gpu: nvgpu: add tsg support for vgpu

- make tsg_gk20a.c call HAL for enable/disable channels
- add preempt_tsg HAL callbacks
- add tsg bind/unbind channel HAL callbacks
- add according tsg callbacks for vgpu

Bug 1702773
JIRA VFND-1003

Change-Id: I2cba74b3ebd3920ef09219a168e6433d9574dbe8
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: http://git-master/r/1144932
(cherry picked from commit c3787de7d38651d46969348f5acae2ba86b31ec7)
Reviewed-on: http://git-master/r/1126942
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
index 8fcc7cc1..fb19db4a 100644
--- a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
@@ -410,6 +410,30 @@ static int vgpu_fifo_preempt_channel(struct gk20a *g, u32 hw_chid)
         return err;
 }
 
+static int vgpu_fifo_preempt_tsg(struct gk20a *g, u32 tsgid)
+{
+        struct gk20a_platform *platform = gk20a_get_platform(g->dev);
+        struct tegra_vgpu_cmd_msg msg;
+        struct tegra_vgpu_tsg_preempt_params *p =
+                        &msg.params.tsg_preempt;
+        int err;
+
+        gk20a_dbg_fn("");
+
+        msg.cmd = TEGRA_VGPU_CMD_TSG_PREEMPT;
+        msg.handle = platform->virt_handle;
+        p->tsg_id = tsgid;
+        err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
+        err = err ? err : msg.ret;
+
+        if (err) {
+                gk20a_err(dev_from_gk20a(g),
+                        "preempt tsg %u failed\n", tsgid);
+        }
+
+        return err;
+}
+
 static int vgpu_submit_runlist(u64 handle, u8 runlist_id, u16 *runlist,
                         u32 num_entries)
 {
@@ -680,6 +704,7 @@ void vgpu_init_fifo_ops(struct gpu_ops *gops)
         gops->fifo.free_inst = vgpu_channel_free_inst;
         gops->fifo.setup_ramfc = vgpu_channel_setup_ramfc;
         gops->fifo.preempt_channel = vgpu_fifo_preempt_channel;
+        gops->fifo.preempt_tsg = vgpu_fifo_preempt_tsg;
         gops->fifo.update_runlist = vgpu_fifo_update_runlist;
         gops->fifo.wait_engine_idle = vgpu_fifo_wait_engine_idle;
         gops->fifo.channel_set_priority = vgpu_channel_set_priority;