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- /*
- *****************************************************************************
- * Copyright (c) Imagination Technologies Ltd.
- *
- * The contents of this file are subject to the MIT license as set out below.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * Alternatively, the contents of this file may be used under the terms of the
- * GNU General Public License Version 2 ("GPL")in which case the provisions of
- * GPL are applicable instead of those above.
- *
- * If you wish to allow use of your version of this file only under the terms
- * of GPL, and not to allow others to use your version of this file under the
- * terms of the MIT license, indicate your decision by deleting the provisions
- * above and replace them with the notice and other provisions required by GPL
- * as set out in the file called "GPLHEADER" included in this distribution. If
- * you do not delete the provisions above, a recipient may use your version of
- * this file under the terms of either the MIT license or GPL.
- *
- * This License is also included in this distribution in the file called
- * "MIT_COPYING".
- *
- *****************************************************************************/
- #include <linux/delay.h>
- #include <linux/slab.h>
- #include <linux/device.h>
- #include <linux/gfp.h>
- #include <linux/moduleparam.h>
- #include <linux/list.h>
- #include <linux/debugfs.h>
- #include <linux/uaccess.h>
- #include <uapi/vha.h>
- #include "vha_common.h"
- #include "vha_plat.h"
- #include "vha_io.h"
- #ifdef CONFIG_DEBUG_FS
- #define VHA_DBG_CONBINED_CRC_BUF_SIZE 0x1000
- #define VHA_DBG_CRC_BUF_SIZE 0x2000
- static uint32_t cnn_crc_size_kB;
- static uint32_t cnn_dbg_size_kB;
- static bool cnn_dbg_pdump_enable = true;
- module_param(cnn_crc_size_kB, uint, 0444);
- module_param(cnn_dbg_size_kB, uint, 0444);
- module_param(cnn_dbg_pdump_enable, bool, 0444);
- MODULE_PARM_DESC(cnn_crc_size_kB, "size of hw CRC buffer");
- MODULE_PARM_DESC(cnn_dbg_size_kB, "size of hw DEBUG buffer");
- MODULE_PARM_DESC(cnn_dbg_pdump_enable,
- "DEBUG buffer is captured into pdump file");
- static uint32_t cnn_crc_mode;
- static uint32_t cnn_dbg_modes[2];
- module_param(cnn_crc_mode, uint, 0444);
- module_param_array(cnn_dbg_modes, uint, NULL, 0444);
- MODULE_PARM_DESC(cnn_crc_mode,
- "CRC CONTROL: mode for CNN_CRC_ENABLE: 0=disable 1=stream 2=layer 3=pass");
- MODULE_PARM_DESC(cnn_dbg_modes,
- "DEBUG CONTROL: modes for PERF and BAND_ENABLE: 0=disable 1=stream 2=layer 3=pass");
- #ifdef HW_AX3
- static uint32_t cnn_crc_mask = 0;
- module_param(cnn_crc_mask, uint, 0444);
- MODULE_PARM_DESC(cnn_crc_mask,
- "CRC MASK: 0=no mask 1=debug silicon 2=safety critical 3=reserved");
- #endif
- static uint32_t cnn_pdump_flush_dbg = 1;
- module_param(cnn_pdump_flush_dbg, uint, 0444);
- MODULE_PARM_DESC(cnn_pdump_flush_dbg,
- "PDUMP: flushing debug buffs: 0:session,1:stream(default)");
- static unsigned long vaa_offset = 0;
- module_param(vaa_offset, ulong, 0444);
- MODULE_PARM_DESC(vaa_offset,
- "Page aligned offset in virtual address allocator space for kernel buffers."
- " NOTE: given offset decreases the size of vaa heap, accordingly");
- struct vha_dbgfs_ctx {
- struct dentry *debugfs_dir;
- #if defined VHA_EVENT_INJECT
- struct dentry *event_inject_dir;
- #endif
- #if defined VHA_FUNCT_CTRL
- struct dentry *funct_ctrl_dir;
- #endif
- struct vha_regset regset;
- uint64_t rtm_ctrl;
- uint64_t ioreg_addr;
- };
- /* MMU PTE dump info */
- struct vha_ptedump {
- struct vha_session *session;
- /* Actual address */
- uint64_t vaddr;
- /* Selected mmu sw context to be dumped */
- unsigned cur_cid;
- /* Configuration info */
- size_t page_size;
- size_t virt_size;
- };
- static void *vha_mmu_ptedump_start(struct seq_file *seq, loff_t *pos)
- {
- struct vha_ptedump *ctx = seq->private;
- struct vha_session *session;
- if (!ctx)
- return NULL;
- session = ctx->session;
- if (!session)
- return NULL;
- /* Get mmu configuration info - the same one the tables were built with */
- img_mmu_get_conf(&ctx->page_size, &ctx->virt_size);
- ctx->vaddr = *pos * ctx->page_size;
- if (*pos == 0) {
- uint64_t pc_addr = img_mem_get_single_page(session->mem_ctx,
- session->mmu_ctxs[ctx->cur_cid-1].pc_bufid, 0);
- seq_printf(seq, " Session hw_ctxid:%x -> PC addr:%#llx\n",
- session->mmu_ctxs[ctx->cur_cid-1].hw_id, pc_addr);
- seq_printf(seq, " [ virtaddr ] [ physaddr ] [flags]\n");
- }
- return ctx;
- }
- static void *vha_mmu_ptedump_next(struct seq_file *seq, void *priv, loff_t *pos)
- {
- struct vha_ptedump *ctx = priv;
- struct vha_session *session;
- if (!ctx)
- return NULL;
- session = ctx->session;
- (*pos)++;
- ctx->vaddr = *pos * ctx->page_size;
- if (ctx->vaddr <= (1ULL<<ctx->virt_size)-ctx->page_size)
- return ctx;
- if (ctx->cur_cid < ARRAY_SIZE(session->mmu_ctxs)) {
- /* Switch to next context & reset position */
- ctx->cur_cid++;
- *pos = 0;
- vha_mmu_ptedump_start(seq, pos);
- return ctx;
- }
- return NULL;
- }
- static int vha_mmu_ptedump_show(struct seq_file *seq, void *priv)
- {
- struct vha_ptedump *ctx = priv;
- struct vha_session *session;
- phys_addr_t paddr;
- uint8_t flags;
- int ret = 0;
- if (!ctx)
- return -EINVAL;
- session = ctx->session;
- if (!session)
- return -EINVAL;
- if (ctx->vaddr > (1ULL<<ctx->virt_size)-ctx->page_size)
- return SEQ_SKIP;
- paddr = img_mmu_get_paddr(session->mmu_ctxs[ctx->cur_cid-1].ctx,
- ctx->vaddr, &flags);
- if (flags) {
- struct vha_buffer *buf = vha_find_bufvaddr(session, ctx->vaddr);
- seq_printf(seq, " 0x%010llx 0x%010llx 0x%04x (%s)\n",
- ctx->vaddr, paddr, flags, buf ? buf->name : "???");
- } else if (!(ctx->vaddr % 0x40000000)) {
- /* Give some time to others, to avoid soft lockup warnings
- * Call yield() for every GB boundary of virtual address space */
- yield();
- }
- return ret;
- }
- static void vha_mmu_ptedump_stop(struct seq_file *seq, void *priv)
- {
- /* Nothing to do */
- }
- static const struct seq_operations vha_mmu_ptedump_sops = {
- .start = vha_mmu_ptedump_start,
- .next = vha_mmu_ptedump_next,
- .show = vha_mmu_ptedump_show,
- .stop = vha_mmu_ptedump_stop
- };
- static int vha_mmu_ptedump_open(struct inode *inode, struct file *file)
- {
- int ret;
- ret = seq_open(file, &vha_mmu_ptedump_sops);
- if (!ret) {
- struct vha_session *session;
- struct seq_file *seq;
- struct vha_ptedump *ctx;
- seq = file->private_data;
- session = inode->i_private;
- if (!session)
- return -EINVAL;
- ctx = kzalloc(sizeof(struct vha_ptedump), GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
- ctx->session = session;
- seq->private = ctx;
- ctx->cur_cid = 1;
- ret = mutex_lock_interruptible(&session->vha->lock);
- }
- return ret;
- }
- static int vha_mmu_ptedump_release(struct inode *inode, struct file *file)
- {
- struct seq_file *seq = file->private_data;
- struct vha_session *session;
- struct vha_ptedump *ctx;
- if (!seq)
- return -EINVAL;
- ctx = seq->private;
- session = ctx->session;
- if (session)
- mutex_unlock(&session->vha->lock);
- kfree(ctx);
- return seq_release(inode, file);
- }
- static const struct file_operations vha_mmu_ptedump_fops = {
- .owner = THIS_MODULE,
- .open = vha_mmu_ptedump_open,
- .llseek = seq_lseek,
- .release = vha_mmu_ptedump_release,
- .read = seq_read,
- };
- static void *vha_buffer_dump_start(struct seq_file *seq, loff_t *pos)
