add gic&gtimer interface

This commit is contained in:
fenghuijie 2021-04-08 15:46:15 +08:00
parent 11c20878c5
commit 0b4416f0b4
7 changed files with 691 additions and 84 deletions

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@ -10,6 +10,11 @@
#ifndef __CP15_H__
#define __CP15_H__
#define __get_cp(cp, op1, Rt, CRn, CRm, op2) __asm__ volatile("MRC p" # cp ", " # op1 ", %0, c" # CRn ", c" # CRm ", " # op2 : "=r" (Rt) : : "memory" )
#define __set_cp(cp, op1, Rt, CRn, CRm, op2) __asm__ volatile("MCR p" # cp ", " # op1 ", %0, c" # CRn ", c" # CRm ", " # op2 : : "r" (Rt) : "memory" )
#define __get_cp64(cp, op1, Rt, CRm) __asm__ volatile("MRRC p" # cp ", " # op1 ", %Q0, %R0, c" # CRm : "=r" (Rt) : : "memory" )
#define __set_cp64(cp, op1, Rt, CRm) __asm__ volatile("MCRR p" # cp ", " # op1 ", %Q0, %R0, c" # CRm : : "r" (Rt) : "memory" )
unsigned long rt_cpu_get_smp_id(void);
void rt_cpu_mmu_disable(void);

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@ -17,6 +17,10 @@
#include "gic.h"
#include "cp15.h"
#ifdef RT_USING_FINSH
#include <finsh.h>
#endif
struct arm_gic
{
rt_uint32_t offset; /* the first interrupt index in the vector table */
@ -28,6 +32,8 @@ struct arm_gic
/* 'ARM_GIC_MAX_NR' is the number of cores */
static struct arm_gic _gic_table[ARM_GIC_MAX_NR];
/** Macro to access the Generic Interrupt Controller Interface (GICC)
*/
#define GIC_CPU_CTRL(hw_base) __REG32((hw_base) + 0x00)
#define GIC_CPU_PRIMASK(hw_base) __REG32((hw_base) + 0x04)
#define GIC_CPU_BINPOINT(hw_base) __REG32((hw_base) + 0x08)
@ -35,7 +41,10 @@ static struct arm_gic _gic_table[ARM_GIC_MAX_NR];
#define GIC_CPU_EOI(hw_base) __REG32((hw_base) + 0x10)
#define GIC_CPU_RUNNINGPRI(hw_base) __REG32((hw_base) + 0x14)
#define GIC_CPU_HIGHPRI(hw_base) __REG32((hw_base) + 0x18)
#define GIC_CPU_IIDR(hw_base) __REG32((hw_base) + 0xFC)
/** Macro to access the Generic Interrupt Controller Distributor (GICD)
*/
#define GIC_DIST_CTRL(hw_base) __REG32((hw_base) + 0x000)
#define GIC_DIST_TYPE(hw_base) __REG32((hw_base) + 0x004)
#define GIC_DIST_IGROUP(hw_base, n) __REG32((hw_base) + 0x080 + ((n)/32) * 4)
@ -50,6 +59,7 @@ static struct arm_gic _gic_table[ARM_GIC_MAX_NR];
#define GIC_DIST_CONFIG(hw_base, n) __REG32((hw_base) + 0xc00 + ((n)/16) * 4)
#define GIC_DIST_SOFTINT(hw_base) __REG32((hw_base) + 0xf00)
#define GIC_DIST_CPENDSGI(hw_base, n) __REG32((hw_base) + 0xf10 + ((n)/4) * 4)
#define GIC_DIST_SPENDSGI(hw_base, n) __REG32((hw_base) + 0xf20 + ((n)/4) * 4)
#define GIC_DIST_ICPIDR2(hw_base) __REG32((hw_base) + 0xfe8)
static unsigned int _gic_max_irq;
@ -90,7 +100,7 @@ void arm_gic_mask(rt_uint32_t index, int irq)
GIC_DIST_ENABLE_CLEAR(_gic_table[index].dist_hw_base, irq) = mask;
}
void arm_gic_clear_pending(rt_uint32_t index, int irq)
void arm_gic_umask(rt_uint32_t index, int irq)
{
rt_uint32_t mask = 1 << (irq % 32);
@ -99,7 +109,107 @@ void arm_gic_clear_pending(rt_uint32_t index, int irq)
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
GIC_DIST_PENDING_CLEAR(_gic_table[index].dist_hw_base, irq) = mask;
GIC_DIST_ENABLE_SET(_gic_table[index].dist_hw_base, irq) = mask;
}
rt_uint32_t arm_gic_get_pending_irq(rt_uint32_t index, int irq)
{
rt_uint32_t pend;
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
if (irq >= 16)
