gpu: nvgpu: vgpu: add TEGRA_VGPU_EVENT_CHANNEL_CLEANUP

RM server uses the command to notify clients to abort and clean up a
channel. Clients will set has_timedout at the same time.

Jira VQRM-3058

Change-Id: Iebd28ccdae52dd789ee93d65c4e816b83df8d891
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1679710
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 18 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h b/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h
index 3bcabadf..43a6d079 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/vgpu/tegra_vgpu.h
@@ -710,6 +710,10 @@ struct tegra_vgpu_semaphore_wakeup {
         u32 post_events;
 };
 
+struct tegra_vgpu_channel_cleanup {
+        u32 chid;
+};
+
 enum {
 
         TEGRA_VGPU_INTR_GR = 0,
@@ -727,6 +731,7 @@ enum {
         TEGRA_VGPU_EVENT_CHANNEL = 3,
         TEGRA_VGPU_EVENT_SM_ESR = 4,
         TEGRA_VGPU_EVENT_SEMAPHORE_WAKEUP = 5,
+        TEGRA_VGPU_EVENT_CHANNEL_CLEANUP = 6,
 };
 
 struct tegra_vgpu_intr_msg {
@@ -742,6 +747,7 @@ struct tegra_vgpu_intr_msg {
                 struct tegra_vgpu_channel_event_info channel_event;
                 struct tegra_vgpu_sm_esr_info sm_esr;
                 struct tegra_vgpu_semaphore_wakeup sem_wakeup;
+                struct tegra_vgpu_channel_cleanup ch_cleanup;
                 char padding[32];
         } info;
 };
diff --git a/drivers/gpu/nvgpu/vgpu/vgpu.c b/drivers/gpu/nvgpu/vgpu/vgpu.c
index 3b53474d..08556ee5 100644
--- a/drivers/gpu/nvgpu/vgpu/vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/vgpu.c
@@ -114,6 +114,14 @@ static void vgpu_handle_channel_event(struct gk20a *g,
         gk20a_tsg_event_id_post_event(tsg, info->event_id);
 }
 
+static void vgpu_channel_abort_cleanup(struct gk20a *g, u32 chid)
+{
+        struct channel_gk20a *ch = &g->fifo.channel[chid];
+
+        ch->has_timedout = true;
+        g->ops.fifo.ch_abort_clean_up(ch);
+}
+
 int vgpu_intr_thread(void *dev_id)
 {
         struct gk20a *g = dev_id;
@@ -169,6 +177,10 @@ int vgpu_intr_thread(void *dev_id)
                         g->ops.semaphore_wakeup(g,
                                         !!msg->info.sem_wakeup.post_events);
                         break;
+                case TEGRA_VGPU_EVENT_CHANNEL_CLEANUP:
+                        vgpu_channel_abort_cleanup(g,
+                                        msg->info.ch_cleanup.chid);
+                        break;
                 default:
                         nvgpu_err(g, "unknown event %u", msg->event);
                         break;