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path: root/drivers/misc/habanalabs/common/debugfs.c
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Diffstat (limited to 'drivers/misc/habanalabs/common/debugfs.c')
-rw-r--r--drivers/misc/habanalabs/common/debugfs.c97
1 files changed, 68 insertions, 29 deletions
diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c
index 1f2a3dc6c4e2..fc084ee5106e 100644
--- a/drivers/misc/habanalabs/common/debugfs.c
+++ b/drivers/misc/habanalabs/common/debugfs.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Copyright 2016-2019 HabanaLabs, Ltd.
+ * Copyright 2016-2021 HabanaLabs, Ltd.
* All Rights Reserved.
*/
@@ -15,19 +15,25 @@
#define MMU_ADDR_BUF_SIZE 40
#define MMU_ASID_BUF_SIZE 10
#define MMU_KBUF_SIZE (MMU_ADDR_BUF_SIZE + MMU_ASID_BUF_SIZE)
+#define I2C_MAX_TRANSACTION_LEN 8
static struct dentry *hl_debug_root;
static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
- u8 i2c_reg, long *val)
+ u8 i2c_reg, u8 i2c_len, u64 *val)
{
struct cpucp_packet pkt;
- u64 result;
int rc;
if (!hl_device_operational(hdev, NULL))
return -EBUSY;
+ if (i2c_len > I2C_MAX_TRANSACTION_LEN) {
+ dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n",
+ i2c_len, I2C_MAX_TRANSACTION_LEN);
+ return -EINVAL;
+ }
+
memset(&pkt, 0, sizeof(pkt));
pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_RD <<
@@ -35,12 +41,10 @@ static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
pkt.i2c_bus = i2c_bus;
pkt.i2c_addr = i2c_addr;
pkt.i2c_reg = i2c_reg;
+ pkt.i2c_len = i2c_len;
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
- 0, &result);
-
- *val = (long) result;
-
+ 0, val);
if (rc)
dev_err(hdev->dev, "Failed to read from I2C, error %d\n", rc);
@@ -48,7 +52,7 @@ static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
}
static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
- u8 i2c_reg, u32 val)
+ u8 i2c_reg, u8 i2c_len, u64 val)
{
struct cpucp_packet pkt;
int rc;
@@ -56,6 +60,12 @@ static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
if (!hl_device_operational(hdev, NULL))
return -EBUSY;
+ if (i2c_len > I2C_MAX_TRANSACTION_LEN) {
+ dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n",
+ i2c_len, I2C_MAX_TRANSACTION_LEN);
+ return -EINVAL;
+ }
+
memset(&pkt, 0, sizeof(pkt));
pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_WR <<
@@ -63,6 +73,7 @@ static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
pkt.i2c_bus = i2c_bus;
pkt.i2c_addr = i2c_addr;
pkt.i2c_reg = i2c_reg;
+ pkt.i2c_len = i2c_len;
pkt.value = cpu_to_le64(val);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
@@ -235,6 +246,8 @@ static int vm_show(struct seq_file *s, void *data)
struct hl_vm_hash_node *hnode;
struct hl_userptr *userptr;
struct hl_vm_phys_pg_pack *phys_pg_pack = NULL;
+ struct hl_va_range *va_range;
+ struct hl_vm_va_block *va_block;
enum vm_type *vm_type;
bool once = true;
u64 j;
@@ -314,6 +327,25 @@ static int vm_show(struct seq_file *s, void *data)
spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
+ ctx = hl_get_compute_ctx(dev_entry->hdev);
+ if (ctx) {
+ seq_puts(s, "\nVA ranges:\n\n");
+ for (i = HL_VA_RANGE_TYPE_HOST ; i < HL_VA_RANGE_TYPE_MAX ; ++i) {
+ va_range = ctx->va_range[i];
+ seq_printf(s, " va_range %d\n", i);
+ seq_puts(s, "---------------------\n");
+ mutex_lock(&va_range->lock);
+ list_for_each_entry(va_block, &va_range->list, node) {
+ seq_printf(s, "%#16llx - %#16llx (%#llx)\n",
+ va_block->start, va_block->end,
+ va_block->size);
+ }
+ mutex_unlock(&va_range->lock);
+ seq_puts(s, "\n");
+ }
+ hl_ctx_put(ctx);
+ }
+
if (!once)
seq_puts(s, "\n");
@@ -407,7 +439,7 @@ static int mmu_show(struct seq_file *s, void *data)
if (dev_entry->mmu_asid == HL_KERNEL_ASID_ID)
ctx = hdev->kernel_ctx;
else
- ctx = hdev->compute_ctx;
+ ctx = hl_get_compute_ctx(hdev);
if (!ctx) {
dev_err(hdev->dev, "no ctx available\n");
@@ -495,7 +527,7 @@ static int engines_show(struct seq_file *s, void *data)
struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
struct hl_device *hdev = dev_entry->hdev;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev,
