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JustOS/linux-6.13/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c
justuser 02e73b8cd9 up
2025-01-24 17:00:19 +03:00

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/*
* Copyright 2023 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.
*
*/
#include <linux/firmware.h>
#include <linux/pci.h>
#include <drm/drm_cache.h>
#include "amdgpu.h"
#include "amdgpu_atomfirmware.h"
#include "gmc_v12_0.h"
#include "athub/athub_4_1_0_sh_mask.h"
#include "athub/athub_4_1_0_offset.h"
#include "oss/osssys_7_0_0_offset.h"
#include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
#include "soc24_enum.h"
#include "soc24.h"
#include "soc15d.h"
#include "soc15_common.h"
#include "nbif_v6_3_1.h"
#include "gfxhub_v12_0.h"
#include "mmhub_v4_1_0.h"
#include "athub_v4_1_0.h"
static int gmc_v12_0_ecc_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
return 0;
}
static int gmc_v12_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src, unsigned type,
enum amdgpu_interrupt_state state)
{
switch (state) {
case AMDGPU_IRQ_STATE_DISABLE:
/* MM HUB */
amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB0(0), false);
/* GFX HUB */
/* This works because this interrupt is only
* enabled at init/resume and disabled in
* fini/suspend, so the overall state doesn't
* change over the course of suspend/resume.
*/
if (!adev->in_s0ix)
amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB(0), false);
break;
case AMDGPU_IRQ_STATE_ENABLE:
/* MM HUB */
amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB0(0), true);
/* GFX HUB */
/* This works because this interrupt is only
* enabled at init/resume and disabled in
* fini/suspend, so the overall state doesn't
* change over the course of suspend/resume.
*/
if (!adev->in_s0ix)
amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB(0), true);
break;
default:
break;
}
return 0;
}
static int gmc_v12_0_process_interrupt(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
struct amdgpu_vmhub *hub;
uint32_t status = 0;
u64 addr;
addr = (u64)entry->src_data[0] << 12;
addr |= ((u64)entry->src_data[1] & 0xf) << 44;
if (entry->client_id == SOC21_IH_CLIENTID_VMC)
hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
else
hub = &adev->vmhub[AMDGPU_GFXHUB(0)];
if (!amdgpu_sriov_vf(adev)) {
/*
* Issue a dummy read to wait for the status register to
* be updated to avoid reading an incorrect value due to
* the new fast GRBM interface.
*/
if (entry->vmid_src == AMDGPU_GFXHUB(0))
RREG32(hub->vm_l2_pro_fault_status);
status = RREG32(hub->vm_l2_pro_fault_status);
WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status,
entry->vmid_src ? AMDGPU_MMHUB0(0) : AMDGPU_GFXHUB(0));
}
if (printk_ratelimit()) {
struct amdgpu_task_info *task_info;
dev_err(adev->dev,
"[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u)\n",
entry->vmid_src ? "mmhub" : "gfxhub",
entry->src_id, entry->ring_id, entry->vmid, entry->pasid);
task_info = amdgpu_vm_get_task_info_pasid(adev, entry->pasid);
if (task_info) {
dev_err(adev->dev,
" in process %s pid %d thread %s pid %d)\n",
task_info->process_name, task_info->tgid,
task_info->task_name, task_info->pid);
amdgpu_vm_put_task_info(task_info);
}
dev_err(adev->dev, " in page starting at address 0x%016llx from client %d\n",
addr, entry->client_id);
/* Only print L2 fault status if the status register could be read and
* contains useful information
*/
if (status != 0)
hub->vmhub_funcs->print_l2_protection_fault_status(adev, status);
}
return 0;
}
static const struct amdgpu_irq_src_funcs gmc_v12_0_irq_funcs = {
.set = gmc_v12_0_vm_fault_interrupt_state,
.process = gmc_v12_0_process_interrupt,
};
static const struct amdgpu_irq_src_funcs gmc_v12_0_ecc_funcs = {
.set = gmc_v12_0_ecc_interrupt_state,
.process = amdgpu_umc_process_ecc_irq,
};
static void gmc_v12_0_set_irq_funcs(struct amdgpu_device *adev)
{
adev->gmc.vm_fault.num_types = 1;
adev->gmc.vm_fault.funcs = &gmc_v12_0_irq_funcs;
if (!amdgpu_sriov_vf(adev)) {
adev->gmc.ecc_irq.num_types = 1;
adev->gmc.ecc_irq.funcs = &gmc_v12_0_ecc_funcs;
}
}
/**
* gmc_v12_0_use_invalidate_semaphore - judge whether to use semaphore
*
* @adev: amdgpu_device pointer
* @vmhub: vmhub type
*
*/
static bool gmc_v12_0_use_invalidate_semaphore(struct amdgpu_device *adev,
uint32_t vmhub)
{
return ((vmhub == AMDGPU_MMHUB0(0)) &&
(!amdgpu_sriov_vf(adev)));
}
static bool gmc_v12_0_get_vmid_pasid_mapping_info(
struct amdgpu_device *adev,
uint8_t vmid, uint16_t *p_pasid)
{
*p_pasid = RREG32(SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid) & 0xffff;
return !!(*p_pasid);
}
/*
* GART
* VMID 0 is the physical GPU addresses as used by the kernel.
