From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h | 101 +++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 kernel/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h (limited to 'kernel/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h') diff --git a/kernel/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h new file mode 100644 index 000000000..594053136 --- /dev/null +++ b/kernel/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.h @@ -0,0 +1,101 @@ +/* + * Copyright 2014 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#ifndef KFD_KERNEL_QUEUE_H_ +#define KFD_KERNEL_QUEUE_H_ + +#include +#include +#include "kfd_priv.h" + +/** + * struct kernel_queue_ops + * + * @initialize: Initialize a kernel queue, including allocations of GART memory + * needed for the queue. + * + * @uninitialize: Uninitialize a kernel queue and free all its memory usages. + * + * @acquire_packet_buffer: Returns a pointer to the location in the kernel + * queue ring buffer where the calling function can write its packet. It is + * Guaranteed that there is enough space for that packet. It also updates the + * pending write pointer to that location so subsequent calls to + * acquire_packet_buffer will get a correct write pointer + * + * @submit_packet: Update the write pointer and doorbell of a kernel queue. + * + * @sync_with_hw: Wait until the write pointer and the read pointer of a kernel + * queue are equal, which means the CP has read all the submitted packets. + * + * @rollback_packet: This routine is called if we failed to build an acquired + * packet for some reason. It just overwrites the pending wptr with the current + * one + * + */ +struct kernel_queue_ops { + bool (*initialize)(struct kernel_queue *kq, struct kfd_dev *dev, + enum kfd_queue_type type, unsigned int queue_size); + void (*uninitialize)(struct kernel_queue *kq); + int (*acquire_packet_buffer)(struct kernel_queue *kq, + size_t packet_size_in_dwords, + unsigned int **buffer_ptr); + + void (*submit_packet)(struct kernel_queue *kq); + void (*rollback_packet)(struct kernel_queue *kq); +}; + +struct kernel_queue { + struct kernel_queue_ops ops; + struct kernel_queue_ops ops_asic_specific; + + /* data */ + struct kfd_dev *dev; + struct mqd_manager *mqd; + struct queue *queue; + uint32_t pending_wptr; + unsigned int nop_packet; + + struct kfd_mem_obj *rptr_mem; + uint32_t *rptr_kernel; + uint64_t rptr_gpu_addr; + struct kfd_mem_obj *wptr_mem; + uint32_t *wptr_kernel; + uint64_t wptr_gpu_addr; + struct kfd_mem_obj *pq; + uint64_t pq_gpu_addr; + uint32_t *pq_kernel_addr; + struct kfd_mem_obj *eop_mem; + uint64_t eop_gpu_addr; + uint32_t *eop_kernel_addr; + + struct kfd_mem_obj *fence_mem_obj; + uint64_t fence_gpu_addr; + void *fence_kernel_address; + + struct list_head list; +}; + +void kernel_queue_init_cik(struct kernel_queue_ops *ops); +void kernel_queue_init_vi(struct kernel_queue_ops *ops); + +#endif /* KFD_KERNEL_QUEUE_H_ */ -- cgit 1.2.3-korg