- {
- struct vha_session *session = seq->private;
- int ret;
- if (session == NULL) {
- pr_warn("Invalid VHA session pointer...\n");
- return NULL;
- }
- if (list_empty(&session->bufs))
- return NULL;
- ret = mutex_lock_interruptible(&session->vha->lock);
- if (ret) {
- pr_warn("Error while trying to get vha lock (%d)...\n", ret);
- return NULL;
- }
- seq_printf(seq, "Allocated buffers:\n");
- seq_printf(seq, "ID Name Size Atributes Status Kptr DevVirt Inval? Flush?\n");
- /* 6005 012345678 123456789 CUWSNM SW filled (null) 0x40002001 n Y\n" */
- /* Then first buffer from it */
- return seq_list_start(&session->bufs, *pos);
- }
- static void *vha_buffer_dump_next(struct seq_file *seq, void *priv, loff_t *pos)
- {
- struct vha_session *session = seq->private;
- return seq_list_next(priv, &session->bufs, pos);
- }
- static void vha_buffer_dump_stop(struct seq_file *seq, void *priv)
- {
- struct vha_session *session = seq->private;
- mutex_unlock(&session->vha->lock);
- seq_printf(seq, "Attributes: Cached;Uncached;Writecombine;Secure;Nomap;Mmu\n");
- }
- static const char *BufferStatus[] = {
- "Unfilled ",
- "SW filled",
- "HW filled"
- };
- static int vha_buffer_dump_show(struct seq_file *seq, void *priv)
- {
- const struct vha_buffer *buf = list_entry(priv, struct vha_buffer, list);
- /* ID Name Size Atributes Status Kptr DevVirt Inval? Flush? */
- seq_printf(seq, "%04u %9s %9ld %c%c%c%c%c%c %s %p 0x%08llX %c %c\n",
- buf->id,
- buf->name,
- buf->size,
- (buf->attr & IMG_MEM_ATTR_CACHED)?'C':'.',
- (buf->attr & IMG_MEM_ATTR_UNCACHED)?'U':'.',
- (buf->attr & IMG_MEM_ATTR_WRITECOMBINE)?'W':'.',
- (buf->attr & IMG_MEM_ATTR_SECURE)?'S':'.',
- (buf->attr & IMG_MEM_ATTR_NOMAP)?'N':'.',
- (buf->attr & IMG_MEM_ATTR_MMU)?'M':'.',
- BufferStatus[buf->status],
- buf->kptr,
- buf->devvirt,
- (buf->inval)?'Y':'n',
- (buf->flush)?'Y':'n'
- );
- return 0;
- }
- static const struct seq_operations vha_buffer_dump_sops = {
- .start = vha_buffer_dump_start,
- .next = vha_buffer_dump_next,
- .show = vha_buffer_dump_show,
- .stop = vha_buffer_dump_stop
- };
- static int vha_buffer_dump_open(struct inode *inode, struct file *file)
- {
- struct seq_file *s;
- int err;
- err = seq_open(file, &vha_buffer_dump_sops);
- if (err)
- return err;
- s = file->private_data;
- /* i_private containt a pointer to the vha_session structure */
- s->private = inode->i_private;
- return 0;
- }
- static const struct file_operations vha_buffer_dump_fops = {
- .owner = THIS_MODULE,
- .open = vha_buffer_dump_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
- };
- static ssize_t vha_session_mem_max_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
- {
- struct vha_session *session = file->private_data;
- char mem_usage[25] = { 0 };
- size_t mem_val = 0;
- size_t size;
- img_mem_get_usage(session->mem_ctx, &mem_val, NULL);
- size = snprintf(mem_usage, sizeof(mem_usage), "%ld\n", mem_val);
- return simple_read_from_buffer(buf, count, ppos, mem_usage, size);
- }
- static const struct file_operations vha_session_mem_max_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_session_mem_max_read,
- };
- static ssize_t vha_session_mem_curr_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
- {
- struct vha_session *session = file->private_data;
- char mem_usage[25] = { 0 };
- size_t mem_val = 0;
- size_t size;
- img_mem_get_usage(session->mem_ctx, NULL, &mem_val);
- size = snprintf(mem_usage, sizeof(mem_usage), "%ld\n", mem_val);
- return simple_read_from_buffer(buf, count, ppos, mem_usage, size);
- }
- static const struct file_operations vha_session_mem_curr_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_session_mem_curr_read,
- };
- static ssize_t vha_session_mmu_max_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
- {
- struct vha_session *session = file->private_data;
- char mem_usage[25] = { 0 };
- size_t mem_val = 0;
- size_t size;
- img_mmu_get_usage(session->mem_ctx, &mem_val, NULL);
- size = snprintf(mem_usage, sizeof(mem_usage), "%ld\n", mem_val);
- return simple_read_from_buffer(buf, count, ppos, mem_usage, size);
- }
- static const struct file_operations vha_session_mmu_max_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_session_mmu_max_read,
- };
- static ssize_t vha_session_mmu_curr_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
- {
- struct vha_session *session = file->private_data;
- char mem_usage[25] = { 0 };
- size_t mem_val = 0;
- size_t size;
- img_mmu_get_usage(session->mem_ctx, NULL, &mem_val);
- size = snprintf(mem_usage, sizeof(mem_usage), "%ld\n", mem_val);
- return simple_read_from_buffer(buf, count, ppos, mem_usage, size);
- }
- static const struct file_operations vha_session_mmu_curr_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_session_mmu_curr_read,
- };
- struct dbgfs_buf_info {
- struct vha_session *session;
- struct vha_buffer *buf;
- struct dentry *dbgfs; /* file in debugfs */
- };
- /* debugfs read a buffer */
- static ssize_t dbgfs_buf_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
- {
- struct dbgfs_buf_info *info = file->private_data;
- struct vha_buffer *buf = info->buf;
- struct vha_session *session = info->session;
- int ret;
- ret = mutex_lock_interruptible(&session->vha->lock);
- if (!ret) {
- if (buf->attr & IMG_MEM_ATTR_NOMAP) {
- ret = -ENOMEM;
- dev_err(session->vha->dev, "can't read non mappable buff %x\n (%d)",
- buf->id, ret);
- goto exit;
- }
- ret = img_mem_map_km(session->mem_ctx, buf->id);
- if (ret) {
- dev_err(session->vha->dev, "failed to map buff %x to km: %d\n",
- buf->id, ret);
- ret = -ENOMEM;
- goto exit;
- }
- buf->kptr = img_mem_get_kptr(session->mem_ctx, buf->id);
- ret = simple_read_from_buffer(user_buf, count, ppos,
- buf->kptr, buf->size);
- if (ret < 0)
- dev_err(session->vha->dev, "failed to read buff %x to km: %d\n",
- buf->id, ret);
- if (img_mem_unmap_km(session->mem_ctx, buf->id))
- dev_err(session->vha->dev,
- "%s: failed to unmap buff %x from km: %d\n",
- __func__, buf->id, ret);
- exit:
- buf->kptr = NULL;
- mutex_unlock(&session->vha->lock);
- }
- return ret;
- }
- static const struct file_operations dbgfs_buf_fops = {
- .read = dbgfs_buf_read,
- .open = simple_open,
- .llseek = default_llseek,
- };
- static void dbg_add_buf(struct vha_session *session, struct vha_buffer *buf)
- {
- if (buf->name[0] && session->dbgfs) {
- char name[13] = { 0 };
- struct dbgfs_buf_info *info = kzalloc(sizeof(struct dbgfs_buf_info),
- GFP_KERNEL);
- if (!info) {
- dev_err(session->vha->dev, "%s: alloc info failed!\n", __func__);
- return;
- }
- snprintf(name, sizeof(name)-1, "%s.bin", buf->name);
- info->buf = buf;
- info->session = session;
- info->dbgfs = debugfs_create_file(name,
- S_IRUGO, session->dbgfs,
- info, &dbgfs_buf_fops);
- if (!info->dbgfs)
- dev_warn(session->vha->dev,
- "%s: failed to create debugfs entry for '%s'!\n",
- __func__, name);
- buf->dbgfs_priv = (void*)info;
- }
- }
- static void dbg_rm_buf(struct vha_session *session, uint32_t buf_id)
- {
- struct vha_buffer *buf = vha_find_bufid(session, buf_id);
- struct dbgfs_buf_info *info;
- info = (struct dbgfs_buf_info *)buf->dbgfs_priv;
- if (info) {
- /* remove debugfs directory. NULL is safe */
- debugfs_remove(info->dbgfs);
- kfree(info);
- }
- buf->dbgfs_priv = NULL;
- }
- /*
- * create buffers for CRC and DEBUG (PERF and BAND).
