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gpu: host1x: Syncpoint interrupt sharding

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Support sharded syncpoint interrupts on Tegra234+. This feature
allows specifying one of eight interrupt lines for each syncpoint
to lower processing latency of syncpoint threshold
interrupts.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901114008.672433-1-cyndis@kapsi.fi
This commit is contained in:
Mikko Perttunen
2023-09-01 14:40:07 +03:00
committed by Thierry Reding
parent b7c00cdf6d
commit f017f1e9cb
3 changed files with 61 additions and 17 deletions
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drivers/gpu/host1x/dev.h
+2 -1
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@@ -124,7 +124,8 @@ struct host1x {
void __iomem *regs;
void __iomem *hv_regs; /* hypervisor region */
void __iomem *common_regs;
int syncpt_irq;
int syncpt_irqs[8];
int num_syncpt_irqs;
struct host1x_syncpt *syncpt;
struct host1x_syncpt_base *bases;
struct device *dev;