talos-obmc-linux/arch/parisc/include/uapi, branch dev-5.0-raptor-04-16-2019

arch: remove redundant UAPI generic-y defines

2019-01-06T01:22:15+00:00

Now that Kbuild automatically creates asm-generic wrappers for missing mandatory headers, it is redundant to list the same headers in generic-y and mandatory-y. Suggested-by: Sam Ravnborg Signed-off-by: Masahiro Yamada Acked-by: Sam Ravnborg

arch: remove stale comments "UAPI Header export list"

2019-01-06T00:46:51+00:00

These comments are leftovers of commit fcc8487d477a ("uapi: export all headers under uapi directories"). Prior to that commit, exported headers must be explicitly added to header-y. Now, all headers under the uapi/ directories are exported. Signed-off-by: Masahiro Yamada

parisc: generate uapi header and system call table files

2018-12-10T07:26:04+00:00

System call table generation script must be run to gener- ate unistd_32/64.h and syscall_table_32/64/c32.h files. This patch will have changes which will invokes the script. This patch will generate unistd_32/64.h and syscall_table- _32/64/c32.h files by the syscall table generation script invoked by parisc/Makefile and the generated files against the removed files must be identical. The generated uapi header file will be included in uapi/- asm/unistd.h and generated system call table header file will be included by kernel/syscall.S file. Signed-off-by: Firoz Khan Acked-by: Helge Deller Signed-off-by: Helge Deller

parisc: remove __NR_Linux from uapi header file.

2018-12-10T07:26:03+00:00

The __NR_Linux defined as 0 to support HP-UX syscalls along with an offset to other system call. But support for HP-UX is gone and there is no need to define __NR_Linux as 0. One of the patch in this patch series will generate uapi header file which does have offset logic support. But here the offset value __NR_Linux defined as 0 and it doesn't make much effect. So remove the offset __NR_Linux from uapi header file. Signed-off-by: Firoz Khan Acked-by: Helge Deller Signed-off-by: Helge Deller

parisc: add __NR_syscalls along with __NR_Linux_syscalls

2018-12-10T07:26:03+00:00

__NR_Linux_syscalls macro holds the number of system call exist in parisc architecture. We have to change the value of __NR_Linux_syscalls, if we add or delete a system call. One of the patch in this patch series has a script which will generate a uapi header based on syscall.tbl file. The syscall.tbl file contains the total number of system calls information. So we have two option to update __NR- _Linux_syscalls value. 1. Update __NR_Linux_syscalls in asm/unistd.h manually by counting the no.of system calls. No need to update __NR- _Linux_syscalls until we either add a new system call or delete existing system call. 2. We can keep this feature it above mentioned script, that will count the number of syscalls and keep it in a generated file. In this case we don't need to expli- citly update __NR_Linux_syscalls in asm/unistd.h file. The 2nd option will be the recommended one. For that, I added the __NR_syscalls macro in uapi/asm/unistd.h along with __NR_Linux_syscalls asm/unistd.h. The macro __NR_sys- calls also added for making the name convention same across all architecture. While __NR_syscalls isn't strictly part of the uapi, having it as part of the generated header to simplifies the implementation. We also need to enclose this macro with #ifdef __KERNEL__ to avoid side effects. Signed-off-by: Firoz Khan Acked-by: Helge Deller Signed-off-by: Helge Deller

parisc: move __IGNORE* entries to non uapi header

2018-12-10T07:26:03+00:00

All the __IGNORE* entries are resides in the uapi header file move to non uapi header asm/unistd.h as it is not used by any user space applications. It is correct to keep __IGNORE* entry in non uapi header asm/unistd.h while uapi/asm/unistd.h must hold information only useful for user space applications. One of the patch in this patch series will generate uapi header file. The information which directly used by the user space application must be present in uapi file. Signed-off-by: Firoz Khan Acked-by: Helge Deller Signed-off-by: Helge Deller

Merge branch 'parisc-4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

2018-10-29T22:02:40+00:00

Pull parisc updates from Helge Deller: "Three small patches: - A boot fix for A500 machines, crash was caused by the new alternative patching code from this merge window (Dave) - Change __kernel_suseconds_t to match glibc on 64-bit parisc (Arnd) - Use constants instead of hard-coded numbers (me)" * 'parisc-4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix A500 boot crash parisc: Use LINUX_GATEWAY_SPACE constant in entry.S parisc64: change __kernel_suseconds_t to match glibc

Merge tag 'tty-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2018-10-29T17:42:20+00:00

Pull tty/serial updates from Greg KH: "Here is the big tty and serial pull request for 4.20-rc1 Lots of little things here, including a merge from the SPI tree in order to keep things simpler for everyone to sync around for one platform. Major stuff is: - tty buffer clearing after use - atmel_serial fixes and additions - xilinx uart driver updates and of course, lots of tiny fixes and additions to individual serial drivers. All of these have been in linux-next with no reported issues for a while" * tag 'tty-4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits) of: base: Change logic in of_alias_get_alias_list() of: base: Fix english spelling in of_alias_get_alias_list() serial: sh-sci: do not warn if DMA transfers are not supported serial: uartps: Do not allow use aliases >= MAX_UART_INSTANCES tty: check name length in tty_find_polling_driver() serial: sh-sci: Add r8a77990 support tty: wipe buffer if not echoing data tty: wipe buffer. serial: fsl_lpuart: Remove the alias node dependence TTY: sn_console: Replace spin_is_locked() with spin_trylock() Revert "serial:serial_core: Allow use of CTS for PPS line discipline" serial: 8250_uniphier: add auto-flow-control support serial: 8250_uniphier: flatten probe function serial: 8250_uniphier: remove unused "fifo-size" property dt-bindings: serial: sh-sci: Document r8a7744 bindings serial: uartps: Fix missing unlock on error in cdns_get_id() tty/serial: atmel: add ISO7816 support tty/serial_core: add ISO7816 infrastructure serial:serial_core: Allow use of CTS for PPS line discipline serial: docs: Fix filename for serial reference implementation ...

parisc64: change __kernel_suseconds_t to match glibc

2018-10-26T06:14:35+00:00

There are only two 64-bit architecture ports that have a 32-bit suseconds_t: sparc64 and parisc64. I've encountered a number of problems with this, while trying to get a proper 64-bit time_t working on 32-bit architectures. Having a 32-bit suseconds_t combined with a 64-bit time_t means that we get extra padding in data structures that may leak kernel stack data to user space, and it breaks all code that assumes that timespec and timeval have the same layout. While we can't change sparc64, it seems that glibc on parisc64 has always set suseconds_t to 'long', and the current version would give incorrect results for gettimeofday() and many other interfaces: timestamps passed from user space into the kernel result in tv_usec being always zero (the lower bits contain the intended value but are ignored) while data passed from the kernel to user space contains either zeroes or random data in tv_usec. Based on that, it seems best to change the user API in the kernel in an incompatible way to match what glibc expects. Note that the distros I could find (gentoo and debian) all just have 32-bit user space, which does not suffer from this problem. Signed-off-by: Arnd Bergmann Signed-off-by: Helge Deller

signal: Remove the need for __ARCH_SI_PREABLE_SIZE and SI_PAD_SIZE

2018-10-03T14:46:43+00:00

Rework the defintion of struct siginfo so that the array padding struct siginfo to SI_MAX_SIZE can be placed in a union along side of the rest of the struct siginfo members. The result is that we no longer need the __ARCH_SI_PREAMBLE_SIZE or SI_PAD_SIZE definitions. Signed-off-by: "Eric W. Biederman"