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ACPI: PM: Avoid CPU cache flush when entering S4
authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Mon, 6 Dec 2021 12:29:52 +0000 (15:29 +0300)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 8 Dec 2021 15:09:25 +0000 (16:09 +0100)
commit777fc4aeb3913c1c139f1d0a03c742f8f89c95dd
tree4da4e9219a32e4d34582d7c52c30b122c0a6a98btree | snapshot
parenta2200a1a728925ec7975c22ebe5470181f223449commit | diff
ACPI: PM: Avoid CPU cache flush when entering S4

According to ACPI 6.4, Section 16.2, the CPU cache flushing is
required on entering to S1, S2, and S3.

No need to flush the caches during hibernation (S4).

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/sleep.c diff | blob | history
Linux Kernel Source Tree.