{
pend = (GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base, irq) >> (irq % 32)) & 0x1;
}
else
{
/* INTID 0-15 Software Generated Interrupt */
pend = (GIC_DIST_SPENDSGI(_gic_table[index].dist_hw_base, irq) >> ((irq % 4) * 8)) & 0xFF;
/* No CPU identification offered */
if (pend != 0)
{
pend = 1;
}
else
{
pend = 0;
}
}
return (pend);
}
void arm_gic_set_pending_irq(rt_uint32_t index, int irq)
{
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
if (irq >= 16)
{
GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base, irq) = 1 << (irq % 32);
}
else
{
/* INTID 0-15 Software Generated Interrupt */
/* Forward the interrupt to the CPU interface that requested it */
GIC_DIST_SOFTINT(_gic_table[index].dist_hw_base) = (irq | 0x02000000);
}
}
void arm_gic_clear_pending_irq(rt_uint32_t index, int irq)
{
rt_uint32_t mask;
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
if (irq >= 16)
{
mask = 1 << (irq % 32);
GIC_DIST_PENDING_CLEAR(_gic_table[index].dist_hw_base, irq) = mask;
}
else
{
mask = 1 << ((irq % 4) * 8);
GIC_DIST_CPENDSGI(_gic_table[index].dist_hw_base, irq) = mask;
}
}
void arm_gic_set_configuration(rt_uint32_t index, int irq, uint32_t config)
{
rt_uint32_t icfgr;
rt_uint32_t shift;
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
icfgr = GIC_DIST_CONFIG(_gic_table[index].dist_hw_base, irq);
shift = (irq % 16) << 1;
icfgr &= (~(3 << shift));
icfgr |= (config << shift);
GIC_DIST_CONFIG(_gic_table[index].dist_hw_base, irq) = icfgr;
}
rt_uint32_t arm_gic_get_configuration(rt_uint32_t index, int irq)
{
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
return (GIC_DIST_CONFIG(_gic_table[index].dist_hw_base, irq) >> ((irq % 16) >> 1));
}
void arm_gic_clear_active(rt_uint32_t index, int irq)
@ -126,70 +236,140 @@ void arm_gic_set_cpu(rt_uint32_t index, int irq, unsigned int cpumask)
old_tgt = GIC_DIST_TARGET(_gic_table[index].dist_hw_base, irq);
old_tgt &= ~(0x0FFUL << ((irq % 4)*8));
old_tgt |= cpumask << ((irq % 4)*8);
old_tgt &= ~(0x0FF << ((irq % 4)*8));
old_tgt |= cpumask << ((irq % 4)*8);
GIC_DIST_TARGET(_gic_table[index].dist_hw_base, irq) = old_tgt;
}
void arm_gic_umask(rt_uint32_t index, int irq)
rt_uint32_t arm_gic_get_target_cpu(rt_uint32_t index, int irq)
{
rt_uint32_t mask = 1 << (irq % 32);
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
return (GIC_DIST_TARGET(_gic_table[index].dist_hw_base, irq) >> ((irq % 4) * 8)) & 0xFF;
}
void arm_gic_set_priority(rt_uint32_t index, int irq, rt_uint32_t priority)
{
rt_uint32_t mask;
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
GIC_DIST_ENABLE_SET(_gic_table[index].dist_hw_base, irq) = mask;
mask = GIC_DIST_PRI(_gic_table[index].dist_hw_base, irq);
mask &= ~(0xFF << ((irq % 4) * 8));
mask |= ((priority & 0xFF) << ((irq % 4) * 8));
GIC_DIST_PRI(_gic_table[index].dist_hw_base, irq) = mask;
}
void arm_gic_dump_type(rt_uint32_t index)
rt_uint32_t arm_gic_get_priority(rt_uint32_t index, int irq)
{
unsigned int gic_type;
RT_ASSERT(index < ARM_GIC_MAX_NR);
gic_type = GIC_DIST_TYPE(_gic_table[index].dist_hw_base);
rt_kprintf("GICv%d on %p, max IRQs: %d, %s security extension(%08x)\n",
(GIC_DIST_ICPIDR2(_gic_table[index].dist_hw_base) >> 4) & 0xf,
_gic_table[index].dist_hw_base,
_gic_max_irq,
