3rdparty/lib{hwbase,gfxinit}: Update to latest master

Simplifies our C interface function gma_gfxinit(), due to the following
changes:

* *libgfxinit* knows about the underlying PCI device now and can
  probe MMIO addresses by itself.
* The framebuffer mapping is now completely handled inside the
  library where we validate that we neither overflow
  - the stolen memory,
  - the GTT address space, the GTT itself nor
  - the aperture window (i.e. resource2 of the PCI device)
    that we use to access the framebuffer.

Other changes:

* Fixes and a quirk for DP training.
* Fix for DP-VGA adapters that report an analog display in EDID.
* Fixes for Skylake support with coreboot.
* DDI Buffer drive-strength configuration for Haswell, Broadwell and
  Skylake.
* `gfx_test` can now be run from X windows (with glitches).
* Compatibility with GCC 7 and SPARK GPL 2017.

TEST=Booted lenovo/t420 and verified that everything works as usual.

Change-Id: I001ba973d864811503410579fd7ad55ab8612759
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/20606
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

3rdparty/libgfxinit

@@ -1 +1 @@
-Subproject commit fb4f8ce26a05c2304367c066b806519941658373
+Subproject commit 3a0e2a08f5489f3bb5c6e9f97b903e6e10c31a6c

3rdparty/libhwbase

@@ -1 +1 @@
-Subproject commit 3bf6759dc09d27c06b3533fd536e667356853d3d
+Subproject commit 66859712e4817288591908d737dbf41ddea31c3a

Documentation/gfx/libgfxinit.md

@@ -39,22 +39,13 @@ GMA: Hook-up in Chipset Initialization
 Both configurations described above implement a procedure
 `GMA.gfxinit()`:
 
-    procedure gfxinit
+    procedure gfxinit (lightup_ok : out int);
-      (mmio_base   : in     word64;
-       linear_fb   : in     word64;
-       phys_fb     : in     word32;
-       lightup_ok  :    out int);
 
 This procedure is exported as the C function `gma_gfxinit()` as
 follows:
 
-    void gma_gfxinit(uint64_t mmio_base, uint64_t linear_fb,
+    void gma_gfxinit(int *lightup_ok);
-                     uint32_t phys_fb, int *lightup_ok);
 
-* `mmio_base`:  the base address of the GMA's MMIO resource
-* `linear_fb`:  the base address of the GMA's GTT window resource
-* `phys_fb`:    the physical address where the framebuffer should be
-                stored (usually the GMA's stolen memory)
 * `lightup_ok`: returns whether the initialization succeeded `1` or
                 failed `0`. Currently, only the case that no display
                 could be found counts as failure. A failure at a la-

src/drivers/intel/gma/gma.ads

@@ -6,11 +6,7 @@ use HW;
 package GMA
 is
 
-   procedure gfxinit
+   procedure gfxinit (lightup_ok : out Interfaces.C.int);
-     (mmio_base   : in     word64;
-      linear_fb   : in     word64;
-      phys_fb     : in     word32;
-      lightup_ok  :    out Interfaces.C.int);
    pragma Export (C, gfxinit, "gma_gfxinit");
 
    ----------------------------------------------------------------------------

src/drivers/intel/gma/hires_fb/gma.adb

@@ -50,13 +50,10 @@ is
 
    ----------------------------------------------------------------------------
 
-   procedure gfxinit
+   procedure gfxinit (lightup_ok : out Interfaces.C.int)
-     (mmio_base   : in     word64;
-      linear_fb   : in     word64;
-      phys_fb     : in     word32;
-      lightup_ok  :    out Interfaces.C.int)
    is
       use type pos32;
+      use type word64;
 
       ports : Port_List;
       configs : Pipe_Configs;
@@ -68,9 +65,7 @@ is
    begin
       lightup_ok := 0;
 
-      HW.GFX.GMA.Initialize
+      HW.GFX.GMA.Initialize (Success => success);
-        (MMIO_Base   => mmio_base,
-         Success     => success);
 
       if success then
          ports := Mainboard.ports;
@@ -98,15 +93,19 @@ is
 
             HW.GFX.GMA.Dump_Configs (configs);
 
