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Commit cffea744 authored by Dhaval Patel's avatar Dhaval Patel
Browse files

mdss: mdp: add debugfs node for danger/safe on mdss 



Add debugfs node to get the danger/safe status of mdp
and source pipes on MDSS.

Change-Id: I0c93d42b144cda932d80ba18221ae814bed3d3d4
Signed-off-by: default avatarDhaval Patel <pdhaval@codeaurora.org>
parent 79ef7b34

drivers/video/msm/mdss/mdss_mdp_debug.c

+63 −0
Original line number Diff line number Diff line
@@ -1035,6 +1035,65 @@ static int mdss_debugfs_buffers_show(struct seq_file *s, void *v) 
}

DEFINE_MDSS_DEBUGFS_SEQ_FOPS(mdss_debugfs_buffers);



static int __danger_safe_signal_status(struct seq_file *s, bool danger_status)

{

	struct mdss_data_type *mdata = (struct mdss_data_type *)s->private;

	u32 status;

	int i, j;



	mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_ON);

	if (danger_status) {

		seq_puts(s, "\nDanger signal status:\n");

		status = readl_relaxed(mdata->mdp_base +

			MDSS_MDP_DANGER_STATUS);

	} else {

		seq_puts(s, "\nSafe signal status:\n");

		status = readl_relaxed(mdata->mdp_base +

			MDSS_MDP_SAFE_STATUS);

	}

	mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF);



	seq_printf(s, "MDP     :  0x%lx\n",

		DANGER_SAFE_STATUS(status, MDP_DANGER_SAFE_BIT_OFFSET));



	for (i = 0, j = VIG_DANGER_SAFE_BIT_OFFSET; i < mdata->nvig_pipes;

			i++, j += 2)

		seq_printf(s, "VIG%d    :  0x%lx  \t", i,

			DANGER_SAFE_STATUS(status, j));

	seq_puts(s, "\n");



	for (i = 0, j = RGB_DANGER_SAFE_BIT_OFFSET; i < mdata->nrgb_pipes;

			i++, j += 2)

		seq_printf(s, "RGB%d    :  0x%lx  \t", i,

			DANGER_SAFE_STATUS(status, j));

	seq_puts(s, "\n");

	for (i = 0, j = DMA_DANGER_SAFE_BIT_OFFSET; i < mdata->ndma_pipes;

			i++, j += 2)

		seq_printf(s, "DMA%d    :  0x%lx  \t", i,

			DANGER_SAFE_STATUS(status, j));

	seq_puts(s, "\n");



	for (i = 0, j = CURSOR_DANGER_SAFE_BIT_OFFSET; i < mdata->ncursor_pipes;

			i++, j += 2)

		seq_printf(s, "CURSOR%d :  0x%lx  \t", i,

			DANGER_SAFE_STATUS(status, j));

	seq_puts(s, "\n");



	return 0;

}



static int mdss_debugfs_danger_stats_show(struct seq_file *s, void *v)

{

	return __danger_safe_signal_status(s, true);

}

DEFINE_MDSS_DEBUGFS_SEQ_FOPS(mdss_debugfs_danger_stats);



static int mdss_debugfs_safe_stats_show(struct seq_file *s, void *v)

{

	return __danger_safe_signal_status(s, false);

}

DEFINE_MDSS_DEBUGFS_SEQ_FOPS(mdss_debugfs_safe_stats);



static void __stats_ctl_dump(struct mdss_mdp_ctl *ctl, struct seq_file *s)

{

	if (!ctl->ref_cnt)
@@ -1106,6 +1165,10 @@ int mdss_mdp_debugfs_init(struct mdss_data_type *mdata) 
			&mdss_debugfs_buffers_fops);

	debugfs_create_file("stat", 0644, mdd->root, mdata,

			&mdss_debugfs_stats_fops);

	debugfs_create_file("danger_stat", 0644, mdd->root, mdata,

			&mdss_debugfs_danger_stats_fops);

	debugfs_create_file("safe_stat", 0644, mdd->root, mdata,

			&mdss_debugfs_safe_stats_fops);

	debugfs_create_bool("serialize_wait4pp", 0644, mdd->root,

		(u32 *)&mdata->serialize_wait4pp);

	debugfs_create_bool("enable_gate", 0644, mdd->root,

drivers/video/msm/mdss/mdss_mdp_debug.h

+8 −0
Original line number Diff line number Diff line
@@ -21,6 +21,14 @@ 
#include "mdss.h"

#include "mdss_mdp.h"



#define MDP_DANGER_SAFE_BIT_OFFSET	0

#define VIG_DANGER_SAFE_BIT_OFFSET	4

#define RGB_DANGER_SAFE_BIT_OFFSET	12

#define DMA_DANGER_SAFE_BIT_OFFSET	20

#define CURSOR_DANGER_SAFE_BIT_OFFSET	24



#define DANGER_SAFE_STATUS(X, Y) (((X) & (BIT(Y) | BIT((Y)+1))) >> (Y))



static inline const char *mdss_mdp_pipetype2str(u32 ptype)

{

	static const char const *strings[] = {

drivers/video/msm/mdss/mdss_mdp_hwio.h

+2 −0
Original line number Diff line number Diff line
@@ -51,6 +51,8 @@ 
#define MDSS_MDP_REG_VIDEO_INTF_UNDERFLOW_CTL		0x002E0

#define MDSS_MDP_REG_SPLIT_DISPLAY_EN			0x002F4

#define MDSS_MDP_REG_SPLIT_DISPLAY_UPPER_PIPE_CTRL	0x002F8

#define MDSS_MDP_DANGER_STATUS				0x00360

#define MDSS_MDP_SAFE_STATUS				0x00364

#define MDSS_MDP_REG_SPLIT_DISPLAY_LOWER_PIPE_CTRL	0x003F0

#define MDSS_MDP_REG_DCE_SEL				0x00450