From 152eeae163e6e2115af2dd194df95217dd37b6bf Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Thu, 26 Apr 2018 16:45:07 -0700 Subject: gpu: nvgpu: vgpu: call nvgpu_init_ltc_support vgpu needs to call nvgpu_init_ltc_support to floor sweep and set ltc_count. And set gops.ltc.set_enabled to null as guest is not allowed to change ltc settings. Jira VQRM-2345 Change-Id: I83517d631aa947db4a0a4c312f0cecda9ba03973 Signed-off-by: Richard Zhao Reviewed-on: https://git-master.nvidia.com/r/1703626 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/common/ltc.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/nvgpu/common/ltc.c') diff --git a/drivers/gpu/nvgpu/common/ltc.c b/drivers/gpu/nvgpu/common/ltc.c index 024c2e49..dec4a80c 100644 --- a/drivers/gpu/nvgpu/common/ltc.c +++ b/drivers/gpu/nvgpu/common/ltc.c @@ -42,6 +42,9 @@ int nvgpu_init_ltc_support(struct gk20a *g) void nvgpu_ltc_sync_enabled(struct gk20a *g) { + if (!g->ops.ltc.set_enabled) + return; + nvgpu_spinlock_acquire(&g->ltc_enabled_lock); if (g->mm.ltc_enabled_current != g->mm.ltc_enabled_target) { g->ops.ltc.set_enabled(g, g->mm.ltc_enabled_target); -- cgit v1.2.2