Re: [PATCH 05/10] drm/msm/dpu: Allow variable SSPP/INTF_BLK size

From: Marijn Suijten
Date: Mon Feb 13 2023 - 06:13:05 EST


On 2023-02-11 13:26:51, Konrad Dybcio wrote:
> These blocks are of variable length on different SoCs. Set the
> correct values where I was able to retrieve it from downstream
> DTs and leave the old defaults (0x1c8 for sspp and 0x280 for
> intf) otherwise.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> ---
> .../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 242 +++++++++---------
> 1 file changed, 121 insertions(+), 121 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> index 802050118345..d9ef1e133c1e 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
[..]
> @@ -1848,10 +1848,10 @@ static struct dpu_dsc_cfg sm8150_dsc[] = {
> /*************************************************************
> * INTF sub blocks config
> *************************************************************/
> -#define INTF_BLK(_name, _id, _base, _type, _ctrl_id, _progfetch, _features, _reg, _underrun_bit, _vsync_bit) \
> +#define INTF_BLK(_name, _id, _base, _len, _type, _ctrl_id, _progfetch, _features, _reg, _underrun_bit, _vsync_bit) \

Dmitry and I discussed in #freedreno to instead add the INTF_BLK_DSI_TE
macro that accounts for the INTF TE registers using this higher register
area, as well as an extended signature to configure extra interrupts.

(Besides, I think the len is currently only used for snapshot dumping
and no validation for out-of-blk reads/writes)

> {\
> .name = _name, .id = _id, \
> - .base = _base, .len = 0x280, \
> + .base = _base, .len = _len, \
> .features = _features, \
> .type = _type, \
> .controller_id = _ctrl_id, \
[..]

- Marijn