android_kernel_samsung_sm86.../qcom/opensource/graphics-kernel/adreno_a6xx_hwsched.c
David Wronek 880d405719 Add 'qcom/opensource/graphics-kernel/' from commit 'b4fdc4c04295ac59109ae19d64747522740c3f14'
git-subtree-dir: qcom/opensource/graphics-kernel
git-subtree-mainline: 992813d9c1
git-subtree-split: b4fdc4c042
Change-Id:
repo: https://git.codelinaro.org/clo/la/platform/vendor/qcom/opensource/graphics-kernel
tag: GRAPHICS.LA.14.0.r1-07700-lanai.0
2024-10-06 16:44:56 +02:00

1408 lines
36 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2022-2024, Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/interconnect.h>
#include "adreno.h"
#include "adreno_a6xx.h"
#include "adreno_a6xx_hwsched.h"
#include "adreno_hfi.h"
#include "adreno_snapshot.h"
#include "kgsl_bus.h"
#include "kgsl_device.h"
#include "kgsl_trace.h"
static size_t adreno_hwsched_snapshot_rb(struct kgsl_device *device, u8 *buf,
size_t remain, void *priv)
{
struct kgsl_snapshot_rb_v2 *header = (struct kgsl_snapshot_rb_v2 *)buf;
u32 *data = (u32 *)(buf + sizeof(*header));
struct kgsl_memdesc *rb = (struct kgsl_memdesc *)priv;
if (remain < rb->size + sizeof(*header)) {
SNAPSHOT_ERR_NOMEM(device, "RB");
return 0;
}
header->start = 0;
header->end = rb->size >> 2;
header->rptr = 0;
header->rbsize = rb->size >> 2;
header->count = rb->size >> 2;
header->timestamp_queued = 0;
header->timestamp_retired = 0;
header->gpuaddr = rb->gpuaddr;
header->id = 0;
memcpy(data, rb->hostptr, rb->size);
return rb->size + sizeof(*header);
}
static void a6xx_hwsched_snapshot_preemption_record(struct kgsl_device *device,
struct kgsl_snapshot *snapshot, struct kgsl_memdesc *md, u64 offset)
{
struct kgsl_snapshot_section_header *section_header =
(struct kgsl_snapshot_section_header *)snapshot->ptr;
u8 *dest = snapshot->ptr + sizeof(*section_header);
struct kgsl_snapshot_gpu_object_v2 *header =
(struct kgsl_snapshot_gpu_object_v2 *)dest;
const struct adreno_a6xx_core *a6xx_core = to_a6xx_core(ADRENO_DEVICE(device));
u64 ctxt_record_size = A6XX_CP_CTXRECORD_SIZE_IN_BYTES;
size_t section_size;
if (a6xx_core->ctxt_record_size)
ctxt_record_size = a6xx_core->ctxt_record_size;
ctxt_record_size = min_t(u64, ctxt_record_size, device->snapshot_ctxt_record_size);
section_size = sizeof(*section_header) + sizeof(*header) + ctxt_record_size;
if (snapshot->remain < section_size) {
SNAPSHOT_ERR_NOMEM(device, "PREEMPTION RECORD");
return;
}
section_header->magic = SNAPSHOT_SECTION_MAGIC;
section_header->id = KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2;
section_header->size = section_size;
header->size = ctxt_record_size >> 2;
header->gpuaddr = md->gpuaddr + offset;
header->ptbase =
kgsl_mmu_pagetable_get_ttbr0(device->mmu.defaultpagetable);
header->type = SNAPSHOT_GPU_OBJECT_GLOBAL;
dest += sizeof(*header);
memcpy(dest, md->hostptr + offset, ctxt_record_size);
snapshot->ptr += section_header->size;
snapshot->remain -= section_header->size;
snapshot->size += section_header->size;
}
static void snapshot_preemption_records(struct kgsl_device *device,
struct kgsl_snapshot *snapshot, struct kgsl_memdesc *md)
{
const struct adreno_a6xx_core *a6xx_core =
to_a6xx_core(ADRENO_DEVICE(device));
u64 ctxt_record_size = A6XX_CP_CTXRECORD_SIZE_IN_BYTES;
u64 offset;
if (a6xx_core->ctxt_record_size)
ctxt_record_size = a6xx_core->ctxt_record_size;
/* All preemption records exist as a single mem alloc entry */
for (offset = 0; offset < md->size; offset += ctxt_record_size)
a6xx_hwsched_snapshot_preemption_record(device, snapshot, md,
offset);
}
static void *get_rb_hostptr(struct adreno_device *adreno_dev,
u64 gpuaddr, u32 size)
{
struct a6xx_hwsched_hfi *hw_hfi = to_a6xx_hwsched_hfi(adreno_dev);
u64 offset;
u32 i;
for (i = 0; i < hw_hfi->mem_alloc_entries; i++) {
struct kgsl_memdesc *md = hw_hfi->mem_alloc_table[i].md;
if (md && (gpuaddr >= md->gpuaddr) &&
((gpuaddr + size) <= (md->gpuaddr + md->size))) {
offset = gpuaddr - md->gpuaddr;
return md->hostptr + offset;
}
}
return NULL;
}
static u32 a6xx_copy_gpu_global(void *out, void *in, u32 size)
{
if (out && in) {
memcpy(out, in, size);
return size;
}
return 0;
}
static void adreno_hwsched_snapshot_rb_payload(struct adreno_device *adreno_dev,
struct kgsl_snapshot *snapshot, struct payload_section *payload)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct kgsl_snapshot_section_header *section_header =
(struct kgsl_snapshot_section_header *)snapshot->ptr;
u8 *buf = snapshot->ptr + sizeof(*section_header);
struct kgsl_snapshot_rb_v2 *header = (struct kgsl_snapshot_rb_v2 *)buf;
u32 *data = (u32 *)(buf + sizeof(*header));
