1220 lines
30 KiB
C
1220 lines
30 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2016-2019 HabanaLabs, Ltd.
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* All Rights Reserved.
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*/
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#include "habanalabs.h"
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#include "include/hw_ip/mmu/mmu_general.h"
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#include <linux/pci.h>
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#include <linux/debugfs.h>
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#include <linux/uaccess.h>
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#define MMU_ADDR_BUF_SIZE 40
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#define MMU_ASID_BUF_SIZE 10
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#define MMU_KBUF_SIZE (MMU_ADDR_BUF_SIZE + MMU_ASID_BUF_SIZE)
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static struct dentry *hl_debug_root;
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static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
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u8 i2c_reg, u32 *val)
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{
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struct armcp_packet pkt;
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int rc;
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if (hl_device_disabled_or_in_reset(hdev))
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return -EBUSY;
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memset(&pkt, 0, sizeof(pkt));
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_I2C_RD <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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pkt.i2c_bus = i2c_bus;
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pkt.i2c_addr = i2c_addr;
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pkt.i2c_reg = i2c_reg;
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rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
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HL_DEVICE_TIMEOUT_USEC, (long *) val);
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if (rc)
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dev_err(hdev->dev, "Failed to read from I2C, error %d\n", rc);
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return rc;
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}
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static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
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u8 i2c_reg, u32 val)
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{
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struct armcp_packet pkt;
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int rc;
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if (hl_device_disabled_or_in_reset(hdev))
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return -EBUSY;
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memset(&pkt, 0, sizeof(pkt));
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_I2C_WR <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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pkt.i2c_bus = i2c_bus;
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pkt.i2c_addr = i2c_addr;
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pkt.i2c_reg = i2c_reg;
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pkt.value = cpu_to_le64(val);
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rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
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HL_DEVICE_TIMEOUT_USEC, NULL);
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if (rc)
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dev_err(hdev->dev, "Failed to write to I2C, error %d\n", rc);
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return rc;
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}
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static void hl_debugfs_led_set(struct hl_device *hdev, u8 led, u8 state)
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{
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struct armcp_packet pkt;
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int rc;
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if (hl_device_disabled_or_in_reset(hdev))
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return;
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memset(&pkt, 0, sizeof(pkt));
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pkt.ctl = cpu_to_le32(ARMCP_PACKET_LED_SET <<
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ARMCP_PKT_CTL_OPCODE_SHIFT);
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pkt.led_index = cpu_to_le32(led);
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pkt.value = cpu_to_le64(state);
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rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
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HL_DEVICE_TIMEOUT_USEC, NULL);
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if (rc)
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dev_err(hdev->dev, "Failed to set LED %d, error %d\n", led, rc);
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}
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static int command_buffers_show(struct seq_file *s, void *data)
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{
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struct hl_debugfs_entry *entry = s->private;
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struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
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struct hl_cb *cb;
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bool first = true;
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spin_lock(&dev_entry->cb_spinlock);
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list_for_each_entry(cb, &dev_entry->cb_list, debugfs_list) {
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if (first) {
