[PATCH] drm/amdkfd: Remove unused functions

[linux]

From: "Dr. David Alan Gilbert" <li...@treblig.org>

kfd_device_by_pci_dev(), kfd_get_pasid_limit() and kfd_set_pasid_limit()
have been unused since 2023's
commit c99a2e7ae291 ("drm/amdkfd: drop IOMMUv2 support")

Remove them.

Signed-off-by: Dr. David Alan Gilbert <li...@treblig.org>
---
 drivers/gpu/drm/amd/amdkfd/kfd_pasid.c    | 24 -----------------------
 drivers/gpu/drm/amd/amdkfd/kfd_priv.h     |  3 ---
 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 18 -----------------
 3 files changed, 45 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c
index e3b250918f39..8896426e0556 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c
@@ -28,30 +28,6 @@
 static unsigned int pasid_bits = 16;
 static bool pasids_allocated; /* = false */
 
-bool kfd_set_pasid_limit(unsigned int new_limit)
-{
-       if (new_limit < 2)
-               return false;
-
-       if (new_limit < (1U << pasid_bits)) {
-               if (pasids_allocated)
-                       /* We've already allocated user PASIDs, too late to
-                        * change the limit
-                        */
-                       return false;
-
-               while (new_limit < (1U << pasid_bits))
-                       pasid_bits--;
-       }
-
-       return true;
-}
-
-unsigned int kfd_get_pasid_limit(void)
-{
-       return 1U << pasid_bits;
-}
-
 u32 kfd_pasid_alloc(void)
 {
        int r = amdgpu_pasid_alloc(pasid_bits);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h 
b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 9e5ca0b93b2a..0b5979b29bbc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -1086,8 +1086,6 @@ struct kfd_process *kfd_lookup_process_by_pid(struct pid 
*pid);
 /* PASIDs */
 int kfd_pasid_init(void);
 void kfd_pasid_exit(void);
-bool kfd_set_pasid_limit(unsigned int new_limit);
-unsigned int kfd_get_pasid_limit(void);
 u32 kfd_pasid_alloc(void);
 void kfd_pasid_free(u32 pasid);
 
@@ -1137,7 +1135,6 @@ struct kfd_topology_device 
*kfd_topology_device_by_proximity_domain_no_lock(
                                                uint32_t proximity_domain);
 struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id);
 struct kfd_node *kfd_device_by_id(uint32_t gpu_id);
-struct kfd_node *kfd_device_by_pci_dev(const struct pci_dev *pdev);
 static inline bool kfd_irq_is_from_node(struct kfd_node *node, uint32_t 
node_id,
                                        uint32_t vmid)
 {
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 9476e30d6baa..a9bc9ab7e31d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -108,24 +108,6 @@ struct kfd_node *kfd_device_by_id(uint32_t gpu_id)
        return top_dev->gpu;
 }
 
-struct kfd_node *kfd_device_by_pci_dev(const struct pci_dev *pdev)
-{
-       struct kfd_topology_device *top_dev;
-       struct kfd_node *device = NULL;
-
-       down_read(&topology_lock);
-
-       list_for_each_entry(top_dev, &topology_device_list, list)
-               if (top_dev->gpu && top_dev->gpu->adev->pdev == pdev) {
-                       device = top_dev->gpu;
-                       break;
-               }
-
-       up_read(&topology_lock);
-
-       return device;
-}
-
 /* Called with write topology_lock acquired */
 static void kfd_release_topology_device(struct kfd_topology_device *dev)
 {
-- 
2.47.1