Re: [PATCH 04/11] drm/xe: Add page reclamation info to device info

[Matthew Brost <matthew.brost@intel.com>]

On Tue, Nov 18, 2025 at 05:05:45PM +0800, Brian Nguyen wrote:
> From: Oak Zeng <oak.zeng@intel.com>
> 
> Starting from Xe3p, HW adds a feature assisting range based page
> reclamation. Introduce a bit in device info to indicate whether
> device has such capability.
> 
> Signed-off-by: Oak Zeng <oak.zeng@intel.com>
> Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com>

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

> ---
>  drivers/gpu/drm/xe/xe_device_types.h | 2 ++
>  drivers/gpu/drm/xe/xe_pci.c          | 1 +
>  drivers/gpu/drm/xe/xe_pci_types.h    | 1 +
>  3 files changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h
> index 0b2fa7c56d38..268c8e28601a 100644
> --- a/drivers/gpu/drm/xe/xe_device_types.h
> +++ b/drivers/gpu/drm/xe/xe_device_types.h
> @@ -308,6 +308,8 @@ struct xe_device {
>  		u8 has_mbx_power_limits:1;
>  		/** @info.has_mem_copy_instr: Device supports MEM_COPY instruction */
>  		u8 has_mem_copy_instr:1;
> +		/** @info.has_page_reclaim_hw_assist: Device supports page reclamation feature */
> +		u8 has_page_reclaim_hw_assist:1;
>  		/** @info.has_pxp: Device has PXP support */
>  		u8 has_pxp:1;
>  		/** @info.has_range_tlb_inval: Has range based TLB invalidations */
> diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
> index cd03b4b3ebdb..43c47426313e 100644
> --- a/drivers/gpu/drm/xe/xe_pci.c
> +++ b/drivers/gpu/drm/xe/xe_pci.c
> @@ -673,6 +673,7 @@ static int xe_info_init_early(struct xe_device *xe,
>  	xe->info.has_heci_cscfi = desc->has_heci_cscfi;
>  	xe->info.has_late_bind = desc->has_late_bind;
>  	xe->info.has_llc = desc->has_llc;
> +	xe->info.has_page_reclaim_hw_assist = desc->has_page_reclaim_hw_assist;
>  	xe->info.has_pxp = desc->has_pxp;
>  	xe->info.has_sriov = xe_configfs_primary_gt_allowed(to_pci_dev(xe->drm.dev)) &&
>  		desc->has_sriov;
> diff --git a/drivers/gpu/drm/xe/xe_pci_types.h b/drivers/gpu/drm/xe/xe_pci_types.h
> index 9892c063a9c5..151743d4cf72 100644
> --- a/drivers/gpu/drm/xe/xe_pci_types.h
> +++ b/drivers/gpu/drm/xe/xe_pci_types.h
> @@ -47,6 +47,7 @@ struct xe_device_desc {
>  	u8 has_llc:1;
>  	u8 has_mbx_power_limits:1;
>  	u8 has_mem_copy_instr:1;
> +	u8 has_page_reclaim_hw_assist:1;
>  	u8 has_pxp:1;
>  	u8 has_sriov:1;
>  	u8 needs_scratch:1;
> -- 
> 2.51.2
>