* VMIDs 1-15 are used for userspace clients and are handled
* by the amdgpu vm/hsa code.
*/
static void gmc_v12_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
unsigned int vmhub, uint32_t flush_type)
{
bool use_semaphore = gmc_v12_0_use_invalidate_semaphore(adev, vmhub);
struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
u32 tmp;
/* Use register 17 for GART */
const unsigned eng = 17;
unsigned int i;
unsigned char hub_ip = 0;
hub_ip = (vmhub == AMDGPU_GFXHUB(0)) ?
GC_HWIP : MMHUB_HWIP;
spin_lock(&adev->gmc.invalidate_lock);
/*
* It may lose gpuvm invalidate acknowldege state across power-gating
* off cycle, add semaphore acquire before invalidation and semaphore
* release after invalidation to avoid entering power gated state
* to WA the Issue
*/
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore) {
for (i = 0; i < adev->usec_timeout; i++) {
/* a read return value of 1 means semaphore acuqire */
tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
hub->eng_distance * eng, hub_ip);
if (tmp & 0x1)
break;
udelay(1);
}
if (i >= adev->usec_timeout)
dev_err(adev->dev,
"Timeout waiting for sem acquire in VM flush!\n");
}
WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_req + hub->eng_distance * eng, inv_req, hub_ip);
/* Wait for ACK with a delay.*/
for (i = 0; i < adev->usec_timeout; i++) {
tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_ack +
hub->eng_distance * eng, hub_ip);
tmp &= 1 << vmid;
if (tmp)
break;
udelay(1);
}
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore)
/*
* add semaphore release after invalidation,
* write with 0 means semaphore release
*/
WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
hub->eng_distance * eng, 0, hub_ip);
/* Issue additional private vm invalidation to MMHUB */
if ((vmhub != AMDGPU_GFXHUB(0)) &&
(hub->vm_l2_bank_select_reserved_cid2) &&
!amdgpu_sriov_vf(adev)) {
inv_req = RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2);
/* bit 25: RSERVED_CACHE_PRIVATE_INVALIDATION */
inv_req |= (1 << 25);
/* Issue private invalidation */
WREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2, inv_req);
/* Read back to ensure invalidation is done*/
RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2);
}
spin_unlock(&adev->gmc.invalidate_lock);
if (i < adev->usec_timeout)
return;
dev_err(adev->dev, "Timeout waiting for VM flush ACK!\n");
}
/**
* gmc_v12_0_flush_gpu_tlb - gart tlb flush callback
*
* @adev: amdgpu_device pointer
* @vmid: vm instance to flush
* @vmhub: which hub to flush
* @flush_type: the flush type
*
* Flush the TLB for the requested page table.