u32 size = adreno_hwsched_parse_payload(payload, KEY_RB_SIZEDWORDS) << 2;
u64 lo, hi, gpuaddr;
void *rb_hostptr;
char str[16];
lo = adreno_hwsched_parse_payload(payload, KEY_RB_GPUADDR_LO);
hi = adreno_hwsched_parse_payload(payload, KEY_RB_GPUADDR_HI);
gpuaddr = hi << 32 | lo;
/* Sanity check to make sure there is enough for the header */
if (snapshot->remain < sizeof(*section_header))
goto err;
rb_hostptr = get_rb_hostptr(adreno_dev, gpuaddr, size);
/* If the gpuaddress and size don't match any allocation, then abort */
if (((snapshot->remain - sizeof(*section_header)) <
(size + sizeof(*header))) ||
!a6xx_copy_gpu_global(data, rb_hostptr, size))
goto err;
if (device->dump_all_ibs) {
u64 rbaddr;
kgsl_regread64(device, A6XX_CP_RB_BASE,
A6XX_CP_RB_BASE_HI, &rbaddr);
/* Parse all IBs from current RB */
if (rbaddr == gpuaddr)
adreno_snapshot_dump_all_ibs(device, rb_hostptr, snapshot);
}
header->start = 0;
header->end = size >> 2;
header->rptr = adreno_hwsched_parse_payload(payload, KEY_RB_RPTR);
header->wptr = adreno_hwsched_parse_payload(payload, KEY_RB_WPTR);
header->rbsize = size >> 2;
header->count = size >> 2;
header->timestamp_queued = adreno_hwsched_parse_payload(payload,
KEY_RB_QUEUED_TS);
header->timestamp_retired = adreno_hwsched_parse_payload(payload,
KEY_RB_RETIRED_TS);
header->gpuaddr = gpuaddr;
header->id = adreno_hwsched_parse_payload(payload, KEY_RB_ID);
section_header->magic = SNAPSHOT_SECTION_MAGIC;
section_header->id = KGSL_SNAPSHOT_SECTION_RB_V2;
section_header->size = size + sizeof(*header) + sizeof(*section_header);
snapshot->ptr += section_header->size;
snapshot->remain -= section_header->size;
snapshot->size += section_header->size;
return;
err:
snprintf(str, sizeof(str), "RB addr:0x%llx", gpuaddr);
SNAPSHOT_ERR_NOMEM(device, str);
}
static bool parse_payload_rb_legacy(struct adreno_device *adreno_dev,
struct kgsl_snapshot *snapshot)
{
struct hfi_context_bad_cmd_legacy *cmd = adreno_dev->hwsched.ctxt_bad;
u32 i = 0, payload_bytes;
void *start;
bool ret = false;
/* Skip if we didn't receive a context bad HFI */
if (!cmd->hdr)
return false;
payload_bytes = (MSG_HDR_GET_SIZE(cmd->hdr) << 2) -
offsetof(struct hfi_context_bad_cmd_legacy, payload);
start = &cmd->payload[0];
while (i < payload_bytes) {
struct payload_section *payload = start + i;
if (payload->type == PAYLOAD_RB) {
adreno_hwsched_snapshot_rb_payload(adreno_dev, snapshot, payload);
ret = true;
}
i += sizeof(*payload) + (payload->dwords << 2);
}
return ret;
}
static bool parse_payload_rb(struct adreno_device *adreno_dev,
struct kgsl_snapshot *snapshot)
{
struct hfi_context_bad_cmd *cmd = adreno_dev->hwsched.ctxt_bad;
u32 i = 0, payload_bytes;
void *start;
bool ret = false;
/* Skip if we didn't receive a context bad HFI */
if (!cmd->hdr)
return false;
payload_bytes = (MSG_HDR_GET_SIZE(cmd->hdr) << 2) -
offsetof(struct hfi_context_bad_cmd, payload);
start = &cmd->payload[0];
while (i < payload_bytes) {
struct payload_section *payload = start + i;
if (payload->type == PAYLOAD_RB) {
adreno_hwsched_snapshot_rb_payload(adreno_dev,
snapshot, payload);
ret = true;
}
i += sizeof(*payload) + (payload->dwords << 2);
}
return ret;
}
void a6xx_hwsched_snapshot(struct adreno_device *adreno_dev,
struct kgsl_snapshot *snapshot)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_hwsched_hfi *hw_hfi = to_a6xx_hwsched_hfi(adreno_dev);
u32 i;
bool skip_memkind_rb = false;
bool parse_payload;
a6xx_gmu_snapshot(adreno_dev, snapshot);
adreno_hwsched_parse_fault_cmdobj(adreno_dev, snapshot);
/*
* First try to dump ringbuffers using context bad HFI payloads
* because they have all the ringbuffer parameters. If ringbuffer
* payloads are not present, fall back to dumping ringbuffers
* based on MEMKIND_RB
*/
if (GMU_VER_MINOR(gmu->ver.hfi) < 2)
parse_payload = parse_payload_rb_legacy(adreno_dev, snapshot);
else
parse_payload = parse_payload_rb(adreno_dev, snapshot);
if (parse_payload)
skip_memkind_rb = true;
for (i = 0; i < hw_hfi->mem_alloc_entries; i++) {
struct hfi_mem_alloc_entry *entry = &hw_hfi->mem_alloc_table[i];
if (entry->desc.mem_kind == HFI_MEMKIND_RB && !skip_memkind_rb)
kgsl_snapshot_add_section(device,
KGSL_SNAPSHOT_SECTION_RB_V2,
snapshot, adreno_hwsched_snapshot_rb,
entry->md);
if (entry->desc.mem_kind == HFI_MEMKIND_SCRATCH)
kgsl_snapshot_add_section(device,
KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2,
snapshot, adreno_snapshot_global,
entry->md);
if (entry->desc.mem_kind == HFI_MEMKIND_PROFILE)
kgsl_snapshot_add_section(device,
KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2,
snapshot, adreno_snapshot_global,
entry->md);
