Quelle amdgpu_gmc.h
Sprache: C
/*
* 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"
#include "amdgpu_xgmi.h"
#include "amdgpu_ras.h"
/* VA hole for 48bit addresses on Vega10 */
#define AMDGPU_GMC_HOLE_START 0 x0000800000000000ULL
#define AMDGPU_GMC_HOLE_END 0 xffff800000000000ULL
/*
* Hardware is programmed as if the hole doesn ' t exists with start and end
* address values .
*
* This mask is used to remove the upper 16 bits of the VA and so come up with
* the linear addr value .
*/
#define AMDGPU_GMC_HOLE_MASK 0 x0000ffffffffffffULL
/*
* Ring size as power of two for the log of recent faults .
*/
#define AMDGPU_GMC_FAULT_RING_ORDER 8
#define AMDGPU_GMC_FAULT_RING_SIZE (1 << AMDGPU_GMC_FAULT_RING_ORDER)
/*
* Hash size as power of two for the log of recent faults
*/
#define AMDGPU_GMC_FAULT_HASH_ORDER 8
#define AMDGPU_GMC_FAULT_HASH_SIZE (1 << AMDGPU_GMC_FAULT_HASH_ORDER)
/*
* Number of IH timestamp ticks until a fault is considered handled
*/
#define AMDGPU_GMC_FAULT_TIMEOUT 5000 ULL
/* XNACK flags */
#define AMDGPU_GMC_XNACK_FLAG_CHAIN BIT(0 )
struct firmware;
enum amdgpu_memory_partition {
UNKNOWN_MEMORY_PARTITION_MODE = 0 ,
AMDGPU_NPS1_PARTITION_MODE = 1 ,
AMDGPU_NPS2_PARTITION_MODE = 2 ,
AMDGPU_NPS3_PARTITION_MODE = 3 ,
AMDGPU_NPS4_PARTITION_MODE = 4 ,
AMDGPU_NPS6_PARTITION_MODE = 6 ,
AMDGPU_NPS8_PARTITION_MODE = 8 ,
};
#define AMDGPU_ALL_NPS_MASK \
(BIT(AMDGPU_NPS1_PARTITION_MODE) | BIT(AMDGPU_NPS2_PARTITION_MODE) | \
BIT(AMDGPU_NPS3_PARTITION_MODE) | BIT(AMDGPU_NPS4_PARTITION_MODE) | \
BIT(AMDGPU_NPS6_PARTITION_MODE) | BIT(AMDGPU_NPS8_PARTITION_MODE))
#define AMDGPU_GMC_INIT_RESET_NPS BIT(0 )
#define AMDGPU_MAX_MEM_RANGES 8
/*
* GMC page fault information
*/
struct amdgpu_gmc_fault {
uint64_t timestamp:48 ;
uint64_t next:AMDGPU_GMC_FAULT_RING_ORDER;
atomic64_t key;
uint64_t timestamp_expiry:48 ;
};
/*
* VMHUB structures , functions & helpers
*/
struct amdgpu_vmhub_funcs {
void (*print_l2_protection_fault_status)(struct amdgpu_device *adev,
uint32_t status);
uint32_t (*get_invalidate_req)(unsigned int vmid, uint32_t flush_type);
};
struct amdgpu_vmhub {
uint32_t ctx0_ptb_addr_lo32;
uint32_t ctx0_ptb_addr_hi32;
uint32_t vm_inv_eng0_sem;
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;
/*
* store the register distances between two continuous context domain
* and invalidation engine .
