resume and irq handler happily races in set_power_state()

* amdgpu_legacy_dpm_compute_clocks() needs lock
* protect irq work handler
* fix dpm_enabled usage

v2: fix clang build, integrate Lijo's comments (Alex)

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2524
Fixes: 3712e7a49459 ("drm/amd/pm: unified lock protections in amdgpu_dpm.c")
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> # on Oland PRO
Signed-off-by: chr[] <chris@rudorff.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ee3dc9e204d271c9c7a8d4d38a0bce4745d33e71)
Cc: stable@vger.kernel.org

Some of the firmware that is loaded by amdgpu is not actually required.
For example the ISP firmware on some SoCs is optional, and if it's not
present the ISP IP block just won't be initialized.

The firmware loader core however will show a warning when this happens
like this:
```
Direct firmware load for amdgpu/isp_4_1_0.bin failed with error -2
```

To avoid confusion for non-required firmware, adjust the amd-ucode helper
to take an extra argument indicating if the firmware is required or
optional.

On optional firmware use firmware_request_nowarn() instead of
request_firmware() to avoid the warnings.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/amd-gfx/df71d375-7abd-4b32-97ce-15e57846eed8@amd.com/T/#t
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Pass ip_block instead of adev in set_clockgating_state() callback
functions. Modify set_clockgating_state()for all correspoding ip blocks.

v2: remove all changes for is_idle(), remove type casting

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Pass ip_block instead of adev in set_powergating_state callback function.
Modify set_powergating_state ip functions for all correspoding ip blocks.

v2: fix a ip block index error.

v3: remove type casting

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Add an instance parameter to set_powergating_by_smu() function, and
re-write all amd_pm functions accordingly. Then use the instance to
call smu_dpm_set_vcn_enable().

v2: remove duplicated functions.

remove for-loop in smu_dpm_set_power_gate(), and temporarily move it to
to amdgpu_dpm_set_powergating_by_smu(), in order to keep the exact same
logic as before, until further separation in next patch.

v3: add instance number in error message.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We dont need to set the functions to NULL which arent
needed as global structure members are by default
set to zero or NULL for pointers.

Cc: Leo Liu <leo.liu@amd.com>
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Remove the dummy soft_reset functions for all
ip blocks.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Remove the dummy wait_for_idle functions for all
ip blocks.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Update the *handle to amdgpu_ip_block ptr for all
functions pointers of hw_fini.

Also update the ip_block ptr where ever needed as
there were cyclic dependency of hw_fini on suspend
and some followed clean up.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Update the *handle to amdgpu_ip_block ptr for all
functions pointers of hw_init.

Also update the ip_block ptr where ever needed as
there were cyclic dependency of hw_init on resume.

v2: squash in isp fix

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>