On Mon, 2008-11-17 at 18:14 +0800, Li Peng wrote: > This patch restore HWS_PGA for device who don't use gtt mapped hardware > status page. > It is to fix the suspend/resume failure of xf86-video-intel dri2 branch > on 945GME, as the dri2 branch doesn't call I830Resume() to restore > hardware status page anymore and we need to handle this in > i915_gem_entervt_ioctl()
This should also be saved/restored in i915_suspend.c so that it works
correctly in the absence of the X Server doing the enter/leavevt path.
> Peng
> diff --git a/drivers/gpu/drm/i915/i915_gem.c
> b/drivers/gpu/drm/i915/i915_gem.c
> index a15b098..b6b451a 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -2924,8 +2924,13 @@ i915_gem_init_hws(struct drm_device *dev)
> /* If we need a physical address for the status page, it's already
> * initialized at driver load time.
> */
> - if (!I915_NEED_GFX_HWS(dev))
> + if (!I915_NEED_GFX_HWS(dev)) {
> + if (dev_priv->mm.suspended) {
> + I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
> + I915_READ(HWS_PGA); /* posting read */
> + }
> return 0;
> + }
>
> obj = drm_gem_object_alloc(dev, 4096);
> if (obj == NULL) {
>
>
> _______________________________________________
> Intel-gfx mailing list
> [EMAIL PROTECTED]
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Eric Anholt
[EMAIL PROTECTED] [EMAIL PROTECTED]
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