*/
uint32_t ctx_distance;
uint32_t ctx_addr_distance; /* include LO32/HI32 */
uint32_t eng_distance;
uint32_t eng_addr_distance; /* include LO32/HI32 */
uint32_t vm_cntx_cntl;
uint32_t vm_cntx_cntl_vm_fault;
uint32_t vm_l2_bank_select_reserved_cid2;
uint32_t vm_contexts_disable;
bool sdma_invalidation_workaround;
const struct amdgpu_vmhub_funcs *vmhub_funcs;
};
/*
* 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,
uint32_t vmhub, uint32_t flush_type);
/* flush the vm tlb via pasid */
void (*flush_gpu_tlb_pasid)(struct amdgpu_device *adev, uint16_t pasid,
uint32_t flush_type, bool all_hub,
uint32_t inst);
/* 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);
/* enable/disable PRT support */
void (*set_prt)(struct amdgpu_device *adev, bool enable);
/* map mtype to hardware flags */
uint64_t (*map_mtype)(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);
/* get the pte flags to use for a BO VA mapping */
void (*get_vm_pte)(struct amdgpu_device *adev,
struct amdgpu_bo_va_mapping *mapping,
uint64_t *flags);
/* override per-page pte flags */
void (*override_vm_pte_flags)(struct amdgpu_device *dev,
struct amdgpu_vm *vm,
uint64_t addr, uint64_t *flags);
/* get the amount of memory used by the vbios for pre-OS console */
unsigned int (*get_vbios_fb_size)(struct amdgpu_device *adev);
/* get the DCC buffer alignment */
unsigned int (*get_dcc_alignment)(struct amdgpu_device *adev);
enum amdgpu_memory_partition (*query_mem_partition_mode)(
struct amdgpu_device *adev);
/* Request NPS mode */
int (*request_mem_partition_mode)(struct amdgpu_device *adev,
int nps_mode);
bool (*need_reset_on_init)(struct amdgpu_device *adev);
};
struct amdgpu_mem_partition_info {
union {
struct {
uint32_t fpfn;
uint32_t lpfn;
} range;
struct {
int node;
} numa;
};
uint64_t size;
};
#define INVALID_PFN -1
struct amdgpu_gmc_memrange {
uint64_t base_address;
uint64_t limit_address;
uint32_t flags;
int nid_mask;
};
enum amdgpu_gart_placement {
AMDGPU_GART_PLACEMENT_BEST_FIT = 0 ,
AMDGPU_GART_PLACEMENT_HIGH,
AMDGPU_GART_PLACEMENT_LOW,
};
struct amdgpu_gmc {
/* FB's physical address in MMIO space (for CPU to
* map FB ) . This is different compared to the agp /
* gart / vram_start / end field as the later is from
* GPU ' s view and aper_base is from CPU ' s view .
*/
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;
/* AGP aperture start and end in MC address space
* Driver find a hole in the MC address space
* to place AGP by setting MC_VM_AGP_BOT / TOP registers
* Under VMID0 , logical address = = MC address . AGP
* aperture maps to physical bus or IOVA addressed .
* AGP aperture is used to simulate FB in ZFB case .
* AGP aperture is also used for page table in system
* memory ( mainly for APU ) .
*
*/
u64 agp_size;
u64 agp_start;
u64 agp_end;
/* GART aperture start and end in MC address space
* Driver find a hole in the MC address space
* to place GART by setting VM_CONTEXT0_PAGE_TABLE_START / END_ADDR
* registers
* Under VMID0 , logical address inside GART aperture will
* be translated through gpuvm gart page table to access
* paged system memory
*/
u64 gart_size;
u64 gart_start;
u64 gart_end;
/* Frame buffer aperture of this GPU device. Different from
* fb_start ( see below ) , this only covers the local GPU device .
* If driver uses FB aperture to access FB , driver get fb_start from
* MC_VM_FB_LOCATION_BASE ( set by vbios ) and calculate vram_start
* of this local device by adding an offset inside the XGMI hive .
* If driver uses GART table for VMID0 FB access , driver finds a hole in
* VMID0 ' s virtual address space to place the SYSVM aperture inside
* which the first part is vram and the second part is gart ( covering
* system ram ) .
*/
u64 vram_start;
u64 vram_end;
/* FB region , it's same as local vram region in single GPU, in XGMI
* configuration , this region covers all GPUs in the same hive ,
* each GPU in the hive has the same view of this FB region .
* GPU0 ' s vram starts at offset ( 0 * segment size ) ,
* GPU1 starts at offset ( 1 * segment size ) , etc .
