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gpu: nvgpu: Do not enable lbreq interrupt

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Lbreq interrupt can assert when there is memory back pressure. Do not
enable it as either stalling or nonstalling interrupt.

Bug 1498688

Change-Id: I02f94a64ab9df82402d80a632450d87457644d50
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/408040
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
This commit is contained in:
Terje Bergstrom
2014-05-09 20:15:51 +03:00
committed by Dan Willemsen
parent 3cebc5758a
commit 9a6cc07c55
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
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@@ -398,9 +398,10 @@ int gk20a_init_fifo_reset_enable_hw(struct gk20a *g)
gk20a_writel(g, pbdma_intr_stall_r(i), intr_stall);
gk20a_writel(g, pbdma_intr_0_r(i), 0xFFFFFFFF);
gk20a_writel(g, pbdma_intr_en_0_r(i),
(~0) & ~pbdma_intr_en_0_lbreq_enabled_f());
~pbdma_intr_en_0_lbreq_enabled_f());
gk20a_writel(g, pbdma_intr_1_r(i), 0xFFFFFFFF);
gk20a_writel(g, pbdma_intr_en_1_r(i), 0xFFFFFFFF);
gk20a_writel(g, pbdma_intr_en_1_r(i),
~pbdma_intr_en_0_lbreq_enabled_f());
}
/* TBD: apply overrides */