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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /arch/powerpc/sysdev/6xx-suspend.S | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'arch/powerpc/sysdev/6xx-suspend.S')
| -rw-r--r-- | arch/powerpc/sysdev/6xx-suspend.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/6xx-suspend.S b/arch/powerpc/sysdev/6xx-suspend.S new file mode 100644 index 000000000..e882524ff --- /dev/null +++ b/arch/powerpc/sysdev/6xx-suspend.S @@ -0,0 +1,48 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Enter and leave sleep state on chips with 6xx-style HID0 + * power management bits, which don't leave sleep state via reset. + * + * Author: Scott Wood <scottwood@freescale.com> + * + * Copyright (c) 2006-2007 Freescale Semiconductor, Inc. + */ + +#include <asm/ppc_asm.h> +#include <asm/reg.h> +#include <asm/thread_info.h> +#include <asm/asm-offsets.h> + +_GLOBAL(mpc6xx_enter_standby) + mflr r4 + + mfspr r5, SPRN_HID0 + rlwinm r5, r5, 0, ~(HID0_DOZE | HID0_NAP) + oris r5, r5, HID0_SLEEP@h + mtspr SPRN_HID0, r5 + isync + + lis r5, ret_from_standby@h + ori r5, r5, ret_from_standby@l + mtlr r5 + + lwz r6, TI_LOCAL_FLAGS(r2) + ori r6, r6, _TLF_SLEEPING + stw r6, TI_LOCAL_FLAGS(r2) + + mfmsr r5 + ori r5, r5, MSR_EE + oris r5, r5, MSR_POW@h + sync + mtmsr r5 + isync + +1: b 1b + +ret_from_standby: + mfspr r5, SPRN_HID0 + rlwinm r5, r5, 0, ~HID0_SLEEP + mtspr SPRN_HID0, r5 + + mtlr r4 + blr |