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firmware: arm_sdei: add some functions for fiq debugger.

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1. add sdei_event_routing_set()
2. add sdei_event_routing_set_nolock()
3. add sdei_event_enable_nolock() and sdei_event_disable_nolock()

Signed-off-by: Tony Xie <tony.xie@rock-chips.com>
Change-Id: Ia2471a3ac6a9189888a465a529875957ab9661b6
This commit is contained in:
Tony Xie
2020-11-08 20:16:30 +08:00
committed by Tao Huang
parent a9e17370bb
commit c31b97d8ed
2 changed files with 48 additions and 0 deletions
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39
drivers/firmware/arm_sdei.c
View File

@@ -887,6 +887,45 @@ static void sdei_smccc_hvc(unsigned long function_id,
arm_smccc_hvc(function_id, arg0, arg1, arg2, arg3, arg4, 0, 0, res);
}
#ifdef CONFIG_FIQ_DEBUGGER_TRUST_ZONE
int sdei_event_enable_nolock(u32 event_num)
{
return sdei_api_event_enable(event_num);
}
int sdei_event_disable_nolock(u32 event_num)
{
return sdei_api_event_disable(event_num);
}
int sdei_event_routing_set_nolock(u32 event_num, unsigned long flags,
unsigned long affinity)
{
return invoke_sdei_fn(SDEI_1_0_FN_SDEI_EVENT_ROUTING_SET, event_num,
(unsigned long)flags, (unsigned long)affinity,
0, 0, 0);
}
int sdei_event_routing_set(u32 event_num, unsigned long flags,
unsigned long affinity)
{
int err = -EINVAL;
struct sdei_event *event;
mutex_lock(&sdei_events_lock);
event = sdei_event_find(event_num);
if (!event) {
mutex_unlock(&sdei_events_lock);
return -ENOENT;
}
err = sdei_event_routing_set_nolock(event_num, flags, affinity);
mutex_unlock(&sdei_events_lock);
return err;
}
#endif
static int sdei_get_conduit(struct platform_device *pdev)
{
const char *method;

9
include/linux/arm_sdei.h
View File

@@ -39,6 +39,15 @@ int sdei_event_unregister(u32 event_num);
int sdei_event_enable(u32 event_num);
int sdei_event_disable(u32 event_num);
#ifdef CONFIG_FIQ_DEBUGGER_TRUST_ZONE
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
#ifdef CONFIG_ARM_SDE_INTERFACE
/* For use by arch code when CPU hotplug notifiers are not appropriate. */
int sdei_mask_local_cpu(void);