[PATCH 07/12] drm/i915/guc: Get rid of GuC log runtime
Michał Winiarski
michal.winiarski at intel.com
Thu Mar 15 16:59:16 UTC 2018
Runtime is not a very good name. Let's also move counting relay
overflows inside relay struct.
v2: Rename things rather than remove the struct (Chris)
Signed-off-by: Michał Winiarski <michal.winiarski at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble at intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 4 +--
drivers/gpu/drm/i915/intel_guc.c | 12 +++----
drivers/gpu/drm/i915/intel_guc_log.c | 64 ++++++++++++++++++------------------
drivers/gpu/drm/i915/intel_guc_log.h | 7 ++--
4 files changed, 43 insertions(+), 44 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index ff44016eb66a..08d58a86f080 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2347,8 +2347,8 @@ static void i915_guc_log_info(struct seq_file *m,
seq_printf(m, "\tTotal flush interrupt count: %u\n",
guc->log.flush_interrupt_count);
- seq_printf(m, "\tCapture miss count: %u\n",
- guc->log.capture_miss_count);
+ seq_printf(m, "\tRelay full count: %u\n",
+ guc->log.relay.full_count);
}
static void i915_guc_client_info(struct seq_file *m,
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c
index 3af603536b1b..4ac5d0daa81f 100644
--- a/drivers/gpu/drm/i915/intel_guc.c
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -87,9 +87,9 @@ int intel_guc_init_wq(struct intel_guc *guc)
* or scheduled later on resume. This way the handling of work
* item can be kept same between system suspend & rpm suspend.
*/
- guc->log.runtime.flush_wq = alloc_ordered_workqueue("i915-guc_log",
+ guc->log.relay.flush_wq = alloc_ordered_workqueue("i915-guc_log",
WQ_HIGHPRI | WQ_FREEZABLE);
- if (!guc->log.runtime.flush_wq) {
+ if (!guc->log.relay.flush_wq) {
DRM_ERROR("Couldn't allocate workqueue for GuC log\n");
return -ENOMEM;
}
@@ -112,7 +112,7 @@ int intel_guc_init_wq(struct intel_guc *guc)
guc->preempt_wq = alloc_ordered_workqueue("i915-guc_preempt",
WQ_HIGHPRI);
if (!guc->preempt_wq) {
- destroy_workqueue(guc->log.runtime.flush_wq);
+ destroy_workqueue(guc->log.relay.flush_wq);
DRM_ERROR("Couldn't allocate workqueue for GuC "
"preemption\n");
return -ENOMEM;
@@ -130,7 +130,7 @@ void intel_guc_fini_wq(struct intel_guc *guc)
USES_GUC_SUBMISSION(dev_priv))
destroy_workqueue(guc->preempt_wq);
- destroy_workqueue(guc->log.runtime.flush_wq);
+ destroy_workqueue(guc->log.relay.flush_wq);
}
static int guc_shared_data_create(struct intel_guc *guc)
@@ -390,8 +390,8 @@ void intel_guc_to_host_event_handler(struct intel_guc *guc)
if (msg & (INTEL_GUC_RECV_MSG_FLUSH_LOG_BUFFER |
INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED)) {
- queue_work(guc->log.runtime.flush_wq,
- &guc->log.runtime.flush_work);
+ queue_work(guc->log.relay.flush_wq,
+ &guc->log.relay.flush_work);
guc->log.flush_interrupt_count++;
}
diff --git a/drivers/gpu/drm/i915/intel_guc_log.c b/drivers/gpu/drm/i915/intel_guc_log.c
index db89999a84e8..33e2164cf4c8 100644
--- a/drivers/gpu/drm/i915/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/intel_guc_log.c
@@ -171,10 +171,10 @@ static void guc_move_to_next_buf(struct intel_guc_log *log)
smp_wmb();
/* All data has been written, so now move the offset of sub buffer. */
- relay_reserve(log->runtime.relay_chan, log->vma->obj->base.size);
+ relay_reserve(log->relay.channel, log->vma->obj->base.size);
/* Switch to the next sub buffer */
- relay_flush(log->runtime.relay_chan);
+ relay_flush(log->relay.channel);
}
static void *guc_get_write_buffer(struct intel_guc_log *log)
@@ -188,7 +188,7 @@ static void *guc_get_write_buffer(struct intel_guc_log *log)
* done without using relay_reserve() along with relay_write(). So its
* better to use relay_reserve() alone.