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first = false;
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seq_puts(s, "\n");
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seq_puts(s, " CB ID CTX ID CB size CB RefCnt mmap? CS counter\n");
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seq_puts(s, "---------------------------------------------------------------\n");
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}
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seq_printf(s,
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" %03d %d 0x%08x %d %d %d\n",
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cb->id, cb->ctx_id, cb->size,
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kref_read(&cb->refcount),
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cb->mmap, cb->cs_cnt);
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}
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spin_unlock(&dev_entry->cb_spinlock);
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if (!first)
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seq_puts(s, "\n");
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return 0;
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}
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static int command_submission_show(struct seq_file *s, void *data)
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{
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struct hl_debugfs_entry *entry = s->private;
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struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
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struct hl_cs *cs;
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bool first = true;
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spin_lock(&dev_entry->cs_spinlock);
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list_for_each_entry(cs, &dev_entry->cs_list, debugfs_list) {
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if (first) {
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first = false;
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seq_puts(s, "\n");
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seq_puts(s, " CS ID CTX ASID CS RefCnt Submitted Completed\n");
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seq_puts(s, "------------------------------------------------------\n");
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}
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seq_printf(s,
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" %llu %d %d %d %d\n",
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cs->sequence, cs->ctx->asid,
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kref_read(&cs->refcount),
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cs->submitted, cs->completed);
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}
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spin_unlock(&dev_entry->cs_spinlock);
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if (!first)
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seq_puts(s, "\n");
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return 0;
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}
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static int command_submission_jobs_show(struct seq_file *s, void *data)
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{
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struct hl_debugfs_entry *entry = s->private;
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struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
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struct hl_cs_job *job;
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bool first = true;
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spin_lock(&dev_entry->cs_job_spinlock);
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list_for_each_entry(job, &dev_entry->cs_job_list, debugfs_list) {
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if (first) {
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first = false;
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seq_puts(s, "\n");
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seq_puts(s, " JOB ID CS ID CTX ASID H/W Queue\n");
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seq_puts(s, "---------------------------------------\n");
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}
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if (job->cs)
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seq_printf(s,
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" %02d %llu %d %d\n",
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job->id, job->cs->sequence, job->cs->ctx->asid,
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job->hw_queue_id);
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else
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seq_printf(s,
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" %02d 0 %d %d\n",
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job->id, HL_KERNEL_ASID_ID, job->hw_queue_id);
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}
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spin_unlock(&dev_entry->cs_job_spinlock);
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if (!first)
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seq_puts(s, "\n");
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return 0;
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}
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static int userptr_show(struct seq_file *s, void *data)
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{
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struct hl_debugfs_entry *entry = s->private;
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struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
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struct hl_userptr *userptr;
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char dma_dir[4][30] = {"DMA_BIDIRECTIONAL", "DMA_TO_DEVICE",
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"DMA_FROM_DEVICE", "DMA_NONE"};
