gpu: nvgpu: Implement NVGPU_AS_IOCTL_GET_VA_REGIONS

Implement NVGPU_AS_IOCTL_GET_VA_REGIONS which returns a list of GPU VA
regions for different page sizes. This is required for the userspace
for safe fixed-address address space allocation.

Bug 1551752

Change-Id: I63ddde30935db2471bec498dae0caa870e89c1a5
Signed-off-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-on: http://git-master/r/590814
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/trace/events/gk20a.h b/include/trace/events/gk20a.h
index e94c5be6..84a525bd 100644
--- a/include/trace/events/gk20a.h
+++ b/include/trace/events/gk20a.h
@@ -237,6 +237,18 @@ TRACE_EVENT(gk20a_as_ioctl_unmap_buffer,
         TP_printk("name=%s ",  __entry->name)
 );
 
+TRACE_EVENT(gk20a_as_ioctl_get_va_regions,
+        TP_PROTO(const char *name),
+        TP_ARGS(name),
+        TP_STRUCT__entry(
+                         __field(const char *, name)
+                         ),
+        TP_fast_assign(
+                       __entry->name = name;
+                       ),
+        TP_printk("name=%s ",  __entry->name)
+);
+
 TRACE_EVENT(gk20a_mmu_fault,
             TP_PROTO(u32 fault_hi, u32 fault_lo,
                      u32 fault_info,