*/
static void gmc_v12_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
uint32_t vmhub, uint32_t flush_type)
{
if ((vmhub == AMDGPU_GFXHUB(0)) && !adev->gfx.is_poweron)
return;
/* flush hdp cache */
adev->hdp.funcs->flush_hdp(adev, NULL);
/* This is necessary for SRIOV as well as for GFXOFF to function
* properly under bare metal
*/
if ((adev->gfx.kiq[0].ring.sched.ready || adev->mes.ring[0].sched.ready) &&
(amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
const unsigned eng = 17;
u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
u32 req = hub->vm_inv_eng0_req + hub->eng_distance * eng;
u32 ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng;
amdgpu_gmc_fw_reg_write_reg_wait(adev, req, ack, inv_req,
1 << vmid, GET_INST(GC, 0));
return;
}
mutex_lock(&adev->mman.gtt_window_lock);
gmc_v12_0_flush_vm_hub(adev, vmid, vmhub, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;
}
/**
* gmc_v12_0_flush_gpu_tlb_pasid - tlb flush via pasid
*
* @adev: amdgpu_device pointer
* @pasid: pasid to be flush
* @flush_type: the flush type
* @all_hub: flush all hubs
* @inst: is used to select which instance of KIQ to use for the invalidation
*
* Flush the TLB for the requested pasid.
*/
static void gmc_v12_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
uint16_t pasid, uint32_t flush_type,
bool all_hub, uint32_t inst)
{
uint16_t queried;
int vmid, i;
for (vmid = 1; vmid < 16; vmid++) {
bool valid;
valid = gmc_v12_0_get_vmid_pasid_mapping_info(adev, vmid,
&queried);
if (!valid || queried != pasid)
continue;
if (all_hub) {
for_each_set_bit(i, adev->vmhubs_mask,
AMDGPU_MAX_VMHUBS)
gmc_v12_0_flush_gpu_tlb(adev, vmid, i,
flush_type);
} else {
gmc_v12_0_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB(0),
flush_type);
}
}
}
static uint64_t gmc_v12_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
unsigned vmid, uint64_t pd_addr)
{
bool use_semaphore = gmc_v12_0_use_invalidate_semaphore(ring->adev, ring->vm_hub);
struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
uint32_t req = hub->vmhub_funcs->get_invalidate_req(vmid, 0);
unsigned eng = ring->vm_inv_eng;
/*
* It may lose gpuvm invalidate acknowldege state across power-gating
* off cycle, add semaphore acquire before invalidation and semaphore
* release after invalidation to avoid entering power gated state
* to WA the Issue
*/
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore)
/* a read return value of 1 means semaphore acuqire */
amdgpu_ring_emit_reg_wait(ring,
hub->vm_inv_eng0_sem +
hub->eng_distance * eng, 0x1, 0x1);
amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 +
(hub->ctx_addr_distance * vmid),
lower_32_bits(pd_addr));
amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 +
(hub->ctx_addr_distance * vmid),
upper_32_bits(pd_addr));
amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req +
hub->eng_distance * eng,
hub->vm_inv_eng0_ack +
hub->eng_distance * eng,
req, 1 << vmid);
/* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
if (use_semaphore)
/*
* add semaphore release after invalidation,
* write with 0 means semaphore release
*/
amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_sem +
hub->eng_distance * eng, 0);
return pd_addr;
}