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bool first = true;
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spin_lock(&dev_entry->userptr_spinlock);
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list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) {
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if (first) {
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first = false;
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seq_puts(s, "\n");
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seq_puts(s, " user virtual address size dma dir\n");
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seq_puts(s, "----------------------------------------------------------\n");
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}
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seq_printf(s,
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" 0x%-14llx %-10u %-30s\n",
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userptr->addr, userptr->size, dma_dir[userptr->dir]);
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}
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spin_unlock(&dev_entry->userptr_spinlock);
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if (!first)
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seq_puts(s, "\n");
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return 0;
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}
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static int vm_show(struct seq_file *s, void *data)
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{
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struct hl_debugfs_entry *entry = s->private;
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struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
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struct hl_ctx *ctx;
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struct hl_vm *vm;
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struct hl_vm_hash_node *hnode;
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struct hl_userptr *userptr;
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struct hl_vm_phys_pg_pack *phys_pg_pack = NULL;
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enum vm_type_t *vm_type;
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bool once = true;
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u64 j;
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int i;
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if (!dev_entry->hdev->mmu_enable)
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return 0;
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spin_lock(&dev_entry->ctx_mem_hash_spinlock);
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list_for_each_entry(ctx, &dev_entry->ctx_mem_hash_list, debugfs_list) {
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once = false;
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seq_puts(s, "\n\n----------------------------------------------------");
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seq_puts(s, "\n----------------------------------------------------\n\n");
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seq_printf(s, "ctx asid: %u\n", ctx->asid);
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seq_puts(s, "\nmappings:\n\n");
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seq_puts(s, " virtual address size handle\n");
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seq_puts(s, "----------------------------------------------------\n");
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mutex_lock(&ctx->mem_hash_lock);
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hash_for_each(ctx->mem_hash, i, hnode, node) {
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vm_type = hnode->ptr;
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if (*vm_type == VM_TYPE_USERPTR) {
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userptr = hnode->ptr;
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seq_printf(s,
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" 0x%-14llx %-10u\n",
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hnode->vaddr, userptr->size);
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} else {
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phys_pg_pack = hnode->ptr;
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seq_printf(s,
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" 0x%-14llx %-10llu %-4u\n",
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hnode->vaddr, phys_pg_pack->total_size,
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phys_pg_pack->handle);
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}
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}
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mutex_unlock(&ctx->mem_hash_lock);
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vm = &ctx->hdev->vm;
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spin_lock(&vm->idr_lock);
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if (!idr_is_empty(&vm->phys_pg_pack_handles))
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seq_puts(s, "\n\nallocations:\n");
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idr_for_each_entry(&vm->phys_pg_pack_handles, phys_pg_pack, i) {
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if (phys_pg_pack->asid != ctx->asid)
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continue;
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seq_printf(s, "\nhandle: %u\n", phys_pg_pack->handle);
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seq_printf(s, "page size: %u\n\n",
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phys_pg_pack->page_size);
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seq_puts(s, " physical address\n");
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seq_puts(s, "---------------------\n");
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for (j = 0 ; j < phys_pg_pack->npages ; j++) {
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seq_printf(s, " 0x%-14llx\n",
