[PATCH 2/2] drm/amdgpu: set vm size as 256TB for Vega10

From: Junwei Zhang <Jerry.Zhang-5C7GfCeVMHo@public.gmane.org>
To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	christian.koenig-5C7GfCeVMHo@public.gmane.org
Cc: Junwei Zhang <Jerry.Zhang-5C7GfCeVMHo@public.gmane.org>
Subject: [PATCH 2/2] drm/amdgpu: set vm size as 256TB for Vega10
Date: Wed, 29 Mar 2017 16:08:32 +0800	[thread overview]
Message-ID: <1490774912-583-2-git-send-email-Jerry.Zhang@amd.com> (raw)
In-Reply-To: <1490774912-583-1-git-send-email-Jerry.Zhang-5C7GfCeVMHo@public.gmane.org>

Signed-off-by: Junwei Zhang <Jerry.Zhang@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 1ad1113..4af4ea0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1080,6 +1080,11 @@ static void amdgpu_get_block_size(struct amdgpu_device *adev)
 
 static void amdgpu_check_vm_size(struct amdgpu_device *adev)
 {
+	if (adev->asic_type >= CHIP_VEGA10) {
+		amdgpu_vm_size = 1U << 18; /* 256TB */
+		return;
+	}
+
 	if (!amdgpu_check_pot_argument(amdgpu_vm_size)) {
 		dev_warn(adev->dev, "VM size (%d) must be a power of 2\n",
 			 amdgpu_vm_size);
-- 
1.9.1

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