[6/7] media: rkisp1: Implement extensible params support

Message ID 20240621145406.119088-7-jacopo.mondi@ideasonboard.com (mailing list archive)
State Superseded
Headers
Series media: rkisp1: Implement support for extensible parameters |

Commit Message

Jacopo Mondi June 21, 2024, 2:54 p.m. UTC
  Implement support in rkisp1-params for the extensible configuration
parameters format.

Create a list of handlers for each ISP block that wraps the existing
configuration functions and handles the ISP block enablement.

Parse the configuration parameters buffer in rkisp1_ext_params_config
and filter the enable blocks by group, to allow setting the 'other'
groups separately from the 'lsc' group to support the pre/post-configure
operations.

Implement the vb2 buf_out_validate() operation to validate the
extensible format buffer content at qbuf time.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
---
 .../platform/rockchip/rkisp1/rkisp1-common.h  |   3 +
 .../platform/rockchip/rkisp1/rkisp1-params.c  | 553 +++++++++++++++++-
 2 files changed, 540 insertions(+), 16 deletions(-)
  

Comments

Laurent Pinchart June 29, 2024, 2:36 p.m. UTC | #1
Hi Jacopo,

Thank you for the patch.

On Fri, Jun 21, 2024 at 04:54:04PM +0200, Jacopo Mondi wrote:
> Implement support in rkisp1-params for the extensible configuration
> parameters format.
> 
> Create a list of handlers for each ISP block that wraps the existing
> configuration functions and handles the ISP block enablement.
> 
> Parse the configuration parameters buffer in rkisp1_ext_params_config
> and filter the enable blocks by group, to allow setting the 'other'
> groups separately from the 'lsc' group to support the pre/post-configure
> operations.
> 
> Implement the vb2 buf_out_validate() operation to validate the
> extensible format buffer content at qbuf time.

Is there a particular reason to do so in .buf_out_validate() instead of
.buf_prepare() ?

> Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
> ---
>  .../platform/rockchip/rkisp1/rkisp1-common.h  |   3 +
>  .../platform/rockchip/rkisp1/rkisp1-params.c  | 553 +++++++++++++++++-
>  2 files changed, 540 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> index ccd2065351b4..bffd936f989a 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> @@ -390,6 +390,7 @@ struct rkisp1_params_ops {
>   * @quantization:	the quantization configured on the isp's src pad
>   * @ycbcr_encoding	the YCbCr encoding
>   * @raw_type:		the bayer pattern on the isp video sink pad
> + * @enabled_blocks:	bitmask of enabled ISP blocks
>   */
>  struct rkisp1_params {
>  	struct rkisp1_vdev_node vnode;
> @@ -404,6 +405,8 @@ struct rkisp1_params {
>  	enum v4l2_quantization quantization;
>  	enum v4l2_ycbcr_encoding ycbcr_encoding;
>  	enum rkisp1_fmt_raw_pat_type raw_type;
> +
> +	u32 enabled_blocks;
>  };
>  
>  /*
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> index e38d2da994f5..f3ea70c7e0c1 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> @@ -35,6 +35,9 @@
>  #define RKISP1_ISP_CC_COEFF(n) \
>  			(RKISP1_CIF_ISP_CC_COEFF_0 + (n) * 4)
>  
> +#define RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS	BIT(0)
> +#define RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC	BIT(1)
> +
>  enum rkisp1_params_formats {
>  	RKISP1_PARAMS_FIXED,
>  	RKISP1_PARAMS_EXTENSIBLE,
> @@ -1529,6 +1532,454 @@ rkisp1_params_get_buffer(struct rkisp1_params *params)
>  				queue);
>  }
>  
> +/*------------------------------------------------------------------------------
> + * Extensible parameters format handling
> + */
> +
> +static void rkisp1_ext_params_bls(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_bls_config *bls =
> +		(struct rkisp1_ext_params_bls_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
> +					RKISP1_CIF_ISP_BLS_ENA);
> +		return;
> +	}
> +
> +	rkisp1_bls_config(params, &bls->bls_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
> +				      RKISP1_CIF_ISP_BLS_ENA);
> +}
> +
> +static void rkisp1_ext_params_dpcc(struct rkisp1_params *params,
> +				   struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_dpcc_config *dpcc =
> +		(struct rkisp1_ext_params_dpcc_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
> +					RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
> +		return;
> +	}
> +
> +	rkisp1_dpcc_config(params, &dpcc->dpcc_config);
> +
> +	if (!(params->enabled_blocks &
> +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
> +				      RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
> +}
> +
> +static void rkisp1_ext_params_sdg(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_sdg_config *sdg =
> +		(struct rkisp1_ext_params_sdg_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> +					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
> +		return;
> +	}
> +
> +	rkisp1_sdg_config(params, &sdg->sdg_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> +				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
> +}
> +
> +static void rkisp1_ext_params_lsc(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_lsc_config *lsc =
> +		(struct rkisp1_ext_params_lsc_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
> +					RKISP1_CIF_ISP_LSC_CTRL_ENA);
> +		return;
> +	}
> +
> +	rkisp1_lsc_config(params, &lsc->lsc_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
> +				      RKISP1_CIF_ISP_LSC_CTRL_ENA);
> +}
> +
> +static void rkisp1_ext_params_awbg(struct rkisp1_params *params,
> +				   struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_awb_gain_config *awbg =
> +		(struct rkisp1_ext_params_awb_gain_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> +					RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
> +		return;
> +	}
> +
> +	params->ops->awb_gain_config(params, &awbg->awb_config);
> +
> +	if (!(params->enabled_blocks &
> +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> +				      RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
> +}
> +
> +static void rkisp1_ext_params_flt(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_flt_config *flt =
> +		(struct rkisp1_ext_params_flt_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_FILT_MODE,
> +					RKISP1_CIF_ISP_FLT_ENA);
> +		return;
> +	}
> +
> +	rkisp1_flt_config(params, &flt->flt_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_FILT_MODE,
> +				      RKISP1_CIF_ISP_FLT_ENA);
> +}
> +
> +static void rkisp1_ext_params_bdm(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_bdm_config *bdm =
> +		(struct rkisp1_ext_params_bdm_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
> +					RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
> +		return;
> +	}
> +
> +	rkisp1_bdm_config(params, &bdm->bdm_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
> +				      RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
> +}
> +
> +static void rkisp1_ext_params_ctk(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_ctk_config *ctk =
> +		(struct rkisp1_ext_params_ctk_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_ctk_enable(params, false);
> +		return;
> +	}
> +
> +	rkisp1_ctk_config(params, &ctk->ctk_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK)))
> +		rkisp1_ctk_enable(params, true);
> +}
> +
> +static void rkisp1_ext_params_goc(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_goc_config *goc =
> +		(struct rkisp1_ext_params_goc_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> +					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
> +		return;
> +	}
> +
> +	params->ops->goc_config(params, &goc->goc_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> +				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
> +}
> +
> +static void rkisp1_ext_params_dpf(struct rkisp1_params *params,
> +				  struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_dpf_config *dpf =
> +		(struct rkisp1_ext_params_dpf_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPF_MODE,
> +					RKISP1_CIF_ISP_DPF_MODE_EN);
> +		return;
> +	}
> +
> +	rkisp1_dpf_config(params, &dpf->dpf_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPF_MODE,
> +				      RKISP1_CIF_ISP_DPF_MODE_EN);
> +}
> +
> +static void rkisp1_ext_params_dpfs(struct rkisp1_params *params,
> +				   struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_dpf_strength_config *dpfs =
> +		(struct rkisp1_ext_params_dpf_strength_config *)hdr;
> +
> +	rkisp1_dpf_strength_config(params, &dpfs->dpf_strength_config);
> +}
> +
> +static void rkisp1_ext_params_cproc(struct rkisp1_params *params,
> +				    struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_cproc_config *cproc =
> +		(struct rkisp1_ext_params_cproc_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_C_PROC_CTRL,
> +					RKISP1_CIF_C_PROC_CTR_ENABLE);
> +		return;
> +	}
> +
> +	rkisp1_cproc_config(params, &cproc->cproc_config);
> +
> +	if (!(params->enabled_blocks &
> +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_C_PROC_CTRL,
> +				      RKISP1_CIF_C_PROC_CTR_ENABLE);
> +}
> +
> +static void rkisp1_ext_params_ie(struct rkisp1_params *params,
> +				 struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_ie_config *ie =
> +		(struct rkisp1_ext_params_ie_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_ie_enable(params, false);
> +		return;
> +	}
> +
> +	rkisp1_ie_config(params, &ie->ie_config);
> +
> +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_IE)))
> +		rkisp1_ie_enable(params, true);
> +}
> +
> +static void rkisp1_ext_params_awbm(struct rkisp1_params *params,
> +				   struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_awb_meas_config *awbm =
> +		(struct rkisp1_ext_params_awb_meas_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
> +					     false);
> +		return;
> +	}
> +
> +	params->ops->awb_meas_config(params, &awbm->awb_meas_config);
> +
> +	if (!(params->enabled_blocks &
> +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS)))
> +		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
> +					     true);
> +}
> +
> +static void rkisp1_ext_params_hstm(struct rkisp1_params *params,
> +				   struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_hst_config *hst =
> +		(struct rkisp1_ext_params_hst_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		params->ops->hst_enable(params, &hst->hst_config, false);
> +		return;
> +	}
> +
> +	params->ops->hst_config(params, &hst->hst_config);
> +
> +	if (!(params->enabled_blocks &
> +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS)))
> +		params->ops->hst_enable(params, &hst->hst_config, true);
> +}
> +
> +static void rkisp1_ext_params_aecm(struct rkisp1_params *params,
> +				   struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_aec_config *aec =
> +		(struct rkisp1_ext_params_aec_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
> +					RKISP1_CIF_ISP_EXP_ENA);
> +		return;
> +	}
> +
> +	params->ops->aec_config(params, &aec->aec_config);
> +
> +	if (!(params->enabled_blocks &
> +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
> +				      RKISP1_CIF_ISP_EXP_ENA);
> +}
> +
> +static void rkisp1_ext_params_afcm(struct rkisp1_params *params,
> +				   struct rkisp1_ext_params_block_header *hdr)
> +{
> +	struct rkisp1_ext_params_afc_config *afc =
> +		(struct rkisp1_ext_params_afc_config *)hdr;
> +
> +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
> +					RKISP1_CIF_ISP_AFM_ENA);
> +		return;
> +	}
> +
> +	params->ops->afm_config(params, &afc->afc_config);
> +
> +	if (!(params->enabled_blocks &
> +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS)))
> +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
> +				      RKISP1_CIF_ISP_AFM_ENA);
> +}

I still think we could get rid of most of these functions by adding
.enable(), .configure() and .disable() operations to
rkisp1_ext_params_handler. That can be done later.

> +
> +typedef void (*rkisp1_block_handler)(struct rkisp1_params *params,
> +				     struct rkisp1_ext_params_block_header *hdr);

If it doesn't cause any issue, I'd make the hdr const.

> +
> +static const struct rkisp1_ext_params_handler {
> +	size_t size;
> +	rkisp1_block_handler handler;
> +	unsigned int group;
> +} rkisp1_ext_params_handlers[] = {
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS] = {
> +		.size		= sizeof(struct rkisp1_ext_params_bls_config),
> +		.handler	= rkisp1_ext_params_bls,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC] = {
> +		.size		= sizeof(struct rkisp1_ext_params_dpcc_config),
> +		.handler	= rkisp1_ext_params_dpcc,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG] = {
> +		.size		= sizeof(struct rkisp1_ext_params_sdg_config),
> +		.handler	= rkisp1_ext_params_sdg,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS] = {
> +		.size		=
> +			sizeof(struct rkisp1_ext_params_awb_gain_config),
> +		.handler	= rkisp1_ext_params_awbg,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT] = {
> +		.size		= sizeof(struct rkisp1_ext_params_flt_config),
> +		.handler	= rkisp1_ext_params_flt,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM] = {
> +		.size		= sizeof(struct rkisp1_ext_params_bdm_config),
> +		.handler	= rkisp1_ext_params_bdm,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK] = {
> +		.size		= sizeof(struct rkisp1_ext_params_ctk_config),
> +		.handler	= rkisp1_ext_params_ctk,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC] = {
> +		.size		= sizeof(struct rkisp1_ext_params_goc_config),
> +		.handler	= rkisp1_ext_params_goc,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF] = {
> +		.size		= sizeof(struct rkisp1_ext_params_dpf_config),
> +		.handler	= rkisp1_ext_params_dpf,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGTH] = {
> +		.size		=
> +			sizeof(struct rkisp1_ext_params_dpf_strength_config),
> +		.handler	= rkisp1_ext_params_dpfs,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC] = {
> +		.size		= sizeof(struct rkisp1_ext_params_cproc_config),
> +		.handler	= rkisp1_ext_params_cproc,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_IE] = {
> +		.size		= sizeof(struct rkisp1_ext_params_ie_config),
> +		.handler	= rkisp1_ext_params_ie,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC] = {
> +		.size		= sizeof(struct rkisp1_ext_params_lsc_config),
> +		.handler	= rkisp1_ext_params_lsc,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS] = {
> +		.size		=
> +			sizeof(struct rkisp1_ext_params_awb_meas_config),
> +		.handler	= rkisp1_ext_params_awbm,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS] = {
> +		.size		= sizeof(struct rkisp1_ext_params_hst_config),
> +		.handler	= rkisp1_ext_params_hstm,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS] = {
> +		.size		= sizeof(struct rkisp1_ext_params_aec_config),
> +		.handler	= rkisp1_ext_params_aecm,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS] = {
> +		.size		= sizeof(struct rkisp1_ext_params_afc_config),
> +		.handler	= rkisp1_ext_params_afcm,
> +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> +	},
> +};
> +
> +static void rkisp1_ext_params_config(struct rkisp1_params *params,
> +				     struct rkisp1_ext_params_cfg *cfg,
> +				     u32 block_group_mask)
> +{
> +	size_t block_offset = 0;
> +
> +	if (WARN_ON(!cfg))
> +		return;
> +
> +	/* Walk the list of parameter blocks and process them. */
> +	while (block_offset < cfg->total_size) {
> +		const struct rkisp1_ext_params_handler *block_handler;
> +		struct rkisp1_ext_params_block_header *block;

const

> +
> +		block = (struct rkisp1_ext_params_block_header *)
> +			&cfg->data[block_offset];
> +		block_offset += block->size;
> +
> +		/* Make sure the block is in the list of groups to configure. */
> +		block_handler = &rkisp1_ext_params_handlers[block->type];
> +		if (!(block_handler->group & block_group_mask))
> +			continue;
> +
> +		block_handler->handler(params, block);
> +
> +		if (block->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE)
> +			params->enabled_blocks &= ~BIT(block->type);
> +		else
> +			params->enabled_blocks |= BIT(block->type);
> +	}
> +}
> +
>  static void rkisp1_params_complete_buffer(struct rkisp1_params *params,
>  					  struct rkisp1_params_buffer *buf,
>  					  unsigned int frame_sequence)
> @@ -1550,9 +2001,15 @@ void rkisp1_params_isr(struct rkisp1_device *rkisp1)
>  	if (!cur_buf)
>  		goto unlock;
>  
> -	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> -	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> -	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
> +		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> +		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> +		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> +	} else {
> +		rkisp1_ext_params_config(params, cur_buf->cfg,
> +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS |
> +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
> +	}
>  
>  	/* update shadow register immediately */
>  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> @@ -1651,8 +2108,13 @@ void rkisp1_params_pre_configure(struct rkisp1_params *params,
>  	if (!cur_buf)
>  		goto unlock;
>  
> -	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> -	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
> +		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> +		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> +	} else {
> +		rkisp1_ext_params_config(params, cur_buf->cfg,
> +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS);
> +	}
>  
>  	/* update shadow register immediately */
>  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> @@ -1680,7 +2142,11 @@ void rkisp1_params_post_configure(struct rkisp1_params *params)
>  	if (!cur_buf)
>  		goto unlock;
>  
> -	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
> +		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> +	else
> +		rkisp1_ext_params_config(params, cur_buf->cfg,
> +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
>  
>  	/* update shadow register immediately */
>  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> @@ -1874,10 +2340,6 @@ static void rkisp1_params_vb2_buf_queue(struct vb2_buffer *vb)
>  
>  static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
>  {
> -	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> -	struct rkisp1_params_buffer *params_buf =
> -		container_of(vbuf, struct rkisp1_params_buffer, vb);
> -	void *cfg = vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
>  	struct rkisp1_params *params = vb->vb2_queue->drv_priv;
>  
>  	if (vb2_plane_size(vb, 0) < params->metafmt->buffersize)
> @@ -1885,12 +2347,6 @@ static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
>  
>  	vb2_set_plane_payload(vb, 0, params->metafmt->buffersize);
>  
> -	/*
> -	 * Copy the parameters buffer to the internal scratch buffer to avoid
> -	 * userspace modifying the buffer content while the driver processes it.
> -	 */
> -	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
> -
>  	return 0;
>  }
>  
> @@ -1911,12 +2367,77 @@ static void rkisp1_params_vb2_stop_streaming(struct vb2_queue *vq)
>  
>  	list_for_each_entry(buf, &tmp_list, queue)
>  		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
> +
> +	params->enabled_blocks = 0;
> +}
> +
> +static int rkisp1_params_validate_ext_params(struct rkisp1_params *params,
> +					     struct rkisp1_ext_params_cfg *cfg)
> +{
> +	size_t block_offset = 0;
> +
> +	if (cfg->total_size > RKISP1_EXT_PARAMS_MAX_SIZE) {
> +		dev_dbg(params->rkisp1->dev,
> +			"Invalid parameters buffer size %u\n",
> +			cfg->total_size);
> +		return -EINVAL;
> +	}

Following my review comments on patch 5/7, you should also validate that
offsetof(struct rkisp1_ext_params_cfg, data) + cfg->total_size >= plane payload.

> +
> +	/* Walk the list of parameter blocks and validate them. */
> +	while (block_offset < cfg->total_size) {

	while (cfg->total_size - block_offset >=
	       sizeof(struct rkisp1_ext_params_block_header)) {

Otherwise there could be just one byte left, and dereferencing block
below would read uninitialized memory.

> +		const struct rkisp1_ext_params_handler *hdlr;

Maybe handler, it's not much longer, and is more readable.

> +		struct rkisp1_ext_params_block_header *block;

const

> +
> +		block = (struct rkisp1_ext_params_block_header *)
> +			&cfg->data[block_offset];
> +
> +		if (block->type >= RKISP1_EXT_PARAMS_BLOCK_TYPE_SENTINEL) {

		if (block->type >= ARRAY_SIZE(rkisp1_ext_params_handlers)) {

which allows you to drop RKISP1_EXT_PARAMS_BLOCK_TYPE_SENTINEL from the
UAPI header.

> +			dev_dbg(params->rkisp1->dev,
> +				"Invalid parameters block type\n");
> +			return -EINVAL;
> +		}
> +
> +		hdlr = &rkisp1_ext_params_handlers[block->type];
> +		if (block->size != hdlr->size) {
> +			dev_dbg(params->rkisp1->dev,
> +				"Invalid parameters block size\n");
> +			return -EINVAL;
> +		}

You need to test here that block->size >= cfg->total_size -
block_offset. It may be easier to add a new local variable at the top of
the function

	size_t remaining_size = cfg->total_size;

The loop would then become

	while (remaining_size >= sizeof(struct rkisp1_ext_params_block_header)) {
		const struct rkisp1_ext_params_block_header *block;
		const struct rkisp1_ext_params_handler *handler;

		block = (struct rkisp1_ext_params_block_header *)
			&cfg->data[block_offset];

		if (block->type >= ARRAY_SIZE(rkisp1_ext_params_handlers)) {
			dev_dbg(params->rkisp1->dev,
				"Invalid parameters block type\n");
			return -EINVAL;
		}

		if (block->size > remaining_size) {
			dev_dbg(params->rkisp1->dev,
				"Premature end of parameters data\n");
			return -EINVAL;
		}

		handler = &rkisp1_ext_params_handlers[block->type];
		if (block->size != handler->size) {
			dev_dbg(params->rkisp1->dev,
				"Invalid parameters block size\n");
			return -EINVAL;
		}

		block_offset += block->size;
		reamining_size -= block->size;
	}

> +
> +		block_offset += block->size;
> +	}
> +
> +	return 0;
> +}
> +
> +static int rkisp1_params_vb2_buf_out_validate(struct vb2_buffer *vb)
> +{
> +	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> +	struct rkisp1_params_buffer *params_buf =
> +		container_of(vbuf, struct rkisp1_params_buffer, vb);
> +	struct vb2_queue *vq = vb->vb2_queue;
> +	struct rkisp1_params *params = vq->drv_priv;
> +	struct rkisp1_ext_params_cfg *cfg =
> +		vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
> +
> +	/*
> +	 * Copy the parameters buffer to the internal scratch buffer to avoid
> +	 * userspace modifying the buffer content while the driver processes it.
> +	 */
> +	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
> +
> +	/* Fixed parameters format doesn't require validation. */
> +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
> +		return 0;
> +
> +	return rkisp1_params_validate_ext_params(params, cfg);
>  }
>  
>  static const struct vb2_ops rkisp1_params_vb2_ops = {
>  	.queue_setup = rkisp1_params_vb2_queue_setup,
>  	.buf_init = rkisp1_params_vb2_buf_init,
>  	.buf_cleanup = rkisp1_params_vb2_buf_cleanup,
> +	.buf_out_validate = rkisp1_params_vb2_buf_out_validate,
>  	.wait_prepare = vb2_ops_wait_prepare,
>  	.wait_finish = vb2_ops_wait_finish,
>  	.buf_queue = rkisp1_params_vb2_buf_queue,
  
Jacopo Mondi July 1, 2024, 10:43 a.m. UTC | #2
Hi Laurent

On Sat, Jun 29, 2024 at 05:36:07PM GMT, Laurent Pinchart wrote:
> Hi Jacopo,
>
> Thank you for the patch.
>
> On Fri, Jun 21, 2024 at 04:54:04PM +0200, Jacopo Mondi wrote:
> > Implement support in rkisp1-params for the extensible configuration
> > parameters format.
> >
> > Create a list of handlers for each ISP block that wraps the existing
> > configuration functions and handles the ISP block enablement.
> >
> > Parse the configuration parameters buffer in rkisp1_ext_params_config
> > and filter the enable blocks by group, to allow setting the 'other'
> > groups separately from the 'lsc' group to support the pre/post-configure
> > operations.
> >
> > Implement the vb2 buf_out_validate() operation to validate the
> > extensible format buffer content at qbuf time.
>
> Is there a particular reason to do so in .buf_out_validate() instead of
> .buf_prepare() ?
>

It felt like it's the right place where to perform validation

 * @buf_out_validate:	called when the output buffer is prepared or queued
 *			to a request; drivers can use this to validate
 *			userspace-provided information; this is required only
 *			for OUTPUT queues.

out buffers are validated -before- buf_prepare() is called. I admit it
might have no practical differences though. Would you prefer to
collapse everything into _prepare ? If I drop

	vb2_set_plane_payload(vb, 0, params->metafmt->buffersize);

Not much will remain in _prepare() and I could even drop it.

> > Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
> > ---
> >  .../platform/rockchip/rkisp1/rkisp1-common.h  |   3 +
> >  .../platform/rockchip/rkisp1/rkisp1-params.c  | 553 +++++++++++++++++-
> >  2 files changed, 540 insertions(+), 16 deletions(-)
> >
> > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> > index ccd2065351b4..bffd936f989a 100644
> > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> > @@ -390,6 +390,7 @@ struct rkisp1_params_ops {
> >   * @quantization:	the quantization configured on the isp's src pad
> >   * @ycbcr_encoding	the YCbCr encoding
> >   * @raw_type:		the bayer pattern on the isp video sink pad
> > + * @enabled_blocks:	bitmask of enabled ISP blocks
> >   */
> >  struct rkisp1_params {
> >  	struct rkisp1_vdev_node vnode;
> > @@ -404,6 +405,8 @@ struct rkisp1_params {
> >  	enum v4l2_quantization quantization;
> >  	enum v4l2_ycbcr_encoding ycbcr_encoding;
> >  	enum rkisp1_fmt_raw_pat_type raw_type;
> > +
> > +	u32 enabled_blocks;
> >  };
> >
> >  /*
> > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> > index e38d2da994f5..f3ea70c7e0c1 100644
> > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> > @@ -35,6 +35,9 @@
> >  #define RKISP1_ISP_CC_COEFF(n) \
> >  			(RKISP1_CIF_ISP_CC_COEFF_0 + (n) * 4)
> >
> > +#define RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS	BIT(0)
> > +#define RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC	BIT(1)
> > +
> >  enum rkisp1_params_formats {
> >  	RKISP1_PARAMS_FIXED,
> >  	RKISP1_PARAMS_EXTENSIBLE,
> > @@ -1529,6 +1532,454 @@ rkisp1_params_get_buffer(struct rkisp1_params *params)
> >  				queue);
> >  }
> >
> > +/*------------------------------------------------------------------------------
> > + * Extensible parameters format handling
> > + */
> > +
> > +static void rkisp1_ext_params_bls(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_bls_config *bls =
> > +		(struct rkisp1_ext_params_bls_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
> > +					RKISP1_CIF_ISP_BLS_ENA);
> > +		return;
> > +	}
> > +
> > +	rkisp1_bls_config(params, &bls->bls_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
> > +				      RKISP1_CIF_ISP_BLS_ENA);
> > +}
> > +
> > +static void rkisp1_ext_params_dpcc(struct rkisp1_params *params,
> > +				   struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_dpcc_config *dpcc =
> > +		(struct rkisp1_ext_params_dpcc_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
> > +					RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
> > +		return;
> > +	}
> > +
> > +	rkisp1_dpcc_config(params, &dpcc->dpcc_config);
> > +
> > +	if (!(params->enabled_blocks &
> > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
> > +				      RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
> > +}
> > +
> > +static void rkisp1_ext_params_sdg(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_sdg_config *sdg =
> > +		(struct rkisp1_ext_params_sdg_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> > +					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
> > +		return;
> > +	}
> > +
> > +	rkisp1_sdg_config(params, &sdg->sdg_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > +				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
> > +}
> > +
> > +static void rkisp1_ext_params_lsc(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_lsc_config *lsc =
> > +		(struct rkisp1_ext_params_lsc_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
> > +					RKISP1_CIF_ISP_LSC_CTRL_ENA);
> > +		return;
> > +	}
> > +
> > +	rkisp1_lsc_config(params, &lsc->lsc_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
> > +				      RKISP1_CIF_ISP_LSC_CTRL_ENA);
> > +}
> > +
> > +static void rkisp1_ext_params_awbg(struct rkisp1_params *params,
> > +				   struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_awb_gain_config *awbg =
> > +		(struct rkisp1_ext_params_awb_gain_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> > +					RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
> > +		return;
> > +	}
> > +
> > +	params->ops->awb_gain_config(params, &awbg->awb_config);
> > +
> > +	if (!(params->enabled_blocks &
> > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > +				      RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
> > +}
> > +
> > +static void rkisp1_ext_params_flt(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_flt_config *flt =
> > +		(struct rkisp1_ext_params_flt_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_FILT_MODE,
> > +					RKISP1_CIF_ISP_FLT_ENA);
> > +		return;
> > +	}
> > +
> > +	rkisp1_flt_config(params, &flt->flt_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_FILT_MODE,
> > +				      RKISP1_CIF_ISP_FLT_ENA);
> > +}
> > +
> > +static void rkisp1_ext_params_bdm(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_bdm_config *bdm =
> > +		(struct rkisp1_ext_params_bdm_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
> > +					RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
> > +		return;
> > +	}
> > +
> > +	rkisp1_bdm_config(params, &bdm->bdm_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
> > +				      RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
> > +}
> > +
> > +static void rkisp1_ext_params_ctk(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_ctk_config *ctk =
> > +		(struct rkisp1_ext_params_ctk_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_ctk_enable(params, false);
> > +		return;
> > +	}
> > +
> > +	rkisp1_ctk_config(params, &ctk->ctk_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK)))
> > +		rkisp1_ctk_enable(params, true);
> > +}
> > +
> > +static void rkisp1_ext_params_goc(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_goc_config *goc =
> > +		(struct rkisp1_ext_params_goc_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> > +					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
> > +		return;
> > +	}
> > +
> > +	params->ops->goc_config(params, &goc->goc_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > +				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
> > +}
> > +
> > +static void rkisp1_ext_params_dpf(struct rkisp1_params *params,
> > +				  struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_dpf_config *dpf =
> > +		(struct rkisp1_ext_params_dpf_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPF_MODE,
> > +					RKISP1_CIF_ISP_DPF_MODE_EN);
> > +		return;
> > +	}
> > +
> > +	rkisp1_dpf_config(params, &dpf->dpf_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPF_MODE,
> > +				      RKISP1_CIF_ISP_DPF_MODE_EN);
> > +}
> > +
> > +static void rkisp1_ext_params_dpfs(struct rkisp1_params *params,
> > +				   struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_dpf_strength_config *dpfs =
> > +		(struct rkisp1_ext_params_dpf_strength_config *)hdr;
> > +
> > +	rkisp1_dpf_strength_config(params, &dpfs->dpf_strength_config);
> > +}
> > +
> > +static void rkisp1_ext_params_cproc(struct rkisp1_params *params,
> > +				    struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_cproc_config *cproc =
> > +		(struct rkisp1_ext_params_cproc_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_C_PROC_CTRL,
> > +					RKISP1_CIF_C_PROC_CTR_ENABLE);
> > +		return;
> > +	}
> > +
> > +	rkisp1_cproc_config(params, &cproc->cproc_config);
> > +
> > +	if (!(params->enabled_blocks &
> > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_C_PROC_CTRL,
> > +				      RKISP1_CIF_C_PROC_CTR_ENABLE);
> > +}
> > +
> > +static void rkisp1_ext_params_ie(struct rkisp1_params *params,
> > +				 struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_ie_config *ie =
> > +		(struct rkisp1_ext_params_ie_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_ie_enable(params, false);
> > +		return;
> > +	}
> > +
> > +	rkisp1_ie_config(params, &ie->ie_config);
> > +
> > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_IE)))
> > +		rkisp1_ie_enable(params, true);
> > +}
> > +
> > +static void rkisp1_ext_params_awbm(struct rkisp1_params *params,
> > +				   struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_awb_meas_config *awbm =
> > +		(struct rkisp1_ext_params_awb_meas_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
> > +					     false);
> > +		return;
> > +	}
> > +
> > +	params->ops->awb_meas_config(params, &awbm->awb_meas_config);
> > +
> > +	if (!(params->enabled_blocks &
> > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS)))
> > +		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
> > +					     true);
> > +}
> > +
> > +static void rkisp1_ext_params_hstm(struct rkisp1_params *params,
> > +				   struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_hst_config *hst =
> > +		(struct rkisp1_ext_params_hst_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		params->ops->hst_enable(params, &hst->hst_config, false);
> > +		return;
> > +	}
> > +
> > +	params->ops->hst_config(params, &hst->hst_config);
> > +
> > +	if (!(params->enabled_blocks &
> > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS)))
> > +		params->ops->hst_enable(params, &hst->hst_config, true);
> > +}
> > +
> > +static void rkisp1_ext_params_aecm(struct rkisp1_params *params,
> > +				   struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_aec_config *aec =
> > +		(struct rkisp1_ext_params_aec_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
> > +					RKISP1_CIF_ISP_EXP_ENA);
> > +		return;
> > +	}
> > +
> > +	params->ops->aec_config(params, &aec->aec_config);
> > +
> > +	if (!(params->enabled_blocks &
> > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
> > +				      RKISP1_CIF_ISP_EXP_ENA);
> > +}
> > +
> > +static void rkisp1_ext_params_afcm(struct rkisp1_params *params,
> > +				   struct rkisp1_ext_params_block_header *hdr)
> > +{
> > +	struct rkisp1_ext_params_afc_config *afc =
> > +		(struct rkisp1_ext_params_afc_config *)hdr;
> > +
> > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
> > +					RKISP1_CIF_ISP_AFM_ENA);
> > +		return;
> > +	}
> > +
> > +	params->ops->afm_config(params, &afc->afc_config);
> > +
> > +	if (!(params->enabled_blocks &
> > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS)))
> > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
> > +				      RKISP1_CIF_ISP_AFM_ENA);
> > +}
>
> I still think we could get rid of most of these functions by adding
> .enable(), .configure() and .disable() operations to
> rkisp1_ext_params_handler. That can be done later.
>
> > +
> > +typedef void (*rkisp1_block_handler)(struct rkisp1_params *params,
> > +				     struct rkisp1_ext_params_block_header *hdr);
>
> If it doesn't cause any issue, I'd make the hdr const.
>
> > +
> > +static const struct rkisp1_ext_params_handler {
> > +	size_t size;
> > +	rkisp1_block_handler handler;
> > +	unsigned int group;
> > +} rkisp1_ext_params_handlers[] = {
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_bls_config),
> > +		.handler	= rkisp1_ext_params_bls,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_dpcc_config),
> > +		.handler	= rkisp1_ext_params_dpcc,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_sdg_config),
> > +		.handler	= rkisp1_ext_params_sdg,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS] = {
> > +		.size		=
> > +			sizeof(struct rkisp1_ext_params_awb_gain_config),
> > +		.handler	= rkisp1_ext_params_awbg,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_flt_config),
> > +		.handler	= rkisp1_ext_params_flt,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_bdm_config),
> > +		.handler	= rkisp1_ext_params_bdm,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_ctk_config),
> > +		.handler	= rkisp1_ext_params_ctk,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_goc_config),
> > +		.handler	= rkisp1_ext_params_goc,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_dpf_config),
> > +		.handler	= rkisp1_ext_params_dpf,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGTH] = {
> > +		.size		=
> > +			sizeof(struct rkisp1_ext_params_dpf_strength_config),
> > +		.handler	= rkisp1_ext_params_dpfs,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_cproc_config),
> > +		.handler	= rkisp1_ext_params_cproc,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_IE] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_ie_config),
> > +		.handler	= rkisp1_ext_params_ie,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_lsc_config),
> > +		.handler	= rkisp1_ext_params_lsc,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS] = {
> > +		.size		=
> > +			sizeof(struct rkisp1_ext_params_awb_meas_config),
> > +		.handler	= rkisp1_ext_params_awbm,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_hst_config),
> > +		.handler	= rkisp1_ext_params_hstm,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_aec_config),
> > +		.handler	= rkisp1_ext_params_aecm,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS] = {
> > +		.size		= sizeof(struct rkisp1_ext_params_afc_config),
> > +		.handler	= rkisp1_ext_params_afcm,
> > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > +	},
> > +};
> > +
> > +static void rkisp1_ext_params_config(struct rkisp1_params *params,
> > +				     struct rkisp1_ext_params_cfg *cfg,
> > +				     u32 block_group_mask)
> > +{
> > +	size_t block_offset = 0;
> > +
> > +	if (WARN_ON(!cfg))
> > +		return;
> > +
> > +	/* Walk the list of parameter blocks and process them. */
> > +	while (block_offset < cfg->total_size) {
> > +		const struct rkisp1_ext_params_handler *block_handler;
> > +		struct rkisp1_ext_params_block_header *block;
>
> const
>
> > +
> > +		block = (struct rkisp1_ext_params_block_header *)
> > +			&cfg->data[block_offset];
> > +		block_offset += block->size;
> > +
> > +		/* Make sure the block is in the list of groups to configure. */
> > +		block_handler = &rkisp1_ext_params_handlers[block->type];
> > +		if (!(block_handler->group & block_group_mask))
> > +			continue;
> > +
> > +		block_handler->handler(params, block);
> > +
> > +		if (block->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE)
> > +			params->enabled_blocks &= ~BIT(block->type);
> > +		else
> > +			params->enabled_blocks |= BIT(block->type);
> > +	}
> > +}
> > +
> >  static void rkisp1_params_complete_buffer(struct rkisp1_params *params,
> >  					  struct rkisp1_params_buffer *buf,
> >  					  unsigned int frame_sequence)
> > @@ -1550,9 +2001,15 @@ void rkisp1_params_isr(struct rkisp1_device *rkisp1)
> >  	if (!cur_buf)
> >  		goto unlock;
> >
> > -	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > -	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > -	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
> > +		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > +		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > +		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > +	} else {
> > +		rkisp1_ext_params_config(params, cur_buf->cfg,
> > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS |
> > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
> > +	}
> >
> >  	/* update shadow register immediately */
> >  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > @@ -1651,8 +2108,13 @@ void rkisp1_params_pre_configure(struct rkisp1_params *params,
> >  	if (!cur_buf)
> >  		goto unlock;
> >
> > -	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > -	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
> > +		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > +		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > +	} else {
> > +		rkisp1_ext_params_config(params, cur_buf->cfg,
> > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS);
> > +	}
> >
> >  	/* update shadow register immediately */
> >  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > @@ -1680,7 +2142,11 @@ void rkisp1_params_post_configure(struct rkisp1_params *params)
> >  	if (!cur_buf)
> >  		goto unlock;
> >
> > -	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
> > +		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > +	else
> > +		rkisp1_ext_params_config(params, cur_buf->cfg,
> > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
> >
> >  	/* update shadow register immediately */
> >  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > @@ -1874,10 +2340,6 @@ static void rkisp1_params_vb2_buf_queue(struct vb2_buffer *vb)
> >
> >  static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
> >  {
> > -	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> > -	struct rkisp1_params_buffer *params_buf =
> > -		container_of(vbuf, struct rkisp1_params_buffer, vb);
> > -	void *cfg = vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
> >  	struct rkisp1_params *params = vb->vb2_queue->drv_priv;
> >
> >  	if (vb2_plane_size(vb, 0) < params->metafmt->buffersize)
> > @@ -1885,12 +2347,6 @@ static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
> >
> >  	vb2_set_plane_payload(vb, 0, params->metafmt->buffersize);
> >
> > -	/*
> > -	 * Copy the parameters buffer to the internal scratch buffer to avoid
> > -	 * userspace modifying the buffer content while the driver processes it.
> > -	 */
> > -	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
> > -
> >  	return 0;
> >  }
> >
> > @@ -1911,12 +2367,77 @@ static void rkisp1_params_vb2_stop_streaming(struct vb2_queue *vq)
> >
> >  	list_for_each_entry(buf, &tmp_list, queue)
> >  		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
> > +
> > +	params->enabled_blocks = 0;
> > +}
> > +
> > +static int rkisp1_params_validate_ext_params(struct rkisp1_params *params,
> > +					     struct rkisp1_ext_params_cfg *cfg)
> > +{
> > +	size_t block_offset = 0;
> > +
> > +	if (cfg->total_size > RKISP1_EXT_PARAMS_MAX_SIZE) {
> > +		dev_dbg(params->rkisp1->dev,
> > +			"Invalid parameters buffer size %u\n",
> > +			cfg->total_size);
> > +		return -EINVAL;
> > +	}
>
> Following my review comments on patch 5/7, you should also validate that
> offsetof(struct rkisp1_ext_params_cfg, data) + cfg->total_size >= plane payload.
>
> > +
> > +	/* Walk the list of parameter blocks and validate them. */
> > +	while (block_offset < cfg->total_size) {
>
> 	while (cfg->total_size - block_offset >=
> 	       sizeof(struct rkisp1_ext_params_block_header)) {
>
> Otherwise there could be just one byte left, and dereferencing block
> below would read uninitialized memory.
>
> > +		const struct rkisp1_ext_params_handler *hdlr;
>
> Maybe handler, it's not much longer, and is more readable.
>
> > +		struct rkisp1_ext_params_block_header *block;
>
> const
>
> > +
> > +		block = (struct rkisp1_ext_params_block_header *)
> > +			&cfg->data[block_offset];
> > +
> > +		if (block->type >= RKISP1_EXT_PARAMS_BLOCK_TYPE_SENTINEL) {
>
> 		if (block->type >= ARRAY_SIZE(rkisp1_ext_params_handlers)) {
>
> which allows you to drop RKISP1_EXT_PARAMS_BLOCK_TYPE_SENTINEL from the
> UAPI header.
>
> > +			dev_dbg(params->rkisp1->dev,
> > +				"Invalid parameters block type\n");
> > +			return -EINVAL;
> > +		}
> > +
> > +		hdlr = &rkisp1_ext_params_handlers[block->type];
> > +		if (block->size != hdlr->size) {
> > +			dev_dbg(params->rkisp1->dev,
> > +				"Invalid parameters block size\n");
> > +			return -EINVAL;
> > +		}
>
> You need to test here that block->size >= cfg->total_size -
> block_offset. It may be easier to add a new local variable at the top of
> the function
>
> 	size_t remaining_size = cfg->total_size;
>
> The loop would then become
>
> 	while (remaining_size >= sizeof(struct rkisp1_ext_params_block_header)) {
> 		const struct rkisp1_ext_params_block_header *block;
> 		const struct rkisp1_ext_params_handler *handler;
>
> 		block = (struct rkisp1_ext_params_block_header *)
> 			&cfg->data[block_offset];
>
> 		if (block->type >= ARRAY_SIZE(rkisp1_ext_params_handlers)) {
> 			dev_dbg(params->rkisp1->dev,
> 				"Invalid parameters block type\n");
> 			return -EINVAL;
> 		}
>
> 		if (block->size > remaining_size) {
> 			dev_dbg(params->rkisp1->dev,
> 				"Premature end of parameters data\n");
> 			return -EINVAL;
> 		}
>
> 		handler = &rkisp1_ext_params_handlers[block->type];
> 		if (block->size != handler->size) {
> 			dev_dbg(params->rkisp1->dev,
> 				"Invalid parameters block size\n");
> 			return -EINVAL;
> 		}
>
> 		block_offset += block->size;
> 		reamining_size -= block->size;
> 	}
>
> > +
> > +		block_offset += block->size;
> > +	}
> > +
> > +	return 0;
> > +}
> > +
> > +static int rkisp1_params_vb2_buf_out_validate(struct vb2_buffer *vb)
> > +{
> > +	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> > +	struct rkisp1_params_buffer *params_buf =
> > +		container_of(vbuf, struct rkisp1_params_buffer, vb);
> > +	struct vb2_queue *vq = vb->vb2_queue;
> > +	struct rkisp1_params *params = vq->drv_priv;
> > +	struct rkisp1_ext_params_cfg *cfg =
> > +		vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
> > +
> > +	/*
> > +	 * Copy the parameters buffer to the internal scratch buffer to avoid
> > +	 * userspace modifying the buffer content while the driver processes it.
> > +	 */
> > +	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
> > +
> > +	/* Fixed parameters format doesn't require validation. */
> > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
> > +		return 0;
> > +
> > +	return rkisp1_params_validate_ext_params(params, cfg);
> >  }
> >
> >  static const struct vb2_ops rkisp1_params_vb2_ops = {
> >  	.queue_setup = rkisp1_params_vb2_queue_setup,
> >  	.buf_init = rkisp1_params_vb2_buf_init,
> >  	.buf_cleanup = rkisp1_params_vb2_buf_cleanup,
> > +	.buf_out_validate = rkisp1_params_vb2_buf_out_validate,
> >  	.wait_prepare = vb2_ops_wait_prepare,
> >  	.wait_finish = vb2_ops_wait_finish,
> >  	.buf_queue = rkisp1_params_vb2_buf_queue,
>
> --
> Regards,
>
> Laurent Pinchart
>
  
Laurent Pinchart July 1, 2024, 10:47 a.m. UTC | #3
Hi Jacopo,

On Mon, Jul 01, 2024 at 12:43:14PM +0200, Jacopo Mondi wrote:
> On Sat, Jun 29, 2024 at 05:36:07PM GMT, Laurent Pinchart wrote:
> > On Fri, Jun 21, 2024 at 04:54:04PM +0200, Jacopo Mondi wrote:
> > > Implement support in rkisp1-params for the extensible configuration
> > > parameters format.
> > >
> > > Create a list of handlers for each ISP block that wraps the existing
> > > configuration functions and handles the ISP block enablement.
> > >
> > > Parse the configuration parameters buffer in rkisp1_ext_params_config
> > > and filter the enable blocks by group, to allow setting the 'other'
> > > groups separately from the 'lsc' group to support the pre/post-configure
> > > operations.
> > >
> > > Implement the vb2 buf_out_validate() operation to validate the
> > > extensible format buffer content at qbuf time.
> >
> > Is there a particular reason to do so in .buf_out_validate() instead of
> > .buf_prepare() ?
> >
> 
> It felt like it's the right place where to perform validation
> 
>  * @buf_out_validate:	called when the output buffer is prepared or queued
>  *			to a request; drivers can use this to validate
>  *			userspace-provided information; this is required only
>  *			for OUTPUT queues.
> 
> out buffers are validated -before- buf_prepare() is called. I admit it
> might have no practical differences though. Would you prefer to
> collapse everything into _prepare ? If I drop
> 
> 	vb2_set_plane_payload(vb, 0, params->metafmt->buffersize);
> 
> Not much will remain in _prepare() and I could even drop it.

I think I'd collapse it, yes. .buf_out_validate() seems to have been
introduced in codecs and I'm not sure how well-defined its semantics
are. The documentation also states "to a request".

> > > Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
> > > ---
> > >  .../platform/rockchip/rkisp1/rkisp1-common.h  |   3 +
> > >  .../platform/rockchip/rkisp1/rkisp1-params.c  | 553 +++++++++++++++++-
> > >  2 files changed, 540 insertions(+), 16 deletions(-)
> > >
> > > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> > > index ccd2065351b4..bffd936f989a 100644
> > > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> > > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
> > > @@ -390,6 +390,7 @@ struct rkisp1_params_ops {
> > >   * @quantization:	the quantization configured on the isp's src pad
> > >   * @ycbcr_encoding	the YCbCr encoding
> > >   * @raw_type:		the bayer pattern on the isp video sink pad
> > > + * @enabled_blocks:	bitmask of enabled ISP blocks
> > >   */
> > >  struct rkisp1_params {
> > >  	struct rkisp1_vdev_node vnode;
> > > @@ -404,6 +405,8 @@ struct rkisp1_params {
> > >  	enum v4l2_quantization quantization;
> > >  	enum v4l2_ycbcr_encoding ycbcr_encoding;
> > >  	enum rkisp1_fmt_raw_pat_type raw_type;
> > > +
> > > +	u32 enabled_blocks;
> > >  };
> > >
> > >  /*
> > > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> > > index e38d2da994f5..f3ea70c7e0c1 100644
> > > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> > > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> > > @@ -35,6 +35,9 @@
> > >  #define RKISP1_ISP_CC_COEFF(n) \
> > >  			(RKISP1_CIF_ISP_CC_COEFF_0 + (n) * 4)
> > >
> > > +#define RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS	BIT(0)
> > > +#define RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC	BIT(1)
> > > +
> > >  enum rkisp1_params_formats {
> > >  	RKISP1_PARAMS_FIXED,
> > >  	RKISP1_PARAMS_EXTENSIBLE,
> > > @@ -1529,6 +1532,454 @@ rkisp1_params_get_buffer(struct rkisp1_params *params)
> > >  				queue);
> > >  }
> > >
> > > +/*------------------------------------------------------------------------------
> > > + * Extensible parameters format handling
> > > + */
> > > +
> > > +static void rkisp1_ext_params_bls(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_bls_config *bls =
> > > +		(struct rkisp1_ext_params_bls_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
> > > +					RKISP1_CIF_ISP_BLS_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_bls_config(params, &bls->bls_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
> > > +				      RKISP1_CIF_ISP_BLS_ENA);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_dpcc(struct rkisp1_params *params,
> > > +				   struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_dpcc_config *dpcc =
> > > +		(struct rkisp1_ext_params_dpcc_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
> > > +					RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_dpcc_config(params, &dpcc->dpcc_config);
> > > +
> > > +	if (!(params->enabled_blocks &
> > > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
> > > +				      RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_sdg(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_sdg_config *sdg =
> > > +		(struct rkisp1_ext_params_sdg_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> > > +					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_sdg_config(params, &sdg->sdg_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > > +				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_lsc(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_lsc_config *lsc =
> > > +		(struct rkisp1_ext_params_lsc_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
> > > +					RKISP1_CIF_ISP_LSC_CTRL_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_lsc_config(params, &lsc->lsc_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
> > > +				      RKISP1_CIF_ISP_LSC_CTRL_ENA);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_awbg(struct rkisp1_params *params,
> > > +				   struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_awb_gain_config *awbg =
> > > +		(struct rkisp1_ext_params_awb_gain_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> > > +					RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	params->ops->awb_gain_config(params, &awbg->awb_config);
> > > +
> > > +	if (!(params->enabled_blocks &
> > > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > > +				      RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_flt(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_flt_config *flt =
> > > +		(struct rkisp1_ext_params_flt_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_FILT_MODE,
> > > +					RKISP1_CIF_ISP_FLT_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_flt_config(params, &flt->flt_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_FILT_MODE,
> > > +				      RKISP1_CIF_ISP_FLT_ENA);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_bdm(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_bdm_config *bdm =
> > > +		(struct rkisp1_ext_params_bdm_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
> > > +					RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_bdm_config(params, &bdm->bdm_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
> > > +				      RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_ctk(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_ctk_config *ctk =
> > > +		(struct rkisp1_ext_params_ctk_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_ctk_enable(params, false);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_ctk_config(params, &ctk->ctk_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK)))
> > > +		rkisp1_ctk_enable(params, true);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_goc(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_goc_config *goc =
> > > +		(struct rkisp1_ext_params_goc_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
> > > +					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	params->ops->goc_config(params, &goc->goc_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > > +				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_dpf(struct rkisp1_params *params,
> > > +				  struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_dpf_config *dpf =
> > > +		(struct rkisp1_ext_params_dpf_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPF_MODE,
> > > +					RKISP1_CIF_ISP_DPF_MODE_EN);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_dpf_config(params, &dpf->dpf_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPF_MODE,
> > > +				      RKISP1_CIF_ISP_DPF_MODE_EN);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_dpfs(struct rkisp1_params *params,
> > > +				   struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_dpf_strength_config *dpfs =
> > > +		(struct rkisp1_ext_params_dpf_strength_config *)hdr;
> > > +
> > > +	rkisp1_dpf_strength_config(params, &dpfs->dpf_strength_config);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_cproc(struct rkisp1_params *params,
> > > +				    struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_cproc_config *cproc =
> > > +		(struct rkisp1_ext_params_cproc_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_C_PROC_CTRL,
> > > +					RKISP1_CIF_C_PROC_CTR_ENABLE);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_cproc_config(params, &cproc->cproc_config);
> > > +
> > > +	if (!(params->enabled_blocks &
> > > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_C_PROC_CTRL,
> > > +				      RKISP1_CIF_C_PROC_CTR_ENABLE);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_ie(struct rkisp1_params *params,
> > > +				 struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_ie_config *ie =
> > > +		(struct rkisp1_ext_params_ie_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_ie_enable(params, false);
> > > +		return;
> > > +	}
> > > +
> > > +	rkisp1_ie_config(params, &ie->ie_config);
> > > +
> > > +	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_IE)))
> > > +		rkisp1_ie_enable(params, true);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_awbm(struct rkisp1_params *params,
> > > +				   struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_awb_meas_config *awbm =
> > > +		(struct rkisp1_ext_params_awb_meas_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
> > > +					     false);
> > > +		return;
> > > +	}
> > > +
> > > +	params->ops->awb_meas_config(params, &awbm->awb_meas_config);
> > > +
> > > +	if (!(params->enabled_blocks &
> > > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS)))
> > > +		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
> > > +					     true);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_hstm(struct rkisp1_params *params,
> > > +				   struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_hst_config *hst =
> > > +		(struct rkisp1_ext_params_hst_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		params->ops->hst_enable(params, &hst->hst_config, false);
> > > +		return;
> > > +	}
> > > +
> > > +	params->ops->hst_config(params, &hst->hst_config);
> > > +
> > > +	if (!(params->enabled_blocks &
> > > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS)))
> > > +		params->ops->hst_enable(params, &hst->hst_config, true);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_aecm(struct rkisp1_params *params,
> > > +				   struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_aec_config *aec =
> > > +		(struct rkisp1_ext_params_aec_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
> > > +					RKISP1_CIF_ISP_EXP_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	params->ops->aec_config(params, &aec->aec_config);
> > > +
> > > +	if (!(params->enabled_blocks &
> > > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
> > > +				      RKISP1_CIF_ISP_EXP_ENA);
> > > +}
> > > +
> > > +static void rkisp1_ext_params_afcm(struct rkisp1_params *params,
> > > +				   struct rkisp1_ext_params_block_header *hdr)
> > > +{
> > > +	struct rkisp1_ext_params_afc_config *afc =
> > > +		(struct rkisp1_ext_params_afc_config *)hdr;
> > > +
> > > +	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
> > > +		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
> > > +					RKISP1_CIF_ISP_AFM_ENA);
> > > +		return;
> > > +	}
> > > +
> > > +	params->ops->afm_config(params, &afc->afc_config);
> > > +
> > > +	if (!(params->enabled_blocks &
> > > +	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS)))
> > > +		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
> > > +				      RKISP1_CIF_ISP_AFM_ENA);
> > > +}
> >
> > I still think we could get rid of most of these functions by adding
> > .enable(), .configure() and .disable() operations to
> > rkisp1_ext_params_handler. That can be done later.
> >
> > > +
> > > +typedef void (*rkisp1_block_handler)(struct rkisp1_params *params,
> > > +				     struct rkisp1_ext_params_block_header *hdr);
> >
> > If it doesn't cause any issue, I'd make the hdr const.
> >
> > > +
> > > +static const struct rkisp1_ext_params_handler {
> > > +	size_t size;
> > > +	rkisp1_block_handler handler;
> > > +	unsigned int group;
> > > +} rkisp1_ext_params_handlers[] = {
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_bls_config),
> > > +		.handler	= rkisp1_ext_params_bls,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_dpcc_config),
> > > +		.handler	= rkisp1_ext_params_dpcc,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_sdg_config),
> > > +		.handler	= rkisp1_ext_params_sdg,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS] = {
> > > +		.size		=
> > > +			sizeof(struct rkisp1_ext_params_awb_gain_config),
> > > +		.handler	= rkisp1_ext_params_awbg,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_flt_config),
> > > +		.handler	= rkisp1_ext_params_flt,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_bdm_config),
> > > +		.handler	= rkisp1_ext_params_bdm,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_ctk_config),
> > > +		.handler	= rkisp1_ext_params_ctk,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_goc_config),
> > > +		.handler	= rkisp1_ext_params_goc,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_dpf_config),
> > > +		.handler	= rkisp1_ext_params_dpf,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGTH] = {
> > > +		.size		=
> > > +			sizeof(struct rkisp1_ext_params_dpf_strength_config),
> > > +		.handler	= rkisp1_ext_params_dpfs,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_cproc_config),
> > > +		.handler	= rkisp1_ext_params_cproc,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_IE] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_ie_config),
> > > +		.handler	= rkisp1_ext_params_ie,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_lsc_config),
> > > +		.handler	= rkisp1_ext_params_lsc,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS] = {
> > > +		.size		=
> > > +			sizeof(struct rkisp1_ext_params_awb_meas_config),
> > > +		.handler	= rkisp1_ext_params_awbm,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_hst_config),
> > > +		.handler	= rkisp1_ext_params_hstm,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_aec_config),
> > > +		.handler	= rkisp1_ext_params_aecm,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS] = {
> > > +		.size		= sizeof(struct rkisp1_ext_params_afc_config),
> > > +		.handler	= rkisp1_ext_params_afcm,
> > > +		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
> > > +	},
> > > +};
> > > +
> > > +static void rkisp1_ext_params_config(struct rkisp1_params *params,
> > > +				     struct rkisp1_ext_params_cfg *cfg,
> > > +				     u32 block_group_mask)
> > > +{
> > > +	size_t block_offset = 0;
> > > +
> > > +	if (WARN_ON(!cfg))
> > > +		return;
> > > +
> > > +	/* Walk the list of parameter blocks and process them. */
> > > +	while (block_offset < cfg->total_size) {
> > > +		const struct rkisp1_ext_params_handler *block_handler;
> > > +		struct rkisp1_ext_params_block_header *block;
> >
> > const
> >
> > > +
> > > +		block = (struct rkisp1_ext_params_block_header *)
> > > +			&cfg->data[block_offset];
> > > +		block_offset += block->size;
> > > +
> > > +		/* Make sure the block is in the list of groups to configure. */
> > > +		block_handler = &rkisp1_ext_params_handlers[block->type];
> > > +		if (!(block_handler->group & block_group_mask))
> > > +			continue;
> > > +
> > > +		block_handler->handler(params, block);
> > > +
> > > +		if (block->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE)
> > > +			params->enabled_blocks &= ~BIT(block->type);
> > > +		else
> > > +			params->enabled_blocks |= BIT(block->type);
> > > +	}
> > > +}
> > > +
> > >  static void rkisp1_params_complete_buffer(struct rkisp1_params *params,
> > >  					  struct rkisp1_params_buffer *buf,
> > >  					  unsigned int frame_sequence)
> > > @@ -1550,9 +2001,15 @@ void rkisp1_params_isr(struct rkisp1_device *rkisp1)
> > >  	if (!cur_buf)
> > >  		goto unlock;
> > >
> > > -	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > > -	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > > -	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
> > > +		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > > +		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > > +		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > > +	} else {
> > > +		rkisp1_ext_params_config(params, cur_buf->cfg,
> > > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS |
> > > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
> > > +	}
> > >
> > >  	/* update shadow register immediately */
> > >  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > > @@ -1651,8 +2108,13 @@ void rkisp1_params_pre_configure(struct rkisp1_params *params,
> > >  	if (!cur_buf)
> > >  		goto unlock;
> > >
> > > -	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > > -	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
> > > +		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
> > > +		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
> > > +	} else {
> > > +		rkisp1_ext_params_config(params, cur_buf->cfg,
> > > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS);
> > > +	}
> > >
> > >  	/* update shadow register immediately */
> > >  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > > @@ -1680,7 +2142,11 @@ void rkisp1_params_post_configure(struct rkisp1_params *params)
> > >  	if (!cur_buf)
> > >  		goto unlock;
> > >
> > > -	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
> > > +		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
> > > +	else
> > > +		rkisp1_ext_params_config(params, cur_buf->cfg,
> > > +					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
> > >
> > >  	/* update shadow register immediately */
> > >  	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
> > > @@ -1874,10 +2340,6 @@ static void rkisp1_params_vb2_buf_queue(struct vb2_buffer *vb)
> > >
> > >  static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
> > >  {
> > > -	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> > > -	struct rkisp1_params_buffer *params_buf =
> > > -		container_of(vbuf, struct rkisp1_params_buffer, vb);
> > > -	void *cfg = vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
> > >  	struct rkisp1_params *params = vb->vb2_queue->drv_priv;
> > >
> > >  	if (vb2_plane_size(vb, 0) < params->metafmt->buffersize)
> > > @@ -1885,12 +2347,6 @@ static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
> > >
> > >  	vb2_set_plane_payload(vb, 0, params->metafmt->buffersize);
> > >
> > > -	/*
> > > -	 * Copy the parameters buffer to the internal scratch buffer to avoid
> > > -	 * userspace modifying the buffer content while the driver processes it.
> > > -	 */
> > > -	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
> > > -
> > >  	return 0;
> > >  }
> > >
> > > @@ -1911,12 +2367,77 @@ static void rkisp1_params_vb2_stop_streaming(struct vb2_queue *vq)
> > >
> > >  	list_for_each_entry(buf, &tmp_list, queue)
> > >  		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
> > > +
> > > +	params->enabled_blocks = 0;
> > > +}
> > > +
> > > +static int rkisp1_params_validate_ext_params(struct rkisp1_params *params,
> > > +					     struct rkisp1_ext_params_cfg *cfg)
> > > +{
> > > +	size_t block_offset = 0;
> > > +
> > > +	if (cfg->total_size > RKISP1_EXT_PARAMS_MAX_SIZE) {
> > > +		dev_dbg(params->rkisp1->dev,
> > > +			"Invalid parameters buffer size %u\n",
> > > +			cfg->total_size);
> > > +		return -EINVAL;
> > > +	}
> >
> > Following my review comments on patch 5/7, you should also validate that
> > offsetof(struct rkisp1_ext_params_cfg, data) + cfg->total_size >= plane payload.
> >
> > > +
> > > +	/* Walk the list of parameter blocks and validate them. */
> > > +	while (block_offset < cfg->total_size) {
> >
> > 	while (cfg->total_size - block_offset >=
> > 	       sizeof(struct rkisp1_ext_params_block_header)) {
> >
> > Otherwise there could be just one byte left, and dereferencing block
> > below would read uninitialized memory.
> >
> > > +		const struct rkisp1_ext_params_handler *hdlr;
> >
> > Maybe handler, it's not much longer, and is more readable.
> >
> > > +		struct rkisp1_ext_params_block_header *block;
> >
> > const
> >
> > > +
> > > +		block = (struct rkisp1_ext_params_block_header *)
> > > +			&cfg->data[block_offset];
> > > +
> > > +		if (block->type >= RKISP1_EXT_PARAMS_BLOCK_TYPE_SENTINEL) {
> >
> > 		if (block->type >= ARRAY_SIZE(rkisp1_ext_params_handlers)) {
> >
> > which allows you to drop RKISP1_EXT_PARAMS_BLOCK_TYPE_SENTINEL from the
> > UAPI header.
> >
> > > +			dev_dbg(params->rkisp1->dev,
> > > +				"Invalid parameters block type\n");
> > > +			return -EINVAL;
> > > +		}
> > > +
> > > +		hdlr = &rkisp1_ext_params_handlers[block->type];
> > > +		if (block->size != hdlr->size) {
> > > +			dev_dbg(params->rkisp1->dev,
> > > +				"Invalid parameters block size\n");
> > > +			return -EINVAL;
> > > +		}
> >
> > You need to test here that block->size >= cfg->total_size -
> > block_offset. It may be easier to add a new local variable at the top of
> > the function
> >
> > 	size_t remaining_size = cfg->total_size;
> >
> > The loop would then become
> >
> > 	while (remaining_size >= sizeof(struct rkisp1_ext_params_block_header)) {
> > 		const struct rkisp1_ext_params_block_header *block;
> > 		const struct rkisp1_ext_params_handler *handler;
> >
> > 		block = (struct rkisp1_ext_params_block_header *)
> > 			&cfg->data[block_offset];
> >
> > 		if (block->type >= ARRAY_SIZE(rkisp1_ext_params_handlers)) {
> > 			dev_dbg(params->rkisp1->dev,
> > 				"Invalid parameters block type\n");
> > 			return -EINVAL;
> > 		}
> >
> > 		if (block->size > remaining_size) {
> > 			dev_dbg(params->rkisp1->dev,
> > 				"Premature end of parameters data\n");
> > 			return -EINVAL;
> > 		}
> >
> > 		handler = &rkisp1_ext_params_handlers[block->type];
> > 		if (block->size != handler->size) {
> > 			dev_dbg(params->rkisp1->dev,
> > 				"Invalid parameters block size\n");
> > 			return -EINVAL;
> > 		}
> >
> > 		block_offset += block->size;
> > 		reamining_size -= block->size;
> > 	}
> >
> > > +
> > > +		block_offset += block->size;
> > > +	}
> > > +
> > > +	return 0;
> > > +}
> > > +
> > > +static int rkisp1_params_vb2_buf_out_validate(struct vb2_buffer *vb)
> > > +{
> > > +	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> > > +	struct rkisp1_params_buffer *params_buf =
> > > +		container_of(vbuf, struct rkisp1_params_buffer, vb);
> > > +	struct vb2_queue *vq = vb->vb2_queue;
> > > +	struct rkisp1_params *params = vq->drv_priv;
> > > +	struct rkisp1_ext_params_cfg *cfg =
> > > +		vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
> > > +
> > > +	/*
> > > +	 * Copy the parameters buffer to the internal scratch buffer to avoid
> > > +	 * userspace modifying the buffer content while the driver processes it.
> > > +	 */
> > > +	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
> > > +
> > > +	/* Fixed parameters format doesn't require validation. */
> > > +	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
> > > +		return 0;
> > > +
> > > +	return rkisp1_params_validate_ext_params(params, cfg);
> > >  }
> > >
> > >  static const struct vb2_ops rkisp1_params_vb2_ops = {
> > >  	.queue_setup = rkisp1_params_vb2_queue_setup,
> > >  	.buf_init = rkisp1_params_vb2_buf_init,
> > >  	.buf_cleanup = rkisp1_params_vb2_buf_cleanup,
> > > +	.buf_out_validate = rkisp1_params_vb2_buf_out_validate,
> > >  	.wait_prepare = vb2_ops_wait_prepare,
> > >  	.wait_finish = vb2_ops_wait_finish,
> > >  	.buf_queue = rkisp1_params_vb2_buf_queue,
  

