Re: [PATCH] accel/ivpu: Don't enter d0i3 during FLR

2023-10-20 Thread Jeffrey Hugo
On 10/17/2023 2:43 AM, Stanislaw Gruszka wrote: On Fri, Oct 06, 2023 at 09:25:29AM -0600, Jeffrey Hugo wrote: On 10/3/2023 12:42 AM, Stanislaw Gruszka wrote: From: Jacek Lawrynowicz Fix a bug on some platforms where FLR causes complete system hang when CPU is low power states (C8 or above).

Re: [PATCH] accel/ivpu: Don't enter d0i3 during FLR

2023-10-18 Thread Stanislaw Gruszka
On Tue, Oct 17, 2023 at 10:43:07AM +0200, Stanislaw Gruszka wrote: > On Fri, Oct 06, 2023 at 09:25:29AM -0600, Jeffrey Hugo wrote: > > On 10/3/2023 12:42 AM, Stanislaw Gruszka wrote: > > > From: Jacek Lawrynowicz > > > > > > Fix a bug on some platforms where FLR causes complete system > > > hang

Re: [PATCH] accel/ivpu: Don't enter d0i3 during FLR

2023-10-17 Thread Stanislaw Gruszka
On Fri, Oct 06, 2023 at 09:25:29AM -0600, Jeffrey Hugo wrote: > On 10/3/2023 12:42 AM, Stanislaw Gruszka wrote: > > From: Jacek Lawrynowicz > > > > Fix a bug on some platforms where FLR causes complete system > > hang when CPU is low power states (C8 or above). > > Why does FLR cause a complete

Re: [PATCH] accel/ivpu: Don't enter d0i3 during FLR

2023-10-06 Thread Jeffrey Hugo
On 10/3/2023 12:42 AM, Stanislaw Gruszka wrote: From: Jacek Lawrynowicz Fix a bug on some platforms where FLR causes complete system hang when CPU is low power states (C8 or above). Why does FLR cause a complete system hang? Why does avoiding d0i3 fix the issue? Feels like there could be a

[PATCH] accel/ivpu: Don't enter d0i3 during FLR

2023-10-02 Thread Stanislaw Gruszka
From: Jacek Lawrynowicz Fix a bug on some platforms where FLR causes complete system hang when CPU is low power states (C8 or above). Fixes: 852be13f3bd3 ("accel/ivpu: Add PM support") Cc: sta...@vger.kernel.org Signed-off-by: Jacek Lawrynowicz Reviewed-by: Stanislaw Gruszka Signed-off-by: Sta