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phys_pg_pack->pages[j]);
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}
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}
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spin_unlock(&vm->idr_lock);
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}
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spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
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if (!once)
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seq_puts(s, "\n");
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return 0;
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}
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/* these inline functions are copied from mmu.c */
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static inline u64 get_hop0_addr(struct hl_ctx *ctx)
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{
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return ctx->hdev->asic_prop.mmu_pgt_addr +
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(ctx->asid * ctx->hdev->asic_prop.mmu_hop_table_size);
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}
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static inline u64 get_hopN_pte_addr(struct hl_ctx *ctx, u64 hop_addr,
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u64 virt_addr, u64 mask, u64 shift)
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{
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return hop_addr + ctx->hdev->asic_prop.mmu_pte_size *
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((virt_addr & mask) >> shift);
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}
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static inline u64 get_hop0_pte_addr(struct hl_ctx *ctx,
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struct hl_mmu_properties *mmu_specs,
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u64 hop_addr, u64 vaddr)
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{
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return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_specs->hop0_mask,
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mmu_specs->hop0_shift);
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}
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static inline u64 get_hop1_pte_addr(struct hl_ctx *ctx,
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struct hl_mmu_properties *mmu_specs,
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u64 hop_addr, u64 vaddr)
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{
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return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_specs->hop1_mask,
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mmu_specs->hop1_shift);
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}
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static inline u64 get_hop2_pte_addr(struct hl_ctx *ctx,
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struct hl_mmu_properties *mmu_specs,
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u64 hop_addr, u64 vaddr)
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{
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return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_specs->hop2_mask,
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mmu_specs->hop2_shift);
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}
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static inline u64 get_hop3_pte_addr(struct hl_ctx *ctx,
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struct hl_mmu_properties *mmu_specs,
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u64 hop_addr, u64 vaddr)
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{
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return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_specs->hop3_mask,
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mmu_specs->hop3_shift);
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}
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static inline u64 get_hop4_pte_addr(struct hl_ctx *ctx,
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struct hl_mmu_properties *mmu_specs,
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u64 hop_addr, u64 vaddr)
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{
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return get_hopN_pte_addr(ctx, hop_addr, vaddr, mmu_specs->hop4_mask,
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mmu_specs->hop4_shift);
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}
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static inline u64 get_next_hop_addr(u64 curr_pte)
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{
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if (curr_pte & PAGE_PRESENT_MASK)
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return curr_pte & HOP_PHYS_ADDR_MASK;
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else
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return ULLONG_MAX;
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}
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static int mmu_show(struct seq_file *s, void *data)
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{
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struct hl_debugfs_entry *entry = s->private;
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struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
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struct hl_device *hdev = dev_entry->hdev;
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struct asic_fixed_properties *prop = &hdev->asic_prop;
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struct hl_mmu_properties *mmu_prop;
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struct hl_ctx *ctx;
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bool is_dram_addr;
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u64 hop0_addr = 0, hop0_pte_addr = 0, hop0_pte = 0,
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hop1_addr = 0, hop1_pte_addr = 0, hop1_pte = 0,
