On 07/02/2014 03:01 PM, Rob Clark wrote:
As far as I can tell from diving downstream android kgsl code, seems like some a2xx you might be able to read the value from hw. Beyond that I'm not entirely sure. (Remember, no docs.)
Ohhh! I get to tell a story! The on chip registers have a long and consistent history of being wrong. And not just the spin ID being wrong - the major and minor have had their issues too. It got to the point that sometime around the A320 timeframe we put our foot down and decided that we would never again rely on the hardware. The reasoning is that the SoC and the GPU are on the same die so we can use the one to identify the other. And thats what we've done since then - first in the board files and now in the DT. So long story short - the registers are there, we don't trust them as far as we could throw them. Use the SoC instead. Jordan -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
