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/*
* Copyright © 2014 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* 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 _AMDGPU_INTERNAL_H_
#define _AMDGPU_INTERNAL_H_
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include <pthread.h>
#include "libdrm_macros.h"
#include "xf86atomic.h"
#include "amdgpu.h"
#include "util_double_list.h"
#define AMDGPU_CS_MAX_RINGS 8
/* do not use below macro if b is not power of 2 aligned value */
#define __round_mask(x, y) ((__typeof__(x))((y)-1))
#define ROUND_UP(x, y) ((((x)-1) | __round_mask(x, y))+1)
#define ROUND_DOWN(x, y) ((x) & ~__round_mask(x, y))
#define AMDGPU_INVALID_VA_ADDRESS 0xffffffffffffffff
struct amdgpu_bo_va_hole {
struct list_head list;
uint64_t offset;
uint64_t size;
};
struct amdgpu_bo_va_mgr {
/* the start virtual address */
uint64_t va_offset;
uint64_t va_max;
struct list_head va_holes;
pthread_mutex_t bo_va_mutex;
uint32_t va_alignment;
};
struct amdgpu_va {
amdgpu_device_handle dev;
uint64_t address;
uint64_t size;
enum amdgpu_gpu_va_range range;
struct amdgpu_bo_va_mgr *vamgr;
};
struct amdgpu_device {
atomic_t refcount;
int fd;
int flink_fd;
unsigned major_version;
unsigned minor_version;
/** List of buffer handles. Protected by bo_table_mutex. */
struct util_hash_table *bo_handles;
/** List of buffer GEM flink names. Protected by bo_table_mutex. */
struct util_hash_table *bo_flink_names;
/** This protects all hash tables. */
pthread_mutex_t bo_table_mutex;
struct drm_amdgpu_info_device dev_info;
struct amdgpu_gpu_info info;
/** The global VA manager for the whole virtual address space */
struct amdgpu_bo_va_mgr *vamgr;
/** The VA manager for the 32bit address space */
struct amdgpu_bo_va_mgr *vamgr_32;
};
struct amdgpu_bo {
atomic_t refcount;
struct amdgpu_device *dev;
uint64_t alloc_size;
uint32_t handle;
uint32_t flink_name;
pthread_mutex_t cpu_access_mutex;
void *cpu_ptr;
int cpu_map_count;
};
struct amdgpu_bo_list {
struct amdgpu_device *dev;
uint32_t handle;
};
struct amdgpu_context {
struct amdgpu_device *dev;
/** Mutex for accessing fences and to maintain command submissions
in good sequence. */
pthread_mutex_t sequence_mutex;
/* context id*/
uint32_t id;
uint64_t last_seq[AMDGPU_HW_IP_NUM][AMDGPU_HW_IP_INSTANCE_MAX_COUNT][AMDGPU_CS_MAX_RINGS];
struct list_head sem_list[AMDGPU_HW_IP_NUM][AMDGPU_HW_IP_INSTANCE_MAX_COUNT][AMDGPU_CS_MAX_RINGS];
};
/**
* Structure describing sw semaphore based on scheduler
*
*/
struct amdgpu_semaphore {
atomic_t refcount;
struct list_head list;
struct amdgpu_cs_fence signal_fence;
};
/**
* Functions.
*/
drm_private void amdgpu_bo_free_internal(amdgpu_bo_handle bo);
drm_private void amdgpu_vamgr_init(struct amdgpu_bo_va_mgr *mgr, uint64_t start,
uint64_t max, uint64_t alignment);
drm_private void amdgpu_vamgr_deinit(struct amdgpu_bo_va_mgr *mgr);
drm_private uint64_t
amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr, uint64_t size,
uint64_t alignment, uint64_t base_required);
drm_private void
amdgpu_vamgr_free_va(struct amdgpu_bo_va_mgr *mgr, uint64_t va, uint64_t size);
drm_private int amdgpu_query_gpu_info_init(amdgpu_device_handle dev);
drm_private uint64_t amdgpu_cs_calculate_timeout(uint64_t timeout);
/**
* Inline functions.
*/
/**
* Increment src and decrement dst as if we were updating references
* for an assignment between 2 pointers of some objects.
*
* \return true if dst is 0
*/
static inline bool update_references(atomic_t *dst, atomic_t *src)
{
if (dst != src) {
/* bump src first */
if (src) {
assert(atomic_read(src) > 0);
atomic_inc(src);
}
if (dst) {
assert(atomic_read(dst) > 0);
return atomic_dec_and_test(dst);
}
}
return false;
}
/**
* Assignment between two amdgpu_bo pointers with reference counting.
*
* Usage:
* struct amdgpu_bo *dst = ... , *src = ...;
*
* dst = src;
* // No reference counting. Only use this when you need to move
* // a reference from one pointer to another.
*
* amdgpu_bo_reference(&dst, src);
* // Reference counters are updated. dst is decremented and src is
* // incremented. dst is freed if its reference counter is 0.
*/
static inline void amdgpu_bo_reference(struct amdgpu_bo **dst,
struct amdgpu_bo *src)
{
if (update_references(&(*dst)->refcount, &src->refcount))
amdgpu_bo_free_internal(*dst);
*dst = src;
}
#endif
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