if (entry->desc.mem_kind == HFI_MEMKIND_CSW_SMMU_INFO)
kgsl_snapshot_add_section(device,
KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2,
snapshot, adreno_snapshot_global,
entry->md);
if (entry->desc.mem_kind == HFI_MEMKIND_CSW_PRIV_NON_SECURE)
snapshot_preemption_records(device, snapshot,
entry->md);
if (entry->desc.mem_kind == HFI_MEMKIND_PREEMPT_SCRATCH)
kgsl_snapshot_add_section(device,
KGSL_SNAPSHOT_SECTION_GPU_OBJECT_V2,
snapshot, adreno_snapshot_global,
entry->md);
}
}
static int a6xx_hwsched_gmu_first_boot(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct kgsl_pwrctrl *pwr = &device->pwrctrl;
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int level, ret = 0;
kgsl_pwrctrl_request_state(device, KGSL_STATE_AWARE);
a6xx_gmu_aop_send_acd_state(gmu, adreno_dev->acd_enabled);
ret = kgsl_pwrctrl_enable_cx_gdsc(device);
if (ret)
return ret;
ret = a6xx_gmu_enable_clks(adreno_dev, GMU_MAX_PWRLEVELS - 1);
if (ret)
goto gdsc_off;
ret = a6xx_gmu_load_fw(adreno_dev);
if (ret)
goto clks_gdsc_off;
ret = a6xx_gmu_itcm_shadow(adreno_dev);
if (ret)
goto clks_gdsc_off;
if (!test_bit(GMU_PRIV_PDC_RSC_LOADED, &gmu->flags)) {
ret = a6xx_load_pdc_ucode(adreno_dev);
if (ret)
goto clks_gdsc_off;
a6xx_load_rsc_ucode(adreno_dev);
set_bit(GMU_PRIV_PDC_RSC_LOADED, &gmu->flags);
}
a6xx_gmu_register_config(adreno_dev);
a6xx_gmu_version_info(adreno_dev);
if (GMU_VER_MINOR(gmu->ver.hfi) < 2)
set_bit(ADRENO_HWSCHED_CTX_BAD_LEGACY, &adreno_dev->hwsched.flags);
a6xx_gmu_irq_enable(adreno_dev);
/* Vote for minimal DDR BW for GMU to init */
level = pwr->pwrlevels[pwr->default_pwrlevel].bus_min;
icc_set_bw(pwr->icc_path, 0, kBps_to_icc(pwr->ddr_table[level]));
/* Clear any hwsched faults that might have been left over */
adreno_hwsched_clear_fault(adreno_dev);
ret = a6xx_gmu_device_start(adreno_dev);
if (ret)
goto err;
ret = a6xx_hwsched_hfi_start(adreno_dev);
if (ret)
goto err;
icc_set_bw(pwr->icc_path, 0, 0);
device->gmu_fault = false;
kgsl_pwrctrl_set_state(device, KGSL_STATE_AWARE);
return 0;
err:
a6xx_gmu_irq_disable(adreno_dev);
if (device->gmu_fault) {
a6xx_gmu_suspend(adreno_dev);
return ret;
}
clks_gdsc_off:
clk_bulk_disable_unprepare(gmu->num_clks, gmu->clks);
gdsc_off:
a6xx_gmu_disable_gdsc(adreno_dev);
a6xx_rdpm_cx_freq_update(gmu, 0);
return ret;
}
static int a6xx_hwsched_gmu_boot(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret = 0;
kgsl_pwrctrl_request_state(device, KGSL_STATE_AWARE);
ret = kgsl_pwrctrl_enable_cx_gdsc(device);
if (ret)
return ret;
ret = a6xx_gmu_enable_clks(adreno_dev, GMU_MAX_PWRLEVELS - 1);
if (ret)
goto gdsc_off;
ret = a6xx_rscc_wakeup_sequence(adreno_dev);
if (ret)
goto clks_gdsc_off;
ret = a6xx_gmu_load_fw(adreno_dev);
if (ret)
goto clks_gdsc_off;
a6xx_gmu_register_config(adreno_dev);
a6xx_gmu_irq_enable(adreno_dev);
/* Clear any hwsched faults that might have been left over */
adreno_hwsched_clear_fault(adreno_dev);
ret = a6xx_gmu_device_start(adreno_dev);
if (ret)
goto err;
ret = a6xx_hwsched_hfi_start(adreno_dev);
if (ret)
goto err;
device->gmu_fault = false;
kgsl_pwrctrl_set_state(device, KGSL_STATE_AWARE);
return 0;
err:
a6xx_gmu_irq_disable(adreno_dev);
if (device->gmu_fault) {
a6xx_gmu_suspend(adreno_dev);
return ret;
}
clks_gdsc_off:
clk_bulk_disable_unprepare(gmu->num_clks, gmu->clks);
gdsc_off:
a6xx_gmu_disable_gdsc(adreno_dev);
a6xx_rdpm_cx_freq_update(gmu, 0);
return ret;
}
void a6xx_hwsched_active_count_put(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
if (WARN_ON(!mutex_is_locked(&device->mutex)))
return;
if (WARN(atomic_read(&device->active_cnt) == 0,
"Unbalanced get/put calls to KGSL active count\n"))
return;
if (atomic_dec_and_test(&device->active_cnt)) {
kgsl_pwrscale_update_stats(device);
kgsl_pwrscale_update(device);
kgsl_start_idle_timer(device);
}
trace_kgsl_active_count(device,
(unsigned long) __builtin_return_address(0));
wake_up(&device->active_cnt_wq);
}
static int a6xx_hwsched_notify_slumber(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct kgsl_pwrctrl *pwr = &device->pwrctrl;
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
struct hfi_prep_slumber_cmd req;
int ret;
ret = CMD_MSG_HDR(req, H2F_MSG_PREPARE_SLUMBER);
if (ret)
return ret;
req.freq = gmu->hfi.dcvs_table.gpu_level_num -
pwr->default_pwrlevel - 1;
req.bw = pwr->pwrlevels[pwr->default_pwrlevel].bus_freq;
/* Disable the power counter so that the GMU is not busy */
gmu_core_regwrite(device, A6XX_GMU_CX_GMU_POWER_COUNTER_ENABLE, 0);
ret = a6xx_hfi_send_cmd_async(adreno_dev, &req, sizeof(req));
/*
* GEMNOC can enter power collapse state during GPU power down sequence.
