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Commit dab16336 authored by Thierry Reding's avatar Thierry Reding
Browse files

drm/tegra: sor: Dump registers via debugfs 



Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 28fe2076

drivers/gpu/drm/tegra/sor.c

+165 −6
Original line number Diff line number Diff line
@@ -41,6 +41,8 @@ struct tegra_sor { 
	struct mutex lock;

	bool enabled;



	struct drm_info_list *debugfs_files;

	struct drm_minor *minor;

	struct dentry *debugfs;

};
@@ -673,38 +675,195 @@ static const struct file_operations tegra_sor_crc_fops = { 
	.release = tegra_sor_crc_release,

};



static int tegra_sor_show_regs(struct seq_file *s, void *data)

{

	struct drm_info_node *node = s->private;

	struct tegra_sor *sor = node->info_ent->data;



#define DUMP_REG(name)						\

	seq_printf(s, "%-38s %#05x %08x\n", #name, name,	\

		   tegra_sor_readl(sor, name))



	DUMP_REG(SOR_CTXSW);

	DUMP_REG(SOR_SUPER_STATE_0);

	DUMP_REG(SOR_SUPER_STATE_1);

	DUMP_REG(SOR_STATE_0);

	DUMP_REG(SOR_STATE_1);

	DUMP_REG(SOR_HEAD_STATE_0(0));

	DUMP_REG(SOR_HEAD_STATE_0(1));

	DUMP_REG(SOR_HEAD_STATE_1(0));

	DUMP_REG(SOR_HEAD_STATE_1(1));

	DUMP_REG(SOR_HEAD_STATE_2(0));

	DUMP_REG(SOR_HEAD_STATE_2(1));

	DUMP_REG(SOR_HEAD_STATE_3(0));

	DUMP_REG(SOR_HEAD_STATE_3(1));

	DUMP_REG(SOR_HEAD_STATE_4(0));

	DUMP_REG(SOR_HEAD_STATE_4(1));

	DUMP_REG(SOR_HEAD_STATE_5(0));

	DUMP_REG(SOR_HEAD_STATE_5(1));

	DUMP_REG(SOR_CRC_CNTRL);

	DUMP_REG(SOR_DP_DEBUG_MVID);

	DUMP_REG(SOR_CLK_CNTRL);

	DUMP_REG(SOR_CAP);

	DUMP_REG(SOR_PWR);

	DUMP_REG(SOR_TEST);

	DUMP_REG(SOR_PLL_0);

	DUMP_REG(SOR_PLL_1);

	DUMP_REG(SOR_PLL_2);

	DUMP_REG(SOR_PLL_3);

	DUMP_REG(SOR_CSTM);

	DUMP_REG(SOR_LVDS);

	DUMP_REG(SOR_CRC_A);

	DUMP_REG(SOR_CRC_B);

	DUMP_REG(SOR_BLANK);

	DUMP_REG(SOR_SEQ_CTL);

	DUMP_REG(SOR_LANE_SEQ_CTL);

	DUMP_REG(SOR_SEQ_INST(0));

	DUMP_REG(SOR_SEQ_INST(1));

	DUMP_REG(SOR_SEQ_INST(2));

	DUMP_REG(SOR_SEQ_INST(3));

	DUMP_REG(SOR_SEQ_INST(4));

	DUMP_REG(SOR_SEQ_INST(5));

	DUMP_REG(SOR_SEQ_INST(6));

	DUMP_REG(SOR_SEQ_INST(7));

	DUMP_REG(SOR_SEQ_INST(8));

	DUMP_REG(SOR_SEQ_INST(9));

	DUMP_REG(SOR_SEQ_INST(10));

	DUMP_REG(SOR_SEQ_INST(11));

	DUMP_REG(SOR_SEQ_INST(12));

	DUMP_REG(SOR_SEQ_INST(13));

	DUMP_REG(SOR_SEQ_INST(14));

	DUMP_REG(SOR_SEQ_INST(15));

	DUMP_REG(SOR_PWM_DIV);

	DUMP_REG(SOR_PWM_CTL);

	DUMP_REG(SOR_VCRC_A_0);

	DUMP_REG(SOR_VCRC_A_1);

	DUMP_REG(SOR_VCRC_B_0);

	DUMP_REG(SOR_VCRC_B_1);

	DUMP_REG(SOR_CCRC_A_0);

	DUMP_REG(SOR_CCRC_A_1);

	DUMP_REG(SOR_CCRC_B_0);

	DUMP_REG(SOR_CCRC_B_1);

	DUMP_REG(SOR_EDATA_A_0);

	DUMP_REG(SOR_EDATA_A_1);

	DUMP_REG(SOR_EDATA_B_0);

	DUMP_REG(SOR_EDATA_B_1);

	DUMP_REG(SOR_COUNT_A_0);

	DUMP_REG(SOR_COUNT_A_1);

	DUMP_REG(SOR_COUNT_B_0);

	DUMP_REG(SOR_COUNT_B_1);

	DUMP_REG(SOR_DEBUG_A_0);

	DUMP_REG(SOR_DEBUG_A_1);

	DUMP_REG(SOR_DEBUG_B_0);

	DUMP_REG(SOR_DEBUG_B_1);

	DUMP_REG(SOR_TRIG);

	DUMP_REG(SOR_MSCHECK);

	DUMP_REG(SOR_XBAR_CTRL);

	DUMP_REG(SOR_XBAR_POL);

	DUMP_REG(SOR_DP_LINKCTL_0);

	DUMP_REG(SOR_DP_LINKCTL_1);

	DUMP_REG(SOR_LANE_DRIVE_CURRENT_0);

	DUMP_REG(SOR_LANE_DRIVE_CURRENT_1);

	DUMP_REG(SOR_LANE4_DRIVE_CURRENT_0);

	DUMP_REG(SOR_LANE4_DRIVE_CURRENT_1);

	DUMP_REG(SOR_LANE_PREEMPHASIS_0);

	DUMP_REG(SOR_LANE_PREEMPHASIS_1);

	DUMP_REG(SOR_LANE4_PREEMPHASIS_0);

	DUMP_REG(SOR_LANE4_PREEMPHASIS_1);

	DUMP_REG(SOR_LANE_POST_CURSOR_0);

	DUMP_REG(SOR_LANE_POST_CURSOR_1);

	DUMP_REG(SOR_DP_CONFIG_0);

	DUMP_REG(SOR_DP_CONFIG_1);

	DUMP_REG(SOR_DP_MN_0);

	DUMP_REG(SOR_DP_MN_1);

	DUMP_REG(SOR_DP_PADCTL_0);

	DUMP_REG(SOR_DP_PADCTL_1);

	DUMP_REG(SOR_DP_DEBUG_0);

	DUMP_REG(SOR_DP_DEBUG_1);

	DUMP_REG(SOR_DP_SPARE_0);

	DUMP_REG(SOR_DP_SPARE_1);

	DUMP_REG(SOR_DP_AUDIO_CTRL);

	DUMP_REG(SOR_DP_AUDIO_HBLANK_SYMBOLS);

	DUMP_REG(SOR_DP_AUDIO_VBLANK_SYMBOLS);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_HEADER);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_SUBPACK_0);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_SUBPACK_1);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_SUBPACK_2);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_SUBPACK_3);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_SUBPACK_4);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_SUBPACK_5);

	DUMP_REG(SOR_DP_GENERIC_INFOFRAME_SUBPACK_6);

	DUMP_REG(SOR_DP_TPG);

	DUMP_REG(SOR_DP_TPG_CONFIG);

	DUMP_REG(SOR_DP_LQ_CSTM_0);

	DUMP_REG(SOR_DP_LQ_CSTM_1);

	DUMP_REG(SOR_DP_LQ_CSTM_2);



#undef DUMP_REG



	return 0;

}



static const struct drm_info_list debugfs_files[] = {

	{ "regs", tegra_sor_show_regs, 0, NULL },

};



static int tegra_sor_debugfs_init(struct tegra_sor *sor,

				  struct drm_minor *minor)

{

	struct dentry *entry;

	unsigned int i;

	int err = 0;



	sor->debugfs = debugfs_create_dir("sor", minor->debugfs_root);

	if (!sor->debugfs)

		return -ENOMEM;



	sor->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files),

				     GFP_KERNEL);

	if (!sor->debugfs_files) {

		err = -ENOMEM;

		goto remove;

	}



	for (i = 0; i < ARRAY_SIZE(debugfs_files); i++)

		sor->debugfs_files[i].data = sor;



	err = drm_debugfs_create_files(sor->debugfs_files,

				       ARRAY_SIZE(debugfs_files),

				       sor->debugfs, minor);

	if (err < 0)

		goto free;



	entry = debugfs_create_file("crc", 0644, sor->debugfs, sor,

				    &tegra_sor_crc_fops);

	if (!entry) {

		dev_err(sor->dev,

			"cannot create /sys/kernel/debug/dri/%s/sor/crc\n",

			minor->debugfs_root->d_name.name);

		err = -ENOMEM;

		goto remove;

		goto free;

	}



	return err;



free:

	kfree(sor->debugfs_files);

	sor->debugfs_files = NULL;

remove:

	debugfs_remove(sor->debugfs);

	debugfs_remove_recursive(sor->debugfs);

	sor->debugfs = NULL;

	return err;

}



static void tegra_sor_debugfs_exit(struct tegra_sor *sor)

{

	debugfs_remove_recursive(sor->debugfs);

	drm_debugfs_remove_files(sor->debugfs_files, ARRAY_SIZE(debugfs_files),

				 sor->minor);

	sor->minor = NULL;



	kfree(sor->debugfs_files);

	sor->debugfs = NULL;



	debugfs_remove_recursive(sor->debugfs);

	sor->debugfs_files = NULL;

}



static void tegra_sor_connector_dpms(struct drm_connector *connector, int mode)