gpu: nvgpu: Reorg bus HAL initialization

Reorganize HAL initialization to remove inheritance and construct
the gpu_ops struct at compile time. This patch only covers the bus
sub-module of the gpu_ops struct.

Perform HAL function assignments in hal_gxxxx.c through the
population of a chip-specific copy of gpu_ops.

Jira NVGPU-74

Change-Id: If03303c34d91480d41fc29e66069efd43e970d75
Signed-off-by: Sunny He <suhe@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1514660
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/hal_gp10b.c b/drivers/gpu/nvgpu/gp10b/hal_gp10b.c
index e526af4c..fab1c238 100644
--- a/drivers/gpu/nvgpu/gp10b/hal_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/hal_gp10b.c
@@ -50,6 +50,7 @@
 #include <nvgpu/debug.h>
 #include <nvgpu/bug.h>
 #include <nvgpu/enabled.h>
+#include <nvgpu/bus.h>
 
 #include <nvgpu/hw/gp10b/hw_proj_gp10b.h>
 #include <nvgpu/hw/gp10b/hw_fuse_gp10b.h>
@@ -245,6 +246,13 @@ static const struct gpu_ops gp10b_ops = {
                 .need_scatter_buffer = gp10b_need_scatter_buffer,
                 .populate_scatter_buffer = gp10b_populate_scatter_buffer,
         },
+        .bus = {
+                .init_hw = gk20a_bus_init_hw,
+                .isr = gk20a_bus_isr,
+                .read_ptimer = gk20a_read_ptimer,
+                .get_timestamps_zipper = nvgpu_get_timestamps_zipper,
+                .bar1_bind = gk20a_bus_bar1_bind,
+        },
 #if defined(CONFIG_GK20A_CYCLE_STATS)
         .css = {
                 .enable_snapshot = css_hw_enable_snapshot,
@@ -274,6 +282,7 @@ int gp10b_init_hal(struct gk20a *g)
         gops->debug = gp10b_ops.debug;
         gops->dbg_session_ops = gp10b_ops.dbg_session_ops;
         gops->cde = gp10b_ops.cde;
+        gops->bus = gp10b_ops.bus;
 #if defined(CONFIG_GK20A_CYCLE_STATS)
         gops->css = gp10b_ops.css;
 #endif
@@ -321,8 +330,8 @@ int gp10b_init_hal(struct gk20a *g)
                 }
         }
 #endif
+
         g->bootstrap_owner = LSF_BOOTSTRAP_OWNER_DEFAULT;
-        gk20a_init_bus(gops);
         gp10b_init_priv_ring(gops);
         gp10b_init_gr(gops);
         gp10b_init_fecs_trace_ops(gops);