From c79112f3b1e2a428603e06486bd3cea83942c14e Mon Sep 17 00:00:00 2001 From: Deepak Nibade Date: Wed, 25 Oct 2017 01:42:03 -0700 Subject: gpu: nvgpu: initialize czf_bypass only once We right now initialize czf_bypass value in gr_gp10b_init_preemption_state() which is run at every rail ungate And that results in any user specified value through sysfs getting lost after railgate To fix this, move initialization of czf_bypass to gk20a_init_gr_setup_sw() so that it gets initialized only once Add new HAL g->ops.gr.init_czf_bypass to initialize same and define it for gp10b/gp106/vgpu-gp10b Bug 2008262 Change-Id: I80a38ef527c86e32c6d64d0626b867239db9ea51 Signed-off-by: Deepak Nibade Reviewed-on: https://git-master.nvidia.com/r/1585224 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/gk20a/gr_gk20a.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/nvgpu/gk20a/gr_gk20a.c') diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c index 6d370250..5910c7d9 100644 --- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c @@ -4838,6 +4838,9 @@ static int gk20a_init_gr_setup_sw(struct gk20a *g) gr_gk20a_load_zbc_default_table(g, gr); + if (g->ops.gr.init_czf_bypass) + g->ops.gr.init_czf_bypass(g); + nvgpu_mutex_init(&gr->ctx_mutex); nvgpu_spinlock_init(&gr->ch_tlb_lock); -- cgit v1.2.2