Re: [Nouveau] [RFC PATCH v2] clk: Remove BYPASS_PLL_CHECK from PLLs

2019-09-04 Thread Ilia Mirkin
Can you check to see if that bit was set prior to entering the code? I wonder if you can just restore it if it was there, and leave it if it's not? On Wed, Sep 4, 2019 at 10:28 AM Mark Menzynski wrote: > > I have looked at problem with Fermi GPUs where changing to higher clock > led to really bad

[Nouveau] [RFC PATCH v2] clk: Remove BYPASS_PLL_CHECK from PLLs

2019-09-04 Thread Mark Menzynski
I have looked at problem with Fermi GPUs where changing to higher clock led to really bad perfomance (with GpuTest 20x worse perfomance) and later also crashes of the nouveau. It seemed to be affected by Shader Clock in Voltage Entries in the video BIOS. Disabling BYPASS_PLL_CHECK in CLK0_CTRL see