gic_type & (1 << 10) ? "has" : "no",
gic_type);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
return (GIC_DIST_PRI(_gic_table[index].dist_hw_base, irq) >> ((irq % 4) * 8)) & 0xFF;
}
void arm_gic_dump(rt_uint32_t index)
void arm_gic_set_interface_prior_mask(rt_uint32_t index, rt_uint32_t priority)
{
unsigned int i, k;
RT_ASSERT(index < ARM_GIC_MAX_NR);
k = GIC_CPU_HIGHPRI(_gic_table[index].cpu_hw_base);
rt_kprintf("--- high pending priority: %d(%08x)\n", k, k);
rt_kprintf("--- hw mask ---\n");
for (i = 0; i < _gic_max_irq / 32; i++)
{
rt_kprintf("0x%08x, ",
GIC_DIST_ENABLE_SET(_gic_table[index].dist_hw_base,
i * 32));
}
rt_kprintf("\n--- hw pending ---\n");
for (i = 0; i < _gic_max_irq / 32; i++)
{
rt_kprintf("0x%08x, ",
GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base,
i * 32));
}
rt_kprintf("\n--- hw active ---\n");
for (i = 0; i < _gic_max_irq / 32; i++)
{
rt_kprintf("0x%08x, ",
GIC_DIST_ACTIVE_SET(_gic_table[index].dist_hw_base,
i * 32));
}
rt_kprintf("\n");
/* set priority mask */
GIC_CPU_PRIMASK(_gic_table[index].cpu_hw_base) = priority & 0xFF;
}
rt_uint32_t arm_gic_get_interface_prior_mask(rt_uint32_t index)
{
RT_ASSERT(index < ARM_GIC_MAX_NR);
return GIC_CPU_PRIMASK(_gic_table[index].cpu_hw_base);
}
void arm_gic_set_binary_point(rt_uint32_t index, rt_uint32_t binary_point)
{
GIC_CPU_BINPOINT(_gic_table[index].cpu_hw_base) = binary_point & 0x7;
}
rt_uint32_t arm_gic_get_binary_point(rt_uint32_t index)
{
return GIC_CPU_BINPOINT(_gic_table[index].cpu_hw_base);
}
rt_uint32_t arm_gic_get_irq_status(rt_uint32_t index, int irq)
{
rt_uint32_t pending;
rt_uint32_t active;
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
active = (GIC_DIST_ACTIVE_SET(_gic_table[index].dist_hw_base, irq) >> (irq % 32)) & 0x1;
pending = (GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base, irq) >> (irq % 32)) & 0x1;
return ((active << 1) | pending);
}
void arm_gic_send_sgi(rt_uint32_t index, int irq, rt_uint32_t target_list, rt_uint32_t filter_list)
{
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
GIC_DIST_SOFTINT(_gic_table[index].dist_hw_base) = ((filter_list & 0x3) << 24) | ((target_list & 0xFF) << 16) | (irq & 0x0F);
}
rt_uint32_t arm_gic_get_high_pending_irq(rt_uint32_t index)
{
RT_ASSERT(index < ARM_GIC_MAX_NR);
return GIC_CPU_HIGHPRI(_gic_table[index].cpu_hw_base);
}
rt_uint32_t arm_gic_get_interface_id(rt_uint32_t index)
{
RT_ASSERT(index < ARM_GIC_MAX_NR);
return GIC_CPU_IIDR(_gic_table[index].cpu_hw_base);
}
void arm_gic_set_group(rt_uint32_t index, int irq, rt_uint32_t group)
{
uint32_t igroupr;
uint32_t shift;
RT_ASSERT(index < ARM_GIC_MAX_NR);
RT_ASSERT(group <= 1);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
igroupr = GIC_DIST_IGROUP(_gic_table[index].dist_hw_base, irq);
shift = (irq % 32);
igroupr &= (~(1 << shift));
igroupr |= ( (group & 0x1) << shift);
GIC_DIST_IGROUP(_gic_table[index].dist_hw_base, irq) = igroupr;
}
rt_uint32_t arm_gic_get_group(rt_uint32_t index, int irq)
{
RT_ASSERT(index < ARM_GIC_MAX_NR);
irq = irq - _gic_table[index].offset;
RT_ASSERT(irq >= 0);
return (GIC_DIST_IGROUP(_gic_table[index].dist_hw_base, irq) >> (irq % 32)) & 0x1;
}
#ifdef RT_USING_FINSH
#include <finsh.h>
FINSH_FUNCTION_EXPORT_ALIAS(arm_gic_dump, gic, show gic status);
#endif
int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start)
{
@ -265,36 +445,50 @@ int arm_gic_cpu_init(rt_uint32_t index, rt_uint32_t cpu_base)
return 0;
}
void arm_gic_set_group(rt_uint32_t index, int vector, int group)
void arm_gic_dump_type(rt_uint32_t index)
{
/* As for GICv2, there are only group0 and group1. */
RT_ASSERT(group <= 1);
RT_ASSERT(vector < _gic_max_irq);
unsigned int gic_type;
if (group == 0)
{
GIC_DIST_IGROUP(_gic_table[index].dist_hw_base,
vector) &= ~(1 << (vector % 32));
}
else if (group == 1)
{
GIC_DIST_IGROUP(_gic_table[index].dist_hw_base,
vector) |= (1 << (vector % 32));
}
gic_type = GIC_DIST_TYPE(_gic_table[index].dist_hw_base);
rt_kprintf("GICv%d on %p, max IRQs: %d, %s security extension(%08x)\n",
(GIC_DIST_ICPIDR2(_gic_table[index].dist_hw_base) >> 4) & 0xf,
_gic_table[index].dist_hw_base,
_gic_max_irq,
gic_type & (1 << 10) ? "has" : "no",
gic_type);
}
#ifdef RT_USING_SMP
void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask)
{
/* note: ipi_vector maybe different with irq_vector */
GIC_DIST_SOFTINT(_gic_table[0].dist_hw_base) = (cpu_mask << 16) | ipi_vector;
void arm_gic_dump(rt_uint32_t index)
{
unsigned int i, k;
k = GIC_CPU_HIGHPRI(_gic_table[index].cpu_hw_base);
rt_kprintf("--- high pending priority: %d(%08x)\n", k, k);
rt_kprintf("--- hw mask ---\n");
for (i = 0; i < _gic_max_irq / 32; i++)
{
rt_kprintf("0x%08x, ",
GIC_DIST_ENABLE_SET(_gic_table[index].dist_hw_base,
i * 32));
}
rt_kprintf("\n--- hw pending ---\n");
for (i = 0; i < _gic_max_irq / 32; i++)
{
rt_kprintf("0x%08x, ",
GIC_DIST_PENDING_SET(_gic_table[index].dist_hw_base,
i * 32));
}
rt_kprintf("\n--- hw active ---\n");
for (i = 0; i < _gic_max_irq / 32; i++)
{
rt_kprintf("0x%08x, ",
GIC_DIST_ACTIVE_SET(_gic_table[index].dist_hw_base,
i * 32));
}
rt_kprintf("\n");
}
#ifdef RT_USING_FINSH
FINSH_FUNCTION_EXPORT_ALIAS(arm_gic_dump, gic, show gic status);
#endif
#ifdef RT_USING_SMP
void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler)
{
/* note: ipi_vector maybe different with irq_vector */
rt_hw_interrupt_install(ipi_vector, ipi_isr_handler, 0, "IPI_HANDLER");
}
#endif

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@ -14,19 +14,46 @@
#include <rthw.h>
#include <board.h>
int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start);
int arm_gic_cpu_init(rt_uint32_t index, rt_uint32_t cpu_base);
void arm_gic_mask(rt_uint32_t index, int irq);
void arm_gic_umask(rt_uint32_t index, int irq);
void arm_gic_set_cpu(rt_uint32_t index, int irq, unsigned int cpumask);
void arm_gic_set_group(rt_uint32_t index, int vector, int group);
int arm_gic_get_active_irq(rt_uint32_t index);
void arm_gic_ack(rt_uint32_t index, int irq);
void arm_gic_mask(rt_uint32_t index, int irq);
void arm_gic_umask(rt_uint32_t index, int irq);
rt_uint32_t arm_gic_get_pending_irq(rt_uint32_t index, int irq);
void arm_gic_set_pending_irq(rt_uint32_t index, int irq);
void arm_gic_clear_pending_irq(rt_uint32_t index, int irq);
void arm_gic_set_configuration(rt_uint32_t index, int irq, uint32_t config);
rt_uint32_t arm_gic_get_configuration(rt_uint32_t index, int irq);
void arm_gic_clear_active(rt_uint32_t index, int irq);
void arm_gic_clear_pending(rt_uint32_t index, int irq);
void arm_gic_set_cpu(rt_uint32_t index, int irq, unsigned int cpumask);
rt_uint32_t arm_gic_get_target_cpu(rt_uint32_t index, int irq);
void arm_gic_set_priority(rt_uint32_t index, int irq, rt_uint32_t priority);
rt_uint32_t arm_gic_get_priority(rt_uint32_t index, int irq);
void arm_gic_set_interface_prior_mask(rt_uint32_t index, rt_uint32_t priority);
rt_uint32_t arm_gic_get_interface_prior_mask(rt_uint32_t index);
void arm_gic_set_binary_point(rt_uint32_t index, rt_uint32_t binary_point);
rt_uint32_t arm_gic_get_binary_point(rt_uint32_t index);
rt_uint32_t arm_gic_get_irq_status(rt_uint32_t index, int irq);
void arm_gic_send_sgi(rt_uint32_t index, int irq, rt_uint32_t target_list, rt_uint32_t filter_list);
rt_uint32_t arm_gic_get_high_pending_irq(rt_uint32_t index);
rt_uint32_t arm_gic_get_interface_id(rt_uint32_t index);
void arm_gic_set_group(rt_uint32_t index, int irq, rt_uint32_t group);
rt_uint32_t arm_gic_get_group(rt_uint32_t index, int irq);
int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start);
int arm_gic_cpu_init(rt_uint32_t index, rt_uint32_t cpu_base);
void arm_gic_dump_type(rt_uint32_t index);
void arm_gic_dump(rt_uint32_t index);

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@ -0,0 +1,171 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-03-30 huijie.feng first version
*/
#include "cp15.h"
#include <rtdef.h>
/** Set CNTFRQ
* This function assigns the given value to PL1 Physical Timer Counter Frequency Register (CNTFRQ).
* @param value: CNTFRQ Register value to set
*/
static inline void __set_cntfrq(rt_uint32_t value)
{
__set_cp(15, 0, value, 14, 0, 0);
}
/** Get CNTFRQ
* This function returns the value of the PL1 Physical Timer Counter Frequency Register (CNTFRQ).
* return CNTFRQ Register value
*/
static inline rt_uint32_t __get_cntfrq(void)
{
rt_uint32_t result;
__get_cp(15, 0, result, 14, 0 , 0);
return result;
}
/** Set CNTP_TVAL
* This function assigns the given value to PL1 Physical Timer Value Register (CNTP_TVAL).
* param value: CNTP_TVAL Register value to set
*/
static inline void __set_cntp_tval(rt_uint32_t value)
{
__set_cp(15, 0, value, 14, 2, 0);
}
/** Get CNTP_TVAL
* This function returns the value of the PL1 Physical Timer Value Register (CNTP_TVAL).
* return CNTP_TVAL Register value
*/
static inline rt_uint32_t __get_cntp_tval(void)
{
rt_uint32_t result;
__get_cp(15, 0, result, 14, 2, 0);
return result;
}
/** Get CNTPCT
* This function returns the value of the 64 bits PL1 Physical Count Register (CNTPCT).
* return CNTPCT Register value
*/
static inline rt_uint64_t __get_cntpct(void)
{
rt_uint64_t result;
__get_cp64(15, 0, result, 14);
return result;
}
/** Set CNTP_CVAL
* This function assigns the given value to 64bits PL1 Physical Timer CompareValue Register (CNTP_CVAL).
* param value: CNTP_CVAL Register value to set
*/
static inline void __set_cntp_cval(rt_uint64_t value)
{
__set_cp64(15, 2, value, 14);
}
/** Get CNTP_CVAL
* This function returns the value of the 64 bits PL1 Physical Timer CompareValue Register (CNTP_CVAL).
* return CNTP_CVAL Register value
*/
static inline rt_uint64_t __get_cntp_cval(void)
{
rt_uint64_t result;
__get_cp64(15, 2, result, 14);
return result;
}
/** Set CNTP_CTL
* This function assigns the given value to PL1 Physical Timer Control Register (CNTP_CTL).
