[PATCH v1 5/5] drm/msm/dpu: add DSC 1.2 hw blocks for relevant chipsets
Kuogee Hsieh
quic_khsieh at quicinc.com
Fri Apr 21 23:16:59 UTC 2023
On 4/21/2023 4:11 PM, Dmitry Baryshkov wrote:
> On 22/04/2023 02:08, Kuogee Hsieh wrote:
>>
>> On 4/21/2023 3:16 PM, Dmitry Baryshkov wrote:
>>> On 22/04/2023 01:05, Kuogee Hsieh wrote:
>>>>
>>>> On 4/20/2023 5:07 PM, Dmitry Baryshkov wrote:
>>>>> On 21/04/2023 02:25, Kuogee Hsieh wrote:
>>>>>> From: Abhinav Kumar <quic_abhinavk at quicinc.com>
>>>>>>
>>>>>> Add DSC 1.2 hardware blocks to the catalog with necessary
>>>>>> sub-block and feature flag information.
>>>>>> Each display compression engine (DCE) contains dual hard
>>>>>> slice DSC encoders so both share same base address but with
>>>>>> its own different sub block address.
>>>>>
>>>>> Please correct line wrapping. 72-75 is usually the preferred width
>>>>>
>>>>>>
>>>>>> Signed-off-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
>>>>>> Signed-off-by: Kuogee Hsieh <quic_khsieh at quicinc.com>
>>>>>> ---
>>>>>> .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h | 19
>>>>>> +++++++++++++++++++
>>>>>> .../gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h | 11
>>>>>> +++++++++++
>>>>>> .../drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h | 21
>>>>>> +++++++++++++++++++++
>>>>>> .../gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h | 19
>>>>>> +++++++++++++++++++
>>>>>> .../gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h | 19
>>>>>> +++++++++++++++++++
>>>>>> drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 12
>>>>>> ++++++++++--
>>>>>> 6 files changed, 99 insertions(+), 2 deletions(-)
>>>>>>
>>>>>
>>>>>
>>>>> [I commented on sm8550, it applies to all the rest of platforms]
>>>>>
>>>>>> diff --git
>>>>>> a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
>>>>>> b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
>>>>>> index 9e40303..72a7bcf 100644
>>>>>> --- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
>>>>>> +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
>>>>>> @@ -165,6 +165,23 @@ static const struct dpu_merge_3d_cfg
>>>>>> sm8550_merge_3d[] = {
>>>>>> MERGE_3D_BLK("merge_3d_3", MERGE_3D_3, 0x66700),
>>>>>> };
>>>>>> +static const struct dpu_dsc_sub_blks sm8550_dsc_sblk_0 = {
>>>>>> + .enc = {.base = 0x100, .len = 0x100},
>>>>>> + .ctl = {.base = 0xF00, .len = 0x10},
>>>>>> +};
>>>>>> +
>>>>>> +static const struct dpu_dsc_sub_blks sm8550_dsc_sblk_1 = {
>>>>>> + .enc = {.base = 0x200, .len = 0x100},
>>>>>> + .ctl = {.base = 0xF80, .len = 0x10},
>>>>>> +};
>>>>>
>>>>> Please keep sblk in dpu_hw_catalog for now.
>>>>>
>>>>>> +
>>>>>> +static const struct dpu_dsc_cfg sm8550_dsc[] = {
>>>>>> + DSC_BLK_1_2("dsc_0", DSC_0, 0x80000, 0x100, 0,
>>>>>> sm8550_dsc_sblk_0),
>>>>>> + DSC_BLK_1_2("dsc_0", DSC_1, 0x80000, 0x100, 0,
>>>>>> sm8550_dsc_sblk_1),
>>>>>
>>>>> Is there a reason why index in "dsc_N" doesn't match the DSC_n
>>>>> which comes next to it?
>>>>
>>>> usually each DCE (display compression engine) contains two hard
>>>> slice encoders.
>>>>
>>>> DSC_0 and DSC_1 (index) is belong to dsc_0.