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hop2_addr = 0, hop2_pte_addr = 0, hop2_pte = 0,
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hop3_addr = 0, hop3_pte_addr = 0, hop3_pte = 0,
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hop4_addr = 0, hop4_pte_addr = 0, hop4_pte = 0,
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virt_addr = dev_entry->mmu_addr;
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if (!hdev->mmu_enable)
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return 0;
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if (dev_entry->mmu_asid == HL_KERNEL_ASID_ID)
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ctx = hdev->kernel_ctx;
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else
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ctx = hdev->compute_ctx;
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if (!ctx) {
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dev_err(hdev->dev, "no ctx available\n");
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return 0;
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}
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is_dram_addr = hl_mem_area_inside_range(virt_addr, prop->dmmu.page_size,
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prop->va_space_dram_start_address,
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prop->va_space_dram_end_address);
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mmu_prop = is_dram_addr ? &prop->dmmu : &prop->pmmu;
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mutex_lock(&ctx->mmu_lock);
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/* the following lookup is copied from unmap() in mmu.c */
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hop0_addr = get_hop0_addr(ctx);
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hop0_pte_addr = get_hop0_pte_addr(ctx, mmu_prop, hop0_addr, virt_addr);
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hop0_pte = hdev->asic_funcs->read_pte(hdev, hop0_pte_addr);
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hop1_addr = get_next_hop_addr(hop0_pte);
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if (hop1_addr == ULLONG_MAX)
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goto not_mapped;
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hop1_pte_addr = get_hop1_pte_addr(ctx, mmu_prop, hop1_addr, virt_addr);
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hop1_pte = hdev->asic_funcs->read_pte(hdev, hop1_pte_addr);
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hop2_addr = get_next_hop_addr(hop1_pte);
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if (hop2_addr == ULLONG_MAX)
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goto not_mapped;
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hop2_pte_addr = get_hop2_pte_addr(ctx, mmu_prop, hop2_addr, virt_addr);
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hop2_pte = hdev->asic_funcs->read_pte(hdev, hop2_pte_addr);
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hop3_addr = get_next_hop_addr(hop2_pte);
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if (hop3_addr == ULLONG_MAX)
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goto not_mapped;
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hop3_pte_addr = get_hop3_pte_addr(ctx, mmu_prop, hop3_addr, virt_addr);
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hop3_pte = hdev->asic_funcs->read_pte(hdev, hop3_pte_addr);
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if (!(hop3_pte & LAST_MASK)) {
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hop4_addr = get_next_hop_addr(hop3_pte);
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if (hop4_addr == ULLONG_MAX)
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goto not_mapped;
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hop4_pte_addr = get_hop4_pte_addr(ctx, mmu_prop, hop4_addr,
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virt_addr);
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hop4_pte = hdev->asic_funcs->read_pte(hdev, hop4_pte_addr);
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if (!(hop4_pte & PAGE_PRESENT_MASK))
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goto not_mapped;
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} else {
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if (!(hop3_pte & PAGE_PRESENT_MASK))
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goto not_mapped;
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}
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seq_printf(s, "asid: %u, virt_addr: 0x%llx\n",
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dev_entry->mmu_asid, dev_entry->mmu_addr);
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seq_printf(s, "hop0_addr: 0x%llx\n", hop0_addr);
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seq_printf(s, "hop0_pte_addr: 0x%llx\n", hop0_pte_addr);
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seq_printf(s, "hop0_pte: 0x%llx\n", hop0_pte);
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seq_printf(s, "hop1_addr: 0x%llx\n", hop1_addr);
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seq_printf(s, "hop1_pte_addr: 0x%llx\n", hop1_pte_addr);
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seq_printf(s, "hop1_pte: 0x%llx\n", hop1_pte);
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seq_printf(s, "hop2_addr: 0x%llx\n", hop2_addr);
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seq_printf(s, "hop2_pte_addr: 0x%llx\n", hop2_pte_addr);
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seq_printf(s, "hop2_pte: 0x%llx\n", hop2_pte);
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seq_printf(s, "hop3_addr: 0x%llx\n", hop3_addr);
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seq_printf(s, "hop3_pte_addr: 0x%llx\n", hop3_pte_addr);
|
|
seq_printf(s, "hop3_pte: 0x%llx\n", hop3_pte);
|
|
|
|
if (!(hop3_pte & LAST_MASK)) {
|
|
seq_printf(s, "hop4_addr: 0x%llx\n", hop4_addr);
|
|
seq_printf(s, "hop4_pte_addr: 0x%llx\n", hop4_pte_addr);
|
|
seq_printf(s, "hop4_pte: 0x%llx\n", hop4_pte);
