Merge tag 'drm-misc-next-2017-03-31' of git://anongit.freedesktop.org…

…/git/drm-misc into drm-next

drm-misc for 4.12:

Core:
- Removed some fb subsampling dimension checks from core (Ville)
- Some MST slot cleanup (Dhinakaran)
- Extracted drm_debugfs.h & drm_ioctl.h from drmP.h (Daniel)
- Added drm_atomic_helper_shutdown() to compliment suspend/resume counterparts
  (Daniel)
- Pipe context through legacy modeset to remove legacy_backoff nasties (Daniel)
- Cleanups around vblank as well as allowing lockless counter reads (Chris W.)
- VGA Switcheroo added to MAINTAINERS with Lukas Wunner as reviewer (Lukas)

Drivers:
- Enhancements to rockchip driver probe (Jeffy) and dsi (Chris Z.)
- Thunderbolt external GPU awareness added (Lukas)

* tag 'drm-misc-next-2017-03-31' of git://anongit.freedesktop.org/git/drm-misc: (63 commits)
  apple-gmux: Don't switch external DP port on 2011+ MacBook Pros
  drm/nouveau: Don't register Thunderbolt eGPU with vga_switcheroo
  drm/amdgpu: Don't register Thunderbolt eGPU with vga_switcheroo
  drm/radeon: Don't register Thunderbolt eGPU with vga_switcheroo
  PCI: Recognize Thunderbolt devices
  MAINTAINERS: Add Lukas Wunner as reviewer for vga_switcheroo
  drm: Fix locking gotcha in page_flip ioctl
  drm: Clarify the role of plane_state argument to drm_simple update().
  drm: Clear e after kfree in drm_mode_page_flip_ioctl
  drm: Convert cmpxchg(bool) back to a two step operation
  drm/bridge: ti-tfp410: support hpd via gpio
  drm: use .hword to represent 16-bit numbers
  Revert unrelated part of "drm: simplify the locking in the GETCRTC ioctl"
  drm: Fixup failure paths in drm_atomic_helper_set_config
  drm: Peek at the current counter/timestamp for vblank queries
  drm: Refactor vblank sequence number comparison
  drm: vblank cannot be enabled if dev->irq_enabled is false
  drm: Mark up accesses of vblank->enabled outside of its spinlock
  drm: Make the decision to keep vblank irq enabled earlier
  drm/atomic-helper: Remove the backoff hack from set_config
  ...

Documentation/EDID/edid.S

@@ -59,9 +59,9 @@
 /* Fixed header pattern */
 header:		.byte	0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
 
-mfg_id:		.word	swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
+mfg_id:		.hword	swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
 
-prod_code:	.word	0
+prod_code:	.hword	0
 
 /* Serial number. 32 bits, little endian. */
 serial_number:	.long	SERIAL
@@ -177,7 +177,7 @@ std_vres:	.byte	(XY_RATIO<<6)+VFREQ-60
 
 descriptor1:
 /* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */
-clock:		.word	CLOCK/10
+clock:		.hword	CLOCK/10
 
 /* Horizontal active pixels 8 lsbits (0-4095) */
 x_act_lsb:	.byte	XPIX&0xff

Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt

@@ -10,7 +10,7 @@ Required properties:
 - interrupts: Represent the controller's interrupt to the CPU(s).
 - clocks, clock-names: Phandles to the controller's pll reference
   clock(ref) and APB clock(pclk). For RK3399, a phy config clock
-  (phy_cfg) is additional required. As described in [1].
+  (phy_cfg) and a grf clock(grf) are required. As described in [1].
 - rockchip,grf: this soc should set GRF regs to mux vopl/vopb.
 - ports: contain a port node with endpoint definitions as defined in [2].
   For vopb,set the reg = <0> and set the reg = <1> for vopl.

