drm/amdgpu: use linux size macro to simplify ONE_Kib & One_Mib

replace internal size macro with linux size macro
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Tianci Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

@@ -1719,10 +1719,10 @@ static int amdgpu_ttm_training_reserve_vram_fini(struct amdgpu_device *adev)
 
 static u64 amdgpu_ttm_training_get_c2p_offset(u64 vram_size)
 {
-       if ((vram_size & (ONE_MiB - 1)) < (4 * ONE_KiB + 1) )
-               vram_size -= ONE_MiB;
+       if ((vram_size & (SZ_1M - 1)) < (SZ_4K + 1) )
+               vram_size -= SZ_1M;
 
-       return ALIGN(vram_size, ONE_MiB);
+       return ALIGN(vram_size, SZ_1M);
 }
 
 /**

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h

@@ -66,13 +66,6 @@ struct amdgpu_copy_mem {
 	unsigned long			offset;
 };
 
-/* Definitions for constance */
-enum amdgpu_internal_constants
-{
-	ONE_KiB	= 0x400,
-	ONE_MiB	= 0x100000,
-};
-
 extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
 extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;