| /* |
| * (C) Copyright 2012 Quantenna Communications Inc. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * 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. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef __RUBY_PM_MPROC_H |
| #define __RUBY_PM_MPROC_H |
| |
| #if defined(__KERNEL__) || defined(MUC_BUILD) |
| #include <qtn/mproc_sync.h> |
| #include "ruby_pm.h" |
| |
| #if QTN_SEM_TRACE |
| #define qtn_pm_duty_try_lock(_cpu) qtn_pm_duty_try_lock_dbg(_cpu, __FILE__, __LINE__) |
| RUBY_WEAK(qtn_pm_duty_try_lock_dbg) int |
| qtn_pm_duty_try_lock_dbg(QTN_SOC_CPU current_cpu, char *caller, int caller_line) |
| #else |
| RUBY_WEAK(qtn_pm_duty_try_lock) int |
| qtn_pm_duty_try_lock(QTN_SOC_CPU current_cpu) |
| #endif |
| { |
| int ret = 0; |
| unsigned long flags; |
| uint32_t fail_sem = 0; |
| |
| if (__qtn_mproc_sync_spin_try_lock(current_cpu, QTN_ALL_SOC_CPU, QTN_SEM_BB_MUTEX_SEMNUM, &flags, &fail_sem)) { |
| u_int32_t lock = qtn_mproc_sync_addr(&qtn_mproc_sync_shared_params_get()->pm_duty_lock); |
| if (!qtn_mproc_sync_mem_read(lock)) { |
| qtn_mproc_sync_mem_write_wmb(lock, 1); |
| ret = 1; |
| } |
| __qtn_mproc_sync_spin_unlock(current_cpu, QTN_ALL_SOC_CPU, QTN_SEM_BB_MUTEX_SEMNUM, &flags); |
| } |
| |
| return ret; |
| } |
| |
| #if QTN_SEM_TRACE |
| #define qtn_pm_duty_unlock(_cpu) qtn_pm_duty_unlock_dbg(_cpu, __FILE__, __LINE__) |
| RUBY_WEAK(qtn_pm_duty_unlock_dbg) void |
| qtn_pm_duty_unlock_dbg(QTN_SOC_CPU current_cpu, char *caller, int caller_line) |
| #else |
| RUBY_WEAK(qtn_pm_duty_unlock) void |
| qtn_pm_duty_unlock(QTN_SOC_CPU current_cpu) |
| #endif |
| { |
| u_int32_t lock = qtn_mproc_sync_addr(&qtn_mproc_sync_shared_params_get()->pm_duty_lock); |
| unsigned long flags; |
| |
| __qtn_mproc_sync_spin_lock(current_cpu, QTN_ALL_SOC_CPU, QTN_SEM_BB_MUTEX_SEMNUM, &flags); |
| qtn_mproc_sync_mem_write_wmb(lock, 0); |
| __qtn_mproc_sync_spin_unlock(current_cpu, QTN_ALL_SOC_CPU, QTN_SEM_BB_MUTEX_SEMNUM, &flags); |
| } |
| |
| #endif // defined(__KERNEL__) || defined(MUC_BUILD) |
| |
| #endif /* __RUBY_PM_MPROC_H */ |
| |