diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2021-12-16 17:31:18 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2021-12-26 15:39:53 +0300 |
| commit | f297a0e9fe7d4b4d8a24d2ce97446f2faaf9d51b (patch) | |
| tree | 58822a5158aebb7f41d730ec94852579d2a4eefe /drivers/misc/habanalabs/common/firmware_if.c | |
| parent | 519f4ed0a09cdf3834c5cbde1416acd9a979a709 (diff) | |
| download | linux-f297a0e9fe7d4b4d8a24d2ce97446f2faaf9d51b.tar.xz | |
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: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/common/firmware_if.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/firmware_if.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c index 1d0d228d4872..2cc2015c2416 100644 --- a/drivers/misc/habanalabs/common/firmware_if.c +++ b/drivers/misc/habanalabs/common/firmware_if.c @@ -1059,6 +1059,26 @@ out: 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 = |