static void gmc_v12_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
unsigned pasid)
{
struct amdgpu_device *adev = ring->adev;
uint32_t reg;
/* MES fw manages IH_VMID_x_LUT updating */
if (ring->is_mes_queue)
return;
if (ring->vm_hub == AMDGPU_GFXHUB(0))
reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid;
else
reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT_MM) + vmid;
amdgpu_ring_emit_wreg(ring, reg, pasid);
}
/*
* PTE format:
* 63 P
* 62:59 reserved
* 58 D
* 57 G
* 56 T
* 55:54 M
* 53:52 SW
* 51:48 reserved for future
* 47:12 4k physical page base address
* 11:7 fragment
* 6 write
* 5 read
* 4 exe
* 3 Z
* 2 snooped
* 1 system
* 0 valid
*
* PDE format:
* 63 P
* 62:58 block fragment size
* 57 reserved
* 56 A
* 55:54 M
* 53:52 reserved
* 51:48 reserved for future
* 47:6 physical base address of PD or PTE
* 5:3 reserved
* 2 C
* 1 system
* 0 valid
*/
static uint64_t gmc_v12_0_map_mtype(struct amdgpu_device *adev, uint32_t flags)
{
switch (flags) {
case AMDGPU_VM_MTYPE_DEFAULT:
return AMDGPU_PTE_MTYPE_GFX12(0ULL, MTYPE_NC);
case AMDGPU_VM_MTYPE_NC:
return AMDGPU_PTE_MTYPE_GFX12(0ULL, MTYPE_NC);
case AMDGPU_VM_MTYPE_UC:
return AMDGPU_PTE_MTYPE_GFX12(0ULL, MTYPE_UC);
default:
return AMDGPU_PTE_MTYPE_GFX12(0ULL, MTYPE_NC);
}
}
static void gmc_v12_0_get_vm_pde(struct amdgpu_device *adev, int level,
uint64_t *addr, uint64_t *flags)
{
if (!(*flags & AMDGPU_PDE_PTE_GFX12) && !(*flags & AMDGPU_PTE_SYSTEM))
*addr = adev->vm_manager.vram_base_offset + *addr -
adev->gmc.vram_start;
BUG_ON(*addr & 0xFFFF00000000003FULL);
if (!adev->gmc.translate_further)
return;
if (level == AMDGPU_VM_PDB1) {
/* Set the block fragment size */
if (!(*flags & AMDGPU_PDE_PTE_GFX12))
*flags |= AMDGPU_PDE_BFS_GFX12(0x9);
} else if (level == AMDGPU_VM_PDB0) {
if (*flags & AMDGPU_PDE_PTE_GFX12)
*flags &= ~AMDGPU_PDE_PTE_GFX12;
}
}
static void gmc_v12_0_get_vm_pte(struct amdgpu_device *adev,
struct amdgpu_bo_va_mapping *mapping,
uint64_t *flags)
{
struct amdgpu_bo *bo = mapping->bo_va->base.bo;
struct amdgpu_device *bo_adev;
bool coherent, is_system;
*flags &= ~AMDGPU_PTE_EXECUTABLE;
*flags |= mapping->flags & AMDGPU_PTE_EXECUTABLE;
*flags &= ~AMDGPU_PTE_MTYPE_GFX12_MASK;
*flags |= (mapping->flags & AMDGPU_PTE_MTYPE_GFX12_MASK);
if (mapping->flags & AMDGPU_PTE_PRT_GFX12) {
*flags |= AMDGPU_PTE_PRT_GFX12;
*flags |= AMDGPU_PTE_SNOOPED;
*flags |= AMDGPU_PTE_SYSTEM;
*flags |= AMDGPU_PTE_IS_PTE;
*flags &= ~AMDGPU_PTE_VALID;
}
if (!bo)
return;
if (bo->flags & (AMDGPU_GEM_CREATE_COHERENT |
AMDGPU_GEM_CREATE_UNCACHED))
*flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_UC);
bo_adev = amdgpu_ttm_adev(bo->tbo.bdev);
coherent = bo->flags & AMDGPU_GEM_CREATE_COHERENT;
is_system = (bo->tbo.resource->mem_type == TTM_PL_TT) ||
(bo->tbo.resource->mem_type == AMDGPU_PL_PREEMPT);
if (bo && bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC)
*flags |= AMDGPU_PTE_DCC;
/* WA for HW bug */
if (is_system || ((bo_adev != adev) && coherent))
*flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_NC);
}
static unsigned gmc_v12_0_get_vbios_fb_size(struct amdgpu_device *adev)
{
return 0;
}
static unsigned int gmc_v12_0_get_dcc_alignment(struct amdgpu_device *adev)
{
unsigned int max_tex_channel_caches, alignment;
