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gpu: nvgpu: Increase PBDMA timeout

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PBDMA timeout can cause stale data in FIFO. Default value equals 1ms.
Increase it to max.

Bug 1537636

Change-Id: I1c6c6b10abaece3a64b77b9b3ef77ff726ff67cf
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/457047
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Allen Chang <allchang@nvidia.com>
Tested-by: Allen Chang <allchang@nvidia.com>
This commit is contained in:
Terje Bergstrom
2014-08-15 10:44:51 +03:00
committed by Dan Willemsen
parent 62e80a189c
commit 92c9a2d06e
2 changed files with 23 additions and 0 deletions
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7
drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
View File

@@ -423,6 +423,13 @@ int gk20a_init_fifo_reset_enable_hw(struct gk20a *g)
fifo_fb_timeout_period_max_f());
gk20a_writel(g, fifo_fb_timeout_r(), timeout);
for (i = 0; i < pbdma_timeout__size_1_v(); i++) {
timeout = gk20a_readl(g, pbdma_timeout_r(i));
timeout = set_field(timeout, pbdma_timeout_period_m(),
pbdma_timeout_period_max_f());
gk20a_writel(g, pbdma_timeout_r(i), timeout);
}
if (tegra_platform_is_silicon()) {
timeout = gk20a_readl(g, fifo_pb_timeout_r());
timeout &= ~fifo_pb_timeout_detection_enabled_f();

16
drivers/gpu/nvgpu/gk20a/hw_pbdma_gk20a.h
View File

@@ -106,6 +106,22 @@ static inline u32 pbdma_gp_put_r(u32 i)
{
return 0x00040000 + i*8192;
}
static inline u32 pbdma_timeout_r(u32 i)
{
return 0x0004012c + i*8192;
}
static inline u32 pbdma_timeout__size_1_v(void)
{
return 0x00000001;
}
static inline u32 pbdma_timeout_period_m(void)
{
return 0xffffffff << 0;
}
static inline u32 pbdma_timeout_period_max_f(void)
{
return 0xffffffff;
}
static inline u32 pbdma_pb_fetch_r(u32 i)
{
return 0x00040054 + i*8192;