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user_irqs should be claimed globally not per core, since vector tabes are shared (#1183)

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Graham Sanderson 2023-01-24 08:58:01 -06:00 committed by GitHub
parent 8b8778c59b
commit a66ba7a942
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 23 additions and 4 deletions
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5
src/rp2_common/hardware_irq/include/hardware/irq.h
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@ -18,6 +18,11 @@
#define PICO_DISABLE_SHARED_IRQ_HANDLERS 0
#endif
// PICO_CONFIG: PICO_VTABLE_PER_CORE, user is using separate vector tables per core, type=bool, default=0, group=hardware_irq
#ifndef PICO_VTABLE_PER_CORE
#define PICO_VTABLE_PER_CORE 0
#endif
#ifndef __ASSEMBLER__
#include "pico.h"

18
src/rp2_common/hardware_irq/irq.c
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@ -15,7 +15,17 @@
extern void __unhandled_user_irq(void);
#if PICO_VTABLE_PER_CORE
static uint8_t user_irq_claimed[NUM_CORES];
static inline uint8_t *user_irq_claimed_ptr(void) {
return &user_irq_claimed[get_core_num()];
}
#else
static uint8_t user_irq_claimed;
static inline uint8_t *user_irq_claimed_ptr(void) {
return &user_irq_claimed;
}
#endif
static inline irq_handler_t *get_vtable(void) {
return (irq_handler_t *) scb_hw->vtor;
@ -435,20 +445,20 @@ static uint get_user_irq_claim_index(uint irq_num) {
}
void user_irq_claim(uint irq_num) {
hw_claim_or_assert(&user_irq_claimed[get_core_num()], get_user_irq_claim_index(irq_num), "User IRQ is already claimed");
hw_claim_or_assert(user_irq_claimed_ptr(), get_user_irq_claim_index(irq_num), "User IRQ is already claimed");
}
void user_irq_unclaim(uint irq_num) {
hw_claim_clear(&user_irq_claimed[get_core_num()], get_user_irq_claim_index(irq_num));
hw_claim_clear(user_irq_claimed_ptr(), get_user_irq_claim_index(irq_num));
}
int user_irq_claim_unused(bool required) {
int bit = hw_claim_unused_from_range(&user_irq_claimed[get_core_num()], required, 0, NUM_USER_IRQS - 1, "No user IRQs are available");
int bit = hw_claim_unused_from_range(user_irq_claimed_ptr(), required, 0, NUM_USER_IRQS - 1, "No user IRQs are available");
if (bit >= 0) bit = (int)NUM_IRQS - bit - 1;
return bit;
}
bool user_irq_is_claimed(uint irq_num) {
return hw_is_claimed(&user_irq_claimed[get_core_num()], get_user_irq_claim_index(irq_num));
return hw_is_claimed(user_irq_claimed_ptr(), get_user_irq_claim_index(irq_num));
}

4
src/rp2_common/pico_multicore/multicore.c
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@ -114,6 +114,10 @@ void multicore_launch_core1_with_stack(void (*entry)(void), uint32_t *stack_bott
stack_ptr[0] = (uintptr_t) entry;
stack_ptr[1] = (uintptr_t) stack_bottom;
stack_ptr[2] = (uintptr_t) core1_wrapper;
#if PICO_VTABLE_PER_CORE
#warning PICO_VTABLE_PER_CORE==1 is not currently supported in pico_multicore
panic_unsupported();
#endif
multicore_launch_core1_raw(core1_trampoline, stack_ptr, scb_hw->vtor);
}