|
|
}
|
|
|
|
goto out;
|
|
|
|
not_mapped:
|
|
dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n",
|
|
virt_addr);
|
|
out:
|
|
mutex_unlock(&ctx->mmu_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t mmu_write(struct file *file, const char __user *buf,
|
|
size_t count, loff_t *f_pos)
|
|
{
|
|
struct seq_file *s = file->private_data;
|
|
struct hl_debugfs_entry *entry = s->private;
|
|
struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
|
|
struct hl_device *hdev = dev_entry->hdev;
|
|
char kbuf[MMU_KBUF_SIZE];
|
|
char *c;
|
|
ssize_t rc;
|
|
|
|
if (!hdev->mmu_enable)
|
|
return count;
|
|
|
|
if (count > sizeof(kbuf) - 1)
|
|
goto err;
|
|
if (copy_from_user(kbuf, buf, count))
|
|
goto err;
|
|
kbuf[count] = 0;
|
|
|
|
c = strchr(kbuf, ' ');
|
|
if (!c)
|
|
goto err;
|
|
*c = '\0';
|
|
|
|
rc = kstrtouint(kbuf, 10, &dev_entry->mmu_asid);
|
|
if (rc)
|
|
goto err;
|
|
|
|
if (strncmp(c+1, "0x", 2))
|
|
goto err;
|
|
rc = kstrtoull(c+3, 16, &dev_entry->mmu_addr);
|
|
if (rc)
|
|
goto err;
|
|
|
|
return count;
|
|
|
|
err:
|
|
dev_err(hdev->dev, "usage: echo <asid> <0xaddr> > mmu\n");
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int engines_show(struct seq_file *s, void *data)
|
|
{
|
|
struct hl_debugfs_entry *entry = s->private;
|
|
struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
|
|
struct hl_device *hdev = dev_entry->hdev;
|
|
|
|
if (atomic_read(&hdev->in_reset)) {
|
|
dev_warn_ratelimited(hdev->dev,
|
|
"Can't check device idle during reset\n");
|
|
return 0;
|
|
}
|
|
|
|
hdev->asic_funcs->is_device_idle(hdev, NULL, s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool hl_is_device_va(struct hl_device *hdev, u64 addr)
|
|
{
|
|
struct asic_fixed_properties *prop = &hdev->asic_prop;
|
|
|
|
if (!hdev->mmu_enable)
|
|
goto out;
|
|
|
|
if (hdev->dram_supports_virtual_memory &&
|
|
addr >= prop->va_space_dram_start_address &&
|
|
addr < prop->va_space_dram_end_address)
|
|
return true;
|
|
|
|
if (addr >= prop->va_space_host_start_address &&
|
|
addr < prop->va_space_host_end_address)
|
|
return true;
|
|
out:
|
|
return false;
|
|
}
|
|
|
|
static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr,
|
|
u64 *phys_addr)
|
|
{
|
|
struct hl_ctx *ctx = hdev->compute_ctx;
|
|
struct asic_fixed_properties *prop = &hdev->asic_prop;
|
|
struct hl_mmu_properties *mmu_prop;
|
|
u64 hop_addr, hop_pte_addr, hop_pte;
|
|
u64 offset_mask = HOP4_MASK | FLAGS_MASK;
|
|
int rc = 0;
|
|
bool is_dram_addr;
|
|
|
|
if (!ctx) {
|
|
dev_err(hdev->dev, "no ctx available\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
is_dram_addr = hl_mem_area_inside_range(virt_addr, prop->dmmu.page_size,
|
|
prop->va_space_dram_start_address,
|
|
prop->va_space_dram_end_address);
|
|
|
|
mmu_prop = is_dram_addr ? &prop->dmmu : &prop->pmmu;
|
|
|
|
mutex_lock(&ctx->mmu_lock);
|
|
|
|
/* hop 0 */
|
|
hop_addr = get_hop0_addr(ctx);
|
|
hop_pte_addr = get_hop0_pte_addr(ctx, mmu_prop, hop_addr, virt_addr);
|
|
hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
|
|
|
|
/* hop 1 */
|
|
hop_addr = get_next_hop_addr(hop_pte);
|
|
if (hop_addr == ULLONG_MAX)
|
|
goto not_mapped;
|
|
hop_pte_addr = get_hop1_pte_addr(ctx, mmu_prop, hop_addr, virt_addr);
|
|
hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
|
|
|
|
/* hop 2 */
|
|
hop_addr = get_next_hop_addr(hop_pte);
|
|
if (hop_addr == ULLONG_MAX)
|
|
goto not_mapped;
|
|
hop_pte_addr = get_hop2_pte_addr(ctx, mmu_prop, hop_addr, virt_addr);
|
|
hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
|
|
|
|
/* hop 3 */
|
|
hop_addr = get_next_hop_addr(hop_pte);
|
|
if (hop_addr == ULLONG_MAX)
|
|
goto not_mapped;
|
|
hop_pte_addr = get_hop3_pte_addr(ctx, mmu_prop, hop_addr, virt_addr);
|
|
hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
|
|
|
|
if (!(hop_pte & LAST_MASK)) {
|
|
/* hop 4 */
|
|
hop_addr = get_next_hop_addr(hop_pte);
|
|
if (hop_addr == ULLONG_MAX)
|
|
goto not_mapped;
|
|
hop_pte_addr = get_hop4_pte_addr(ctx, mmu_prop, hop_addr,
|
|
virt_addr);
|
|
hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
|
|
|
|
offset_mask = FLAGS_MASK;
|
|
}
|
|
|
|
if (!(hop_pte & PAGE_PRESENT_MASK))
|
|
goto not_mapped;
|
|
|
|
*phys_addr = (hop_pte & ~offset_mask) | (virt_addr & offset_mask);
|
|
|
|
goto out;
|
|
|
|
not_mapped:
|
|
dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n",
|
|
virt_addr);
|
|
rc = -EINVAL;
|
|
out:
|
|
mutex_unlock(&ctx->mmu_lock);
|
|
return rc;
|
|
}
|
|
|
|
static ssize_t hl_data_read32(struct file *f, char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
char tmp_buf[32];
|
|
u64 addr = entry->addr;
|
|
u32 val;
|
|
ssize_t rc;
|
|
|
|
if (atomic_read(&hdev->in_reset)) {
|
|
dev_warn_ratelimited(hdev->dev, "Can't read during reset\n");
|
|
return 0;
|
|
}
|
|
|
|
if (*ppos)
|
|
return 0;
|
|
|
|
if (hl_is_device_va(hdev, addr)) {
|
|
rc = device_va_to_pa(hdev, addr, &addr);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
rc = hdev->asic_funcs->debugfs_read32(hdev, addr, &val);
|
|
if (rc) {
|
|
dev_err(hdev->dev, "Failed to read from 0x%010llx\n", addr);
|
|
return rc;
|
|
}
|
|
|
|
sprintf(tmp_buf, "0x%08x\n", val);
|
|
return simple_read_from_buffer(buf, count, ppos, tmp_buf,
|
|
strlen(tmp_buf));
|
|
}
|
|
|
|
static ssize_t hl_data_write32(struct file *f, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
u64 addr = entry->addr;
|
|
u32 value;
|
|
ssize_t rc;
|
|
|
|
if (atomic_read(&hdev->in_reset)) {
|
|
dev_warn_ratelimited(hdev->dev, "Can't write during reset\n");
|
|
return 0;
|
|
}
|
|
|
|
rc = kstrtouint_from_user(buf, count, 16, &value);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (hl_is_device_va(hdev, addr)) {
|
|
rc = device_va_to_pa(hdev, addr, &addr);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
rc = hdev->asic_funcs->debugfs_write32(hdev, addr, value);
|
|
if (rc) {
|
|
dev_err(hdev->dev, "Failed to write 0x%08x to 0x%010llx\n",
|
|
value, addr);
|
|
return rc;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t hl_get_power_state(struct file *f, char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
char tmp_buf[200];
|
|
int i;
|
|
|
|
if (*ppos)
|
|
return 0;
|
|
|
|
if (hdev->pdev->current_state == PCI_D0)
