[Intel-gfx] [PATCH 2/2] drm/i915: Ratelimit debug log in vm_fault_ttm

[Andi Shyti]

Hi Nirmoy,

On Tue, Jan 17, 2023 at 12:53:50PM +0100, Nirmoy Das wrote:
> Test like i915_gem_mman_live_selftests/igt_mmap_migrate can cause
> dmesg spamming. Use ratelimit api to reduce log rate.
> 
> References: https://gitlab.freedesktop.org/drm/intel/-/issues/7038
> Cc: Matthew Auld <matthew.auld at intel.com>
> 
> Reviewed-by: Matthew Auld <matthew.auld at intel.com>
> Signed-off-by: Nirmoy Das <nirmoy.das at intel.com>

Reviewed-by: Andi Shyti <andi.shyti at linux.intel.com>

Thanks,
Andi

> ---
>  drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> index 8cfed1bef629..25294ddbee46 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
> @@ -1077,8 +1077,9 @@ static vm_fault_t vm_fault_ttm(struct vm_fault *vmf)
>  		}
>  
>  		if (err) {
> -			drm_dbg(dev, "Unable to make resource CPU accessible(err = %pe)\n",
> -				ERR_PTR(err));
> +			drm_dbg_ratelimited(dev,
> +					    "Unable to make resource CPU accessible(err = %pe)\n",
> +					    ERR_PTR(err));
>  			dma_resv_unlock(bo->base.resv);
>  			ret = VM_FAULT_SIGBUS;
>  			goto out_rpm;
> -- 
> 2.39.0