gpu: nvgpu: Wait for CBC op to finish for all LTCs

We broadcast CBC operation to all LTCs, but we wait for only one
to finish.

Bug 1507804

Change-Id: Ib10aa5fe3a34b31862b2d5162c77441f7444a7ba
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/428123

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/ltc_gm20b.c b/drivers/gpu/nvgpu/gm20b/ltc_gm20b.c
index 7a2bb5fd..b9c3b32d 100644
--- a/drivers/gpu/nvgpu/gm20b/ltc_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/ltc_gm20b.c
@@ -103,7 +103,7 @@ static int gm20b_ltc_cbc_ctrl(struct gk20a *g, enum gk20a_cbc_op op,
 {
         int err = 0;
         struct gr_gk20a *gr = &g->gr;
-        u32 fbp, slice, ctrl1, val, hw_op = 0;
+        u32 ltc, slice, ctrl1, val, hw_op = 0;
         unsigned long end_jiffies = jiffies +
                 msecs_to_jiffies(gk20a_get_gr_idle_timeout(g));
         u32 delay = GR_IDLE_CHECK_DEFAULT;
@@ -133,13 +133,13 @@ static int gm20b_ltc_cbc_ctrl(struct gk20a *g, enum gk20a_cbc_op op,
         gk20a_writel(g, ltc_ltcs_ltss_cbc_ctrl1_r(),
                      gk20a_readl(g, ltc_ltcs_ltss_cbc_ctrl1_r()) || hw_op);
 
-        for (fbp = 0; fbp < gr->num_fbps; fbp++) {
+        for (ltc = 0; ltc < g->ltc_count; ltc++) {
                 for (slice = 0; slice < slices_per_ltc; slice++) {
 
                         delay = GR_IDLE_CHECK_DEFAULT;
 
                         ctrl1 = ltc_ltc0_lts0_cbc_ctrl1_r() +
-                                fbp * proj_ltc_stride_v() +
+                                ltc * proj_ltc_stride_v() +
                                 slice * proj_lts_stride_v();
 
                         do {