diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2023-09-25 20:31:42 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-10-19 17:12:46 +1100 |
| commit | d20506d4728c3b7408e84d9aececbcb78c3061ee (patch) | |
| tree | a21513f5cc481702c2cd71fb0258ba8067944707 /arch/powerpc/mm | |
| parent | 58f534623c4d8800c2e5d63da9783530848e570c (diff) | |
powerpc/nohash: Add _PAGE_WRITE to supplement _PAGE_RW
Several places, _PAGE_RW maps to write permission and don't
always imply read. To make it more clear, do as book3s/64 in
commit c7d54842deb1 ("powerpc/mm: Use _PAGE_READ to indicate
Read access") and use _PAGE_WRITE when more relevant.
For the time being _PAGE_WRITE is equivalent to _PAGE_RW but that
will change when _PAGE_READ gets added in following patches.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/1f79b88db54d030ada776dc9845e0e88345bfc28.1695659959.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/nohash/e500.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/mm/nohash/e500.c b/arch/powerpc/mm/nohash/e500.c index 5b7d7a932bfd..921c3521ec11 100644 --- a/arch/powerpc/mm/nohash/e500.c +++ b/arch/powerpc/mm/nohash/e500.c @@ -117,7 +117,7 @@ static void settlbcam(int index, unsigned long virt, phys_addr_t phys, TLBCAM[index].MAS2 |= (flags & _PAGE_ENDIAN) ? MAS2_E : 0; TLBCAM[index].MAS3 = (phys & MAS3_RPN) | MAS3_SR; - TLBCAM[index].MAS3 |= (flags & _PAGE_RW) ? MAS3_SW : 0; + TLBCAM[index].MAS3 |= (flags & _PAGE_WRITE) ? MAS3_SW : 0; if (mmu_has_feature(MMU_FTR_BIG_PHYS)) TLBCAM[index].MAS7 = (u64)phys >> 32; @@ -125,7 +125,7 @@ static void settlbcam(int index, unsigned long virt, phys_addr_t phys, if (!is_kernel_addr(virt)) { TLBCAM[index].MAS3 |= MAS3_UR; TLBCAM[index].MAS3 |= (flags & _PAGE_EXEC) ? MAS3_UX : 0; - TLBCAM[index].MAS3 |= (flags & _PAGE_RW) ? MAS3_UW : 0; + TLBCAM[index].MAS3 |= (flags & _PAGE_WRITE) ? MAS3_UW : 0; } else { TLBCAM[index].MAS3 |= (flags & _PAGE_EXEC) ? MAS3_SX : 0; } |