- * Configure the hardware to use them.
- * Buffers are mapped into device mmu on demand(when map=true)
- */
- int vha_dbg_alloc_hwbuf(struct vha_session *session, size_t size,
- struct vha_buffer **buffer,
- const char *name, bool map)
- {
- struct vha_dev *vha = session->vha;
- struct vha_buffer *buf;
- int buf_id, ret;
- uint32_t vaddr = 0;
- size_t page_size;
- if (list_empty(&session->bufs))
- img_pdump_printf("-- ALLOC_BEGIN\n");
- img_mmu_get_conf(&page_size, NULL);
- size = ALIGN(size, page_size);
- ret = img_mem_alloc(vha->dev,
- session->mem_ctx,
- vha->int_heap_id,
- size,
- IMG_MEM_ATTR_WRITECOMBINE,
- &buf_id);
- if (ret)
- return ret;
- ret = vha_add_buf(session, buf_id, size,
- name, IMG_MEM_ATTR_WRITECOMBINE);
- if (ret) {
- dev_err(vha->dev, "%s: add failed!\n", __func__);
- goto out_add_failed;
- }
- buf = vha_find_bufid(session, buf_id);
- if (buf == NULL)
- goto out_no_buf;
- if (vha->mmu_mode) {
- ret = img_mmu_vaa_alloc(session->vaa_ctx,
- buf->size, &vaddr);
- if (ret) {
- dev_err(vha->dev, "%s: vaa alloc failed!\n", __func__);
- goto out_vaa_failed;
- }
- if (map) {
- ret = img_mmu_map(
- session->mmu_ctxs[VHA_MMU_REQ_IO_CTXID].ctx,
- session->mem_ctx, buf_id,
- vaddr, 0);
- if (ret) {
- dev_err(vha->dev,
- "%s: map failed!\n",
- __func__);
- goto out_map_failed;
- }
- buf->devvirt = vaddr;
- dev_dbg(vha->dev,
- "%s: mapped buf %s (%u) to %#llx:%zu\n",
- __func__,
- buf->name, buf_id,
- buf->devvirt, buf->size);
- }
- }
- *buffer = buf;
- return 0;
- out_map_failed:
- img_mmu_vaa_free(session->vaa_ctx, buf->devvirt, buf->size);
- out_vaa_failed:
- out_no_buf:
- vha_rm_buf(session, buf->id);
- out_add_failed:
- img_mem_free(session->mem_ctx, buf_id);
- return -EFAULT;
- }
- /* create CNN_CRC and CNN_DEBUG capture into buffers */
- int vha_dbg_create_hwbufs(struct vha_session *session)
- {
- struct vha_dev *vha = session->vha;
- struct vha_dbgfs_ctx *ctx =
- (struct vha_dbgfs_ctx *)vha->dbgfs_ctx;
- int ret;
- if (vha->cnn_combined_crc_enable) {
- session->cnn_dbg.cnn_crc_size_kB = cnn_crc_size_kB ? cnn_crc_size_kB :
- VHA_DBG_CRC_BUF_SIZE;
- session->cnn_dbg.cnn_crc_mode = 1; /* stream mode */
- #ifdef HW_AX3
- session->cnn_dbg.cnn_crc_mask = 2; /* safety mode */
- #endif
- } else {
- session->cnn_dbg.cnn_crc_mode = cnn_crc_mode;
- session->cnn_dbg.cnn_crc_size_kB = cnn_crc_size_kB;
- #ifdef HW_AX3
- session->cnn_dbg.cnn_crc_mask = cnn_crc_mask;
- #endif
- }
- memcpy(session->cnn_dbg.cnn_dbg_modes, cnn_dbg_modes, sizeof(cnn_dbg_modes));
- session->cnn_dbg.cnn_dbg_size_kB = cnn_dbg_size_kB;
- session->cnn_dbg.cnn_dbg_flush = cnn_pdump_flush_dbg;
- session->cnn_dbg.cnn_dbg_pdump_enable = cnn_dbg_pdump_enable;
- if (vha->mmu_mode &&
- ((session->cnn_dbg.cnn_crc_mode > 0 && session->cnn_dbg.cnn_crc_size_kB > 0) ||
- (session->cnn_dbg.cnn_crc_size_kB > 0) || vha->cnn_combined_crc_enable)) {
- if (vaa_offset & (PAGE_SIZE-1)) {
- dev_err(vha->dev, "%s: given vaa offset is not page aligned!\n",
- __func__);
- return -EINVAL;
- }
- ret = img_mmu_vaa_create(vha->dev,
- IMG_MEM_VA_HEAP1_BASE + vaa_offset,
- IMG_MEM_VA_HEAP1_SIZE - vaa_offset,
- &session->vaa_ctx);
- if (ret) {
- dev_err(vha->dev, "%s: failed to allocate vaa heap\n",
- __func__);
- return ret;
- }
- }
- /* Create debugfs dir and populate entries */
- if (ctx->debugfs_dir) {
- char name[15] = { 0 };
- snprintf(name, sizeof(name)-1, "%s%d",
- "session",
- session->mmu_ctxs[VHA_MMU_REQ_MODEL_CTXID].id);
- session->dbgfs =
- debugfs_create_dir(name, ctx->debugfs_dir);
- if (session->dbgfs) {
- if (!debugfs_create_file("pte_dump", S_IRUGO, session->dbgfs,
- session, &vha_mmu_ptedump_fops))
- dev_warn(vha->dev,
- "%s: failed to create pte_dump!\n",
- __func__);
- if (!debugfs_create_file("mem_usage_max", S_IRUGO, session->dbgfs,
- session, &vha_session_mem_max_fops))
- dev_warn(vha->dev,
- "%s: failed to create mem_usage_max!\n",
- __func__);
- if (!debugfs_create_file("mem_usage_curr", S_IRUGO, session->dbgfs,
- session, &vha_session_mem_curr_fops))
- dev_warn(vha->dev,
- "%s: failed to create mem_usage_curr!\n",
- __func__);
- if (!debugfs_create_file("mmu_usage_max", S_IRUGO, session->dbgfs,
- session, &vha_session_mmu_max_fops))
- dev_warn(vha->dev,
- "%s: failed to create mmu_usage_max!\n",
- __func__);
- if (!debugfs_create_file("mmu_usage_curr", S_IRUGO, session->dbgfs,
- session, &vha_session_mmu_curr_fops))
- dev_warn(vha->dev,
- "%s: failed to create mmu_usage_curr!\n",
- __func__);
- if (!debugfs_create_file("buffer_dump", S_IRUGO, session->dbgfs,
- session, &vha_buffer_dump_fops))
- dev_warn(vha->dev,
- "%s: failed to create buffer_dump!\n",
- __func__);
- }
- }
- if (session->cnn_dbg.cnn_crc_mode > 0 && session->cnn_dbg.cnn_crc_size_kB > 0) {
- struct vha_buffer *buf;
- size_t size = session->cnn_dbg.cnn_crc_size_kB * 1024;
- int id;
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- char name[10] = { 0 };
- snprintf(name, sizeof(name)-1, "CRC_%u", id);
- ret = vha_dbg_alloc_hwbuf(session, size, &buf, name, true);
- if (ret) {
- dev_err(vha->dev, "%s: failed to allocate buffer for CNN_CRC\n",
- __func__);
- goto out_disable;
- }
- session->cnn_dbg.cnn_crc_buf[id] = buf;
- dbg_add_buf(session, buf);
- }
- }
- if (cnn_dbg_size_kB > 0) {
- struct vha_buffer *buf;
- size_t size = cnn_dbg_size_kB * 1024;
- int id;
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- char name[10] = { 0 };
- snprintf(name, sizeof(name)-1, "DBG_%u", id);
- ret = vha_dbg_alloc_hwbuf(session, size, &buf, name, true);
- if (ret) {
- dev_err(vha->dev, "%s: failed to allocate buffer for CNN_DEBUG\n",
- __func__);
- goto out_disable;
- }
- session->cnn_dbg.cnn_dbg_buf[id] = buf;
- dbg_add_buf(session, buf);
- }
- }
- if (vha->cnn_combined_crc_enable) {
- struct vha_buffer *buf;
- ret = vha_dbg_alloc_hwbuf(session, VHA_DBG_CONBINED_CRC_BUF_SIZE, &buf,
- "CRC_Cmb", true);
- if (ret) {
- dev_err(vha->dev, "%s: failed to allocate buffer for CRC_Cmb\n",
- __func__);
- goto out_disable;
- }
- session->cnn_dbg.cnn_combined_crc = buf;
- dbg_add_buf(session, buf);
- if (buf->kptr == NULL) {
- ret = img_mem_map_km(session->mem_ctx, buf->id);
