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bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/*
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* Copyright 2023 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/dma-fence.h>
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#include <linux/workqueue.h>
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#include "amdgpu.h"
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#include "amdgpu_vm.h"
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#include "amdgpu_gmc.h"
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struct amdgpu_tlb_fence {
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struct dma_fence base;
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struct amdgpu_device *adev;
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struct dma_fence *dependency;
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struct work_struct work;
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spinlock_t lock;
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uint16_t pasid;
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};
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static const char *amdgpu_tlb_fence_get_driver_name(struct dma_fence *fence)
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{
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return "amdgpu tlb fence";
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}
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static const char *amdgpu_tlb_fence_get_timeline_name(struct dma_fence *f)
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{
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return "amdgpu tlb timeline";
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}
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static void amdgpu_tlb_fence_work(struct work_struct *work)
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{
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struct amdgpu_tlb_fence *f = container_of(work, typeof(*f), work);
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int r;
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if (f->dependency) {
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dma_fence_wait(f->dependency, false);
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dma_fence_put(f->dependency);
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f->dependency = NULL;
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}
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r = amdgpu_gmc_flush_gpu_tlb_pasid(f->adev, f->pasid, 2, true, 0);
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if (r) {
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dev_err(f->adev->dev, "TLB flush failed for PASID %d.\n",
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f->pasid);
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dma_fence_set_error(&f->base, r);
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}
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dma_fence_signal(&f->base);
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dma_fence_put(&f->base);
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}
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static const struct dma_fence_ops amdgpu_tlb_fence_ops = {
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.get_driver_name = amdgpu_tlb_fence_get_driver_name,
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.get_timeline_name = amdgpu_tlb_fence_get_timeline_name
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};
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void amdgpu_vm_tlb_fence_create(struct amdgpu_device *adev, struct amdgpu_vm *vm,
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struct dma_fence **fence)
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{
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struct amdgpu_tlb_fence *f;
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f = kmalloc_obj(*f);
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if (!f) {
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/*
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* We can't fail since the PDEs and PTEs are already updated, so
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* just block for the dependency and execute the TLB flush
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*/
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if (*fence)
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dma_fence_wait(*fence, false);
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amdgpu_gmc_flush_gpu_tlb_pasid(adev, vm->pasid, 2, true, 0);
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*fence = dma_fence_get_stub();
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return;
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}
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f->adev = adev;
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f->dependency = *fence;
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f->pasid = vm->pasid;
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INIT_WORK(&f->work, amdgpu_tlb_fence_work);
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spin_lock_init(&f->lock);
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dma_fence_init64(&f->base, &amdgpu_tlb_fence_ops, &f->lock,
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vm->tlb_fence_context, atomic64_read(&vm->tlb_seq));
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/* TODO: We probably need a separate wq here */
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dma_fence_get(&f->base);
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schedule_work(&f->work);
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*fence = &f->base;
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}
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