linux-kernel - Re: [PATCH v4 3/6] drm/amdgpu: Switch to fdinfo helper

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Date:   Thu, 13 Apr 2023 12:37:29 +0200
From:   Christian König <ckoenig.leichtzumerken@...il.com>
To:     Rob Clark <robdclark@...il.com>, dri-devel@...ts.freedesktop.org
Cc:     open list <linux-kernel@...r.kernel.org>,
        Michel Dänzer <mdaenzer@...hat.com>,
        YiPeng Chai <YiPeng.Chai@....com>,
        Mario Limonciello <mario.limonciello@....com>,
        David Airlie <airlied@...il.com>,
        Rob Clark <robdclark@...omium.org>,
        Guchun Chen <guchun.chen@....com>,
        Shashank Sharma <shashank.sharma@....com>,
        "open list:RADEON and AMDGPU DRM DRIVERS" 
        <amd-gfx@...ts.freedesktop.org>,
        Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@....com>,
        linux-arm-msm@...r.kernel.org, Evan Quan <evan.quan@....com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...el.com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Emil Velikov <emil.l.velikov@...il.com>,
        Christopher Healy <healych@...zon.com>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Alex Deucher <alexander.deucher@....com>,
        freedreno@...ts.freedesktop.org,
        Christian König <christian.koenig@....com>,
        Hawking Zhang <Hawking.Zhang@....com>
Subject: Re: [PATCH v4 3/6] drm/amdgpu: Switch to fdinfo helper

Am 13.04.23 um 00:42 schrieb Rob Clark:
> From: Rob Clark <robdclark@...omium.org>
>
> Signed-off-by: Rob Clark <robdclark@...omium.org>

Reviewed-by: Christian König <christian.koenig@....com>

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c    |  3 ++-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c | 16 ++++++----------
>   drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.h |  2 +-
>   3 files changed, 9 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index f5ffca24def4..6c0e0c614b94 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -2752,7 +2752,7 @@ static const struct file_operations amdgpu_driver_kms_fops = {
>   	.compat_ioctl = amdgpu_kms_compat_ioctl,
>   #endif
>   #ifdef CONFIG_PROC_FS
> -	.show_fdinfo = amdgpu_show_fdinfo
> +	.show_fdinfo = drm_show_fdinfo,
>   #endif
>   };
>   
> @@ -2807,6 +2807,7 @@ static const struct drm_driver amdgpu_kms_driver = {
>   	.dumb_map_offset = amdgpu_mode_dumb_mmap,
>   	.fops = &amdgpu_driver_kms_fops,
>   	.release = &amdgpu_driver_release_kms,
> +	.show_fdinfo = amdgpu_show_fdinfo,
>   
>   	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
>   	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c
> index 99a7855ab1bc..c2fdd5e448d1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.c
> @@ -53,9 +53,8 @@ static const char *amdgpu_ip_name[AMDGPU_HW_IP_NUM] = {
>   	[AMDGPU_HW_IP_VCN_JPEG]	=	"jpeg",
>   };
>   
> -void amdgpu_show_fdinfo(struct seq_file *m, struct file *f)
> +void amdgpu_show_fdinfo(struct drm_printer *p, struct drm_file *file)
>   {
> -	struct drm_file *file = f->private_data;
>   	struct amdgpu_device *adev = drm_to_adev(file->minor->dev);
>   	struct amdgpu_fpriv *fpriv = file->driver_priv;
>   	struct amdgpu_vm *vm = &fpriv->vm;
> @@ -86,18 +85,15 @@ void amdgpu_show_fdinfo(struct seq_file *m, struct file *f)
>   	 * ******************************************************************
>   	 */
>   
> -	seq_printf(m, "pasid:\t%u\n", fpriv->vm.pasid);
> -	seq_printf(m, "drm-driver:\t%s\n", file->minor->dev->driver->name);
> -	seq_printf(m, "drm-pdev:\t%04x:%02x:%02x.%d\n", domain, bus, dev, fn);
> -	seq_printf(m, "drm-client-id:\t%Lu\n", vm->immediate.fence_context);
> -	seq_printf(m, "drm-memory-vram:\t%llu KiB\n", vram_mem/1024UL);
> -	seq_printf(m, "drm-memory-gtt: \t%llu KiB\n", gtt_mem/1024UL);
> -	seq_printf(m, "drm-memory-cpu: \t%llu KiB\n", cpu_mem/1024UL);
> +	drm_printf(p, "pasid:\t%u\n", fpriv->vm.pasid);
> +	drm_printf(p, "drm-memory-vram:\t%llu KiB\n", vram_mem/1024UL);
> +	drm_printf(p, "drm-memory-gtt: \t%llu KiB\n", gtt_mem/1024UL);
> +	drm_printf(p, "drm-memory-cpu: \t%llu KiB\n", cpu_mem/1024UL);
>   	for (hw_ip = 0; hw_ip < AMDGPU_HW_IP_NUM; ++hw_ip) {
>   		if (!usage[hw_ip])
>   			continue;
>   
> -		seq_printf(m, "drm-engine-%s:\t%Ld ns\n", amdgpu_ip_name[hw_ip],
> +		drm_printf(p, "drm-engine-%s:\t%Ld ns\n", amdgpu_ip_name[hw_ip],
>   			   ktime_to_ns(usage[hw_ip]));
>   	}
>   }
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.h
> index e86834bfea1d..0398f5a159ef 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fdinfo.h
> @@ -37,6 +37,6 @@
>   #include "amdgpu_ids.h"
>   
>   uint32_t amdgpu_get_ip_count(struct amdgpu_device *adev, int id);
> -void amdgpu_show_fdinfo(struct seq_file *m, struct file *f);
> +void amdgpu_show_fdinfo(struct drm_printer *p, struct drm_file *file);
>   
>   #endif