Commit 4745b2f0 authored by farah kassabri's avatar farah kassabri Committed by Oded Gabbay
Browse files

habanalabs: send device active message to f/w 



As part of the RAS that is done by the f/w, we should send a message
to the f/w when a user either acquires or releases the device.

Signed-off-by: default avatarfarah kassabri <fkassabri@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 0855bf8b

drivers/misc/habanalabs/common/device.c

+2 −0
Original line number Diff line number Diff line
@@ -470,6 +470,8 @@ static int hl_device_release(struct inode *inode, struct file *filp) 
	hdev->last_open_session_duration_jif =

		jiffies - hdev->last_successful_open_jif;



	hdev->asic_funcs->send_device_activity(hdev, false);



	return 0;

}

drivers/misc/habanalabs/common/firmware_if.c

+15 −0
Original line number Diff line number Diff line
@@ -454,6 +454,21 @@ void hl_fw_cpu_accessible_dma_pool_free(struct hl_device *hdev, size_t size, 
			size);

}



int hl_fw_send_device_activity(struct hl_device *hdev, bool open)

{

	struct cpucp_packet pkt;

	int rc;



	memset(&pkt, 0, sizeof(pkt));

	pkt.ctl = cpu_to_le32(CPUCP_PACKET_ACTIVE_STATUS_SET <<	CPUCP_PKT_CTL_OPCODE_SHIFT);

	pkt.value = cpu_to_le64(open);

	rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, NULL);

	if (rc)

		dev_err(hdev->dev, "failed to send device activity msg(%u)\n", open);



	return rc;

}



int hl_fw_send_heartbeat(struct hl_device *hdev)

{

	struct cpucp_packet hb_pkt;

drivers/misc/habanalabs/common/habanalabs.h

+3 −0
Original line number Diff line number Diff line
@@ -1528,6 +1528,7 @@ struct engines_data { 
 * @access_dev_mem: access device memory

 * @set_dram_bar_base: set the base of the DRAM BAR

 * @set_engine_cores: set a config command to enigne cores

 * @send_device_activity: indication to FW about device availability

 */

struct hl_asic_funcs {

	int (*early_init)(struct hl_device *hdev);
@@ -1664,6 +1665,7 @@ struct hl_asic_funcs { 
	u64 (*set_dram_bar_base)(struct hl_device *hdev, u64 addr);

	int (*set_engine_cores)(struct hl_device *hdev, u32 *core_ids,

					u32 num_cores, u32 core_command);

	int (*send_device_activity)(struct hl_device *hdev, bool open);

};
@@ -3715,6 +3717,7 @@ int hl_fw_dram_replaced_row_get(struct hl_device *hdev, 
				struct cpucp_hbm_row_info *info);

int hl_fw_dram_pending_row_get(struct hl_device *hdev, u32 *pend_rows_num);

int hl_fw_cpucp_engine_core_asid_set(struct hl_device *hdev, u32 asid);

int hl_fw_send_device_activity(struct hl_device *hdev, bool open);

int hl_pci_bars_map(struct hl_device *hdev, const char * const name[3],

			bool is_wc[3]);

int hl_pci_elbi_read(struct hl_device *hdev, u64 addr, u32 *data);

drivers/misc/habanalabs/common/habanalabs_drv.c

+2 −0
Original line number Diff line number Diff line
@@ -204,6 +204,8 @@ int hl_device_open(struct inode *inode, struct file *filp) 
		goto out_err;

	}



	rc = hdev->asic_funcs->send_device_activity(hdev, true);



	list_add(&hpriv->dev_node, &hdev->fpriv_list);

	mutex_unlock(&hdev->fpriv_list_lock);

drivers/misc/habanalabs/gaudi/gaudi.c

+6 −0
Original line number Diff line number Diff line
@@ -9132,6 +9132,11 @@ static void gaudi_add_device_attr(struct hl_device *hdev, struct attribute_group 
	dev_vrm_attr_grp->attrs = gaudi_vrm_dev_attrs;

}



static int gaudi_send_device_activity(struct hl_device *hdev, bool open)

{

	return 0;

}



static const struct hl_asic_funcs gaudi_funcs = {

	.early_init = gaudi_early_init,

	.early_fini = gaudi_early_fini,
@@ -9224,6 +9229,7 @@ static const struct hl_asic_funcs gaudi_funcs = { 
	.mmu_get_real_page_size = hl_mmu_get_real_page_size,

	.access_dev_mem = hl_access_dev_mem,

	.set_dram_bar_base = gaudi_set_hbm_bar_base,

	.send_device_activity = gaudi_send_device_activity,

};



/**