- if (ret) {
- dev_err(session->vha->dev,
- "%s: failed to map buff %x to km: %d\n",
- __func__, buf->id, ret);
- return ret;
- }
- buf->kptr = img_mem_get_kptr(session->mem_ctx, buf->id);
- }
- }
- return 0;
- out_disable:
- vha_dbg_destroy_hwbufs(session);
- return ret;
- }
- void vha_dbg_hwbuf_cleanup(struct vha_session *session,
- struct vha_buffer *buf)
- {
- struct vha_dev *vha = session->vha;
- if (buf == NULL)
- return;
- if (vha->mmu_mode) {
- img_mmu_vaa_free(session->vaa_ctx, buf->devvirt, buf->size);
- img_mmu_unmap(session->mmu_ctxs[VHA_MMU_REQ_IO_CTXID].ctx,
- session->mem_ctx, buf->id);
- }
- dbg_rm_buf(session, buf->id);
- vha_rm_buf(session, buf->id);
- img_mem_free(session->mem_ctx, buf->id);
- }
- /* free the CRC and DEBUG buffers */
- void vha_dbg_destroy_hwbufs(struct vha_session *session)
- {
- struct vha_dev *vha = session->vha;
- if (session->cnn_dbg.cnn_combined_crc) {
- vha_dbg_hwbuf_cleanup(session, session->cnn_dbg.cnn_combined_crc);
- }
- if (session->cnn_dbg.cnn_crc_buf[0]) {
- int id;
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- struct vha_buffer *buf = session->cnn_dbg.cnn_crc_buf[id];
- vha_dbg_hwbuf_cleanup(session, buf);
- }
- }
- if (session->cnn_dbg.cnn_dbg_buf[0]) {
- int id;
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- struct vha_buffer *buf = session->cnn_dbg.cnn_dbg_buf[id];
- vha_dbg_hwbuf_cleanup(session, buf);
- }
- }
- if (vha->mmu_mode && session->vaa_ctx)
- img_mmu_vaa_destroy(session->vaa_ctx);
- /* remove debugfs directory. NULL is safe */
- debugfs_remove_recursive(session->dbgfs);
- }
- static int _show_vha_regset(struct seq_file *s, void *data)
- {
- struct vha_regset *regset = s->private;
- struct vha_dev *vha = regset->vha;
- const struct vha_reg *reg = regset->regs;
- char str[150];
- int i;
- int ret;
- ret = mutex_lock_interruptible(&vha->lock);
- if (ret)
- return ret;
- #ifndef VHA_FORCE_IO_DEBUG
- if (vha->state == VHA_STATE_OFF) {
- dev_err(vha->dev, "%s: can't access disabled device!!\n", __func__);
- mutex_unlock(&vha->lock);
- return -EIO;
- }
- #endif
- for (i = 0; i < regset->nregs; i++, reg++) {
- uint64_t val;
- if (reg->name == NULL)
- break;
- val = IOREAD64(vha->reg_base, reg->offset);
- sprintf(str, "%s(0x%04x) = 0x%016llx",
- reg->name, reg->offset, val);
- if (val & ~reg->mask)
- strcat(str, " Bogus register value detected !!!");
- strcat(str, "\n");
- seq_puts(s, str);
- }
- mutex_unlock(&vha->lock);
- return 0;
- }
- static int _open_vha_regset(struct inode *inode, struct file *file)
- {
- return single_open(file, _show_vha_regset, inode->i_private);
- }
- static const struct file_operations vha_regset_fops = {
- .open = _open_vha_regset,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- };
- /* List of predefined registers to be shown in debugfs */
- extern const struct vha_reg vha_regs[];
- static ssize_t vha_cnn_utilization_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- char utilization[20] = { 0 };
- size_t bytes = 0;
- if (count < strlen(utilization))
- return -EINVAL;
- if (*ppos)
- return 0;
- snprintf(utilization, (int)sizeof(utilization)-1, "%d.%d[%%]\n",
- vha->stats.cnn_utilization / 10,
- vha->stats.cnn_utilization % 10);
- if (copy_to_user(buf, utilization,
- strlen(utilization))) {
- dev_err(vha->dev, "%s: cnn_utilization read: copy to user failed\n",
- __func__);
- return -EFAULT;
- }
- bytes = strlen(utilization);
- *ppos = bytes;
- return bytes;
- }
- static const struct file_operations vha_cnn_utilization_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_cnn_utilization_read,
- };
- static ssize_t vha_cnn_last_cycles_read(struct file *file, char __user *buf, size_t len,
- loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- char cycles[16];
- size_t size;
- #if defined(HW_AX2)
- /* For Mirage cnn_last_cycles holds a valid value only
- * when we set WDT per segment */
- #define WDT_CTRL_MASK (3)
- #define WDT_CTRL_KICK_PASS (1)
- if ((vha->wdt_mode & WDT_CTRL_MASK) ==
- WDT_CTRL_KICK_PASS)
- size = snprintf(cycles, sizeof(cycles), "n/a\n");
- else
- #elif defined(HW_AX3) && !defined(CONFIG_HW_MULTICORE)
- /* For Aura cnn_last_cycles holds a valid value only
- * when debug mode is turned on to collect performance data per segment
- * VHA_CR_CNN_DEBUG_CTRL_STREAM */
- #define DEBUG_CTRL_STREAM (1)
- if (cnn_dbg_modes[0] != DEBUG_CTRL_STREAM)
- size = snprintf(cycles, sizeof(cycles), "n/a\n");
- else
- #endif
- size = snprintf(cycles, sizeof(cycles), "%lld\n",
- vha->stats.cnn_last_cycles);
- return simple_read_from_buffer(buf, len, ppos, cycles, size);
- }
- static const struct file_operations vha_cnn_last_cycles_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_cnn_last_cycles_read,
- };
- static ssize_t vha_bvnc_read(struct file *file, char __user *buf, size_t len,
- loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- char bvnc[4*6];
- size_t size = snprintf(bvnc, sizeof(bvnc), "%llu.%llu.%llu.%llu\n",
- core_id_quad(vha->hw_props.core_id));
- return simple_read_from_buffer(buf, len, ppos, bvnc, size);
- }
- static const struct file_operations vha_bvnc_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_bvnc_read,
- };
- static ssize_t vha_pri_q_counters_read(struct file *file, char __user *buf, size_t len,
- loff_t *ppos)
- {
- #define MAX_ENTRY_LEN 20
- struct vha_dev *vha = file->private_data;
- int ret;
- char pri_q_counters[VHA_MAX_PRIORITIES * MAX_ENTRY_LEN + 1] = "";
- char pri_q_counter[MAX_ENTRY_LEN] = "";
- char *str = pri_q_counters;
- ret = mutex_lock_interruptible(&vha->lock);
- if (!ret) {
- size_t size = 0;
- uint8_t pri;
- for (pri = 0; pri < VHA_MAX_PRIORITIES; pri++) {
- size += snprintf(pri_q_counter, MAX_ENTRY_LEN,
- "pri %u: %u\n", pri, vha->pri_q_counters[pri]);
- strncat(str, pri_q_counter, MAX_ENTRY_LEN);
- }
- mutex_unlock(&vha->lock);
- return simple_read_from_buffer(buf, len, ppos, pri_q_counters, size);
- }
- return ret;
- #undef MAX_ENTRY_LEN
- }
- static const struct file_operations vha_pri_q_counters_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_pri_q_counters_read,
- };
- /* Real Time Monitor facilities.
