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powerpc: Use an accessor for instructions

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In preparation for introducing a more complicated instruction type to
accommodate prefixed instructions use an accessor for getting an
instruction as a u32.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-8-jniethe5@gmail.com
This commit is contained in:
Jordan Niethe
2020-05-06 13:40:27 +10:00
committed by Michael Ellerman
parent 7534625128
commit 777e26f0ed
11 changed files with 190 additions and 179 deletions
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6
arch/powerpc/mm/fault.c
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@@ -49,7 +49,7 @@
static bool store_updates_sp(unsigned int inst)
{
/* check for 1 in the rA field */
if (((inst >> 16) & 0x1f) != 1)
if (((ppc_inst_val(inst) >> 16) & 0x1f) != 1)
return false;
/* check major opcode */
switch (inst >> 26) {
@@ -60,10 +60,10 @@ static bool store_updates_sp(unsigned int inst)
case OP_STFDU:
return true;
case OP_STD: /* std or stdu */
return (inst & 3) == 1;
return (ppc_inst_val(inst) & 3) == 1;
case OP_31:
/* check minor opcode */
switch ((inst >> 1) & 0x3ff) {
switch ((ppc_inst_val(inst) >> 1) & 0x3ff) {
case OP_31_XOP_STDUX:
case OP_31_XOP_STWUX:
case OP_31_XOP_STBUX: