_t fragment_size_default);
> +                                uint32_t fragment_size_default);
> +void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t vm_size,
> +                          uint32_t fragment_size_default);
>  int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
>  bool amdgpu_vm_need_pipeline_sync(struct amdgpu_ring *ring,
>                                   struct amdgpu_job *job);
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> index d2a43db22cff..c8e47c36608e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
> @@ -838,7 +838,6 @@ static int gmc_v6_0_sw_init(void *handle)
>                 return r;
>
>         amdgpu_vm_adjust_size(adev, 64, 9);
> -       adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
>
>         adev->mc.mc_mask = 0xffffffffffULL;
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> index 6c6a7e14359c..2b7338e22409 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
> @@ -978,7 +978,6 @@ static int gmc_v7_0_sw_init(void *handle)
>          * Max GPUVM size for cayman and SI is 40 bits.
>          */
>         amdgpu_vm_adjust_size(adev, 64, 9);
> -       adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
>
>         /* Set the internal MC address mask
>          * This is the max address of the GPU's
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> index edbe0df24d90..e30a96a8f49b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
> @@ -1075,7 +1075,6 @@ static int gmc_v8_0_sw_init(void *handle)
>          * Max GPUVM size for cayman and SI is 40 bits.
>          */
>         amdgpu_vm_adjust_size(adev, 64, 9);
> -       adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
>
>         /* Set the internal MC address mask
>          * This is the max address of the GPU's
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index 91fc097abdfc..16bba97e704a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -555,7 +555,7 @@ static int gmc_v9_0_sw_init(void *handle)
>         case CHIP_RAVEN:
>                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
>                 if (adev->rev_id == 0x0 || adev->rev_id == 0x1) {
> -                       adev->vm_manager.vm_size = 1U << 18;
> +                       adev->vm_manager.max_pfn = 1ULL << 36;
>                         adev->vm_manager.block_size = 9;
>                         adev->vm_manager.num_level = 3;
>                         amdgpu_vm_set_fragment_size(adev, 9);
> @@ -573,7 +573,7 @@ static int gmc_v9_0_sw_init(void *handle)
>                  * vm size is 256TB (48bit), maximum size of Vega10,
>                  * block size 512 (9bit)
>                  */
> -               adev->vm_manager.vm_size = 1U << 18;
> +               adev->vm_manager.max_pfn = 1ULL << 36;
>                 adev->vm_manager.block_size = 9;
>                 adev->vm_manager.num_level = 3;
>                 amdgpu_vm_set_fragment_size(adev, 9);
> @@ -582,10 +582,9 @@ static int gmc_v9_0_sw_init(void *handle)
>                 break;
>         }
>
> -       DRM_INFO("vm size is %llu GB, block size is %u-bit,fragment size is %u-bit\n",
> -                       adev->vm_manager.vm_size,
> -                       adev->vm_manager.block_size,
> -                       adev->vm_manager.fragment_size);
> +       DRM_INFO("vm size is %llu GB, block size is %u-bit, fragment size is %u-bit\n",
> +                adev->vm_manager.max_pfn >> 18, adev->vm_manager.block_size,
> +                adev->vm_manager.fragment_size);
>
>         /* This interrupt is VMC page fault.*/
>         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_VMC, 0,
> @@ -596,8 +595,6 @@ static int gmc_v9_0_sw_init(void *handle)
>         if (r)
>                 return r;
>
> -       adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
> -
>         /* Set the internal MC address mask
>          * This is the max address of the GPU's
>          * internal address space.
> --
> 2.11.0
>
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