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| author |   Nicholas Piggin <npiggin@gmail.com> | 2022-09-20 22:22:58 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2022-09-28 19:22:10 +1000 |
| commit | dabeb572adf24bbd7cb21d1cc4d118bdf2c2ab74 (patch) | |
| tree | 8c1f893639c1a2accaeaa955f187d04b43acef6d /arch/powerpc/kernel/idle_64e.S | |
| parent | powerpc/time: avoid programming DEC at the start of the timer interrupt (diff) | |
| download | linux-dev-dabeb572adf24bbd7cb21d1cc4d118bdf2c2ab74.tar.xz linux-dev-dabeb572adf24bbd7cb21d1cc4d118bdf2c2ab74.zip | |
powerpc: add ISA v3.0 / v3.1 wait opcode macro
The wait instruction encoding changed between ISA v2.07 and ISA v3.0.
In v3.1 the instruction gained a new field.
Update the PPC_WAIT macro to the current encoding. Rename the older
incompatible one with a _v203 suffix as it was introduced in v2.03
(the WC field was introduced in v2.07 but the kernel only uses WC=0).
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220920122259.363092-1-npiggin@gmail.com
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/kernel/idle_64e.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/idle_64e.S b/arch/powerpc/kernel/idle_64e.S index 1736aad2afe9..0fc680e03dee 100644 --- a/arch/powerpc/kernel/idle_64e.S +++ b/arch/powerpc/kernel/idle_64e.S @@ -75,7 +75,7 @@ _GLOBAL(\name) .macro BOOK3E_IDLE_LOOP 1: - PPC_WAIT(0) + PPC_WAIT_v203 b 1b .endm |