diff options
Diffstat (limited to 'drivers/accel/habanalabs/common/habanalabs_ioctl.c')
| -rw-r--r-- | drivers/accel/habanalabs/common/habanalabs_ioctl.c | 1202 |
1 files changed, 1202 insertions, 0 deletions
diff --git a/drivers/accel/habanalabs/common/habanalabs_ioctl.c b/drivers/accel/habanalabs/common/habanalabs_ioctl.c new file mode 100644 index 000000000000..5005e6fca691 --- /dev/null +++ b/drivers/accel/habanalabs/common/habanalabs_ioctl.c @@ -0,0 +1,1202 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * Copyright 2016-2022 HabanaLabs, Ltd. + * All Rights Reserved. + */ + +#define pr_fmt(fmt) "habanalabs: " fmt + +#include <uapi/drm/habanalabs_accel.h> +#include "habanalabs.h" + +#include <linux/fs.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/slab.h> +#include <linux/uaccess.h> +#include <linux/vmalloc.h> + +static u32 hl_debug_struct_size[HL_DEBUG_OP_TIMESTAMP + 1] = { + [HL_DEBUG_OP_ETR] = sizeof(struct hl_debug_params_etr), + [HL_DEBUG_OP_ETF] = sizeof(struct hl_debug_params_etf), + [HL_DEBUG_OP_STM] = sizeof(struct hl_debug_params_stm), + [HL_DEBUG_OP_FUNNEL] = 0, + [HL_DEBUG_OP_BMON] = sizeof(struct hl_debug_params_bmon), + [HL_DEBUG_OP_SPMU] = sizeof(struct hl_debug_params_spmu), + [HL_DEBUG_OP_TIMESTAMP] = 0 + +}; + +static int device_status_info(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_device_status dev_stat = {0}; + u32 size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!size) || (!out)) + return -EINVAL; + + dev_stat.status = hl_device_status(hdev); + + return copy_to_user(out, &dev_stat, + min((size_t)size, sizeof(dev_stat))) ? -EFAULT : 0; +} + +static int hw_ip_info(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_hw_ip_info hw_ip = {0}; + u32 size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct asic_fixed_properties *prop = &hdev->asic_prop; + u64 sram_kmd_size, dram_kmd_size, dram_available_size; + + if ((!size) || (!out)) + return -EINVAL; + + sram_kmd_size = (prop->sram_user_base_address - + prop->sram_base_address); + dram_kmd_size = (prop->dram_user_base_address - + prop->dram_base_address); + + hw_ip.device_id = hdev->asic_funcs->get_pci_id(hdev); + hw_ip.sram_base_address = prop->sram_user_base_address; + hw_ip.dram_base_address = + hdev->mmu_enable && prop->dram_supports_virtual_memory ? + prop->dmmu.start_addr : prop->dram_user_base_address; + hw_ip.tpc_enabled_mask = prop->tpc_enabled_mask & 0xFF; + hw_ip.tpc_enabled_mask_ext = prop->tpc_enabled_mask; + + hw_ip.sram_size = prop->sram_size - sram_kmd_size; + + dram_available_size = prop->dram_size - dram_kmd_size; + + if (hdev->mmu_enable == MMU_EN_ALL) + hw_ip.dram_size = DIV_ROUND_DOWN_ULL(dram_available_size, + prop->dram_page_size) * prop->dram_page_size; + else + hw_ip.dram_size = dram_available_size; + + if (hw_ip.dram_size > PAGE_SIZE) + hw_ip.dram_enabled = 1; + + hw_ip.dram_page_size = prop->dram_page_size; + hw_ip.device_mem_alloc_default_page_size = prop->device_mem_alloc_default_page_size; + hw_ip.num_of_events = prop->num_of_events; + + memcpy(hw_ip.cpucp_version, prop->cpucp_info.cpucp_version, + min(VERSION_MAX_LEN, HL_INFO_VERSION_MAX_LEN)); + + memcpy(hw_ip.card_name, prop->cpucp_info.card_name, + min(CARD_NAME_MAX_LEN, HL_INFO_CARD_NAME_MAX_LEN)); + + hw_ip.cpld_version = le32_to_cpu(prop->cpucp_info.cpld_version); + hw_ip.module_id = le32_to_cpu(prop->cpucp_info.card_location); + + hw_ip.psoc_pci_pll_nr = prop->psoc_pci_pll_nr; + hw_ip.psoc_pci_pll_nf = prop->psoc_pci_pll_nf; + hw_ip.psoc_pci_pll_od = prop->psoc_pci_pll_od; + hw_ip.psoc_pci_pll_div_factor = prop->psoc_pci_pll_div_factor; + + hw_ip.decoder_enabled_mask = prop->decoder_enabled_mask; + hw_ip.mme_master_slave_mode = prop->mme_master_slave_mode; + hw_ip.first_available_interrupt_id = prop->first_available_user_interrupt; + hw_ip.number_of_user_interrupts = prop->user_interrupt_count; + + hw_ip.edma_enabled_mask = prop->edma_enabled_mask; + hw_ip.server_type = prop->server_type; + hw_ip.security_enabled = prop->fw_security_enabled; + hw_ip.revision_id = hdev->pdev->revision; + + return copy_to_user(out, &hw_ip, + min((size_t) size, sizeof(hw_ip))) ? -EFAULT : 0; +} + +static int hw_events_info(struct hl_device *hdev, bool aggregate, + struct hl_info_args *args) +{ + u32 size, max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + void *arr; + + if ((!max_size) || (!out)) + return -EINVAL; + + arr = hdev->asic_funcs->get_events_stat(hdev, aggregate, &size); + if (!arr) { + dev_err(hdev->dev, "Events info not supported\n"); + return -EOPNOTSUPP; + } + + return copy_to_user(out, arr, min(max_size, size)) ? -EFAULT : 0; +} + +static int events_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + u32 max_size = args->return_size; + u64 events_mask; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((max_size < sizeof(u64)) || (!out)) + return -EINVAL; + + mutex_lock(&hpriv->notifier_event.lock); + events_mask = hpriv->notifier_event.events_mask; + hpriv->notifier_event.events_mask = 0; + mutex_unlock(&hpriv->notifier_event.lock); + + return copy_to_user(out, &events_mask, sizeof(u64)) ? -EFAULT : 0; +} + +static int dram_usage_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + struct hl_info_dram_usage dram_usage = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct asic_fixed_properties *prop = &hdev->asic_prop; + u64 dram_kmd_size; + + if ((!max_size) || (!out)) + return -EINVAL; + + dram_kmd_size = (prop->dram_user_base_address - + prop->dram_base_address); + dram_usage.dram_free_mem = (prop->dram_size - dram_kmd_size) - + atomic64_read(&hdev->dram_used_mem); + if (hpriv->ctx) + dram_usage.ctx_dram_mem = + atomic64_read(&hpriv->ctx->dram_phys_mem); + + return copy_to_user(out, &dram_usage, + min((size_t) max_size, sizeof(dram_usage))) ? -EFAULT : 0; +} + +static int hw_idle(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_hw_idle hw_idle = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + hw_idle.is_idle = hdev->asic_funcs->is_device_idle(hdev, + hw_idle.busy_engines_mask_ext, + HL_BUSY_ENGINES_MASK_EXT_SIZE, NULL); + hw_idle.busy_engines_mask = + lower_32_bits(hw_idle.busy_engines_mask_ext[0]); + + return copy_to_user(out, &hw_idle, + min((size_t) max_size, sizeof(hw_idle))) ? -EFAULT : 0; +} + +static int debug_coresight(struct hl_device *hdev, struct hl_ctx *ctx, struct hl_debug_args *args) +{ + struct hl_debug_params *params; + void *input = NULL, *output = NULL; + int rc; + + params = kzalloc(sizeof(*params), GFP_KERNEL); + if (!params) + return -ENOMEM; + + params->reg_idx = args->reg_idx; + params->enable = args->enable; + params->op = args->op; + + if (args->input_ptr && args->input_size) { + input = kzalloc(hl_debug_struct_size[args->op], GFP_KERNEL); + if (!input) { + rc = -ENOMEM; + goto out; + } + + if (copy_from_user(input, u64_to_user_ptr(args->input_ptr), + args->input_size)) { + rc = -EFAULT; + dev_err(hdev->dev, "failed to copy input debug data\n"); + goto out; + } + + params->input = input; + } + + if (args->output_ptr && args->output_size) { + output = kzalloc(args->output_size, GFP_KERNEL); + if (!output) { + rc = -ENOMEM; + goto out; + } + + params->output = output; + params->output_size = args->output_size; + } + + rc = hdev->asic_funcs->debug_coresight(hdev, ctx, params); + if (rc) { + dev_err(hdev->dev, + "debug coresight operation failed %d\n", rc); + goto out; + } + + if (output && copy_to_user((void __user *) (uintptr_t) args->output_ptr, + output, args->output_size)) { + dev_err(hdev->dev, "copy to user failed in debug ioctl\n"); + rc = -EFAULT; + goto out; + } + + +out: + kfree(params); + kfree(output); + kfree(input); + + return rc; +} + +static int device_utilization(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_device_utilization device_util = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_device_utilization(hdev, &device_util.utilization); + if (rc) + return -EINVAL; + + return copy_to_user(out, &device_util, + min((size_t) max_size, sizeof(device_util))) ? -EFAULT : 0; +} + +static int get_clk_rate(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_clk_rate clk_rate = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_fw_get_clk_rate(hdev, &clk_rate.cur_clk_rate_mhz, &clk_rate.max_clk_rate_mhz); + if (rc) + return rc; + + return copy_to_user(out, &clk_rate, min_t(size_t, max_size, sizeof(clk_rate))) + ? -EFAULT : 0; +} + +static int get_reset_count(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_reset_count reset_count = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + reset_count.hard_reset_cnt = hdev->reset_info.hard_reset_cnt; + reset_count.soft_reset_cnt = hdev->reset_info.compute_reset_cnt; + + return copy_to_user(out, &reset_count, + min((size_t) max_size, sizeof(reset_count))) ? -EFAULT : 0; +} + +static int time_sync_info(struct hl_device *hdev, struct hl_info_args *args) +{ + struct hl_info_time_sync time_sync = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + time_sync.device_time = hdev->asic_funcs->get_device_time(hdev); + time_sync.host_time = ktime_get_raw_ns(); + + return copy_to_user(out, &time_sync, + min((size_t) max_size, sizeof(time_sync))) ? -EFAULT : 0; +} + +static int pci_counters_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + struct hl_info_pci_counters pci_counters = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_fw_cpucp_pci_counters_get(hdev, &pci_counters); + if (rc) + return rc; + + return copy_to_user(out, &pci_counters, + min((size_t) max_size, sizeof(pci_counters))) ? -EFAULT : 0; +} + +static int clk_throttle_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct hl_device *hdev = hpriv->hdev; + struct hl_info_clk_throttle clk_throttle = {0}; + ktime_t end_time, zero_time = ktime_set(0, 0); + u32 max_size = args->return_size; + int i; + + if ((!max_size) || (!out)) + return -EINVAL; + + mutex_lock(&hdev->clk_throttling.lock); + + clk_throttle.clk_throttling_reason = hdev->clk_throttling.current_reason; + + for (i = 0 ; i < HL_CLK_THROTTLE_TYPE_MAX ; i++) { + if (!(hdev->clk_throttling.aggregated_reason & BIT(i))) + continue; + + clk_throttle.clk_throttling_timestamp_us[i] = + ktime_to_us(hdev->clk_throttling.timestamp[i].start); + + if (ktime_compare(hdev->clk_throttling.timestamp[i].end, zero_time)) + end_time = hdev->clk_throttling.timestamp[i].end; + else + end_time = ktime_get(); + + clk_throttle.clk_throttling_duration_ns[i] = + ktime_to_ns(ktime_sub(end_time, + hdev->clk_throttling.timestamp[i].start)); + + } + mutex_unlock(&hdev->clk_throttling.lock); + + return copy_to_user(out, &clk_throttle, + min((size_t) max_size, sizeof(clk_throttle))) ? -EFAULT : 0; +} + +static int cs_counters_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct hl_info_cs_counters cs_counters = {0}; + struct hl_device *hdev = hpriv->hdev; + struct hl_cs_counters_atomic *cntr; + u32 max_size = args->return_size; + + cntr = &hdev->aggregated_cs_counters; + + if ((!max_size) || (!out)) + return -EINVAL; + + cs_counters.total_out_of_mem_drop_cnt = + atomic64_read(&cntr->out_of_mem_drop_cnt); + cs_counters.total_parsing_drop_cnt = + atomic64_read(&cntr->parsing_drop_cnt); + cs_counters.total_queue_full_drop_cnt = + atomic64_read(&cntr->queue_full_drop_cnt); + cs_counters.total_device_in_reset_drop_cnt = + atomic64_read(&cntr->device_in_reset_drop_cnt); + cs_counters.total_max_cs_in_flight_drop_cnt = + atomic64_read(&cntr->max_cs_in_flight_drop_cnt); + cs_counters.total_validation_drop_cnt = + atomic64_read(&cntr->validation_drop_cnt); + + if (hpriv->ctx) { + cs_counters.ctx_out_of_mem_drop_cnt = + atomic64_read( + &hpriv->ctx->cs_counters.out_of_mem_drop_cnt); + cs_counters.ctx_parsing_drop_cnt = + atomic64_read( + &hpriv->ctx->cs_counters.parsing_drop_cnt); + cs_counters.ctx_queue_full_drop_cnt = + atomic64_read( + &hpriv->ctx->cs_counters.queue_full_drop_cnt); + cs_counters.ctx_device_in_reset_drop_cnt = + atomic64_read( + &hpriv->ctx->cs_counters.device_in_reset_drop_cnt); + cs_counters.ctx_max_cs_in_flight_drop_cnt = + atomic64_read( + &hpriv->ctx->cs_counters.max_cs_in_flight_drop_cnt); + cs_counters.ctx_validation_drop_cnt = + atomic64_read( + &hpriv->ctx->cs_counters.validation_drop_cnt); + } + + return copy_to_user(out, &cs_counters, + min((size_t) max_size, sizeof(cs_counters))) ? -EFAULT : 0; +} + +static int sync_manager_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + struct asic_fixed_properties *prop = &hdev->asic_prop; + struct hl_info_sync_manager sm_info = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + if (args->dcore_id >= HL_MAX_DCORES) + return -EINVAL; + + sm_info.first_available_sync_object = + prop->first_available_user_sob[args->dcore_id]; + sm_info.first_available_monitor = + prop->first_available_user_mon[args->dcore_id]; + sm_info.first_available_cq = + prop->first_available_cq[args->dcore_id]; + + return copy_to_user(out, &sm_info, min_t(size_t, (size_t) max_size, + sizeof(sm_info))) ? -EFAULT : 0; +} + +static int total_energy_consumption_info(struct hl_fpriv *hpriv, + struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + struct hl_info_energy total_energy = {0}; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_fw_cpucp_total_energy_get(hdev, + &total_energy.total_energy_consumption); + if (rc) + return rc; + + return copy_to_user(out, &total_energy, + min((size_t) max_size, sizeof(total_energy))) ? -EFAULT : 0; +} + +static int pll_frequency_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + struct hl_pll_frequency_info freq_info = { {0} }; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_fw_cpucp_pll_info_get(hdev, args->pll_index, freq_info.output); + if (rc) + return rc; + + return copy_to_user(out, &freq_info, + min((size_t) max_size, sizeof(freq_info))) ? -EFAULT : 0; +} + +static int power_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + struct hl_power_info power_info = {0}; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_fw_cpucp_power_get(hdev, &power_info.power); + if (rc) + return rc; + + return copy_to_user(out, &power_info, + min((size_t) max_size, sizeof(power_info))) ? -EFAULT : 0; +} + +static int open_stats_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + struct hl_open_stats_info open_stats_info = {0}; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + open_stats_info.last_open_period_ms = jiffies64_to_msecs( + hdev->last_open_session_duration_jif); + open_stats_info.open_counter = hdev->open_counter; + open_stats_info.is_compute_ctx_active = hdev->is_compute_ctx_active; + open_stats_info.compute_ctx_in_release = hdev->compute_ctx_in_release; + + return copy_to_user(out, &open_stats_info, + min((size_t) max_size, sizeof(open_stats_info))) ? -EFAULT : 0; +} + +static int dram_pending_rows_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + u32 pend_rows_num = 0; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_fw_dram_pending_row_get(hdev, &pend_rows_num); + if (rc) + return rc; + + return copy_to_user(out, &pend_rows_num, + min_t(size_t, max_size, sizeof(pend_rows_num))) ? -EFAULT : 0; +} + +static int dram_replaced_rows_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + struct cpucp_hbm_row_info info = {0}; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + rc = hl_fw_dram_replaced_row_get(hdev, &info); + if (rc) + return rc; + + return copy_to_user(out, &info, min_t(size_t, max_size, sizeof(info))) ? -EFAULT : 0; +} + +static int last_err_open_dev_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_info_last_err_open_dev_time info = {0}; + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + info.timestamp = ktime_to_ns(hdev->last_successful_open_ktime); + + return copy_to_user(out, &info, min_t(size_t, max_size, sizeof(info))) ? -EFAULT : 0; +} + +static int cs_timeout_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_info_cs_timeout_event info = {0}; + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + info.seq = hdev->captured_err_info.cs_timeout.seq; + info.timestamp = ktime_to_ns(hdev->captured_err_info.cs_timeout.timestamp); + + return copy_to_user(out, &info, min_t(size_t, max_size, sizeof(info))) ? -EFAULT : 0; +} + +static int razwi_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + struct razwi_info *razwi_info; + + if ((!max_size) || (!out)) + return -EINVAL; + + razwi_info = &hdev->captured_err_info.razwi_info; + if (!razwi_info->razwi_info_available) + return 0; + + return copy_to_user(out, &razwi_info->razwi, + min_t(size_t, max_size, sizeof(struct hl_info_razwi_event))) ? -EFAULT : 0; +} + +static int undefined_opcode_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + struct hl_info_undefined_opcode_event info = {0}; + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + + if ((!max_size) || (!out)) + return -EINVAL; + + info.timestamp = ktime_to_ns(hdev->captured_err_info.undef_opcode.timestamp); + info.engine_id = hdev->captured_err_info.undef_opcode.engine_id; + info.cq_addr = hdev->captured_err_info.undef_opcode.cq_addr; + info.cq_size = hdev->captured_err_info.undef_opcode.cq_size; + info.stream_id = hdev->captured_err_info.undef_opcode.stream_id; + info.cb_addr_streams_len = hdev->captured_err_info.undef_opcode.cb_addr_streams_len; + memcpy(info.cb_addr_streams, hdev->captured_err_info.undef_opcode.cb_addr_streams, + sizeof(info.cb_addr_streams)); + + return copy_to_user(out, &info, min_t(size_t, max_size, sizeof(info))) ? -EFAULT : 0; +} + +static int dev_mem_alloc_page_sizes_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct hl_info_dev_memalloc_page_sizes info = {0}; + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + + if ((!max_size) || (!out)) + return -EINVAL; + + /* + * Future ASICs that will support multiple DRAM page sizes will support only "powers of 2" + * pages (unlike some of the ASICs before supporting multiple page sizes). + * For this reason for all ASICs that not support multiple page size the function will + * return an empty bitmask indicating that multiple page sizes is not supported. + */ + info.page_order_bitmask = hdev->asic_prop.dmmu.supported_pages_mask; + + return copy_to_user(out, &info, min_t(size_t, max_size, sizeof(info))) ? -EFAULT : 0; +} + +static int sec_attest_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct cpucp_sec_attest_info *sec_attest_info; + struct hl_info_sec_attest *info; + u32 max_size = args->return_size; + int rc; + + if ((!max_size) || (!out)) + return -EINVAL; + + sec_attest_info = kmalloc(sizeof(*sec_attest_info), GFP_KERNEL); + if (!sec_attest_info) + return -ENOMEM; + + info = kmalloc(sizeof(*info), GFP_KERNEL); + if (!info) { + rc = -ENOMEM; + goto free_sec_attest_info; + } + + rc = hl_fw_get_sec_attest_info(hpriv->hdev, sec_attest_info, args->sec_attest_nonce); + if (rc) + goto free_info; + + info->nonce = le32_to_cpu(sec_attest_info->nonce); + info->pcr_quote_len = le16_to_cpu(sec_attest_info->pcr_quote_len); + info->pub_data_len = le16_to_cpu(sec_attest_info->pub_data_len); + info->certificate_len = le16_to_cpu(sec_attest_info->certificate_len); + info->pcr_num_reg = sec_attest_info->pcr_num_reg; + info->pcr_reg_len = sec_attest_info->pcr_reg_len; + info->quote_sig_len = sec_attest_info->quote_sig_len; + memcpy(&info->pcr_data, &sec_attest_info->pcr_data, sizeof(info->pcr_data)); + memcpy(&info->pcr_quote, &sec_attest_info->pcr_quote, sizeof(info->pcr_quote)); + memcpy(&info->public_data, &sec_attest_info->public_data, sizeof(info->public_data)); + memcpy(&info->certificate, &sec_attest_info->certificate, sizeof(info->certificate)); + memcpy(&info->quote_sig, &sec_attest_info->quote_sig, sizeof(info->quote_sig)); + + rc = copy_to_user(out, info, + min_t(size_t, max_size, sizeof(*info))) ? -EFAULT : 0; + +free_info: + kfree(info); +free_sec_attest_info: + kfree(sec_attest_info); + + return rc; +} + +static int eventfd_register(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + int rc; + + /* check if there is already a registered on that process */ + mutex_lock(&hpriv->notifier_event.lock); + if (hpriv->notifier_event.eventfd) { + mutex_unlock(&hpriv->notifier_event.lock); + return -EINVAL; + } + + hpriv->notifier_event.eventfd = eventfd_ctx_fdget(args->eventfd); + if (IS_ERR(hpriv->notifier_event.eventfd)) { + rc = PTR_ERR(hpriv->notifier_event.eventfd); + hpriv->notifier_event.eventfd = NULL; + mutex_unlock(&hpriv->notifier_event.lock); + return rc; + } + + mutex_unlock(&hpriv->notifier_event.lock); + return 0; +} + +static int eventfd_unregister(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + mutex_lock(&hpriv->notifier_event.lock); + if (!hpriv->notifier_event.eventfd) { + mutex_unlock(&hpriv->notifier_event.lock); + return -EINVAL; + } + + eventfd_ctx_put(hpriv->notifier_event.eventfd); + hpriv->notifier_event.eventfd = NULL; + mutex_unlock(&hpriv->notifier_event.lock); + return 0; +} + +static int engine_status_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + u32 status_buf_size = args->return_size; + struct hl_device *hdev = hpriv->hdev; + struct engines_data eng_data; + int rc; + + if ((status_buf_size < SZ_1K) || (status_buf_size > HL_ENGINES_DATA_MAX_SIZE) || (!out)) + return -EINVAL; + + eng_data.actual_size = 0; + eng_data.allocated_buf_size = status_buf_size; + eng_data.buf = vmalloc(status_buf_size); + if (!eng_data.buf) + return -ENOMEM; + + hdev->asic_funcs->is_device_idle(hdev, NULL, 0, &eng_data); + + if (eng_data.actual_size > eng_data.allocated_buf_size) { + dev_err(hdev->dev, + "Engines data size (%d Bytes) is bigger than allocated size (%u Bytes)\n", + eng_data.actual_size, status_buf_size); + vfree(eng_data.buf); + return -ENOMEM; + } + + args->user_buffer_actual_size = eng_data.actual_size; + rc = copy_to_user(out, eng_data.buf, min_t(size_t, status_buf_size, eng_data.actual_size)) ? + -EFAULT : 0; + + vfree(eng_data.buf); + + return rc; +} + +static int page_fault_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + struct hl_device *hdev = hpriv->hdev; + u32 max_size = args->return_size; + struct page_fault_info *pgf_info; + + if ((!max_size) || (!out)) + return -EINVAL; + + pgf_info = &hdev->captured_err_info.page_fault_info; + if (!pgf_info->page_fault_info_available) + return 0; + + return copy_to_user(out, &pgf_info->page_fault, + min_t(size_t, max_size, sizeof(struct hl_page_fault_info))) ? -EFAULT : 0; +} + +static int user_mappings_info(struct hl_fpriv *hpriv, struct hl_info_args *args) +{ + void __user *out = (void __user *) (uintptr_t) args->return_pointer; + u32 user_buf_size = args->return_size; + struct hl_device *hdev = hpriv->hdev; + struct page_fault_info *pgf_info; + u64 actual_size; + + if (!out) + return -EINVAL; + + pgf_info = &hdev->captured_err_info.page_fault_info; + if (!pgf_info->page_fault_info_available) + return 0; + + args->array_size = pgf_info->num_of_user_mappings; + + actual_size = pgf_info->num_of_user_mappings * sizeof(struct hl_user_mapping); + if (user_buf_size < actual_size) + return -ENOMEM; + + return copy_to_user(out, pgf_info->user_mappings, actual_size) ? -EFAULT : 0; +} + +static int send_fw_generic_request(struct hl_device *hdev, struct hl_info_args *info_args) +{ + void __user *buff = (void __user *) (uintptr_t) info_args->return_pointer; + u32 size = info_args->return_size; + dma_addr_t dma_handle; + bool need_input_buff; + void *fw_buff; + int rc = 0; + + switch (info_args->fw_sub_opcode) { + case HL_PASSTHROUGH_VERSIONS: + need_input_buff = false; + break; + default: + return -EINVAL; + } + + if (size > SZ_1M) { + dev_err(hdev->dev, "buffer size cannot exceed 1MB\n"); + return -EINVAL; + } + + fw_buff = hl_cpu_accessible_dma_pool_alloc(hdev, size, &dma_handle); + if (!fw_buff) + return -ENOMEM; + + + if (need_input_buff && copy_from_user(fw_buff, buff, size)) { + dev_dbg(hdev->dev, "Failed to copy from user FW buff\n"); + rc = -EFAULT; + goto free_buff; + } + + rc = hl_fw_send_generic_request(hdev, info_args->fw_sub_opcode, dma_handle, &size); + if (rc) + goto free_buff; + + if (copy_to_user(buff, fw_buff, min(size, info_args->return_size))) { + dev_dbg(hdev->dev, "Failed to copy to user FW generic req output\n"); + rc = -EFAULT; + } + +free_buff: + hl_cpu_accessible_dma_pool_free(hdev, info_args->return_size, fw_buff); + + return rc; +} + +static int _hl_info_ioctl(struct hl_fpriv *hpriv, void *data, + struct device *dev) +{ + enum hl_device_status status; + struct hl_info_args *args = data; + struct hl_device *hdev = hpriv->hdev; + int rc; + + if (args->pad) { + dev_dbg(hdev->dev, "Padding bytes must be 0\n"); + return -EINVAL; + } + + /* + * Information is returned for the following opcodes even if the device + * is disabled or in reset. + */ + switch (args->op) { + case HL_INFO_HW_IP_INFO: + return hw_ip_info(hdev, args); + + case HL_INFO_DEVICE_STATUS: + return device_status_info(hdev, args); + + case HL_INFO_RESET_COUNT: + return get_reset_count(hdev, args); + + case HL_INFO_HW_EVENTS: + return hw_events_info(hdev, false, args); + + case HL_INFO_HW_EVENTS_AGGREGATE: + return hw_events_info(hdev, true, args); + + case HL_INFO_CS_COUNTERS: + return cs_counters_info(hpriv, args); + + case HL_INFO_CLK_THROTTLE_REASON: + return clk_throttle_info(hpriv, args); + + case HL_INFO_SYNC_MANAGER: + return sync_manager_info(hpriv, args); + + case HL_INFO_OPEN_STATS: + return open_stats_info(hpriv, args); + + case HL_INFO_LAST_ERR_OPEN_DEV_TIME: + return last_err_open_dev_info(hpriv, args); + + case HL_INFO_CS_TIMEOUT_EVENT: + return cs_timeout_info(hpriv, args); + + case HL_INFO_RAZWI_EVENT: + return razwi_info(hpriv, args); + + case HL_INFO_UNDEFINED_OPCODE_EVENT: + return undefined_opcode_info(hpriv, args); + + case HL_INFO_DEV_MEM_ALLOC_PAGE_SIZES: + return dev_mem_alloc_page_sizes_info(hpriv, args); + + case HL_INFO_GET_EVENTS: + return events_info(hpriv, args); + + case HL_INFO_PAGE_FAULT_EVENT: + return page_fault_info(hpriv, args); + + case HL_INFO_USER_MAPPINGS: + return user_mappings_info(hpriv, args); + + case HL_INFO_UNREGISTER_EVENTFD: + return eventfd_unregister(hpriv, args); + + default: + break; + } + + if (!hl_device_operational(hdev, &status)) { + dev_dbg_ratelimited(dev, + "Device is %s. Can't execute INFO IOCTL\n", + hdev->status[status]); + return -EBUSY; + } + + switch (args->op) { + case HL_INFO_DRAM_USAGE: + rc = dram_usage_info(hpriv, args); + break; + + case HL_INFO_HW_IDLE: + rc = hw_idle(hdev, args); + break; + + case HL_INFO_DEVICE_UTILIZATION: + rc = device_utilization(hdev, args); + break; + + case HL_INFO_CLK_RATE: + rc = get_clk_rate(hdev, args); + break; + + case HL_INFO_TIME_SYNC: + return time_sync_info(hdev, args); + + case HL_INFO_PCI_COUNTERS: + return pci_counters_info(hpriv, args); + + case HL_INFO_TOTAL_ENERGY: + return total_energy_consumption_info(hpriv, args); + + case HL_INFO_PLL_FREQUENCY: + return pll_frequency_info(hpriv, args); + + case HL_INFO_POWER: + return power_info(hpriv, args); + + + case HL_INFO_DRAM_REPLACED_ROWS: + return dram_replaced_rows_info(hpriv, args); + + case HL_INFO_DRAM_PENDING_ROWS: + return dram_pending_rows_info(hpriv, args); + + case HL_INFO_SECURED_ATTESTATION: + return sec_attest_info(hpriv, args); + + case HL_INFO_REGISTER_EVENTFD: + return eventfd_register(hpriv, args); + + case HL_INFO_ENGINE_STATUS: + return engine_status_info(hpriv, args); + + case HL_INFO_FW_GENERIC_REQ: + return send_fw_generic_request(hdev, args); + + default: + dev_err(dev, "Invalid request %d\n", args->op); + rc = -EINVAL; + break; + } + + return rc; +} + +static int hl_info_ioctl(struct hl_fpriv *hpriv, void *data) +{ + return _hl_info_ioctl(hpriv, data, hpriv->hdev->dev); +} + +static int hl_info_ioctl_control(struct hl_fpriv *hpriv, void *data) +{ + return _hl_info_ioctl(hpriv, data, hpriv->hdev->dev_ctrl); +} + +static int hl_debug_ioctl(struct hl_fpriv *hpriv, void *data) +{ + struct hl_debug_args *args = data; + struct hl_device *hdev = hpriv->hdev; + enum hl_device_status status; + + int rc = 0; + + if (!hl_device_operational(hdev, &status)) { + dev_dbg_ratelimited(hdev->dev, + "Device