Commit 138ee7ee authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Michael Ellerman

powerpc/mm/hash: Add helper for finding SLBE LLP encoding

Replace opencoding of the same at multiple places with the helper.
No functional change with this patch.
Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 8cb8140c
......@@ -191,6 +191,15 @@ static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
BUG();
}
static inline unsigned long get_sllp_encoding(int psize)
{
unsigned long sllp;
sllp = ((mmu_psize_defs[psize].sllp & SLB_VSID_L) >> 6) |
((mmu_psize_defs[psize].sllp & SLB_VSID_LP) >> 4);
return sllp;
}
#endif /* __ASSEMBLY__ */
/*
......
......@@ -181,8 +181,7 @@ static inline unsigned long compute_tlbie_rb(unsigned long v, unsigned long r,
switch (b_psize) {
case MMU_PAGE_4K:
sllp = ((mmu_psize_defs[a_psize].sllp & SLB_VSID_L) >> 6) |
((mmu_psize_defs[a_psize].sllp & SLB_VSID_LP) >> 4);
sllp = get_sllp_encoding(a_psize);
rb |= sllp << 5; /* AP field */
rb |= (va_low & 0x7ff) << 12; /* remaining 11 bits of AVA */
break;
......
......@@ -72,8 +72,7 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize)
/* clear out bits after (52) [0....52.....63] */
va &= ~((1ul << (64 - 52)) - 1);
va |= ssize << 8;
sllp = ((mmu_psize_defs[apsize].sllp & SLB_VSID_L) >> 6) |
((mmu_psize_defs[apsize].sllp & SLB_VSID_LP) >> 4);
sllp = get_sllp_encoding(apsize);
va |= sllp << 5;
asm volatile(ASM_FTR_IFCLR("tlbie %0,0", PPC_TLBIE(%1,%0), %2)
: : "r" (va), "r"(0), "i" (CPU_FTR_ARCH_206)
......@@ -122,8 +121,7 @@ static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize)
/* clear out bits after(52) [0....52.....63] */
va &= ~((1ul << (64 - 52)) - 1);
va |= ssize << 8;
sllp = ((mmu_psize_defs[apsize].sllp & SLB_VSID_L) >> 6) |
((mmu_psize_defs[apsize].sllp & SLB_VSID_LP) >> 4);
sllp = get_sllp_encoding(apsize);
va |= sllp << 5;
asm volatile(".long 0x7c000224 | (%0 << 11) | (0 << 21)"
: : "r"(va) : "memory");
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment