michaelh/zephyr
1
0
Fork 0
Code Releases Activity

driver: interrupt_controller: nuclei_eclic: fixed interrupt level

Browse source 
CLIC should be the first level interrupt controller because it replaces
the basic RISC-V local interrupt.
The interrupt level in CLIC controls preemption between IRQs, rather than
specifying the number of nested interrupt controllers.
Removed CONFIG_MULTI_LEVEL_INTERRUPTS and the incorrect interrupt level.

Signed-off-by: Jimmy Zheng <jimmyzhe@andestech.com>
This commit is contained in:
Jimmy Zheng 2024-07-03 10:51:27 +08:00 • committed by Anas Nashif
commit f989ed949a
3 changed files with 2 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

1
drivers/interrupt_controller/Kconfig.clic
View file

@ -5,7 +5,6 @@ config NUCLEI_ECLIC
bool "Enhanced Core Local Interrupt Controller (ECLIC)"
default y
depends on DT_HAS_NUCLEI_ECLIC_ENABLED
select MULTI_LEVEL_INTERRUPTS
select RISCV_SOC_HAS_CUSTOM_IRQ_HANDLING if !RISCV_VECTORED_MODE
help
Interrupt controller for Nuclei SoC core.

16
drivers/interrupt_controller/intc_nuclei_eclic.c
View file

@ -12,7 +12,6 @@
#include <zephyr/arch/cpu.h>
#include <zephyr/sys/util.h>
#include <zephyr/device.h>
#include <zephyr/irq_multilevel.h>
#include <zephyr/sw_isr_table.h>
#include <zephyr/drivers/interrupt_controller/riscv_clic.h>
@ -96,14 +95,6 @@ struct CLICCTRL {
#define ECLIC_CTRL ((volatile struct CLICCTRL *)(DT_REG_ADDR_BY_IDX(DT_NODELABEL(eclic), 3)))
#define ECLIC_CTRL_SIZE (DT_REG_SIZE_BY_IDX(DT_NODELABEL(eclic), 3))
#if CONFIG_3RD_LEVEL_INTERRUPTS
#define INTERRUPT_LEVEL 2
#elif CONFIG_2ND_LEVEL_INTERRUPTS
#define INTERRUPT_LEVEL 1
#else
#define INTERRUPT_LEVEL 0
#endif
static uint8_t nlbits;
static uint8_t intctlbits;
static uint8_t max_prio;
@ -150,7 +141,7 @@ int riscv_clic_irq_is_enabled(uint32_t irq)
void riscv_clic_irq_priority_set(uint32_t irq, uint32_t pri, uint32_t flags)
{
const uint8_t prio = leftalign8(MIN(pri, max_prio), intctlbits);
const uint8_t level = leftalign8(MIN((irq_get_level(irq) - 1), max_level), nlbits);
const uint8_t level = leftalign8(max_level, nlbits);
const uint8_t intctrl = (prio | level) | (~intctrl_mask);
ECLIC_CTRL[irq].INTCTRL = intctrl;
@ -180,12 +171,9 @@ void riscv_clic_irq_set_pending(uint32_t irq)
static int nuclei_eclic_init(const struct device *dev)
{
/* check hardware support required interrupt levels */
__ASSERT_NO_MSG(ECLIC_INFO.b.intctlbits >= INTERRUPT_LEVEL);
ECLIC_MTH.w = 0;
ECLIC_CFG.w = 0;
ECLIC_CFG.b.nlbits = INTERRUPT_LEVEL;
ECLIC_CFG.b.nlbits = 0;
for (int i = 0; i < ECLIC_CTRL_SIZE; i++) {
ECLIC_CTRL[i] = (struct CLICCTRL) { 0 };
}

3
soc/gd/gd32/gd32vf103/Kconfig.defconfig.gd32vf103
View file

@ -24,9 +24,6 @@ config NUM_IRQS
default 87 if NUCLEI_ECLIC
default 16 if !NUCLEI_ECLIC
config 2ND_LEVEL_INTERRUPTS
default y
config ARCH_IRQ_VECTOR_TABLE_ALIGN
default 512 if NUCLEI_ECLIC