Commit 6f744d79 authored by Philip Yang's avatar Philip Yang Committed by Alex Deucher
Browse files

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



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: default avatarPhilip Yang <Philip.Yang@amd.com>
Acked-by: default avatarFelix Kuehling <felix.kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 2d1fd547

drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c

+3 −3
Original line number Diff line number Diff line
@@ -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;