Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-q…

…ueued

Backmerge drm-next to get at the nonblocking atomic helpers, needed to
merge the i915 conversion.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

Documentation/.gitignore

@@ -0,0 +1 @@
+output

Documentation/DocBook/Makefile

@@ -33,10 +33,6 @@ PDF_METHOD	= $(prefer-db2x)
 PS_METHOD	= $(prefer-db2x)
 
 
-###
-# The targets that may be used.
-PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
-
 targets += $(DOCBOOKS)
 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
 xmldocs: $(BOOKS)
@@ -63,6 +59,9 @@ installmandocs: mandocs
 		sort -k 2 -k 1 | uniq -f 1 | sed -e 's: :/:' | \
 		xargs install -m 644 -t /usr/local/man/man9/
 
+# no-op for the DocBook toolchain
+epubdocs:
+
 ###
 #External programs used
 KERNELDOCXMLREF = $(srctree)/scripts/kernel-doc-xml-ref

Documentation/DocBook/device-drivers.tmpl

@@ -128,16 +128,48 @@ X!Edrivers/base/interface.c
 !Edrivers/base/platform.c
 !Edrivers/base/bus.c
      </sect1>
-     <sect1><title>Device Drivers DMA Management</title>
+     <sect1>
+       <title>Buffer Sharing and Synchronization</title>
+       <para>
+         The dma-buf subsystem provides the framework for sharing buffers
+         for hardware (DMA) access across multiple device drivers and
+         subsystems, and for synchronizing asynchronous hardware access.
+       </para>
+       <para>
+         This is used, for example, by drm "prime" multi-GPU support, but
+         is of course not limited to GPU use cases.
+       </para>
+       <para>
+         The three main components of this are: (1) dma-buf, representing
+         a sg_table and exposed to userspace as a file descriptor to allow
+         passing between devices, (2) fence, which provides a mechanism
+         to signal when one device as finished access, and (3) reservation,
+         which manages the shared or exclusive fence(s) associated with
+         the buffer.
+       </para>
+       <sect2><title>dma-buf</title>
 !Edrivers/dma-buf/dma-buf.c
+!Iinclude/linux/dma-buf.h
+       </sect2>
+       <sect2><title>reservation</title>
+!Pdrivers/dma-buf/reservation.c Reservation Object Overview
+!Edrivers/dma-buf/reservation.c
+!Iinclude/linux/reservation.h
+       </sect2>
+       <sect2><title>fence</title>
 !Edrivers/dma-buf/fence.c
-!Edrivers/dma-buf/seqno-fence.c
 !Iinclude/linux/fence.h
+!Edrivers/dma-buf/seqno-fence.c
 !Iinclude/linux/seqno-fence.h
+!Edrivers/dma-buf/fence-array.c
+!Iinclude/linux/fence-array.h
 !Edrivers/dma-buf/reservation.c
 !Iinclude/linux/reservation.h
 !Edrivers/dma-buf/sync_file.c
 !Iinclude/linux/sync_file.h
+       </sect2>
+     </sect1>
+     <sect1><title>Device Drivers DMA Management</title>
 !Edrivers/base/dma-coherent.c
 !Edrivers/base/dma-mapping.c
      </sect1>

