Signed-off-by: Vincent Abriou <vincent.abriou at st.com>
---
drivers/gpu/drm/sti/sti_gdp.c | 236 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 236 insertions(+)
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
index a6fba9c..8f0e89f 100644
--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -31,6 +31,23 @@
#define GDP_ARGB1555 0x06
#define GDP_ARGB4444 0x07
+#define GDP2STR(fmt) { GDP_ ## fmt, #fmt }
+
+static struct gdp_format_to_str {
+ int format;
+ char name[20];
+} gdp_format_to_str[] = {
+ GDP2STR(RGB565),
+ GDP2STR(RGB888),
+ GDP2STR(RGB888_32),
+ GDP2STR(XBGR8888),
+ GDP2STR(ARGB8565),
+ GDP2STR(ARGB8888),
+ GDP2STR(ABGR8888),
+ GDP2STR(ARGB1555),
+ GDP2STR(ARGB4444)
+ };
+
#define GAM_GDP_CTL_OFFSET 0x00
#define GAM_GDP_AGC_OFFSET 0x04
#define GAM_GDP_VPO_OFFSET 0x0C
@@ -119,6 +136,222 @@ static const uint32_t gdp_supported_formats[] = {
DRM_FORMAT_RGB888,
};
+#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
+ readl(gdp->regs + reg ## _OFFSET))
+
+static void gdp_dbg_ctl(struct seq_file *s, int val)
+{
+ int i;
+
+ seq_puts(s, "\tColor:");
+ for (i = 0; i < ARRAY_SIZE(gdp_format_to_str); i++) {
+ if (gdp_format_to_str[i].format == (val & 0x1F)) {
+ seq_printf(s, gdp_format_to_str[i].name);
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(gdp_format_to_str))
+ seq_puts(s, "<UNKNOWN>");
+
+ seq_printf(s, "\tWaitNextVsync:%d", val & WAIT_NEXT_VSYNC ? 1 : 0);
+}
+
+static void gdp_dbg_vpo(struct seq_file *s, int val)
+{
+ seq_printf(s, "\txdo:%4d\tydo:%4d", val & 0xFFFF, (val >> 16) & 0xFFFF);
+}
+
+static void gdp_dbg_vps(struct seq_file *s, int val)
+{
+ seq_printf(s, "\txds:%4d\tyds:%4d", val & 0xFFFF, (val >> 16) & 0xFFFF);
+}
+
+static void gdp_dbg_size(struct seq_file *s, int val)
+{
+ seq_printf(s, "\t%d x %d", val & 0xFFFF, (val >> 16) & 0xFFFF);
+}
+
+static void gdp_dbg_nvn(struct seq_file *s, struct sti_gdp *gdp, int val)
+{
+ void *base = NULL;
+ unsigned int i;
+
+ for (i = 0; i < GDP_NODE_NB_BANK; i++) {
+ if (gdp->node_list[i].top_field_paddr == val) {
+ base = gdp->node_list[i].top_field;
+ break;
+ }
+ if (gdp->node_list[i].btm_field_paddr == val) {
+ base = gdp->node_list[i].btm_field;
+ break;
+ }
+ }
+
+ if (base)
+ seq_printf(s, "\tVirt @: %p", base);
+}
+
+static void gdp_dbg_ppt(struct seq_file *s, int val)
+{
+ if (val & GAM_GDP_PPT_IGNORE)
+ seq_puts(s, "\tNot displayed on mixer!");
+}
+
+static void gdp_dbg_mst(struct seq_file *s, int val)
+{
+ if (val & 1)
+ seq_puts(s, "\tBUFFER UNDERFLOW!");
+}
+
+static int gdp_dbg_show(struct seq_file *s, void *data)
+{
+ struct drm_info_node *node = s->private;
+ struct sti_gdp *gdp = (struct sti_gdp *)node->info_ent->data;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_plane *drm_plane = &gdp->plane.drm_plane;
+ struct drm_crtc *crtc = drm_plane->crtc;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ seq_printf(s, "%s: (vaddr = 0x%p)",
+ sti_plane_to_str(&gdp->plane), gdp->regs);
+
+ DBGFS_DUMP(GAM_GDP_CTL);
+ gdp_dbg_ctl(s, readl(gdp->regs + GAM_GDP_CTL_OFFSET));
+ DBGFS_DUMP(GAM_GDP_AGC);
+ DBGFS_DUMP(GAM_GDP_VPO);
+ gdp_dbg_vpo(s, readl(gdp->regs + GAM_GDP_VPO_OFFSET));
+ DBGFS_DUMP(GAM_GDP_VPS);
+ gdp_dbg_vps(s, readl(gdp->regs + GAM_GDP_VPS_OFFSET));
+ DBGFS_DUMP(GAM_GDP_PML);
+ DBGFS_DUMP(GAM_GDP_PMP);
+ DBGFS_DUMP(GAM_GDP_SIZE);
+ gdp_dbg_size(s, readl(gdp->regs + GAM_GDP_SIZE_OFFSET));
+ DBGFS_DUMP(GAM_GDP_NVN);
+ gdp_dbg_nvn(s, gdp, readl(gdp->regs + GAM_GDP_NVN_OFFSET));
+ DBGFS_DUMP(GAM_GDP_KEY1);
+ DBGFS_DUMP(GAM_GDP_KEY2);
+ DBGFS_DUMP(GAM_GDP_PPT);
+ gdp_dbg_ppt(s, readl(gdp->regs + GAM_GDP_PPT_OFFSET));
+ DBGFS_DUMP(GAM_GDP_CML);
+ DBGFS_DUMP(GAM_GDP_MST);
+ gdp_dbg_mst(s, readl(gdp->regs + GAM_GDP_MST_OFFSET));
