Commit 7fcdbc70 authored by Jesse Zhang's avatar Jesse Zhang Committed by Yifan Qiao
Browse files

drm/amdgpu: Fix the warning division or modulo by zero 

stable inclusion
from stable-v6.6.50
commit d116bb921e8b104f45d1f30a473ea99ef4262b9a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IAUA67
CVE: CVE-2024-46806

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d116bb921e8b104f45d1f30a473ea99ef4262b9a



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[ Upstream commit 1a00f2ac82d6bc6689388c7edcd2a4bd82664f3c ]

Checks the partition mode and returns an error for an invalid mode.

Signed-off-by: default avatarJesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: default avatarYifan Qiao <qiaoyifan4@huawei.com>
parent 77f73ef1

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

+6 −0
Original line number Diff line number Diff line
@@ -500,6 +500,12 @@ static int aqua_vanjaram_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, 


	if (mode == AMDGPU_AUTO_COMPUTE_PARTITION_MODE) {

		mode = __aqua_vanjaram_get_auto_mode(xcp_mgr);

		if (mode == AMDGPU_UNKNOWN_COMPUTE_PARTITION_MODE) {

			dev_err(adev->dev,

				"Invalid config, no compatible compute partition mode found, available memory partitions: %d",

				adev->gmc.num_mem_partitions);

			return -EINVAL;

		}

	} else if (!__aqua_vanjaram_is_valid_mode(xcp_mgr, mode)) {

		dev_err(adev->dev,

			"Invalid compute partition mode requested, requested: %s, available memory partitions: %d",