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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-03 16:41:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-03 16:41:38 -0700
commitff474e8ca8547d09cb82ebab56d4c96f9eea01ce (patch)
treec004122f04a405eddb7929cd0297ccdce016f1b8 /Documentation
parent4c92b5bb14226faa16d29a1df5752baf1ff22b53 (diff)
parent390fd5929f52bdfb9dfcc03820041ba556780f4a (diff)
Merge tag 'powerpc-4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman: - support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask from Benjamin Herrenschmidt - EEH fixes for SRIOV from Gavin - introduce rtas_get_sensor_fast() for IRQ handlers from Thomas Huth - use hardware RNG for arch_get_random_seed_* not arch_get_random_* from Paul Mackerras - seccomp filter support from Michael Ellerman - opal_cec_reboot2() handling for HMIs & machine checks from Mahesh Salgaonkar - add powerpc timebase as a trace clock source from Naveen N. Rao - misc cleanups in the xmon, signal & SLB code from Anshuman Khandual - add an inline function to update POWER8 HID0 from Gautham R. Shenoy - fix pte_pagesize_index() crash on 4K w/64K hash from Michael Ellerman - drop support for 64K local store on 4K kernels from Michael Ellerman - move dma_get_required_mask() from pnv_phb to pci_controller_ops from Andrew Donnellan - initialize distance lookup table from drconf path from Nikunj A Dadhania - enable RTC class support from Vaibhav Jain - disable automatically blocked PCI config from Gavin Shan - add LEDs driver for PowerNV platform from Vasant Hegde - fix endianness issues in the HVSI driver from Laurent Dufour - kexec endian fixes from Samuel Mendoza-Jonas - fix corrupted pdn list from Gavin Shan - fix fenced PHB caused by eeh_slot_error_detail() from Gavin Shan - Freescale updates from Scott: Highlights include 32-bit memcpy/memset optimizations, checksum optimizations, 85xx config fragments and updates, device tree updates, e6500 fixes for non-SMP, and misc cleanup and minor fixes. - a ton of cxl updates & fixes: - add explicit precision specifiers from Rasmus Villemoes - use more common format specifier from Rasmus Villemoes - destroy cxl_adapter_idr on module_exit from Johannes Thumshirn - destroy afu->contexts_idr on release of an afu from Johannes Thumshirn - compile with -Werror from Daniel Axtens - EEH support from Daniel Axtens - plug irq_bitmap getting leaked in cxl_context from Vaibhav Jain - add alternate MMIO error handling from Ian Munsie - allow release of contexts which have been OPENED but not STARTED from Andrew Donnellan - remove use of macro DEFINE_PCI_DEVICE_TABLE from Vaishali Thakkar - release irqs if memory allocation fails from Vaibhav Jain - remove racy attempt to force EEH invocation in reset from Daniel Axtens - fix + cleanup error paths in cxl_dev_context_init from Ian Munsie - fix force unmapping mmaps of contexts allocated through the kernel api from Ian Munsie - set up and enable PSL Timebase from Philippe Bergheaud * tag 'powerpc-4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (140 commits) cxl: Set up and enable PSL Timebase cxl: Fix force unmapping mmaps of contexts allocated through the kernel api cxl: Fix + cleanup error paths in cxl_dev_context_init powerpc/eeh: Fix fenced PHB caused by eeh_slot_error_detail() powerpc/pseries: Cleanup on pci_dn_reconfig_notifier() powerpc/pseries: Fix corrupted pdn list powerpc/powernv: Enable LEDS support powerpc/iommu: Set default DMA offset in dma_dev_setup cxl: Remove racy attempt to force EEH invocation in reset cxl: Release irqs if memory allocation fails cxl: Remove use of macro DEFINE_PCI_DEVICE_TABLE powerpc/powernv: Fix mis-merge of OPAL support for LEDS driver powerpc/powernv: Reset HILE before kexec_sequence() powerpc/kexec: Reset secondary cpu endianness before kexec powerpc/hvsi: Fix endianness issues in the HVSI driver leds/powernv: Add driver for PowerNV platform powerpc/powernv: Create LED platform device powerpc/powernv: Add OPAL interfaces for accessing and modifying system LED states powerpc/powernv: Fix the log message when disabling VF cxl: Allow release of contexts which have been OPENED but not STARTED ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/sysfs-class-cxl10
-rw-r--r--Documentation/devicetree/bindings/leds/leds-powernv.txt26
-rw-r--r--Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt3
-rw-r--r--Documentation/devicetree/bindings/powerpc/fsl/scfg.txt18
-rw-r--r--Documentation/trace/ftrace.txt5
5 files changed, 62 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-cxl b/Documentation/ABI/testing/sysfs-class-cxl
index acfe9df83139..b07e86d4597f 100644
--- a/Documentation/ABI/testing/sysfs-class-cxl
+++ b/Documentation/ABI/testing/sysfs-class-cxl
@@ -223,3 +223,13 @@ Description: write only
Writing 1 will issue a PERST to card which may cause the card
to reload the FPGA depending on load_image_on_perst.
