[PATCH 10/12] firmware: qcom_scm: Add qcom_scm_gpu_zap_resume()

Jordan Crouse jcrouse at codeaurora.org
Fri Jan 13 17:22:45 UTC 2017


On Fri, Jan 13, 2017 at 11:12:41AM -0600, Andy Gross wrote:
> On Mon, Nov 28, 2016 at 12:28:35PM -0700, Jordan Crouse wrote:
> > Add an interface to trigger the remote processor to reinitialize the GPU
> > zap shader on power-up.
> > 
> > Signed-off-by: Jordan Crouse <jcrouse at codeaurora.org>
> > ---
> 
> <snip>
> 
> > +int __qcom_scm_gpu_zap_resume(struct device *dev)
> > +{
> > +	struct qcom_scm_desc desc = {0};
> > +	struct arm_smccc_res res;
> > +	int ret;
> > +
> > +	desc.args[0] = 0;
> > +	desc.args[1] = 13;
> 
> Can I get a define here for these two?  Or maybe a comment on what these values
> are?
> 
> > +	desc.arginfo = QCOM_SCM_ARGS(2);
> > +
> > +	ret = qcom_scm_call(dev, QCOM_SCM_SVC_BOOT, 0x0A, &desc, &res);
> 
> Same with the 0xA.  We usually throw a #define in for the command definitions.
> 
> Otherwise this all looks fine.  If you can get back to me with either the values
> or a new patch I can include this in the next pull.

Thanks for reaching out. Since this isn't my usual area I'll need to work out
some terminology with the SCM folks to make sure I don't accidentally do
anything that will get me in trouble.

Jordan
-- 
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