Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [Linux-fbdev-devel] Fwd: [Suspend-devel] resume not working on acer ferrari 4005 with radeonfb enabled | Date | Thu, 16 Nov 2006 23:44:40 +0100 |
| |
On Thursday, 16 November 2006 23:17, Christian Hoffmann wrote: > > > > > > > Well, if you acquire the console sem you need to release it too :-) > > > > Or the console semaphore is acquired too many times. > > > > Christian, could you please add release_console_sem() before 'return 0' > > and see if that makes the code work again? If not, could you add a > > printk() in kernel/printk.c/acquire_console_sem() to see how many times it > > is called? > > Ok, I did that and the machine resumes OK. Now I have the impression that > accessing the rinfo struct here: > > if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) { > /* Wakeup chip. Check from config space if we were powered off > * (todo: additionally, check CLK_PIN_CNTL too) > */ > if ((rinfo->pm_mode & radeon_pm_off) && > radeon_restore_pci_cfg(rinfo)) {
I think the call to radeon_restore_pci_cfg(rinfo) causes the problem to happen.
> if (rinfo->reinit_func != NULL) { > rinfo->reinit_func(rinfo); > } > else { > goto bail; > } > } > /* If we support D2, try to resume... we should check what was > our > * state though... (were we really in D2 state ?). Right now, > this code > * is only enable on Macs so it's fine. > */ > else if (rinfo->pm_mode & radeon_pm_d2){ > radeon_set_suspend(rinfo, 0); > } > rinfo->asleep = 0; ////makes it crash > } else { > radeon_engine_idle(); > } > > makes the resume fail. The machine locks up. I started xorg without drm/dri > and then it goes a little further and locks up in the next steps: > > /* Restore display & engine */ > radeon_write_mode (rinfo, &rinfo->state, 1); > > But it starts to get too complicated for me :(
Unfortunately for me too. Someone who knows the radeonfb code is needed.
Greetings, Rafael
-- You never change things by fighting the existing reality. R. Buckminster Fuller - 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/
| |