mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
synced 2025-12-24 02:22:34 +03:00
gpu: nvgpu: add separate unit for debugger
Rename gk20a/dbg_gpu_gk20a.c to common/debugger.c and make it a separate common unit Also rename gk20a/dbg_gpu_gk20a.h to include/nvgpu/debugger.h We had two different HALs for debugger - gops.debugger and gops.dbg_session_ops Combine them into one single HAL gops.debugger and remove gops.dbg_session_ops Rename all exported APIs from debugger.h to be in the form of nvgpu_*() Jira NVGPU-1013 Change-Id: I136dc7786e3b2065921eb03b99f16049212f3cd2 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1920075 Reviewed-by: Sachin Jadhav <sachinj@nvidia.com> Tested-by: Sachin Jadhav <sachinj@nvidia.com>
This commit is contained in:
Deepak Nibade
committed by
Sachin Jadhav
Sachin Jadhav
parent
625fa68d2a
commit
1b2a0833e0
319
drivers/gpu/nvgpu/common/debugger.c
Normal file
319
drivers/gpu/nvgpu/common/debugger.c
Normal file
@@ -0,0 +1,319 @@
|
||||
/*
|
||||
* Tegra GK20A GPU Debugger/Profiler Driver
|
||||
*
|
||||
* Copyright (c) 2013-2018, NVIDIA CORPORATION. All rights reserved.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <nvgpu/kmem.h>
|
||||
#include <nvgpu/log.h>
|
||||
#include <nvgpu/vm.h>
|
||||
#include <nvgpu/atomic.h>
|
||||
#include <nvgpu/mm.h>
|
||||
#include <nvgpu/bug.h>
|
||||
#include <nvgpu/io.h>
|
||||
#include <nvgpu/utils.h>
|
||||
#include <nvgpu/channel.h>
|
||||
#include <nvgpu/unit.h>
|
||||
#include <nvgpu/gk20a.h>
|
||||
#include <nvgpu/debugger.h>
|
||||
|
||||
#include "gk20a/gr_gk20a.h"
|
||||
|
||||
/*
|
||||
* API to get first channel from the list of all channels
|
||||
* bound to the debug session
|
||||
*/
|
||||
struct channel_gk20a *
|
||||
nvgpu_dbg_gpu_get_session_channel(struct dbg_session_gk20a *dbg_s)
|
||||
{
|
||||
struct dbg_session_channel_data *ch_data;
|
||||
struct channel_gk20a *ch;
|
||||
struct gk20a *g = dbg_s->g;
|
||||
|
||||
nvgpu_mutex_acquire(&dbg_s->ch_list_lock);
|
||||
if (nvgpu_list_empty(&dbg_s->ch_list)) {
|
||||
nvgpu_mutex_release(&dbg_s->ch_list_lock);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
ch_data = nvgpu_list_first_entry(&dbg_s->ch_list,
|
||||
dbg_session_channel_data,
|
||||
ch_entry);
|
||||
ch = g->fifo.channel + ch_data->chid;
|
||||
|
||||
nvgpu_mutex_release(&dbg_s->ch_list_lock);
|
||||
|
||||
return ch;
|
||||
}
|
||||
|
||||
void nvgpu_dbg_gpu_post_events(struct channel_gk20a *ch)
|
||||
{
|
||||
struct dbg_session_data *session_data;
|
||||
struct dbg_session_gk20a *dbg_s;
|
||||
struct gk20a *g = ch->g;
|
||||
|
||||
nvgpu_log(g, gpu_dbg_fn | gpu_dbg_gpu_dbg, " ");
|
||||
|
||||
/* guard against the session list being modified */
|
||||
nvgpu_mutex_acquire(&ch->dbg_s_lock);
|
||||
|
||||
nvgpu_list_for_each_entry(session_data, &ch->dbg_s_list,
|
||||
dbg_session_data, dbg_s_entry) {
|
||||
dbg_s = session_data->dbg_s;
|
||||
if (dbg_s->dbg_events.events_enabled) {
|
||||
nvgpu_log(g, gpu_dbg_gpu_dbg, "posting event on session id %d",
|
||||
dbg_s->id);
|
||||
nvgpu_log(g, gpu_dbg_gpu_dbg, "%d events pending",
|
||||
dbg_s->dbg_events.num_pending_events);
|
||||
|
||||
dbg_s->dbg_events.num_pending_events++;
|
||||
|
||||
nvgpu_dbg_session_post_event(dbg_s);
|
||||
}
|
||||
}
|
||||
|
||||
nvgpu_mutex_release(&ch->dbg_s_lock);
|
||||
}
|
||||
|
||||
bool nvgpu_dbg_gpu_broadcast_stop_trigger(struct channel_gk20a *ch)
|
||||
{
|
||||
