[PATCH v5 09/11] drm: nova: Report GPU name in GPU info

[Alistair Popple]

Add the full GPU name to the GPU info structure.

Signed-off-by: Alistair Popple <apop...@nvidia.com>

---

Changes since v4:

 - New for v5
---
 drivers/gpu/drm/nova/file.rs          | 1 +
 drivers/gpu/nova-core/api.rs          | 5 +++++
 drivers/gpu/nova-core/gsp/commands.rs | 5 +++++
 include/uapi/drm/nova_drm.h           | 5 +++++
 4 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/nova/file.rs b/drivers/gpu/drm/nova/file.rs
index 6fc169c66d02..ab04a10d3353 100644
--- a/drivers/gpu/drm/nova/file.rs
+++ b/drivers/gpu/drm/nova/file.rs
@@ -36,6 +36,7 @@ fn new(reg_data: &DrmRegData<'_>) -> Self {
             architecture: reg_data.api.architecture(),
             implementation: reg_data.api.implementation(),
             vram_size: reg_data.api.vram_size(),
+            gpu_name: reg_data.api.gpu_name(),
         })
     }
 }
diff --git a/drivers/gpu/nova-core/api.rs b/drivers/gpu/nova-core/api.rs
index f4fd78f9c321..e6789f1485d1 100644
--- a/drivers/gpu/nova-core/api.rs
+++ b/drivers/gpu/nova-core/api.rs
@@ -24,6 +24,11 @@ pub struct NovaCoreApi<'bound> {
 }
 
 impl NovaCoreApi<'_> {
+    /// Returns the NUL-terminated full GPU name supplied by GSP-RM.
+    pub fn gpu_name(&self) -> [u8; 64] {
+        *self.gpu.gsp_static_info.gpu_name_bytes()
+    }
+
     /// Obtain a [`NovaCoreApi`] handle from an auxiliary device registered
     /// by nova-core.
     pub fn of(adev: &auxiliary::Device<Bound>) -> 
Result<Pin<&NovaCoreApi<'_>>> {
diff --git a/drivers/gpu/nova-core/gsp/commands.rs 
b/drivers/gpu/nova-core/gsp/commands.rs
index 6453184af55b..b8dc64808620 100644
--- a/drivers/gpu/nova-core/gsp/commands.rs
+++ b/drivers/gpu/nova-core/gsp/commands.rs
@@ -251,6 +251,11 @@ pub(crate) enum GpuNameError {
 }
 
 impl GetGspStaticInfoReply {
+    /// Returns the full GPU name as a NUL-terminated byte string.
+    pub(crate) fn gpu_name_bytes(&self) -> &[u8; 64] {
+        &self.gpu_name
+    }
+
     /// Returns the name of the GPU as a string.
     ///
     /// Returns an error if the string given by the GSP does not contain a 
null terminator or
diff --git a/include/uapi/drm/nova_drm.h b/include/uapi/drm/nova_drm.h
index b80bb50acaa1..7e11d1bfeb6b 100644
--- a/include/uapi/drm/nova_drm.h
+++ b/include/uapi/drm/nova_drm.h
@@ -142,6 +142,11 @@ struct drm_nova_gpu_info {
         * regions.
         */
        __u64 vram_size;
+
+       /**
+        * @gpu_name: NUL-terminated full GPU name.
+        */
+       __u8 gpu_name[64];
 };
 
 #define DRM_NOVA_GETPARAM              0x00
-- 
2.54.0