-            HW.GFX.GMA.Setup_Default_GTT (fb, phys_fb);
+            HW.GFX.GMA.Setup_Default_FB
-            HW.GFX.Framebuffer_Filler.Fill (linear_fb, fb);
+              (FB       => fb,
+               Clear    => true,
+               Success  => success);
 
+            if success then
                HW.GFX.GMA.Update_Outputs (configs);
 
-            linear_fb_addr := linear_fb;
+               HW.GFX.GMA.Map_Linear_FB (linear_fb_addr, fb);
-            fb_valid := true;
+               fb_valid := linear_fb_addr /= 0;
 
-            lightup_ok := 1;
+               lightup_ok := (if fb_valid then 1 else 0);
+            end if;
          end if;
       end if;
    end gfxinit;

src/drivers/intel/gma/libgfxinit.h

@@ -14,6 +14,6 @@
 #ifndef DRIVERS_INTEL_GMA_LIBGFXINIT_H
 #define DRIVERS_INTEL_GMA_LIBGFXINIT_H
 
-void gma_gfxinit(u64 mmio_base, u64 linear_fb, u32 phys_fb, int *success);
+void gma_gfxinit(int *lightup_ok);
 
 #endif

src/drivers/intel/gma/text_fb/gma.adb

@@ -22,11 +22,7 @@ is
 
    ----------------------------------------------------------------------------
 
-   procedure gfxinit
+   procedure gfxinit (lightup_ok : out Interfaces.C.int)
-     (mmio_base   : in     word64;
-      linear_fb   : in     word64;
-      phys_fb     : in     word32;
-      lightup_ok  :    out Interfaces.C.int)
    is
       ports : Port_List;
       configs : Pipe_Configs;
@@ -41,9 +37,7 @@ is
    begin
       lightup_ok := 0;
 
-      HW.GFX.GMA.Initialize
+      HW.GFX.GMA.Initialize (Success => success);
-        (MMIO_Base   => mmio_base,
-         Success     => success);
 
       if success then
          ports := Mainboard.ports;

src/northbridge/intel/haswell/gma.c

@@ -456,12 +456,6 @@ static void gma_func0_init(struct device *dev)
 {
 	int lightup_ok = 0;
 	u32 reg32;
-	u64 physbase;
-	const struct resource *const linearfb_res =
-		find_resource(dev, PCI_BASE_ADDRESS_2);
-
-	if (!linearfb_res || !linearfb_res->base)
-		return;
 
 	/* IGD needs to be Bus Master */
 	reg32 = pci_read_config32(dev, PCI_COMMAND);
@@ -476,9 +470,7 @@ static void gma_func0_init(struct device *dev)
 
 	if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
 		printk(BIOS_SPEW, "NATIVE graphics, run native enable\n");
-		physbase = pci_read_config32(dev, 0x5c) & ~0xf;
+		gma_gfxinit(&lightup_ok);
-		gma_gfxinit(gtt_res->base, linearfb_res->base,
-			physbase, &lightup_ok);
 		gfx_set_init_done(1);
 	}
 

src/northbridge/intel/nehalem/gma.c

@@ -1061,8 +1061,7 @@ static void gma_func0_init(struct device *dev)
 			       gtt_res->base);
 			if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
 				int lightup_ok;
-				gma_gfxinit(gtt_res->base, lfb_res->base,
+				gma_gfxinit(&lightup_ok);
-					    physbase, &lightup_ok);
 			} else {
 				intel_gma_init(conf, res2mmio(gtt_res, 0, 0),
 					physbase, pio_res->base, lfb_res->base);

src/northbridge/intel/sandybridge/gma.c

@@ -648,8 +648,7 @@ static void gma_func0_init(struct device *dev)
 
 		int lightup_ok;
 		if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
-			gma_gfxinit((uintptr_t)mmiobase, graphics_base,
+			gma_gfxinit(&lightup_ok);
-				    physbase, &lightup_ok);
 		} else {
 			lightup_ok = i915lightup_sandy(&conf->gfx, physbase,
 					iobase, mmiobase, graphics_base);