* This could abort CX GDSC collapse. Assert Qactive to avoid this.
*/
if ((adreno_is_a662(adreno_dev) || adreno_is_a621(adreno_dev) ||
adreno_is_a635(adreno_dev)))
gmu_core_regwrite(device, A6XX_GPU_GMU_CX_GMU_CX_FALNEXT_INTF, 0x1);
return ret;
}
static int a6xx_hwsched_gmu_power_off(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret = 0;
if (device->gmu_fault)
goto error;
/* Wait for the lowest idle level we requested */
ret = a6xx_gmu_wait_for_lowest_idle(adreno_dev);
if (ret)
goto error;
ret = a6xx_hwsched_notify_slumber(adreno_dev);
if (ret)
goto error;
ret = a6xx_gmu_wait_for_idle(adreno_dev);
if (ret)
goto error;
ret = a6xx_rscc_sleep_sequence(adreno_dev);
a6xx_rdpm_mx_freq_update(gmu, 0);
/* Now that we are done with GMU and GPU, Clear the GBIF */
ret = a6xx_halt_gbif(adreno_dev);
/* De-assert the halts */
kgsl_regwrite(device, A6XX_GBIF_HALT, 0x0);
a6xx_gmu_irq_disable(adreno_dev);
a6xx_hwsched_hfi_stop(adreno_dev);
clk_bulk_disable_unprepare(gmu->num_clks, gmu->clks);
a6xx_gmu_disable_gdsc(adreno_dev);
a6xx_rdpm_cx_freq_update(gmu, 0);
kgsl_pwrctrl_set_state(device, KGSL_STATE_NONE);
return ret;
error:
a6xx_gmu_irq_disable(adreno_dev);
a6xx_hwsched_hfi_stop(adreno_dev);
a6xx_gmu_suspend(adreno_dev);
return ret;
}
static int a6xx_hwsched_gpu_boot(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
int ret;
ret = kgsl_mmu_start(device);
if (ret)
goto err;
ret = a6xx_gmu_oob_set(device, oob_gpu);
if (ret)
goto err;
/* Clear the busy_data stats - we're starting over from scratch */
memset(&adreno_dev->busy_data, 0, sizeof(adreno_dev->busy_data));
/* Restore performance counter registers with saved values */
adreno_perfcounter_restore(adreno_dev);
a6xx_start(adreno_dev);
/* Re-initialize the coresight registers if applicable */
adreno_coresight_start(adreno_dev);
adreno_perfcounter_start(adreno_dev);
/* Clear FSR here in case it is set from a previous pagefault */
kgsl_mmu_clear_fsr(&device->mmu);
a6xx_enable_gpu_irq(adreno_dev);
ret = a6xx_hwsched_cp_init(adreno_dev);
if (ret) {
a6xx_disable_gpu_irq(adreno_dev);
goto err;
}
/*
* At this point it is safe to assume that we recovered. Setting
* this field allows us to take a new snapshot for the next failure
* if we are prioritizing the first unrecoverable snapshot.
*/
if (device->snapshot)
device->snapshot->recovered = true;
device->reset_counter++;
err:
a6xx_gmu_oob_clear(device, oob_gpu);
if (ret)
a6xx_hwsched_gmu_power_off(adreno_dev);
return ret;
}
static void hwsched_idle_timer(struct timer_list *t)
{
struct kgsl_device *device = container_of(t, struct kgsl_device,
idle_timer);
kgsl_schedule_work(&device->idle_check_ws);
}
static int a6xx_hwsched_gmu_memory_init(struct adreno_device *adreno_dev)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
/* GMU Virtual register bank */
if (IS_ERR_OR_NULL(gmu->vrb)) {
gmu->vrb = reserve_gmu_kernel_block(gmu, 0, GMU_VRB_SIZE,
GMU_NONCACHED_KERNEL, 0);
if (IS_ERR(gmu->vrb))
return PTR_ERR(gmu->vrb);
/* Populate size of the virtual register bank */
gmu_core_set_vrb_register(gmu->vrb->hostptr, VRB_SIZE_IDX,
gmu->vrb->size >> 2);
}
/* GMU trace log */
if (IS_ERR_OR_NULL(gmu->trace.md)) {
gmu->trace.md = reserve_gmu_kernel_block(gmu, 0,
GMU_TRACE_SIZE, GMU_NONCACHED_KERNEL, 0);
if (IS_ERR(gmu->trace.md))
return PTR_ERR(gmu->trace.md);
/* Pass trace buffer address to GMU through the VRB */
gmu_core_set_vrb_register(gmu->vrb->hostptr,
VRB_TRACE_BUFFER_ADDR_IDX,
gmu->trace.md->gmuaddr);
/* Initialize the GMU trace buffer header */
gmu_core_trace_header_init(&gmu->trace);
}
return 0;
}
static int a6xx_hwsched_gmu_init(struct adreno_device *adreno_dev)
{
int ret;
ret = a6xx_gmu_parse_fw(adreno_dev);
if (ret)
return ret;
ret = a6xx_gmu_memory_init(adreno_dev);
if (ret)
return ret;
ret = a6xx_hwsched_gmu_memory_init(adreno_dev);
if (ret)
return ret;
return a6xx_hwsched_hfi_init(adreno_dev);
}
static void a6xx_hwsched_touch_wakeup(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret;
/*
* Do not wake up a suspended device or until the first boot sequence
* has been completed.
