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Date: Mon, 17 Feb 2020 11:06:02 +0800 From: Qiang Yu <yuq825@...il.com> To: Vasily Khoruzhick <anarsoul@...il.com> Cc: David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>, dri-devel <dri-devel@...ts.freedesktop.org>, lima@...ts.freedesktop.org, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] drm/lima: fix recovering from PLBU out of memory applied to drm-misc-next. On Mon, Feb 17, 2020 at 9:20 AM Qiang Yu <yuq825@...il.com> wrote: > > Looks good for me, patch is: > Reviewed-by: Qiang Yu <yuq825@...il.com> > > Regards, > Qiang > > On Sat, Feb 15, 2020 at 11:50 AM Vasily Khoruzhick <anarsoul@...il.com> wrote: > > > > It looks like on PLBU_OUT_OF_MEM interrupt we need to resume from where we > > stopped, i.e. new PLBU heap start is old end. Also update end address > > in GP frame to grow heap on 2nd and subsequent out of memory interrupts. > > > > Fixes: 2081e8dcf1ee ("drm/lima: recover task by enlarging heap buffer") > > Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com> > > --- > > drivers/gpu/drm/lima/lima_gp.c | 7 ++++++- > > 1 file changed, 6 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/gpu/drm/lima/lima_gp.c b/drivers/gpu/drm/lima/lima_gp.c > > index d1e7826c2d74..325604262def 100644 > > --- a/drivers/gpu/drm/lima/lima_gp.c > > +++ b/drivers/gpu/drm/lima/lima_gp.c > > @@ -224,8 +224,13 @@ static int lima_gp_task_recover(struct lima_sched_pipe *pipe) > > } > > > > gp_write(LIMA_GP_INT_MASK, LIMA_GP_IRQ_MASK_USED); > > + /* Resume from where we stopped, i.e. new start is old end */ > > + gp_write(LIMA_GP_PLBU_ALLOC_START_ADDR, > > + f[LIMA_GP_PLBU_ALLOC_END_ADDR >> 2]); > > + f[LIMA_GP_PLBU_ALLOC_END_ADDR >> 2] = > > + f[LIMA_GP_PLBU_ALLOC_START_ADDR >> 2] + task->heap->heap_size; > > gp_write(LIMA_GP_PLBU_ALLOC_END_ADDR, > > - f[LIMA_GP_PLBU_ALLOC_START_ADDR >> 2] + task->heap->heap_size); > > + f[LIMA_GP_PLBU_ALLOC_END_ADDR >> 2]); > > gp_write(LIMA_GP_CMD, LIMA_GP_CMD_UPDATE_PLBU_ALLOC); > > return 0; > > } > > -- > > 2.25.0 > >
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