*/
u64 fb_start;
u64 fb_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;
uint8_t vram_vendor;
uint32_t srbm_soft_reset;
bool prt_warning;
uint32_t sdpif_register;
/* 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;
struct kfd_vm_fault_info *vm_fault_info;
atomic_t vm_fault_info_updated;
struct amdgpu_gmc_fault fault_ring[AMDGPU_GMC_FAULT_RING_SIZE];
struct {
uint64_t idx:AMDGPU_GMC_FAULT_RING_ORDER;
} fault_hash[AMDGPU_GMC_FAULT_HASH_SIZE];
uint64_t last_fault:AMDGPU_GMC_FAULT_RING_ORDER;
bool tmz_enabled;
bool is_app_apu;
struct amdgpu_mem_partition_info *mem_partitions;
uint8_t num_mem_partitions;
const struct amdgpu_gmc_funcs *gmc_funcs;
enum amdgpu_memory_partition requested_nps_mode;
uint32_t supported_nps_modes;
uint32_t reset_flags;
struct amdgpu_xgmi xgmi;
struct amdgpu_irq_src ecc_irq;
int noretry;
uint32_t xnack_flags;
uint32_t vmid0_page_table_block_size;
uint32_t vmid0_page_table_depth;
struct amdgpu_bo *pdb0_bo;
/* CPU kmapped address of pdb0*/
void *ptr_pdb0;
/* MALL size */
u64 mall_size;
uint32_t m_half_use;
/* number of UMC instances */
int num_umc;
/* mode2 save restore */
u64 VM_L2_CNTL;
u64 VM_L2_CNTL2;
u64 VM_DUMMY_PAGE_FAULT_CNTL;
u64 VM_DUMMY_PAGE_FAULT_ADDR_LO32;
u64 VM_DUMMY_PAGE_FAULT_ADDR_HI32;
u64 VM_L2_PROTECTION_FAULT_CNTL;
u64 VM_L2_PROTECTION_FAULT_CNTL2;
u64 VM_L2_PROTECTION_FAULT_MM_CNTL3;
u64 VM_L2_PROTECTION_FAULT_MM_CNTL4;
u64 VM_L2_PROTECTION_FAULT_ADDR_LO32;
u64 VM_L2_PROTECTION_FAULT_ADDR_HI32;
u64 VM_DEBUG;
u64 VM_L2_MM_GROUP_RT_CLASSES;
u64 VM_L2_BANK_SELECT_RESERVED_CID;
u64 VM_L2_BANK_SELECT_RESERVED_CID2;
u64 VM_L2_CACHE_PARITY_CNTL;
u64 VM_L2_IH_LOG_CNTL;
u64 VM_CONTEXT_CNTL[16 ];
u64 VM_CONTEXT_PAGE_TABLE_BASE_ADDR_LO32[16 ];
u64 VM_CONTEXT_PAGE_TABLE_BASE_ADDR_HI32[16 ];
u64 VM_CONTEXT_PAGE_TABLE_START_ADDR_LO32[16 ];
u64 VM_CONTEXT_PAGE_TABLE_START_ADDR_HI32[16 ];
u64 VM_CONTEXT_PAGE_TABLE_END_ADDR_LO32[16 ];
u64 VM_CONTEXT_PAGE_TABLE_END_ADDR_HI32[16 ];
u64 MC_VM_MX_L1_TLB_CNTL;
u64 noretry_flags;
bool flush_tlb_needs_extra_type_0;
bool flush_tlb_needs_extra_type_2;
bool flush_pasid_uses_kiq;
};
#define amdgpu_gmc_emit_flush_gpu_tlb(r, vmid, addr) (r)->adev->gmc.gmc_funcs->emit_flush_gpu_tlb((r), (vmid), (addr))
#define amdgpu_gmc_emit_pasid_mapping(r, vmid, pasid) (r)->adev->gmc.gmc_funcs->emit_pasid_mapping((r), (vmid), (pasid))
#define amdgpu_gmc_map_mtype(adev, flags) (adev)->gmc.gmc_funcs->map_mtype((adev),(flags))
#define amdgpu_gmc_get_vm_pde(adev, level, dst, flags) (adev)->gmc.gmc_funcs->get_vm_pde((adev), (level), (dst), (flags))
#define amdgpu_gmc_get_vm_pte(adev, mapping, flags) (adev)->gmc.gmc_funcs->get_vm_pte((adev), (mapping), (flags))
#define amdgpu_gmc_override_vm_pte_flags(adev, vm, addr, pte_flags) \
(adev)->gmc.gmc_funcs->override_vm_pte_flags \
((adev), (vm), (addr), (pte_flags))
#define amdgpu_gmc_get_vbios_fb_size(adev) (adev)->gmc.gmc_funcs->get_vbios_fb_size((adev))
#define amdgpu_gmc_get_dcc_alignment(adev) ({ \
typeof(adev) _adev = (adev); \
_adev->gmc.gmc_funcs->get_dcc_alignment(_adev); \
})
/**
* amdgpu_gmc_vram_full_visible - Check if full VRAM is visible through the BAR
*
* @ adev : amdgpu_device pointer
*
* Returns :
* True if full VRAM is visible through the BAR
*/
static inline bool amdgpu_gmc_vram_full_visible(struct amdgpu_gmc *gmc)
{
WARN_ON(gmc->real_vram_size < gmc->visible_vram_size);
return (gmc->real_vram_size == gmc->visible_vram_size);
}
/**
* amdgpu_gmc_sign_extend - sign extend the given gmc address
*
* @ addr : address to extend
*/
