powerpc/book3s64/radix: Add H_RPT_INVALIDATE pgsize encodings to mmu_psize_def

Add a field to mmu_psize_def to store the page size encodings
of H_RPT_INVALIDATE hcall. Initialize this while scanning the radix
AP encodings. This will be used when invalidating with required
page size encoding in the hcall.
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210621085003.904767-3-bharata@linux.ibm.com

arch/powerpc/include/asm/book3s/64/mmu.h

@@ -19,6 +19,7 @@ struct mmu_psize_def {
 	int		penc[MMU_PAGE_COUNT];	/* HPTE encoding */
 	unsigned int	tlbiel;	/* tlbiel supported for that page size */
 	unsigned long	avpnm;	/* bits to mask out in AVPN in the HPTE */
+	unsigned long   h_rpt_pgsize; /* H_RPT_INVALIDATE page size encoding */
 	union {
 		unsigned long	sllp;	/* SLB L||LP (exact mask to use in slbmte) */
 		unsigned long ap;	/* Ap encoding used by PowerISA 3.0 */

arch/powerpc/mm/book3s64/radix_pgtable.c

@@ -475,6 +475,7 @@ static int __init radix_dt_scan_page_sizes(unsigned long node,
 		def = &mmu_psize_defs[idx];
 		def->shift = shift;
 		def->ap  = ap;
+		def->h_rpt_pgsize = psize_to_rpti_pgsize(idx);
 	}
 
 	/* needed ? */
@@ -549,9 +550,13 @@ void __init radix__early_init_devtree(void)
 		 */
 		mmu_psize_defs[MMU_PAGE_4K].shift = 12;
 		mmu_psize_defs[MMU_PAGE_4K].ap = 0x0;
+		mmu_psize_defs[MMU_PAGE_4K].h_rpt_pgsize =
+			psize_to_rpti_pgsize(MMU_PAGE_4K);
 
 		mmu_psize_defs[MMU_PAGE_64K].shift = 16;
 		mmu_psize_defs[MMU_PAGE_64K].ap = 0x5;
+		mmu_psize_defs[MMU_PAGE_64K].h_rpt_pgsize =
+			psize_to_rpti_pgsize(MMU_PAGE_64K);
 	}
 
 	/*