265 lines
8.1 KiB
C
265 lines
8.1 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file defines the private interface between the
|
||
|
|
* AMD kernel graphics drivers and the AMD KFD.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef KGD_KFD_INTERFACE_H_INCLUDED
|
||
|
|
#define KGD_KFD_INTERFACE_H_INCLUDED
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/bitmap.h>
|
||
|
|
|
||
|
|
struct pci_dev;
|
||
|
|
|
||
|
|
#define KFD_INTERFACE_VERSION 2
|
||
|
|
#define KGD_MAX_QUEUES 128
|
||
|
|
|
||
|
|
struct kfd_dev;
|
||
|
|
struct kgd_dev;
|
||
|
|
|
||
|
|
struct kgd_mem;
|
||
|
|
|
||
|
|
enum kfd_preempt_type {
|
||
|
|
KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN = 0,
|
||
|
|
KFD_PREEMPT_TYPE_WAVEFRONT_RESET,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum kgd_memory_pool {
|
||
|
|
KGD_POOL_SYSTEM_CACHEABLE = 1,
|
||
|
|
KGD_POOL_SYSTEM_WRITECOMBINE = 2,
|
||
|
|
KGD_POOL_FRAMEBUFFER = 3,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum kgd_engine_type {
|
||
|
|
KGD_ENGINE_PFP = 1,
|
||
|
|
KGD_ENGINE_ME,
|
||
|
|
KGD_ENGINE_CE,
|
||
|
|
KGD_ENGINE_MEC1,
|
||
|
|
KGD_ENGINE_MEC2,
|
||
|
|
KGD_ENGINE_RLC,
|
||
|
|
KGD_ENGINE_SDMA1,
|
||
|
|
KGD_ENGINE_SDMA2,
|
||
|
|
KGD_ENGINE_MAX
|
||
|
|
};
|
||
|
|
|
||
|
|
struct kgd2kfd_shared_resources {
|
||
|
|
/* Bit n == 1 means VMID n is available for KFD. */
|
||
|
|
unsigned int compute_vmid_bitmap;
|
||
|
|
|
||
|
|
/* number of pipes per mec */
|
||
|
|
uint32_t num_pipe_per_mec;
|
||
|
|
|
||
|
|
/* number of queues per pipe */
|
||
|
|
uint32_t num_queue_per_pipe;
|
||
|
|
|
||
|
|
/* Bit n == 1 means Queue n is available for KFD */
|
||
|
|
DECLARE_BITMAP(queue_bitmap, KGD_MAX_QUEUES);
|
||
|
|
|
||
|
|
/* Base address of doorbell aperture. */
|
||
|
|
phys_addr_t doorbell_physical_address;
|
||
|
|
|
||
|
|
/* Size in bytes of doorbell aperture. */
|
||
|
|
size_t doorbell_aperture_size;
|
||
|
|
|
||
|
|
/* Number of bytes at start of aperture reserved for KGD. */
|
||
|
|
size_t doorbell_start_offset;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct tile_config {
|
||
|
|
uint32_t *tile_config_ptr;
|
||
|
|
uint32_t *macro_tile_config_ptr;
|
||
|
|
uint32_t num_tile_configs;
|
||
|
|
uint32_t num_macro_tile_configs;
|
||
|
|
|
||
|
|
uint32_t gb_addr_config;
|
||
|
|
uint32_t num_banks;
|
||
|
|
uint32_t num_ranks;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct kfd2kgd_calls
|
||
|
|
*
|
||
|
|
* @init_gtt_mem_allocation: Allocate a buffer on the gart aperture.
|
||
|
|
* The buffer can be used for mqds, hpds, kernel queue, fence and runlists
|
||
|
|
*
|
||
|
|
* @free_gtt_mem: Frees a buffer that was allocated on the gart aperture
|
||
|
|
*
|
||
|
|
* @get_vmem_size: Retrieves (physical) size of VRAM
|
||
|
|
*
|
||
|
|
* @get_gpu_clock_counter: Retrieves GPU clock counter
|
||
|
|
*
|
||
|
|
* @get_max_engine_clock_in_mhz: Retrieves maximum GPU clock in MHz
|
||
|
|
*
|
||
|
|
* @alloc_pasid: Allocate a PASID
|
||
|
|
* @free_pasid: Free a PASID
|
||
|
|
*
|
||
|
|
* @program_sh_mem_settings: A function that should initiate the memory
|
||
|
|
* properties such as main aperture memory type (cache / non cached) and
|
||
|
|
* secondary aperture base address, size and memory type.
