interconnect: Fix locking for runpm vs reclaim

In the Linux kernel, the following vulnerability has been resolved:

interconnect: Fix locking for runpm vs reclaim

For cases where icc_bw_set() can be called in callbaths that could

deadlock against shrinker/reclaim, such as runpm resume, we need to

decouple the icc locking. Introduce a new icc_bw_lock for cases where

we need to serialize bw aggregation and update to decouple that from

paths that require memory allocation such as node/link creation/

destruction.

Fixes this lockdep splat:

======================================================

WARNING: possible circular locking dependency detected

6.2.0-rc8-debug+ #554 Not tainted

------------------------------------------------------

ring0/132 is trying to acquire lock:

ffffff80871916d0 (&gmu->lock){+.+.}-{3:3}, at: a6xx_pm_resume+0xf0/0x234

but task is already holding lock:

ffffffdb5aee57e8 (dma_fence_map){++++}-{0:0}, at: msm_job_run+0x68/0x150

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #4 (dma_fence_map){++++}-{0:0}:

__dma_fence_might_wait+0x74/0xc0

dma_resv_lockdep+0x1f4/0x2f4

do_one_initcall+0x104/0x2bc

kernel_init_freeable+0x344/0x34c

kernel_init+0x30/0x134

ret_from_fork+0x10/0x20

-> #3 (mmu_notifier_invalidate_range_start){+.+.}-{0:0}:

fs_reclaim_acquire+0x80/0xa8

slab_pre_alloc_hook.constprop.0+0x40/0x25c

__kmem_cache_alloc_node+0x60/0x1cc

__kmalloc+0xd8/0x100

topology_parse_cpu_capacity+0x8c/0x178

get_cpu_for_node+0x88/0xc4

parse_cluster+0x1b0/0x28c

parse_cluster+0x8c/0x28c

init_cpu_topology+0x168/0x188

smp_prepare_cpus+0x24/0xf8

kernel_init_freeable+0x18c/0x34c

kernel_init+0x30/0x134

ret_from_fork+0x10/0x20

-> #2 (fs_reclaim){+.+.}-{0:0}:

__fs_reclaim_acquire+0x3c/0x48

fs_reclaim_acquire+0x54/0xa8

slab_pre_alloc_hook.constprop.0+0x40/0x25c

__kmem_cache_alloc_node+0x60/0x1cc

__kmalloc+0xd8/0x100

kzalloc.constprop.0+0x14/0x20

icc_node_create_nolock+0x4c/0xc4

icc_node_create+0x38/0x58

qcom_icc_rpmh_probe+0x1b8/0x248

platform_probe+0x70/0xc4

really_probe+0x158/0x290

__driver_probe_device+0xc8/0xe0

driver_probe_device+0x44/0x100

__driver_attach+0xf8/0x108

bus_for_each_dev+0x78/0xc4

driver_attach+0x2c/0x38

bus_add_driver+0xd0/0x1d8

driver_register+0xbc/0xf8

__platform_driver_register+0x30/0x3c

qnoc_driver_init+0x24/0x30

do_one_initcall+0x104/0x2bc

kernel_init_freeable+0x344/0x34c

kernel_init+0x30/0x134

ret_from_fork+0x10/0x20

-> #1 (icc_lock){+.+.}-{3:3}:

__mutex_lock+0xcc/0x3c8

mutex_lock_nested+0x30/0x44

icc_set_bw+0x88/0x2b4

_set_opp_bw+0x8c/0xd8

_set_opp+0x19c/0x300

dev_pm_opp_set_opp+0x84/0x94

a6xx_gmu_resume+0x18c/0x804

a6xx_pm_resume+0xf8/0x234

adreno_runtime_resume+0x2c/0x38

pm_generic_runtime_resume+0x30/0x44

__rpm_callback+0x15c/0x174

rpm_callback+0x78/0x7c

rpm_resume+0x318/0x524

__pm_runtime_resume+0x78/0xbc

adreno_load_gpu+0xc4/0x17c

msm_open+0x50/0x120

drm_file_alloc+0x17c/0x228

drm_open_helper+0x74/0x118

drm_open+0xa0/0x144

drm_stub_open+0xd4/0xe4

chrdev_open+0x1b8/0x1e4

do_dentry_open+0x2f8/0x38c

vfs_open+0x34/0x40

path_openat+0x64c/0x7b4

do_filp_open+0x54/0xc4

do_sys_openat2+0x9c/0x100

do_sys_open+0x50/0x7c

__arm64_sys_openat+0x28/0x34

invoke_syscall+0x8c/0x128

el0_svc_common.constprop.0+0xa0/0x11c

do_el0_

---truncated---