diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2023-09-25 20:31:47 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-10-19 17:12:47 +1100 |
| commit | 46ebef51fd92f52ba7dca21d3c4332e4127de515 (patch) | |
| tree | b6ce8fbd07f2c82b57285a4b977428226ea65d01 /arch/powerpc/mm/book3s32/mmu.c | |
| parent | ed815bd3fe9b14a742e2ae094f7f55f70918dbbc (diff) | |
powerpc/32s: 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/5798782869fe4d2698f104948dabd17657b89395.1695659959.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/mm/book3s32/mmu.c')
| -rw-r--r-- | arch/powerpc/mm/book3s32/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c index d1041c946ce2..5445587bfe84 100644 --- a/arch/powerpc/mm/book3s32/mmu.c +++ b/arch/powerpc/mm/book3s32/mmu.c @@ -277,7 +277,7 @@ void __init setbat(int index, unsigned long virt, phys_addr_t phys, /* Do DBAT first */ wimgxpp = flags & (_PAGE_WRITETHRU | _PAGE_NO_CACHE | _PAGE_COHERENT | _PAGE_GUARDED); - wimgxpp |= (flags & _PAGE_RW)? BPP_RW: BPP_RX; + wimgxpp |= (flags & _PAGE_WRITE) ? BPP_RW : BPP_RX; bat[1].batu = virt | (bl << 2) | 2; /* Vs=1, Vp=0 */ bat[1].batl = BAT_PHYS_ADDR(phys) | wimgxpp; if (!is_kernel_addr(virt)) |