From: John Hubbard <jhubb...@nvidia.com>
Otherwise, you'll never reach Riscv==true, much less GSP's INIT_DONE
message.
This is how Nouveau does it.
Signed-off-by: John Hubbard <jhubb...@nvidia.com>
---
drivers/gpu/nova-core/falcon.rs | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/nova-core/falcon.rs b/drivers/gpu/nova-core/falcon.rs
index 7fbf909cae08..05bde1f161ea 100644
--- a/drivers/gpu/nova-core/falcon.rs
+++ b/drivers/gpu/nova-core/falcon.rs
@@ -385,7 +385,11 @@ pub(crate) fn dma_reset(&self, bar: &Bar0) {
/// Wait for memory scrubbing to complete.
fn reset_wait_mem_scrubbing(&self, bar: &Bar0) -> Result {
- // TIMEOUT: memory scrubbing should complete in less than 20ms.
+ // Clear MAILBOX0 before waiting for memory scrubbing
+ regs::NV_PFALCON_FALCON_MAILBOX0::default()
+ .set_value(0)
+ .write(bar, &E::ID);
+
util::wait_on(Delta::from_millis(20), || {
if regs::NV_PFALCON_FALCON_HWCFG2::read(bar,
&E::ID).mem_scrubbing_done() {
Some(())
--
2.34.1
