- Add helper functions for above tracepoints in the drm_gem.{h,c}
files
- Given more tracepoints, a drm_trace.* file may be started
Signed-off-by: Gurchetan Singh <gurchetansingh@xxxxxxxxxxxx>
---
drivers/gpu/drm/Kconfig | 1 +
drivers/gpu/drm/drm_gem.c | 49 +++++++++++++++++++++++++++++++++++++++
include/drm/drm_gem.h | 7 ++++++
3 files changed, 57 insertions(+)
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index b91f0ce8154c..cef8545df1c9 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -15,6 +15,7 @@ menuconfig DRM
select I2C_ALGOBIT
select DMA_SHARED_BUFFER
select SYNC_FILE
+ select TRACE_GPU_MEM
# gallium uses SYS_kcmp for os_same_file_description() to de-duplicate
# device and dmabuf fd. Let's make sure that is available for our userspace.
select KCMP
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 4dcdec6487bb..24a719b79400 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -49,6 +49,8 @@
#include <drm/drm_print.h>
#include <drm/drm_vma_manager.h>
+#include <trace/events/gpu_mem.h>
+
#include "drm_internal.h"
/** @file drm_gem.c
@@ -138,6 +140,53 @@ int drm_gem_object_init(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_gem_object_init);
+/**
+ * drm_gem_trace_gpu_mem_total - emit a total memory trace event
+ * @dev: drm_device to emit trace event for
+ * @delta: size change
+ * @imported: whether the imported or total memory counter should be used
+ *
+ * Emits a `gpu_mem_total` trace event with given parameters.
+ */
+void
+drm_gem_trace_gpu_mem_total(struct drm_device *dev, s64 delta, bool imported)
+{
+ if (imported)
+ atomic64_add(delta, &dev->import_mem_total);
+ else
+ atomic64_add(delta, &dev->mem_total);
+
+ trace_gpu_mem_total(dev->primary->index, 0,
+ atomic64_read(&dev->mem_total),
+ atomic64_read(&dev->import_mem_total));
+}
+EXPORT_SYMBOL(drm_gem_trace_gpu_mem_total);
+
+/**
+ * drm_gem_trace_gpu_mem_instance - emit a per instance memory trace event
+ * @dev: drm_device associated with DRM file
+ * @file: drm_file to emit event for
+ * @delta: size change
+ * @imported: whether the imported or total memory counter should be used
+ *
+ * Emits a `gpu_mem_instance` trace event with given parameters.
+ */
+void
+drm_gem_trace_gpu_mem_instance(struct drm_device *dev, struct drm_file *file,
+ s64 delta, bool imported)
+{
+ if (imported)
+ atomic64_add(delta, &file->import_mem_instance);
+ else
+ atomic64_add(delta, &file->mem_instance);
+
+ trace_gpu_mem_total(dev->primary->index,
+ file_inode(file->filp)->i_ino,
+ atomic64_read(&file->mem_instance),
+ atomic64_read(&file->import_mem_instance));
+}
+EXPORT_SYMBOL(drm_gem_trace_gpu_mem_instance);
+
/**
* drm_gem_private_object_init - initialize an allocated private GEM object
* @dev: drm_device the object should be initialized for
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 35e7f44c2a75..d61937cce222 100644
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -342,6 +342,13 @@ struct drm_gem_object {
void drm_gem_object_release(struct drm_gem_object *obj);
void drm_gem_object_free(struct kref *kref);
+
+void drm_gem_trace_gpu_mem_total(struct drm_device *dev, s64 delta,
+ bool imported);
+void drm_gem_trace_gpu_mem_instance(struct drm_device *dev,
+ struct drm_file *file,
+ s64 delta, bool imported);
+
int drm_gem_object_init(struct drm_device *dev,
struct drm_gem_object *obj, size_t size);
void drm_gem_private_object_init(struct drm_device *dev,
--
2.25.1