- * It allows to peek hw internals. Please refer to TRM */
- static ssize_t vha_rtm_read(struct file *file, char __user *buf, size_t len,
- loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- struct vha_dbgfs_ctx *ctx =
- (struct vha_dbgfs_ctx *)vha->dbgfs_ctx;
- int ret;
- char rtm[23];
- uint64_t rtm_data;
- ret = mutex_lock_interruptible(&vha->lock);
- if (!ret) {
- size_t size;
- #ifndef VHA_FORCE_IO_DEBUG
- if (vha->state == VHA_STATE_OFF) {
- dev_err(vha->dev, "%s: can't access disabled device!!\n", __func__);
- mutex_unlock(&vha->lock);
- return -EIO;
- }
- #endif
- rtm_data = vha_dbg_rtm_read(vha, ctx->rtm_ctrl);
- size = snprintf(rtm, sizeof(rtm), "%#.8llx %#.8llx\n",
- ctx->rtm_ctrl, rtm_data);
- mutex_unlock(&vha->lock);
- return simple_read_from_buffer(buf, len, ppos, rtm, size);
- }
- return ret;
- }
- static const struct file_operations vha_rtm_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_rtm_read,
- };
- /* Generic IO access facilities.
- * It allows read/write any register in the address space */
- static ssize_t vha_ioreg_read(struct file *file, char __user *buf, size_t len,
- loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- struct vha_dbgfs_ctx *ctx =
- (struct vha_dbgfs_ctx *)vha->dbgfs_ctx;
- char data[32];
- uint64_t io_data;
- size_t size;
- int ret;
- ret = mutex_lock_interruptible(&vha->lock);
- if (ret)
- return ret;
- if (ctx->ioreg_addr >= vha->reg_size) {
- dev_err(vha->dev,
- "%s: read attempt beyond reg space (%#llx >= %#llx)!\n",
- __func__, ctx->ioreg_addr, vha->reg_size);
- mutex_unlock(&vha->lock);
- return -EINVAL;
- }
- #ifndef VHA_FORCE_IO_DEBUG
- if (vha->state == VHA_STATE_OFF) {
- dev_err(vha->dev, "%s: can't access disabled device!!\n", __func__);
- mutex_unlock(&vha->lock);
- return -EIO;
- }
- #endif
- /* Read the data */
- io_data = IOREAD64(vha->reg_base, ctx->ioreg_addr);
- mutex_unlock(&vha->lock);
- size = snprintf(data, sizeof(data), "%#.8llx::%#.16llx\n",
- ctx->ioreg_addr, io_data);
- return simple_read_from_buffer(buf, len, ppos, data, size);
- }
- static ssize_t vha_ioreg_write(struct file *file, const char __user *buf,
- size_t len, loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- struct vha_dbgfs_ctx *ctx =
- (struct vha_dbgfs_ctx *)vha->dbgfs_ctx;
- uint64_t io_data;
- int ret = kstrtou64_from_user(buf, len, 16, &io_data);
- if (ret)
- return ret;
- ret = mutex_lock_interruptible(&vha->lock);
- if (ret)
- return ret;
- if (ctx->ioreg_addr >= vha->reg_size) {
- dev_err(vha->dev,
- "%s: write attempt beyond reg space (%#llx >= %#llx)!\n",
- __func__, ctx->ioreg_addr, vha->reg_size);
- mutex_unlock(&vha->lock);
- return -EINVAL;
- }
- #ifndef VHA_FORCE_IO_DEBUG
- if (vha->state == VHA_STATE_OFF) {
- dev_err(vha->dev, "%s: can't access disabled device!!\n", __func__);
- mutex_unlock(&vha->lock);
- return -EIO;
- }
- #endif
- /* Write the data */
- IOWRITE64(vha->reg_base, ctx->ioreg_addr, io_data);
- mutex_unlock(&vha->lock);
- return len;
- }
- static const struct file_operations vha_ioreg_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_ioreg_read,
- .write = vha_ioreg_write,
- };
- static ssize_t vha_stats_reset_write(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- memset(&vha->stats, 0, sizeof(struct vha_stats));
- return count;
- }
- static const struct file_operations vha_stats_reset_fops = {
- .owner = THIS_MODULE,
- .write = vha_stats_reset_write,
- .open = simple_open,
- };
- #ifdef CONFIG_HW_MULTICORE
- /* Per core scheduling stats. */
- static ssize_t vha_cnn_kicks_per_core_read(struct file *file, char __user *buf,
- size_t len, loff_t *ppos)
- {
- #define MAX_CORE_REPORT_LEN 76
- #define MAX_REPORT_LEN ((2 * VHA_NUM_CORES + 1) * MAX_CORE_REPORT_LEN)
- #define MAX_STAT_NUM 5
- struct vha_dev *vha = file->private_data;
- int ret;
- char* kicks_per = kmalloc(MAX_REPORT_LEN, GFP_KERNEL);
- if (kicks_per == NULL) {
- dev_err(vha->dev,
- "%s: failed to allocate memory for stats!\n", __func__);
- return -ENOMEM;
- }
- ret = mutex_lock_interruptible(&vha->lock);
- if (!ret) {
- char report_line[MAX_CORE_REPORT_LEN];
- char core_report_fmt[MAX_CORE_REPORT_LEN] = "core%u: %10u";
- char wm_report_fmt[MAX_CORE_REPORT_LEN] = "WM%u: %10u";
- size_t size = 0;
- uint8_t id;
- uint8_t stat_id;
- char* include_queued = "";
- char* include_cancels = "";
- char* include_aborts = "";
- uint32_t stats[MAX_STAT_NUM] = {0};
- ssize_t read_ret;
- /* Init stats message. */
- kicks_per[0] = 0;
- /* Check if queued WLs need to be included. */
- switch (vha->low_latency) {
- case VHA_LL_SW_KICK:
- include_queued = " queued";
- break;
- case VHA_LL_SELF_KICK:
- include_queued = " selfkicked";
- break;
- default:
- break;
- }
- if (strlen(include_queued) > 0) {
- strncat(core_report_fmt, " %10u", MAX_CORE_REPORT_LEN);
- strncat(wm_report_fmt, " %10u", MAX_CORE_REPORT_LEN);
- }
- /* Check if any cancels were recorded. */
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++)
- if (vha->stats.wm_stats[id].kicks_cancelled > 0) {
- include_cancels = " cancelled";
- strncat(core_report_fmt, " %10u", MAX_CORE_REPORT_LEN);
- strncat(wm_report_fmt, " %10u", MAX_CORE_REPORT_LEN);
- break;
- }
- /* Check if any aborts were recorded. */
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++)
- if (vha->stats.wm_stats[id].kicks_aborted > 0) {
- include_aborts = " aborted";
- strncat(core_report_fmt, " %10u", MAX_CORE_REPORT_LEN);
- strncat(wm_report_fmt, " %10u", MAX_CORE_REPORT_LEN);
- break;
- }
- /* Add completed WLs. */
- strncat(core_report_fmt, " %10u\n", MAX_CORE_REPORT_LEN);
- strncat(wm_report_fmt, " %10u\n", MAX_CORE_REPORT_LEN);
- /* Create report header. */
- size += snprintf(kicks_per, MAX_REPORT_LEN,
- " total%s%s%s completed\n",
- include_queued, include_cancels, include_aborts);
- /* Create core report. */
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- stat_id = 0;
- stats[stat_id] = vha->stats.core_stats[id].kicks;
- stat_id++;
- if (strlen(include_queued) > 0) {
- stats[stat_id] = vha->stats.core_stats[id].kicks_queued;
- stat_id++;
- }
- if (strlen(include_cancels) > 0) {
- stats[stat_id] = vha->stats.core_stats[id].kicks_cancelled;
- stat_id++;
- }
- if (strlen(include_aborts) > 0) {
- stats[stat_id] = vha->stats.core_stats[id].kicks_aborted;
- stat_id++;
- }
- stats[stat_id] = vha->stats.core_stats[id].kicks_completed;
- size += snprintf(report_line, MAX_CORE_REPORT_LEN,
- core_report_fmt, id,
- stats[0], stats[1], stats[2], stats[3], stats[4]);
- strncat(kicks_per, report_line, MAX_REPORT_LEN);
- }
- /* Create WM report. */
