gpu: nvgpu: remove dependency on linux header for sim_gk20a*

This patch removes linux dependencies from sim_gk20a.h under
gk20a/sim_gk20a.h. The following changes are made in this patch.

1) Created a linux based structure sim_gk20a_linux that contains a
common sim_gk20a struct inside it. The common struct sim_gk20a doesn't
contain any linux specific structs.
2) The common struct sim_gk20a contains an added function pointer which
is used to invoke gk20a_sim_esc_readl() method.
3) sim_gk20a.c is moved to nvgpu/common/linux along with a new header
sim_gk20a.h that contains the definition of struct sim_gk20a_linux.
4) struct gk20a now contains a pointer of sim_gk20a instead of the
entire object. The memory for this struct is allocated and  initialized during
gk20a_init_support() and freed during invocation of
gk20_remove_support().
5) We first obtain the pointer for struct sim_gk20a_linux from the
pointer of sim_gk20a using the container_of method in order to work on
the struct.

JIRA NVGPU-386

Change-Id: Ic82b8702642377f82694577a53c3ca0b9c1bb2ab
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1603073
GVS: Gerrit_Virtual_Submit
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/Makefile b/drivers/gpu/nvgpu/Makefile
index 29966d84..ef8237f3 100644
--- a/drivers/gpu/nvgpu/Makefile
+++ b/drivers/gpu/nvgpu/Makefile
@@ -48,6 +48,7 @@ nvgpu-y := \
         common/linux/sched.o \
         common/linux/channel.o \
         common/linux/ce2.o \
+        common/linux/sim_gk20a.o \
         common/mm/nvgpu_allocator.o \
         common/mm/bitmap_allocator.o \
         common/mm/buddy_allocator.o \
@@ -99,7 +100,6 @@ nvgpu-y := \
         gk20a/tsg_gk20a.o \
         gk20a/fecs_trace_gk20a.o \
         gk20a/mc_gk20a.o \
-        gk20a/sim_gk20a.o \
         gm20b/hal_gm20b.o \
         gm20b/bus_gm20b.o \
         gm20b/ltc_gm20b.o \