*/
- return relay_reserve(log->runtime.relay_chan, 0);
+ return relay_reserve(log->relay.channel, 0);
}
static bool guc_check_log_buf_overflow(struct intel_guc_log *log,
@@ -239,13 +239,13 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
void *src_data, *dst_data;
bool new_overflow;
- mutex_lock(&log->runtime.lock);
+ mutex_lock(&log->relay.lock);
- if (WARN_ON(!log->runtime.buf_addr))
+ if (WARN_ON(!log->relay.buf_addr))
goto out_unlock;
/* Get the pointer to shared GuC log buffer */
- log_buf_state = src_data = log->runtime.buf_addr;
+ log_buf_state = src_data = log->relay.buf_addr;
/* Get the pointer to local buffer to store the logs */
log_buf_snapshot_state = dst_data = guc_get_write_buffer(log);
@@ -256,7 +256,7 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
* getting consumed by User at a slow rate.
*/
DRM_ERROR_RATELIMITED("no sub-buffer to capture logs\n");
- log->capture_miss_count++;
+ log->relay.full_count++;
goto out_unlock;
}
@@ -330,20 +330,20 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
guc_move_to_next_buf(log);
out_unlock:
- mutex_unlock(&log->runtime.lock);
+ mutex_unlock(&log->relay.lock);
}
static void capture_logs_work(struct work_struct *work)
{
struct intel_guc_log *log =
- container_of(work, struct intel_guc_log, runtime.flush_work);
+ container_of(work, struct intel_guc_log, relay.flush_work);
guc_log_capture_logs(log);
}
-static bool guc_log_has_runtime(struct intel_guc_log *log)
+static bool guc_log_relay_enabled(struct intel_guc_log *log)
{
- return log->runtime.buf_addr;
+ return log->relay.buf_addr != NULL;
}
static int guc_log_map(struct intel_guc_log *log)
@@ -353,7 +353,7 @@ static int guc_log_map(struct intel_guc_log *log)
void *vaddr;
int ret;
- lockdep_assert_held(&log->runtime.lock);
+ lockdep_assert_held(&log->relay.lock);
if (!log->vma)
return -ENODEV;
@@ -375,23 +375,23 @@ static int guc_log_map(struct intel_guc_log *log)
return PTR_ERR(vaddr);
}
- log->runtime.buf_addr = vaddr;
+ log->relay.buf_addr = vaddr;
return 0;
}
static void guc_log_unmap(struct intel_guc_log *log)
{
- lockdep_assert_held(&log->runtime.lock);
+ lockdep_assert_held(&log->relay.lock);
i915_gem_object_unpin_map(log->vma->obj);
- log->runtime.buf_addr = NULL;
+ log->relay.buf_addr = NULL;
}
void intel_guc_log_init_early(struct intel_guc_log *log)
{
- mutex_init(&log->runtime.lock);
- INIT_WORK(&log->runtime.flush_work, capture_logs_work);
+ mutex_init(&log->relay.lock);
+ INIT_WORK(&log->relay.flush_work, capture_logs_work);
}
static int guc_log_relay_create(struct intel_guc_log *log)
@@ -402,7 +402,7 @@ static int guc_log_relay_create(struct intel_guc_log *log)
size_t n_subbufs, subbuf_size;
int ret;
- lockdep_assert_held(&log->runtime.lock);
+ lockdep_assert_held(&log->relay.lock);
/* Keep the size of sub buffers same as shared log buffer */
subbuf_size = GUC_LOG_SIZE;
@@ -427,17 +427,17 @@ static int guc_log_relay_create(struct intel_guc_log *log)
}
GEM_BUG_ON(guc_log_relay_chan->subbuf_size < subbuf_size);
- log->runtime.relay_chan = guc_log_relay_chan;
