mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-09-20 07:08:59 +00:00
94 lines
4 KiB
C++
94 lines
4 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <exosphere.hpp>
|
|
#include "actmon_registers.hpp"
|
|
|
|
namespace ams::actmon {
|
|
|
|
namespace {
|
|
|
|
constinit uintptr_t g_register_address = secmon::MemoryRegionPhysicalDeviceActivityMonitor.GetAddress();
|
|
|
|
constinit InterruptHandler g_interrupt_handler = nullptr;
|
|
|
|
}
|
|
|
|
void SetRegisterAddress(uintptr_t address) {
|
|
g_register_address = address;
|
|
}
|
|
|
|
void HandleInterrupt() {
|
|
/* Get the registers. */
|
|
const uintptr_t ACTMON = g_register_address;
|
|
|
|
/* Disable the actmon interrupt. */
|
|
reg::Write(ACTMON + ACTMON_COP_CTRL, ACTMON_REG_BITS_ENUM(COP_CTRL_ENB, DISABLE));
|
|
|
|
/* Update the interrupt status. */
|
|
reg::Write(ACTMON + ACTMON_COP_INTR_STATUS, reg::Read(ACTMON + ACTMON_COP_INTR_STATUS));
|
|
|
|
/* Invoke the handler. */
|
|
if (g_interrupt_handler != nullptr) {
|
|
g_interrupt_handler();
|
|
g_interrupt_handler = nullptr;
|
|
}
|
|
}
|
|
|
|
void StartMonitoringBpmp(InterruptHandler handler) {
|
|
/* Get the registers. */
|
|
const uintptr_t ACTMON = g_register_address;
|
|
|
|
/* Configure the activity monitor to poll once per microsecond. */
|
|
reg::Write(ACTMON + ACTMON_GLB_PERIOD_CTRL, ACTMON_REG_BITS_ENUM (GLB_PERIOD_CTRL_SOURCE, USEC),
|
|
ACTMON_REG_BITS_VALUE(GLB_PERIOD_CTRL_SAMPLE_PERIOD, 0));
|
|
|
|
/* Configure the activity monitor to generate an interrupt the first time the event occurs. */
|
|
reg::Write(ACTMON + ACTMON_COP_UPPER_WMARK, 0);
|
|
|
|
/* Set the interrupt handler. */
|
|
g_interrupt_handler = handler;
|
|
|
|
/* Configure the activity monitor to generate events whenever the bpmp is woken up. */
|
|
reg::Write(ACTMON + ACTMON_COP_CTRL, ACTMON_REG_BITS_ENUM (COP_CTRL_ENB, ENABLE),
|
|
ACTMON_REG_BITS_ENUM (COP_CTRL_CONSECUTIVE_ABOVE_WMARK_EN, ENABLE),
|
|
ACTMON_REG_BITS_ENUM (COP_CTRL_CONSECUTIVE_BELOW_WMARK_EN, DISABLE),
|
|
ACTMON_REG_BITS_VALUE(COP_CTRL_ABOVE_WMARK_NUM, 0),
|
|
ACTMON_REG_BITS_VALUE(COP_CTRL_BELOW_WMARK_NUM, 0),
|
|
ACTMON_REG_BITS_ENUM (COP_CTRL_WHEN_OVERFLOW_EN, DISABLE),
|
|
ACTMON_REG_BITS_ENUM (COP_CTRL_AVG_ABOVE_WMARK_EN, DISABLE),
|
|
ACTMON_REG_BITS_ENUM (COP_CTRL_AVG_BELOW_WMARK_EN, DISABLE),
|
|
ACTMON_REG_BITS_ENUM (COP_CTRL_AT_END_EN, DISABLE),
|
|
ACTMON_REG_BITS_ENUM (COP_CTRL_ENB_PERIODIC, ENABLE));
|
|
|
|
/* Read the activity monitor control register to make sure our configuration takes. */
|
|
reg::Read(ACTMON + ACTMON_COP_CTRL);
|
|
}
|
|
|
|
void StopMonitoringBpmp() {
|
|
/* Get the registers. */
|
|
const uintptr_t ACTMON = g_register_address;
|
|
|
|
/* Disable the actmon interrupt. */
|
|
reg::Write(ACTMON + ACTMON_COP_CTRL, ACTMON_REG_BITS_ENUM(COP_CTRL_ENB, DISABLE));
|
|
|
|
/* Update the interrupt status. */
|
|
reg::Write(ACTMON + ACTMON_COP_INTR_STATUS, reg::Read(ACTMON + ACTMON_COP_INTR_STATUS));
|
|
|
|
/* Clear the interrupt handler. */
|
|
g_interrupt_handler = nullptr;
|
|
}
|
|
|
|
} |