Commit f297a0e9 authored by Tomer Tayar's avatar Tomer Tayar Committed by Oded Gabbay
Browse files

habanalabs: add CPU-CP packet for engine core ASID cfg 



In some cases the driver cannot configure ASID of some engines due to
the security level of the relevant registers.
For this a new CPU-CP packet is introduced, which will allow the driver
to ask the F/W to do this configuration instead.

Signed-off-by: default avatarTomer Tayar <ttayar@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent 519f4ed0

drivers/misc/habanalabs/common/firmware_if.c

+20 −0
Original line number Diff line number Diff line
@@ -1059,6 +1059,26 @@ int hl_fw_dram_pending_row_get(struct hl_device *hdev, u32 *pend_rows_num) 
	return rc;

}



int hl_fw_cpucp_engine_core_asid_set(struct hl_device *hdev, u32 asid)

{

	struct cpucp_packet pkt;

	int rc;



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



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

	pkt.value = cpu_to_le64(asid);



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

						HL_CPUCP_INFO_TIMEOUT_USEC, NULL);

	if (rc)

		dev_err(hdev->dev,

			"Failed on ASID configuration request for engine core, error %d\n",

			rc);



	return rc;

}



void hl_fw_ask_hard_reset_without_linux(struct hl_device *hdev)

{

	struct static_fw_load_mgr *static_loader =

drivers/misc/habanalabs/common/habanalabs.h

+1 −0
Original line number Diff line number Diff line
@@ -3065,6 +3065,7 @@ int hl_fw_dynamic_send_protocol_cmd(struct hl_device *hdev, 
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_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/include/common/cpucp_if.h

+5 −0
Original line number Diff line number Diff line
@@ -386,6 +386,9 @@ enum pq_init_status { 
 *

 * CPUCP_PACKET_POWER_SET -

 *       Resets power history of device to 0

 *

 * CPUCP_PACKET_ENGINE_CORE_ASID_SET -

 *       Packet to perform engine core ASID configuration

 */



enum cpucp_packet_id {
@@ -434,6 +437,8 @@ enum cpucp_packet_id { 
	CPUCP_PACKET_HBM_REPLACED_ROWS_INFO_GET,/* internal */

	CPUCP_PACKET_HBM_PENDING_ROWS_STATUS,	/* internal */

	CPUCP_PACKET_POWER_SET,			/* internal */

	CPUCP_PACKET_RESERVED,			/* not used */

	CPUCP_PACKET_ENGINE_CORE_ASID_SET,	/* internal */

};



#define CPUCP_PACKET_FENCE_VAL	0xFE8CE7A5