From 2a2c16af5f9f1ccfc93a13e820d5381e5c881e92 Mon Sep 17 00:00:00 2001 From: Terje Bergstrom Date: Wed, 18 Apr 2018 12:59:00 -0700 Subject: gpu: nvgpu: Move Linux files away from common Move all Linux source code files to drivers/gpu/nvgpu/os/linux from drivers/gpu/nvgpu/common/linux. This changes the meaning of common to be OS independent. JIRA NVGPU-598 JIRA NVGPU-601 Change-Id: Ib7f2a43d3688bb0d0b7dcc48469a6783fd988ce9 Signed-off-by: Terje Bergstrom Reviewed-on: https://git-master.nvidia.com/r/1747714 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/os/linux/debug.c | 452 +++++++++++++++++++++++++++++++++++++ 1 file changed, 452 insertions(+) create mode 100644 drivers/gpu/nvgpu/os/linux/debug.c (limited to 'drivers/gpu/nvgpu/os/linux/debug.c') diff --git a/drivers/gpu/nvgpu/os/linux/debug.c b/drivers/gpu/nvgpu/os/linux/debug.c new file mode 100644 index 00000000..8738f3e7 --- /dev/null +++ b/drivers/gpu/nvgpu/os/linux/debug.c @@ -0,0 +1,452 @@ +/* + * Copyright (C) 2017-2018 NVIDIA Corporation. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include "debug_cde.h" +#include "debug_ce.h" +#include "debug_fifo.h" +#include "debug_gr.h" +#include "debug_allocator.h" +#include "debug_kmem.h" +#include "debug_pmu.h" +#include "debug_sched.h" +#include "debug_hal.h" +#include "debug_xve.h" +#include "os_linux.h" +#include "platform_gk20a.h" + +#include "gk20a/gk20a.h" + +#include +#include +#include + +#include + +unsigned int gk20a_debug_trace_cmdbuf; + +static inline void gk20a_debug_write_printk(void *ctx, const char *str, + size_t len) +{ + pr_info("%s", str); +} + +static inline void gk20a_debug_write_to_seqfile(void *ctx, const char *str, + size_t len) +{ + seq_write((struct seq_file *)ctx, str, len); +} + +void gk20a_debug_output(struct gk20a_debug_output *o, + const char *fmt, ...) +{ + va_list args; + int len; + + va_start(args, fmt); + len = vsnprintf(o->buf, sizeof(o->buf), fmt, args); + va_end(args); + o->fn(o->ctx, o->buf, len); +} + +static int gk20a_gr_dump_regs(struct gk20a *g, + struct gk20a_debug_output *o) +{ + if (g->ops.gr.dump_gr_regs) + gr_gk20a_elpg_protected_call(g, g->ops.gr.dump_gr_regs(g, o)); + + return 0; +} + +int gk20a_gr_debug_dump(struct gk20a *g) +{ + struct gk20a_debug_output o = { + .fn = gk20a_debug_write_printk + }; + + gk20a_gr_dump_regs(g, &o); + + return 0; +} + +static int gk20a_gr_debug_show(struct seq_file *s, void *unused) +{ + struct device *dev = s->private; + struct gk20a *g = gk20a_get_platform(dev)->g; + struct gk20a_debug_output o = { + .fn = gk20a_debug_write_to_seqfile, + .ctx = s, + }; + int err; + + err = gk20a_busy(g); + if (err) { + nvgpu_err(g, "failed to power on gpu: %d", err); + return -EINVAL; + } + + gk20a_gr_dump_regs(g, &o); + + gk20a_idle(g); + + return 0; +} + +void gk20a_debug_dump(struct gk20a *g) +{ + struct gk20a_platform *platform = gk20a_get_platform(dev_from_gk20a(g)); + struct gk20a_debug_output o = { + .fn = gk20a_debug_write_printk + }; + + if (platform->dump_platform_dependencies) + platform->dump_platform_dependencies(dev_from_gk20a(g)); + + /* HAL only initialized after 1st power-on */ + if (g->ops.debug.show_dump) + g->ops.debug.show_dump(g, &o); +} + +static int gk20a_debug_show(struct seq_file *s, void *unused) +{ + struct device *dev = s->private; + struct gk20a_debug_output o = { + .fn = gk20a_debug_write_to_seqfile, + .ctx = s, + }; + struct gk20a *g; + int err; + + g = gk20a_get_platform(dev)->g; + + err = gk20a_busy(g); + if (err) { + nvgpu_err(g, "failed to power on gpu: %d", err); + return -EFAULT; + } + + /* HAL only initialized after 1st power-on */ + if (g->ops.debug.show_dump) + g->ops.debug.show_dump(g, &o); + + gk20a_idle(g); + return 0; +} + +static int gk20a_gr_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, gk20a_gr_debug_show, inode->i_private); +} + +static int gk20a_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, gk20a_debug_show, inode->i_private); +} + +static