228 lines
7.1 KiB
C
228 lines
7.1 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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* This file 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 KGD_KFD_INTERFACE_H_INCLUDED
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#define KGD_KFD_INTERFACE_H_INCLUDED
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#include <linux/types.h>
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struct pci_dev;
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#define KFD_INTERFACE_VERSION 1
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struct kfd_dev;
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struct kgd_dev;
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struct kgd_mem;
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enum kgd_memory_pool {
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KGD_POOL_SYSTEM_CACHEABLE = 1,
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KGD_POOL_SYSTEM_WRITECOMBINE = 2,
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KGD_POOL_FRAMEBUFFER = 3,
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};
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enum kgd_engine_type {
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KGD_ENGINE_PFP = 1,
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KGD_ENGINE_ME,
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KGD_ENGINE_CE,
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KGD_ENGINE_MEC1,
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KGD_ENGINE_MEC2,
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KGD_ENGINE_RLC,
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KGD_ENGINE_SDMA1,
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KGD_ENGINE_SDMA2,
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KGD_ENGINE_MAX
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};
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struct kgd2kfd_shared_resources {
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/* Bit n == 1 means VMID n is available for KFD. */
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unsigned int compute_vmid_bitmap;
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/* Compute pipes are counted starting from MEC0/pipe0 as 0. */
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unsigned int first_compute_pipe;
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/* Number of MEC pipes available for KFD. */
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unsigned int compute_pipe_count;
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/* Base address of doorbell aperture. */
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phys_addr_t doorbell_physical_address;
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/* Size in bytes of doorbell aperture. */
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size_t doorbell_aperture_size;
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/* Number of bytes at start of aperture reserved for KGD. */
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size_t doorbell_start_offset;
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};
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/**
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* struct kfd2kgd_calls
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*
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* @init_gtt_mem_allocation: Allocate a buffer on the gart aperture.
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* The buffer can be used for mqds, hpds, kernel queue, fence and runlists
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*
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* @free_gtt_mem: Frees a buffer that was allocated on the gart aperture
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*
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* @get_vmem_size: Retrieves (physical) size of VRAM
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*
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* @get_gpu_clock_counter: Retrieves GPU clock counter
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*
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* @get_max_engine_clock_in_mhz: Retrieves maximum GPU clock in MHz
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*
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* @program_sh_mem_settings: A function that should initiate the memory
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* properties such as main aperture memory type (cache / non cached) and
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* secondary aperture base address, size and memory type.
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* This function is used only for no cp scheduling mode.
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*
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* @set_pasid_vmid_mapping: Exposes pasid/vmid pair to the H/W for no cp
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* scheduling mode. Only used for no cp scheduling mode.
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*
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* @init_pipeline: Initialized the compute pipelines.
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*
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* @hqd_load: Loads the mqd structure to a H/W hqd slot. used only for no cp
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* sceduling mode.
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*
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* @hqd_sdma_load: Loads the SDMA mqd structure to a H/W SDMA hqd slot.
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* used only for no HWS mode.
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*
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* @hqd_is_occupies: Checks if a hqd slot is occupied.
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*
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* @hqd_destroy: Destructs and preempts the queue assigned to that hqd slot.
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*
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* @hqd_sdma_is_occupied: Checks if an SDMA hqd slot is occupied.
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*
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* @hqd_sdma_destroy: Destructs and preempts the SDMA queue assigned to that
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* SDMA hqd slot.
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*
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* @get_fw_version: Returns FW versions from the header
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*
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* This structure contains function pointers to services that the kgd driver
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* provides to amdkfd driver.
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*
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*/
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struct kfd2kgd_calls {
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int (*init_gtt_mem_allocation)(struct kgd_dev *kgd, size_t size,
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void **mem_obj, uint64_t *gpu_addr,
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void **cpu_ptr);
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void (*free_gtt_mem)(struct kgd_dev *kgd, void *mem_obj);
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uint64_t (*get_vmem_size)(struct kgd_dev *kgd);
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uint64_t (*get_gpu_clock_counter)(struct kgd_dev *kgd);
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uint32_t (*get_max_engine_clock_in_mhz)(struct kgd_dev *kgd);
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/* Register access functions */
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void (*program_sh_mem_settings)(struct kgd_dev *kgd, uint32_t vmid,
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uint32_t sh_mem_config, uint32_t sh_mem_ape1_base,
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uint32_t sh_mem_ape1_limit, uint32_t sh_mem_bases);
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int (*set_pasid_vmid_mapping)(struct kgd_dev *kgd, unsigned int pasid,
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unsigned int vmid);
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int (*init_pipeline)(struct kgd_dev *kgd, uint32_t pipe_id,
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uint32_t hpd_size, uint64_t hpd_gpu_addr);
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int (*init_interrupts)(struct kgd_dev *kgd, uint32_t pipe_id);
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int (*hqd_load)(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
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uint32_t queue_id, uint32_t __user *wptr);
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int (*hqd_sdma_load)(struct kgd_dev *kgd, void *mqd);
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bool (*hqd_is_occupied)(struct kgd_dev *kgd, uint64_t queue_address,
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uint32_t pipe_id, uint32_t queue_id);
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int (*hqd_destroy)(struct kgd_dev *kgd, uint32_t reset_type,
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unsigned int timeout, uint32_t pipe_id,
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uint32_t queue_id);
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bool (*hqd_sdma_is_occupied)(struct kgd_dev *kgd, void *mqd);
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int (*hqd_sdma_destroy)(struct kgd_dev *kgd, void *mqd,
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unsigned int timeout);
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int (*address_watch_disable)(struct kgd_dev *kgd);
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int (*address_watch_execute)(struct kgd_dev *kgd,
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unsigned int watch_point_id,
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uint32_t cntl_val,
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uint32_t addr_hi,
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uint32_t addr_lo);
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int (*wave_control_execute)(struct kgd_dev *kgd,
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uint32_t gfx_index_val,
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uint32_t sq_cmd);
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uint32_t (*address_watch_get_offset)(struct kgd_dev *kgd,
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unsigned int watch_point_id,
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unsigned int reg_offset);
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bool (*get_atc_vmid_pasid_mapping_valid)(
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struct kgd_dev *kgd,
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uint8_t vmid);
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uint16_t (*get_atc_vmid_pasid_mapping_pasid)(
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struct kgd_dev *kgd,
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uint8_t vmid);
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void (*write_vmid_invalidate_request)(struct kgd_dev *kgd,
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uint8_t vmid);
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uint16_t (*get_fw_version)(struct kgd_dev *kgd,
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enum kgd_engine_type type);
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};
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/**
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* struct kgd2kfd_calls
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*
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* @exit: Notifies amdkfd that kgd module is unloaded
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*
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* @probe: Notifies amdkfd about a probe done on a device in the kgd driver.
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*
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* @device_init: Initialize the newly probed device (if it is a device that
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* amdkfd supports)
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*
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* @device_exit: Notifies amdkfd about a removal of a kgd device
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*
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* @suspend: Notifies amdkfd about a suspend action done to a kgd device
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*
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* @resume: Notifies amdkfd about a resume action done to a kgd device
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*
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* This structure contains function callback pointers so the kgd driver
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* will notify to the amdkfd about certain status changes.
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*
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*/
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struct kgd2kfd_calls {
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void (*exit)(void);
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struct kfd_dev* (*probe)(struct kgd_dev *kgd, struct pci_dev *pdev,
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const struct kfd2kgd_calls *f2g);
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bool (*device_init)(struct kfd_dev *kfd,
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const struct kgd2kfd_shared_resources *gpu_resources);
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void (*device_exit)(struct kfd_dev *kfd);
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void (*interrupt)(struct kfd_dev *kfd, const void *ih_ring_entry);
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void (*suspend)(struct kfd_dev *kfd);
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int (*resume)(struct kfd_dev *kfd);
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};
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bool kgd2kfd_init(unsigned interface_version,
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const struct kgd2kfd_calls **g2f);
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#endif /* KGD_KFD_INTERFACE_H_INCLUDED */
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