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linuxdebug/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c

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null pointer error
2024-07-16 15:50:57 +02:00
/*
* Copyright 2019 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_v10_0.h"
#include "umc_v8_7.h"
#include "athub/athub_2_0_0_sh_mask.h"
#include "athub/athub_2_0_0_offset.h"
#include "dcn/dcn_2_0_0_offset.h"
#include "dcn/dcn_2_0_0_sh_mask.h"
#include "oss/osssys_5_0_0_offset.h"
#include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
#include "navi10_enum.h"
#include "soc15.h"
#include "soc15d.h"
#include "soc15_common.h"
#include "nbio_v2_3.h"
#include "gfxhub_v2_0.h"
#include "gfxhub_v2_1.h"
#include "mmhub_v2_0.h"
#include "mmhub_v2_3.h"
#include "athub_v2_0.h"
#include "athub_v2_1.h"
#include "amdgpu_reset.h"
#if 0
static const struct soc15_reg_golden golden_settings_navi10_hdp[] =
{
/* TODO add golden setting for hdp */
};
#endif
static int gmc_v10_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_v10_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_MMHUB_0, false);
/* GFX HUB */
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_MMHUB_0, true);
/* GFX HUB */
amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, true);
break;
default:
break;
}
return 0;
}
static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
bool retry_fault = !!(entry->src_data[1] & 0x80);
bool write_fault = !!(entry->src_data[1] & 0x20);
struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src];
struct amdgpu_task_info task_info;
uint32_t status = 0;
u64 addr;
addr = (u64)entry->src_data[0] << 12;
addr |= ((u64)entry->src_data[1] & 0xf) << 44;
if (retry_fault) {
/* Returning 1 here also prevents sending the IV to the KFD */
/* Process it onyl if it's the first fault for this address */
if (entry->ih != &adev->irq.ih_soft &&
amdgpu_gmc_filter_faults(adev, entry->ih, addr, entry->pasid,
entry->timestamp))
return 1;
/* Delegate it to a different ring if the hardware hasn't
* already done it.
*/
if (entry->ih == &adev->irq.ih) {
amdgpu_irq_delegate(adev, entry, 8);
return 1;
}
/* Try to handle the recoverable page faults by filling page
* tables
*/
if (amdgpu_vm_handle_fault(adev, entry->pasid, addr, write_fault))
return 1;
}
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) &&
(adev->ip_versions[GC_HWIP][0] < IP_VERSION(10, 3, 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);
}
if (!printk_ratelimit())
return 0;
memset(&task_info, 0, sizeof(struct amdgpu_task_info));
amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
dev_err(adev->dev,
"[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, "
"for process %s pid %d thread %s pid %d)\n",
entry->vmid_src ? "mmhub" : "gfxhub",
entry->src_id, entry->ring_id, entry->vmid,
entry->pasid, task_info.process_name, task_info.tgid,
task_info.task_name, task_info.pid);
dev_err(adev->dev, " in page starting at address 0x%016llx from client 0x%x (%s)\n",
addr, entry->client_id,
soc15_ih_clientid_name[entry->client_id]);
if (!amdgpu_sriov_vf(adev))
hub->vmhub_funcs->print_l2_protection_fault_status(adev,
status);
return 0;
}
static const struct amdgpu_irq_src_funcs gmc_v10_0_irq_funcs = {
.set = gmc_v10_0_vm_fault_interrupt_state,
.process = gmc_v10_0_process_interrupt,
};
static const struct amdgpu_irq_src_funcs gmc_v10_0_ecc_funcs = {
.set = gmc_v10_0_ecc_interrupt_state,
.process = amdgpu_umc_process_ecc_irq,
};
static void gmc_v10_0_set_irq_funcs(struct amdgpu_device *adev)
{
adev->gmc.vm_fault.num_types = 1;
adev->gmc.vm_fault.funcs = &gmc_v10_0_irq_funcs;
if (!amdgpu_sriov_vf(adev)) {
adev->gmc.ecc_irq.num_types = 1;
adev->gmc.ecc_irq.funcs = &gmc_v10_0_ecc_funcs;
}
}
/**
* gmc_v10_0_use_invalidate_semaphore - judge whether to use semaphore
*
* @adev: amdgpu_device pointer
