drm/amdgpu: limit block size to one page (f7effef8) · Commits · 戴 / test

Signed-off-by:

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

+8 −0

Original line number	Diff line number	Diff line
		@@ -1042,6 +1042,14 @@ static bool amdgpu_check_pot_argument(int arg)

		static void amdgpu_get_block_size(struct amdgpu_device *adev)
		{
		/* from AI, asic starts to support multiple level VMPT */
		if (adev->family >= AMDGPU_FAMILY_AI) {
		if (amdgpu_vm_block_size != 9)
		dev_warn(adev->dev, "Multi-VMPT limits block size to"
		"one page!\n");
		amdgpu_vm_block_size = 9;
		return;
		}
		/* defines number of bits in page table versus page directory,
		* a page is 4KB so we have 12 bits offset, minimum 9 bits in the
		* page table and the remaining bits are in the page directory */