[PATCH 4/8] drm/xe/vf: Don't initialize stolen memory manager if VF

[Matt Roper]

On Fri, Jan 12, 2024 at 04:26:45PM +0100, Michal Wajdeczko wrote:
> VF drivers don't have access to the stolen memory.
> 
> Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>

Reviewed-by: Matt Roper <matthew.d.roper at intel.com>

> ---
>  drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c b/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c
> index e5d7d5e2bec1..662f1e9bfc65 100644
> --- a/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c
> +++ b/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c
> @@ -19,6 +19,7 @@
>  #include "xe_gt.h"
>  #include "xe_mmio.h"
>  #include "xe_res_cursor.h"
> +#include "xe_sriov.h"
>  #include "xe_ttm_stolen_mgr.h"
>  #include "xe_ttm_vram_mgr.h"
>  #include "xe_wa.h"
> @@ -205,7 +206,9 @@ void xe_ttm_stolen_mgr_init(struct xe_device *xe)
>  	u64 stolen_size, io_size, pgsize;
>  	int err;
>  
> -	if (IS_DGFX(xe))
> +	if (IS_SRIOV_VF(xe))
> +		stolen_size = 0;
> +	else if (IS_DGFX(xe))
>  		stolen_size = detect_bar2_dgfx(xe, mgr);
>  	else if (GRAPHICS_VERx100(xe) >= 1270)
>  		stolen_size = detect_bar2_integrated(xe, mgr);
> -- 
> 2.25.1
> 

-- 
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation