Commit d7d0e73f authored by Abhinav Kumar's avatar Abhinav Kumar Committed by Dmitry Baryshkov
Browse files

drm/msm/dpu: introduce the dpu_encoder_phys_* for writeback 

Introduce the dpu_encoder_phys_* for the writeback interface
to handle writeback specific hardware programming.

changes in v4:
	- squash the encoder_phys_wb bits from [1]
	- since its a trivial change of a previously acked change
	  preserving the ack

[1] https://patchwork.freedesktop.org/patch/483099/?series=102964&rev=2



Signed-off-by: default avatarAbhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/483532/
Link: https://lore.kernel.org/r/1650984096-9964-14-git-send-email-quic_abhinavk@quicinc.com


Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
parent 21539b8f

drivers/gpu/drm/msm/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -60,6 +60,7 @@ msm-$(CONFIG_DRM_MSM_DPU) += \ 
	disp/dpu1/dpu_encoder.o \

	disp/dpu1/dpu_encoder_phys_cmd.o \

	disp/dpu1/dpu_encoder_phys_vid.o \

	disp/dpu1/dpu_encoder_phys_wb.o \

	disp/dpu1/dpu_formats.o \

	disp/dpu1/dpu_hw_catalog.o \

	disp/dpu1/dpu_hw_ctl.o \

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h

+30 −0
Original line number Diff line number Diff line
@@ -150,6 +150,7 @@ struct dpu_encoder_phys_ops { 
 * @INTR_IDX_PINGPONG: Pingpong done unterrupt for cmd mode panel

 * @INTR_IDX_UNDERRUN: Underrun unterrupt for video and cmd mode panel

 * @INTR_IDX_RDPTR:    Readpointer done unterrupt for cmd mode panel

 * @INTR_IDX_WB_DONE:  Writeback fone interrupt for virtual connector

 */

enum dpu_intr_idx {

	INTR_IDX_VSYNC,
@@ -157,6 +158,7 @@ enum dpu_intr_idx { 
	INTR_IDX_UNDERRUN,

	INTR_IDX_CTL_START,

	INTR_IDX_RDPTR,

	INTR_IDX_WB_DONE,

	INTR_IDX_MAX,

};
@@ -225,6 +227,27 @@ static inline int dpu_encoder_phys_inc_pending(struct dpu_encoder_phys *phys) 
	return atomic_inc_return(&phys->pending_kickoff_cnt);

}



/**

 * struct dpu_encoder_phys_wb - sub-class of dpu_encoder_phys to handle command

 *	mode specific operations

 * @base:	Baseclass physical encoder structure

 * @wbirq_refcount:     Reference count of writeback interrupt

 * @wb_done_timeout_cnt: number of wb done irq timeout errors

 * @wb_cfg:  writeback block config to store fb related details

 * @wb_conn: backpointer to writeback connector

 * @wb_job: backpointer to current writeback job

 * @dest:   dpu buffer layout for current writeback output buffer

 */

struct dpu_encoder_phys_wb {

	struct dpu_encoder_phys base;

	atomic_t wbirq_refcount;

	int wb_done_timeout_cnt;

	struct dpu_hw_wb_cfg wb_cfg;

	struct drm_writeback_connector *wb_conn;

	struct drm_writeback_job *wb_job;

	struct dpu_hw_fmt_layout dest;

};



/**

 * struct dpu_encoder_phys_cmd - sub-class of dpu_encoder_phys to handle command

 *	mode specific operations
@@ -294,6 +317,13 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init( 
struct dpu_encoder_phys *dpu_encoder_phys_cmd_init(

		struct dpu_enc_phys_init_params *p);



/**

 * dpu_encoder_phys_wb_init - initialize writeback encoder

 * @init:	Pointer to init info structure with initialization params

 */

struct dpu_encoder_phys *dpu_encoder_phys_wb_init(

		struct dpu_enc_phys_init_params *p);



/**

 * dpu_encoder_helper_trigger_start - control start helper function

 *	This helper function may be optionally specified by physical

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c

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