>>>>
>>>> If there are two DCE, then DSC_2 and DSC_3 belong to dsc_1
>>>
>>> Ah, I see now. So, the block register space is the following:
>>> DCEi ->
>>> common
>>> dsc0_enc
>>> dsc1_enc
>>> dsc0_ctl
>>> dsc1_ctl
>>>
>>> Instead of declaring a single DCE unit with two DSC blocks, we
>>> declare two distinct DSC blocks. This raises a question, how
>>> independent are these two parts of a single DCE block? For example,
>>> can we use them to perform compression with different parameters? Or
>>> use one of them for the DP DSC and another one for DSI DSC? Can we
>>> have the following configuration:
>>>
>>> DSC_0 => DP DSC
>>> DSC_1, DSC_2 => DSI DSC in DSC_MERGE topology?
>>
>> no, For merge mode you have to use same DCE, such as DSC_2 and DSC3
>> (pair)
>
> Ok, this is for the merge mode. So the dpu_rm should be extended to
> allocate them in pairs if merge mode is requested.
>
> What about using DSC_0 for DP and DSC_1 for DSI? Is it possible?
I never do that, but i think it should works since they can work
independently.
>
>>
>>>
>>>>
>>>>>
>>>>>> + DSC_BLK_1_2("dsc_1", DSC_2, 0x81000, 0x100,
>>>>>> BIT(DPU_DSC_NATIVE_422_EN), sm8550_dsc_sblk_0),
>>>>>> + DSC_BLK_1_2("dsc_1", DSC_3, 0x81000, 0x100,
>>>>>> BIT(DPU_DSC_NATIVE_422_EN), sm8550_dsc_sblk_1),
>>>>>> +};
>>>>>> +
>>>>>> static const struct dpu_intf_cfg sm8550_intf[] = {
>>>>>> INTF_BLK("intf_0", INTF_0, 0x34000, 0x280, INTF_DP,
>>>>>> MSM_DP_CONTROLLER_0, 24, INTF_SC7280_MASK, MDP_SSPP_TOP0_INTR,
>>>>>> 24, 25),
>>>>>> /* TODO TE sub-blocks for intf1 & intf2 */
>>>>>> @@ -218,6 +235,8 @@ const struct dpu_mdss_cfg dpu_sm8550_cfg = {
>>>>>> .dspp = sm8550_dspp,
>>>>>> .pingpong_count = ARRAY_SIZE(sm8550_pp),
>>>>>> .pingpong = sm8550_pp,
>>>>>> + .dsc = sm8550_dsc,
>>>>>> + .dsc_count = ARRAY_SIZE(sm8550_dsc),
>>>>>> .merge_3d_count = ARRAY_SIZE(sm8550_merge_3d),
>>>>>> .merge_3d = sm8550_merge_3d,
>>>>>> .intf_count = ARRAY_SIZE(sm8550_intf),
>>>>>> 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 03f162a..be08158 100644
>>>>>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>>>>>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
>>>>>> @@ -1,6 +1,6 @@
>>>>>> // SPDX-License-Identifier: GPL-2.0-only
>>>>>> /* Copyright (c) 2015-2018, The Linux Foundation. All rights
>>>>>> reserved.
>>>>>> - * Copyright (c) 2022. Qualcomm Innovation Center, Inc. All
>>>>>> rights reserved.
>>>>>> + * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All
>>>>>> rights reserved.
>>>>>> */
>>>>>> #define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__
>>>>>> @@ -540,7 +540,15 @@ static const struct dpu_pingpong_sub_blks
>>>>>> sc7280_pp_sblk = {
>>>>>> {\
>>>>>> .name = _name, .id = _id, \
>>>>>> .base = _base, .len = 0x140, \
>>>>>> - .features = _features, \
>>>>>> + .features = BIT(DPU_DSC_HW_REV_1_1) | _features, \
>>>>>> + }
>>>>>> +
>>>>>> +#define DSC_BLK_1_2(_name, _id, _base, _len, _features, _sblk) \
>>>>>> + {\
>>>>>> + .name = _name, .id = _id, \
>>>>>> + .base = _base, .len = _len, \
>>>>>> + .features = BIT(DPU_DSC_HW_REV_1_2) | _features, \
>>>>>> + .sblk = &_sblk, \
>>>>>> }
>>>>>> /*************************************************************
>>>>>
>>>
>
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