Commit 5803bdc8 authored by Lucas De Marchi's avatar Lucas De Marchi Committed by Rodrigo Vivi
Browse files

drm/xe/xe2: Add one more bit to encode PAT to ppgtt entries 



Xe2 adds one more bit to cover all the possible 32 entries. Although
those entries are not used by internal kernel code paths, it's expected
that userspace will make use of it.

Bspec: 59510, 67095
Reviewed-by: default avatarPallavi Mishra <pallavi.mishra@intel.com>
Reviewed-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20231006182325.3617685-2-lucas.demarchi@intel.com


Signed-off-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
parent 811aa4d2

drivers/gpu/drm/xe/xe_bo.h

+1 −0
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ 
#define XE_BO_INTERNAL_64K		BIT(31)



#define XELPG_PPGTT_PTE_PAT3		BIT_ULL(62)

#define XE2_PPGTT_PTE_PAT4		BIT_ULL(61)

#define XE_PPGTT_PTE_PAT2		BIT_ULL(7)

#define XE_PPGTT_PTE_PAT1		BIT_ULL(4)

#define XE_PPGTT_PTE_PAT0		BIT_ULL(3)

drivers/gpu/drm/xe/xe_vm.c

+3 −0
Original line number Diff line number Diff line
@@ -1242,6 +1242,9 @@ static u64 pte_encode_cache(struct xe_device *xe, enum xe_cache_level cache) 
	if (pat_index & BIT(3))

		pte |= XELPG_PPGTT_PTE_PAT3;



	if (pat_index & (BIT(4)))

		pte |= XE2_PPGTT_PTE_PAT4;



	return pte;

}