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e28740ece3
This patch adds the interface between the radeon driver and the amdkfd driver. The interface implementation is contained in radeon_kfd.c and radeon_kfd.h. The interface itself is represented by a pointer to struct kfd_dev. The pointer is located inside radeon_device structure. All the register accesses that amdkfd need are done using this interface. This allows us to avoid direct register accesses in amdkfd proper, while also avoiding locking between amdkfd and radeon. The single exception is the doorbells that are used in both of the drivers. However, because they are located in separate pci bar pages, the danger of sharing registers between the drivers is minimal. Having said that, we are planning to move the doorbells as well to radeon. v3: Add interface for sa manager init and fini. The init function will allocate a buffer on system memory and pin it to the GART address space via the radeon sa manager. All mappings of buffers to GART address space are done via the radeon sa manager. The interface of allocate memory will use the radeon sa manager to sub allocate from the single buffer that was allocated during the init function. Change lower_32/upper_32 calls to use linux macros Add documentation for the interface v4: Change ptr field type in kgd_mem from uint32_t* to void* to match to type that is returned by radeon_sa_bo_cpu_addr v5: Change format of mqd structure to work with latest KV firmware Add support for AQL queues creation to enable working with open-source HSA runtime. Move generic kfd-->kgd interface and other generic kgd definitions to a generic header file that will be used by AMD's radeon and amdgpu drivers Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
/*
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* Copyright 2014 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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/*
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* radeon_kfd.h defines the private interface between the
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* AMD kernel graphics drivers and the AMD KFD.
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*/
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#ifndef RADEON_KFD_H_INCLUDED
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#define RADEON_KFD_H_INCLUDED
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#include <linux/types.h>
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#include "../amd/include/kgd_kfd_interface.h"
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struct radeon_device;
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bool radeon_kfd_init(void);
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void radeon_kfd_fini(void);
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void radeon_kfd_suspend(struct radeon_device *rdev);
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int radeon_kfd_resume(struct radeon_device *rdev);
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void radeon_kfd_interrupt(struct radeon_device *rdev,
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const void *ih_ring_entry);
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void radeon_kfd_device_probe(struct radeon_device *rdev);
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void radeon_kfd_device_init(struct radeon_device *rdev);
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void radeon_kfd_device_fini(struct radeon_device *rdev);
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#endif /* RADEON_KFD_H_INCLUDED */
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