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- stat_id = 0;
- stats[stat_id] = vha->stats.wm_stats[id].kicks;
- stat_id++;
- if (strlen(include_queued) > 0) {
- stats[stat_id] = vha->stats.wm_stats[id].kicks_queued;
- stat_id++;
- }
- if (strlen(include_cancels) > 0) {
- stats[stat_id] = vha->stats.wm_stats[id].kicks_cancelled;
- stat_id++;
- }
- if (strlen(include_aborts) > 0) {
- stats[stat_id] = vha->stats.wm_stats[id].kicks_aborted;
- stat_id++;
- }
- stats[stat_id] = vha->stats.wm_stats[id].kicks_completed;
- size += snprintf(report_line, MAX_CORE_REPORT_LEN,
- wm_report_fmt, id,
- stats[0], stats[1], stats[2], stats[3], stats[4]);
- strncat(kicks_per, report_line, MAX_REPORT_LEN);
- }
- mutex_unlock(&vha->lock);
- read_ret = simple_read_from_buffer(buf, len, ppos, kicks_per, size);
- kfree(kicks_per);
- return read_ret;
- }
- #undef MAX_CORE_REPORT_LEN
- #undef MAX_REPORT_LEN
- #undef MAX_STAT_NUM
- return ret;
- }
- static const struct file_operations vha_cnn_kicks_per_core_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_cnn_kicks_per_core_read,
- };
- /* Per core utilization stats. */
- static ssize_t vha_cnn_utilization_per_core_read(struct file *file,
- char __user *buf, size_t len, loff_t *ppos)
- {
- #define MAX_CORE_REPORT_LEN 24
- #define MAX_REPORT_LEN ((2 * VHA_NUM_CORES) * MAX_CORE_REPORT_LEN)
- struct vha_dev *vha = file->private_data;
- int ret;
- char utilization_per[MAX_REPORT_LEN] = "";
- ret = mutex_lock_interruptible(&vha->lock);
- if (!ret) {
- char core_report_line[MAX_CORE_REPORT_LEN];
- size_t size = 0;
- uint8_t id;
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- size += snprintf(core_report_line, MAX_CORE_REPORT_LEN,
- "core%u: %d.%d[%%]\n",
- id,
- vha->stats.core_stats[id].utilization / 10,
- vha->stats.core_stats[id].utilization % 10);
- strcat(utilization_per, core_report_line);
- }
- for (id = 0; id < vha->hw_props.num_cnn_core_devs; id++) {
- size += snprintf(core_report_line, MAX_CORE_REPORT_LEN,
- "WM%u: %d.%d[%%]\n",
- id,
- vha->stats.wm_stats[id].utilization / 10,
- vha->stats.wm_stats[id].utilization % 10);
- strcat(utilization_per, core_report_line);
- }
- mutex_unlock(&vha->lock);
- return simple_read_from_buffer(buf, len, ppos, utilization_per, size);
- }
- #undef MAX_CORE_REPORT_LEN
- #undef MAX_REPORT_LEN
- return ret;
- }
- static const struct file_operations vha_cnn_utilization_per_core_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_cnn_utilization_per_core_read,
- };
- /* Last processed WL stats. */
- static ssize_t vha_wl_last_stats_read(struct file *file,
- char __user *buf, size_t len, loff_t *ppos)
- {
- #define MAX_WL_REPORT_LEN (16 * 30 + 11)
- struct vha_dev *vha = file->private_data;
- int ret;
- char wl_stats_txt[MAX_WL_REPORT_LEN] = "";
- ret = mutex_lock_interruptible(&vha->lock);
- if (!ret) {
- size_t size = 0;
- size = snprintf(wl_stats_txt, MAX_WL_REPORT_LEN,
- "cycles: %llu\n"
- "LOCM rd trans: %u\n"
- "LOCM wr trans: %u\n"
- "LOCM mwr trans: %u\n"
- "SOCM rd trans: %u\n"
- "SOCM wr trans: %u\n"
- "SOCM mwr trans: %u\n"
- "DDR rd trans: %u\n"
- "DDR wr trans: %u\n"
- "DDR mwr trans: %u\n"
- "LOCM read words: %u\n"
- "LOCM write words: %u\n"
- "SOCM read words: %u\n"
- "SOCM write words: %u\n"
- "DDR read words: %u\n"
- "DDR write words: %u\n",
- vha->stats.cnn_last_cycles,
- vha->stats.last_mem_stats.locm_rd_transactions,
- vha->stats.last_mem_stats.locm_wr_transactions,
- vha->stats.last_mem_stats.locm_mwr_transactions,
- vha->stats.last_mem_stats.socm_rd_transactions,
- vha->stats.last_mem_stats.socm_wr_transactions,
- vha->stats.last_mem_stats.socm_mwr_transactions,
- vha->stats.last_mem_stats.ddr_rd_transactions,
- vha->stats.last_mem_stats.ddr_wr_transactions,
- vha->stats.last_mem_stats.ddr_mwr_transactions,
- vha->stats.last_mem_stats.locm_rd_words,
- vha->stats.last_mem_stats.locm_wr_words,
- vha->stats.last_mem_stats.socm_rd_words,
- vha->stats.last_mem_stats.socm_wr_words,
- vha->stats.last_mem_stats.ddr_rd_words,
- vha->stats.last_mem_stats.ddr_wr_words);
- mutex_unlock(&vha->lock);
- return simple_read_from_buffer(buf, len, ppos, wl_stats_txt, size);
- }
- #undef MAX_WL_REPORT_LEN
- return ret;
- }
- static const struct file_operations vha_wl_last_stats_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_wl_last_stats_read,
- };
- /* Scheduling stats. */
- static ssize_t vha_scheduling_stats_read(struct file *file,
- char __user *buf, size_t len, loff_t *ppos)
- {
- #define MAX_PRI_SCHED_REPORT_LEN 40
- #define MAX_SCHED_REPORT_LEN ((VHA_MAX_PRIORITIES + 1) * 40)
- struct vha_dev *vha = file->private_data;
- int ret;
- char sched_stats_txt[MAX_SCHED_REPORT_LEN] = "";
- char sched_pri_txt[MAX_PRI_SCHED_REPORT_LEN] = "";
- uint8_t pri;
- ret = mutex_lock_interruptible(&vha->lock);
- if (!ret) {
- size_t size = 0;
- size = snprintf(sched_stats_txt, MAX_SCHED_REPORT_LEN,
- "mean time from submit to kick [ns]:\n");
- for (pri = 0; pri < VHA_MAX_PRIORITIES; pri++) {
- size += snprintf(sched_pri_txt, MAX_PRI_SCHED_REPORT_LEN,
- "priority %u: %10llu\n",
- pri, vha->stats.sched_stats.mt_submit_to_kick_ns[pri]);
- strcat(sched_stats_txt, sched_pri_txt);
- }
- mutex_unlock(&vha->lock);
- return simple_read_from_buffer(buf, len, ppos, sched_stats_txt, size);
- }
- #undef MAX_PRI_SCHED_REPORT_LEN
- #undef MAX_SCHED_REPORT_LEN
- return ret;
- }
- static const struct file_operations vha_scheduling_stats_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_scheduling_stats_read,
- };
- static ssize_t vha_sched_read(struct file *file, char __user *buf,
- size_t len, loff_t *ppos)
- {
- #define MAX_ENTRY_LEN 8
- struct vha_dev *vha = file->private_data;
- char entries[VHA_MC_SCHED_SEQ_LEN_MAX * MAX_ENTRY_LEN] = { 0 };
- char entry[MAX_ENTRY_LEN] = { 0 };
- char *str = entries;
- size_t size = 0;
- int i;
- for (i = 0; i < vha->scheduling_sequence_len; i++) {
- size += snprintf(entry, MAX_ENTRY_LEN, "0x%04x%c",
- vha->scheduling_sequence[i],
- i == vha->scheduling_sequence_len -1 ? '\n' : ',');
- str = strncat(str, entry, MAX_ENTRY_LEN);
- }
- #undef MAX_ENTRY_LEN
- return simple_read_from_buffer(buf, len, ppos, entries, size);
- }
- static ssize_t vha_sched_write(struct file *file, const char __user *buf,
- size_t len, loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- char *str, *str_aux, *s;
- int ret, i = 0;
- str = kzalloc(len, GFP_KERNEL);
- if (!str)
- return -ENOMEM;
- ret = copy_from_user(str, buf, len);
- if (ret)
- goto exit;
- str_aux = str;
- /* Expected format 0x0003, 0x010c, 0x000A ...