* @vmhub: vmhub type
*
*/
static bool gmc_v10_0_use_invalidate_semaphore(struct amdgpu_device *adev,
uint32_t vmhub)
{
return ((vmhub == AMDGPU_MMHUB_0 ||
vmhub == AMDGPU_MMHUB_1) &&
(!amdgpu_sriov_vf(adev)));
}
static bool gmc_v10_0_get_atc_vmid_pasid_mapping_info(
struct amdgpu_device *adev,
uint8_t vmid, uint16_t *p_pasid)
{
uint32_t value;
value = RREG32(SOC15_REG_OFFSET(ATHUB, 0, mmATC_VMID0_PASID_MAPPING)
+ vmid);
*p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK;
return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK);
}
/*
* 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_v10_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
unsigned int vmhub, uint32_t flush_type)
{
bool use_semaphore = gmc_v10_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)
DRM_ERROR("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);
/*
* Issue a dummy read to wait for the ACK register to be cleared
* to avoid a false ACK due to the new fast GRBM interface.
*/
if ((vmhub == AMDGPU_GFXHUB_0) &&
(adev->ip_versions[GC_HWIP][0] < IP_VERSION(10, 3, 0)))
RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_req +
hub->eng_distance * eng, 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);
spin_unlock(&adev->gmc.invalidate_lock);
if (i < adev->usec_timeout)
return;
DRM_ERROR("Timeout waiting for VM flush hub: %d!\n", vmhub);
}
/**
* gmc_v10_0_flush_gpu_tlb - gart tlb flush callback
*
* @adev: amdgpu_device pointer
* @vmid: vm instance to flush
* @vmhub: vmhub type
* @flush_type: the flush type
*
* Flush the TLB for the requested page table.
*/
static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
uint32_t vmhub, uint32_t flush_type)
{
struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring;
struct dma_fence *fence;
struct amdgpu_job *job;
int r;
/* flush hdp cache */
adev->hdp.funcs->flush_hdp(adev, NULL);
/* For SRIOV run time, driver shouldn't access the register through MMIO
* Directly use kiq to do the vm invalidation instead
*/
if (adev->gfx.kiq.ring.sched.ready && !adev->enable_mes &&
(amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
down_read_trylock(&adev->reset_domain->sem)) {
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_virt_kiq_reg_write_reg_wait(adev, req, ack, inv_req,
1 << vmid);
up_read(&adev->reset_domain->sem);
return;
}
mutex_lock(&adev->mman.gtt_window_lock);
if (vmhub == AMDGPU_MMHUB_0) {
gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_MMHUB_0, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;
}
BUG_ON(vmhub != AMDGPU_GFXHUB_0);
if (!adev->mman.buffer_funcs_enabled ||
!adev->ib_pool_ready ||
amdgpu_in_reset(adev) ||
ring->sched.ready == false) {
gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0);
mutex_unlock(&adev->mman.gtt_window_lock);
return;
}
/* The SDMA on Navi has a bug which can theoretically result in memory
* corruption if an invalidation happens at the same time as an VA
* translation. Avoid this by doing the invalidation from the SDMA
* itself.
*/
r = amdgpu_job_alloc_with_ib(adev, 16 * 4, AMDGPU_IB_POOL_IMMEDIATE,
&job);
if (r)
goto error_alloc;
job->vm_pd_addr = amdgpu_gmc_pd_addr(adev->gart.bo);
job->vm_needs_flush = true;
job->ibs->ptr[job->ibs->length_dw++] = ring->funcs->nop;
amdgpu_ring_pad_ib(ring, &job->ibs[0]);
r = amdgpu_job_submit(job, &adev->mman.entity,
AMDGPU_FENCE_OWNER_UNDEFINED, &fence);
if (r)
goto error_submit;
mutex_unlock(&adev->mman.gtt_window_lock);
dma_fence_wait(fence, false);
dma_fence_put(fence);
return;
error_submit:
amdgpu_job_free(job);
error_alloc:
mutex_unlock(&adev->mman.gtt_window_lock);
DRM_ERROR("Error flushing GPU TLB using the SDMA (%d)!\n", r);
}
/**
* gmc_v10_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: Used with PACKET3_INVALIDATE_TLBS_ALL_HUB()
*
* Flush the TLB for the requested pasid.
*/
static int gmc_v10_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
uint16_t pasid, uint32_t flush_type,
bool all_hub)
{
int vmid, i;
signed long r;
uint32_t seq;
uint16_t queried_pasid;
bool ret;
u32 usec_timeout = amdgpu_sriov_vf(adev) ? SRIOV_USEC_TIMEOUT : adev->usec_timeout;
struct amdgpu_ring *ring = &adev->gfx.kiq.ring;
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
if (amdgpu_emu_mode == 0 && ring->sched.ready) {
spin_lock(&adev->gfx.kiq.ring_lock);
/* 2 dwords flush + 8 dwords fence */
amdgpu_ring_alloc(ring, kiq->pmf->invalidate_tlbs_size + 8);
kiq->pmf->kiq_invalidate_tlbs(ring,
pasid, flush_type, all_hub);
r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT);
if (r) {
amdgpu_ring_undo(ring);
spin_unlock(&adev->gfx.kiq.ring_lock);
return -ETIME;
}
amdgpu_ring_commit(ring);
spin_unlock(&adev->gfx.kiq.ring_lock);
r = amdgpu_fence_wait_polling(ring, seq, usec_timeout);
if (r < 1) {
dev_err(adev->dev, "wait for kiq fence error: %ld.\n", r);
return -ETIME;
}
return 0;
}
for (vmid = 1; vmid < AMDGPU_NUM_VMID; vmid++) {
ret = gmc_v10_0_get_atc_vmid_pasid_mapping_info(adev, vmid,
&queried_pasid);
if (ret && queried_pasid == pasid) {
if (all_hub) {
for (i = 0; i < adev->num_vmhubs; i++)
gmc_v10_0_flush_gpu_tlb(adev, vmid,
i, flush_type);
} else {
gmc_v10_0_flush_gpu_tlb(adev, vmid,
AMDGPU_GFXHUB_0, flush_type);
}
if (!adev->enable_mes)
break;
}
}
return 0;
}
static uint64_t gmc_v10_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
unsigned vmid, uint64_t pd_addr)
{
bool use_semaphore = gmc_v10_0_use_invalidate_semaphore(ring->adev, ring->funcs->vmhub);
struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
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_v10_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->funcs->vmhub == AMDGPU_GFXHUB_0)
reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid;
else
reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid;
amdgpu_ring_emit_wreg(ring, reg, pasid);
}
/*
* PTE format on NAVI 10:
* 63:59 reserved
* 58 reserved and for sienna_cichlid is used for MALL noalloc
* 57 reserved
* 56 F
* 55 L
* 54 reserved
* 53:52 SW
* 51 T
* 50:48 mtype
* 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 on NAVI 10:
* 63:59 block fragment size
* 58:55 reserved
* 54 P
* 53:48 reserved
* 47:6 physical base address of PD or PTE
* 5:3 reserved
* 2 C
* 1 system
* 0 valid
*/
static uint64_t gmc_v10_0_map_mtype(struct amdgpu_device *adev, uint32_t flags)
{
switch (flags) {
case AMDGPU_VM_MTYPE_DEFAULT:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
case AMDGPU_VM_MTYPE_NC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
case AMDGPU_VM_MTYPE_WC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_WC);
case AMDGPU_VM_MTYPE_CC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_CC);
case AMDGPU_VM_MTYPE_UC:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_UC);
default:
return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
}
}
static void gmc_v10_0_get_vm_pde(struct amdgpu_device *adev, int level,
uint64_t *addr, uint64_t *flags)
{
if (!(*flags & AMDGPU_PDE_PTE) && !(*flags & AMDGPU_PTE_SYSTEM))
*addr = amdgpu_gmc_vram_mc2pa(adev, *addr);
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))
*flags |= AMDGPU_PDE_BFS(0x9);
} else if (level == AMDGPU_VM_PDB0) {
if (*flags & AMDGPU_PDE_PTE)
*flags &= ~AMDGPU_PDE_PTE;
else
*flags |= AMDGPU_PTE_TF;
}
}
static void gmc_v10_0_get_vm_pte(struct amdgpu_device *adev,
struct amdgpu_bo_va_mapping *mapping,
uint64_t *flags)
{
*flags &= ~AMDGPU_PTE_EXECUTABLE;
*flags |= mapping->flags & AMDGPU_PTE_EXECUTABLE;
*flags &= ~AMDGPU_PTE_MTYPE_NV10_MASK;
*flags |= (mapping->flags & AMDGPU_PTE_MTYPE_NV10_MASK);
*flags &= ~AMDGPU_PTE_NOALLOC;
*flags |= (mapping->flags & AMDGPU_PTE_NOALLOC);
if (mapping->flags & AMDGPU_PTE_PRT) {
*flags |= AMDGPU_PTE_PRT;
*flags |= AMDGPU_PTE_SNOOPED;
*flags |= AMDGPU_PTE_LOG;
*flags |= AMDGPU_PTE_SYSTEM;
*flags &= ~AMDGPU_PTE_VALID;
}
}
static unsigned gmc_v10_0_get_vbios_fb_size(struct amdgpu_device *adev)
{
u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
unsigned size;
if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
size = AMDGPU_VBIOS_VGA_ALLOCATION;
} else {
u32 viewport;
u32 pitch;
viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
pitch = RREG32_SOC15(DCE, 0, mmHUBPREQ0_DCSURF_SURFACE_PITCH);
size = (REG_GET_FIELD(viewport,
HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
REG_GET_FIELD(pitch, HUBPREQ0_DCSURF_SURFACE_PITCH, PITCH) *
4);
}
return size;
}
static const struct amdgpu_gmc_funcs gmc_v10_0_gmc_funcs = {
.flush_gpu_tlb = gmc_v10_0_flush_gpu_tlb,
.flush_gpu_tlb_pasid = gmc_v10_0_flush_gpu_tlb_pasid,
.emit_flush_gpu_tlb = gmc_v10_0_emit_flush_gpu_tlb,
.emit_pasid_mapping = gmc_v10_0_emit_pasid_mapping,
.map_mtype = gmc_v10_0_map_mtype,
.get_vm_pde = gmc_v10_0_get_vm_pde,
.get_vm_pte = gmc_v10_0_get_vm_pte,
.get_vbios_fb_size = gmc_v10_0_get_vbios_fb_size,
};
static void gmc_v10_0_set_gmc_funcs(struct amdgpu_device *adev)
{
if (adev->gmc.gmc_funcs == NULL)
adev->gmc.gmc_funcs = &gmc_v10_0_gmc_funcs;
}
static void gmc_v10_0_set_umc_funcs(struct amdgpu_device *adev)
{
switch (adev->ip_versions[UMC_HWIP][0]) {
case IP_VERSION(8, 7, 0):
adev->umc.max_ras_err_cnt_per_query = UMC_V8_7_TOTAL_CHANNEL_NUM;
adev->umc.channel_inst_num = UMC_V8_7_CHANNEL_INSTANCE_NUM;
adev->umc.umc_inst_num = UMC_V8_7_UMC_INSTANCE_NUM;
adev->umc.channel_offs = UMC_V8_7_PER_CHANNEL_OFFSET_SIENNA;
adev->umc.channel_idx_tbl = &umc_v8_7_channel_idx_tbl[0][0];
adev->umc.ras = &umc_v8_7_ras;
break;
default:
break;
}
if (adev->umc.ras) {
amdgpu_ras_register_ras_block(adev, &adev->umc.ras->ras_block);
strcpy(adev->umc.ras->ras_block.ras_comm.name, "umc");
adev->umc.ras->ras_block.ras_comm.block = AMDGPU_RAS_BLOCK__UMC;
adev->umc.ras->ras_block.ras_comm.type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE;
adev->umc.ras_if = &adev->umc.ras->ras_block.ras_comm;
/* If don't define special ras_late_init function, use default ras_late_init */
if (!adev->umc.ras->ras_block.ras_late_init)
adev->umc.ras->ras_block.ras_late_init = amdgpu_umc_ras_late_init;
/* If not defined special ras_cb function, use default ras_cb */
