From c3f52220f276504dea5615cc78750ddc9f468389 Mon Sep 17 00:00:00 2001 From: Mikko Perttunen Date: Thu, 28 Sep 2017 15:50:39 +0300 Subject: gpu: host1x: Enable Tegra186 syncpoint protection Since Tegra186 the Host1x hardware allows syncpoints to be assigned to specific channels, preventing any other channels from incrementing them. Enable this feature where available and assign syncpoints to channels when submitting a job. Syncpoints are currently never unassigned from channels since that would require extra work and is unnecessary with the current channel allocation model. Signed-off-by: Mikko Perttunen Reviewed-by: Dmitry Osipenko Signed-off-by: Thierry Reding --- drivers/gpu/host1x/dev.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/gpu/host1x/dev.h') diff --git a/drivers/gpu/host1x/dev.h b/drivers/gpu/host1x/dev.h index def802c0a6bf..502769726480 100644 --- a/drivers/gpu/host1x/dev.h +++ b/drivers/gpu/host1x/dev.h @@ -79,6 +79,9 @@ struct host1x_syncpt_ops { u32 (*load)(struct host1x_syncpt *syncpt); int (*cpu_incr)(struct host1x_syncpt *syncpt); int (*patch_wait)(struct host1x_syncpt *syncpt, void *patch_addr); + void (*assign_to_channel)(struct host1x_syncpt *syncpt, + struct host1x_channel *channel); + void (*enable_protection)(struct host1x *host); }; struct host1x_intr_ops { @@ -186,6 +189,18 @@ static inline int host1x_hw_syncpt_patch_wait(struct host1x *host, return host->syncpt_op->patch_wait(sp, patch_addr); } +static inline void host1x_hw_syncpt_assign_to_channel( + struct host1x *host, struct host1x_syncpt *sp, + struct host1x_channel *ch) +{ + return host->syncpt_op->assign_to_channel(sp, ch); +} + +static inline void host1x_hw_syncpt_enable_protection(struct host1x *host) +{ + return host->syncpt_op->enable_protection(host); +} + static inline int host1x_hw_intr_init_host_sync(struct host1x *host, u32 cpm, void (*syncpt_thresh_work)(struct work_struct *)) { -- cgit v1.2.3