*/
if (test_bit(GMU_PRIV_PM_SUSPEND, &gmu->flags) ||
!test_bit(GMU_PRIV_FIRST_BOOT_DONE, &gmu->flags))
return;
if (test_bit(GMU_PRIV_GPU_STARTED, &gmu->flags))
goto done;
kgsl_pwrctrl_request_state(device, KGSL_STATE_ACTIVE);
ret = a6xx_hwsched_gmu_boot(adreno_dev);
if (ret)
return;
ret = a6xx_hwsched_gpu_boot(adreno_dev);
if (ret)
return;
kgsl_pwrscale_wake(device);
set_bit(GMU_PRIV_GPU_STARTED, &gmu->flags);
device->pwrctrl.last_stat_updated = ktime_get();
kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
done:
/*
* When waking up from a touch event we want to stay active long enough
* for the user to send a draw command. The default idle timer timeout
* is shorter than we want so go ahead and push the idle timer out
* further for this special case
*/
mod_timer(&device->idle_timer, jiffies +
msecs_to_jiffies(adreno_wake_timeout));
}
static int a6xx_hwsched_boot(struct adreno_device *adreno_dev)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
int ret;
if (test_bit(GMU_PRIV_GPU_STARTED, &gmu->flags))
return 0;
kgsl_pwrctrl_request_state(device, KGSL_STATE_ACTIVE);
adreno_hwsched_start(adreno_dev);
if (IS_ENABLED(CONFIG_QCOM_KGSL_HIBERNATION) &&
!test_bit(GMU_PRIV_PDC_RSC_LOADED, &gmu->flags))
ret = a6xx_hwsched_gmu_first_boot(adreno_dev);
else
ret = a6xx_hwsched_gmu_boot(adreno_dev);
if (ret)
return ret;
ret = a6xx_hwsched_gpu_boot(adreno_dev);
if (ret)
return ret;
kgsl_start_idle_timer(device);
kgsl_pwrscale_wake(device);
set_bit(GMU_PRIV_GPU_STARTED, &gmu->flags);
device->pwrctrl.last_stat_updated = ktime_get();
kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
return ret;
}
static int a6xx_hwsched_first_boot(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret;
if (test_bit(GMU_PRIV_FIRST_BOOT_DONE, &gmu->flags))
return a6xx_hwsched_boot(adreno_dev);
if (adreno_preemption_feature_set(adreno_dev))
set_bit(ADRENO_DEVICE_PREEMPTION, &adreno_dev->priv);
adreno_hwsched_start(adreno_dev);
ret = a6xx_microcode_read(adreno_dev);
if (ret)
return ret;
ret = a6xx_init(adreno_dev);
if (ret)
return ret;
ret = a6xx_hwsched_gmu_init(adreno_dev);
if (ret)
return ret;
kgsl_pwrctrl_request_state(device, KGSL_STATE_ACTIVE);
ret = a6xx_hwsched_gmu_first_boot(adreno_dev);
if (ret)
return ret;
ret = a6xx_hwsched_gpu_boot(adreno_dev);
if (ret)
return ret;
adreno_get_bus_counters(adreno_dev);
adreno_dev->cooperative_reset = ADRENO_FEATURE(adreno_dev,
ADRENO_COOP_RESET);
set_bit(GMU_PRIV_FIRST_BOOT_DONE, &gmu->flags);
set_bit(GMU_PRIV_GPU_STARTED, &gmu->flags);
/*
* There is a possible deadlock scenario during kgsl firmware reading
* (request_firmware) and devfreq update calls. During first boot, kgsl
* device mutex is held and then request_firmware is called for reading
* firmware. request_firmware internally takes dev_pm_qos_mtx lock.
* Whereas in case of devfreq update calls triggered by thermal/bcl or
* devfreq sysfs, it first takes the same dev_pm_qos_mtx lock and then
* tries to take kgsl device mutex as part of get_dev_status/target
* calls. This results in deadlock when both thread are unable to acquire
* the mutex held by other thread. Enable devfreq updates now as we are
* done reading all firmware files.