if (amdgpu_ip_version(adev, GC_HWIP, 0) != IP_VERSION(12, 0, 0) &&
amdgpu_ip_version(adev, GC_HWIP, 0) != IP_VERSION(12, 0, 1))
return 0;
max_tex_channel_caches = adev->gfx.config.max_texture_channel_caches;
if (is_power_of_2(max_tex_channel_caches))
alignment = (unsigned int)(max_tex_channel_caches / SZ_4);
else
alignment = roundup_pow_of_two(max_tex_channel_caches);
return (unsigned int)(alignment * max_tex_channel_caches * SZ_1K);
}
static const struct amdgpu_gmc_funcs gmc_v12_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v12_0_flush_gpu_tlb,
.flush_gpu_tlb_pasid = gmc_v12_0_flush_gpu_tlb_pasid,
.emit_flush_gpu_tlb = gmc_v12_0_emit_flush_gpu_tlb,
.emit_pasid_mapping = gmc_v12_0_emit_pasid_mapping,
.map_mtype = gmc_v12_0_map_mtype,
.get_vm_pde = gmc_v12_0_get_vm_pde,
.get_vm_pte = gmc_v12_0_get_vm_pte,
.get_vbios_fb_size = gmc_v12_0_get_vbios_fb_size,
.get_dcc_alignment = gmc_v12_0_get_dcc_alignment,
};
static void gmc_v12_0_set_gmc_funcs(struct amdgpu_device *adev)
{
adev->gmc.gmc_funcs = &gmc_v12_0_gmc_funcs;
}
static void gmc_v12_0_set_umc_funcs(struct amdgpu_device *adev)
{
}
static void gmc_v12_0_set_mmhub_funcs(struct amdgpu_device *adev)
{
switch (amdgpu_ip_version(adev, MMHUB_HWIP, 0)) {
case IP_VERSION(4, 1, 0):
adev->mmhub.funcs = &mmhub_v4_1_0_funcs;
break;
default:
break;
}
}
static void gmc_v12_0_set_gfxhub_funcs(struct amdgpu_device *adev)
{
switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
case IP_VERSION(12, 0, 0):
case IP_VERSION(12, 0, 1):
adev->gfxhub.funcs = &gfxhub_v12_0_funcs;
break;
default:
break;
}
}
static int gmc_v12_0_early_init(struct amdgpu_ip_block *ip_block)
{
struct amdgpu_device *adev = ip_block->adev;
gmc_v12_0_set_gfxhub_funcs(adev);
gmc_v12_0_set_mmhub_funcs(adev);
gmc_v12_0_set_gmc_funcs(adev);
gmc_v12_0_set_irq_funcs(adev);
gmc_v12_0_set_umc_funcs(adev);
adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
adev->gmc.shared_aperture_end =
adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
adev->gmc.private_aperture_start = 0x1000000000000000ULL;
adev->gmc.private_aperture_end =
adev->gmc.private_aperture_start + (4ULL << 30) - 1;
return 0;
}
static int gmc_v12_0_late_init(struct amdgpu_ip_block *ip_block)
{
struct amdgpu_device *adev = ip_block->adev;
int r;
r = amdgpu_gmc_allocate_vm_inv_eng(adev);
if (r)
return r;
r = amdgpu_gmc_ras_late_init(adev);
if (r)
return r;
return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
}
static void gmc_v12_0_vram_gtt_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc)
{
u64 base = 0;
base = adev->mmhub.funcs->get_fb_location(adev);
amdgpu_gmc_set_agp_default(adev, mc);
amdgpu_gmc_vram_location(adev, &adev->gmc, base);
amdgpu_gmc_gart_location(adev, mc, AMDGPU_GART_PLACEMENT_LOW);
if (!amdgpu_sriov_vf(adev) && (amdgpu_agp == 1))
amdgpu_gmc_agp_location(adev, mc);
/* base offset of vram pages */
if (amdgpu_sriov_vf(adev))
adev->vm_manager.vram_base_offset = 0;
else
adev->vm_manager.vram_base_offset = adev->mmhub.funcs->get_mc_fb_offset(adev);
}
/**
* gmc_v12_0_mc_init - initialize the memory controller driver params
*
* @adev: amdgpu_device pointer
*
* Look up the amount of vram, vram width, and decide how to place
* vram and gart within the GPU's physical address space.
* Returns 0 for success.
