diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h new file mode 100644 index 000000000000..893c2490b783 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -0,0 +1,112 @@ +/* + * Copyright 2018 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + */ +#ifndef __AMDGPU_GMC_H__ +#define __AMDGPU_GMC_H__ + +#include <linux/types.h> + +#include "amdgpu_irq.h" + +struct firmware; + +/* + * VMHUB structures, functions & helpers + */ +struct amdgpu_vmhub { + uint32_t ctx0_ptb_addr_lo32; + uint32_t ctx0_ptb_addr_hi32; + uint32_t vm_inv_eng0_req; + uint32_t vm_inv_eng0_ack; + uint32_t vm_context0_cntl; + uint32_t vm_l2_pro_fault_status; + uint32_t vm_l2_pro_fault_cntl; +}; + +/* + * GPU MC structures, functions & helpers + */ +struct amdgpu_gmc_funcs { + /* flush the vm tlb via mmio */ + void (*flush_gpu_tlb)(struct amdgpu_device *adev, + uint32_t vmid); + /* flush the vm tlb via ring */ + uint64_t (*emit_flush_gpu_tlb)(struct amdgpu_ring *ring, unsigned vmid, + uint64_t pd_addr); + /* Change the VMID -> PASID mapping */ + void (*emit_pasid_mapping)(struct amdgpu_ring *ring, unsigned vmid, + unsigned pasid); + /* write pte/pde updates using the cpu */ + int (*set_pte_pde)(struct amdgpu_device *adev, + void *cpu_pt_addr, /* cpu addr of page table */ + uint32_t gpu_page_idx, /* pte/pde to update */ + uint64_t addr, /* addr to write into pte/pde */ + uint64_t flags); /* access flags */ + /* enable/disable PRT support */ + void (*set_prt)(struct amdgpu_device *adev, bool enable); + /* set pte flags based per asic */ + uint64_t (*get_vm_pte_flags)(struct amdgpu_device *adev, + uint32_t flags); + /* get the pde for a given mc addr */ + void (*get_vm_pde)(struct amdgpu_device *adev, int level, + u64 *dst, u64 *flags); +}; + +struct amdgpu_gmc { + resource_size_t aper_size; + resource_size_t aper_base; + /* for some chips with <= 32MB we need to lie + * about vram size near mc fb location */ + u64 mc_vram_size; + u64 visible_vram_size; + u64 gart_size; + u64 gart_start; + u64 gart_end; + u64 vram_start; + u64 vram_end; + unsigned vram_width; + u64 real_vram_size; + int vram_mtrr; + u64 mc_mask; + const struct firmware *fw; /* MC firmware */ + uint32_t fw_version; + struct amdgpu_irq_src vm_fault; + uint32_t vram_type; + uint32_t srbm_soft_reset; + bool prt_warning; + uint64_t stolen_size; + /* apertures */ + u64 shared_aperture_start; + u64 shared_aperture_end; + u64 private_aperture_start; + u64 private_aperture_end; + /* protects concurrent invalidation */ + spinlock_t invalidate_lock; + bool translate_further; + + const struct amdgpu_gmc_funcs *gmc_funcs; +}; + +#endif |