Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "I Was Almost Tempted To Capitalise Every Word, but then I decided I
  couldn't read it myself!

  I've also got one pull request for the sti driver outstanding.  It
  relied on a commit in Greg's tree and I didn't find out in time, that
  commit is in your tree now so I might send that along once this is
  merged.

  I also had the accidental misfortune to have access to a Skylake on my
  desk for a few days, and I've had to encourage Intel to try harder,
  which seems to be happening now.

  Here is the main drm-next pull request for 4.4.

  Highlights:

  New driver:
        vc4 driver for the Rasberry Pi VPU.
        (From Eric Anholt at Broadcom.)

  Core:
        Atomic fbdev support
        Atomic helpers for runtime pm
        dp/aux i2c STATUS_UPDATE handling
        struct_mutex usage cleanups.
        Generic of probing support.

  Documentation:
        Kerneldoc for VGA switcheroo code.
        Rename to gpu instead of drm to reflect scope.

  i915:
        Skylake GuC firmware fixes
        HPD A support
        VBT backlight fallbacks
        Fastboot by default for some systems
        FBC work
        BXT/SKL workarounds
        Skylake deeper sleep state fixes

  amdgpu:
        Enable GPU scheduler by default
        New atombios opcodes
        GPUVM debugging options
        Stoney support.
        Fencing cleanups.

  radeon:
        More efficient CS checking

  nouveau:
        gk20a instance memory handling improvements.
        Improved PGOB detection and GK107 support
        Kepler GDDR5 PLL statbility improvement
        G8x/GT2xx reclock improvements
        new userspace API compatiblity fixes.

  virtio-gpu:
        Add 3D support - qemu 2.5 has it merged for it's gtk backend.

  msm:
        Initial msm88896 (snapdragon 8200)

  exynos:
        HDMI cleanups
        Enable mixer driver byt default
        Add DECON-TV support

  vmwgfx:
        Move to using memremap + fixes.

  rcar-du:
        Add support for R8A7793/4 DU

  armada:
        Remove support for non-component mode
        Improved plane handling
        Power savings while in DPMS off.

  tda998x:
        Remove unused slave encoder support
        Use more HDMI helpers
        Fix EDID read handling

  dwhdmi:
        Interlace video mode support for ipu-v3/dw_hdmi
        Hotplug state fixes
        Audio driver integration

  imx:
        More color formats support.

  tegra:
        Minor fixes/improvements"

[ Merge fixup: remove unused variable 'dev' that had all uses removed in
  commit 4e270f088011: "drm/gem: Drop struct_mutex requirement from
  drm_gem_mmap_obj" ]

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (764 commits)
  drm/vmwgfx: Relax irq locking somewhat
  drm/vmwgfx: Properly flush cursor updates and page-flips
  drm/i915/skl: disable display side power well support for now
  drm/i915: Extend DSL readout fix to BDW and SKL.
  drm/i915: Do graphics device reset under forcewake
  drm/i915: Skip fence installation for objects with rotated views (v4)
  vga_switcheroo: Drop client power state VGA_SWITCHEROO_INIT
  drm/amdgpu: group together common fence implementation
  drm/amdgpu: remove AMDGPU_FENCE_OWNER_MOVE
  drm/amdgpu: remove now unused fence functions
  drm/amdgpu: fix fence fallback check
  drm/amdgpu: fix stoping the scheduler timeout
  drm/amdgpu: cleanup on error in amdgpu_cs_ioctl()
  drm/i915: Fix locking around GuC firmware load
  drm/amdgpu: update Fiji's Golden setting
  drm/amdgpu: update Fiji's rev id
  drm/amdgpu: extract common code in vi_common_early_init
  drm/amd/scheduler: don't oops on failure to load
  drm/amdgpu: don't oops on failure to load (v2)
  drm/amdgpu: don't VT switch on suspend
  ...

1 files changed, 13 insertions, 30 deletions

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index c19e669ffe50..ce82f9c7df24 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1231,20 +1231,13 @@ static const struct dmi_system_id intel_no_opregion_vbt[] = {
 	{ }
 };
 
-static const struct bdb_header *validate_vbt(const void __iomem *_base,
+static const struct bdb_header *validate_vbt(const void *base,
 					     size_t size,
-					     const void __iomem *_vbt,
+					     const void *_vbt,
 					     const char *source)
 {
-	/*
-	 * This is the one place where we explicitly discard the address space
-	 * (__iomem) of the BIOS/VBT. (And this will cause a sparse complaint.)
-	 * From now on everything is based on 'base', and treated as regular
-	 * memory.
-	 */
-	const void *base = (const void *) _base;
-	size_t offset = _vbt - _base;
-	const struct vbt_header *vbt = base + offset;
+	size_t offset = _vbt - base;
+	const struct vbt_header *vbt = _vbt;
 	const struct bdb_header *bdb;
 
 	if (offset + sizeof(struct vbt_header) > size) {
@@ -1282,7 +1275,15 @@ static const struct bdb_header *find_vbt(void __iomem *bios, size_t size)
 	/* Scour memory looking for the VBT signature. */
 	for (i = 0; i + 4 < size; i++) {
 		if (ioread32(bios + i) == *((const u32 *) "$VBT")) {
-			bdb = validate_vbt(bios, size, bios + i, "PCI ROM");
+			/*
+			 * This is the one place where we explicitly discard the
+			 * address space (__iomem) of the BIOS/VBT. From now on
+			 * everything is based on 'base', and treated as regular
+			 * memory.
+			 */
+			void *_bios = (void __force *) bios;
+
+			bdb = validate_vbt(_bios, size, _bios + i, "PCI ROM");
 			break;
 		}
 	}
@@ -1350,21 +1351,3 @@ intel_parse_bios(struct drm_device *dev)
 
 	return 0;
 }
-
-/* Ensure that vital registers have been initialised, even if the BIOS
- * is absent or just failing to do its job.
- */
-void intel_setup_bios(struct drm_device *dev)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
-	 /* Set the Panel Power On/Off timings if uninitialized. */
-	if (!HAS_PCH_SPLIT(dev) &&
-	    I915_READ(PP_ON_DELAYS) == 0 && I915_READ(PP_OFF_DELAYS) == 0) {
-		/* Set T2 to 40ms and T5 to 200ms */
-		I915_WRITE(PP_ON_DELAYS, 0x019007d0);
-
-		/* Set T3 to 35ms and Tx to 200ms */
-		I915_WRITE(PP_OFF_DELAYS, 0x015e07d0);
-	}
-}