talos-op-linux/arch/xtensa/platforms, branch v4.6-rc4

Merge tag 'xtensa-next-20160320' of git://github.com/czankel/xtensa-linux

2016-03-20T19:22:07+00:00

Pull Xtensa updates from Chris Zankel: "Xtensa improvements for 4.6: - control whether perf IRQ is treated as NMI from Kconfig - implement ioremap for regions outside KIO segment - fix ISS serial port behaviour when EOF is reached - fix preemption in {clear,copy}_user_highpage - fix endianness issues for XTFPGA devices, big-endian cores are now fully functional - clean up debug infrastructure and add support for hardware breakpoints and watchpoints - add processor configurations for Three Core HiFi-2 MX and HiFi3 cpus" * tag 'xtensa-next-20160320' of git://github.com/czankel/xtensa-linux: xtensa: add test_kc705_hifi variant xtensa: add Three Core HiFi-2 MX Variant. xtensa: support hardware breakpoints/watchpoints xtensa: use context structure for debug exceptions xtensa: remove remaining non-functional KGDB bits xtensa: clear all DBREAKC registers on start xtensa: xtfpga: fix earlycon endianness xtensa: xtfpga: fix i2c controller register width and endianness xtensa: xtfpga: fix ethernet controller endianness xtensa: xtfpga: fix serial port register width and endianness xtensa: define CONFIG_CPU_{BIG,LITTLE}_ENDIAN xtensa: fix preemption in {clear,copy}_user_highpage xtensa: ISS: don't hang if stdin EOF is reached xtensa: support ioremap for memory outside KIO region xtensa: use XTENSA_INT_LEVEL macro in asm/timex.h xtensa: make fake NMI configurable

xtensa: xtfpga: fix ethernet controller endianness

2016-03-11T08:53:31+00:00

Ethernet controller is attached to XTFPGA boards as native endian device, mark it as such in DTS and pass correct endianness in platform data. This makes network functional on big-endian CPUs. Signed-off-by: Max Filippov

xtensa: xtfpga: fix serial port register width and endianness

2016-03-11T08:53:31+00:00

Serial port is attached to XTFPGA boards as native endian device, mark it as such in DTS and pass correct endianness in platform data. Set register width in DTS to 4, this way it matches the platform data and works correctly on big-endian CPUs. Signed-off-by: Max Filippov

xtensa: ISS: don't hang if stdin EOF is reached

2016-03-11T08:53:31+00:00

Simulator stdin may be connected to a file, when its end is reached kernel hangs in infinite loop inside rs_poll, because simc_poll always signals that descriptor 0 is readable and simc_read always returns 0. Check simc_read return value and exit loop if it's not positive. Also don't rewind polling timer if it's zero. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov

TTY: xtensa/iss/console, remove unused _INLINE_ definition

2016-02-07T06:16:21+00:00

This is a remnant from the dark age. Nobody uses the macro now, so remove. Signed-off-by: Jiri Slaby Cc: Chris Zankel Cc: Max Filippov Cc: Signed-off-by: Greg Kroah-Hartman

serial: Fix ASYNC_* => UPF_* flags misuse

2016-01-28T22:17:42+00:00

The UPF_* flags are the correct values to use for struct uart_port and struct old_serial_port/SERIAL_PORT_DFNS. Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman

convert a bunch of open-coded instances of memdup_user_nul()

2016-01-04T15:26:58+00:00

A _lot_ of ->write() instances were open-coding it; some are converted to memdup_user_nul(), a lot more remain... Signed-off-by: Al Viro

Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block

2015-11-11T01:23:49+00:00

Pull block IO poll support from Jens Axboe: "Various groups have been doing experimentation around IO polling for (really) fast devices. The code has been reviewed and has been sitting on the side for a few releases, but this is now good enough for coordinated benchmarking and further experimentation. Currently O_DIRECT sync read/write are supported. A framework is in the works that allows scalable stats tracking so we can auto-tune this. And we'll add libaio support as well soon. Fow now, it's an opt-in feature for test purposes" * 'for-4.4/io-poll' of git://git.kernel.dk/linux-block: direct-io: be sure to assign dio->bio_bdev for both paths directio: add block polling support NVMe: add blk polling support block: add block polling support blk-mq: return tag/queue combo in the make_request_fn handlers block: change ->make_request_fn() and users to return a queue cookie

block: change ->make_request_fn() and users to return a queue cookie

2015-11-07T17:40:46+00:00

No functional changes in this patch, but it prepares us for returning a more useful cookie related to the IO that was queued up. Signed-off-by: Jens Axboe Acked-by: Christoph Hellwig Acked-by: Keith Busch

xtensa: xtfpga: fix integer overflow in TASK_SIZE

2015-11-02T15:02:55+00:00

This fixes the following warning when default memory region crosses 0x80000000: arch/xtensa/include/asm/processor.h:40:47: warning: integer overflow in expression [-Woverflow] #define TASK_SIZE (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE) ^ Signed-off-by: Max Filippov