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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2016-2019 HabanaLabs, Ltd.
* All Rights Reserved.
*/
#include <uapi/misc/habanalabs.h>
#include "habanalabs.h"
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <linux/slab.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;
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 = prop->dram_user_base_address;
hw_ip.tpc_enabled_mask = prop->tpc_enabled_mask;
hw_ip.sram_size = prop->sram_size - sram_kmd_size;
hw_ip.dram_size = prop->dram_size - dram_kmd_size;
if (hw_ip.dram_size > PAGE_SIZE)
hw_ip.dram_enabled = 1;
hw_ip.num_of_events = prop->num_of_events;
memcpy(hw_ip.armcp_version, prop->armcp_info.armcp_version,
min(VERSION_MAX_LEN, HL_INFO_VERSION_MAX_LEN));
memcpy(hw_ip.card_name, prop->armcp_info.card_name,
min(CARD_NAME_MAX_LEN, HL_INFO_CARD_NAME_MAX_LEN));
hw_ip.armcp_cpld_version = le32_to_cpu(prop->armcp_info.cpld_version);
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;
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);
return copy_to_user(out, arr, min(max_size, size)) ? -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, NULL);
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_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, params);
if (rc) {
dev_err(hdev->dev,
"debug coresight operation failed %d\n"
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