*/
device->pwrscale.devfreq_enabled = true;
device->pwrctrl.last_stat_updated = ktime_get();
kgsl_pwrctrl_set_state(device, KGSL_STATE_ACTIVE);
return 0;
}
static int a6xx_hwsched_power_off(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret;
if (!test_bit(GMU_PRIV_GPU_STARTED, &gmu->flags))
return 0;
kgsl_pwrctrl_request_state(device, KGSL_STATE_SLUMBER);
ret = a6xx_gmu_oob_set(device, oob_gpu);
if (ret) {
a6xx_gmu_oob_clear(device, oob_gpu);
goto no_gx_power;
}
kgsl_pwrscale_update_stats(device);
/* Save active coresight registers if applicable */
adreno_coresight_stop(adreno_dev);
/* Save physical performance counter values before GPU power down*/
adreno_perfcounter_save(adreno_dev);
adreno_irqctrl(adreno_dev, 0);
a6xx_gmu_oob_clear(device, oob_gpu);
no_gx_power:
kgsl_pwrctrl_irq(device, false);
a6xx_hwsched_gmu_power_off(adreno_dev);
adreno_hwsched_unregister_contexts(adreno_dev);
adreno_llcc_slice_deactivate(adreno_dev);
clear_bit(GMU_PRIV_GPU_STARTED, &gmu->flags);
del_timer_sync(&device->idle_timer);
kgsl_pwrscale_sleep(device);
kgsl_pwrctrl_clear_l3_vote(device);
kgsl_pwrctrl_set_state(device, KGSL_STATE_SLUMBER);
return ret;
}
static void hwsched_idle_check(struct work_struct *work)
{
struct kgsl_device *device = container_of(work,
struct kgsl_device, idle_check_ws);
struct adreno_device *adreno_dev = ADRENO_DEVICE(device);
mutex_lock(&device->mutex);
if (test_bit(GMU_DISABLE_SLUMBER, &device->gmu_core.flags))
goto done;
if (atomic_read(&device->active_cnt) || time_is_after_jiffies(device->idle_jiffies)) {
kgsl_pwrscale_update(device);
kgsl_start_idle_timer(device);
goto done;
}
spin_lock(&device->submit_lock);
if (device->submit_now) {
spin_unlock(&device->submit_lock);
kgsl_pwrscale_update(device);
kgsl_start_idle_timer(device);
goto done;
}
device->skip_inline_submit = true;
spin_unlock(&device->submit_lock);
if (!a6xx_hw_isidle(adreno_dev)) {
dev_err(device->dev, "GPU isn't idle before SLUMBER\n");
gmu_core_fault_snapshot(device);
}
a6xx_hwsched_power_off(adreno_dev);
done:
mutex_unlock(&device->mutex);
}
static int a6xx_hwsched_first_open(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
int ret;
/*
* Do the one time settings that need to happen when we
* attempt to boot the gpu the very first time
*/
ret = a6xx_hwsched_first_boot(adreno_dev);
if (ret)
return ret;
/*
* A client that does a first_open but never closes the device
* may prevent us from going back to SLUMBER. So trigger the idle
* check by incrementing the active count and immediately releasing it.
*/
atomic_inc(&device->active_cnt);
a6xx_hwsched_active_count_put(adreno_dev);
return 0;
}
int a6xx_hwsched_active_count_get(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret = 0;
if (WARN_ON(!mutex_is_locked(&device->mutex)))
return -EINVAL;
if (test_bit(GMU_PRIV_PM_SUSPEND, &gmu->flags))
return -EINVAL;
if ((atomic_read(&device->active_cnt) == 0))
ret = a6xx_hwsched_boot(adreno_dev);
if (ret == 0)
atomic_inc(&device->active_cnt);
trace_kgsl_active_count(device,
(unsigned long) __builtin_return_address(0));
return ret;
}
static int a6xx_hwsched_dcvs_set(struct adreno_device *adreno_dev,
int gpu_pwrlevel, int bus_level)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct kgsl_pwrctrl *pwr = &device->pwrctrl;
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
struct hfi_dcvstable_cmd *table = &gmu->hfi.dcvs_table;
struct hfi_gx_bw_perf_vote_cmd req = {
.ack_type = DCVS_ACK_BLOCK,
.freq = INVALID_DCVS_IDX,
.bw = INVALID_DCVS_IDX,
};
int ret;
if (!test_bit(GMU_PRIV_HFI_STARTED, &gmu->flags))
return 0;
/* Do not set to XO and lower GPU clock vote from GMU */
if ((gpu_pwrlevel != INVALID_DCVS_IDX) &&
(gpu_pwrlevel >= table->gpu_level_num - 1)) {
dev_err(&gmu->pdev->dev, "Invalid gpu dcvs request: %d\n",
gpu_pwrlevel);
return -EINVAL;
}
if (gpu_pwrlevel < table->gpu_level_num - 1)
req.freq = table->gpu_level_num - gpu_pwrlevel - 1;
if (bus_level < pwr->ddr_table_count && bus_level > 0)
req.bw = bus_level;
/* GMU will vote for slumber levels through the sleep sequence */
if ((req.freq == INVALID_DCVS_IDX) && (req.bw == INVALID_DCVS_IDX))
return 0;
ret = CMD_MSG_HDR(req, H2F_MSG_GX_BW_PERF_VOTE);
if (ret)
return ret;
ret = a6xx_hfi_send_cmd_async(adreno_dev, &req, sizeof(req));
if (ret) {
dev_err_ratelimited(&gmu->pdev->dev,
"Failed to set GPU perf idx %u, bw idx %u\n",
req.freq, req.bw);
/*
* If this was a dcvs request along side an active gpu, request
* dispatcher based reset and recovery.