- * Zero value stops parsing */
- while((s = strsep(&str_aux,",")) != NULL) {
- uint16_t entry;
- ret = kstrtou16(s, 16, &entry);
- if (ret)
- goto exit;
- if (entry == 0)
- break;
- if (i < VHA_MC_SCHED_SEQ_LEN_MAX)
- vha->scheduling_sequence[i++] = entry;
- else {
- ret = -EINVAL;
- goto exit;
- }
- }
- if (!vha_dev_dbg_params_check(vha)) {
- ret = -EINVAL;
- goto exit;
- }
- vha->scheduling_sequence_len = i;
- vha->scheduling_counter = 0;
- kfree(str);
- return len;
- exit:
- vha->scheduling_sequence_len = 0;
- kfree(str);
- return ret;
- }
- static const struct file_operations vha_sched_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_sched_read,
- .write = vha_sched_write,
- };
- static ssize_t vha_stalling_read(struct file *file, char __user *buf,
- size_t len, loff_t *ppos)
- {
- #define MAX_STALLING_DATA_TXT_LEN 20
- struct vha_dev *vha = file->private_data;
- char stalling_str[MAX_STALLING_DATA_TXT_LEN] = { 0 };
- size_t size = 0;
- size = snprintf(stalling_str, MAX_STALLING_DATA_TXT_LEN, "0x%04x,0x%08x\n",
- vha->stalling_sysbus_host_stall_ratio,
- vha->stalling_membus_sys_stall_ratio);
- #undef MAX_STALLING_DATA_TXT_LEN
- return simple_read_from_buffer(buf, len, ppos, stalling_str, size);
- }
- static ssize_t vha_stalling_write(struct file *file, const char __user *buf,
- size_t len, loff_t *ppos)
- {
- struct vha_dev *vha = file->private_data;
- char *stalling_str, *stalling_str_aux, *stalling_token;
- uint32_t stalling_data = 0;
- int ret;
- stalling_str = kzalloc(len, GFP_KERNEL);
- if (!stalling_str)
- return -ENOMEM;
- ret = copy_from_user(stalling_str, buf, len);
- if (ret)
- goto exit;
- stalling_str_aux = stalling_str;
- /* Expected format 0x0000,0x00000000 */
- if ((stalling_token = strsep(&stalling_str_aux,",")) != NULL) {
- ret = kstrtou32(stalling_token, 16, &stalling_data);
- if (ret)
- goto exit;
- vha->stalling_sysbus_host_stall_ratio = stalling_data;
- }
- if ((stalling_token = strsep(&stalling_str_aux,",")) != NULL) {
- ret = kstrtou32(stalling_token, 16, &stalling_data);
- if (ret)
- goto exit;
- vha->stalling_membus_sys_stall_ratio = stalling_data;
- }
- kfree(stalling_str);
- return len;
- exit:
- vha->stalling_sysbus_host_stall_ratio = 0;
- vha->stalling_membus_sys_stall_ratio = 0;
- kfree(stalling_str);
- return ret;
- }
- static const struct file_operations vha_stalling_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = vha_stalling_read,
- .write = vha_stalling_write,
- };
- #endif
- void vha_dbg_init(struct vha_dev *vha)
- {
- struct vha_dbgfs_ctx *ctx = devm_kzalloc(vha->dev,
- sizeof(struct vha_dbgfs_ctx), GFP_KERNEL);
- if (!ctx) {
- dev_err(vha->dev,
- "%s: Out of memory when creating debugfs context!\n",
- __func__);
- return;
- }
- /* Create userspace node */
- ctx->debugfs_dir = debugfs_create_dir(vha->miscdev.name, NULL);
- if (!ctx->debugfs_dir) {
- dev_warn(vha->dev,
- "%s: Probably debugfs not enabled in this kernel!\n",
- __func__);
- return;
- }
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)
- #define VHA_DBGFS_CREATE_(_type_, _name_, _vha_dev_member_, flags, dir) \
- { \
- struct dentry *dentry; \
- debugfs_create_##_type_(_name_, \
- (flags), ctx->dir, \
- &vha->_vha_dev_member_); \
- dentry = debugfs_lookup(_name_, ctx->dir); \
- if (!dentry) { \
- dev_warn(vha->dev, \
- "%s: failed to create %s dbg file!\n", \
- __func__, _name_); \
- } else { \
- dput(dentry); \
- } \
- }
- #else
- #define VHA_DBGFS_CREATE_(_type_, _name_, _vha_dev_member_, flags, dir) \
- { \
- if (!debugfs_create_##_type_(_name_, \
- (flags), ctx->dir, \
- &vha->_vha_dev_member_)) { \
- dev_warn(vha->dev, \
- "%s: failed to create %s dbg file!\n", \
- __func__, _name_); \
- } \
- }
- #endif
- #define VHA_DBGFS_CREATE_RO(_type_, _name_, _vha_dev_member_, dir) \
- VHA_DBGFS_CREATE_(_type_, _name_, _vha_dev_member_, S_IRUGO, dir)
- #define VHA_DBGFS_CREATE_RW(_type_, _name_, _vha_dev_member_, dir) \
- VHA_DBGFS_CREATE_(_type_, _name_, _vha_dev_member_, S_IWUSR|S_IRUGO, dir)
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(5,7,0)
- #define CTX_DBGFS_CREATE_RW(_type_, _name_, _ctx_dev_member_, dir) \
- { \
- struct dentry *dentry; \
- debugfs_create_##_type_(_name_, \
- S_IWUSR|S_IRUGO, ctx->dir, \
- &ctx->_ctx_dev_member_); \
- dentry = debugfs_lookup(_name_, ctx->dir); \
- if (!dentry) { \
- dev_warn(vha->dev, \
- "%s: failed to create %s dbg file!\n", \
- __func__, _name_); \
- } else { \
- dput(dentry); \
- } \
- }
- #else
- #define CTX_DBGFS_CREATE_RW(_type_, _name_, _ctx_dev_member_, dir) \
- { \
- if (!debugfs_create_##_type_(_name_, \
- S_IWUSR|S_IRUGO, ctx->dir, \
- &ctx->_ctx_dev_member_)) { \
- dev_warn(vha->dev, \
- "%s: failed to create %s dbg file!\n", \
- __func__, _name_); \
- } \
- }
- #endif
- #define VHA_DBGFS_CREATE_FILE(_perm_, _name_, _fops_) \
- { \
- if (!debugfs_create_file(_name_, \
- _perm_, ctx->debugfs_dir, vha, \
- &vha_##_fops_##_fops)) { \
- dev_warn(vha->dev, \
- "%s: failed to create %s dbg file!\n", \
- __func__, _name_); \
- } \
- }
- #define VHA_DBGFS_CREATE_FILE_IN_DIR(_perm_, _name_, _fops_, dir) \
- { \
- if (!debugfs_create_file(_name_, \
- _perm_, ctx->dir, vha, \
- &vha_##_fops_##_fops)) { \
- dev_warn(vha->dev, \
- "%s: failed to create %s dbg file!\n", \
- __func__, _name_); \
- } \
- }
- #define CTX_DBGFS_CREATE_FILE(_perm_, _name_, _fops_) \
- { \
- if (!debugfs_create_file(_name_, \
- _perm_, ctx->debugfs_dir, &ctx->_fops_, \
- &vha_##_fops_##_fops)) { \
- dev_warn(vha->dev, \
- "%s: failed to create %s dbg file!\n", \
- __func__, _name_); \
- } \
- }
- /* and some registers for debug */
- if (vha->reg_base) {
- ctx->regset.regs = vha_regs;
- ctx->regset.nregs = vha->reg_size / sizeof(uint64_t);
- ctx->regset.vha = vha;
- CTX_DBGFS_CREATE_FILE(S_IRUGO, "regdump", regset);
- }
- VHA_DBGFS_CREATE_RO(u32, "core_freq_khz", freq_khz, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "core_state", state, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u64, "core_uptime_ms", stats.uptime_ms, debugfs_dir);
- #ifndef CONFIG_HW_MULTICORE
- VHA_DBGFS_CREATE_RO(u64, "core_last_proc_us", stats.last_proc_us, debugfs_dir);
- #endif
