diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_vm.h b/sys/dev/pci/drm/amd/amdgpu/amdgpu_vm.h
index 7ee4fda4410..adc7245b1c9 100644
--- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_vm.h
+++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_vm.h
@@ -172,7 +172,7 @@ struct amdgpu_bo_vm;
 #define AMDGPU_VA_RESERVED_SEQ64_SIZE		(2ULL << 20)
 #define AMDGPU_VA_RESERVED_SEQ64_START(adev)	(AMDGPU_VA_RESERVED_CSA_START(adev) \
 						 - AMDGPU_VA_RESERVED_SEQ64_SIZE)
-#define AMDGPU_VA_RESERVED_TRAP_SIZE		(2ULL << 12)
+#define AMDGPU_VA_RESERVED_TRAP_SIZE		(1ULL << 16)
 #define AMDGPU_VA_RESERVED_TRAP_START(adev)	(AMDGPU_VA_RESERVED_SEQ64_START(adev) \
 						 - AMDGPU_VA_RESERVED_TRAP_SIZE)
 #define AMDGPU_VA_RESERVED_BOTTOM		(1ULL << 16)
diff --git a/sys/dev/pci/drm/amd/amdkfd/kfd_priv.h b/sys/dev/pci/drm/amd/amdkfd/kfd_priv.h
index 70ef051511b..4f4eb079113 100644
--- a/sys/dev/pci/drm/amd/amdkfd/kfd_priv.h
+++ b/sys/dev/pci/drm/amd/amdkfd/kfd_priv.h
@@ -102,8 +102,8 @@
  * The first chunk is the TBA used for the CWSR ISA code. The second
  * chunk is used as TMA for user-mode trap handler setup in daisy-chain mode.
  */
-#define KFD_CWSR_TBA_TMA_SIZE (PAGE_SIZE * 2)
-#define KFD_CWSR_TMA_OFFSET (PAGE_SIZE + 2048)
+#define KFD_CWSR_TBA_TMA_SIZE (AMDGPU_GPU_PAGE_SIZE * 2)
+#define KFD_CWSR_TMA_OFFSET (AMDGPU_GPU_PAGE_SIZE + 2048)
 
 #define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE		\
 	(KFD_MAX_NUM_OF_PROCESSES *			\