From 50a1cc069a6b28757de1af1617c0f9f037b60c6a Mon Sep 17 00:00:00 2001 From: Mahantesh Kumbar Date: Wed, 20 Sep 2017 23:38:03 +0530 Subject: gpu: nvgpu: memory unlock HAL support - Created "mem_unlock" HAL under fb to support memory unlock - Called as part of gk20a_finalize_poweron() if memory unlock support needed by checking HAL - Assigned "mem_unlock" HAL to NULL for chips which don't need memory unlocks. Change-Id: I68d0910f15d293feaacfcbf6bd17ecccd3b5219d Signed-off-by: Mahantesh Kumbar (cherry picked from commit 586894eb84860bbbe4c75dae4715bdf27432a480) Reviewed-on: https://git-master.nvidia.com/r/1564703 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/gk20a/gk20a.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpu/nvgpu/gk20a/gk20a.c') diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c index d203a335..2d09c0bb 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/gk20a.c @@ -192,6 +192,14 @@ int gk20a_finalize_poweron(struct gk20a *g) } } + if (g->ops.fb.mem_unlock) { + err = g->ops.fb.mem_unlock(g); + if (err) { + nvgpu_err(g, "failed to unlock memory"); + goto done; + } + } + err = g->ops.fifo.reset_enable_hw(g); if (err) { -- cgit v1.2.2