From abe829338c128d18fd2c7af3387a537f55abd24d Mon Sep 17 00:00:00 2001
From: Seema Khowala <seemaj@nvidia.com>
Date: Tue, 27 Feb 2018 13:53:55 -0800
Subject: gpu: nvgpu: do not alloc ctx buffers if already allocated

Bug 200393029

Change-Id: Ic2946958e34bcb9247179fcf2e8735c822155cce
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665338
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Rajkumar Kasirajan <rkasirajan@nvidia.com>
Reviewed-by: Shreshtha Sahu <ssahu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
---
 drivers/gpu/nvgpu/gk20a/gr_gk20a.c | 5 +++++
 1 file changed, 5 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 8db6b42f..7160ab6f 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
@@ -2482,6 +2482,11 @@ static int gk20a_gr_alloc_ctx_buffer(struct gk20a *g,
 {
 	int err = 0;
 
+	nvgpu_log_fn(g, " ");
+
+	if (nvgpu_mem_is_valid(&desc->mem))
+		return 0;
+
 	err = nvgpu_dma_alloc_flags_sys(g, NVGPU_DMA_NO_KERNEL_MAPPING,
 				    size, &desc->mem);
 	if (err)
-- 
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