[PATCH] drm/amdgpu: Enable 5-level page table for GFX 12.1.0

[Alex Deucher <alexander.deucher@amd.com>]

From: Philip Yang <Philip.Yang@amd.com>

GFX 12.1.0 support 57bit virtual, 52bit physical address, set PDE
max_level to 4, min_vm_size to 128PB to enable GPU vm 5-level page
tables to support 57bit virtual address.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
index e63ad5f18a8e1..57aabe0dcfdfe 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
@@ -809,11 +809,11 @@ static int gmc_v12_0_sw_init(struct amdgpu_ip_block *ip_block)
 		for (i = 0; i < hweight32(adev->aid_mask); i++)
 			set_bit(AMDGPU_MMHUB0(i), adev->vmhubs_mask);
 		/*
-		 * To fulfill 4-level page support,
-		 * vm size is 256TB (48bit), maximum size,
+		 * To fulfill 5-level page support,
+		 * vm size is 128PetaByte (57bit), maximum size,
 		 * block size 512 (9bit)
 		 */
-		amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
+		amdgpu_vm_adjust_size(adev, 128 * 1024 * 1024, 9, 4, 57);
 		break;
 	default:
 		break;
-- 
2.52.0