Messages in this thread Patch in this message |  | | Date | Sun, 19 Jan 2003 22:40:48 +0100 | From | Pavel Machek <> | Subject | Make restoring of graphics state on S3 resume run-time settable |
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Hi!
This makes it possible to select method of bios restoring after S3 resume. [=> no more ugly ifdefs]. Please apply, Pavel
--- clean/arch/i386/kernel/acpi.c 2003-01-17 23:13:33.000000000 +0100 +++ linux-swsusp/arch/i386/kernel/acpi.c 2003-01-19 19:10:48.000000000 +0100 @@ -454,6 +454,7 @@ /* address in low memory of the wakeup routine. */ unsigned long acpi_wakeup_address = 0; +unsigned long acpi_video_flags; extern char wakeup_start, wakeup_end; extern unsigned long FASTCALL(acpi_copy_wakeup_routine(unsigned long)); @@ -520,4 +547,20 @@ printk(KERN_DEBUG "ACPI: have wakeup address 0x%8.8lx\n", acpi_wakeup_address); } +static int __init acpi_sleep_setup(char *str) +{ + while ((str != NULL) && (*str != '\0')) { + if (strncmp(str, "s3_bios", 7) == 0) + acpi_video_flags = 1; + if (strncmp(str, "s3_mode", 7) == 0) + acpi_video_flags |= 2; + str = strchr(str, ','); + if (str != NULL) + str += strspn(str, ", \t"); + } + return 1; +} + + +__setup("acpi_sleep=", acpi_sleep_setup); #endif /*CONFIG_ACPI_SLEEP*/ --- clean/arch/i386/kernel/acpi_wakeup.S 2002-12-18 22:20:47.000000000 +0100 +++ linux-swsusp/arch/i386/kernel/acpi_wakeup.S 2003-01-19 17:39:21.000000000 +0100 @@ -41,20 +41,19 @@ cmpl $0x12345678, %eax jne bogus_real_magic -#if 1 + testl $1, video_flags - wakeup_code + jz 1f lcall $0xc000,$3 -#endif -#if 0 +1: + + testl $2, video_flags - wakeup_code + jz 1f mov video_mode - wakeup_code, %ax call mode_set -#endif +1: # set up page table -#if 1 movl $swapper_pg_dir-__PAGE_OFFSET, %eax -#else - movl (real_save_cr3 - wakeup_data), %eax -#endif movl %eax, %cr3 # make sure %cr4 is set correctly (features, etc) @@ -86,6 +85,7 @@ real_save_cr4: .long 0 real_magic: .long 0 video_mode: .long 0 +video_flags: .long 0 bogus_real_magic: movw $0x0e00 + 'B', %fs:(0x12) @@ -254,6 +254,8 @@ movl saved_videomode, %edx movl %edx, video_mode - wakeup_start (%eax) + movl acpi_video_flags, %edx + movl %edx, video_flags - wakeup_start (%eax) movl $0x12345678, real_magic - wakeup_start (%eax) movl $0x12345678, saved_magic ret -- Worst form of spam? Adding advertisment signatures ala sourceforge.net. What goes next? Inserting advertisment *into* email? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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