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path: root/drivers/gpu/nova-core/falcon/gsp.rs
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Diffstat (limited to 'drivers/gpu/nova-core/falcon/gsp.rs')
-rw-r--r--drivers/gpu/nova-core/falcon/gsp.rs24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/nova-core/falcon/gsp.rs b/drivers/gpu/nova-core/falcon/gsp.rs
new file mode 100644
index 000000000000..d622e9a64470
--- /dev/null
+++ b/drivers/gpu/nova-core/falcon/gsp.rs
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use crate::{
+ driver::Bar0,
+ falcon::{Falcon, FalconEngine},
+ regs,
+};
+
+/// Type specifying the `Gsp` falcon engine. Cannot be instantiated.
+pub(crate) struct Gsp(());
+
+impl FalconEngine for Gsp {
+ const BASE: usize = 0x00110000;
+}
+
+impl Falcon<Gsp> {
+ /// Clears the SWGEN0 bit in the Falcon's IRQ status clear register to
+ /// allow GSP to signal CPU for processing new messages in message queue.
+ pub(crate) fn clear_swgen0_intr(&self, bar: &Bar0) {
+ regs::NV_PFALCON_FALCON_IRQSCLR::default()
+ .set_swgen0(true)
+ .write(bar, Gsp::BASE);
+ }
+}