diff options
| -rw-r--r-- | drivers/misc/habanalabs/common/firmware_if.c | 41 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/common/habanalabs.h | 9 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudi.c | 48 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudiP.h | 5 |
4 files changed, 56 insertions, 47 deletions
diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c index ce87053d4fde..2e4d04ec6b53 100644 --- a/drivers/misc/habanalabs/common/firmware_if.c +++ b/drivers/misc/habanalabs/common/firmware_if.c @@ -972,6 +972,47 @@ int hl_fw_cpucp_power_get(struct hl_device *hdev, u64 *power) return rc; } +void hl_fw_ask_hard_reset_without_linux(struct hl_device *hdev) +{ + struct static_fw_load_mgr *static_loader = + &hdev->fw_loader.static_loader; + int rc; + + if (hdev->asic_prop.dynamic_fw_load) { + rc = hl_fw_dynamic_send_protocol_cmd(hdev, &hdev->fw_loader, + COMMS_RST_DEV, 0, false, + hdev->fw_loader.cpu_timeout); + if (rc) + dev_warn(hdev->dev, "Failed sending COMMS_RST_DEV\n"); + } else { + WREG32(static_loader->kmd_msg_to_cpu_reg, KMD_MSG_RST_DEV); + } +} + +void hl_fw_ask_halt_machine_without_linux(struct hl_device *hdev) +{ + struct static_fw_load_mgr *static_loader = + &hdev->fw_loader.static_loader; + int rc; + + if (hdev->device_cpu_is_halted) + return; + + /* Stop device CPU to make sure nothing bad happens */ + if (hdev->asic_prop.dynamic_fw_load) { + rc = hl_fw_dynamic_send_protocol_cmd(hdev, &hdev->fw_loader, + COMMS_GOTO_WFE, 0, true, + hdev->fw_loader.cpu_timeout); + if (rc) + dev_warn(hdev->dev, "Failed sending COMMS_GOTO_WFE\n"); + } else { + WREG32(static_loader->kmd_msg_to_cpu_reg, KMD_MSG_GOTO_WFE); + msleep(static_loader->cpu_reset_wait_msec); + } + + hdev->device_cpu_is_halted = true; +} + static void detect_cpu_boot_status(struct hl_device *hdev, u32 status) { /* Some of the status codes below are deprecated in newer f/w diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index 98aa8524a6a6..6b3cdd7e068a 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -894,6 +894,7 @@ struct pci_mem_region { * @preboot_version_offset_reg: SRAM offset to preboot version register * @boot_fit_version_offset_reg: SRAM offset to boot fit version register * @sram_offset_mask: mask for getting offset into the SRAM + * @cpu_reset_wait_msec: used when setting WFE via kmd_msg_to_cpu_reg */ struct static_fw_load_mgr { u64 preboot_version_max_off; @@ -908,6 +909,7 @@ struct static_fw_load_mgr { u32 preboot_version_offset_reg; u32 boot_fit_version_offset_reg; u32 sram_offset_mask; + u32 cpu_reset_wait_msec; }; /** @@ -2199,6 +2201,10 @@ struct hl_mmu_funcs { * triggered, and cleared after it is shared with preboot. * @skip_reset_on_timeout: Skip device reset if CS has timed out, wait for it to * complete instead. + * @device_cpu_is_halted: Flag to indicate whether the device CPU was already + * halted. We can't halt it again because the COMMS + * protocol will throw an error. Relevant only for + * cases where Linux was not loaded to device CPU */ struct hl_device { struct pci_dev *pdev; @@ -2315,6 +2321,7 @@ struct hl_device { u8 supports_staged_submission; u8 curr_reset_cause; u8 skip_reset_on_timeout; + u8 device_cpu_is_halted; /* Parameters for bring-up */ u64 nic_ports_mask; @@ -2596,6 +2603,8 @@ int get_used_pll_index(struct hl_device *hdev, u32 input_pll_index, int hl_fw_cpucp_pll_info_get(struct hl_device *hdev, u32 pll_index, u16 *pll_freq_arr); int hl_fw_cpucp_power_get(struct hl_device *hdev, u64 *power); +void hl_fw_ask_hard_reset_without_linux(struct hl_device *hdev); +void hl_fw_ask_halt_machine_without_linux(struct hl_device *hdev); int hl_fw_init_cpu(struct hl_device *hdev); int hl_fw_read_preboot_status(struct hl_device *hdev, u32 cpu_boot_status_reg, u32 sts_boot_dev_sts0_reg, diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 82d5613f291b..aa8a0ca5aca2 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -1934,45 +1934,6 @@ static void gaudi_disable_msi(struct hl_device *hdev) gaudi->hw_cap_initialized &= ~HW_CAP_MSI; } -static void gaudi_ask_hard_reset_without_linux(struct hl_device *hdev) -{ - int rc; - - if (hdev->asic_prop.dynamic_fw_load) { - rc = hl_fw_dynamic_send_protocol_cmd(hdev, &hdev->fw_loader, - COMMS_RST_DEV, 0, false, - hdev->fw_loader.cpu_timeout); - if (rc) - dev_warn(hdev->dev, "Failed sending COMMS_RST_DEV\n"); - } else { - WREG32(mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU, KMD_MSG_RST_DEV); - } -} - -static void gaudi_ask_halt_machine_without_linux(struct hl_device *hdev) -{ - struct gaudi_device *gaudi = hdev->asic_specific; - int rc; - - if (gaudi && gaudi->device_cpu_is_halted) - return; - - /* Stop device CPU to make sure nothing bad happens */ - if (hdev->asic_prop.dynamic_fw_load) { - rc = hl_fw_dynamic_send_protocol_cmd(hdev, &hdev->fw_loader, - COMMS_GOTO_WFE, 0, true, - hdev->fw_loader.cpu_timeout); - if (rc) - dev_warn(hdev->dev, "Failed sending COMMS_GOTO_WFE\n"); - } else { - WREG32(mmPSOC_GLOBAL_CONF_KMD_MSG_TO_CPU, KMD_MSG_GOTO_WFE); - msleep(GAUDI_CPU_RESET_WAIT_MSEC); - } - - if (gaudi) - gaudi->device_cpu_is_halted = true; -} - static void gaudi_init_scrambler_sram(struct hl_device *hdev) { struct gaudi_device *gaudi = hdev->asic_specific; @@ -3859,6 +3820,9 @@ static void gaudi_init_static_firmware_loader(struct hl_device *hdev) static_loader->preboot_version_offset_reg = mmPREBOOT_VER_OFFSET; static_loader->boot_fit_version_offset_reg = mmUBOOT_VER_OFFSET; static_loader->sram_offset_mask = ~(lower_32_bits(SRAM_BASE_ADDR)); + static_loader->cpu_reset_wait_msec = hdev->pldm ? + GAUDI_PLDM_RESET_WAIT_MSEC : + GAUDI_CPU_RESET_WAIT_MSEC; } static void gaudi_init_firmware_loader(struct hl_device *hdev) @@ -4151,9 +4115,9 @@ static void gaudi_hw_fini(struct hl_device *hdev, bool hard_reset) gaudi_irq_map_table[GAUDI_EVENT_HALT_MACHINE].cpu_id); } else { if (hdev->asic_prop.hard_reset_done_by_fw) - gaudi_ask_hard_reset_without_linux(hdev); + hl_fw_ask_hard_reset_without_linux(hdev); else - gaudi_ask_halt_machine_without_linux(hdev); + hl_fw_ask_halt_machine_without_linux(hdev); } if (driver_performs_reset) { @@ -4228,7 +4192,7 @@ static void gaudi_hw_fini(struct hl_device *hdev, bool hard_reset) memset(gaudi->events_stat, 0, sizeof(gaudi->events_stat)); - gaudi->device_cpu_is_halted = false; + hdev->device_cpu_is_halted = false; } } diff --git a/drivers/misc/habanalabs/gaudi/gaudiP.h b/drivers/misc/habanalabs/gaudi/gaudiP.h index b23336af191e..957bf3720f70 100644 --- a/drivers/misc/habanalabs/gaudi/gaudiP.h +++ b/drivers/misc/habanalabs/gaudi/gaudiP.h @@ -315,10 +315,6 @@ struct gaudi_internal_qman_info { * Multi MSI is possible only with IOMMU enabled. * @mmu_cache_inv_pi: PI for MMU cache invalidation flow. The H/W expects an * 8-bit value so use u8. - * @device_cpu_is_halted: Flag to indicate whether the device CPU was already - * halted. We can't halt it again because the COMMS - * protocol will throw an error. Relevant only for - * cases where Linux was not loaded to device CPU */ struct gaudi_device { int (*cpucp_info_get)(struct hl_device *hdev); @@ -340,7 +336,6 @@ struct gaudi_device { u32 hw_cap_initialized; u8 multi_msi_mode; u8 mmu_cache_inv_pi; - u8 device_cpu_is_halted; }; void gaudi_init_security(struct hl_device *hdev); |