hdev->asic_funcs->early_fini(hdev);
}
-static void set_freq_to_low_job(struct work_struct *work)
-{
- struct hl_device *hdev = container_of(work, struct hl_device,
- work_freq.work);
-
- mutex_lock(&hdev->fpriv_list_lock);
-
- if (!hdev->compute_ctx)
- hl_device_set_frequency(hdev, PLL_LOW);
-
- mutex_unlock(&hdev->fpriv_list_lock);
-
- schedule_delayed_work(&hdev->work_freq,
- usecs_to_jiffies(HL_PLL_LOW_JOB_FREQ_USEC));
-}
-
static void hl_device_heartbeat(struct work_struct *work)
{
struct hl_device *hdev = container_of(work, struct hl_device,
hdev->high_pll = hdev->asic_prop.high_pll;
- /* force setting to low frequency */
- hdev->curr_pll_profile = PLL_LOW;
-
- if (hdev->pm_mng_profile == PM_AUTO)
- hdev->asic_funcs->set_pll_profile(hdev, PLL_LOW);
- else
- hdev->asic_funcs->set_pll_profile(hdev, PLL_LAST);
-
- INIT_DELAYED_WORK(&hdev->work_freq, set_freq_to_low_job);
- schedule_delayed_work(&hdev->work_freq,
- usecs_to_jiffies(HL_PLL_LOW_JOB_FREQ_USEC));
-
if (hdev->heartbeat) {
INIT_DELAYED_WORK(&hdev->work_heartbeat, hl_device_heartbeat);
schedule_delayed_work(&hdev->work_heartbeat,
if (!hdev->late_init_done)
return;
- cancel_delayed_work_sync(&hdev->work_freq);
if (hdev->heartbeat)
cancel_delayed_work_sync(&hdev->work_heartbeat);
return 0;
}
-/*
- * hl_device_set_frequency - set the frequency of the device
- *
- * @hdev: pointer to habanalabs device structure
- * @freq: the new frequency value
- *
- * Change the frequency if needed. This function has no protection against
- * concurrency, therefore it is assumed that the calling function has protected
- * itself against the case of calling this function from multiple threads with
- * different values
- *
- * Returns 0 if no change was done, otherwise returns 1
- */
-int hl_device_set_frequency(struct hl_device *hdev, enum hl_pll_frequency freq)
-{
- if ((hdev->pm_mng_profile == PM_MANUAL) ||
- (hdev->curr_pll_profile == freq))
- return 0;
-
- dev_dbg(hdev->dev, "Changing device frequency to %s\n",
- freq == PLL_HIGH ? "high" : "low");
-
- hdev->asic_funcs->set_pll_profile(hdev, freq);
-
- hdev->curr_pll_profile = freq;
-
- return 1;
-}
-
int hl_device_set_debug_mode(struct hl_device *hdev, bool enable)
{
int rc = 0;
* @cdev_ctrl: char device for control operations only (INFO IOCTL)
* @dev: related kernel basic device structure.
* @dev_ctrl: related kernel device structure for the control device
- * @work_freq: delayed work to lower device frequency if possible.
* @work_heartbeat: delayed work for CPU-CP is-alive check.
* @device_reset_work: delayed work which performs hard reset
* @asic_name: ASIC specific name.
* @asic_specific: ASIC specific information to use only from ASIC files.
* @vm: virtual memory manager for MMU.
* @hwmon_dev: H/W monitor device.
- * @pm_mng_profile: current power management profile.
* @hl_chip_info: ASIC's sensors information.
* @device_status_description: device status description.
* @hl_debugfs: device's debugfs manager.
* @open_counter: number of successful device open operations.
* @fw_poll_interval_usec: FW status poll interval in usec.
* @in_reset: is device in reset flow.
- * @curr_pll_profile: current PLL profile.
* @card_type: Various ASICs have several card types. This indicates the card
* type of the current device.