struct dbg_session_data *session_data;
|
||||
struct dbg_session_gk20a *dbg_s;
|
||||
bool broadcast = false;
|
||||
struct gk20a *g = ch->g;
|
||||
|
||||
nvgpu_log(g, gpu_dbg_fn | gpu_dbg_gpu_dbg | gpu_dbg_intr, " ");
|
||||
|
||||
/* guard against the session list being modified */
|
||||
nvgpu_mutex_acquire(&ch->dbg_s_lock);
|
||||
|
||||
nvgpu_list_for_each_entry(session_data, &ch->dbg_s_list,
|
||||
dbg_session_data, dbg_s_entry) {
|
||||
dbg_s = session_data->dbg_s;
|
||||
if (dbg_s->broadcast_stop_trigger) {
|
||||
nvgpu_log(g, gpu_dbg_gpu_dbg | gpu_dbg_fn | gpu_dbg_intr,
|
||||
"stop trigger broadcast enabled");
|
||||
broadcast = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
nvgpu_mutex_release(&ch->dbg_s_lock);
|
||||
|
||||
return broadcast;
|
||||
}
|
||||
|
||||
int nvgpu_dbg_gpu_clear_broadcast_stop_trigger(struct channel_gk20a *ch)
|
||||
{
|
||||
struct dbg_session_data *session_data;
|
||||
struct dbg_session_gk20a *dbg_s;
|
||||
struct gk20a *g = ch->g;
|
||||
|
||||
nvgpu_log(g, gpu_dbg_fn | gpu_dbg_gpu_dbg | gpu_dbg_intr, " ");
|
||||
|
||||
/* guard against the session list being modified */
|
||||
nvgpu_mutex_acquire(&ch->dbg_s_lock);
|
||||
|
||||
nvgpu_list_for_each_entry(session_data, &ch->dbg_s_list,
|
||||
dbg_session_data, dbg_s_entry) {
|
||||
dbg_s = session_data->dbg_s;
|
||||
if (dbg_s->broadcast_stop_trigger) {
|
||||
nvgpu_log(g, gpu_dbg_gpu_dbg | gpu_dbg_fn | gpu_dbg_intr,
|
||||
"stop trigger broadcast disabled");
|
||||
dbg_s->broadcast_stop_trigger = false;
|
||||
}
|
||||
}
|
||||
|
||||
nvgpu_mutex_release(&ch->dbg_s_lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
u32 nvgpu_set_powergate_locked(struct dbg_session_gk20a *dbg_s,
|
||||
bool mode)
|
||||
{
|
||||
u32 err = 0U;
|
||||
struct gk20a *g = dbg_s->g;
|
||||
|
||||
if (dbg_s->is_pg_disabled != mode) {
|
||||
if (mode == false) {
|
||||
g->dbg_powergating_disabled_refcount--;
|
||||
}
|
||||
|
||||
/*
|
||||
* Allow powergate disable or enable only if
|
||||
* the global pg disabled refcount is zero
|
||||
*/
|
||||
if (g->dbg_powergating_disabled_refcount == 0) {
|
||||
err = g->ops.debugger.dbg_set_powergate(dbg_s,
|
||||
mode);
|
||||
}
|
||||
|
||||
if (mode) {
|
||||
g->dbg_powergating_disabled_refcount++;
|
||||
}
|
||||
|
||||
dbg_s->is_pg_disabled = mode;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
int nvgpu_dbg_set_powergate(struct dbg_session_gk20a *dbg_s, bool disable_powergate)
|
||||
{
|
||||
int err = 0;
|
||||
struct gk20a *g = dbg_s->g;
|
||||
|
||||
/* This function must be called with g->dbg_sessions_lock held */
|
||||
|
||||
nvgpu_log(g, gpu_dbg_fn|gpu_dbg_gpu_dbg, "%s powergate mode = %s",
|
||||
g->name, disable_powergate ? "disable" : "enable");
|
||||
|
||||
/*
|
||||
* Powergate mode here refers to railgate+powergate+clockgate
|
||||
* so in case slcg/blcg/elcg are disabled and railgating is enabled,
|
||||
* disable railgating and then set is_pg_disabled = true
|
||||
* Similarly re-enable railgating and not other features if they are not
|
||||
* enabled when powermode=MODE_ENABLE
|
||||
*/
|
||||
if (disable_powergate) {
|
||||
/* save off current powergate, clk state.
|
||||
* set gpu module's can_powergate = 0.
|
||||
* set gpu module's clk to max.
|
||||
* while *a* debug session is active there will be no power or
|
||||
* clocking state changes allowed from mainline code (but they
|
||||
* should be saved).