Documentation/gpu/drm-uapi.rst

@@ -207,6 +207,18 @@ Display CRC Support
 .. kernel-doc:: drivers/gpu/drm/drm_debugfs_crc.c
    :doc: CRC ABI
 
+.. kernel-doc:: drivers/gpu/drm/drm_debugfs_crc.c
+   :export:
+
+Debugfs Support
+---------------
+
+.. kernel-doc:: include/drm/drm_debugfs.h
+   :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_debugfs.c
+   :export:
+
 VBlank event handling
 =====================
 

Documentation/gpu/introduction.rst

@@ -60,3 +60,28 @@ checkpatch or sparse. We welcome such contributions.
 
 Anyone looking to kick it up a notch can find a list of janitorial tasks on
 the :ref:`TODO list <todo>`.
+
+Contribution Process
+====================
+
+Mostly the DRM subsystem works like any other kernel subsystem, see :ref:`the
+main process guidelines and documentation <process_index>` for how things work.
+Here we just document some of the specialities of the GPU subsystem.
+
+Feature Merge Deadlines
+-----------------------
+
+All feature work must be in the linux-next tree by the -rc6 release of the
+current release cycle, otherwise they must be postponed and can't reach the next
+merge window. All patches must have landed in the drm-next tree by latest -rc7,
+but if your branch is not in linux-next then this must have happened by -rc6
+already.
+
+After that point only bugfixes (like after the upstream merge window has closed
+with the -rc1 release) are allowed. No new platform enabling or new drivers are
+allowed.
+
+This means that there's a blackout-period of about one month where feature work
+can't be merged. The recommended way to deal with that is having a -next tree
+that's always open, but making sure to not feed it into linux-next during the
+blackout period. As an example, drm-misc works like that.

Documentation/gpu/kms-properties.csv

@@ -1,10 +1,5 @@
 Owner Module/Drivers,Group,Property Name,Type,Property Values,Object attached,Description/Restrictions
 ,,“scaling mode”,ENUM,"{ ""None"", ""Full"", ""Center"", ""Full aspect"" }",Connector,"Supported by: amdgpu, gma500, i915, nouveau and radeon."
-,Connector,“EDID”,BLOB | IMMUTABLE,0,Connector,Contains id of edid blob ptr object.
-,,“DPMS”,ENUM,"{ “On”, “Standby”, “Suspend”, “Off” }",Connector,Contains DPMS operation mode value.
-,,“PATH”,BLOB | IMMUTABLE,0,Connector,Contains topology path to a connector.
-,,“TILE”,BLOB | IMMUTABLE,0,Connector,Contains tiling information for a connector.
-,,“CRTC_ID”,OBJECT,DRM_MODE_OBJECT_CRTC,Connector,CRTC that connector is attached to (atomic)
 ,DVI-I,“subconnector”,ENUM,"{ “Unknown”, “DVI-D”, “DVI-A” }",Connector,TBD
 ,,“select subconnector”,ENUM,"{ “Automatic”, “DVI-D”, “DVI-A” }",Connector,TBD
 ,TV,“subconnector”,ENUM,"{ ""Unknown"", ""Composite"", ""SVIDEO"", ""Component"", ""SCART"" }",Connector,TBD

Documentation/gpu/todo.rst

@@ -99,6 +99,30 @@ events for atomic commits correctly. But fixing these bugs is good anyway.
 
 Contact: Daniel Vetter, respective driver maintainers
 
+Better manual-upload support for atomic
+---------------------------------------
+
+This would be especially useful for tinydrm:
+
+- Add a struct drm_rect dirty_clip to drm_crtc_state. When duplicating the
+  crtc state, clear that to the max values, x/y = 0 and w/h = MAX_INT, in
+  __drm_atomic_helper_crtc_duplicate_state().
+
+- Move tinydrm_merge_clips into drm_framebuffer.c, dropping the tinydrm_
+  prefix ofc and using drm_fb_. drm_framebuffer.c makes sense since this
+  is a function useful to implement the fb->dirty function.
+
+- Create a new drm_fb_dirty function which does essentially what e.g.
+  mipi_dbi_fb_dirty does. You can use e.g. drm_atomic_helper_update_plane as the
+  template. But instead of doing a simple full-screen plane update, this new
+  helper also sets crtc_state->dirty_clip to the right coordinates. And of
+  course it needs to check whether the fb is actually active (and maybe where),
+  so there's some book-keeping involved. There's also some good fun involved in
+  scaling things appropriately. For that case we might simply give up and
+  declare the entire area covered by the plane as dirty.
+
+Contact: Noralf Trønnes, Daniel Vetter
+
 Fallout from atomic KMS
 -----------------------
 