+ log->relay.channel = guc_log_relay_chan;
return 0;
}
static void guc_log_relay_destroy(struct intel_guc_log *log)
{
- lockdep_assert_held(&log->runtime.lock);
+ lockdep_assert_held(&log->relay.lock);
- relay_close(log->runtime.relay_chan);
- log->runtime.relay_chan = NULL;
+ relay_close(log->relay.channel);
+ log->relay.channel = NULL;
}
static void guc_log_capture_logs(struct intel_guc_log *log)
@@ -557,9 +557,9 @@ int intel_guc_log_relay_open(struct intel_guc_log *log)
{
int ret;
- mutex_lock(&log->runtime.lock);
+ mutex_lock(&log->relay.lock);
- if (guc_log_has_runtime(log)) {
+ if (guc_log_relay_enabled(log)) {
ret = -EEXIST;
goto out_unlock;
}
@@ -582,7 +582,7 @@ int intel_guc_log_relay_open(struct intel_guc_log *log)
if (ret)
goto out_relay;
- mutex_unlock(&log->runtime.lock);
+ mutex_unlock(&log->relay.lock);
guc_flush_log_msg_enable(log_to_guc(log));
@@ -591,14 +591,14 @@ int intel_guc_log_relay_open(struct intel_guc_log *log)
* the flush notification. This means that we need to unconditionally
* flush on relay enabling, since GuC only notifies us once.
*/
- queue_work(log->runtime.flush_wq, &log->runtime.flush_work);
+ queue_work(log->relay.flush_wq, &log->relay.flush_work);
return 0;
out_relay:
guc_log_relay_destroy(log);
out_unlock:
- mutex_unlock(&log->runtime.lock);
+ mutex_unlock(&log->relay.lock);
return ret;
}
@@ -612,7 +612,7 @@ void intel_guc_log_relay_flush(struct intel_guc_log *log)
* Before initiating the forceful flush, wait for any pending/ongoing
* flush to complete otherwise forceful flush may not actually happen.
*/
- flush_work(&log->runtime.flush_work);
+ flush_work(&log->relay.flush_work);
intel_runtime_pm_get(i915);
guc_log_flush(guc);
@@ -625,11 +625,11 @@ void intel_guc_log_relay_flush(struct intel_guc_log *log)
void intel_guc_log_relay_close(struct intel_guc_log *log)
{
guc_flush_log_msg_disable(log_to_guc(log));
- flush_work(&log->runtime.flush_work);
+ flush_work(&log->relay.flush_work);
- mutex_lock(&log->runtime.lock);
- GEM_BUG_ON(!guc_log_has_runtime(log));
+ mutex_lock(&log->relay.lock);
+ GEM_BUG_ON(!guc_log_relay_enabled(log));
guc_log_unmap(log);
guc_log_relay_destroy(log);
- mutex_unlock(&log->runtime.lock);
+ mutex_unlock(&log->relay.lock);
}
diff --git a/drivers/gpu/drm/i915/intel_guc_log.h b/drivers/gpu/drm/i915/intel_guc_log.h
index 3cf911eef3a8..db35e548d2ed 100644
--- a/drivers/gpu/drm/i915/intel_guc_log.h
+++ b/drivers/gpu/drm/i915/intel_guc_log.h
@@ -43,16 +43,15 @@ struct intel_guc;
struct intel_guc_log {
u32 flags;
struct i915_vma *vma;
- /* The runtime stuff gets created only when GuC logging gets enabled */
struct {
void *buf_addr;
struct workqueue_struct *flush_wq;
struct work_struct flush_work;
- struct rchan *relay_chan;
+ struct rchan *channel;
struct mutex lock;
- } runtime;
+ u32 full_count;
+ } relay;
/* logging related stats */
- u32 capture_miss_count;
u32 flush_interrupt_count;
u32 prev_overflow_count[GUC_MAX_LOG_BUFFER];
u32 total_overflow_count[GUC_MAX_LOG_BUFFER];
--
2.14.3
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