* @major: habanalabs kernel driver major.
struct cdev cdev_ctrl;
struct device *dev;
struct device *dev_ctrl;
- struct delayed_work work_freq;
struct delayed_work work_heartbeat;
struct hl_device_reset_work device_reset_work;
char asic_name[HL_STR_MAX];
void *asic_specific;
struct hl_vm vm;
struct device *hwmon_dev;
- enum hl_pm_mng_profile pm_mng_profile;
struct hwmon_chip_info *hl_chip_info;
struct hl_dbg_device_entry hl_debugfs;
u64 fw_poll_interval_usec;
atomic_t in_reset;
ktime_t last_successful_open_ktime;
- enum hl_pll_frequency curr_pll_profile;
enum cpucp_card_types card_type;
u32 major;
u32 high_pll;
int hl_device_reset(struct hl_device *hdev, u32 flags);
void hl_hpriv_get(struct hl_fpriv *hpriv);
int hl_hpriv_put(struct hl_fpriv *hpriv);
-int hl_device_set_frequency(struct hl_device *hdev, enum hl_pll_frequency freq);
int hl_device_utilization(struct hl_device *hdev, u32 *utilization);
int hl_build_hwmon_channel_info(struct hl_device *hdev,
goto out_err;
}
- /* Device is IDLE at this point so it is legal to change PLLs.
- * There is no need to check anything because if the PLL is
- * already HIGH, the set function will return without doing
- * anything
- */
- hl_device_set_frequency(hdev, PLL_HIGH);
-
list_add(&hpriv->dev_node, &hdev->fpriv_list);
mutex_unlock(&hdev->fpriv_list_lock);
{
int rc;
- if (hdev->asic_type == ASIC_GOYA)
- hdev->pm_mng_profile = PM_AUTO;
- else
- hdev->pm_mng_profile = PM_MANUAL;
-
hdev->max_power = hdev->asic_prop.max_power_default;
hdev->asic_funcs->add_device_attr(hdev, &hl_dev_clks_attr_group);
*/
gaudi_mmu_prepare(hdev, 1);
+ hdev->asic_funcs->set_pll_profile(hdev, PLL_LAST);
+
return 0;
disable_pci_access:
prop->psoc_pci_pll_div_factor = div_fctr;
}
+/*
+ * goya_set_frequency - set the frequency of the device
+ *
+ * @hdev: pointer to habanalabs device structure
+ * @freq: the new frequency value
+ *
+ * Change the frequency if needed. This function has no protection against
+ * concurrency, therefore it is assumed that the calling function has protected
+ * itself against the case of calling this function from multiple threads with
+ * different values
+ *
+ * Returns 0 if no change was done, otherwise returns 1
+ */
+int goya_set_frequency(struct hl_device *hdev, enum hl_pll_frequency freq)
+{
+ struct goya_device *goya = hdev->asic_specific;
+
+ if ((goya->pm_mng_profile == PM_MANUAL) ||
+ (goya->curr_pll_profile == freq))
+ return 0;
+
+ dev_dbg(hdev->dev, "Changing device frequency to %s\n",
+ freq == PLL_HIGH ? "high" : "low");
+
+ goya_set_pll_profile(hdev, freq);
+
+ goya->curr_pll_profile = freq;
+
+ return 1;
+}
+
+static void goya_set_freq_to_low_job(struct work_struct *work)
+{
+ struct goya_work_freq *goya_work = container_of(work,
+ struct goya_work_freq,
+ work_freq.work);
+ struct hl_device *hdev = goya_work->hdev;
+
+ mutex_lock(&hdev->fpriv_list_lock);
+
+ if (!hdev->compute_ctx)
+ goya_set_frequency(hdev, PLL_LOW);
+
+ mutex_unlock(&hdev->fpriv_list_lock);
+
+ schedule_delayed_work(&goya_work->work_freq,
+ usecs_to_jiffies(HL_PLL_LOW_JOB_FREQ_USEC));
+}
+
int goya_late_init(struct hl_device *hdev)
{
struct asic_fixed_properties *prop = &hdev->asic_prop;
+ struct goya_device *goya = hdev->asic_specific;
int rc;
goya_fetch_psoc_frequency(hdev);
return rc;
}
+ /* force setting to low frequency */
+ goya->curr_pll_profile = PLL_LOW;
+
+ goya->pm_mng_profile = PM_AUTO;
+
+ hdev->asic_funcs->set_pll_profile(hdev, PLL_LOW);
+
+ schedule_delayed_work(&goya->goya_work->work_freq,
+ usecs_to_jiffies(HL_PLL_LOW_JOB_FREQ_USEC));
+
return 0;
}
void goya_late_fini(struct hl_device *hdev)
{