if (!adev->umc.ras->ras_block.ras_cb)
adev->umc.ras->ras_block.ras_cb = amdgpu_umc_process_ras_data_cb;
}
}
static void gmc_v10_0_set_mmhub_funcs(struct amdgpu_device *adev)
{
switch (adev->ip_versions[MMHUB_HWIP][0]) {
case IP_VERSION(2, 3, 0):
case IP_VERSION(2, 4, 0):
case IP_VERSION(2, 4, 1):
adev->mmhub.funcs = &mmhub_v2_3_funcs;
break;
default:
adev->mmhub.funcs = &mmhub_v2_0_funcs;
break;
}
}
static void gmc_v10_0_set_gfxhub_funcs(struct amdgpu_device *adev)
{
switch (adev->ip_versions[GC_HWIP][0]) {
case IP_VERSION(10, 3, 0):
case IP_VERSION(10, 3, 2):
case IP_VERSION(10, 3, 1):
case IP_VERSION(10, 3, 4):
case IP_VERSION(10, 3, 5):
case IP_VERSION(10, 3, 6):
case IP_VERSION(10, 3, 3):
case IP_VERSION(10, 3, 7):
adev->gfxhub.funcs = &gfxhub_v2_1_funcs;
break;
default:
adev->gfxhub.funcs = &gfxhub_v2_0_funcs;
break;
}
}
static int gmc_v10_0_early_init(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v10_0_set_mmhub_funcs(adev);
gmc_v10_0_set_gfxhub_funcs(adev);
gmc_v10_0_set_gmc_funcs(adev);
gmc_v10_0_set_irq_funcs(adev);
gmc_v10_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;
r = amdgpu_gmc_ras_early_init(adev);
if (r)
return r;
return 0;
}
static int gmc_v10_0_late_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
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_v10_0_vram_gtt_location(struct amdgpu_device *adev,
struct amdgpu_gmc *mc)
{
u64 base = 0;
base = adev->gfxhub.funcs->get_fb_location(adev);
/* add the xgmi offset of the physical node */
base += adev->gmc.xgmi.physical_node_id * adev->gmc.xgmi.node_segment_size;
amdgpu_gmc_vram_location(adev, &adev->gmc, base);
amdgpu_gmc_gart_location(adev, mc);
amdgpu_gmc_agp_location(adev, mc);
/* base offset of vram pages */
adev->vm_manager.vram_base_offset = adev->gfxhub.funcs->get_mc_fb_offset(adev);
/* add the xgmi offset of the physical node */
adev->vm_manager.vram_base_offset +=
adev->gmc.xgmi.physical_node_id * adev->gmc.xgmi.node_segment_size;
}
/**
* gmc_v10_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_v10_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->gfxhub.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) {
switch (adev->ip_versions[GC_HWIP][0]) {
default:
adev->gmc.gart_size = 512ULL << 20;
break;
case IP_VERSION(10, 3, 1): /* DCE SG support */
case IP_VERSION(10, 3, 3): /* DCE SG support */
case IP_VERSION(10, 3, 6): /* DCE SG support */
case IP_VERSION(10, 3, 7): /* DCE SG support */
adev->gmc.gart_size = 1024ULL << 20;
break;
}
} else {
adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
}
gmc_v10_0_vram_gtt_location(adev, &adev->gmc);
return 0;
}
static int gmc_v10_0_gart_init(struct amdgpu_device *adev)
{
int r;
if (adev->gart.bo) {
WARN(1, "NAVI10 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_NV10(MTYPE_UC) |
AMDGPU_PTE_EXECUTABLE;
return amdgpu_gart_table_vram_alloc(adev);
}
static int gmc_v10_0_sw_init(void *handle)
{
int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->gfxhub.funcs->init(adev);
adev->mmhub.funcs->init(adev);
spin_lock_init(&adev->gmc.invalidate_lock);
if ((adev->flags & AMD_IS_APU) && amdgpu_emu_mode == 1) {