|
||||
*/
|
||||
|
||||
nvgpu_log(g, gpu_dbg_gpu_dbg | gpu_dbg_fn,
|
||||
"module busy");
|
||||
err = gk20a_busy(g);
|
||||
if (err != 0) {
|
||||
return err;
|
||||
}
|
||||
|
||||
/*do elpg disable before clock gating */
|
||||
nvgpu_pmu_pg_global_enable(g, false);
|
||||
|
||||
if (g->ops.clock_gating.slcg_gr_load_gating_prod) {
|
||||
g->ops.clock_gating.slcg_gr_load_gating_prod(g,
|
||||
false);
|
||||
}
|
||||
if (g->ops.clock_gating.slcg_perf_load_gating_prod) {
|
||||
g->ops.clock_gating.slcg_perf_load_gating_prod(g,
|
||||
false);
|
||||
}
|
||||
if (g->ops.clock_gating.slcg_ltc_load_gating_prod) {
|
||||
g->ops.clock_gating.slcg_ltc_load_gating_prod(g,
|
||||
false);
|
||||
}
|
||||
|
||||
gr_gk20a_init_cg_mode(g, BLCG_MODE, BLCG_RUN);
|
||||
gr_gk20a_init_cg_mode(g, ELCG_MODE, ELCG_RUN);
|
||||
|
||||
dbg_s->is_pg_disabled = true;
|
||||
} else {
|
||||
/* restore (can) powergate, clk state */
|
||||
/* release pending exceptions to fault/be handled as usual */
|
||||
/*TBD: ordering of these? */
|
||||
|
||||
if (g->elcg_enabled) {
|
||||
gr_gk20a_init_cg_mode(g, ELCG_MODE, ELCG_AUTO);
|
||||
}
|
||||
|
||||
if (g->blcg_enabled) {
|
||||
gr_gk20a_init_cg_mode(g, BLCG_MODE, BLCG_AUTO);
|
||||
}
|
||||
|
||||
if (g->slcg_enabled) {
|
||||
if (g->ops.clock_gating.slcg_ltc_load_gating_prod) {
|
||||
g->ops.clock_gating.slcg_ltc_load_gating_prod(g,
|
||||
g->slcg_enabled);
|
||||
}
|
||||
if (g->ops.clock_gating.slcg_perf_load_gating_prod) {
|
||||
g->ops.clock_gating.slcg_perf_load_gating_prod(g,
|
||||
g->slcg_enabled);
|
||||
}
|
||||
if (g->ops.clock_gating.slcg_gr_load_gating_prod) {
|
||||
g->ops.clock_gating.slcg_gr_load_gating_prod(g,
|
||||
g->slcg_enabled);
|
||||
}
|
||||
}
|
||||
nvgpu_pmu_pg_global_enable(g, true);
|
||||
|
||||
nvgpu_log(g, gpu_dbg_gpu_dbg | gpu_dbg_fn,
|
||||
"module idle");
|
||||
gk20a_idle(g);
|
||||
|
||||
dbg_s->is_pg_disabled = false;
|
||||
}
|
||||
|
||||
nvgpu_log(g, gpu_dbg_fn|gpu_dbg_gpu_dbg, "%s powergate mode = %s done",
|
||||
g->name, disable_powergate ? "disable" : "enable");
|
||||
return err;
|
||||
}
|
||||
|
||||
bool nvgpu_check_and_set_global_reservation(
|
||||
struct dbg_session_gk20a *dbg_s,
|
||||
struct dbg_profiler_object_data *prof_obj)
|
||||
{
|
||||
struct gk20a *g = dbg_s->g;
|
||||
|
||||
if (g->profiler_reservation_count == 0) {
|
||||
g->global_profiler_reservation_held = true;
|
||||
g->profiler_reservation_count = 1;
|
||||
dbg_s->has_profiler_reservation = true;
|
||||
prof_obj->has_reservation = true;
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
bool nvgpu_check_and_set_context_reservation(
|
||||
struct dbg_session_gk20a *dbg_s,
|
||||
struct dbg_profiler_object_data *prof_obj)
|
||||
{
|
||||
struct gk20a *g = dbg_s->g;
|
||||
|
||||
/* Assumes that we've already checked that no global reservation
|
||||
* is in effect.
|
||||
*/
|
||||
g->profiler_reservation_count++;
|
||||
dbg_s->has_profiler_reservation = true;
|
||||
prof_obj->has_reservation = true;
|
||||
return true;
|
||||
}
|
||||
|
||||
void nvgpu_release_profiler_reservation(struct dbg_session_gk20a *dbg_s,
|
||||
struct dbg_profiler_object_data *prof_obj)
|
||||
{
|
||||
struct gk20a *g = dbg_s->g;
|
||||
|
||||
g->profiler_reservation_count--;
|
||||
if (g->profiler_reservation_count < 0) {
|
||||
nvgpu_err(g, "Negative reservation count!");
|
||||
}
|
||||
dbg_s->has_profiler_reservation = false;
|
||||
prof_obj->has_reservation = false;
|
||||
if (prof_obj->ch == NULL) {
|
||||
g->global_profiler_reservation_held = false;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user