Patch

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index ccd2065351b4..bffd936f989a 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -390,6 +390,7 @@  struct rkisp1_params_ops {
  * @quantization:	the quantization configured on the isp's src pad
  * @ycbcr_encoding	the YCbCr encoding
  * @raw_type:		the bayer pattern on the isp video sink pad
+ * @enabled_blocks:	bitmask of enabled ISP blocks
  */
 struct rkisp1_params {
 	struct rkisp1_vdev_node vnode;
@@ -404,6 +405,8 @@  struct rkisp1_params {
 	enum v4l2_quantization quantization;
 	enum v4l2_ycbcr_encoding ycbcr_encoding;
 	enum rkisp1_fmt_raw_pat_type raw_type;
+
+	u32 enabled_blocks;
 };
 
 /*
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
index e38d2da994f5..f3ea70c7e0c1 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
@@ -35,6 +35,9 @@ 
 #define RKISP1_ISP_CC_COEFF(n) \
 			(RKISP1_CIF_ISP_CC_COEFF_0 + (n) * 4)
 
+#define RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS	BIT(0)
+#define RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC	BIT(1)
+
 enum rkisp1_params_formats {
 	RKISP1_PARAMS_FIXED,
 	RKISP1_PARAMS_EXTENSIBLE,
@@ -1529,6 +1532,454 @@  rkisp1_params_get_buffer(struct rkisp1_params *params)
 				queue);
 }
 
+/*------------------------------------------------------------------------------
+ * Extensible parameters format handling
+ */
+
+static void rkisp1_ext_params_bls(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_bls_config *bls =
+		(struct rkisp1_ext_params_bls_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
+					RKISP1_CIF_ISP_BLS_ENA);
+		return;
+	}
+
+	rkisp1_bls_config(params, &bls->bls_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_BLS_CTRL,
+				      RKISP1_CIF_ISP_BLS_ENA);
+}
+
+static void rkisp1_ext_params_dpcc(struct rkisp1_params *params,
+				   struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_dpcc_config *dpcc =
+		(struct rkisp1_ext_params_dpcc_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
+					RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
+		return;
+	}
+
+	rkisp1_dpcc_config(params, &dpcc->dpcc_config);
+
+	if (!(params->enabled_blocks &
+	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPCC_MODE,
+				      RKISP1_CIF_ISP_DPCC_MODE_DPCC_ENABLE);
+}
+
+static void rkisp1_ext_params_sdg(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_sdg_config *sdg =
+		(struct rkisp1_ext_params_sdg_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
+					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
+		return;
+	}
+
+	rkisp1_sdg_config(params, &sdg->sdg_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
+				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_IN_ENA);
+}
+
+static void rkisp1_ext_params_lsc(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_lsc_config *lsc =
+		(struct rkisp1_ext_params_lsc_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
+					RKISP1_CIF_ISP_LSC_CTRL_ENA);
+		return;
+	}
+
+	rkisp1_lsc_config(params, &lsc->lsc_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_LSC_CTRL,
+				      RKISP1_CIF_ISP_LSC_CTRL_ENA);
+}
+
+static void rkisp1_ext_params_awbg(struct rkisp1_params *params,
+				   struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_awb_gain_config *awbg =
+		(struct rkisp1_ext_params_awb_gain_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
+					RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
+		return;
+	}
+
+	params->ops->awb_gain_config(params, &awbg->awb_config);
+
+	if (!(params->enabled_blocks &
+	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
+				      RKISP1_CIF_ISP_CTRL_ISP_AWB_ENA);
+}
+
+static void rkisp1_ext_params_flt(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_flt_config *flt =
+		(struct rkisp1_ext_params_flt_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_FILT_MODE,
+					RKISP1_CIF_ISP_FLT_ENA);
+		return;
+	}
+
+	rkisp1_flt_config(params, &flt->flt_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_FILT_MODE,
+				      RKISP1_CIF_ISP_FLT_ENA);
+}
+
+static void rkisp1_ext_params_bdm(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_bdm_config *bdm =
+		(struct rkisp1_ext_params_bdm_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
+					RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
+		return;
+	}
+
+	rkisp1_bdm_config(params, &bdm->bdm_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DEMOSAIC,
+				      RKISP1_CIF_ISP_DEMOSAIC_BYPASS);
+}
+
+static void rkisp1_ext_params_ctk(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_ctk_config *ctk =
+		(struct rkisp1_ext_params_ctk_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_ctk_enable(params, false);
+		return;
+	}
+
+	rkisp1_ctk_config(params, &ctk->ctk_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK)))
+		rkisp1_ctk_enable(params, true);
+}
+
+static void rkisp1_ext_params_goc(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_goc_config *goc =
+		(struct rkisp1_ext_params_goc_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_CTRL,
+					RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
+		return;
+	}
+
+	params->ops->goc_config(params, &goc->goc_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
+				      RKISP1_CIF_ISP_CTRL_ISP_GAMMA_OUT_ENA);
+}
+
+static void rkisp1_ext_params_dpf(struct rkisp1_params *params,
+				  struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_dpf_config *dpf =
+		(struct rkisp1_ext_params_dpf_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_DPF_MODE,
+					RKISP1_CIF_ISP_DPF_MODE_EN);
+		return;
+	}
+
+	rkisp1_dpf_config(params, &dpf->dpf_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_DPF_MODE,
+				      RKISP1_CIF_ISP_DPF_MODE_EN);
+}
+
+static void rkisp1_ext_params_dpfs(struct rkisp1_params *params,
+				   struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_dpf_strength_config *dpfs =
+		(struct rkisp1_ext_params_dpf_strength_config *)hdr;
+
+	rkisp1_dpf_strength_config(params, &dpfs->dpf_strength_config);
+}
+
+static void rkisp1_ext_params_cproc(struct rkisp1_params *params,
+				    struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_cproc_config *cproc =
+		(struct rkisp1_ext_params_cproc_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_C_PROC_CTRL,
+					RKISP1_CIF_C_PROC_CTR_ENABLE);
+		return;
+	}
+
+	rkisp1_cproc_config(params, &cproc->cproc_config);
+
+	if (!(params->enabled_blocks &
+	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_C_PROC_CTRL,
+				      RKISP1_CIF_C_PROC_CTR_ENABLE);
+}
+
+static void rkisp1_ext_params_ie(struct rkisp1_params *params,
+				 struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_ie_config *ie =
+		(struct rkisp1_ext_params_ie_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_ie_enable(params, false);
+		return;
+	}
+
+	rkisp1_ie_config(params, &ie->ie_config);
+
+	if (!(params->enabled_blocks & BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_IE)))
+		rkisp1_ie_enable(params, true);
+}
+
+static void rkisp1_ext_params_awbm(struct rkisp1_params *params,
+				   struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_awb_meas_config *awbm =
+		(struct rkisp1_ext_params_awb_meas_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
+					     false);
+		return;
+	}
+
+	params->ops->awb_meas_config(params, &awbm->awb_meas_config);
+
+	if (!(params->enabled_blocks &
+	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS)))
+		params->ops->awb_meas_enable(params, &awbm->awb_meas_config,
+					     true);
+}
+
+static void rkisp1_ext_params_hstm(struct rkisp1_params *params,
+				   struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_hst_config *hst =
+		(struct rkisp1_ext_params_hst_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		params->ops->hst_enable(params, &hst->hst_config, false);
+		return;
+	}
+
+	params->ops->hst_config(params, &hst->hst_config);
+
+	if (!(params->enabled_blocks &
+	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS)))
+		params->ops->hst_enable(params, &hst->hst_config, true);
+}
+
+static void rkisp1_ext_params_aecm(struct rkisp1_params *params,
+				   struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_aec_config *aec =
+		(struct rkisp1_ext_params_aec_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
+					RKISP1_CIF_ISP_EXP_ENA);
+		return;
+	}
+
+	params->ops->aec_config(params, &aec->aec_config);
+
+	if (!(params->enabled_blocks &
+	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_EXP_CTRL,
+				      RKISP1_CIF_ISP_EXP_ENA);
+}
+
+static void rkisp1_ext_params_afcm(struct rkisp1_params *params,
+				   struct rkisp1_ext_params_block_header *hdr)
+{
+	struct rkisp1_ext_params_afc_config *afc =
+		(struct rkisp1_ext_params_afc_config *)hdr;
+
+	if (hdr->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE) {
+		rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
+					RKISP1_CIF_ISP_AFM_ENA);
+		return;
+	}
+
+	params->ops->afm_config(params, &afc->afc_config);
+
+	if (!(params->enabled_blocks &
+	      BIT(RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS)))
+		rkisp1_param_set_bits(params, RKISP1_CIF_ISP_AFM_CTRL,
+				      RKISP1_CIF_ISP_AFM_ENA);
+}
+
+typedef void (*rkisp1_block_handler)(struct rkisp1_params *params,
+				     struct rkisp1_ext_params_block_header *hdr);
+
+static const struct rkisp1_ext_params_handler {
+	size_t size;
+	rkisp1_block_handler handler;
+	unsigned int group;
+} rkisp1_ext_params_handlers[] = {
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS] = {
+		.size		= sizeof(struct rkisp1_ext_params_bls_config),
+		.handler	= rkisp1_ext_params_bls,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPCC] = {
+		.size		= sizeof(struct rkisp1_ext_params_dpcc_config),
+		.handler	= rkisp1_ext_params_dpcc,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_SDG] = {
+		.size		= sizeof(struct rkisp1_ext_params_sdg_config),
+		.handler	= rkisp1_ext_params_sdg,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_GAINS] = {
+		.size		=
+			sizeof(struct rkisp1_ext_params_awb_gain_config),
+		.handler	= rkisp1_ext_params_awbg,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_FLT] = {
+		.size		= sizeof(struct rkisp1_ext_params_flt_config),
+		.handler	= rkisp1_ext_params_flt,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_BDM] = {
+		.size		= sizeof(struct rkisp1_ext_params_bdm_config),
+		.handler	= rkisp1_ext_params_bdm,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CTK] = {
+		.size		= sizeof(struct rkisp1_ext_params_ctk_config),
+		.handler	= rkisp1_ext_params_ctk,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_GOC] = {
+		.size		= sizeof(struct rkisp1_ext_params_goc_config),
+		.handler	= rkisp1_ext_params_goc,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF] = {
+		.size		= sizeof(struct rkisp1_ext_params_dpf_config),
+		.handler	= rkisp1_ext_params_dpf,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_DPF_STRENGTH] = {
+		.size		=
+			sizeof(struct rkisp1_ext_params_dpf_strength_config),
+		.handler	= rkisp1_ext_params_dpfs,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_CPROC] = {
+		.size		= sizeof(struct rkisp1_ext_params_cproc_config),
+		.handler	= rkisp1_ext_params_cproc,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_IE] = {
+		.size		= sizeof(struct rkisp1_ext_params_ie_config),
+		.handler	= rkisp1_ext_params_ie,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_LSC] = {
+		.size		= sizeof(struct rkisp1_ext_params_lsc_config),
+		.handler	= rkisp1_ext_params_lsc,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AWB_MEAS] = {
+		.size		=
+			sizeof(struct rkisp1_ext_params_awb_meas_config),
+		.handler	= rkisp1_ext_params_awbm,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_HST_MEAS] = {
+		.size		= sizeof(struct rkisp1_ext_params_hst_config),
+		.handler	= rkisp1_ext_params_hstm,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AEC_MEAS] = {
+		.size		= sizeof(struct rkisp1_ext_params_aec_config),
+		.handler	= rkisp1_ext_params_aecm,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+	[RKISP1_EXT_PARAMS_BLOCK_TYPE_AFC_MEAS] = {
+		.size		= sizeof(struct rkisp1_ext_params_afc_config),
+		.handler	= rkisp1_ext_params_afcm,
+		.group		= RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS
+	},
+};
+
+static void rkisp1_ext_params_config(struct rkisp1_params *params,
+				     struct rkisp1_ext_params_cfg *cfg,
+				     u32 block_group_mask)
+{
+	size_t block_offset = 0;
+
+	if (WARN_ON(!cfg))
+		return;
+
+	/* Walk the list of parameter blocks and process them. */
+	while (block_offset < cfg->total_size) {
+		const struct rkisp1_ext_params_handler *block_handler;
+		struct rkisp1_ext_params_block_header *block;
+
+		block = (struct rkisp1_ext_params_block_header *)
+			&cfg->data[block_offset];
+		block_offset += block->size;
+
+		/* Make sure the block is in the list of groups to configure. */
+		block_handler = &rkisp1_ext_params_handlers[block->type];
+		if (!(block_handler->group & block_group_mask))
+			continue;
+
+		block_handler->handler(params, block);
+
+		if (block->enable == RKISP1_EXT_PARAMS_BLOCK_DISABLE)
+			params->enabled_blocks &= ~BIT(block->type);
+		else
+			params->enabled_blocks |= BIT(block->type);
+	}
+}
+
 static void rkisp1_params_complete_buffer(struct rkisp1_params *params,
 					  struct rkisp1_params_buffer *buf,
 					  unsigned int frame_sequence)
@@ -1550,9 +2001,15 @@  void rkisp1_params_isr(struct rkisp1_device *rkisp1)
 	if (!cur_buf)
 		goto unlock;
 
