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From: Alex Deucher <alexdeucher@gmail.com>
To: Nirmoy Das <nirmoy.das@amd.com>
Cc: "Deucher, Alexander" <alexander.deucher@amd.com>,
	Christian Koenig <Christian.Koenig@amd.com>,
	amd-gfx list <amd-gfx@lists.freedesktop.org>
Subject: Re: [PATCH 1/7] drm/amdgpu: add amdgpu_bo_vm bo type
Date: Fri, 21 May 2021 10:54:36 -0400	[thread overview]
Message-ID: <CADnq5_O=eQqiaGdPNjh8Juc7L3D0_kDJW+BTWAp04nQpQVVSFg@mail.gmail.com> (raw)
In-Reply-To: <20210521124533.4380-1-nirmoy.das@amd.com>

On Fri, May 21, 2021 at 8:46 AM Nirmoy Das <nirmoy.das@amd.com> wrote:
>
> Add new BO subcalss that will be used by amdgpu vm code.

s/subcalss/subclass/

Alex

>
> Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 32 ++++++++++++++++++++++
>  drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 10 +++++++
>  2 files changed, 42 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> index 745fcf3ea450..61b1edcb490a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> @@ -692,6 +692,38 @@ int amdgpu_bo_create_user(struct amdgpu_device *adev,
>         *ubo_ptr = to_amdgpu_bo_user(bo_ptr);
>         return r;
>  }
> +
> +/**
> + * amdgpu_bo_create_vm - create an &amdgpu_bo_vm buffer object
> + * @adev: amdgpu device object
> + * @bp: parameters to be used for the buffer object
> + * @vmbo_ptr: pointer to the buffer object pointer
> + *
> + * Create a BO to be for GPUVM.
> + *
> + * Returns:
> + * 0 for success or a negative error code on failure.
> + */
> +
> +int amdgpu_bo_create_vm(struct amdgpu_device *adev,
> +                       struct amdgpu_bo_param *bp,
> +                       struct amdgpu_bo_vm **vmbo_ptr)
> +{
> +       struct amdgpu_bo *bo_ptr;
> +       int r;
> +
> +       /* bo_ptr_size will be determined by the caller and it depends on
> +        * num of amdgpu_vm_pt entries.
> +        */
> +       BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo_vm));
> +       r = amdgpu_bo_create(adev, bp, &bo_ptr);
> +       if (r)
> +               return r;
> +
> +       *vmbo_ptr = to_amdgpu_bo_vm(bo_ptr);
> +       return r;
> +}
> +
>  /**
>   * amdgpu_bo_validate - validate an &amdgpu_bo buffer object
>   * @bo: pointer to the buffer object
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
> index 11480c5a2716..a7fbf5f7051e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
> @@ -44,6 +44,7 @@
>  #define AMDGPU_AMDKFD_CREATE_SVM_BO    (1ULL << 62)
>
>  #define to_amdgpu_bo_user(abo) container_of((abo), struct amdgpu_bo_user, bo)
> +#define to_amdgpu_bo_vm(abo) container_of((abo), struct amdgpu_bo_vm, bo)
>
>  struct amdgpu_bo_param {
>         unsigned long                   size;
> @@ -125,6 +126,12 @@ struct amdgpu_bo_user {
>
>  };
>
> +struct amdgpu_bo_vm {
> +       struct amdgpu_bo                bo;
> +       struct amdgpu_bo                *shadow;
> +       struct amdgpu_vm_pt             entries[];
> +};
> +
>  static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
>  {
>         return container_of(tbo, struct amdgpu_bo, tbo);
> @@ -272,6 +279,9 @@ int amdgpu_bo_create_kernel_at(struct amdgpu_device *adev,
>  int amdgpu_bo_create_user(struct amdgpu_device *adev,
>                           struct amdgpu_bo_param *bp,
>                           struct amdgpu_bo_user **ubo_ptr);
> +int amdgpu_bo_create_vm(struct amdgpu_device *adev,
> +                       struct amdgpu_bo_param *bp,
> +                       struct amdgpu_bo_vm **ubo_ptr);
>  void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
>                            void **cpu_addr);
>  int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
> --
> 2.31.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
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  parent reply	other threads:[~2021-05-21 14:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 12:45 Nirmoy Das
2021-05-21 12:45 ` [PATCH 2/7] drm/amdgpu: add a new identifier for amdgpu_bo Nirmoy Das
2021-05-21 12:58   ` Christian König
2021-05-21 13:54     ` Nirmoy
2021-05-21 12:45 ` [PATCH 3/7] drm/amdgpu: use amdgpu_bo_vm for vm code Nirmoy Das
2021-05-21 12:45 ` [PATCH 4/7] drm/amdgpu: create shadow bo directly Nirmoy Das
2021-05-21 12:45 ` [PATCH 5/7] drm/amdgpu: switch to amdgpu_bo_vm's shadow Nirmoy Das
2021-05-21 12:45 ` [PATCH 6/7] drm/amdgpu: remove unused code Nirmoy Das
2021-05-21 12:45 ` [PATCH 7/7] drm/amdgpu: do not allocate entries separately Nirmoy Das
2021-05-21 13:01   ` Christian König
2021-05-21 14:04     ` Nirmoy
2021-05-21 14:54 ` Alex Deucher [this message]
2021-05-21 15:19   ` [PATCH 1/7] drm/amdgpu: add amdgpu_bo_vm bo type Nirmoy
2021-05-26 10:10 Nirmoy Das
2021-05-26 12:01 ` Christian König

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