|
||
|
|
* This function is used only for no cp scheduling mode.
|
||
|
|
*
|
||
|
|
* @set_pasid_vmid_mapping: Exposes pasid/vmid pair to the H/W for no cp
|
||
|
|
* scheduling mode. Only used for no cp scheduling mode.
|
||
|
|
*
|
||
|
|
* @init_pipeline: Initialized the compute pipelines.
|
||
|
|
*
|
||
|
|
* @hqd_load: Loads the mqd structure to a H/W hqd slot. used only for no cp
|
||
|
|
* sceduling mode.
|
||
|
|
*
|
||
|
|
* @hqd_sdma_load: Loads the SDMA mqd structure to a H/W SDMA hqd slot.
|
||
|
|
* used only for no HWS mode.
|
||
|
|
*
|
||
|
|
* @hqd_is_occupies: Checks if a hqd slot is occupied.
|
||
|
|
*
|
||
|
|
* @hqd_destroy: Destructs and preempts the queue assigned to that hqd slot.
|
||
|
|
*
|
||
|
|
* @hqd_sdma_is_occupied: Checks if an SDMA hqd slot is occupied.
|
||
|
|
*
|
||
|
|
* @hqd_sdma_destroy: Destructs and preempts the SDMA queue assigned to that
|
||
|
|
* SDMA hqd slot.
|
||
|
|
*
|
||
|
|
* @get_fw_version: Returns FW versions from the header
|
||
|
|
*
|
||
|
|
* @set_scratch_backing_va: Sets VA for scratch backing memory of a VMID.
|
||
|
|
* Only used for no cp scheduling mode
|
||
|
|
*
|
||
|
|
* @get_tile_config: Returns GPU-specific tiling mode information
|
||
|
|
*
|
||
|
|
* This structure contains function pointers to services that the kgd driver
|
||
|
|
* provides to amdkfd driver.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
struct kfd2kgd_calls {
|
||
|
|
int (*init_gtt_mem_allocation)(struct kgd_dev *kgd, size_t size,
|
||
|
|
void **mem_obj, uint64_t *gpu_addr,
|
||
|
|
void **cpu_ptr);
|
||
|
|
|
||
|
|
void (*free_gtt_mem)(struct kgd_dev *kgd, void *mem_obj);
|
||
|
|
|
||
|
|
uint64_t (*get_vmem_size)(struct kgd_dev *kgd);
|
||
|
|
uint64_t (*get_gpu_clock_counter)(struct kgd_dev *kgd);
|
||
|
|
|
||
|
|
uint32_t (*get_max_engine_clock_in_mhz)(struct kgd_dev *kgd);
|
||
|
|
|
||
|
|
int (*alloc_pasid)(unsigned int bits);
|
||
|
|
void (*free_pasid)(unsigned int pasid);
|
||
|
|
|
||
|
|
/* Register access functions */
|
||
|
|
void (*program_sh_mem_settings)(struct kgd_dev *kgd, uint32_t vmid,
|
||
|
|
uint32_t sh_mem_config, uint32_t sh_mem_ape1_base,
|
||
|
|
uint32_t sh_mem_ape1_limit, uint32_t sh_mem_bases);
|
||
|
|
|
||
|
|
int (*set_pasid_vmid_mapping)(struct kgd_dev *kgd, unsigned int pasid,
|
||
|
|
unsigned int vmid);
|
||
|
|
|
||
|
|
int (*init_pipeline)(struct kgd_dev *kgd, uint32_t pipe_id,
|
||
|
|
uint32_t hpd_size, uint64_t hpd_gpu_addr);
|
||
|
|
|
||
|
|
int (*init_interrupts)(struct kgd_dev *kgd, uint32_t pipe_id);
|
||
|
|
|
||
|
|
int (*hqd_load)(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
|
||
|
|
uint32_t queue_id, uint32_t __user *wptr,
|
||
|
|
uint32_t wptr_shift, uint32_t wptr_mask,
|
||
|
|
struct mm_struct *mm);
|
||
|
|
|
||
|
|
int (*hqd_sdma_load)(struct kgd_dev *kgd, void *mqd);
|
||
|
|
|
||
|
|
bool (*hqd_is_occupied)(struct kgd_dev *kgd, uint64_t queue_address,
|
||
|
|
uint32_t pipe_id, uint32_t queue_id);
