[PATCH v5 22/27] drm/amd/display: Scope all DM queued work with drm_dev_enter/exit
Andrey Grodzovsky
andrey.grodzovsky at amd.com
Wed Apr 28 15:12:02 UTC 2021
To allow completion and further block of HW accesses post device PCI
remove.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
---
.../amd/display/amdgpu_dm/amdgpu_dm_hdcp.c | 124 +++++++++++-------
.../drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c | 24 +++-
2 files changed, 98 insertions(+), 50 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index 0cdbfcd475ec..81ea5a1ea46b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -28,6 +28,7 @@
#include "amdgpu_dm.h"
#include "dm_helpers.h"
#include <drm/drm_hdcp.h>
+#include <drm/drm_drv.h>
#include "hdcp_psp.h"
/*
@@ -260,20 +261,27 @@ void hdcp_handle_cpirq(struct hdcp_workqueue *hdcp_work, unsigned int link_index
static void event_callback(struct work_struct *work)
{
struct hdcp_workqueue *hdcp_work;
+ int idx;
hdcp_work = container_of(to_delayed_work(work), struct hdcp_workqueue,
callback_dwork);
- mutex_lock(&hdcp_work->mutex);
+ if (drm_dev_enter(hdcp_work->aconnector->base.dev, &idx)) {
- cancel_delayed_work(&hdcp_work->callback_dwork);
+ mutex_lock(&hdcp_work->mutex);
- mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CALLBACK,
- &hdcp_work->output);
+ cancel_delayed_work(&hdcp_work->callback_dwork);
+
+ mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CALLBACK,
+ &hdcp_work->output);
- process_output(hdcp_work);
+ process_output(hdcp_work);
- mutex_unlock(&hdcp_work->mutex);
+ mutex_unlock(&hdcp_work->mutex);
+
+ drm_dev_exit(idx);
+
+ }
}
@@ -284,34 +292,41 @@ static void event_property_update(struct work_struct *work)
struct amdgpu_dm_connector *aconnector = hdcp_work->aconnector;
struct drm_device *dev = hdcp_work->aconnector->base.dev;
long ret;
+ int idx;
+
+ if (drm_dev_enter(dev, &idx)) {
+
+ drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+ mutex_lock(&hdcp_work->mutex);
- drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
- mutex_lock(&hdcp_work->mutex);
+ if (aconnector->base.state->commit) {
+ ret = wait_for_completion_interruptible_timeout(&aconnector->base.state->commit->hw_done, 10 * HZ);
- if (aconnector->base.state->commit) {
- ret = wait_for_completion_interruptible_timeout(&aconnector->base.state->commit->hw_done, 10 * HZ);
+ if (ret == 0) {
+ DRM_ERROR("HDCP state unknown! Setting it to DESIRED");
+ hdcp_work->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+ }
+ }
- if (ret == 0) {
- DRM_ERROR("HDCP state unknown! Setting it to DESIRED");
- hdcp_work->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+ if (hdcp_work->encryption_status != MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF) {
+ if (aconnector->base.state->hdcp_content_type == DRM_MODE_HDCP_CONTENT_TYPE0 &&
+ hdcp_work->encryption_status <= MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON)
+ drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_ENABLED);
+ else if (aconnector->base.state->hdcp_content_type == DRM_MODE_HDCP_CONTENT_TYPE1 &&
+ hdcp_work->encryption_status == MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON)
+ drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_ENABLED);
+ } else {
+ drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_DESIRED);
}
- }
- if (hdcp_work->encryption_status != MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF) {
- if (aconnector->base.state->hdcp_content_type == DRM_MODE_HDCP_CONTENT_TYPE0 &&
- hdcp_work->encryption_status <= MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON)
- drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_ENABLED);
- else if (aconnector->base.state->hdcp_content_type == DRM_MODE_HDCP_CONTENT_TYPE1 &&
- hdcp_work->encryption_status == MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON)
- drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_ENABLED);
- } else {
- drm_hdcp_update_content_protection(&aconnector->base, DRM_MODE_CONTENT_PROTECTION_DESIRED);
- }
+ mutex_unlock(&hdcp_work->mutex);
+ drm_modeset_unlock(&dev->mode_config.connection_mutex);
+
+ drm_dev_exit(idx);
