/* * Copyright 2016, Cyril Bur, IBM Corp. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * * Test the kernel's signal frame code. * * The kernel sets up two sets of ucontexts if the signal was to be * delivered while the thread was in a transaction. * Expected behaviour is that the checkpointed state is in the user * context passed to the signal handler. The speculated state can be * accessed with the uc_link pointer. * * The rationale for this is that if TM unaware code (which linked * against TM libs) installs a signal handler it will not know of the * speculative nature of the 'live' registers and may infer the wrong * thing. */ #include #include #include #include #include #include "utils.h" #include "tm.h" #define MAX_ATTEMPT 500000 #define NV_FPU_REGS 18 long tm_signal_self_context_load(pid_t pid, long *gprs, double *fps, vector int *vms, vector int *vss); /* Be sure there are 2x as many as there are NV FPU regs (2x18) */ static double fps[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, -1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-17,-18 }; static sig_atomic_t fail; static void signal_usr1(int signum, siginfo_t *info, void *uc) { int i; ucontext_t *ucp = uc; ucontext_t *tm_ucp = ucp->uc_link; for (i = 0; i < NV_FPU_REGS && !fail; i++) { fail = (ucp->uc_mcontext.fp_regs[i + 14] != fps[i]); fail |= (tm_ucp->uc_mcontext.fp_regs[i + 14] != fps[i + NV_FPU_REGS]); if (fail) printf("Failed on %d FP %g or %g\n", i, ucp->uc_mcontext.fp_regs[i + 14], tm_ucp->uc_mcontext.fp_regs[i + 14]); } } static int tm_signal_context_chk_fpu() { struct sigaction act; int i; long rc; pid_t pid = getpid(); SKIP_IF(!have_htm()); act.sa_sigaction = signal_usr1; sigemptyset(&act.sa_mask); act.sa_flags = SA_SIGINFO; if (sigaction(SIGUSR1, &act, NULL) < 0) { perror("sigaction sigusr1"); exit(1); } i = 0; while (i < MAX_ATTEMPT && !fail) { rc = tm_signal_self_context_load(pid, NULL, fps, NULL, NULL); FAIL_IF(rc != pid); i++; } return fail; } int main(void) { return test_harness(tm_signal_context_chk_fpu, "tm_signal_context_chk_fpu"); } 97f62bdad07e3f84'/>
path: root/drivers/usb
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authorAleksander Morgado <aleksander@aleksander.es>2017-01-18 21:31:31 +0100
committerJohan Hovold <johan@kernel.org>2017-01-19 09:08:37 +0100
commit24d615a694d649aa2e167c3f97f62bdad07e3f84 (patch)
tree2fe33c115bdec6bf4b01e27afd90bb16fa668e22 /drivers/usb
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
USB: serial: qcserial: add Dell DW5570 QDL
The Dell DW5570 is a re-branded Sierra Wireless MC8805 which will by default boot with vid 0x413c and pid 0x81a3. When triggered QDL download mode, the device switches to pid 0x81a6 and provides the standard TTY used for firmware upgrade. Cc: <stable@vger.kernel.org> Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb')