/* * POWER Data Stream Control Register (DSCR) * * This header file contains helper functions and macros * required for all the DSCR related test cases. * * Copyright 2012, Anton Blanchard, IBM Corporation. * Copyright 2015, Anshuman Khandual, IBM Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation. */ #ifndef _SELFTESTS_POWERPC_DSCR_DSCR_H #define _SELFTESTS_POWERPC_DSCR_DSCR_H #include #include #include #include #include #include #include #include #include #include #include #include "utils.h" #define THREADS 100 /* Max threads */ #define COUNT 100 /* Max iterations */ #define DSCR_MAX 16 /* Max DSCR value */ #define LEN_MAX 100 /* Max name length */ #define DSCR_DEFAULT "/sys/devices/system/cpu/dscr_default" #define CPU_PATH "/sys/devices/system/cpu/" #define rmb() asm volatile("lwsync":::"memory") #define wmb() asm volatile("lwsync":::"memory") #define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x)) /* Prilvilege state DSCR access */ inline unsigned long get_dscr(void) { unsigned long ret; asm volatile("mfspr %0,%1" : "=r" (ret) : "i" (SPRN_DSCR_PRIV)); return ret; } inline void set_dscr(unsigned long val) { asm volatile("mtspr %1,%0" : : "r" (val), "i" (SPRN_DSCR_PRIV)); } /* Problem state DSCR access */ inline unsigned long get_dscr_usr(void) { unsigned long ret; asm volatile("mfspr %0,%1" : "=r" (ret) : "i" (SPRN_DSCR)); return ret; } inline void set_dscr_usr(unsigned long val) { asm volatile("mtspr %1,%0" : : "r" (val), "i" (SPRN_DSCR)); } /* Default DSCR access */ unsigned long get_default_dscr(void) { int fd = -1, ret; char buf[16]; unsigned long val; if (fd == -1) { fd = open(DSCR_DEFAULT, O_RDONLY); if (fd == -1) { perror("open() failed"); exit(1); } } memset(buf, 0, sizeof(buf)); lseek(fd, 0, SEEK_SET); ret = read(fd, buf, sizeof(buf)); if (ret == -1) { perror("read() failed"); exit(1); } sscanf(buf, "%lx", &val); close(fd); return val; } void set_default_dscr(unsigned long val) { int fd = -1, ret; char buf[16]; if (fd == -1) { fd = open(DSCR_DEFAULT, O_RDWR); if (fd == -1) { perror("open() failed"); exit(1); } } sprintf(buf, "%lx\n", val); ret = write(fd, buf, strlen(buf)); if (ret == -1) { perror("write() failed"); exit(1); } close(fd); } double uniform_deviate(int seed) { return seed * (1.0 / (RAND_MAX + 1.0)); } #endif /* _SELFTESTS_POWERPC_DSCR_DSCR_H */ thor
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authorJack Morgenstein <jackm@dev.mellanox.co.il>2017-01-15 20:15:00 +0200
committerDoug Ledford <dledford@redhat.com>2017-01-27 14:29:04 -0500
commitb4cfe3971f6eab542dd7ecc398bfa1aeec889934 (patch)
treec7ad49d05da0535170c8e7710cd44ae1cecc271f /sound/usb/mixer_scarlett.h
parent2d4b21e0a2913612274a69a3ba1bfee4cffc6e77 (diff)
RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
If IPV6 has not been enabled in the underlying kernel, we must avoid calling IPV6 procedures in rdma_cm.ko. This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements surrounding any code which calls external IPV6 procedures. In the instance fixed here, procedure cma_bind_addr() called ipv6_addr_type() -- which resulted in calling external procedure __ipv6_addr_type(). Fixes: 6c26a77124ff ("RDMA/cma: fix IPv6 address resolution") Cc: <stable@vger.kernel.org> # v4.2+ Cc: Spencer Baugh <sbaugh@catern.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'sound/usb/mixer_scarlett.h')