|
||
|
|
|
||
|
|
int (*hqd_destroy)(struct kgd_dev *kgd, void *mqd, uint32_t reset_type,
|
||
|
|
unsigned int timeout, uint32_t pipe_id,
|
||
|
|
uint32_t queue_id);
|
||
|
|
|
||
|
|
bool (*hqd_sdma_is_occupied)(struct kgd_dev *kgd, void *mqd);
|
||
|
|
|
||
|
|
int (*hqd_sdma_destroy)(struct kgd_dev *kgd, void *mqd,
|
||
|
|
unsigned int timeout);
|
||
|
|
|
||
|
|
int (*address_watch_disable)(struct kgd_dev *kgd);
|
||
|
|
int (*address_watch_execute)(struct kgd_dev *kgd,
|
||
|
|
unsigned int watch_point_id,
|
||
|
|
uint32_t cntl_val,
|
||
|
|
uint32_t addr_hi,
|
||
|
|
uint32_t addr_lo);
|
||
|
|
int (*wave_control_execute)(struct kgd_dev *kgd,
|
||
|
|
uint32_t gfx_index_val,
|
||
|
|
uint32_t sq_cmd);
|
||
|
|
uint32_t (*address_watch_get_offset)(struct kgd_dev *kgd,
|
||
|
|
unsigned int watch_point_id,
|
||
|
|
unsigned int reg_offset);
|
||
|
|
bool (*get_atc_vmid_pasid_mapping_valid)(
|
||
|
|
struct kgd_dev *kgd,
|
||
|
|
uint8_t vmid);
|
||
|
|
uint16_t (*get_atc_vmid_pasid_mapping_pasid)(
|
||
|
|
struct kgd_dev *kgd,
|
||
|
|
uint8_t vmid);
|
||
|
|
void (*write_vmid_invalidate_request)(struct kgd_dev *kgd,
|
||
|
|
uint8_t vmid);
|
||
|
|
|
||
|
|
uint16_t (*get_fw_version)(struct kgd_dev *kgd,
|
||
|
|
enum kgd_engine_type type);
|
||
|
|
void (*set_scratch_backing_va)(struct kgd_dev *kgd,
|
||
|
|
uint64_t va, uint32_t vmid);
|
||
|
|
int (*get_tile_config)(struct kgd_dev *kgd, struct tile_config *config);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct kgd2kfd_calls
|
||
|
|
*
|
||
|
|
* @exit: Notifies amdkfd that kgd module is unloaded
|
||
|
|
*
|
||
|
|
* @probe: Notifies amdkfd about a probe done on a device in the kgd driver.
|
||
|
|
*
|
||
|
|
* @device_init: Initialize the newly probed device (if it is a device that
|
||
|
|
* amdkfd supports)
|
||
|
|
*
|
||
|
|
* @device_exit: Notifies amdkfd about a removal of a kgd device
|
||
|
|
*
|
||
|
|
* @suspend: Notifies amdkfd about a suspend action done to a kgd device
|
||
|
|
*
|
||
|
|
* @resume: Notifies amdkfd about a resume action done to a kgd device
|
||
|
|
*
|
||
|
|
* This structure contains function callback pointers so the kgd driver
|
||
|
|
* will notify to the amdkfd about certain status changes.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
struct kgd2kfd_calls {
|
||
|
|
void (*exit)(void);
|
||
|
|
struct kfd_dev* (*probe)(struct kgd_dev *kgd, struct pci_dev *pdev,
|
||
|
|
const struct kfd2kgd_calls *f2g);
|
||
|
|
bool (*device_init)(struct kfd_dev *kfd,
|
||
|
|
const struct kgd2kfd_shared_resources *gpu_resources);
|
||
|
|
void (*device_exit)(struct kfd_dev *kfd);
|
||
|
|
void (*interrupt)(struct kfd_dev *kfd, const void *ih_ring_entry);
|
||
|
|
void (*suspend)(struct kfd_dev *kfd);
|
||
|
|
int (*resume)(struct kfd_dev *kfd);
|
||
|
|
};
|
||
|
|
|
||
|
|
int kgd2kfd_init(unsigned interface_version,
|
||
|
|
const struct kgd2kfd_calls **g2f);
|
||
|
|
|
||
|
|
#endif /* KGD_KFD_INTERFACE_H_INCLUDED */
|