Documentation/DocBook/gpu.tmpl

@@ -1017,6 +1017,11 @@ int max_width, max_height;</synopsis>
 	<function>drm_framebuffer_unregister_private</function>.
       </para>
     </sect2>
+    <sect2>
+      <title>DRM Format Handling</title>
+!Iinclude/drm/drm_fourcc.h
+!Edrivers/gpu/drm/drm_fourcc.c
+    </sect2>
     <sect2>
       <title>Dumb Buffer Objects</title>
       <para>
@@ -1570,7 +1575,7 @@ void intel_crt_init(struct drm_device *dev)
       </sect3>
       <sect3>
 	<title>Implementing Asynchronous Atomic Commit</title>
-!Pdrivers/gpu/drm/drm_atomic_helper.c implementing async commit
+!Pdrivers/gpu/drm/drm_atomic_helper.c implementing nonblocking commit
       </sect3>
       <sect3>
 	<title>Atomic State Reset and Initialization</title>
@@ -1683,6 +1688,12 @@ void intel_crt_init(struct drm_device *dev)
 !Edrivers/gpu/drm/drm_panel.c
 !Pdrivers/gpu/drm/drm_panel.c drm panel
     </sect2>
+    <sect2>
+      <title>Simple KMS Helper Reference</title>
+!Iinclude/drm/drm_simple_kms_helper.h
+!Edrivers/gpu/drm/drm_simple_kms_helper.c
+!Pdrivers/gpu/drm/drm_simple_kms_helper.c overview
+    </sect2>
   </sect1>
 
   <!-- Internals: kms properties -->

Documentation/Makefile.sphinx

@@ -0,0 +1,63 @@
+# -*- makefile -*-
+# Makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line.
+SPHINXBUILD   = sphinx-build
+SPHINXOPTS    =
+PAPER         =
+BUILDDIR      = $(obj)/output
+
+# User-friendly check for sphinx-build
+HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
+
+ifeq ($(HAVE_SPHINX),0)
+
+.DEFAULT:
+	$(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
+	@echo "  SKIP    Sphinx $@ target."
+
+else # HAVE_SPHINX
+
+# User-friendly check for rst2pdf
+HAVE_RST2PDF := $(shell if python -c "import rst2pdf" >/dev/null 2>&1; then echo 1; else echo 0; fi)
+
+# Internal variables.
+PAPEROPT_a4     = -D latex_paper_size=a4
+PAPEROPT_letter = -D latex_paper_size=letter
+KERNELDOC       = $(srctree)/scripts/kernel-doc
+KERNELDOC_CONF  = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
+ALLSPHINXOPTS   = -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) -d $(BUILDDIR)/.doctrees $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) -c $(srctree)/$(src) $(SPHINXOPTS) $(srctree)/$(src)
+# the i18n builder cannot share the environment and doctrees with the others
+I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
+
+quiet_cmd_sphinx = SPHINX  $@
+      cmd_sphinx = $(SPHINXBUILD) -b $2 $(ALLSPHINXOPTS) $(BUILDDIR)/$2
+
+htmldocs:
+	$(call cmd,sphinx,html)
+
+pdfdocs:
+ifeq ($(HAVE_RST2PDF),0)
+	$(warning The Python 'rst2pdf' module was not found. Make sure you have the module installed to produce PDF output.)
+	@echo "  SKIP    Sphinx $@ target."
+else # HAVE_RST2PDF
+	$(call cmd,sphinx,pdf)
+endif # HAVE_RST2PDF
+
+epubdocs:
+	$(call cmd,sphinx,epub)
+
+xmldocs:
+	$(call cmd,sphinx,xml)
+
+# no-ops for the Sphinx toolchain
+sgmldocs:
+psdocs:
+mandocs:
+installmandocs:
+
+cleandocs:
+	$(Q)rm -rf $(BUILDDIR)
+
+endif # HAVE_SPHINX

Documentation/arm64/silicon-errata.txt

@@ -56,6 +56,7 @@ stable kernels.
 | ARM            | MMU-500         | #841119,#826419 | N/A                     |
 |                |                 |                 |                         |
 | Cavium         | ThunderX ITS    | #22375, #24313  | CAVIUM_ERRATUM_22375    |
+| Cavium         | ThunderX ITS    | #23144          | CAVIUM_ERRATUM_23144    |
 | Cavium         | ThunderX GICv3  | #23154          | CAVIUM_ERRATUM_23154    |
 | Cavium         | ThunderX Core   | #27456          | CAVIUM_ERRATUM_27456    |
 | Cavium         | ThunderX SMMUv2 | #27704          | N/A		       |