|
|
i = 1;
|
|
else if (hdev->pdev->current_state == PCI_D3hot)
|
|
i = 2;
|
|
else
|
|
i = 3;
|
|
|
|
sprintf(tmp_buf,
|
|
"current power state: %d\n1 - D0\n2 - D3hot\n3 - Unknown\n", i);
|
|
return simple_read_from_buffer(buf, count, ppos, tmp_buf,
|
|
strlen(tmp_buf));
|
|
}
|
|
|
|
static ssize_t hl_set_power_state(struct file *f, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
u32 value;
|
|
ssize_t rc;
|
|
|
|
rc = kstrtouint_from_user(buf, count, 10, &value);
|
|
if (rc)
|
|
return rc;
|
|
|
|
if (value == 1) {
|
|
pci_set_power_state(hdev->pdev, PCI_D0);
|
|
pci_restore_state(hdev->pdev);
|
|
rc = pci_enable_device(hdev->pdev);
|
|
} else if (value == 2) {
|
|
pci_save_state(hdev->pdev);
|
|
pci_disable_device(hdev->pdev);
|
|
pci_set_power_state(hdev->pdev, PCI_D3hot);
|
|
} else {
|
|
dev_dbg(hdev->dev, "invalid power state value %u\n", value);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t hl_i2c_data_read(struct file *f, char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
char tmp_buf[32];
|
|
u32 val;
|
|
ssize_t rc;
|
|
|
|
if (*ppos)
|
|
return 0;
|
|
|
|
rc = hl_debugfs_i2c_read(hdev, entry->i2c_bus, entry->i2c_addr,
|
|
entry->i2c_reg, &val);
|
|
if (rc) {
|
|
dev_err(hdev->dev,
|
|
"Failed to read from I2C bus %d, addr %d, reg %d\n",
|
|
entry->i2c_bus, entry->i2c_addr, entry->i2c_reg);
|
|
return rc;
|
|
}
|
|
|
|
sprintf(tmp_buf, "0x%02x\n", val);
|
|
rc = simple_read_from_buffer(buf, count, ppos, tmp_buf,
|
|
strlen(tmp_buf));
|
|
|
|
return rc;
|
|
}
|
|
|
|
static ssize_t hl_i2c_data_write(struct file *f, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
u32 value;
|
|
ssize_t rc;
|
|
|
|
rc = kstrtouint_from_user(buf, count, 16, &value);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = hl_debugfs_i2c_write(hdev, entry->i2c_bus, entry->i2c_addr,
|
|
entry->i2c_reg, value);
|
|
if (rc) {
|
|
dev_err(hdev->dev,
|
|
"Failed to write 0x%02x to I2C bus %d, addr %d, reg %d\n",
|
|
value, entry->i2c_bus, entry->i2c_addr, entry->i2c_reg);
|
|
return rc;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t hl_led0_write(struct file *f, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
u32 value;
|
|
ssize_t rc;
|
|
|
|
rc = kstrtouint_from_user(buf, count, 10, &value);
|
|
if (rc)
|
|
return rc;
|
|
|
|
value = value ? 1 : 0;
|
|
|
|
hl_debugfs_led_set(hdev, 0, value);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t hl_led1_write(struct file *f, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
u32 value;
|
|
ssize_t rc;
|
|
|
|
rc = kstrtouint_from_user(buf, count, 10, &value);
|
|
if (rc)
|
|
return rc;
|
|
|
|
value = value ? 1 : 0;
|
|
|
|
hl_debugfs_led_set(hdev, 1, value);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t hl_led2_write(struct file *f, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
u32 value;
|
|
ssize_t rc;
|
|
|
|
rc = kstrtouint_from_user(buf, count, 10, &value);
|
|
if (rc)
|
|
return rc;
|
|
|
|
value = value ? 1 : 0;
|
|
|
|
hl_debugfs_led_set(hdev, 2, value);
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t hl_device_read(struct file *f, char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
static const char *help =
|
|
"Valid values: disable, enable, suspend, resume, cpu_timeout\n";
|
|
return simple_read_from_buffer(buf, count, ppos, help, strlen(help));
|
|
}
|
|
|
|
static ssize_t hl_device_write(struct file *f, const char __user *buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
|
|
struct hl_device *hdev = entry->hdev;
|
|
char data[30] = {0};
|
|
|
|
/* don't allow partial writes */
|
|
if (*ppos != 0)
|
|
return 0;
|
|
|
|
simple_write_to_buffer(data, 29, ppos, buf, count);
|
|
|
|
if (strncmp("disable", data, strlen("disable")) == 0) {
|
|
hdev->disabled = true;
|
|
} else if (strncmp("enable", data, strlen("enable")) == 0) {
|
|
hdev->disabled = false;
|
|
} else if (strncmp("suspend", data, strlen("suspend")) == 0) {
|
|
hdev->asic_funcs->suspend(hdev);
|
|
} else if (strncmp("resume", data, strlen("resume")) == 0) {
|
|
hdev->asic_funcs->resume(hdev);
|
|
} else if (strncmp("cpu_timeout", data, strlen("cpu_timeout")) == 0) {
|
|
hdev->device_cpu_disabled = true;
|
|
} else {
|
|
dev_err(hdev->dev,
|
|
"Valid values: disable, enable, suspend, resume, cpu_timeout\n");
|
|
count = -EINVAL;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations hl_data32b_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = hl_data_read32,
|
|
.write = hl_data_write32
|
|
};
|
|
|
|
static const struct file_operations hl_i2c_data_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = hl_i2c_data_read,
|
|
.write = hl_i2c_data_write
|
|
};
|
|
|
|
static const struct file_operations hl_power_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = hl_get_power_state,
|
|
.write = hl_set_power_state
|
|
};
|
|
|
|
static const struct file_operations hl_led0_fops = {
|
|
.owner = THIS_MODULE,
|
|
.write = hl_led0_write
|
|
};
|
|
|
|
static const struct file_operations hl_led1_fops = {
|
|
.owner = THIS_MODULE,
|
|
.write = hl_led1_write
|
|
};
|
|
|
|
static const struct file_operations hl_led2_fops = {
|
|
.owner = THIS_MODULE,
|
|
.write = hl_led2_write
|
|
};
|
|
|
|
static const struct file_operations hl_device_fops = {
|
|
.owner = THIS_MODULE,
|
|
.read = hl_device_read,
|
|
.write = hl_device_write
|
|
};
|
|
|
|
static const struct hl_info_list hl_debugfs_list[] = {
|
|
{"command_buffers", command_buffers_show, NULL},
|
|
{"command_submission", command_submission_show, NULL},
|
|
{"command_submission_jobs", command_submission_jobs_show, NULL},
|
|
{"userptr", userptr_show, NULL},
|
|
{"vm", vm_show, NULL},
|
|
{"mmu", mmu_show, mmu_write},
|
|
{"engines", engines_show, NULL}
|
|
};
|
|
|
|
static int hl_debugfs_open(struct inode *inode, struct file *file)
|
|
{
|
|
struct hl_debugfs_entry *node = inode->i_private;
|
|
|
|
return single_open(file, node->info_ent->show, node);
|
|
}
|
|
|
|
static ssize_t hl_debugfs_write(struct file *file, const char __user *buf,
|
|
size_t count, loff_t *f_pos)
|
|
{
|
|
struct hl_debugfs_entry *node = file->f_inode->i_private;
|
|
|
|
if (node->info_ent->write)
|
|
return node->info_ent->write(file, buf, count, f_pos);