* param value: CNTP_CTL Register value to set
*/
static inline void __set_cntp_ctl(uint32_t value)
{
__set_cp(15, 0, value, 14, 2, 1);
}
/** Get CNTP_CTL register
* return CNTP_CTL Register value
*/
static inline rt_uint32_t __get_cntp_ctl(void)
{
rt_uint32_t result;
__get_cp(15, 0, result, 14, 2, 1);
return result;
}
/** Configures the frequency the timer shall run at.
* param value The timer frequency in Hz.
*/
void gtimer_set_counter_frequency(rt_uint32_t value)
{
__set_cntfrq(value);
__asm__ volatile ("isb 0xF":::"memory");
}
/** Sets the reset value of the timer.
* param value: The value the timer is loaded with.
*/
void gtimer_set_load_value(rt_uint32_t value)
{
__set_cntp_tval(value);
__asm__ volatile ("isb 0xF":::"memory");
}
/** Get the current counter value.
* return Current counter value.
*/
rt_uint32_t gtimer_get_current_value(void)
{
return(__get_cntp_tval());
}
/** Get the current physical counter value.
* return Current physical counter value.
*/
rt_uint64_t gtimer_get_current_physical_value(void)
{
return(__get_cntpct());
}
/** Set the physical compare value.
* param value: New physical timer compare value.
*/
void gtimer_set_physical_compare_value(rt_uint64_t value)
{
__set_cntp_cval(value);
__asm__ volatile ("isb 0xF":::"memory");
}
/** Get the physical compare value.
* return Physical compare value.
*/
rt_uint64_t gtimer_get_physical_compare_value(void)
{
return(__get_cntp_cval());
}
/** Configure the timer by setting the control value.
* param value: New timer control value.
*/
void gtimer_set_control(rt_uint32_t value)
{
__set_cntp_ctl(value);
__asm__ volatile ("isb 0xF":::"memory");
}
/** Get the control value.
* return Control value.
*/
rt_uint32_t gtimer_get_control(void)
{
return(__get_cntp_ctl());
}

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@ -0,0 +1,26 @@
/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-03-30 huijie.feng first version
*/
#ifndef __GTIMER_H__
#define __GTIMER_H__
#include <rtdef.h>
void gtimer_set_counter_frequency(rt_uint32_t value);
void gtimer_set_load_value(rt_uint32_t value);
rt_uint32_t gtimer_get_current_value(void);
rt_uint64_t gtimer_get_current_physical_value(void);
void gtimer_set_physical_compare_value(rt_uint64_t value);
rt_uint64_t gtimer_get_physical_compare_value(void);
void gtimer_set_control(rt_uint32_t value);
rt_uint32_t gtimer_get_control(void);
#endif

View File

@ -83,7 +83,7 @@ void rt_hw_interrupt_umask(int vector)
*/
int rt_hw_interrupt_get_irq(void)
{
return arm_gic_get_active_irq(0) & GIC_ACK_INTID_MASK;
return arm_gic_get_active_irq(0);
}
/**
@ -94,6 +94,150 @@ void rt_hw_interrupt_ack(int vector)
{
arm_gic_ack(0, vector);
}
/**
* This function set interrupt CPU targets.
* @param vector: the interrupt number
* cpu_mask: target cpus mask, one bit for one core
*/
void rt_hw_interrupt_set_target_cpus(int vector, unsigned int cpu_mask)
{
arm_gic_set_cpu(0, vector, cpu_mask);
}
/**
* This function get interrupt CPU targets.
* @param vector: the interrupt number
* @return target cpus mask, one bit for one core
*/
unsigned int rt_hw_interrupt_get_target_cpus(int vector)
{
return arm_gic_get_target_cpu(0, vector);
}
/**
* This function set interrupt triger mode.
* @param vector: the interrupt number
* mode: interrupt triger mode; 0: level triger, 1: edge triger
*/
void rt_hw_interrupt_set_triger_mode(int vector, unsigned int mode)
{
arm_gic_set_configuration(0, vector, mode);
}
/**
* This function get interrupt triger mode.
* @param vector: the interrupt number
* @return interrupt triger mode; 0: level triger, 1: edge triger
*/
unsigned int rt_hw_interrupt_get_triger_mode(int vector)
{
return arm_gic_get_configuration(0, vector);
}
/**
* This function set interrupt pending flag.
* @param vector: the interrupt number
*/
void rt_hw_interrupt_set_pending(int vector)
{
arm_gic_set_pending_irq(0, vector);
}
/**
* This function get interrupt pending flag.