+
+ seq_puts(s, "\n\n");
+ if (!crtc)
+ seq_puts(s, " Not connected to any DRM CRTC\n");
+ else
+ seq_printf(s, " Connected to DRM CRTC #%d (%s)\n",
+ crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)));
+
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+static void gdp_node_dump_node(struct seq_file *s, struct sti_gdp_node *node)
+{
+ seq_printf(s, "\t@:0x%p", node);
+ seq_printf(s, "\n\tCTL 0x%08X", node->gam_gdp_ctl);
+ gdp_dbg_ctl(s, node->gam_gdp_ctl);
+ seq_printf(s, "\n\tAGC 0x%08X", node->gam_gdp_agc);
+ seq_printf(s, "\n\tVPO 0x%08X", node->gam_gdp_vpo);
+ gdp_dbg_vpo(s, node->gam_gdp_vpo);
+ seq_printf(s, "\n\tVPS 0x%08X", node->gam_gdp_vps);
+ gdp_dbg_vps(s, node->gam_gdp_vps);
+ seq_printf(s, "\n\tPML 0x%08X", node->gam_gdp_pml);
+ seq_printf(s, "\n\tPMP 0x%08X", node->gam_gdp_pmp);
+ seq_printf(s, "\n\tSIZE 0x%08X", node->gam_gdp_size);
+ gdp_dbg_size(s, node->gam_gdp_size);
+ seq_printf(s, "\n\tNVN 0x%08X", node->gam_gdp_nvn);
+ seq_printf(s, "\n\tKEY1 0x%08X", node->gam_gdp_key1);
+ seq_printf(s, "\n\tKEY2 0x%08X", node->gam_gdp_key2);
+ seq_printf(s, "\n\tPPT 0x%08X", node->gam_gdp_ppt);
+ gdp_dbg_ppt(s, node->gam_gdp_ppt);
+ seq_printf(s, "\n\tCML 0x%08X", node->gam_gdp_cml);
+ seq_puts(s, "\n");
+}
+
+static int gdp_node_dbg_show(struct seq_file *s, void *arg)
+{
+ struct drm_info_node *node = s->private;
+ struct sti_gdp *gdp = (struct sti_gdp *)node->info_ent->data;
+ struct drm_device *dev = node->minor->dev;
+ unsigned int b;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ for (b = 0; b < GDP_NODE_NB_BANK; b++) {
+ seq_printf(s, "\n%s[%d].top", sti_plane_to_str(&gdp->plane), b);
+ gdp_node_dump_node(s, gdp->node_list[b].top_field);
+ seq_printf(s, "\n%s[%d].btm", sti_plane_to_str(&gdp->plane), b);
+ gdp_node_dump_node(s, gdp->node_list[b].btm_field);
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+ return 0;
+}
+
+static struct drm_info_list gdp0_debugfs_files[] = {
+ { "gdp0", gdp_dbg_show, 0, NULL },
+ { "gdp0_node", gdp_node_dbg_show, 0, NULL },
+};
+
+static struct drm_info_list gdp1_debugfs_files[] = {
+ { "gdp1", gdp_dbg_show, 0, NULL },
+ { "gdp1_node", gdp_node_dbg_show, 0, NULL },
+};
+
+static struct drm_info_list gdp2_debugfs_files[] = {
+ { "gdp2", gdp_dbg_show, 0, NULL },
+ { "gdp2_node", gdp_node_dbg_show, 0, NULL },
+};
+
+static struct drm_info_list gdp3_debugfs_files[] = {
+ { "gdp3", gdp_dbg_show, 0, NULL },
+ { "gdp3_node", gdp_node_dbg_show, 0, NULL },
+};
+
+static int gdp_debugfs_init(struct sti_gdp *gdp, struct drm_minor *minor)
+{
+ unsigned int i;
+ struct drm_info_list *gdp_debugfs_files;
+ int nb_files;
+
+ switch (gdp->plane.desc) {
+ case STI_GDP_0:
+ gdp_debugfs_files = gdp0_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp0_debugfs_files);
+ break;
+ case STI_GDP_1:
+ gdp_debugfs_files = gdp1_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp1_debugfs_files);
+ break;
+ case STI_GDP_2:
+ gdp_debugfs_files = gdp2_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp2_debugfs_files);
+ break;
+ case STI_GDP_3:
+ gdp_debugfs_files = gdp3_debugfs_files;
+ nb_files = ARRAY_SIZE(gdp3_debugfs_files);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ for (i = 0; i < nb_files; i++)
+ gdp_debugfs_files[i].data = gdp;
+
+ return drm_debugfs_create_files(gdp_debugfs_files,
+ nb_files,
+ minor->debugfs_root, minor);
+}
+
static int sti_gdp_fourcc2format(int fourcc)
{
switch (fourcc) {
@@ -684,6 +917,9 @@ struct drm_plane *sti_gdp_create(struct drm_device *drm_dev,
sti_plane_init_property(&gdp->plane, type);
+ if (gdp_debugfs_init(gdp, drm_dev->primary))
+ DRM_ERROR("GDP debugfs setup failed\n");
+
return &gdp->plane.drm_plane;
err:
--
1.9.1