"Can't check device idle during reset\n");
return 0;
@@ -560,7 +592,7 @@ static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr, u32 size,
u64 *phys_addr)
{
struct hl_vm_phys_pg_pack *phys_pg_pack;
- struct hl_ctx *ctx = hdev->compute_ctx;
+ struct hl_ctx *ctx;
struct hl_vm_hash_node *hnode;
u64 end_address, range_size;
struct hl_userptr *userptr;
@@ -568,6 +600,8 @@ static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr, u32 size,
bool valid = false;
int i, rc = 0;
+ ctx = hl_get_compute_ctx(hdev);
+
if (!ctx) {
dev_err(hdev->dev, "no ctx available\n");
return -EINVAL;
@@ -624,7 +658,7 @@ static ssize_t hl_data_read32(struct file *f, char __user *buf,
ssize_t rc;
u32 val;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev, "Can't read during reset\n");
return 0;
}
@@ -660,7 +694,7 @@ static ssize_t hl_data_write32(struct file *f, const char __user *buf,
u32 value;
ssize_t rc;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev, "Can't write during reset\n");
return 0;
}
@@ -697,7 +731,7 @@ static ssize_t hl_data_read64(struct file *f, char __user *buf,
ssize_t rc;
u64 val;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev, "Can't read during reset\n");
return 0;
}
@@ -733,7 +767,7 @@ static ssize_t hl_data_write64(struct file *f, const char __user *buf,
u64 value;
ssize_t rc;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev, "Can't write during reset\n");
return 0;
}
@@ -768,7 +802,7 @@ static ssize_t hl_dma_size_write(struct file *f, const char __user *buf,
ssize_t rc;
u32 size;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev, "Can't DMA during reset\n");
return 0;
}
@@ -874,22 +908,22 @@ static ssize_t hl_i2c_data_read(struct file *f, char __user *buf,
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
struct hl_device *hdev = entry->hdev;
char tmp_buf[32];
- long val;
+ u64 val;
ssize_t rc;
if (*ppos)
return 0;
rc = hl_debugfs_i2c_read(hdev, entry->i2c_bus, entry->i2c_addr,
- entry->i2c_reg, &val);
+ entry->i2c_reg, entry->i2c_len, &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);
+ "Failed to read from I2C bus %d, addr %d, reg %d, len %d\n",
+ entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len);
return rc;
}
- sprintf(tmp_buf, "0x%02lx\n", val);
+ sprintf(tmp_buf, "%#02llx\n", val);
rc = simple_read_from_buffer(buf, count, ppos, tmp_buf,
strlen(tmp_buf));
@@ -901,19 +935,19 @@ static ssize_t hl_i2c_data_write(struct file *f, const char __user *buf,
{
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
struct hl_device *hdev = entry->hdev;
- u32 value;
+ u64 value;
ssize_t rc;
- rc = kstrtouint_from_user(buf, count, 16, &value);
+ rc = kstrtou64_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);
+ entry->i2c_reg, entry->i2c_len, 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);
+ "Failed to write %#02llx to I2C bus %d, addr %d, reg %d, len %d\n",
+ value, entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len);
return rc;
}
@@ -1043,7 +1077,7 @@ static ssize_t hl_clk_gate_write(struct file *f, const char __user *buf,
u64 value;
ssize_t rc;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev,
"Can't change clock gating during reset\n");
return 0;
@@ -1085,7 +1119,7 @@ static ssize_t hl_stop_on_err_write(struct file *f, const char __user *buf,
u32 value;
ssize_t rc;
- if (atomic_read(&hdev->in_reset)) {
+ if (hdev->reset_info.in_reset) {
dev_warn_ratelimited(hdev->dev,
"Can't change stop on error during reset\n");
return 0;
@@ -1396,6 +1430,11 @@ void hl_debugfs_add_device(struct hl_device *hdev)
dev_entry->root,
&dev_entry->i2c_reg);
+ debugfs_create_u8("i2c_len",
+ 0644,
+ dev_entry->root,
+ &dev_entry->i2c_len);
+
debugfs_create_file("i2c_data",
0644,
dev_entry->root,
@@ -1458,7 +1497,7 @@ void hl_debugfs_add_device(struct hl_device *hdev)
debugfs_create_x8("skip_reset_on_timeout",
0644,
dev_entry->root,
- &hdev->skip_reset_on_timeout);
+ &hdev->reset_info.skip_reset_on_timeout);
debugfs_create_file("state_dump",
0600,
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-20 08:20:29 +0000