linux_dsm_epyc7002/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h
Alex Deucher 6fdd68b14a drm/amdgpu/gmc9: Adjust GART and AGP location with xgmi offset (v2)
On hives with xgmi enabled, the fb_location aperture is a size
which defines the total framebuffer size of all nodes in the
hive.  Each GPU in the hive has the same view via the fb_location
aperture.  GPU0 starts at offset (0 * segment size),
GPU1 starts at offset (1 * segment size), etc.

For access to local vram on each GPU, we need to take this offset into
account. This including on setting up GPUVM page table and GART table

v2: squash in "drm/amdgpu: Init correct fb region for none XGMI configuration"

Acked-by: Huang Rui <ray.huang@amd.com>
Acked-by: Slava Abramov <slava.abramov@amd.com>
Signed-off-by: Shaoyun Liu <Shaoyun.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
2018-09-10 22:47:34 -05:00

199 lines
6.4 KiB
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"
/* VA hole for 48bit addresses on Vega10 */
#define AMDGPU_GMC_HOLE_START 0x0000800000000000ULL
#define AMDGPU_GMC_HOLE_END 0xffff800000000000ULL
/*
* Hardware is programmed as if the hole doesn't exists with start and end
* address values.
*
* This mask is used to remove the upper 16bits of the VA and so come up with
* the linear addr value.
*/
#define AMDGPU_GMC_HOLE_MASK 0x0000ffffffffffffULL
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_xgmi {
/* from psp */
u64 device_id;
u64 hive_id;
/* fixed per family */
u64 node_segment_size;
/* physical node (0-3) */
unsigned physical_node_id;
/* number of nodes (0-4) */
unsigned num_physical_nodes;
};
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 agp_size;
u64 agp_start;
u64 agp_end;
u64 gart_size;
u64 gart_start;
u64 gart_end;
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;
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;
struct kfd_vm_fault_info *vm_fault_info;
atomic_t vm_fault_info_updated;
const struct amdgpu_gmc_funcs *gmc_funcs;
struct amdgpu_xgmi xgmi;
};
#define amdgpu_gmc_flush_gpu_tlb(adev, vmid) (adev)->gmc.gmc_funcs->flush_gpu_tlb((adev), (vmid))
#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_set_pte_pde(adev, pt, idx, addr, flags) (adev)->gmc.gmc_funcs->set_pte_pde((adev), (pt), (idx), (addr), (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_pte_flags(adev, flags) (adev)->gmc.gmc_funcs->get_vm_pte_flags((adev),(flags))
/**
* 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;
}
void amdgpu_gmc_get_pde_for_bo(struct amdgpu_bo *bo, int level,
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_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);
void amdgpu_gmc_agp_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc);
#endif