On Tue, Aug 19, 2014 at 10:13:36AM +0100, Thomas Daniel wrote:
> A previous commit broke aliasing PPGTT for lrc, resulting in a kernel oops
> on boot. Add a check so that is full PPGTT is not in use the context is
> populated with the aliasing PPGTT.
Usually, we add a bit of history to the patch (even for trivial things)
something like:
v2: blah blah blah blah
But doesn't really matter much this time.
Reviewed-by: Damien Lespiau <damien.lesp...@intel.com>
--
Damien
> Issue: VIZ-4278
> Signed-off-by: Thomas Daniel <thomas.dan...@intel.com>
> ---
> drivers/gpu/drm/i915/intel_lrc.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/intel_lrc.c
> b/drivers/gpu/drm/i915/intel_lrc.c
> index c096b9b..b54f312 100644
> --- a/drivers/gpu/drm/i915/intel_lrc.c
> +++ b/drivers/gpu/drm/i915/intel_lrc.c
> @@ -1452,12 +1452,17 @@ static int
> populate_lr_context(struct intel_context *ctx, struct drm_i915_gem_object
> *ctx_obj,
> struct intel_engine_cs *ring, struct intel_ringbuffer
> *ringbuf)
> {
> + struct drm_device *dev = ring->dev;
> + struct drm_i915_private *dev_priv = dev->dev_private;
> struct drm_i915_gem_object *ring_obj = ringbuf->obj;
> struct i915_hw_ppgtt *ppgtt = ctx->ppgtt;
> struct page *page;
> uint32_t *reg_state;
> int ret;
>
> + if (!ppgtt)
> + ppgtt = dev_priv->mm.aliasing_ppgtt;
> +
> ret = i915_gem_object_set_to_cpu_domain(ctx_obj, true);
> if (ret) {
> DRM_DEBUG_DRIVER("Could not set to CPU domain\n");
> --
> 1.7.9.5
>
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