@@ -272,6 +296,32 @@ This is a really varied tasks with lots of little bits and pieces:
 
 Contact: Daniel Vetter
 
+Clean up the debugfs support
+----------------------------
+
+There's a bunch of issues with it:
+
+- The drm_info_list ->show() function doesn't even bother to cast to the drm
+  structure for you. This is lazy.
+
+- We probably want to have some support for debugfs files on crtc/connectors and
+  maybe other kms objects directly in core. There's even drm_print support in
+  the funcs for these objects to dump kms state, so it's all there. And then the
+  ->show() functions should obviously give you a pointer to the right object.
+
+- The drm_info_list stuff is centered on drm_minor instead of drm_device. For
+  anything we want to print drm_device (or maybe drm_file) is the right thing.
+
+- The drm_driver->debugfs_init hooks we have is just an artifact of the old
+  midlayered load sequence. DRM debugfs should work more like sysfs, where you
+  can create properties/files for an object anytime you want, and the core
+  takes care of publishing/unpuplishing all the files at register/unregister
+  time. Drivers shouldn't need to worry about these technicalities, and fixing
+  this (together with the drm_minor->drm_device move) would allow us to remove
+  debugfs_init.
+
+Contact: Daniel Vetter
+
 Better Testing
 ==============
 
@@ -310,6 +360,52 @@ Contact: Daniel Vetter
 Driver Specific
 ===============
 
+tinydrm
+-------
+
+Tinydrm is the helper driver for really simple fb drivers. The goal is to make
+those drivers as simple as possible, so lots of room for refactoring:
+
+- backlight helpers, probably best to put them into a new drm_backlight.c.
+  This is because drivers/video is de-facto unmaintained. We could also
+  move drivers/video/backlight to drivers/gpu/backlight and take it all
+  over within drm-misc, but that's more work.
+
+- spi helpers, probably best put into spi core/helper code. Thierry said
+  the spi maintainer is fast&reactive, so shouldn't be a big issue.
+
+- extract the mipi-dbi helper (well, the non-tinydrm specific parts at
+  least) into a separate helper, like we have for mipi-dsi already. Or follow
+  one of the ideas for having a shared dsi/dbi helper, abstracting away the
+  transport details more.
+
+- tinydrm_lastclose could be drm_fb_helper_lastclose. Only thing we need
+  for that is to store the drm_fb_helper pointer somewhere in
+  drm_device->mode_config. And then we could roll that out to all the
+  drivers.
+
+- tinydrm_gem_cma_prime_import_sg_table should probably go into the cma
+  helpers, as a _vmapped variant (since not every driver needs the vmap).
+  And tinydrm_gem_cma_free_object could the be merged into
+  drm_gem_cma_free_object().
+
+- tinydrm_fb_create we could move into drm_simple_pipe, only need to add
+  the fb_create hook to drm_simple_pipe_funcs, which would again simplify a
+  bunch of things (since it gives you a one-stop vfunc for simple drivers).
+
+- Quick aside: The unregister devm stuff is kinda getting the lifetimes of
+  a drm_device wrong. Doesn't matter, since everyone else gets it wrong
+  too :-)
+
+- With the fbdev pointer in dev->mode_config we could also make
+  suspend/resume helpers entirely generic, at least if we add a
+  dev->mode_config.suspend_state. We could even provide a generic pm_ops
+  structure with those.
+
+- also rework the drm_framebuffer_funcs->dirty hook wire-up, see above.
+
+Contact: Noralf Trønnes, Daniel Vetter
+
 Outside DRM
 ===========
 

Documentation/process/index.rst

@@ -3,6 +3,7 @@
 	\renewcommand\thesection*
 	\renewcommand\thesubsection*
 
+.. _process_index:
 
 Working with the kernel development community
 =============================================

