From: Hawking Zhang <Hawking.Zhang@amd.com>
Date: Sat, 17 Jan 2026 08:54:52 +0000 (+0800)
Subject: drm/amdgpu: Init table depth and block_size for A + A
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5aca9e0e82c541740428746400d7dcc90f4e0820;p=thirdparty%2Flinux.git

drm/amdgpu: Init table depth and block_size for A + A

Initialize page table depth and page table block
size for 2-level gart table construction on A + A
platform

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
index a68a398afebec..f5a328bb421db 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
@@ -765,6 +765,14 @@ static int gmc_v12_0_gart_init(struct amdgpu_device *adev)
 		return 0;
 	}
 
+	if (amdgpu_gmc_is_pdb0_enabled(adev)) {
+		adev->gmc.vmid0_page_table_depth = 1;
+		adev->gmc.vmid0_page_table_block_size = 12;
+	} else {
+		adev->gmc.vmid0_page_table_depth = 0;
+		adev->gmc.vmid0_page_table_block_size = 0;
+	}
+
 	/* Initialize common gart structure */
 	r = amdgpu_gart_init(adev);
 	if (r)