gpu: nvgpu: Add a bootstrap vidmem allocator

Add an allocator for allocating vidmem before the CE has had a
chance to be initialized (and clear the rest of vidmem).

Jira DNVGPU-84

Change-Id: I5166607a712b3a6eb4c2906b8c7d002c68a6567b
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1197204
(cherry picked from commit b4e68e84eedd952637b2332d8dc73a9090d6d62e)
Reviewed-on: http://git-master/r/1210949
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 60f653e0..e4d7d741 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -51,6 +51,8 @@ enum gk20a_aperture {
         APERTURE_VIDMEM
 };
 
+#define NVGPU_VIDMEM_BOOTSTRAP_ALLOCATOR_BASE   0x18000000
+
 static inline const char *gk20a_aperture_str(enum gk20a_aperture aperture)
 {
         switch (aperture) {
@@ -404,7 +406,9 @@ struct mm_gk20a {
         struct {
                 size_t size;
                 struct gk20a_allocator allocator;
+                struct gk20a_allocator bootstrap_allocator;
                 u32 ce_ctx_id;
+                bool cleared;
         } vidmem;
 };