static inline uint64_t amdgpu_gmc_sign_extend(uint64_t addr)
{
if (addr >= AMDGPU_GMC_HOLE_START)
addr |= AMDGPU_GMC_HOLE_END;
return addr;
}
bool amdgpu_gmc_is_pdb0_enabled(struct amdgpu_device *adev);
int amdgpu_gmc_pdb0_alloc(struct amdgpu_device *adev);
void amdgpu_gmc_get_pde_for_bo(struct amdgpu_bo *bo, int level,
uint64_t *addr, uint64_t *flags);
int amdgpu_gmc_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr,
uint32_t gpu_page_idx, uint64_t addr,
uint64_t flags);
uint64_t amdgpu_gmc_pd_addr(struct amdgpu_bo *bo);
uint64_t amdgpu_gmc_agp_addr(struct ttm_buffer_object *bo);
void amdgpu_gmc_sysvm_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc);
void amdgpu_gmc_vram_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc,
u64 base);
void amdgpu_gmc_gart_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc,
enum amdgpu_gart_placement gart_placement);
void amdgpu_gmc_agp_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc);
void amdgpu_gmc_set_agp_default(struct amdgpu_device *adev,
struct amdgpu_gmc *mc);
bool amdgpu_gmc_filter_faults(struct amdgpu_device *adev,
struct amdgpu_ih_ring *ih, uint64_t addr,
uint16_t pasid, uint64_t timestamp);
void amdgpu_gmc_filter_faults_remove(struct amdgpu_device *adev, uint64_t addr,
uint16_t pasid);
int amdgpu_gmc_ras_sw_init(struct amdgpu_device *adev);
int amdgpu_gmc_ras_late_init(struct amdgpu_device *adev);
void amdgpu_gmc_ras_fini(struct amdgpu_device *adev);
int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev);
void amdgpu_gmc_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
uint32_t vmhub, uint32_t flush_type);
int amdgpu_gmc_flush_gpu_tlb_pasid(struct amdgpu_device *adev, uint16_t pasid,
uint32_t flush_type, bool all_hub,
uint32_t inst);
void amdgpu_gmc_fw_reg_write_reg_wait(struct amdgpu_device *adev,
uint32_t reg0, uint32_t reg1,
uint32_t ref, uint32_t mask,
uint32_t xcc_inst);
extern void amdgpu_gmc_tmz_set(struct amdgpu_device *adev);
extern void amdgpu_gmc_noretry_set(struct amdgpu_device *adev);
extern void
amdgpu_gmc_set_vm_fault_masks(struct amdgpu_device *adev, int hub_type,
bool enable);
void amdgpu_gmc_get_vbios_allocations(struct amdgpu_device *adev);
void amdgpu_gmc_init_pdb0(struct amdgpu_device *adev);
uint64_t amdgpu_gmc_vram_mc2pa(struct amdgpu_device *adev, uint64_t mc_addr);
uint64_t amdgpu_gmc_vram_pa(struct amdgpu_device *adev, struct amdgpu_bo *bo);
int amdgpu_gmc_vram_checking(struct amdgpu_device *adev);
int amdgpu_gmc_sysfs_init(struct amdgpu_device *adev);
void amdgpu_gmc_sysfs_fini(struct amdgpu_device *adev);
int amdgpu_gmc_get_nps_memranges(struct amdgpu_device *adev,
struct amdgpu_mem_partition_info *mem_ranges,
uint8_t *exp_ranges);
int amdgpu_gmc_request_memory_partition(struct amdgpu_device *adev,
int nps_mode);
void amdgpu_gmc_prepare_nps_mode_change(struct amdgpu_device *adev);
bool amdgpu_gmc_need_reset_on_init(struct amdgpu_device *adev);
enum amdgpu_memory_partition
amdgpu_gmc_get_vf_memory_partition(struct amdgpu_device *adev);
enum amdgpu_memory_partition
amdgpu_gmc_get_memory_partition(struct amdgpu_device *adev, u32 *supp_modes);
enum amdgpu_memory_partition
amdgpu_gmc_query_memory_partition(struct amdgpu_device *adev);
int amdgpu_gmc_init_mem_ranges(struct amdgpu_device *adev);
void amdgpu_gmc_init_sw_mem_ranges(struct amdgpu_device *adev,
struct amdgpu_mem_partition_info *mem_ranges);
#endif
Messung V0.5 in Prozent C=92 H=100 G=95
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-02)
¤
*© Formatika GbR, Deutschland
2026-10-10
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