提交 7a4b7e5e 编写于 作者: J Jan Beulich 提交者: Ingo Molnar

x86: Fix Suspend to RAM freeze on Acer Aspire 1511Lmi laptop

Move the trampoline and accessors back out of .cpuinit.* for the
case of 64-bits+ACPI_SLEEP.

This solves s2ram hangs reported in:

  http://bugzilla.kernel.org/show_bug.cgi?id=14279Reported-and-bisected-by: NChristian Casteyde <casteyde.christian@free.fr>
Signed-off-by: NJan Beulich <jbeulich@novell.com>
Cc: <bugzilla-daemon@bugzilla.kernel.org>
Cc: "Andrew Morton" <akpm@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
上级 d0153ca3
......@@ -3,8 +3,16 @@
#include <asm/trampoline.h>
#include <asm/e820.h>
#if defined(CONFIG_X86_64) && defined(CONFIG_ACPI_SLEEP)
#define __trampinit
#define __trampinitdata
#else
#define __trampinit __cpuinit
#define __trampinitdata __cpuinitdata
#endif
/* ready for x86_64 and x86 */
unsigned char *__cpuinitdata trampoline_base = __va(TRAMPOLINE_BASE);
unsigned char *__trampinitdata trampoline_base = __va(TRAMPOLINE_BASE);
void __init reserve_trampoline_memory(void)
{
......@@ -26,7 +34,7 @@ void __init reserve_trampoline_memory(void)
* bootstrap into the page concerned. The caller
* has made sure it's suitably aligned.
*/
unsigned long __cpuinit setup_trampoline(void)
unsigned long __trampinit setup_trampoline(void)
{
memcpy(trampoline_base, trampoline_data, TRAMPOLINE_SIZE);
return virt_to_phys(trampoline_base);
......
......@@ -32,8 +32,12 @@
#include <asm/segment.h>
#include <asm/processor-flags.h>
#ifdef CONFIG_ACPI_SLEEP
.section .rodata, "a", @progbits
#else
/* We can free up the trampoline after bootup if cpu hotplug is not supported. */
__CPUINITRODATA
#endif
.code16
ENTRY(trampoline_data)
......
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