tools/intel_display_poller: Add a new tool that will poll various display registers

intel_poller can be used to poll various display registers
(IIR,scanline/pixel/flip/frame counter, live address, etc.).

It can be used to determine eg. at which scanline or pixel count certain
events occur.

v2: s/intel_poller/intel_display_poller/

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

lib/intel_reg.h

@@ -2248,7 +2248,11 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 #define PIPE_PIXEL_MASK		0x00ffffff
 #define PIPE_PIXEL_SHIFT	0
-
+/*
+ * g4x+ frame/flip counters
+ */
+#define PIPEAFRMCOUNT_G4X	0x70040
+#define PIPEAFLIPCOUNT_G4X	0x70044
 /*
  * Computing GMCH M and N values.
  *
@@ -2296,20 +2300,24 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define PIPEBSTAT		0x71024
 #define PIPEBFRAMEHIGH		0x71040
 #define PIPEBFRAMEPIXEL		0x71044
+#define PIPEBFRMCOUNT_G4X	0x71040
+#define PIPEBFLIPCOUNT_G4X	0x71044
 
 #define PIPEB_GMCH_DATA_M	0x71050
 #define PIPEB_GMCH_DATA_N	0x71054
 #define PIPEB_DP_LINK_M		0x71060
 #define PIPEB_DP_LINK_N		0x71064
 
+#define PIPEC_DSL		0x72000
+
 #define PIPECCONF 		0x72008
 
 #define PIPECGCMAXRED		0x72010
 #define PIPECGCMAXGREEN		0x72014
 #define PIPECGCMAXBLUE		0x72018
 #define PIPECSTAT		0x72024
-#define PIPECFRAMEHIGH		0x72040
-#define PIPECFRAMEPIXEL		0x72044
+#define PIPECFRMCOUNT_G4X	0x72040
+#define PIPECFLIPCOUNT_G4X	0x72044
 
 #define PIPEC_GMCH_DATA_M	0x72050
 #define PIPEC_GMCH_DATA_N	0x72054
@@ -2370,12 +2378,15 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #define DSPASURF		0x7019C
 #define DSPATILEOFF		0x701A4
+#define DSPASURFLIVE		0x701AC
 
 #define DSPBSURF		0x7119C
 #define DSPBTILEOFF		0x711A4
+#define DSPBSURFLIVE		0x711AC
 
 #define DSPCSURF		0x7219C
 #define DSPCTILEOFF		0x721A4
+#define DSPCSURFLIVE		0x721AC
 
 #define VGACNTRL		0x71400
 # define VGA_DISP_DISABLE			(1 << 31)
@@ -2879,6 +2890,11 @@ typedef enum {
 #define DEIIR	0x44008
 #define DEIER	0x4400c
 
+#define GEN8_DE_PIPE_ISR(pipe) (0x44400 + 0x10 * (pipe))
+#define GEN8_DE_PIPE_IMR(pipe) (0x44404 + 0x10 * (pipe))
+#define GEN8_DE_PIPE_IIR(pipe) (0x44408 + 0x10 * (pipe))
+#define GEN8_DE_PIPE_IER(pipe) (0x4440c + 0x10 * (pipe))
+
 /* GT interrupt */
 #define GT_SYNC_STATUS		(1 << 2)
 #define GT_USER_INTERRUPT	(1 << 0)

tools/Makefile.sources

@@ -12,6 +12,7 @@ bin_PROGRAMS = 				\
 	intel_iosf_sb_write		\
 	intel_opregion_decode		\
 	intel_perf_counters		\
+	intel_display_poller		\
 	intel_stepping 			\
 	intel_reg_checker 		\
 	intel_reg_dumper 		\