[PATCH v4 3/5] gpu: nova-core: return non-WPR heap size as u64 from HALs

[Eliot Courtney]

This is always immediately widened to u64, so just return it as a u64
from the beginning.

Signed-off-by: Eliot Courtney <ecourtney@xxxxxxxxxx>
---
 drivers/gpu/nova-core/fb.rs           | 2 +-
 drivers/gpu/nova-core/fb/hal.rs       | 2 +-
 drivers/gpu/nova-core/fb/hal/ga100.rs | 2 +-
 drivers/gpu/nova-core/fb/hal/ga102.rs | 2 +-
 drivers/gpu/nova-core/fb/hal/gb100.rs | 4 ++--
 drivers/gpu/nova-core/fb/hal/gb202.rs | 4 ++--
 drivers/gpu/nova-core/fb/hal/gh100.rs | 4 ++--
 drivers/gpu/nova-core/fb/hal/tu102.rs | 6 +++---
 8 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/nova-core/fb.rs b/drivers/gpu/nova-core/fb.rs
index 4a1be29cf5fb..86d2bdaab7f9 100644
--- a/drivers/gpu/nova-core/fb.rs
+++ b/drivers/gpu/nova-core/fb.rs
@@ -271,7 +271,7 @@ pub(crate) fn new(
         };
 
         let non_wpr_heap = {
-            let non_wpr_heap_size = u64::from(hal.non_wpr_heap_size());
+            let non_wpr_heap_size = hal.non_wpr_heap_size();
             FbRange(wpr2.start - non_wpr_heap_size..wpr2.start)
         };
 
diff --git a/drivers/gpu/nova-core/fb/hal.rs b/drivers/gpu/nova-core/fb/hal.rs
index 714f0b51cd8f..99363cfb116b 100644
--- a/drivers/gpu/nova-core/fb/hal.rs
+++ b/drivers/gpu/nova-core/fb/hal.rs
@@ -37,7 +37,7 @@ pub(crate) trait FbHal {
     fn pmu_reserved_size(&self) -> u32;
 
     /// Returns the non-WPR heap size for this chipset, in bytes.
-    fn non_wpr_heap_size(&self) -> u32;
+    fn non_wpr_heap_size(&self) -> u64;
 
     /// Returns the FRTS size, in bytes.
     fn frts_size(&self) -> u64;
diff --git a/drivers/gpu/nova-core/fb/hal/ga100.rs b/drivers/gpu/nova-core/fb/hal/ga100.rs
index d13c9a826eef..a81b3e42ae41 100644
--- a/drivers/gpu/nova-core/fb/hal/ga100.rs
+++ b/drivers/gpu/nova-core/fb/hal/ga100.rs
@@ -74,7 +74,7 @@ fn pmu_reserved_size(&self) -> u32 {
         super::tu102::pmu_reserved_size_tu102()
     }
 
-    fn non_wpr_heap_size(&self) -> u32 {
+    fn non_wpr_heap_size(&self) -> u64 {
         super::tu102::non_wpr_heap_size_tu102()
     }
 
diff --git a/drivers/gpu/nova-core/fb/hal/ga102.rs b/drivers/gpu/nova-core/fb/hal/ga102.rs
index 44a2cf8a00f1..a5eeddb8a1ae 100644
--- a/drivers/gpu/nova-core/fb/hal/ga102.rs
+++ b/drivers/gpu/nova-core/fb/hal/ga102.rs
@@ -41,7 +41,7 @@ fn pmu_reserved_size(&self) -> u32 {
         super::tu102::pmu_reserved_size_tu102()
     }
 
-    fn non_wpr_heap_size(&self) -> u32 {
+    fn non_wpr_heap_size(&self) -> u64 {
         super::tu102::non_wpr_heap_size_tu102()
     }
 
diff --git a/drivers/gpu/nova-core/fb/hal/gb100.rs b/drivers/gpu/nova-core/fb/hal/gb100.rs
index 7e5b0e3ffc67..d9e4d62ae632 100644
--- a/drivers/gpu/nova-core/fb/hal/gb100.rs
+++ b/drivers/gpu/nova-core/fb/hal/gb100.rs
@@ -111,9 +111,9 @@ fn pmu_reserved_size(&self) -> u32 {
         pmu_reserved_size_gb100()
     }
 
-    fn non_wpr_heap_size(&self) -> u32 {
+    fn non_wpr_heap_size(&self) -> u64 {
         // Non-WPR heap for GB10x (see Open RM: kgspGetNonWprHeapSize, GB100/GB102).
-        u32::SZ_2M
+        u64::SZ_2M
     }
 
     fn frts_size(&self) -> u64 {
diff --git a/drivers/gpu/nova-core/fb/hal/gb202.rs b/drivers/gpu/nova-core/fb/hal/gb202.rs
index c590e5b1269c..4341ecf36188 100644
--- a/drivers/gpu/nova-core/fb/hal/gb202.rs
+++ b/drivers/gpu/nova-core/fb/hal/gb202.rs
@@ -71,10 +71,10 @@ fn pmu_reserved_size(&self) -> u32 {
         super::gb100::pmu_reserved_size_gb100()
     }
 
-    fn non_wpr_heap_size(&self) -> u32 {
+    fn non_wpr_heap_size(&self) -> u64 {
         // Non-WPR heap for GB20x (see Open RM: kgspGetNonWprHeapSize, GB202+).
         // This size is r570-specific.
-        u32::SZ_2M + u32::SZ_128K
+        u64::SZ_2M + u64::SZ_128K
     }
 
     fn frts_size(&self) -> u64 {
diff --git a/drivers/gpu/nova-core/fb/hal/gh100.rs b/drivers/gpu/nova-core/fb/hal/gh100.rs
index 2867ae058d0a..cf8e6403ef98 100644
--- a/drivers/gpu/nova-core/fb/hal/gh100.rs
+++ b/drivers/gpu/nova-core/fb/hal/gh100.rs
@@ -63,9 +63,9 @@ fn pmu_reserved_size(&self) -> u32 {
         super::tu102::pmu_reserved_size_tu102()
     }
 
-    fn non_wpr_heap_size(&self) -> u32 {
+    fn non_wpr_heap_size(&self) -> u64 {
         // Non-WPR heap for Hopper (see Open RM: kgspCalculateFbLayout_GH100).
-        u32::SZ_2M
+        u64::SZ_2M
     }
 
     fn frts_size(&self) -> u64 {
diff --git a/drivers/gpu/nova-core/fb/hal/tu102.rs b/drivers/gpu/nova-core/fb/hal/tu102.rs
index 541f163b52d3..bf5967cbffd3 100644
--- a/drivers/gpu/nova-core/fb/hal/tu102.rs
+++ b/drivers/gpu/nova-core/fb/hal/tu102.rs
@@ -46,8 +46,8 @@ pub(super) const fn pmu_reserved_size_tu102() -> u32 {
     0
 }
 
-pub(super) const fn non_wpr_heap_size_tu102() -> u32 {
-    u32::SZ_1M
+pub(super) const fn non_wpr_heap_size_tu102() -> u64 {
+    u64::SZ_1M
 }
 
 pub(super) const fn frts_size_tu102() -> u64 {
@@ -77,7 +77,7 @@ fn pmu_reserved_size(&self) -> u32 {
         pmu_reserved_size_tu102()
     }
 
-    fn non_wpr_heap_size(&self) -> u32 {
+    fn non_wpr_heap_size(&self) -> u64 {
         non_wpr_heap_size_tu102()
     }
 

-- 
2.55.0