Re: [Intel-gfx] [PATCH] drm/i915: Implement workaround for CDCLK PLL disable/enable

2023-01-30 Thread Srivatsa, Anusha
> -Original Message- > From: Lisovskiy, Stanislav > Sent: Monday, January 30, 2023 5:59 AM > To: intel-gfx@lists.freedesktop.org > Cc: Lisovskiy, Stanislav ; Saarinen, Jani > ; Srivatsa, Anusha > Subject: [PATCH] drm/i915: Implement workaround for CDCLK PLL > disable/enable > > It was

[Intel-gfx] [PATCH] drm/i915: Implement workaround for CDCLK PLL disable/enable

2023-01-30 Thread Stanislav Lisovskiy
It was reported that we might get a hung and loss of register access in some cases when CDCLK PLL is disabled and then enabled, while squashing is enabled. As a workaround it was proposed by HW team that SW should disable squashing when CDCLK PLL is being reenabled. v2: - Added WA number comment(R

Re: [Intel-gfx] [PATCH] drm/i915: Implement workaround for CDCLK PLL disable/enable

2023-01-24 Thread Rodrigo Vivi
On Tue, Jan 24, 2023 at 09:42:24AM +0200, Lisovskiy, Stanislav wrote: > On Mon, Jan 23, 2023 at 02:52:37PM -0500, Rodrigo Vivi wrote: > > On Mon, Jan 23, 2023 at 03:16:11PM +0200, Stanislav Lisovskiy wrote: > > > It was reported that we might get a hung and loss of register access in > > > some cas

Re: [Intel-gfx] [PATCH] drm/i915: Implement workaround for CDCLK PLL disable/enable

2023-01-23 Thread Lisovskiy, Stanislav
On Mon, Jan 23, 2023 at 02:52:37PM -0500, Rodrigo Vivi wrote: > On Mon, Jan 23, 2023 at 03:16:11PM +0200, Stanislav Lisovskiy wrote: > > It was reported that we might get a hung and loss of register access in > > some cases when CDCLK PLL is disabled and then enabled, while squashing > > is enabled

Re: [Intel-gfx] [PATCH] drm/i915: Implement workaround for CDCLK PLL disable/enable

2023-01-23 Thread Rodrigo Vivi
On Mon, Jan 23, 2023 at 03:16:11PM +0200, Stanislav Lisovskiy wrote: > It was reported that we might get a hung and loss of register access in > some cases when CDCLK PLL is disabled and then enabled, while squashing > is enabled. > As a workaround it was proposed by HW team that SW should disable

[Intel-gfx] [PATCH] drm/i915: Implement workaround for CDCLK PLL disable/enable

2023-01-23 Thread Stanislav Lisovskiy
It was reported that we might get a hung and loss of register access in some cases when CDCLK PLL is disabled and then enabled, while squashing is enabled. As a workaround it was proposed by HW team that SW should disable squashing when CDCLK PLL is being reenabled. Signed-off-by: Stanislav Lisovs