[PATCH v4 5/5] gpu: nova-core: pass WPR metadata ownership to FmcBootArgs

[Eliot Courtney <ecourtney@nvidia.com>]

`FmcBootArgs` logically owns this, so pass ownership to it instead of
storing a reference.

Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
---
 drivers/gpu/nova-core/fsp.rs           | 4 ++--
 drivers/gpu/nova-core/gsp/hal/gh100.rs | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/nova-core/fsp.rs b/drivers/gpu/nova-core/fsp.rs
index 9add62736892..90212ecd6110 100644
--- a/drivers/gpu/nova-core/fsp.rs
+++ b/drivers/gpu/nova-core/fsp.rs
@@ -350,7 +350,7 @@ pub(crate) struct FmcBootArgs<'a> {
     fmc_boot_params: Coherent<GspFmcBootParams>,
     resume: bool,
     // Additional dependencies required to be kept alive for FMC boot.
-    _wpr_meta: &'a Coherent<GspFwWprMeta>,
+    _wpr_meta: Coherent<GspFwWprMeta>,
     _libos: &'a Coherent<[LibosMemoryRegionInitArgument]>,
 }
 
@@ -360,7 +360,7 @@ impl<'a> FmcBootArgs<'a> {
     pub(crate) fn new(
         dev: &device::Device<device::Bound>,
         chipset: Chipset,
-        wpr_meta: &'a Coherent<GspFwWprMeta>,
+        wpr_meta: Coherent<GspFwWprMeta>,
         libos: &'a Coherent<[LibosMemoryRegionInitArgument]>,
         resume: bool,
     ) -> Result<Self> {
diff --git a/drivers/gpu/nova-core/gsp/hal/gh100.rs b/drivers/gpu/nova-core/gsp/hal/gh100.rs
index be10d278f567..b16c2f6f82a0 100644
--- a/drivers/gpu/nova-core/gsp/hal/gh100.rs
+++ b/drivers/gpu/nova-core/gsp/hal/gh100.rs
@@ -156,15 +156,15 @@ fn boot(
 
         let wpr_meta =
             Coherent::init(dev, GFP_KERNEL, GspFwWprMeta::from_sizes(gsp_fw, &fb_sizes))?;
-        let args = FmcBootArgs::new(dev, chipset, &wpr_meta, &gsp.libos, false)?;
+        let args = FmcBootArgs::new(dev, chipset, wpr_meta, &gsp.libos, false)?;
 
         let unload_bundle = crate::gsp::UnloadBundle(
             KBox::new(FspUnloadBundle, GFP_KERNEL)? as KBox<dyn UnloadBundle>
         );
 
         // Wait for the GSP RISC-V core to halt in case of error. We create this guard after `args`
-        // to make sure that boot args are kept alive until halt, in case they are still being
-        // accessed.
+        // to make sure that the boot args and the WPR metadata they own are kept alive until halt,
+        // in case they are still being accessed.
         let mut unload_guard =
             ScopeGuard::new_with_data((unload_bundle, ctx), |(unload_bundle, ctx)| {
                 let _ = unload_bundle.0.run(ctx);

-- 
2.55.0