[PATCH] drm/xe: Fix memset on iomem

[Matthew Brost]

On Thu, Jun 12, 2025 at 03:14:12PM -0700, Lucas De Marchi wrote:
> It should rather use xe_map_memset() as the BO is created with
> XE_BO_FLAG_VRAM_IF_DGFX in xe_guc_pc_init().
> 
> Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
> Cc: stable at vger.kernel.org
> Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>

Reviewed-by: Matthew Brost <matthew.brost at intel.com>

> ---
>  drivers/gpu/drm/xe/xe_guc_pc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/xe/xe_guc_pc.c b/drivers/gpu/drm/xe/xe_guc_pc.c
> index 18c6239920355..3beaaa7b25c1b 100644
> --- a/drivers/gpu/drm/xe/xe_guc_pc.c
> +++ b/drivers/gpu/drm/xe/xe_guc_pc.c
> @@ -1068,7 +1068,7 @@ int xe_guc_pc_start(struct xe_guc_pc *pc)
>  		goto out;
>  	}
>  
> -	memset(pc->bo->vmap.vaddr, 0, size);
> +	xe_map_memset(xe, &pc->bo->vmap, 0, 0, size);
>  	slpc_shared_data_write(pc, header.size, size);
>  
>  	earlier = ktime_get();
> 
> 
>