/* * Copyright 2016 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. * */ #ifndef __AMDGPU_TTM_H__ #define __AMDGPU_TTM_H__ #include <linux/dma-direction.h> #include <drm/gpu_scheduler.h> #include "amdgpu.h" #define AMDGPU_PL_GDS (TTM_PL_PRIV + 0) #define AMDGPU_PL_GWS (TTM_PL_PRIV + 1) #define AMDGPU_PL_OA (TTM_PL_PRIV + 2) #define AMDGPU_PL_PREEMPT (TTM_PL_PRIV + 3) #define AMDGPU_GTT_MAX_TRANSFER_SIZE 512 #define AMDGPU_GTT_NUM_TRANSFER_WINDOWS 2 #define AMDGPU_POISON 0xd0bed0be struct amdgpu_vram_mgr { struct ttm_resource_manager manager; struct drm_mm mm; spinlock_t lock; struct list_head reservations_pending; struct list_head reserved_pages; atomic64_t usage; atomic64_t vis_usage; }; struct amdgpu_gtt_mgr { struct ttm_resource_manager manager; struct drm_mm mm; spinlock_t lock; atomic64_t used; }; struct amdgpu_preempt_mgr { struct ttm_resource_manager manager; atomic64_t used; }; struct amdgpu_mman { struct ttm_device bdev; bool initialized; void __iomem *aper_base_kaddr; /* buffer handling */ const struct amdgpu_buffer_funcs *buffer_funcs; struct amdgpu_ring *buffer_funcs_ring; bool buffer_funcs_enabled; struct mutex gtt_window_lock; /* Scheduler entity for buffer moves */ struct drm_sched_entity entity; struct amdgpu_vram_mgr vram_mgr; struct amdgpu_gtt_mgr gtt_mgr; struct amdgpu_preempt_mgr preempt_mgr; uint64_t stolen_vga_size; struct amdgpu_bo *stolen_vga_memory; uint64_t stolen_extended_size; struct amdgpu_bo *stolen_extended_memory; bool keep_stolen_vga_memory; struct amdgpu_bo *stolen_reserved_memory; uint64_t stolen_reserved_offset; uint64_t stolen_reserved_size; /* discovery */ uint8_t *discovery_bin; uint32_t discovery_tmr_size; struct amdgpu_bo *discovery_memory; /* firmware VRAM reservation */ u64 fw_vram_usage_start_offset; u64 fw_vram_usage_size; struct amdgpu_bo *fw_vram_usage_reserved_bo; void *fw_vram_usage_va; }; struct amdgpu_copy_mem { struct ttm_buffer_object *bo; struct ttm_resource *mem; unsigned long offset; }; int amdgpu_gtt_mgr_init(struct amdgpu_device *adev, uint64_t gtt_size); void amdgpu_gtt_mgr_fini(struct amdgpu_device *adev); int amdgpu_preempt_mgr_init(struct amdgpu_device *adev); void amdgpu_preempt_mgr_fini(struct amdgpu_device *adev); int amdgpu_vram_mgr_init(struct amdgpu_device *adev); void amdgpu_vram_mgr_fini(struct amdgpu_device *adev); bool amdgpu_gtt_mgr_has_gart_addr(struct ttm_resource *mem); uint64_t amdgpu_gtt_mgr_usage(struct ttm_resource_manager *man); int amdgpu_gtt_mgr_recover(struct ttm_resource_manager *man); uint64_t amdgpu_preempt_mgr_usage(struct ttm_resource_manager *man); u64 amdgpu_vram_mgr_bo_visible_size(struct amdgpu_bo *bo); int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev, struct ttm_resource *mem, u64 offset, u64 size, struct device *dev, enum dma_data_direction dir, struct sg_table **sgt); void amdgpu_vram_mgr_free_sgt(struct device *dev, enum dma_data_direction dir, struct sg_table *sgt); uint64_t amdgpu_vram_mgr_usage(struct ttm_resource_manager *man); uint64_t amdgpu_vram_mgr_vis_usage(struct ttm_resource_manager *man); int amdgpu_vram_mgr_reserve_range(struct ttm_resource_manager *man, uint64_t start, uint64_t size); int amdgpu_vram_mgr_query_page_status(struct ttm_resource_manager *man, uint64_t start); int amdgpu_ttm_init(struct amdgpu_device *adev); void amdgpu_ttm_fini(struct amdgpu_device *adev); void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable); int amdgpu_copy_buffer(struct amdgpu_ring *ring, uint64_t src_offset, uint64_t dst_offset, uint32_t byte_count, struct dma_resv *resv, struct dma_fence **fence, bool direct_submit, bool vm_needs_flush, bool tmz); int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev, const struct amdgpu_copy_mem *src, const struct amdgpu_copy_mem *dst, uint64_t size, bool tmz, struct dma_resv *resv, struct dma_fence **f); int amdgpu_fill_buffer(struct amdgpu_bo *bo, uint32_t src_data, struct dma_resv *resv, struct dma_fence **fence); int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo); int amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo); uint64_t amdgpu_ttm_domain_start(struct amdgpu_device *adev, uint32_t type); #if IS_ENABLED(CONFIG_DRM_AMDGPU_USERPTR) int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages); bool amdgpu_ttm_tt_get_user_pages_done(struct ttm_tt *ttm); #else static inline int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages) { return -EPERM; } static inline bool amdgpu_ttm_tt_get_user_pages_done(struct ttm_tt *ttm) { return false; } #endif void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages); int amdgpu_ttm_tt_set_userptr(struct ttm_buffer_object *bo, uint64_t addr, uint32_t flags); bool amdgpu_ttm_tt_has_userptr(struct ttm_tt *ttm); struct mm_struct *amdgpu_ttm_tt_get_usermm(struct ttm_tt *ttm); bool amdgpu_ttm_tt_affect_userptr(struct ttm_tt *ttm, unsigned long start, unsigned long end); bool amdgpu_ttm_tt_userptr_invalidated(struct ttm_tt *ttm, int *last_invalidated); bool amdgpu_ttm_tt_is_userptr(struct ttm_tt *ttm); bool amdgpu_ttm_tt_is_readonly(struct ttm_tt *ttm); uint64_t amdgpu_ttm_tt_pde_flags(struct ttm_tt *ttm, struct ttm_resource *mem); uint64_t amdgpu_ttm_tt_pte_flags(struct amdgpu_device *adev, struct ttm_tt *ttm, struct ttm_resource *mem); void amdgpu_ttm_debugfs_init(struct amdgpu_device *adev); #endif