linux-kernel - Re: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

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Date:	Sun, 23 Dec 2012 03:52:11 -0800
From:	Joe Perches <joe@...ches.com>
To:	Andy Furniss <andyqos@...sn.org>
Cc:	Borislav Petkov <bp@...en8.de>,
	Alex Deucher <alexdeucher@...il.com>,
	Alex Deucher <alexander.deucher@....com>,
	dri-devel@...ts.freedesktop.org,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec

On Sun, 2012-12-23 at 11:01 +0000, Andy Furniss wrote:
> Borislav Petkov wrote:
> 
> > [   28.191072] radeon: `0' invalid for parameter `wb'
> >
> > although the whole driver blubber didn't appear on the console fterwards
> > aso something got turned off allright.
> >
> > Then, I went and tried "radeon.no_wb" where the driver blubber appeared
> > but AGP writeback was still enabled:
> 
> no_wb=1 should work.

Perhaps some of the module_param_named(,,int,) should be bool
Also, are all of the various permissions appropriate?

$ git grep module_param_named drivers/gpu/drm/radeon/
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(no_wb, radeon_no_wb, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(modeset, radeon_modeset, int, 0400);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(dynclks, radeon_dynclks, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(vramlimit, radeon_vram_limit, int, 0600);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(agpmode, radeon_agpmode, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(gartsize, radeon_gart_size, int, 0600);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(benchmark, radeon_benchmarking, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(test, radeon_testing, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(connector_table, radeon_connector_table, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(tv, radeon_tv, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(audio, radeon_audio, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(disp_priority, radeon_disp_priority, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(hw_i2c, radeon_hw_i2c, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(msi, radeon_msi, int, 0444);
drivers/gpu/drm/radeon/radeon_drv.c:module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);


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