*/
if (test_bit(GMU_PRIV_GPU_STARTED, &gmu->flags))
adreno_hwsched_fault(adreno_dev, ADRENO_GMU_FAULT);
}
if (req.freq != INVALID_DCVS_IDX)
a6xx_rdpm_mx_freq_update(gmu,
gmu->hfi.dcvs_table.gx_votes[req.freq].freq);
return ret;
}
static int a6xx_hwsched_clock_set(struct adreno_device *adreno_dev,
u32 pwrlevel)
{
return a6xx_hwsched_dcvs_set(adreno_dev, pwrlevel, INVALID_DCVS_IDX);
}
static void scale_gmu_frequency(struct adreno_device *adreno_dev, int buslevel)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct kgsl_pwrctrl *pwr = &device->pwrctrl;
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
static unsigned long prev_freq;
unsigned long freq = gmu->freqs[0];
if (!gmu->perf_ddr_bw)
return;
/*
* Scale the GMU if DDR is at a CX corner at which GMU can run at
* a higher frequency
*/
if (pwr->ddr_table[buslevel] >= gmu->perf_ddr_bw)
freq = gmu->freqs[GMU_MAX_PWRLEVELS - 1];
if (prev_freq == freq)
return;
if (kgsl_clk_set_rate(gmu->clks, gmu->num_clks, "gmu_clk", freq)) {
dev_err(&gmu->pdev->dev, "Unable to set the GMU clock to %ld\n",
freq);
return;
}
a6xx_rdpm_cx_freq_update(gmu, freq / 1000);
trace_kgsl_gmu_pwrlevel(freq, prev_freq);
prev_freq = freq;
}
static int a6xx_hwsched_bus_set(struct adreno_device *adreno_dev, int buslevel,
u32 ab)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct kgsl_pwrctrl *pwr = &device->pwrctrl;
int ret = 0;
kgsl_icc_set_tag(pwr, buslevel);
if (buslevel != pwr->cur_buslevel) {
ret = a6xx_hwsched_dcvs_set(adreno_dev, INVALID_DCVS_IDX,
buslevel);
if (ret)
return ret;
scale_gmu_frequency(adreno_dev, buslevel);
pwr->cur_buslevel = buslevel;
}
if (ab != pwr->cur_ab) {
icc_set_bw(pwr->icc_path, MBps_to_icc(ab), 0);
pwr->cur_ab = ab;
}
trace_kgsl_buslevel(device, pwr->active_pwrlevel, pwr->cur_buslevel, pwr->cur_ab);
return ret;
}
static int a6xx_hwsched_pm_suspend(struct adreno_device *adreno_dev)
{
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret;
if (test_bit(GMU_PRIV_PM_SUSPEND, &gmu->flags))
return 0;
kgsl_pwrctrl_request_state(device, KGSL_STATE_SUSPEND);
/* Halt any new submissions */
reinit_completion(&device->halt_gate);
/**
* Wait for the dispatcher to retire everything by waiting
* for the active count to go to zero.
*/
ret = kgsl_active_count_wait(device, 0, msecs_to_jiffies(100));
if (ret) {
dev_err(device->dev, "Timed out waiting for the active count\n");
goto err;
}
ret = adreno_hwsched_idle(adreno_dev);
if (ret)
goto err;
a6xx_hwsched_power_off(adreno_dev);
adreno_get_gpu_halt(adreno_dev);
set_bit(GMU_PRIV_PM_SUSPEND, &gmu->flags);
kgsl_pwrctrl_set_state(device, KGSL_STATE_SUSPEND);
return 0;
err:
adreno_hwsched_start(adreno_dev);
return ret;
}
void a6xx_hwsched_handle_watchdog(struct adreno_device *adreno_dev)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
u32 mask;
/* Temporarily mask the watchdog interrupt to prevent a storm */
gmu_core_regread(device, A6XX_GMU_AO_HOST_INTERRUPT_MASK,
&mask);
gmu_core_regwrite(device, A6XX_GMU_AO_HOST_INTERRUPT_MASK,
(mask | GMU_INT_WDOG_BITE));
a6xx_gmu_send_nmi(device, false);
dev_err_ratelimited(&gmu->pdev->dev,
"GMU watchdog expired interrupt received\n");
adreno_hwsched_fault(adreno_dev, ADRENO_GMU_FAULT);
}
static void a6xx_hwsched_pm_resume(struct adreno_device *adreno_dev)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
if (WARN(!test_bit(GMU_PRIV_PM_SUSPEND, &gmu->flags),
"resume invoked without a suspend\n"))
return;
adreno_put_gpu_halt(adreno_dev);
adreno_hwsched_start(adreno_dev);
clear_bit(GMU_PRIV_PM_SUSPEND, &gmu->flags);
}
static void a6xx_hwsched_drain_ctxt_unregister(struct adreno_device *adreno_dev)
{
struct a6xx_hwsched_hfi *hfi = to_a6xx_hwsched_hfi(adreno_dev);
struct pending_cmd *cmd = NULL;
read_lock(&hfi->msglock);
list_for_each_entry(cmd, &hfi->msglist, node) {
if (MSG_HDR_GET_ID(cmd->sent_hdr) == H2F_MSG_UNREGISTER_CONTEXT)
complete(&cmd->complete);
}
read_unlock(&hfi->msglock);
}
int a6xx_hwsched_reset_replay(struct adreno_device *adreno_dev)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
int ret;
/*
* Any pending context unregister packets will be lost
* since we hard reset the GMU. This means any threads waiting
* for context unregister hfi ack will timeout. Wake them
* to avoid false positive ack timeout messages later.