*/
static int gmc_v12_0_mc_init(struct amdgpu_device *adev)
{
int r;
/* size in MB on si */
adev->gmc.mc_vram_size =
adev->nbio.funcs->get_memsize(adev) * 1024ULL * 1024ULL;
adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
if (!(adev->flags & AMD_IS_APU)) {
r = amdgpu_device_resize_fb_bar(adev);
if (r)
return r;
}
adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
#ifdef CONFIG_X86_64
if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) {
adev->gmc.aper_base = adev->mmhub.funcs->get_mc_fb_offset(adev);
adev->gmc.aper_size = adev->gmc.real_vram_size;
}
#endif
/* In case the PCI BAR is larger than the actual amount of vram */
adev->gmc.visible_vram_size = adev->gmc.aper_size;
if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
/* set the gart size */
if (amdgpu_gart_size == -1) {
adev->gmc.gart_size = 512ULL << 20;
} else
adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
gmc_v12_0_vram_gtt_location(adev, &adev->gmc);
return 0;
}
static int gmc_v12_0_gart_init(struct amdgpu_device *adev)
{
int r;
if (adev->gart.bo) {
WARN(1, "PCIE GART already initialized\n");
return 0;
}
/* Initialize common gart structure */
r = amdgpu_gart_init(adev);
if (r)
return r;
adev->gart.table_size = adev->gart.num_gpu_pages * 8;
adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE_GFX12(0ULL, MTYPE_UC) |
AMDGPU_PTE_EXECUTABLE |
AMDGPU_PTE_IS_PTE;
return amdgpu_gart_table_vram_alloc(adev);
}
static int gmc_v12_0_sw_init(struct amdgpu_ip_block *ip_block)
{
int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
struct amdgpu_device *adev = ip_block->adev;
adev->mmhub.funcs->init(adev);
adev->gfxhub.funcs->init(adev);
spin_lock_init(&adev->gmc.invalidate_lock);
r = amdgpu_atomfirmware_get_vram_info(adev,
&vram_width, &vram_type, &vram_vendor);
adev->gmc.vram_width = vram_width;
adev->gmc.vram_type = vram_type;
adev->gmc.vram_vendor = vram_vendor;
switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
case IP_VERSION(12, 0, 0):
case IP_VERSION(12, 0, 1):
set_bit(AMDGPU_GFXHUB(0), adev->vmhubs_mask);
set_bit(AMDGPU_MMHUB0(0), adev->vmhubs_mask);
/*
* To fulfill 4-level page support,
* vm size is 256TB (48bit), maximum size,
* block size 512 (9bit)
*/
amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
break;
default:
break;
}
/* This interrupt is VMC page fault.*/
r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_VMC,
VMC_1_0__SRCID__VM_FAULT,
&adev->gmc.vm_fault);
if (r)
return r;
r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_GFX,
UTCL2_1_0__SRCID__FAULT,
&adev->gmc.vm_fault);
if (r)
return r;
if (!amdgpu_sriov_vf(adev)) {
/* interrupt sent to DF. */
r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_DF, 0,
&adev->gmc.ecc_irq);
if (r)
return r;
}
/*
* Set the internal MC address mask This is the max address of the GPU's
* internal address space.
*/
adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
if (r) {
printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
return r;
}
adev->need_swiotlb = drm_need_swiotlb(44);
r = gmc_v12_0_mc_init(adev);
if (r)
return r;
amdgpu_gmc_get_vbios_allocations(adev);
/* Memory manager */
r = amdgpu_bo_init(adev);
if (r)
return r;
r = gmc_v12_0_gart_init(adev);
if (r)
return r;
/*
* number of VMs
* VMID 0 is reserved for System
* amdgpu graphics/compute will use VMIDs 1-7
* amdkfd will use VMIDs 8-15
*/
adev->vm_manager.first_kfd_vmid = 8;
amdgpu_vm_manager_init(adev);
return 0;
}
/**
* gmc_v12_0_gart_fini - vm fini callback
*
* @adev: amdgpu_device pointer
*
* Tears down the driver GART/VM setup (CIK).
*/
static void gmc_v12_0_gart_fini(struct amdgpu_device *adev)
{
amdgpu_gart_table_vram_free(adev);
}
static int gmc_v12_0_sw_fini(struct amdgpu_ip_block *ip_block)
{
struct amdgpu_device *adev = ip_block->adev;
amdgpu_vm_manager_fini(adev);
gmc_v12_0_gart_fini(adev);
amdgpu_gem_force_release(adev);
amdgpu_bo_fini(adev);
return 0;
}
static void gmc_v12_0_init_golden_registers(struct amdgpu_device *adev)
{
}
/**
* gmc_v12_0_gart_enable - gart enable
*
* @adev: amdgpu_device pointer
*/
static int gmc_v12_0_gart_enable(struct amdgpu_device *adev)
{
int r;
bool value;
if (adev->gart.bo == NULL) {
dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
return -EINVAL;
}
amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
r = adev->mmhub.funcs->gart_enable(adev);
if (r)
return r;
/* Flush HDP after it is initialized */
adev->hdp.funcs->flush_hdp(adev, NULL);
value = (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) ?
false : true;
adev->mmhub.funcs->set_fault_enable_default(adev, value);
gmc_v12_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB0(0), 0);
dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
(unsigned)(adev->gmc.gart_size >> 20),
(unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo));
return 0;
}
static int gmc_v12_0_hw_init(struct amdgpu_ip_block *ip_block)
{
int r;
struct amdgpu_device *adev = ip_block->adev;
/* The sequence of these two function calls matters.*/
gmc_v12_0_init_golden_registers(adev);
r = gmc_v12_0_gart_enable(adev);
if (r)
return r;
if (adev->umc.funcs && adev->umc.funcs->init_registers)
adev->umc.funcs->init_registers(adev);
return 0;
}
/**
* gmc_v12_0_gart_disable - gart disable
*
* @adev: amdgpu_device pointer
*
* This disables all VM page table.
*/
static void gmc_v12_0_gart_disable(struct amdgpu_device *adev)
{
adev->mmhub.funcs->gart_disable(adev);
}
static int gmc_v12_0_hw_fini(struct amdgpu_ip_block *ip_block)
{
struct amdgpu_device *adev = ip_block->adev;
if (amdgpu_sriov_vf(adev)) {
/* full access mode, so don't touch any GMC register */
DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
return 0;
}
amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
if (adev->gmc.ecc_irq.funcs &&
amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__UMC))
amdgpu_irq_put(adev, &adev->gmc.ecc_irq, 0);
gmc_v12_0_gart_disable(adev);
return 0;
}
static int gmc_v12_0_suspend(struct amdgpu_ip_block *ip_block)
{
gmc_v12_0_hw_fini(ip_block);
return 0;
}
static int gmc_v12_0_resume(struct amdgpu_ip_block *ip_block)
{
int r;
r = gmc_v12_0_hw_init(ip_block);
if (r)
return r;
amdgpu_vmid_reset_all(ip_block->adev);
return 0;
}
static bool gmc_v12_0_is_idle(void *handle)
{
/* MC is always ready in GMC v11.*/
return true;
}
static int gmc_v12_0_wait_for_idle(struct amdgpu_ip_block *ip_block)
{
/* There is no need to wait for MC idle in GMC v11.*/
return 0;
}
static int gmc_v12_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = adev->mmhub.funcs->set_clockgating(adev, state);
if (r)
return r;
return athub_v4_1_0_set_clockgating(adev, state);
}
static void gmc_v12_0_get_clockgating_state(void *handle, u64 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->mmhub.funcs->get_clockgating(adev, flags);
athub_v4_1_0_get_clockgating(adev, flags);
}
static int gmc_v12_0_set_powergating_state(void *handle,
enum amd_powergating_state state)
{
return 0;
}
const struct amd_ip_funcs gmc_v12_0_ip_funcs = {
.name = "gmc_v12_0",
.early_init = gmc_v12_0_early_init,
.sw_init = gmc_v12_0_sw_init,
.hw_init = gmc_v12_0_hw_init,
.late_init = gmc_v12_0_late_init,
.sw_fini = gmc_v12_0_sw_fini,
.hw_fini = gmc_v12_0_hw_fini,
.suspend = gmc_v12_0_suspend,
.resume = gmc_v12_0_resume,
.is_idle = gmc_v12_0_is_idle,
.wait_for_idle = gmc_v12_0_wait_for_idle,
.set_clockgating_state = gmc_v12_0_set_clockgating_state,
.set_powergating_state = gmc_v12_0_set_powergating_state,
.get_clockgating_state = gmc_v12_0_get_clockgating_state,
};
const struct amdgpu_ip_block_version gmc_v12_0_ip_block = {
.type = AMD_IP_BLOCK_TYPE_GMC,
.major = 12,
.minor = 0,
.rev = 0,
.funcs = &gmc_v12_0_ip_funcs,
};
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