MAINTAINERS

@@ -4145,6 +4145,7 @@ F:	Documentation/devicetree/bindings/video/
 F:	Documentation/gpu/
 F:	include/drm/
 F:	include/uapi/drm/
+F:	include/linux/vga*
 
 DRM DRIVERS AND MISC GPU PATCHES
 M:	Daniel Vetter <daniel.vetter@intel.com>
@@ -4158,6 +4159,7 @@ F:	drivers/gpu/vga/
 F:	drivers/gpu/drm/*
 F:	include/drm/drm*
 F:	include/uapi/drm/drm*
+F:	include/linux/vga*
 
 DRM DRIVER FOR AST SERVER GRAPHICS CHIPS
 M:	Dave Airlie <airlied@redhat.com>
@@ -13257,6 +13259,14 @@ L:	kvm@vger.kernel.org
 S:	Maintained
 F:	drivers/vfio/platform/
 
+VGA_SWITCHEROO
+R:	Lukas Wunner <lukas@wunner.de>
+S:	Maintained
+F:	Documentation/gpu/vga-switcheroo.rst
+F:	drivers/gpu/vga/vga_switcheroo.c
+F:	include/linux/vga_switcheroo.h
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+
 VIDEOBUF2 FRAMEWORK
 M:	Pawel Osciak <pawel@osciak.com>
 M:	Marek Szyprowski <m.szyprowski@samsung.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -1929,7 +1929,9 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 		runtime = true;
 	if (amdgpu_device_is_px(ddev))
 		runtime = true;
-	vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime);
+	if (!pci_is_thunderbolt_attached(adev->pdev))
+		vga_switcheroo_register_client(adev->pdev,
+					       &amdgpu_switcheroo_ops, runtime);
 	if (runtime)
 		vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
 
@@ -2084,7 +2086,8 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
 	amdgpu_atombios_fini(adev);
 	kfree(adev->bios);
 	adev->bios = NULL;
-	vga_switcheroo_unregister_client(adev->pdev);
+	if (!pci_is_thunderbolt_attached(adev->pdev))
+		vga_switcheroo_unregister_client(adev->pdev);
 	if (adev->flags & AMD_IS_PX)
 		vga_switcheroo_fini_domain_pm_ops(adev->dev);
 	vga_client_register(adev->pdev, NULL, NULL, NULL);

drivers/gpu/drm/amd/amdgpu/amdgpu_display.c

@@ -311,7 +311,8 @@ int amdgpu_crtc_page_flip_target(struct drm_crtc *crtc,
 				 struct drm_framebuffer *fb,
 				 struct drm_pending_vblank_event *event,
 				 uint32_t page_flip_flags,
-				 uint32_t target)
+				 uint32_t target,
+				 struct drm_modeset_acquire_ctx *ctx)
 {
 	struct amdgpu_bo *new_abo;
 	struct amdgpu_flip_work *work;
@@ -332,7 +333,8 @@ int amdgpu_crtc_page_flip_target(struct drm_crtc *crtc,
 	return 0;
 }
 
-int amdgpu_crtc_set_config(struct drm_mode_set *set)
+int amdgpu_crtc_set_config(struct drm_mode_set *set,
+			   struct drm_modeset_acquire_ctx *ctx)
 {
 	struct drm_device *dev;
 	struct amdgpu_device *adev;
@@ -349,7 +351,7 @@ int amdgpu_crtc_set_config(struct drm_mode_set *set)
 	if (ret < 0)
 		return ret;
 
-	ret = drm_crtc_helper_set_config(set);
+	ret = drm_crtc_helper_set_config(set, ctx);
 
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 		if (crtc->enabled)

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

@@ -103,7 +103,8 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
 	    amdgpu_has_atpx() &&
 	    (amdgpu_is_atpx_hybrid() ||
 	     amdgpu_has_atpx_dgpu_power_cntl()) &&
-	    ((flags & AMD_IS_APU) == 0))
+	    ((flags & AMD_IS_APU) == 0) &&
+	    !pci_is_thunderbolt_attached(dev->pdev))
 		flags |= AMD_IS_PX;
 
