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Merge "msm: ipa3: supporting hibernate & cleanup unused deepsleep API's"

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QCTECMDR Service 2024-10-09 21:53:50 -07:00 • committed by Gerrit - the friendly Code Review server
commit e42faf170b
2 changed files with 61 additions and 9 deletions
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69
drivers/platform/msm/ipa/ipa_v3/ipa.c
View file

@ -126,7 +126,7 @@ static void ipa_gsi_notify_cb(struct gsi_per_notify *notify);
static int ipa3_attach_to_smmu(void);
static int ipa3_alloc_pkt_init(void);
#ifdef CONFIG_DEEPSLEEP
#if IS_ENABLED(CONFIG_DEEPSLEEP) || IS_ENABLED(CONFIG_HIBERNATION)
static void ipa3_deepsleep_resume(void);
static void ipa3_deepsleep_suspend(void);
#endif
@ -457,17 +457,25 @@ EXPORT_SYMBOL(ipa_smmu_free_sgt);
static int ipa_pm_notify(struct notifier_block *b, unsigned long event, void *p)
{
IPAERR("Entry\n");
#if IS_ENABLED(CONFIG_DEEPSLEEP) || IS_ENABLED(CONFIG_HIBERNATION)
switch (event) {
case PM_POST_SUSPEND:
#ifdef CONFIG_DEEPSLEEP
if (mem_sleep_current == PM_SUSPEND_MEM && ipa3_ctx->deepsleep) {
IPADBG("Enter deepsleep resume\n");
ipa3_deepsleep_resume();
IPADBG("Exit deepsleep resume\n");
}
#endif
break;
case PM_POST_HIBERNATION:
/*Using the same deepsleep flag to check if freeze happened or not.*/
if (ipa3_ctx->deepsleep) {
IPADBG("Enter hibernate restore\n");
ipa3_deepsleep_resume();
IPADBG("Exit hibernate restore\n");
}
break;
}
#endif
IPAERR("Exit\n");
return NOTIFY_DONE;
}
@ -479,7 +487,11 @@ static struct notifier_block ipa_pm_notifier = {
static const struct dev_pm_ops ipa_pm_ops = {
.suspend_late = ipa3_ap_suspend,
#if IS_ENABLED(CONFIG_HIBERNATION)
.freeze_late = ipa3_ap_freeze,
#endif
.resume_early = ipa3_ap_resume,
.restore_early = ipa3_ap_resume,
};
static struct platform_driver ipa_plat_drv = {
@ -6748,7 +6760,7 @@ static int ipa3_post_init(const struct ipa3_plat_drv_res *resource_p,
ipa3_register_to_fmwk();
}
#ifdef CONFIG_DEEPSLEEP
#if IS_ENABLED(CONFIG_DEEPSLEEP) || IS_ENABLED(CONFIG_HIBERNATION)
if (!ipa3_is_ready())
ipa_fmwk_deepsleep_exit_ipa();
#endif
@ -6868,10 +6880,9 @@ static int ipa3_pil_load_ipa_fws(const char *sub_sys)
return 0;
}
#ifdef CONFIG_DEEPSLEEP
#if IS_ENABLED(CONFIG_DEEPSLEEP) || IS_ENABLED(CONFIG_HIBERNATION)
static int ipa3_pil_unload_ipa_fws(void)
{
IPADBG("PIL FW unloading process initiated sub_sys\n");
if (ipa3_ctx->subsystem_get_retval)
@ -6889,7 +6900,7 @@ static void ipa3_load_ipa_fw(struct work_struct *work)
IPADBG("Entry\n");
IPA_ACTIVE_CLIENTS_INC_SIMPLE();
result = ipa3_attach_to_smmu();
if (result) {
IPAERR("IPA attach to smmu failed %d\n", result);
@ -9650,7 +9661,7 @@ int ipa3_ap_suspend(struct device *dev)
}
}
#ifdef CONFIG_DEEPSLEEP
#if IS_ENABLED(CONFIG_DEEPSLEEP)
if (mem_sleep_current == PM_SUSPEND_MEM) {
IPADBG("Enter deepsleep suspend\n");
ipa3_deepsleep_suspend();
@ -9664,6 +9675,46 @@ int ipa3_ap_suspend(struct device *dev)
return 0;
}
#if IS_ENABLED(CONFIG_HIBERNATION)
/**
* ipa3_ap_freeze() - hibernate freeze callback for runtime_pm
* @dev: pointer to device
*
* This callback will be invoked by the runtime_pm framework when an AP
* hibernate freeze operation is invoked, usually by pressing a hibernate button.
*
* Returns -EAGAIN to runtime_pm framework in case IPA is in use by AP.
* This will postpone the suspend/freeze operation until IPA is no longer used by AP.
*/
int ipa3_ap_freeze(struct device *dev)
{
int i;
IPADBG("Enter\n");
if (!of_device_is_compatible(dev->of_node,"qcom,ipa"))
return 0;
/* In case there is a tx/rx handler in polling mode fail to suspend */
for (i = 0; i < ipa3_ctx->ipa_num_pipes; i++) {
if (ipa3_ctx->ep[i].sys &&
atomic_read(&ipa3_ctx->ep[i].sys->curr_polling_state)) {
IPAERR("EP %d is in polling state, do not suspend\n",
i);
return -EAGAIN;
}
}
IPADBG("Enter hibernate freeze\n");
ipa3_deepsleep_suspend();
IPADBG("Exit hibernate freeze\n");
ipa_pm_deactivate_all_deferred();
IPADBG("Exit\n");
return 0;
}
#endif
/**
* ipa3_ap_resume() - resume callback for runtime_pm
* @dev: pointer to device
@ -9690,7 +9741,7 @@ bool ipa3_get_lan_rx_napi(void)
}
#ifdef CONFIG_DEEPSLEEP
#if IS_ENABLED(CONFIG_DEEPSLEEP) || IS_ENABLED(CONFIG_HIBERNATION)
static void ipa3_deepsleep_suspend(void)
{
IPADBG("Entry\n");

1
drivers/platform/msm/ipa/ipa_v3/ipa_i.h
View file

@ -3115,6 +3115,7 @@ struct iommu_domain *ipa3_get_smmu_domain_by_type
int ipa3_iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot);
int ipa3_ap_suspend(struct device *dev);
int ipa3_ap_freeze(struct device *dev);
int ipa3_ap_resume(struct device *dev);
int ipa3_init_interrupts(void);
struct iommu_domain *ipa3_get_smmu_domain(void);