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firmware: arm_sdei: add sdei_interrupt_bind/sdei_interrupt_release

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Signed-off-by: XiaoDong Huang <derrick.huang@rock-chips.com>
Change-Id: Iebc6ac271dcda9405a8fa6af9c4c501c250e4322
This commit is contained in:
XiaoDong Huang
2023-01-05 15:36:25 +08:00
committed by Tao Huang
parent 6695cdb716
commit 440f3125e8
2 changed files with 80 additions and 1 deletions
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41
drivers/firmware/arm_sdei.c
View File

@ -924,6 +924,47 @@ int sdei_event_routing_set(u32 event_num, unsigned long flags,
return err;
}
static int sdei_api_interrupt_bind(u32 intr_num, u64 *result)
{
return invoke_sdei_fn(SDEI_1_0_FN_SDEI_INTERRUPT_BIND, intr_num, 0, 0, 0,
0, result);
}
int sdei_interrupt_bind(u32 intr_num, u32 *event_num)
{
int err;
u64 result;
err = sdei_api_interrupt_bind(intr_num, &result);
if (!err)
*event_num = (u32)result;
return err;
}
static int sdei_api_interrupt_release(u32 event_num)
{
return invoke_sdei_fn(SDEI_1_0_FN_SDEI_INTERRUPT_RELEASE, event_num, 0, 0, 0,
0, NULL);
}
int sdei_interrupt_release(u32 event_num)
{
struct sdei_event *event;
mutex_lock(&sdei_events_lock);
event = sdei_event_find(event_num);
mutex_unlock(&sdei_events_lock);
if (event) {
pr_err("%s: need unregister event:%d before release\n",
__func__, event_num);
return SDEI_DENIED;
}
return sdei_api_interrupt_release(event_num);
}
#endif
static int sdei_get_conduit(struct platform_device *pdev)

40
include/linux/arm_sdei.h
View File

@ -40,13 +40,51 @@ int sdei_event_enable(u32 event_num);
int sdei_event_disable(u32 event_num);
#ifdef CONFIG_FIQ_DEBUGGER_TRUST_ZONE
#ifdef CONFIG_ARM_SDE_INTERFACE
int sdei_event_enable_nolock(u32 event_num);
int sdei_event_disable_nolock(u32 event_num);
int sdei_event_routing_set_nolock(u32 event_num, unsigned long flags,
unsigned long affinity);
int sdei_event_routing_set(u32 event_num, unsigned long flags,
unsigned long affinity);
#endif
int sdei_interrupt_bind(u32 intr_num, u32 *event_num);
int sdei_interrupt_release(u32 event_num);
#else
static inline int sdei_event_enable_nolock(u32 event_num)
{
return SDEI_NOT_SUPPORTED;
}
static inline int sdei_event_disable_nolock(u32 event_num)
{
return SDEI_NOT_SUPPORTED;
}
static inline int sdei_event_routing_set_nolock(u32 event_num,
unsigned long flags,
unsigned long affinity)
{
return SDEI_NOT_SUPPORTED;
}
static inline int sdei_event_routing_set(u32 event_num,
unsigned long flags,
unsigned long affinity)
{
return SDEI_NOT_SUPPORTED;
}
static inline int sdei_interrupt_bind(u32 intr_num, u32 *event_num)
{
return SDEI_NOT_SUPPORTED;
}
static inline int sdei_interrupt_release(u32 event_num)
{
return SDEI_NOT_SUPPORTED;
}
#endif /* CONFIG_ARM_SDE_INTERFACE */
#endif /* CONFIG_FIQ_DEBUGGER_TRUST_ZONE */
#ifdef CONFIG_ARM_SDE_INTERFACE
/* For use by arch code when CPU hotplug notifiers are not appropriate. */