igfx: work in progress intel graphics driver

this driver can modeset lvds on x200s and x230.
everything else is completely untested.
no hardware cursor implemented.
no vgadb entries are provided.

sys/src/9/pc/pccpuf

@@ -113,6 +113,7 @@ misc
 	vgageode	+cur
 	vgahiqvideo	+cur
 	vgai81x		+cur
+	vgaigfx
 	vgamach64xx	+cur
 	vgamga2164w	+cur
 	vgamga4xx	+cur

sys/src/9/pc/pcf

@@ -114,6 +114,7 @@ misc
 	vgageode	+cur
 	vgahiqvideo	+cur
 	vgai81x		+cur
+	vgaigfx
 	vgamach64xx	+cur
 	vgamga2164w	+cur
 	vgamga4xx	+cur

sys/src/9/pc64/pc64

@@ -124,6 +124,7 @@ misc
 #	vgatvp3020	=cur
 #	vgatvp3026	=cur
 	vgavesa
+	vgaigfx
 #	vgavmware	+cur
 
 ip

sys/src/cmd/aux/vga/data.c

@@ -87,6 +87,7 @@ Ctlr* ctlrs[] = {
 	&w30c516,				/* ctlr */
 	&mga4xx,
 	&mga4xxhwgc,
+	&igfx,					/* ctlr */
 	0,
 };
 

sys/src/cmd/aux/vga/mkfile

@@ -62,6 +62,7 @@ OFILES=\
 	vision968.$O\
 	vmware.$O\
 	w30c516.$O\
+	igfx.$O\
 
 HFILES=\
 	pci.h\
@@ -77,4 +78,5 @@ UPDATE=\
 
 </sys/src/cmd/mkone
 
-nvidia.$O:	riva_tbl.h
+geode.$O:	geode_modes.h
+radeon.$O:	radeon.h

sys/src/cmd/aux/vga/vga.h

@@ -306,10 +306,12 @@ extern uvlong rdmsr(long);
 extern void wrmsr(long, uvlong);
 
 /* geode.c */
-
 extern Ctlr geode;
 extern Ctlr geodehwgc;
 
+/* igfx.c */
+extern Ctlr igfx;
+
 /* mach32.c */
 extern Ctlr mach32;