-	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
-	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
-	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
+	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
+		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
+		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
+		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
+	} else {
+		rkisp1_ext_params_config(params, cur_buf->cfg,
+					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS |
+					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
+	}
 
 	/* update shadow register immediately */
 	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
@@ -1651,8 +2108,13 @@  void rkisp1_params_pre_configure(struct rkisp1_params *params,
 	if (!cur_buf)
 		goto unlock;
 
-	rkisp1_isp_isr_other_config(params, cur_buf->cfg);
-	rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
+	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS) {
+		rkisp1_isp_isr_other_config(params, cur_buf->cfg);
+		rkisp1_isp_isr_meas_config(params, cur_buf->cfg);
+	} else {
+		rkisp1_ext_params_config(params, cur_buf->cfg,
+					 RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS);
+	}
 
 	/* update shadow register immediately */
 	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
@@ -1680,7 +2142,11 @@  void rkisp1_params_post_configure(struct rkisp1_params *params)
 	if (!cur_buf)
 		goto unlock;
 
-	rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
+	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
+		rkisp1_isp_isr_lsc_config(params, cur_buf->cfg);
+	else
+		rkisp1_ext_params_config(params, cur_buf->cfg,
+					 RKISP1_EXT_PARAMS_BLOCK_GROUP_LSC);
 
 	/* update shadow register immediately */
 	rkisp1_param_set_bits(params, RKISP1_CIF_ISP_CTRL,
@@ -1874,10 +2340,6 @@  static void rkisp1_params_vb2_buf_queue(struct vb2_buffer *vb)
 
 static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
 {
-	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
-	struct rkisp1_params_buffer *params_buf =
-		container_of(vbuf, struct rkisp1_params_buffer, vb);
-	void *cfg = vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
 	struct rkisp1_params *params = vb->vb2_queue->drv_priv;
 
 	if (vb2_plane_size(vb, 0) < params->metafmt->buffersize)
@@ -1885,12 +2347,6 @@  static int rkisp1_params_vb2_buf_prepare(struct vb2_buffer *vb)
 
 	vb2_set_plane_payload(vb, 0, params->metafmt->buffersize);
 
-	/*
-	 * Copy the parameters buffer to the internal scratch buffer to avoid
-	 * userspace modifying the buffer content while the driver processes it.
-	 */
-	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
-
 	return 0;
 }
 
@@ -1911,12 +2367,77 @@  static void rkisp1_params_vb2_stop_streaming(struct vb2_queue *vq)
 
 	list_for_each_entry(buf, &tmp_list, queue)
 		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+
+	params->enabled_blocks = 0;
+}
+
+static int rkisp1_params_validate_ext_params(struct rkisp1_params *params,
+					     struct rkisp1_ext_params_cfg *cfg)
+{
+	size_t block_offset = 0;
+
+	if (cfg->total_size > RKISP1_EXT_PARAMS_MAX_SIZE) {
+		dev_dbg(params->rkisp1->dev,
+			"Invalid parameters buffer size %u\n",
+			cfg->total_size);
+		return -EINVAL;
+	}
+
+	/* Walk the list of parameter blocks and validate them. */
+	while (block_offset < cfg->total_size) {
+		const struct rkisp1_ext_params_handler *hdlr;
+		struct rkisp1_ext_params_block_header *block;
+
+		block = (struct rkisp1_ext_params_block_header *)
+			&cfg->data[block_offset];
+
+		if (block->type >= RKISP1_EXT_PARAMS_BLOCK_TYPE_SENTINEL) {
+			dev_dbg(params->rkisp1->dev,
+				"Invalid parameters block type\n");
+			return -EINVAL;
+		}
+
+		hdlr = &rkisp1_ext_params_handlers[block->type];
+		if (block->size != hdlr->size) {
+			dev_dbg(params->rkisp1->dev,
+				"Invalid parameters block size\n");
+			return -EINVAL;
+		}
+
+		block_offset += block->size;
+	}
+
+	return 0;
+}
+
+static int rkisp1_params_vb2_buf_out_validate(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct rkisp1_params_buffer *params_buf =
+		container_of(vbuf, struct rkisp1_params_buffer, vb);
+	struct vb2_queue *vq = vb->vb2_queue;
+	struct rkisp1_params *params = vq->drv_priv;
+	struct rkisp1_ext_params_cfg *cfg =
+		vb2_plane_vaddr(&params_buf->vb.vb2_buf, 0);
+
+	/*
+	 * Copy the parameters buffer to the internal scratch buffer to avoid
+	 * userspace modifying the buffer content while the driver processes it.
+	 */
+	memcpy(params_buf->cfg, cfg, params->metafmt->buffersize);
+
+	/* Fixed parameters format doesn't require validation. */
+	if (params->metafmt->dataformat == V4L2_META_FMT_RK_ISP1_PARAMS)
+		return 0;
+
+	return rkisp1_params_validate_ext_params(params, cfg);
 }
 
 static const struct vb2_ops rkisp1_params_vb2_ops = {
 	.queue_setup = rkisp1_params_vb2_queue_setup,
 	.buf_init = rkisp1_params_vb2_buf_init,
 	.buf_cleanup = rkisp1_params_vb2_buf_cleanup,
+	.buf_out_validate = rkisp1_params_vb2_buf_out_validate,
 	.wait_prepare = vb2_ops_wait_prepare,
 	.wait_finish = vb2_ops_wait_finish,
 	.buf_queue = rkisp1_params_vb2_buf_queue,