Users: https://github.com/ibm-capi/libcxl
+
+What: /sys/class/cxl/<card>/perst_reloads_same_image
+Date: July 2015
+Contact: linuxppc-dev@lists.ozlabs.org
+Description: read/write
+ Trust that when an image is reloaded via PERST, it will not
+ have changed.
+ 0 = don't trust, the image may be different (default)
+ 1 = trust that the image will not change.
+Users: https://github.com/ibm-capi/libcxl
diff --git a/Documentation/devicetree/bindings/leds/leds-powernv.txt b/Documentation/devicetree/bindings/leds/leds-powernv.txt
new file mode 100644
index 000000000000..66655690f749
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-powernv.txt
@@ -0,0 +1,26 @@
+Device Tree binding for LEDs on IBM Power Systems
+-------------------------------------------------
+
+Required properties:
+- compatible : Should be "ibm,opal-v3-led".
+- led-mode : Should be "lightpath" or "guidinglight".
+
+Each location code of FRU/Enclosure must be expressed in the
+form of a sub-node.
+
+Required properties for the sub nodes:
+- led-types : Supported LED types (attention/identify/fault) provided
+ in the form of string array.
+
+Example:
+
+leds {
+ compatible = "ibm,opal-v3-led";
+ led-mode = "lightpath";
+
+ U78C9.001.RST0027-P1-C1 {
+ led-types = "identify", "fault";
+ };
+ ...
+ ...
+};
diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
index d5e370450ac0..89427b018ba7 100644
--- a/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
+++ b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
@@ -18,6 +18,8 @@ Properties:
interrupt (NAND_EVTER_STAT). If there is only one,
that interrupt reports both types of event.
+- little-endian : If this property is absent, the big-endian mode will
+ be in use as default for registers.
- ranges : Each range corresponds to a single chipselect, and covers
the entire access window as configured.
@@ -34,6 +36,7 @@ Example:
#size-cells = <1>;
reg = <0x0 0xffe1e000 0 0x2000>;
interrupts = <16 2 19 2>;
+ little-endian;
/* NOR, NAND Flashes and CPLD on board */
ranges = <0x0 0x0 0x0 0xee000000 0x02000000
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/scfg.txt b/Documentation/devicetree/bindings/powerpc/fsl/scfg.txt
new file mode 100644
index 000000000000..0532c46b3372
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/fsl/scfg.txt
@@ -0,0 +1,18 @@
+Freescale Supplement configuration unit (SCFG)
+
+SCFG is the supplemental configuration unit, that provides SoC specific
+configuration and status registers for the chip. Such as getting PEX port
+status.
+
+Required properties:
+
+- compatible: should be "fsl,<chip>-scfg"
+- reg: should contain base address and length of SCFG memory-mapped
+registers
+
+Example:
+
+ scfg: global-utilities@fc000 {
+ compatible = "fsl,t1040-scfg";
+ reg = <0xfc000 0x1000>;
+ };
diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index 7ddb1e319f84..87bb4aa6a6b9 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -346,6 +346,11 @@ of ftrace. Here is a list of some of the key files:
x86-tsc: Architectures may define their own clocks. For
example, x86 uses its own TSC cycle clock here.
+ ppc-tb: This uses the powerpc timebase register value.
+ This is in sync across CPUs and can also be used
+ to correlate events across hypervisor/guest if
+ tb_offset is known.
+
To set a clock, simply echo the clock name into this file.
echo global > trace_clock