const struct file_operations gk20a_gr_debug_fops = { + .open = gk20a_gr_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static const struct file_operations gk20a_debug_fops = { + .open = gk20a_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +void gk20a_debug_show_dump(struct gk20a *g, struct gk20a_debug_output *o) +{ + g->ops.fifo.dump_pbdma_status(g, o); + g->ops.fifo.dump_eng_status(g, o); + + gk20a_debug_dump_all_channel_status_ramfc(g, o); +} + +static ssize_t disable_bigpage_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) +{ + char buf[3]; + struct gk20a *g = file->private_data; + + if (g->mm.disable_bigpage) + buf[0] = 'Y'; + else + buf[0] = 'N'; + buf[1] = '\n'; + buf[2] = 0x00; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t disable_bigpage_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) +{ + char buf[32]; + int buf_size; + bool bv; + struct gk20a *g = file->private_data; + + buf_size = min(count, (sizeof(buf)-1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + + if (strtobool(buf, &bv) == 0) { + g->mm.disable_bigpage = bv; + gk20a_init_gpu_characteristics(g); + } + + return count; +} + +static struct file_operations disable_bigpage_fops = { + .open = simple_open, + .read = disable_bigpage_read, + .write = disable_bigpage_write, +}; + +static int railgate_residency_show(struct seq_file *s, void *data) +{ + struct gk20a *g = s->private; + struct gk20a_platform *platform = dev_get_drvdata(dev_from_gk20a(g)); + unsigned long time_since_last_state_transition_ms; + unsigned long total_rail_gate_time_ms; + unsigned long total_rail_ungate_time_ms; + + if (platform->is_railgated(dev_from_gk20a(g))) { + time_since_last_state_transition_ms = + jiffies_to_msecs(jiffies - + g->pstats.last_rail_gate_complete); + total_rail_ungate_time_ms = g->pstats.total_rail_ungate_time_ms; + total_rail_gate_time_ms = + g->pstats.total_rail_gate_time_ms + + time_since_last_state_transition_ms; + } else { + time_since_last_state_transition_ms = + jiffies_to_msecs(jiffies - + g->pstats.last_rail_ungate_complete); + total_rail_gate_time_ms = g->pstats.total_rail_gate_time_ms; + total_rail_ungate_time_ms = + g->pstats.total_rail_ungate_time_ms + + time_since_last_state_transition_ms; + } + + seq_printf(s, "Time with Rails Gated: %lu ms\n" + "Time with Rails UnGated: %lu ms\n" + "Total railgating cycles: %lu\n", + total_rail_gate_time_ms, + total_rail_ungate_time_ms, + g->pstats.railgating_cycle_count - 1); + return 0; + +} + +static int railgate_residency_open(struct inode *inode, struct file *file) +{ + return single_open(file, railgate_residency_show, inode->i_private); +} + +static const struct file_operations railgate_residency_fops = { + .open = railgate_residency_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int gk20a_railgating_debugfs_init(struct gk20a *g) +{ + struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); + struct dentry *d; + + d = debugfs_create_file( + "railgate_residency", S_IRUGO|S_IWUSR, l->debugfs, g, + &railgate_residency_fops); + if (!d) + return -ENOMEM; + + return 0; +} +static ssize_t timeouts_enabled_read(struct file *file, + char __user *user_buf, size_t count, loff_t *ppos) +{ + char buf[3]; + struct gk20a *g = file->private_data; + + if (nvgpu_is_timeouts_enabled(g)) + buf[0] = 'Y'; + else + buf[0] = 'N'; + buf[1] = '\n'; + buf[2] = 0x00; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t timeouts_enabled_write(struct file *file, + const char __user *user_buf, size_t count, loff_t *ppos) +{ + char buf[3]; + int buf_size; + bool timeouts_enabled; + struct gk20a *g = file->private_data; + + buf_size = min(count, (sizeof(buf)-1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + + if (strtobool(buf, &timeouts_enabled) == 0) { + nvgpu_mutex_acquire(&g->dbg_sessions_lock); + if (timeouts_enabled == false) { + /* requesting to disable timeouts */ + if (g->timeouts_disabled_by_user == false) { + nvgpu_atomic_inc(&g->timeouts_disabled_refcount); + g->timeouts_disabled_by_user = true; + } + } else { + /* requesting to enable timeouts */ + if (g->timeouts_disabled_by_user == true) { + nvgpu_atomic_dec(&g->timeouts_disabled_refcount); + g->timeouts_disabled_by_user = false; + } + } + nvgpu_mutex_release(&g->dbg_sessions_lock); + } + + return count; +} + +static const struct file_operations timeouts_enabled_fops = { + .open = simple_open, + .read = timeouts_enabled_read, + .write = timeouts_enabled_write, +}; + +void gk20a_debug_init(struct gk20a *g, const char *debugfs_symlink) +{ + struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); + struct device *dev = dev_from_gk20a(g); + + l->debugfs = debugfs_create_dir(dev_name(dev), NULL); + if (!l->debugfs) + return; + + if (debugfs_symlink) + l->debugfs_alias = + debugfs_create_symlink(debugfs_symlink, + NULL, dev_name(dev)); + + debugfs_create_file("status", S_IRUGO, l->debugfs, + dev, &gk20a_debug_fops); + debugfs_create_file("gr_status", S_IRUGO, l->debugfs, + dev, &gk20a_gr_debug_fops); + debugfs_create_u32("trace_cmdbuf", S_IRUGO|S_IWUSR, + l->debugfs, &gk20a_debug_trace_cmdbuf); + + debugfs_create_u32("ch_wdt_timeout_ms", S_IRUGO|S_IWUSR, + l->debugfs, &g->ch_wdt_timeout_ms); + + debugfs_create_u32("disable_syncpoints", S_IRUGO, + l->debugfs, &g->disable_syncpoints); + + /* New debug logging API. */ + debugfs_create_u64("log_mask", S_IRUGO|S_IWUSR, + l->debugfs, &g->log_mask); + debugfs_create_u32("log_trace", S_IRUGO|S_IWUSR, + l->debugfs, &g->log_trace); + + l->debugfs_ltc_enabled = + debugfs_create_bool("ltc_enabled", S_IRUGO|S_IWUSR, + l->debugfs, + &g->mm.ltc_enabled_target); + + l->debugfs_gr_idle_timeout_default = + debugfs_create_u32("gr_idle_timeout_default_us", + S_IRUGO|S_IWUSR, l->debugfs, + &g->gr_idle_timeout_default); + l->debugfs_timeouts_enabled = + debugfs_create_file("timeouts_enabled", + S_IRUGO|S_IWUSR, + l->debugfs, + g, + &timeouts_enabled_fops); + + l->debugfs_disable_bigpage = + debugfs_create_file("disable_bigpage", + S_IRUGO|S_IWUSR, + l->debugfs, + g, + &disable_bigpage_fops); + + l->debugfs_timeslice_low_priority_us = + debugfs_create_u32("timeslice_low_priority_us", + S_IRUGO|S_IWUSR, + l->debugfs, + &g->timeslice_low_priority_us); + l->debugfs_timeslice_medium_priority_us = + debugfs_create_u32("timeslice_medium_priority_us", + S_IRUGO|S_IWUSR, + l->debugfs, + &g->timeslice_medium_priority_us); + l->debugfs_timeslice_high_priority_us = + debugfs_create_u32("timeslice_high_priority_us", + S_IRUGO|S_IWUSR, + l->debugfs, + &g->timeslice_high_priority_us); + l->debugfs_runlist_interleave = + debugfs_create_bool("runlist_interleave", + S_IRUGO|S_IWUSR, + l->debugfs, + &g->runlist_interleave); + l->debugfs_force_preemption_gfxp = + debugfs_create_bool("force_preemption_gfxp", S_IRUGO|S_IWUSR, + l->debugfs, + &g->gr.ctx_vars.force_preemption_gfxp); + + l->debugfs_force_preemption_cilp = + debugfs_create_bool("force_preemption_cilp", S_IRUGO|S_IWUSR, + l->debugfs, + &g->gr.ctx_vars.force_preemption_cilp); + + l->debugfs_dump_ctxsw_stats = + debugfs_create_bool("dump_ctxsw_stats_on_channel_close", + S_IRUGO|S_IWUSR, l->debugfs, + &g->gr.ctx_vars.dump_ctxsw_stats_on_channel_close); + + gr_gk20a_debugfs_init(g); + gk20a_pmu_debugfs_init(g); + gk20a_railgating_debugfs_init(g); +#ifdef CONFIG_NVGPU_SUPPORT_CDE + gk20a_cde_debugfs_init(g); +#endif + gk20a_ce_debugfs_init(g); + nvgpu_alloc_debugfs_init(g); + nvgpu_hal_debugfs_init(g); + gk20a_fifo_debugfs_init(g); + gk20a_sched_debugfs_init(g); +#ifdef CONFIG_NVGPU_TRACK_MEM_USAGE + nvgpu_kmem_debugfs_init(g); +#endif + if (g->pci_vendor_id) + nvgpu_xve_debugfs_init(g); +} + +void gk20a_debug_deinit(struct gk20a *g) +{ + struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); + + if (!l->debugfs) + return; + + gk20a_fifo_debugfs_deinit(g); + + debugfs_remove_recursive(l->debugfs); + debugfs_remove(l->debugfs_alias); +} -- cgit v1.2.2