|
|
else
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
static const struct file_operations hl_debugfs_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = hl_debugfs_open,
|
|
.read = seq_read,
|
|
.write = hl_debugfs_write,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
void hl_debugfs_add_device(struct hl_device *hdev)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
|
|
int count = ARRAY_SIZE(hl_debugfs_list);
|
|
struct hl_debugfs_entry *entry;
|
|
struct dentry *ent;
|
|
int i;
|
|
|
|
dev_entry->hdev = hdev;
|
|
dev_entry->entry_arr = kmalloc_array(count,
|
|
sizeof(struct hl_debugfs_entry),
|
|
GFP_KERNEL);
|
|
if (!dev_entry->entry_arr)
|
|
return;
|
|
|
|
INIT_LIST_HEAD(&dev_entry->file_list);
|
|
INIT_LIST_HEAD(&dev_entry->cb_list);
|
|
INIT_LIST_HEAD(&dev_entry->cs_list);
|
|
INIT_LIST_HEAD(&dev_entry->cs_job_list);
|
|
INIT_LIST_HEAD(&dev_entry->userptr_list);
|
|
INIT_LIST_HEAD(&dev_entry->ctx_mem_hash_list);
|
|
mutex_init(&dev_entry->file_mutex);
|
|
spin_lock_init(&dev_entry->cb_spinlock);
|
|
spin_lock_init(&dev_entry->cs_spinlock);
|
|
spin_lock_init(&dev_entry->cs_job_spinlock);
|
|
spin_lock_init(&dev_entry->userptr_spinlock);
|
|
spin_lock_init(&dev_entry->ctx_mem_hash_spinlock);
|
|
|
|
dev_entry->root = debugfs_create_dir(dev_name(hdev->dev),
|
|
hl_debug_root);
|
|
|
|
debugfs_create_x64("addr",
|
|
0644,
|
|
dev_entry->root,
|
|
&dev_entry->addr);
|
|
|
|
debugfs_create_file("data32",
|
|
0644,
|
|
dev_entry->root,
|
|
dev_entry,
|
|
&hl_data32b_fops);
|
|
|
|
debugfs_create_file("set_power_state",
|
|
0200,
|
|
dev_entry->root,
|
|
dev_entry,
|
|
&hl_power_fops);
|
|
|
|
debugfs_create_u8("i2c_bus",
|
|
0644,
|
|
dev_entry->root,
|
|
&dev_entry->i2c_bus);
|
|
|
|
debugfs_create_u8("i2c_addr",
|
|
0644,
|
|
dev_entry->root,
|
|
&dev_entry->i2c_addr);
|
|
|
|
debugfs_create_u8("i2c_reg",
|
|
0644,
|
|
dev_entry->root,
|
|
&dev_entry->i2c_reg);
|
|
|
|
debugfs_create_file("i2c_data",
|
|
0644,
|
|
dev_entry->root,
|
|
dev_entry,
|
|
&hl_i2c_data_fops);
|
|
|
|
debugfs_create_file("led0",
|
|
0200,
|
|
dev_entry->root,
|
|
dev_entry,
|
|
&hl_led0_fops);
|
|
|
|
debugfs_create_file("led1",
|
|
0200,
|
|
dev_entry->root,
|
|
dev_entry,
|
|
&hl_led1_fops);
|
|
|
|
debugfs_create_file("led2",
|
|
0200,
|
|
dev_entry->root,
|
|
dev_entry,
|
|
&hl_led2_fops);
|
|
|
|
debugfs_create_file("device",
|
|
0200,
|
|
dev_entry->root,
|
|
dev_entry,
|
|
&hl_device_fops);
|
|
|
|
for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) {
|
|
|
|
ent = debugfs_create_file(hl_debugfs_list[i].name,
|
|
0444,
|
|
dev_entry->root,
|
|
entry,
|
|
&hl_debugfs_fops);
|
|
entry->dent = ent;
|
|
entry->info_ent = &hl_debugfs_list[i];
|
|
entry->dev_entry = dev_entry;
|
|
}
|
|
}
|
|
|
|
void hl_debugfs_remove_device(struct hl_device *hdev)
|
|
{
|
|
struct hl_dbg_device_entry *entry = &hdev->hl_debugfs;
|
|
|
|
debugfs_remove_recursive(entry->root);
|
|
|
|
mutex_destroy(&entry->file_mutex);
|
|
kfree(entry->entry_arr);
|
|
}
|
|
|
|
void hl_debugfs_add_file(struct hl_fpriv *hpriv)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;
|
|
|
|
mutex_lock(&dev_entry->file_mutex);
|
|
list_add(&hpriv->debugfs_list, &dev_entry->file_list);
|
|
mutex_unlock(&dev_entry->file_mutex);
|
|
}
|
|
|
|
void hl_debugfs_remove_file(struct hl_fpriv *hpriv)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;
|
|
|
|
mutex_lock(&dev_entry->file_mutex);
|
|
list_del(&hpriv->debugfs_list);
|
|
mutex_unlock(&dev_entry->file_mutex);
|
|
}
|
|
|
|
void hl_debugfs_add_cb(struct hl_cb *cb)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->cb_spinlock);
|
|
list_add(&cb->debugfs_list, &dev_entry->cb_list);
|
|
spin_unlock(&dev_entry->cb_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_remove_cb(struct hl_cb *cb)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->cb_spinlock);
|
|
list_del(&cb->debugfs_list);
|
|
spin_unlock(&dev_entry->cb_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_add_cs(struct hl_cs *cs)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->cs_spinlock);
|
|
list_add(&cs->debugfs_list, &dev_entry->cs_list);
|
|
spin_unlock(&dev_entry->cs_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_remove_cs(struct hl_cs *cs)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->cs_spinlock);
|
|
list_del(&cs->debugfs_list);
|
|
spin_unlock(&dev_entry->cs_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_add_job(struct hl_device *hdev, struct hl_cs_job *job)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->cs_job_spinlock);
|
|
list_add(&job->debugfs_list, &dev_entry->cs_job_list);
|
|
spin_unlock(&dev_entry->cs_job_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_remove_job(struct hl_device *hdev, struct hl_cs_job *job)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->cs_job_spinlock);
|
|
list_del(&job->debugfs_list);
|
|
spin_unlock(&dev_entry->cs_job_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_add_userptr(struct hl_device *hdev, struct hl_userptr *userptr)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->userptr_spinlock);
|
|
list_add(&userptr->debugfs_list, &dev_entry->userptr_list);
|
|
spin_unlock(&dev_entry->userptr_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_remove_userptr(struct hl_device *hdev,
|
|
struct hl_userptr *userptr)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->userptr_spinlock);
|
|
list_del(&userptr->debugfs_list);
|
|
spin_unlock(&dev_entry->userptr_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->ctx_mem_hash_spinlock);
|
|
list_add(&ctx->debugfs_list, &dev_entry->ctx_mem_hash_list);
|
|
spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
|
|
}
|
|
|
|
void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)
|
|
{
|
|
struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
|
|
|
|
spin_lock(&dev_entry->ctx_mem_hash_spinlock);
|
|
list_del(&ctx->debugfs_list);
|
|
spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
|
|
}
|
|
|
|
void __init hl_debugfs_init(void)
|
|
{
|
|
hl_debug_root = debugfs_create_dir("habanalabs", NULL);
|
|
}
|
|
|
|
void hl_debugfs_fini(void)
|
|
{
|
|
debugfs_remove_recursive(hl_debug_root);
|
|
}
|