Commit d6d14854 authored by Michal Wajdeczko's avatar Michal Wajdeczko Committed by Rodrigo Vivi
Browse files

drm/xe: Add device flag to indicate SR-IOV support 



The Single Root I/O Virtualization (SR-IOV) extension to
the PCI Express (PCIe) specification suite is supported
starting from 12th generation of Intel Graphics processors.

Add a device flag that we will use to enable SR-IOV specific
code paths and to indicate our readiness to support SR-IOV.

We will enable this flag for the specific platforms once all
required changes and additions will be ready and merged.

Bspec: 52391
Reviewed-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20231115073804.1861-1-michal.wajdeczko@intel.com


Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
parent 8bfbe174

drivers/gpu/drm/xe/xe_device.h

+5 −0
Original line number Diff line number Diff line
@@ -158,6 +158,11 @@ static inline bool xe_device_has_flat_ccs(struct xe_device *xe) 
	return xe->info.has_flat_ccs;

}



static inline bool xe_device_has_sriov(struct xe_device *xe)

{

	return xe->info.has_sriov;

}



u32 xe_device_ccs_bytes(struct xe_device *xe, u64 size);



#endif

drivers/gpu/drm/xe/xe_device_types.h

+2 −0
Original line number Diff line number Diff line
@@ -253,6 +253,8 @@ struct xe_device { 
		u8 has_llc:1;

		/** @has_range_tlb_invalidation: Has range based TLB invalidations */

		u8 has_range_tlb_invalidation:1;

		/** @has_sriov: Supports SR-IOV */

		u8 has_sriov:1;

		/** @enable_display: display enabled */

		u8 enable_display:1;

		/** @bypass_mtcfg: Bypass Multi-Tile configuration from MTCFG register */

drivers/gpu/drm/xe/xe_pci.c

+2 −1
Original line number Diff line number Diff line
@@ -60,6 +60,7 @@ struct xe_device_desc { 
	u8 has_heci_gscfi:1;



	u8 has_llc:1;

	u8 has_sriov:1;

	u8 bypass_mtcfg:1;

	u8 supports_mmio_ext:1;

};
@@ -531,7 +532,6 @@ static void handle_gmdid(struct xe_device *xe, 
	}

}





static int xe_info_init(struct xe_device *xe,

			const struct xe_device_desc *desc,

			const struct xe_subplatform_desc *subplatform_desc)
@@ -577,6 +577,7 @@ static int xe_info_init(struct xe_device *xe, 
	xe->info.graphics_name = graphics_desc->name;

	xe->info.media_name = media_desc ? media_desc->name : "none";

	xe->info.has_llc = desc->has_llc;

	xe->info.has_sriov = desc->has_sriov;

	xe->info.bypass_mtcfg = desc->bypass_mtcfg;

	xe->info.supports_mmio_ext = desc->supports_mmio_ext;

	xe->info.tile_mmio_ext_size = graphics_desc->tile_mmio_ext_size;