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Diffstat (limited to 'drivers/misc/habanalabs/habanalabs.h')
-rw-r--r--drivers/misc/habanalabs/habanalabs.h19
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
index 1ecdcf8b763a..194d83352696 100644
--- a/drivers/misc/habanalabs/habanalabs.h
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -578,8 +578,9 @@ enum hl_pll_frequency {
* @mmu_invalidate_cache_range: flush specific MMU STLB cache lines with
* ASID-VA-size mask.
* @send_heartbeat: send is-alive packet to ArmCP and verify response.
- * @enable_clock_gating: enable clock gating for reducing power consumption.
- * @disable_clock_gating: disable clock for accessing registers on HBW.
+ * @set_clock_gating: enable/disable clock gating per engine according to
+ * clock gating mask in hdev
+ * @disable_clock_gating: disable clock gating completely
* @debug_coresight: perform certain actions on Coresight for debugging.
* @is_device_idle: return true if device is idle, false otherwise.
* @soft_reset_late_init: perform certain actions needed after soft reset.
@@ -587,7 +588,11 @@ enum hl_pll_frequency {
* @hw_queues_unlock: release H/W queues lock.
* @get_pci_id: retrieve PCI ID.
* @get_eeprom_data: retrieve EEPROM data from F/W.
- * @send_cpu_message: send buffer to ArmCP.
+ * @send_cpu_message: send message to F/W. If the message is timedout, the
+ * driver will eventually reset the device. The timeout can
+ * be determined by the calling function or it can be 0 and
+ * then the timeout is the default timeout for the specific
+ * ASIC
* @get_hw_state: retrieve the H/W state
* @pci_bars_map: Map PCI BARs.
* @set_dram_bar_base: Set DRAM BAR to map specific device address. Returns
@@ -680,7 +685,7 @@ struct hl_asic_funcs {
int (*mmu_invalidate_cache_range)(struct hl_device *hdev, bool is_hard,
u32 asid, u64 va, u64 size);
int (*send_heartbeat)(struct hl_device *hdev);
- void (*enable_clock_gating)(struct hl_device *hdev);
+ void (*set_clock_gating)(struct hl_device *hdev);
void (*disable_clock_gating)(struct hl_device *hdev);
int (*debug_coresight)(struct hl_device *hdev, void *data);
bool (*is_device_idle)(struct hl_device *hdev, u32 *mask,
@@ -1398,6 +1403,9 @@ struct hl_device_idle_busy_ts {
* @max_power: the max power of the device, as configured by the sysadmin. This
* value is saved so in case of hard-reset, the driver will restore
* this value and update the F/W after the re-initialization
+ * @clock_gating_mask: is clock gating enabled. bitmask that represents the
+ * different engines. See debugfs-driver-habanalabs for
+ * details.
* @in_reset: is device in reset flow.
* @curr_pll_profile: current PLL profile.
* @cs_active_cnt: number of active command submissions on this device (active
@@ -1425,7 +1433,6 @@ struct hl_device_idle_busy_ts {
* @init_done: is the initialization of the device done.
* @mmu_enable: is MMU enabled.
* @mmu_huge_page_opt: is MMU huge pages optimization enabled.
- * @clock_gating: is clock gating enabled.
* @device_cpu_disabled: is the device CPU disabled (due to timeouts)
* @dma_mask: the dma mask that was set for this device
* @in_debug: is device under debug. This, together with fpriv_list, enforces
@@ -1493,6 +1500,7 @@ struct hl_device {
atomic64_t dram_used_mem;
u64 timeout_jiffies;
u64 max_power;
+ u64 clock_gating_mask;
atomic_t in_reset;
enum hl_pll_frequency curr_pll_profile;
int cs_active_cnt;
@@ -1514,7 +1522,6 @@ struct hl_device {
u8 dram_default_page_mapping;
u8 pmmu_huge_range;
u8 init_done;
- u8 clock_gating;
u8 device_cpu_disabled;
u8 dma_mask;
u8 in_debug;