const struct hwmon_channel_info **channel_info_arr;
+ struct goya_device *goya = hdev->asic_specific;
int i = 0;
+ cancel_delayed_work_sync(&goya->goya_work->work_freq);
+
if (!hdev->hl_chip_info->info)
return;
hdev->asic_funcs->set_pci_memory_regions(hdev);
+ goya->goya_work = kmalloc(sizeof(struct goya_work_freq), GFP_KERNEL);
+ if (!goya->goya_work) {
+ rc = -ENOMEM;
+ goto free_cpu_accessible_dma_pool;
+ }
+
+ goya->goya_work->hdev = hdev;
+ INIT_DELAYED_WORK(&goya->goya_work->work_freq, goya_set_freq_to_low_job);
+
return 0;
free_cpu_accessible_dma_pool:
dma_pool_destroy(hdev->dma_pool);
+ kfree(goya->goya_work);
kfree(goya);
return 0;
#define HW_CAP_GOLDEN 0x00000400
#define HW_CAP_TPC 0x00000800
+struct goya_work_freq {
+ struct hl_device *hdev;
+ struct delayed_work work_freq;
+};
+
struct goya_device {
/* TODO: remove hw_queues_lock after moving to scheduler code */
spinlock_t hw_queues_lock;
+ struct goya_work_freq *goya_work;
u64 mme_clk;
u64 tpc_clk;
u32 events_stat_aggregate[GOYA_ASYNC_EVENT_ID_SIZE];
u32 hw_cap_initialized;
u8 device_cpu_mmu_mappings_done;
+
+ enum hl_pll_frequency curr_pll_profile;
+ enum hl_pm_mng_profile pm_mng_profile;
};
int goya_set_fixed_properties(struct hl_device *hdev);
u32 goya_get_queue_id_for_cq(struct hl_device *hdev, u32 cq_idx);
u64 goya_get_device_time(struct hl_device *hdev);
+int goya_set_frequency(struct hl_device *hdev, enum hl_pll_frequency freq);
#endif /* GOYAP_H_ */
goto fail;
}
- if (hdev->pm_mng_profile == PM_AUTO) {
+ if (goya->pm_mng_profile == PM_AUTO) {
count = -EPERM;
goto fail;
}
goto fail;
}
- if (hdev->pm_mng_profile == PM_AUTO) {
+ if (goya->pm_mng_profile == PM_AUTO) {
count = -EPERM;
goto fail;
}
goto fail;
}
- if (hdev->pm_mng_profile == PM_AUTO) {
+ if (goya->pm_mng_profile == PM_AUTO) {
count = -EPERM;
goto fail;
}
struct device_attribute *attr, char *buf)
{
struct hl_device *hdev = dev_get_drvdata(dev);
+ struct goya_device *goya = hdev->asic_specific;
if (!hl_device_operational(hdev, NULL))
return -ENODEV;
return sprintf(buf, "%s\n",
- (hdev->pm_mng_profile == PM_AUTO) ? "auto" :
- (hdev->pm_mng_profile == PM_MANUAL) ? "manual" :
+ (goya->pm_mng_profile == PM_AUTO) ? "auto" :
+ (goya->pm_mng_profile == PM_MANUAL) ? "manual" :
"unknown");
}
struct device_attribute *attr, const char *buf, size_t count)
{
struct hl_device *hdev = dev_get_drvdata(dev);
+ struct goya_device *goya = hdev->asic_specific;
if (!hl_device_operational(hdev, NULL)) {
count = -ENODEV;
if (strncmp("auto", buf, strlen("auto")) == 0) {
/* Make sure we are in LOW PLL when changing modes */
- if (hdev->pm_mng_profile == PM_MANUAL) {
- hdev->curr_pll_profile = PLL_HIGH;
- hdev->pm_mng_profile = PM_AUTO;
- hl_device_set_frequency(hdev, PLL_LOW);
+ if (goya->pm_mng_profile == PM_MANUAL) {
+ goya->curr_pll_profile = PLL_HIGH;
+ goya->pm_mng_profile = PM_AUTO;
+ goya_set_frequency(hdev, PLL_LOW);
}
} else if (strncmp("manual", buf, strlen("manual")) == 0) {
- if (hdev->pm_mng_profile == PM_AUTO) {
+ if (goya->pm_mng_profile == PM_AUTO) {
/* Must release the lock because the work thread also
* takes this lock. But before we release it, set
* the mode to manual so nothing will change if a user
* suddenly opens the device
*/
- hdev->pm_mng_profile = PM_MANUAL;
+ goya->pm_mng_profile = PM_MANUAL;
mutex_unlock(&hdev->fpriv_list_lock);
/* Flush the current work so we can return to the user
* knowing that he is the only one changing frequencies
*/
- flush_delayed_work(&hdev->work_freq);
+ if (goya->goya_work)
+ flush_delayed_work(&goya->goya_work->work_freq);
return count;
}
projects / platform / kernel / linux-rpi.git / commitdiff