- mutex_unlock(&hdcp_work->mutex);
- drm_modeset_unlock(&dev->mode_config.connection_mutex);
+ }
}
static void event_property_validate(struct work_struct *work)
@@ -320,58 +335,77 @@ static void event_property_validate(struct work_struct *work)
container_of(to_delayed_work(work), struct hdcp_workqueue, property_validate_dwork);
struct mod_hdcp_display_query query;
struct amdgpu_dm_connector *aconnector = hdcp_work->aconnector;
+ int idx;
if (!aconnector)
return;
- mutex_lock(&hdcp_work->mutex);
+ if (drm_dev_enter(hdcp_work->aconnector->base.dev, &idx)) {
- query.encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
- mod_hdcp_query_display(&hdcp_work->hdcp, aconnector->base.index, &query);
+ mutex_lock(&hdcp_work->mutex);
- if (query.encryption_status != hdcp_work->encryption_status) {
- hdcp_work->encryption_status = query.encryption_status;
- schedule_work(&hdcp_work->property_update_work);
- }
+ query.encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+ mod_hdcp_query_display(&hdcp_work->hdcp, aconnector->base.index, &query);
+
+ if (query.encryption_status != hdcp_work->encryption_status) {
+ hdcp_work->encryption_status = query.encryption_status;
+ schedule_work(&hdcp_work->property_update_work);
+ }
+
+ mutex_unlock(&hdcp_work->mutex);
- mutex_unlock(&hdcp_work->mutex);
+ drm_dev_exit(idx);
+
+ }
}
static void event_watchdog_timer(struct work_struct *work)
{
struct hdcp_workqueue *hdcp_work;
+ int idx;
hdcp_work = container_of(to_delayed_work(work),
struct hdcp_workqueue,
watchdog_timer_dwork);
- mutex_lock(&hdcp_work->mutex);
+ if (drm_dev_enter(hdcp_work->aconnector->base.dev, &idx)) {
- cancel_delayed_work(&hdcp_work->watchdog_timer_dwork);
+ mutex_lock(&hdcp_work->mutex);
- mod_hdcp_process_event(&hdcp_work->hdcp,
- MOD_HDCP_EVENT_WATCHDOG_TIMEOUT,
- &hdcp_work->output);
+ cancel_delayed_work(&hdcp_work->watchdog_timer_dwork);
- process_output(hdcp_work);
+ mod_hdcp_process_event(&hdcp_work->hdcp,
+ MOD_HDCP_EVENT_WATCHDOG_TIMEOUT,
+ &hdcp_work->output);
- mutex_unlock(&hdcp_work->mutex);
+ process_output(hdcp_work);
+
+ mutex_unlock(&hdcp_work->mutex);
+
+ drm_dev_exit(idx);
+ }
}
static void event_cpirq(struct work_struct *work)
{
struct hdcp_workqueue *hdcp_work;
+ int idx;
hdcp_work = container_of(work, struct hdcp_workqueue, cpirq_work);
- mutex_lock(&hdcp_work->mutex);
+ if (drm_dev_enter(hdcp_work->aconnector->base.dev, &idx)) {
- mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CPIRQ, &hdcp_work->output);
+ mutex_lock(&hdcp_work->mutex);
- process_output(hdcp_work);
+ mod_hdcp_process_event(&hdcp_work->hdcp, MOD_HDCP_EVENT_CPIRQ, &hdcp_work->output);
- mutex_unlock(&hdcp_work->mutex);
+ process_output(hdcp_work);
+
+ mutex_unlock(&hdcp_work->mutex);
+
+ drm_dev_exit(idx);
+ }
}
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
index e0000c180ed1..d8ee552d373e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c
@@ -30,6 +30,8 @@
#include "amdgpu_dm.h"
#include "amdgpu_dm_irq.h"
+#include <drm/drm_drv.h>
+
/**
* DOC: overview
*
@@ -115,15 +117,27 @@ static void dm_irq_work_func(struct work_struct *work)
container_of(work, struct irq_list_head, work);
struct list_head *handler_list = &irq_list_head->head;
struct amdgpu_dm_irq_handler_data *handler_data;
+ int idx;
+
+
+ handler_data = list_first_entry_or_null(handler_list, struct amdgpu_dm_irq_handler_data, list);
+
+ if (!handler_data)
+ return;
- list_for_each_entry(handler_data, handler_list, list) {
- DRM_DEBUG_KMS("DM_IRQ: work_func: for dal_src=%d\n",
+ if (drm_dev_enter(handler_data->dm->ddev, &idx)) {
+
+ list_for_each_entry(handler_data, handler_list, list) {
+ DRM_DEBUG_KMS("DM_IRQ: work_func: for dal_src=%d\n",
+ handler_data->irq_source);
+
+ DRM_DEBUG_KMS("DM_IRQ: schedule_work: for dal_src=%d\n",
handler_data->irq_source);
- DRM_DEBUG_KMS("DM_IRQ: schedule_work: for dal_src=%d\n",
- handler_data->irq_source);
+ handler_data->handler(handler_data->handler_arg);
+ }
- handler_data->handler(handler_data->handler_arg);
+ drm_dev_exit(idx);
}
/* Call a DAL subcomponent which registered for interrupt notification
--
2.25.1
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