*/
a6xx_hwsched_drain_ctxt_unregister(adreno_dev);
adreno_hwsched_unregister_contexts(adreno_dev);
if (!test_bit(GMU_PRIV_GPU_STARTED, &gmu->flags))
return 0;
a6xx_disable_gpu_irq(adreno_dev);
a6xx_gmu_irq_disable(adreno_dev);
a6xx_hwsched_hfi_stop(adreno_dev);
a6xx_gmu_suspend(adreno_dev);
adreno_llcc_slice_deactivate(adreno_dev);
clear_bit(GMU_PRIV_GPU_STARTED, &gmu->flags);
ret = a6xx_hwsched_boot(adreno_dev);
if (!ret)
adreno_hwsched_replay(adreno_dev);
BUG_ON(ret);
return ret;
}
const struct adreno_power_ops a6xx_hwsched_power_ops = {
.first_open = a6xx_hwsched_first_open,
.last_close = a6xx_hwsched_power_off,
.active_count_get = a6xx_hwsched_active_count_get,
.active_count_put = a6xx_hwsched_active_count_put,
.touch_wakeup = a6xx_hwsched_touch_wakeup,
.pm_suspend = a6xx_hwsched_pm_suspend,
.pm_resume = a6xx_hwsched_pm_resume,
.gpu_clock_set = a6xx_hwsched_clock_set,
.gpu_bus_set = a6xx_hwsched_bus_set,
};
const struct adreno_hwsched_ops a6xx_hwsched_ops = {
.submit_drawobj = a6xx_hwsched_submit_drawobj,
.preempt_count = a6xx_hwsched_preempt_count_get,
};
int a6xx_hwsched_probe(struct platform_device *pdev,
u32 chipid, const struct adreno_gpu_core *gpucore)
{
struct adreno_device *adreno_dev;
struct kgsl_device *device;
struct a6xx_hwsched_device *a6xx_hwsched_dev;
int ret;
a6xx_hwsched_dev = devm_kzalloc(&pdev->dev, sizeof(*a6xx_hwsched_dev),
GFP_KERNEL);
if (!a6xx_hwsched_dev)
return -ENOMEM;
adreno_dev = &a6xx_hwsched_dev->a6xx_dev.adreno_dev;
adreno_dev->hwsched_enabled = true;
adreno_dev->irq_mask = A6XX_HWSCHED_INT_MASK;
ret = a6xx_probe_common(pdev, adreno_dev, chipid, gpucore);
if (ret)
return ret;
device = KGSL_DEVICE(adreno_dev);
INIT_WORK(&device->idle_check_ws, hwsched_idle_check);
timer_setup(&device->idle_timer, hwsched_idle_timer, 0);
return adreno_hwsched_init(adreno_dev, &a6xx_hwsched_ops);
}
int a6xx_hwsched_add_to_minidump(struct adreno_device *adreno_dev)
{
struct a6xx_device *a6xx_dev = container_of(adreno_dev,
struct a6xx_device, adreno_dev);
struct a6xx_hwsched_device *a6xx_hwsched = container_of(a6xx_dev,
struct a6xx_hwsched_device, a6xx_dev);
struct a6xx_hwsched_hfi *hw_hfi = &a6xx_hwsched->hwsched_hfi;
int ret, i;
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev, KGSL_HWSCHED_DEVICE,
(void *)(a6xx_hwsched), sizeof(struct a6xx_hwsched_device));
if (ret)
return ret;
if (!IS_ERR_OR_NULL(a6xx_dev->gmu.gmu_log)) {
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
KGSL_GMU_LOG_ENTRY,
a6xx_dev->gmu.gmu_log->hostptr,
a6xx_dev->gmu.gmu_log->size);
if (ret)
return ret;
}
if (!IS_ERR_OR_NULL(a6xx_dev->gmu.hfi.hfi_mem)) {
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
KGSL_HFIMEM_ENTRY,
a6xx_dev->gmu.hfi.hfi_mem->hostptr,
a6xx_dev->gmu.hfi.hfi_mem->size);
if (ret)
return ret;
}
if (!IS_ERR_OR_NULL(a6xx_dev->gmu.vrb)) {
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
KGSL_GMU_VRB_ENTRY,
a6xx_dev->gmu.vrb->hostptr,
a6xx_dev->gmu.vrb->size);
if (ret)
return ret;
}
if (!IS_ERR_OR_NULL(a6xx_dev->gmu.dump_mem)) {
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
KGSL_GMU_DUMPMEM_ENTRY,
a6xx_dev->gmu.dump_mem->hostptr,
a6xx_dev->gmu.dump_mem->size);
if (ret)
return ret;
}
if (!IS_ERR_OR_NULL(a6xx_dev->gmu.trace.md)) {
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
KGSL_GMU_TRACE_ENTRY,
a6xx_dev->gmu.trace.md->hostptr,
a6xx_dev->gmu.trace.md->size);
if (ret)
return ret;
}
/* Dump HFI hwsched global mem alloc entries */
for (i = 0; i < hw_hfi->mem_alloc_entries; i++) {
struct hfi_mem_alloc_entry *entry = &hw_hfi->mem_alloc_table[i];
char hfi_minidump_str[MAX_VA_MINIDUMP_STR_LEN] = {0};
u32 rb_id = 0;
if (!hfi_get_minidump_string(entry->desc.mem_kind,
&hfi_minidump_str[0],
sizeof(hfi_minidump_str), &rb_id)) {
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
hfi_minidump_str,
entry->md->hostptr,
entry->md->size);
if (ret)
return ret;
}
}
if (!IS_ERR_OR_NULL(hw_hfi->big_ib)) {
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
KGSL_HFI_BIG_IB_ENTRY,
hw_hfi->big_ib->hostptr,
hw_hfi->big_ib->size);
if (ret)
return ret;
}
if (!IS_ERR_OR_NULL(hw_hfi->big_ib_recurring))
ret = kgsl_add_va_to_minidump(adreno_dev->dev.dev,
KGSL_HFI_BIG_IB_REC_ENTRY,
hw_hfi->big_ib_recurring->hostptr,
hw_hfi->big_ib_recurring->size);
return ret;
}