[Intel-gfx] [PATCH 1/6] drm/i915: Fix gen4 GPU reset

Chris Wilson chris at chris-wilson.co.uk
Sat Nov 22 12:05:15 CET 2014


On Fri, Nov 21, 2014 at 09:54:25PM +0200, ville.syrjala at linux.intel.com wrote:
> +	/* assert reset for at least 20 usec */
> +	pci_write_config_byte(dev->pdev, I965_GDRST, GRDOM_RESET_ENABLE);

Is this an UC write or do we need to post?

> +	udelay(20);
>  	pci_write_config_byte(dev->pdev, I965_GDRST, 0);
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre



More information about the Intel-gfx mailing list