- VHA_DBGFS_CREATE_RO(u32, "cnn_kicks", stats.cnn_kicks, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "cnn_kicks_queued", stats.cnn_kicks_queued, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "cnn_kicks_completed", stats.cnn_kicks_completed, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "cnn_kicks_cancelled", stats.cnn_kicks_cancelled, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "cnn_kicks_aborted", stats.cnn_kicks_aborted, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u64, "cnn_total_proc_us", stats.cnn_total_proc_us, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u64, "cnn_last_proc_us", stats.cnn_last_proc_us, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u64, "cnn_avg_proc_us", stats.cnn_avg_proc_us, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u64, "cnn_last_est_proc_us", stats.cnn_last_est_proc_us, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u64, "cnn_avg_est_proc_us", stats.cnn_avg_est_proc_us, debugfs_dir);
- #ifdef CONFIG_HW_MULTICORE
- VHA_DBGFS_CREATE_RO(u8, "num_cores", hw_props.num_cnn_core_devs, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "socm_bytes", hw_props.socm_size_bytes, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "socm_core_bytes", hw_props.socm_core_size_bytes, debugfs_dir);
- #endif
- VHA_DBGFS_CREATE_RO(u32, "locm_bytes", hw_props.locm_size_bytes, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "mem_usage_last", stats.mem_usage_last, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "mmu_usage_last", stats.mmu_usage_last, debugfs_dir);
- VHA_DBGFS_CREATE_RO(u32, "total_failures", stats.total_failures, debugfs_dir);
- if (vha->hw_props.supported.rtm) {
- CTX_DBGFS_CREATE_RW(u64, "rtm_ctrl", rtm_ctrl, debugfs_dir);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "rtm_data", rtm);
- }
- CTX_DBGFS_CREATE_RW(u64, "ioreg_addr", ioreg_addr, debugfs_dir);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "ioreg_data", ioreg);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "cnn_utilization", cnn_utilization);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "cnn_last_cycles", cnn_last_cycles);
- VHA_DBGFS_CREATE_FILE(S_IWUSR, "stats_reset", stats_reset);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "BVNC", bvnc);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "pri_q_counters", pri_q_counters);
- #ifdef CONFIG_HW_MULTICORE
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "cnn_kicks_per_core", cnn_kicks_per_core);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "cnn_utilization_per_core", cnn_utilization_per_core);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "wl_last_stats", wl_last_stats);
- VHA_DBGFS_CREATE_FILE(S_IRUGO, "scheduling_stats", scheduling_stats);
- #endif
- #ifdef VHA_FUNCT_CTRL
- ctx->funct_ctrl_dir = debugfs_create_dir("FUNCT_CTRL", ctx->debugfs_dir);
- if (ctx->funct_ctrl_dir) {
- VHA_DBGFS_CREATE_RW(u32, "pm_delay", pm_delay, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(u8, "mmu_mode", mmu_mode, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(u8, "mmu_ctx_default", mmu_ctx_default, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(u32, "mmu_page_size", mmu_page_size, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(bool, "mmu_base_pf_test", mmu_base_pf_test, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(u32, "mmu_no_map_count", mmu_no_map_count, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(u8, "low_latency", low_latency, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(u32, "suspend_interval_msec", suspend_interval_msec, funct_ctrl_dir);
- VHA_DBGFS_CREATE_RW(u8, "fault_inject", fault_inject, funct_ctrl_dir);
- #ifdef CONFIG_HW_MULTICORE
- VHA_DBGFS_CREATE_FILE_IN_DIR(S_IRUGO, "scheduling_sequence", sched, funct_ctrl_dir);
- VHA_DBGFS_CREATE_FILE_IN_DIR(S_IRUGO, "stalling", stalling, funct_ctrl_dir);
- #endif
- }
- #endif
- #ifdef VHA_EVENT_INJECT
- ctx->event_inject_dir = debugfs_create_dir("EVENT_INJECT", ctx->debugfs_dir);
- if (ctx->event_inject_dir) {
- #ifdef CONFIG_HW_MULTICORE
- VHA_DBGFS_CREATE_RW(u64, "VHA_CR_CORE_EVENT", injection.vha_cr_core_event, event_inject_dir);
- VHA_DBGFS_CREATE_RW(u64, "VHA_CR_SYS_EVENT", injection.vha_cr_sys_event, event_inject_dir);
- VHA_DBGFS_CREATE_RW(u64, "VHA_CR_INTERCONNECT_EVENT", injection.vha_cr_interconnect_event, event_inject_dir);
- VHA_DBGFS_CREATE_RW(u64, "VHA_CR_WM_EVENT", injection.vha_cr_wm_event, event_inject_dir);
- VHA_DBGFS_CREATE_RW(u64, "CONF_ERR", injection.conf_err, event_inject_dir);
- VHA_DBGFS_CREATE_RW(u64, "PARITY_POLL_ERR", injection.parity_poll_err_reg, event_inject_dir);
- #else
- VHA_DBGFS_CREATE_RW(u64, "VHA_CR_EVENT", injection.vha_cr_event, event_inject_dir);
- #endif
- }
- #endif /* VHA_EVENT_INJECT */
- #undef CTX_DBGFS_CREATE_FILE
- #undef VHA_DBGFS_CREATE_FILE
- #undef VHA_DBGFS_CREATE_FILE_IN_DIR
- #undef CTX_DBGFS_CREATE
- #undef VHA_DBGFS_CREATE_RO
- #undef VHA_DBGFS_CREATE_RW
- #if defined(VHA_SCF) && defined(CONFIG_HW_MULTICORE)
- vha_sc_dbg_init(vha, ctx->debugfs_dir);
- #endif /* VHA_SCF */
- vha->dbgfs_ctx = (void *)ctx;
- }
- void vha_dbg_deinit(struct vha_dev *vha)
- {
- struct vha_dbgfs_ctx *ctx =
- (struct vha_dbgfs_ctx *)vha->dbgfs_ctx;
- #if defined(VHA_SCF) && defined(CONFIG_HW_MULTICORE)
- vha_sc_dbg_deinit(vha);
- #endif /* VHA_SCF */
- /* ctx->debugfs_dir==NULL is safe */
- debugfs_remove_recursive(ctx->debugfs_dir);
- }
- struct dentry* vha_dbg_get_sysfs(struct vha_dev *vha)
- {
- struct vha_dbgfs_ctx *ctx =
- (struct vha_dbgfs_ctx *)vha->dbgfs_ctx;
- return ctx->debugfs_dir;
- }
- #else // CONFIG_DEBUG_FS
- void vha_dbg_init(struct vha_dev *vha) {}
- void vha_dbg_deinit(struct vha_dev *vha) {}
- struct dentry* vha_dbg_get_sysfs(struct vha_dev *vha) { return NULL; }
- int vha_dbg_create_hwbufs(struct vha_session *session) { return 0; }
- void vha_dbg_destroy_hwbufs(struct vha_session *session) {}
- int vha_dbg_alloc_hwbuf(struct vha_session *session, size_t size,
- struct vha_buffer **buffer, const char *name, bool map) { return 0; }
- void vha_dbg_hwbuf_cleanup(struct vha_session *session,
- struct vha_buffer *buf) {}
- #endif // CONFIG_DEBUG_FS
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