Micheal Marineau napsal(a):
Here is a cleaned up version of the patch to repost radeon cards when
resuming from acpi s3 suspend. I've been sitting on it for a while
hoping that I might be able to gain some insight in how to use the d2
state instead of this repost as ppc does. On my x86 laptop with a
radeon 9000 resuming from d2 does manage to turn on the card/display,
but it becomes horridly scrambled. But right now I don't have the time
or the skill to actually get any futher than that.
And btw, posting the card still causes the system to wait for a key
press. I don't know if that is solvable with the current post method.
Getting the existing d2 suspend/resume stuff to work might be the only
way to clear that up.
------------------------------------------------------------------------
Index: linux-2.6.13-rc3/arch/i386/kernel/acpi/sleep.c
===================================================================
--- linux-2.6.13-rc3.orig/arch/i386/kernel/acpi/sleep.c 2005-07-12
21:46:46.000000000 -0700
+++ linux-2.6.13-rc3/arch/i386/kernel/acpi/sleep.c 2005-07-29
19:03:56.000000000 -0700
@@ -5,6 +5,7 @@
* Copyright (C) 2001-2003 Pavel Machek <[EMAIL PROTECTED]>
*/
+#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/bootmem.h>
#include <linux/dmi.h>
@@ -56,6 +57,34 @@
zap_low_mappings();
}
+/*
+ * acpi_vgapost
+ */
+
+extern void do_vgapost_lowlevel (unsigned long);
the comment is for acpi_vgapost, not for some extern somewhat, maybe...
+
+void acpi_vgapost (unsigned long slot)
+{
+ unsigned long flags, saved_video_flags = acpi_video_flags;
+
+ acpi_video_flags = (slot & 0xffff) << 16 | 1;
+
+ /* Map low memory and copy information */
+ init_low_mapping(swapper_pg_dir, USER_PTRS_PER_PGD);
+ memcpy((void *) acpi_wakeup_address, &wakeup_start, &wakeup_end -
&wakeup_start);
80 chars on line max, please.
+ acpi_copy_wakeup_routine(acpi_wakeup_address);
+
+ /* Tunnel thru real mode */
+ local_irq_save(flags);
+ do_vgapost_lowlevel(acpi_wakeup_address);
+ local_irq_restore(flags);
+
[snip]
static void radeon_set_suspend(struct radeonfb_info *rinfo, int suspend)
{
u16 pwr_cmd;
@@ -2657,6 +2666,8 @@
*/
else if (rinfo->pm_mode & radeon_pm_d2)
radeon_set_suspend(rinfo, 0);
+ if (rinfo->pm_mode & radeon_pm_post && rinfo->reinit_func !=
NULL)
80 too
+ rinfo->reinit_func(rinfo);
rinfo->asleep = 0;
} else
@@ -2777,6 +2788,13 @@
#endif
}
#endif /* defined(CONFIG_PM) && defined(CONFIG_PPC_OF) */
[snip]
It looks good, otherwise.
--
Jiri Slaby www.fi.muni.cz/~xslaby
~\-/~ [EMAIL PROTECTED] ~\-/~
241B347EC88228DE51EE A49C4A73A25004CB2A10
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