RE: [PATCH 4/4] drm/amdgpu: use a macro to define no xcp partition case

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Thank you for review, Felix.

Hi Christian,

I forgot to add your RB in patch 2/patch3 when posting this series for review. I will add it back when pushing. Hope it's fine to you.

Regards,
Guchun

> -----Original Message-----
> From: Kuehling, Felix <Felix.Kuehling@xxxxxxx>
> Sent: Monday, July 17, 2023 10:58 PM
> To: Chen, Guchun <Guchun.Chen@xxxxxxx>; amd-
> gfx@xxxxxxxxxxxxxxxxxxxxx; Deucher, Alexander
> <Alexander.Deucher@xxxxxxx>; Zhang, Hawking
> <Hawking.Zhang@xxxxxxx>; Koenig, Christian
> <Christian.Koenig@xxxxxxx>; Yang, Philip <Philip.Yang@xxxxxxx>
> Subject: Re: [PATCH 4/4] drm/amdgpu: use a macro to define no xcp
> partition case
>
> On 2023-07-16 22:26, Guchun Chen wrote:
> > ~0 as no xcp partition is used in several places, so improve its
> > definition by a macro for code consistency.
> >
> > Suggested-by: Christian König <christian.koenig@xxxxxxx>
> > Signed-off-by: Guchun Chen <guchun.chen@xxxxxxx>
>
> The series is
>
> Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
>
>
> > ---
> >   drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 3 ++-
> >   drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c          | 4 ++--
> >   drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h          | 2 ++
> >   drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c       | 4 ++--
> >   4 files changed, 8 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> > index a7f314ddd173..d34c3ef8f3ed 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
> > @@ -1709,7 +1709,8 @@ int
> amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
> >                     alloc_flags |= (flags &
> KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC) ?
> >                     AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED : 0;
> >             }
> > -           xcp_id = fpriv->xcp_id == ~0 ? 0 : fpriv->xcp_id;
> > +           xcp_id = fpriv->xcp_id == AMDGPU_XCP_NO_PARTITION ?
> > +                                   0 : fpriv->xcp_id;
> >     } else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_GTT) {
> >             domain = alloc_domain = AMDGPU_GEM_DOMAIN_GTT;
> >             alloc_flags = 0;
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
> > index d175e862f222..9c9cca129498 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
> > @@ -363,7 +363,7 @@ int amdgpu_xcp_open_device(struct
> amdgpu_device *adev,
> >     if (!adev->xcp_mgr)
> >             return 0;
> >
> > -   fpriv->xcp_id = ~0;
> > +   fpriv->xcp_id = AMDGPU_XCP_NO_PARTITION;
> >     for (i = 0; i < MAX_XCP; ++i) {
> >             if (!adev->xcp_mgr->xcp[i].ddev)
> >                     break;
> > @@ -381,7 +381,7 @@ int amdgpu_xcp_open_device(struct
> amdgpu_device *adev,
> >             }
> >     }
> >
> > -   fpriv->vm.mem_id = fpriv->xcp_id == ~0 ? -1 :
> > +   fpriv->vm.mem_id = fpriv->xcp_id == AMDGPU_XCP_NO_PARTITION ?
> -1 :
> >                             adev->xcp_mgr->xcp[fpriv->xcp_id].mem_id;
> >     return 0;
> >   }
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
> > index 0f8026d64ea5..9a1036aeec2a 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
> > @@ -37,6 +37,8 @@
> >   #define AMDGPU_XCP_FL_NONE 0
> >   #define AMDGPU_XCP_FL_LOCKED (1 << 0)
> >
> > +#define AMDGPU_XCP_NO_PARTITION (~0)
> > +
> >   struct amdgpu_fpriv;
> >
> >   enum AMDGPU_XCP_IP_BLOCK {
> > diff --git a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
> > b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
> > index 16471b81a1f5..72b629a78c62 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram.c
> > @@ -68,7 +68,7 @@ static void aqua_vanjaram_set_xcp_id(struct
> amdgpu_device *adev,
> >     enum AMDGPU_XCP_IP_BLOCK ip_blk;
> >     uint32_t inst_mask;
> >
> > -   ring->xcp_id = ~0;
> > +   ring->xcp_id = AMDGPU_XCP_NO_PARTITION;
> >     if (adev->xcp_mgr->mode == AMDGPU_XCP_MODE_NONE)
> >             return;
> >
> > @@ -177,7 +177,7 @@ static int aqua_vanjaram_select_scheds(
> >     u32 sel_xcp_id;
> >     int i;
> >
> > -   if (fpriv->xcp_id == ~0) {
> > +   if (fpriv->xcp_id == AMDGPU_XCP_NO_PARTITION) {
> >             u32 least_ref_cnt = ~0;
> >
> >             fpriv->xcp_id = 0;




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