gpu: host1x: Add syncpoint base support
This patch adds support for hardware syncpoint bases. This creates
a simple mechanism to stall the command FIFO until an operation is
completed.
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index eb713db..f5b9b87 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -125,7 +125,9 @@
*/
#define HOST1X_SYNCPT_CLIENT_MANAGED (1 << 0)
+#define HOST1X_SYNCPT_HAS_BASE (1 << 1)
+struct host1x_syncpt_base;
struct host1x_syncpt;
struct host1x;
@@ -140,6 +142,9 @@
unsigned long flags);
void host1x_syncpt_free(struct host1x_syncpt *sp);
+struct host1x_syncpt_base *host1x_syncpt_get_base(struct host1x_syncpt *sp);
+u32 host1x_syncpt_base_id(struct host1x_syncpt_base *base);
+
/*
* host1x channel
*/