int kbase_instr_hwcnt_enable(struct kbase_context *kctx,
struct kbase_uk_hwcnt_setup *setup)
{
struct kbase_device *kbdev;
bool access_allowed;
int err;
kbdev = kctx->kbdev;
/* Determine if the calling task has access to this capability */
access_allowed = kbase_security_has_capability(kctx,
KBASE_SEC_INSTR_HW_COUNTERS_COLLECT,
KBASE_SEC_FLAG_NOAUDIT);
if (!access_allowed)
return -EINVAL;
/* Mark the context as active so the GPU is kept turned on */
/* A suspend won't happen here, because we're in a syscall from a
* userspace thread. */
kbase_pm_context_active(kbdev);
/* Schedule the context in */
kbasep_js_schedule_privileged_ctx(kbdev, kctx);
err = kbase_instr_hwcnt_enable_internal(kbdev, kctx, setup);
if (err) {
/* Release the context. This had its own Power Manager Active
* reference */
kbasep_js_release_privileged_ctx(kbdev, kctx);
/* Also release our Power Manager Active reference */
kbase_pm_context_idle(kbdev);
}
return err;
}
/**
* @brief Enable HW counters collection
*
* Note: will wait for a cache clean to complete
*/
mali_error kbase_instr_hwcnt_enable(kbase_context *kctx, kbase_uk_hwcnt_setup *setup)
{
kbase_device *kbdev;
mali_bool access_allowed;
kbdev = kctx->kbdev;
KBASE_DEBUG_ASSERT(NULL != kctx);
/* Determine if the calling task has access to this capability */
access_allowed = kbase_security_has_capability(kctx, KBASE_SEC_INSTR_HW_COUNTERS_COLLECT, KBASE_SEC_FLAG_NOAUDIT);
if (MALI_FALSE == access_allowed)
return MALI_ERROR_FUNCTION_FAILED;
return kbase_instr_hwcnt_enable_internal(kbdev, kctx, setup);
}