* @param vector: the interrupt number
* @return interrupt pending flag, 0: not pending; 1: pending
*/
unsigned int rt_hw_interrupt_get_pending(int vector)
{
return arm_gic_get_pending_irq(0, vector);
}
/**
* This function clear interrupt pending flag.
* @param vector: the interrupt number
*/
void rt_hw_interrupt_clear_pending(int vector)
{
arm_gic_clear_pending_irq(0, vector);
}
/**
* This function set interrupt priority value.
* @param vector: the interrupt number
* priority: the priority of interrupt to set
*/
void rt_hw_interrupt_set_priority(int vector, unsigned int priority)
{
arm_gic_set_priority(0, vector, priority);
}
/**
* This function get interrupt priority.
* @param vector: the interrupt number
* @return interrupt priority value
*/
unsigned int rt_hw_interrupt_get_priority(int vector)
{
return arm_gic_get_priority(0, vector);
}
/**
* This function set priority masking threshold.
* @param priority: priority masking threshold
*/
void rt_hw_interrupt_set_priority_mask(unsigned int priority)
{
arm_gic_set_interface_prior_mask(0, priority);
}
/**
* This function get priority masking threshold.
* @param none
* @return priority masking threshold
*/
unsigned int rt_hw_interrupt_get_priority_mask(void)
{
return arm_gic_get_interface_prior_mask(0);
}
/**
* This function set priority grouping field split point.
* @param bits: priority grouping field split point
* @return 0: success; -1: failed
*/
int rt_hw_interrupt_set_prior_group_bits(unsigned int bits)
{
int status;
if (bits < 8)
{
arm_gic_set_binary_point(0, (7 - bits));
status = 0;
}
else
{
status = -1;
}
return (status);
}
/**
* This function get priority grouping field split point.
* @param none
* @return priority grouping field split point
*/
unsigned int rt_hw_interrupt_get_prior_group_bits(void)
{
unsigned int bp;
bp = arm_gic_get_binary_point(0) & 0x07;
return (7 - bp);
}
/**
* This function will install a interrupt service routine to a interrupt.
* @param vector the interrupt number
@ -121,3 +265,17 @@ rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
return old_handler;
}
#ifdef RT_USING_SMP
void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask)
{
arm_gic_send_sgi(0, ipi_vector, cpu_mask, 0);
}
void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler)
{
/* note: ipi_vector maybe different with irq_vector */
rt_hw_interrupt_install(ipi_vector, ipi_isr_handler, 0, "IPI_HANDLER");
}
#endif

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@ -17,9 +17,10 @@
#define INT_IRQ 0x00
#define INT_FIQ 0x01
void rt_hw_vector_init(void);
#define IRQ_MODE_TRIG_LEVEL (0x00) /* Trigger: level triggered interrupt */
#define IRQ_MODE_TRIG_EDGE (0x01) /* Trigger: edge triggered interrupt */
void rt_hw_interrupt_control(int vector, int priority, int route);
void rt_hw_vector_init(void);
void rt_hw_interrupt_init(void);
void rt_hw_interrupt_mask(int vector);
@ -28,7 +29,32 @@ void rt_hw_interrupt_umask(int vector);
int rt_hw_interrupt_get_irq(void);
void rt_hw_interrupt_ack(int vector);
void rt_hw_interrupt_set_target_cpus(int vector, unsigned int cpu_mask);
unsigned int rt_hw_interrupt_get_target_cpus(int vector);
void rt_hw_interrupt_set_triger_mode(int vector, unsigned int mode);
unsigned int rt_hw_interrupt_get_triger_mode(int vector);
void rt_hw_interrupt_set_pending(int vector);
unsigned int rt_hw_interrupt_get_pending(int vector);
void rt_hw_interrupt_clear_pending(int vector);
void rt_hw_interrupt_set_priority(int vector, unsigned int priority);
unsigned int rt_hw_interrupt_get_priority(int vector);
void rt_hw_interrupt_set_priority_mask(unsigned int priority);
unsigned int rt_hw_interrupt_get_priority_mask(void);
int rt_hw_interrupt_set_prior_group_bits(unsigned int bits);
unsigned int rt_hw_interrupt_get_prior_group_bits(void);
rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler,
void *param, const char *name);
#ifdef RT_USING_SMP
void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask);
void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler);
#endif
#endif