[Intel-gfx] [PATCH 2/3] intel_reg_dumper: Dump FDI_RX_DEBUG registers

[Damien Lespiau]

From: Damien Lespiau <damien.lespiau at intel.com>

This reports which lanes are locked.

Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
---
 lib/intel_reg.h          |  8 ++++++++
 tools/intel_reg_dumper.c | 21 +++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/lib/intel_reg.h b/lib/intel_reg.h
index ffded64..0796cb5 100644
--- a/lib/intel_reg.h
+++ b/lib/intel_reg.h
@@ -3381,6 +3381,14 @@ typedef enum {
 #define FDI_RXC_TUSIZE1		0xf2030
 #define FDI_RXC_TUSIZE2		0xf2038
 
+#define FDI_RXA_DEBUG		0xf0020
+#define FDI_RXB_DEBUG		0xf1020
+#define FDI_RXC_DEBUG		0xf2020
+#define  FDI_RX_DEBUG_L3_BIT_LOCKED		(1<<29)
+#define  FDI_RX_DEBUG_L2_BIT_LOCKED		(1<<28)
+#define  FDI_RX_DEBUG_L1_BIT_LOCKED		(1<<27)
+#define  FDI_RX_DEBUG_L0_BIT_LOCKED		(1<<26)
+
 /* FDI_RX interrupt register format */
 #define FDI_RX_INTER_LANE_ALIGN		(1<<10)
 #define FDI_RX_SYMBOL_LOCK		(1<<9) /* train 2 */
diff --git a/tools/intel_reg_dumper.c b/tools/intel_reg_dumper.c
index f6392e2..7f6eaaa 100644
--- a/tools/intel_reg_dumper.c
+++ b/tools/intel_reg_dumper.c
@@ -1310,6 +1310,23 @@ DEBUGSTRING(ironlake_debug_fdi_rx_misc)
 	snprintf(result, len, "FDI Delay %d", val & ((1 << 13) - 1));
 }
 
+DEBUGSTRING(ironlake_debug_fdi_rx_debug)
+{
+	int l0_locked = val & FDI_RX_DEBUG_L0_BIT_LOCKED;
+	int l1_locked = val & FDI_RX_DEBUG_L1_BIT_LOCKED;
+	int l2_locked = val & FDI_RX_DEBUG_L2_BIT_LOCKED;
+	int l3_locked = val & FDI_RX_DEBUG_L3_BIT_LOCKED;
+	const char *none = "";
+
+	if (l0_locked + l1_locked + l2_locked + l3_locked == 0)
+		none = "none";
+
+	snprintf(result, len, "bit locked lanes: %s%s%s%s%s",
+		 l0_locked ? "0 " : "", l1_locked ? "1 " : "",
+		 l2_locked ? "2 " : "", l3_locked ? "3 " : "",
+		 none);
+}
+
 DEBUGSTRING(ironlake_debug_transconf)
 {
 	const char *enable = val & TRANS_ENABLE ? "enable" : "disable";
@@ -1793,6 +1810,10 @@ static struct reg_debug ironlake_debug_regs[] = {
 	DEFINEREG(FDI_RXB_IIR),
 	DEFINEREG(FDI_RXB_IMR),
 
+	DEFINEREG2(FDI_RXA_DEBUG, ironlake_debug_fdi_rx_debug),
+	DEFINEREG2(FDI_RXB_DEBUG, ironlake_debug_fdi_rx_debug),
+	DEFINEREG2(FDI_RXC_DEBUG, ironlake_debug_fdi_rx_debug),
+
 	DEFINEREG2(PCH_ADPA, i830_debug_adpa),
 	DEFINEREG2(HDMIB, ironlake_debug_hdmi),
 	DEFINEREG2(HDMIC, ironlake_debug_hdmi),
-- 
1.7.11.4