drm/amdgpu: change the alignment size of TMR BO to 1M

align TMR BO size TO tmr size is not necessary,
modify the size to 1M to avoid re-create BO fail
when serious VRAM fragmentation.

v2:
add new macro PSP_TMR_ALIGNMENT for TMR BO alignment size
Signed-off-by: Yang Wang <KevinYang.Wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -756,7 +756,7 @@ static int psp_tmr_init(struct psp_context *psp)
 	}
 
 	pptr = amdgpu_sriov_vf(psp->adev) ? &tmr_buf : NULL;
-	ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, PSP_TMR_SIZE(psp->adev),
+	ret = amdgpu_bo_create_kernel(psp->adev, tmr_size, PSP_TMR_ALIGNMENT,
 				      AMDGPU_GEM_DOMAIN_VRAM,
 				      &psp->tmr_bo, &psp->tmr_mc_addr, pptr);
 

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

@@ -36,6 +36,7 @@
 #define PSP_CMD_BUFFER_SIZE	0x1000
 #define PSP_1_MEG		0x100000
 #define PSP_TMR_SIZE(adev)	((adev)->asic_type == CHIP_ALDEBARAN ? 0x800000 : 0x400000)
+#define PSP_TMR_ALIGNMENT	0x100000
 #define PSP_FW_NAME_LEN		0x24
 
 enum psp_shared_mem_size {