[PATCH 2/4] drm/amdgpu/sriov:alloc KIQ MQD in VRAM

[Liu, Monk]

Alex

Since CPU visible VRAM resource is very limited, I'm not sure BM like it or not, 
Besides, after we unify the code we'll forget why we do this on SRIOV and in future someone will change it back to GTT domain (some guy care bare-metal only) and lead to SRIOV issues and that time it's hard to recall what's going on 

I prefer keep things different that's good to maintain the stability 

BR Monk

-----Original Message-----
From: Deucher, Alexander 
Sent: 2017年9月21日 23:00
To: Liu, Monk <Monk.Liu at amd.com>; amd-gfx at lists.freedesktop.org
Cc: Liu, Monk <Monk.Liu at amd.com>
Subject: RE: [PATCH 2/4] drm/amdgpu/sriov:alloc KIQ MQD in VRAM

> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf 
> Of Monk Liu
> Sent: Thursday, September 21, 2017 3:12 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: Liu, Monk
> Subject: [PATCH 2/4] drm/amdgpu/sriov:alloc KIQ MQD in VRAM
> 
> this way after KIQ MQD released in drv unloading, CPC can still let 
> KIQ access this MQD thus RLCV SAVE_VF will not fail
> 
> Change-Id: Iccef37a70c193c83af80961dae2c67ed859f1a13
> Signed-off-by: Monk Liu <Monk.Liu at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
> index 4f6c68f..d85962b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
> @@ -261,7 +261,7 @@ int amdgpu_gfx_compute_mqd_sw_init(struct
> amdgpu_device *adev,
>  	ring = &adev->gfx.kiq.ring;
>  	if (!ring->mqd_obj) {
>  		r = amdgpu_bo_create_kernel(adev, mqd_size, PAGE_SIZE,
> -					    AMDGPU_GEM_DOMAIN_GTT,
> &ring->mqd_obj,
> +					    (amdgpu_sriov_vf(adev) ?
> AMDGPU_GEM_DOMAIN_VRAM : AMDGPU_GEM_DOMAIN_GTT), &ring-

Here as well.  Might as well vram for both VF and bare metal for consistency.

Alex

> >mqd_obj,
>  					    &ring->mqd_gpu_addr, &ring-
> >mqd_ptr);
>  		if (r) {
>  			dev_warn(adev->dev, "failed to create ring mqd ob (%d)", r);
> --
> 2.7.4
> 
> _______________________________________________
> amd-gfx mailing list
> amd-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx