gpu: nvgpu: halize ltc isr

Bug 1507804

Change-Id: I3cca0e83dbf911c94422f8bb0b2df675a170b990
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/403213
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/ltc_gk20a.c b/drivers/gpu/nvgpu/gk20a/ltc_gk20a.c
index f5c6d7e7..c1ba2aee 100644
--- a/drivers/gpu/nvgpu/gk20a/ltc_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/ltc_gk20a.c
@@ -203,6 +203,15 @@ static void gk20a_ltc_init_fs_state(struct gk20a *g)
         g->max_ltc_count = g->ltc_count = 1;
 }
 
+void gk20a_ltc_isr(struct gk20a *g)
+{
+        u32 intr;
+
+        intr = gk20a_readl(g, ltc_ltc0_ltss_intr_r());
+        gk20a_err(dev_from_gk20a(g), "ltc: %08x\n", intr);
+        gk20a_writel(g, ltc_ltc0_ltss_intr_r(), intr);
+}
+
 void gk20a_init_ltc(struct gpu_ops *gops)
 {
         gops->ltc.determine_L2_size_bytes = gk20a_determine_L2_size_bytes;
@@ -220,4 +229,5 @@ void gk20a_init_ltc(struct gpu_ops *gops)
 #endif
         gops->ltc.elpg_flush = gk20a_mm_g_elpg_flush_locked;
         gops->ltc.init_fs_state = gk20a_ltc_init_fs_state;
+        gops->ltc.isr = gk20a_ltc_isr;
 }