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arch/xtensa: Remove XTOS dependency in irq_lock()

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This whole file is written to assume XEA2, so there's no value to
using an abstraction call here.  Write to the RSIL instruction
directly.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This commit is contained in:
Andy Ross 2021-02-14 16:31:22 -08:00 • committed by Anas Nashif
commit 4da174e1f7
1 changed files with 8 additions and 3 deletions
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11
include/arch/xtensa/irq.h
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@ -6,7 +6,8 @@
#ifndef ZEPHYR_INCLUDE_ARCH_XTENSA_XTENSA_IRQ_H_
#define ZEPHYR_INCLUDE_ARCH_XTENSA_XTENSA_IRQ_H_
#include <xtensa/xtruntime.h>
#include <toolchain.h>
#include <xtensa/config/core-isa.h>
#define CONFIG_GEN_IRQ_START_VECTOR 0
@ -105,13 +106,17 @@ static ALWAYS_INLINE void z_xtensa_irq_disable(uint32_t irq)
static ALWAYS_INLINE unsigned int arch_irq_lock(void)
{
unsigned int key = XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL);
unsigned int key;
__asm__ volatile("rsil %0, %1"
: "=r"(key) : "i"(XCHAL_EXCM_LEVEL) : "memory");
return key;
}
static ALWAYS_INLINE void arch_irq_unlock(unsigned int key)
{
XTOS_RESTORE_INTLEVEL(key);
__asm__ volatile("wsr.ps %0; rsync"
:: "r"(key) : "memory");
}
static ALWAYS_INLINE bool arch_irq_unlocked(unsigned int key)