is %s. Can't execute DEBUG IOCTL\n", + hdev->status[status]); + return -EBUSY; + } + + switch (args->op) { + case HL_DEBUG_OP_ETR: + case HL_DEBUG_OP_ETF: + case HL_DEBUG_OP_STM: + case HL_DEBUG_OP_FUNNEL: + case HL_DEBUG_OP_BMON: + case HL_DEBUG_OP_SPMU: + case HL_DEBUG_OP_TIMESTAMP: + if (!hdev->in_debug) { + dev_err_ratelimited(hdev->dev, + "Rejecting debug configuration request because device not in debug mode\n"); + return -EFAULT; + } + args->input_size = min(args->input_size, hl_debug_struct_size[args->op]); + rc = debug_coresight(hdev, hpriv->ctx, args); + break; + + case HL_DEBUG_OP_SET_MODE: + rc = hl_device_set_debug_mode(hdev, hpriv->ctx, (bool) args->enable); + break; + + default: + dev_err(hdev->dev, "Invalid request %d\n", args->op); + rc = -EINVAL; + break; + } + + return rc; +} + +#define HL_IOCTL_DEF(ioctl, _func) \ + [_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func} + +static const struct hl_ioctl_desc hl_ioctls[] = { + HL_IOCTL_DEF(HL_IOCTL_INFO, hl_info_ioctl), + HL_IOCTL_DEF(HL_IOCTL_CB, hl_cb_ioctl), + HL_IOCTL_DEF(HL_IOCTL_CS, hl_cs_ioctl), + HL_IOCTL_DEF(HL_IOCTL_WAIT_CS, hl_wait_ioctl), + HL_IOCTL_DEF(HL_IOCTL_MEMORY, hl_mem_ioctl), + HL_IOCTL_DEF(HL_IOCTL_DEBUG, hl_debug_ioctl) +}; + +static const struct hl_ioctl_desc hl_ioctls_control[] = { + HL_IOCTL_DEF(HL_IOCTL_INFO, hl_info_ioctl_control) +}; + +static long _hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg, + const struct hl_ioctl_desc *ioctl, struct device *dev) +{ + struct hl_fpriv *hpriv = filep->private_data; + unsigned int nr = _IOC_NR(cmd); + char stack_kdata[128] = {0}; + char *kdata = NULL; + unsigned int usize, asize; + hl_ioctl_t *func; + u32 hl_size; + int retcode; + + /* Do not trust userspace, use our own definition */ + func = ioctl->func; + + if (unlikely(!func)) { + dev_dbg(dev, "no function\n"); + retcode = -ENOTTY; + goto out_err; + } + + hl_size = _IOC_SIZE(ioctl->cmd); + usize = asize = _IOC_SIZE(cmd); + if (hl_size > asize) + asize = hl_size; + + cmd = ioctl->cmd; + + if (cmd & (IOC_IN | IOC_OUT)) { + if (asize <= sizeof(stack_kdata)) { + kdata = stack_kdata; + } else { + kdata = kzalloc(asize, GFP_KERNEL); + if (!kdata) { + retcode = -ENOMEM; + goto out_err; + } + } + } + + if (cmd & IOC_IN) { + if (copy_from_user(kdata, (void __user *)arg, usize)) { + retcode = -EFAULT; + goto out_err; + } + } + + retcode = func(hpriv, kdata); + + if ((cmd & IOC_OUT) && copy_to_user((void __user *)arg, kdata, usize)) + retcode = -EFAULT; + +out_err: + if (retcode) + dev_dbg(dev, "error in ioctl: pid=%d, cmd=0x%02x, nr=0x%02x\n", + task_pid_nr(current), cmd, nr); + + if (kdata != stack_kdata) + kfree(kdata); + + return retcode; +} + +long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) +{ + struct hl_fpriv *hpriv = filep->private_data; + struct hl_device *hdev = hpriv->hdev; + const struct hl_ioctl_desc *ioctl = NULL; + unsigned int nr = _IOC_NR(cmd); + + if (!hdev) { + pr_err_ratelimited("Sending ioctl after device was removed! Please close FD\n"); + return -ENODEV; + } + + if ((nr >= HL_COMMAND_START) && (nr < HL_COMMAND_END)) { + ioctl = &hl_ioctls[nr]; + } else { + dev_err(hdev->dev, "invalid ioctl: pid=%d, nr=0x%02x\n", + task_pid_nr(current), nr); + return -ENOTTY; + } + + return _hl_ioctl(filep, cmd, arg, ioctl, hdev->dev); +} + +long hl_ioctl_control(struct file *filep, unsigned int cmd, unsigned long arg) +{ + struct hl_fpriv *hpriv = filep->private_data; + struct hl_device *hdev = hpriv->hdev; + const struct hl_ioctl_desc *ioctl = NULL; + unsigned int nr = _IOC_NR(cmd); + + if (!hdev) { + pr_err_ratelimited("Sending ioctl after device was removed! Please close FD\n"); + return -ENODEV; + } + + if (nr == _IOC_NR(HL_IOCTL_INFO)) { + ioctl = &hl_ioctls_control[nr]; + } else { + dev_err(hdev->dev_ctrl, "invalid ioctl: pid=%d, nr=0x%02x\n", + task_pid_nr(current), nr); + return -ENOTTY; + } + + return _hl_ioctl(filep, cmd, arg, ioctl, hdev->dev_ctrl); +} |