From dab163366a2a0f134cfa13a64ab750945648a18a Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 26 Jan 2015 16:04:08 +0100 Subject: [PATCH] drm/tegra: sor: Dump registers via debugfs Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/sor.c | 171 ++++++++++++++++++++++++++++++++++-- 1 file changed, 165 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c index 59b8aec1aeae..41c5a6ed2c36 100644 --- a/drivers/gpu/drm/tegra/sor.c +++ b/drivers/gpu/drm/tegra/sor.c @@ -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) -- 2.20.1