 	/* amdgpu_device_init should report only fatal error

drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h

@@ -590,11 +590,13 @@ int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int bpp, bool tile
 /* amdgpu_display.c */
 void amdgpu_print_display_setup(struct drm_device *dev);
 int amdgpu_modeset_create_props(struct amdgpu_device *adev);
-int amdgpu_crtc_set_config(struct drm_mode_set *set);
+int amdgpu_crtc_set_config(struct drm_mode_set *set,
+			   struct drm_modeset_acquire_ctx *ctx);
 int amdgpu_crtc_page_flip_target(struct drm_crtc *crtc,
 				 struct drm_framebuffer *fb,
 				 struct drm_pending_vblank_event *event,
-				 uint32_t page_flip_flags, uint32_t target);
+				 uint32_t page_flip_flags, uint32_t target,
+				 struct drm_modeset_acquire_ctx *ctx);
 void amdgpu_crtc_cleanup_flip_ctx(struct amdgpu_flip_work *work,
 				  struct amdgpu_bo *new_abo);
 int amdgpu_crtc_prepare_flip(struct drm_crtc *crtc,

drivers/gpu/drm/armada/armada_crtc.c

@@ -1027,7 +1027,8 @@ static void armada_drm_crtc_destroy(struct drm_crtc *crtc)
  * and a mode_set.
  */
 static int armada_drm_crtc_page_flip(struct drm_crtc *crtc,
-	struct drm_framebuffer *fb, struct drm_pending_vblank_event *event, uint32_t page_flip_flags)
+	struct drm_framebuffer *fb, struct drm_pending_vblank_event *event, uint32_t page_flip_flags,
+	struct drm_modeset_acquire_ctx *ctx)
 {
 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
 	struct armada_frame_work *work;

drivers/gpu/drm/armada/armada_overlay.c

@@ -94,7 +94,8 @@ static int
 armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
 	struct drm_framebuffer *fb,
 	int crtc_x, int crtc_y, unsigned crtc_w, unsigned crtc_h,
-	uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h)
+	uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h,
+	struct drm_modeset_acquire_ctx *ctx)
 {
 	struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 	struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
@@ -257,7 +258,8 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
 	return 0;
 }
 
-static int armada_ovl_plane_disable(struct drm_plane *plane)
+static int armada_ovl_plane_disable(struct drm_plane *plane,
+				    struct drm_modeset_acquire_ctx *ctx)
 {
 	struct armada_ovl_plane *dplane = drm_to_armada_ovl_plane(plane);
 	struct drm_framebuffer *fb;

drivers/gpu/drm/bochs/bochs_fbdev.c

@@ -192,6 +192,8 @@ void bochs_fbdev_fini(struct bochs_device *bochs)
 	if (bochs->fb.initialized)
 		bochs_fbdev_destroy(bochs);
 
-	drm_fb_helper_fini(&bochs->fb.helper);
+	if (bochs->fb.helper.fbdev)
+		drm_fb_helper_fini(&bochs->fb.helper);
+
 	bochs->fb.initialized = false;
 }

drivers/gpu/drm/bochs/bochs_kms.c

@@ -96,7 +96,8 @@ static void bochs_crtc_commit(struct drm_crtc *crtc)
 static int bochs_crtc_page_flip(struct drm_crtc *crtc,
 				struct drm_framebuffer *fb,
 				struct drm_pending_vblank_event *event,
-				uint32_t page_flip_flags)
+				uint32_t page_flip_flags,
+				struct drm_modeset_acquire_ctx *ctx)
 {
 	struct bochs_device *bochs =
 		container_of(crtc, struct bochs_device, crtc);

drivers/gpu/drm/bridge/synopsys/dw-hdmi.c

@@ -1916,7 +1916,7 @@ static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
 	if (intr_stat &
 	    (HDMI_IH_PHY_STAT0_RX_SENSE | HDMI_IH_PHY_STAT0_HPD)) {
 		mutex_lock(&hdmi->mutex);
-		if (!hdmi->disabled && !hdmi->force) {
+		if (!hdmi->force) {
 			/*
 			 * If the RX sense status indicates we're disconnected,
 			 * clear the software rxsense status.