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In some cases, manually insmod/rmmod amdgpu is necessary. When unloading amdgpu, the KIQ IRQ enable/disable function will case system hang. The root cause is, in the sequence of function amdgpu_fini, the sw_fini of IP block AMD_IP_BLOCK_TYPE_GFX will be invoked earlier than that of AMD_IP_BLOCK_TYPE_IH. So continue to use the variable freed by AMD_IP_BLOCK_TYPE_GFX will cause system hang. Signed-off-by: Trigger Huang <trigger.huang@amd.com> Reviewed-by: Xiangliang Yu < Xiangliang.Yu@amd.com> Reviewed-by: Monk Liu <monk.liu@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.