linux-kernel - Re: [Freedreno] [PATCH] drm/msm/dpu: Add more of the INTF interrupt regions

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Date:   Tue, 23 Nov 2021 13:17:08 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc:     Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-arm-msm@...r.kernel.org,
        Abhinav Kumar <abhinavk@...eaurora.org>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Robert Foss <robert.foss@...aro.org>,
        freedreno@...ts.freedesktop.org
Subject: Re: [Freedreno] [PATCH] drm/msm/dpu: Add more of the INTF interrupt
 regions

On Tue 23 Nov 12:54 PST 2021, Abhinav Kumar wrote:

> Hi Bjorn
> 
> On 11/23/2021 7:40 AM, Bjorn Andersson wrote:
> > In addition to the other 7xxx INTF interrupt regions, SM8350 has
> > additional INTF regions at 0x0ae37000, 0x0ae38000 and 0x0ae39000, define
> > these. The 7xxx naming scheme of the bits are kept for consistency.
> > 
> More than consistency, this is because both sc7280 and SM8350 use MDP's
> 7x hw version.
> 

Aha, didn't connect the dots.
Thank you for the clarification.

> Otherwise,
> 
> Reviewed-by: Abhinav Kumar <quic_abhinavk@...cinc.com>

Thanks,
Bjorn

> > Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> > ---
> >   .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c  | 18 ++++++++++++++++++
> >   .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h  |  3 +++
> >   2 files changed, 21 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
> > index d2b6dca487e3..a77a5eaa78ad 100644
> > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
> > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
> > @@ -30,6 +30,9 @@
> >   #define MDP_AD4_INTR_STATUS_OFF		0x420
> >   #define MDP_INTF_0_OFF_REV_7xxx             0x34000
> >   #define MDP_INTF_1_OFF_REV_7xxx             0x35000
> > +#define MDP_INTF_2_OFF_REV_7xxx             0x36000
> > +#define MDP_INTF_3_OFF_REV_7xxx             0x37000
> > +#define MDP_INTF_4_OFF_REV_7xxx             0x38000
> >   #define MDP_INTF_5_OFF_REV_7xxx             0x39000
> >   /**
> > @@ -110,6 +113,21 @@ static const struct dpu_intr_reg dpu_intr_set[] = {
> >   		MDP_INTF_1_OFF_REV_7xxx+INTF_INTR_EN,
> >   		MDP_INTF_1_OFF_REV_7xxx+INTF_INTR_STATUS
> >   	},
> > +	{
> > +		MDP_INTF_2_OFF_REV_7xxx+INTF_INTR_CLEAR,
> > +		MDP_INTF_2_OFF_REV_7xxx+INTF_INTR_EN,
> > +		MDP_INTF_2_OFF_REV_7xxx+INTF_INTR_STATUS
> > +	},
> > +	{
> > +		MDP_INTF_3_OFF_REV_7xxx+INTF_INTR_CLEAR,
> > +		MDP_INTF_3_OFF_REV_7xxx+INTF_INTR_EN,
> > +		MDP_INTF_3_OFF_REV_7xxx+INTF_INTR_STATUS
> > +	},
> > +	{
> > +		MDP_INTF_4_OFF_REV_7xxx+INTF_INTR_CLEAR,
> > +		MDP_INTF_4_OFF_REV_7xxx+INTF_INTR_EN,
> > +		MDP_INTF_4_OFF_REV_7xxx+INTF_INTR_STATUS
> > +	},
> >   	{
> >   		MDP_INTF_5_OFF_REV_7xxx+INTF_INTR_CLEAR,
> >   		MDP_INTF_5_OFF_REV_7xxx+INTF_INTR_EN,
> > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
> > index d50e78c9f148..1ab75cccd145 100644
> > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
> > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
> > @@ -26,6 +26,9 @@ enum dpu_hw_intr_reg {
> >   	MDP_AD4_1_INTR,
> >   	MDP_INTF0_7xxx_INTR,
> >   	MDP_INTF1_7xxx_INTR,
> > +	MDP_INTF2_7xxx_INTR,
> > +	MDP_INTF3_7xxx_INTR,
> > +	MDP_INTF4_7xxx_INTR,
> >   	MDP_INTF5_7xxx_INTR,
> >   	MDP_INTR_MAX,
> >   };
> >