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authorDave Airlie <airlied@redhat.com>2015-06-04 09:15:39 +1000
committerDave Airlie <airlied@redhat.com>2015-06-04 09:15:39 +1000
commitcb2d47a47c59614821433b25ad3052181334aa18 (patch)
treee4893ad147322c0f563cdd9919667920c045fa91 /Documentation
parent3e8d222f2a95e9d30f13107bf4e48778f79e73b8 (diff)
parentc3447e815062bb48d70a5afa0567fd6f30bc7f1b (diff)
downloadkernel-cb2d47a47c59614821433b25ad3052181334aa18.tar.gz
Merge tag 'drm-amdkfd-next-2015-06-03' of git://people.freedesktop.org/~gabbayo/linux into drm-next
drm-amdkfd-next-2015-06-03: - Add the H/W debugger support module, including new IOCTLs to: - register/unregister a process as a debugged process - Set address watch-point in the debugged process's GPU kernel - Do a wave control operation in the debugged process's waves See the commit messages for more details on the available operations. The debugged process can only perform debug operation on itself. It is blocked by the amdkfd+H/W from performing operations on other processes's waves or GPU kernels. The blocking is done by setting the VMID and PASID of the debugged process in the packets that are sent to the CP with the debug instructions. - Add support for static user-mode queues. These queues are regular queues, but because they belong to the debugged process, we need to make sure the CP doesn't preempt them during a debug operation. Therefore, we mark them as static for the CP ignore them during preemption. - Support killing all the waves when a process is terminated. This is needed in case a process is terminated but we can't UNMAP its queues (can occur due to several reasons). In that case, the CP could be stuck unless we kill all its waves. This function is *very* important as it provides the kernel a high level of control over the GPU. The reason we didn't upstream this function so far, is because it is implemented using the H/W debugger module functions, so we had to wait until we can upstream the H/W debugger module. - Replace declaration of bitmap from unsigned long to standard DECLARE_BITMAP * tag 'drm-amdkfd-next-2015-06-03' of git://people.freedesktop.org/~gabbayo/linux: drm/amdkfd: Enforce kill all waves on process termination drm/radeon: Add ATC VMID<-->PASID functions to kfd->kgd drm/amdkfd: Implement address watch debugger IOCTL drm/amdkfd: Implement wave control debugger IOCTL drm/amdkfd: Implement (un)register debugger IOCTLs drm/amdkfd: Add address watch operation to debugger drm/amdkfd: Add wave control operation to debugger drm/amdkfd: Add skeleton H/W debugger module support drm/amdkfd: Add static user-mode queues support drm/amdkfd: add H/W debugger IOCTL set definitions drm/radeon: Add H/W debugger kfd->kgd functions drm/amdkfd: Use DECLARE_BITMAP
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