PM: Integrate beeping flag with existing acpi_sleep flags

Move "debug during resume from s2ram" into the variable we already use
for real-mode flags to simplify code. It also closes nasty trap for
the user in acpi_sleep_setup; order of parameters actually mattered there,
acpi_sleep=s3_bios,s3_mode doing something different from
acpi_sleep=s3_mode,s3_bios.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 11 insertions, 12 deletions

diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c
index 195b7034a148..4277f2b27e6d 100644
--- a/arch/x86_64/kernel/acpi/sleep.c
+++ b/arch/x86_64/kernel/acpi/sleep.c
@@ -55,7 +55,7 @@
 
 /* address in low memory of the wakeup routine. */
 unsigned long acpi_wakeup_address = 0;
-unsigned long acpi_video_flags;
+unsigned long acpi_realmode_flags;
 extern char wakeup_start, wakeup_end;
 
 extern unsigned long acpi_copy_wakeup_routine(unsigned long);
@@ -103,9 +103,11 @@ static int __init acpi_sleep_setup(char *str)
 {
         while ((str != NULL) && (*str != '\0')) {
                 if (strncmp(str, "s3_bios", 7) == 0)
-                        acpi_video_flags = 1;
+                        acpi_realmode_flags |= 1;
                 if (strncmp(str, "s3_mode", 7) == 0)
-                        acpi_video_flags |= 2;
+                        acpi_realmode_flags |= 2;
+                if (strncmp(str, "s3_beep", 7) == 0)
+                        acpi_realmode_flags |= 4;
                 str = strchr(str, ',');
                 if (str != NULL)
                         str += strspn(str, ", \t");
diff --git a/arch/x86_64/kernel/acpi/wakeup.S b/arch/x86_64/kernel/acpi/wakeup.S
index ed63d1845792..13f1480cbec9 100644
--- a/arch/x86_64/kernel/acpi/wakeup.S
+++ b/arch/x86_64/kernel/acpi/wakeup.S
@@ -50,7 +50,7 @@ wakeup_code:
         movw    %ax, %ss
 
         # Data segment must be set up before we can see whether to beep.
-        testl   $1, beep_flags - wakeup_code
+        testl   $4, realmode_flags - wakeup_code
         jz      1f
         BEEP
 1:
@@ -70,7 +70,7 @@ wakeup_code:
         testl   %eax, %eax
         jnz     no_longmode
 
-        testl   $1, video_flags - wakeup_code
+        testl   $1, realmode_flags - wakeup_code
         jz      1f
         lcall   $0xc000,$3
         movw    %cs, %ax
@@ -78,7 +78,7 @@ wakeup_code:
         movw    %ax, %ss
 1:
 
-        testl   $2, video_flags - wakeup_code
+        testl   $2, realmode_flags - wakeup_code
         jz      1f
         mov     video_mode - wakeup_code, %ax
         call    mode_seta
@@ -251,9 +251,8 @@ gdt_48a:
         .long   gdta - wakeup_code              # gdt base (relocated in later)
         
 real_magic:     .quad 0
-beep_flags:     .quad 0
 video_mode:     .quad 0
-video_flags:    .quad 0
+realmode_flags: .quad 0
 
 .code16
 bogus_real_magic:
@@ -367,12 +366,10 @@ ENTRY(acpi_copy_wakeup_routine)
         pushq   %rax
         pushq   %rdx
 
-        movl    s2ram_beep, %edx
-        movl    %edx, beep_flags - wakeup_start (,%rdi)
         movl    saved_video_mode, %edx
         movl    %edx, video_mode - wakeup_start (,%rdi)
-        movl    acpi_video_flags, %edx
-        movl    %edx, video_flags - wakeup_start (,%rdi)
+        movl    acpi_realmode_flags, %edx
+        movl    %edx, realmode_flags - wakeup_start (,%rdi)
         movq    $0x12345678, real_magic - wakeup_start (,%rdi)
         movq    $0x123456789abcdef0, %rdx
         movq    %rdx, saved_magic