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_DDR4;
adev->gmc.vram_width = 64;
} else if (amdgpu_emu_mode == 1) {
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_GDDR6;
adev->gmc.vram_width = 1 * 128; /* numchan * chansize */
} else {
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 (adev->ip_versions[GC_HWIP][0]) {
case IP_VERSION(10, 3, 0):
adev->gmc.mall_size = 128 * 1024 * 1024;
break;
case IP_VERSION(10, 3, 2):
adev->gmc.mall_size = 96 * 1024 * 1024;
break;
case IP_VERSION(10, 3, 4):
adev->gmc.mall_size = 32 * 1024 * 1024;
break;
case IP_VERSION(10, 3, 5):
adev->gmc.mall_size = 16 * 1024 * 1024;
break;
default:
adev->gmc.mall_size = 0;
break;
}
switch (adev->ip_versions[GC_HWIP][0]) {
case IP_VERSION(10, 1, 10):
case IP_VERSION(10, 1, 1):
case IP_VERSION(10, 1, 2):
case IP_VERSION(10, 1, 3):
case IP_VERSION(10, 1, 4):
case IP_VERSION(10, 3, 0):
case IP_VERSION(10, 3, 2):
case IP_VERSION(10, 3, 1):
case IP_VERSION(10, 3, 4):
case IP_VERSION(10, 3, 5):
case IP_VERSION(10, 3, 6):
case IP_VERSION(10, 3, 3):
case IP_VERSION(10, 3, 7):
adev->num_vmhubs = 2;
/*
* To fulfill 4-level page support,
* vm size is 256TB (48bit), maximum size of Navi10/Navi14/Navi12,
* 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, SOC15_IH_CLIENTID_VMC,
VMC_1_0__SRCID__VM_FAULT,
&adev->gmc.vm_fault);
if (r)
return r;
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2,
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, SOC15_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_v10_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_v10_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_v10_0_gart_fini - vm fini callback
*
* @adev: amdgpu_device pointer
*
* Tears down the driver GART/VM setup (CIK).
*/
static void gmc_v10_0_gart_fini(struct amdgpu_device *adev)
{
amdgpu_gart_table_vram_free(adev);
}
static int gmc_v10_0_sw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
amdgpu_vm_manager_fini(adev);
gmc_v10_0_gart_fini(adev);
amdgpu_gem_force_release(adev);
amdgpu_bo_fini(adev);
return 0;
}
static void gmc_v10_0_init_golden_registers(struct amdgpu_device *adev)
{
}
/**
* gmc_v10_0_gart_enable - gart enable
*
* @adev: amdgpu_device pointer
*/
static int gmc_v10_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->gfxhub.funcs->gart_enable(adev);
if (r)
return r;
r = adev->mmhub.funcs->gart_enable(adev);
if (r)
return r;
adev->hdp.funcs->init_registers(adev);
/* 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->gfxhub.funcs->set_fault_enable_default(adev, value);
adev->mmhub.funcs->set_fault_enable_default(adev, value);
gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_0, 0);
gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_GFXHUB_0, 0);
DRM_INFO("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_v10_0_hw_init(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
/* The sequence of these two function calls matters.*/
gmc_v10_0_init_golden_registers(adev);
/*
* harvestable groups in gc_utcl2 need to be programmed before any GFX block
* register setup within GMC, or else system hang when harvesting SA.
*/
if (adev->gfxhub.funcs && adev->gfxhub.funcs->utcl2_harvest)
adev->gfxhub.funcs->utcl2_harvest(adev);
r = gmc_v10_0_gart_enable(adev);
if (r)
return r;
if (amdgpu_emu_mode == 1) {
r = amdgpu_gmc_vram_checking(adev);
if (r)
return r;
}
if (adev->umc.funcs && adev->umc.funcs->init_registers)
adev->umc.funcs->init_registers(adev);
return 0;
}
/**
* gmc_v10_0_gart_disable - gart disable
*
* @adev: amdgpu_device pointer
*
* This disables all VM page table.
*/
static void gmc_v10_0_gart_disable(struct amdgpu_device *adev)
{
adev->gfxhub.funcs->gart_disable(adev);
adev->mmhub.funcs->gart_disable(adev);
}
static int gmc_v10_0_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v10_0_gart_disable(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);
return 0;
}
static int gmc_v10_0_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
gmc_v10_0_hw_fini(adev);
return 0;
}
static int gmc_v10_0_resume(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = gmc_v10_0_hw_init(adev);
if (r)
return r;
amdgpu_vmid_reset_all(adev);
return 0;
}
static bool gmc_v10_0_is_idle(void *handle)
{
/* MC is always ready in GMC v10.*/
return true;
}
static int gmc_v10_0_wait_for_idle(void *handle)
{
/* There is no need to wait for MC idle in GMC v10.*/
return 0;
}
static int gmc_v10_0_soft_reset(void *handle)
{
return 0;
}
static int gmc_v10_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
/*
* The issue mmhub can't disconnect from DF with MMHUB clock gating being disabled
* is a new problem observed at DF 3.0.3, however with the same suspend sequence not
* seen any issue on the DF 3.0.2 series platform.
*/
if (adev->in_s0ix && adev->ip_versions[DF_HWIP][0] > IP_VERSION(3, 0, 2)) {
dev_dbg(adev->dev, "keep mmhub clock gating being enabled for s0ix\n");
return 0;
}
r = adev->mmhub.funcs->set_clockgating(adev, state);
if (r)
return r;
if (adev->ip_versions[ATHUB_HWIP][0] >= IP_VERSION(2, 1, 0))
return athub_v2_1_set_clockgating(adev, state);
else
return athub_v2_0_set_clockgating(adev, state);
}
static void gmc_v10_0_get_clockgating_state(void *handle, u64 *flags)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(10, 1, 3) ||
adev->ip_versions[GC_HWIP][0] == IP_VERSION(10, 1, 4))
return;
adev->mmhub.funcs->get_clockgating(adev, flags);
if (adev->ip_versions[ATHUB_HWIP][0] >= IP_VERSION(2, 1, 0))
athub_v2_1_get_clockgating(adev, flags);
else
athub_v2_0_get_clockgating(adev, flags);
}
static int gmc_v10_0_set_powergating_state(void *handle,
enum amd_powergating_state state)
{
return 0;
}
const struct amd_ip_funcs gmc_v10_0_ip_funcs = {
.name = "gmc_v10_0",
.early_init = gmc_v10_0_early_init,
.late_init = gmc_v10_0_late_init,
.sw_init = gmc_v10_0_sw_init,
.sw_fini = gmc_v10_0_sw_fini,
.hw_init = gmc_v10_0_hw_init,
.hw_fini = gmc_v10_0_hw_fini,
.suspend = gmc_v10_0_suspend,
.resume = gmc_v10_0_resume,
.is_idle = gmc_v10_0_is_idle,
.wait_for_idle = gmc_v10_0_wait_for_idle,
.soft_reset = gmc_v10_0_soft_reset,
.set_clockgating_state = gmc_v10_0_set_clockgating_state,
.set_powergating_state = gmc_v10_0_set_powergating_state,
.get_clockgating_state = gmc_v10_0_get_clockgating_state,
};
const struct amdgpu_ip_block_version gmc_v10_0_ip_block =
{
.type = AMD_IP_BLOCK_TYPE_GMC,
.major = 10,
.minor = 0,
.rev = 0,
.funcs = &gmc_v10_0_ip_funcs,
};