In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of just
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple fallthrough pseudo-keyword macros,
as replacement for /* fall through */ comments.

Notice that Clang doesn't recognize /* fall through */ comments as
implicit fall-through markings.

Link: https://github.com/KSPP/linux/issues/115Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of just
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

The HDCP feature requires at least one connector attached to the device;
however, some GPUs do not have a physical output, making the HDCP
initialization irrelevant. This patch disables HDCP initialization when
the graphic card does not have output.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We only need to arbitrate VGA access on VGA compatible devices.
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fix check_patch.pl warning:
WARNING: Prefer kmalloc_array over kmalloc with multiply
+bps = kmalloc(align_space * sizeof((*data)->bps), GFP_KERNEL);
WARNING: Prefer kmalloc_array over kmalloc with multiply
+bps_bo = kmalloc(align_space * sizeof((*data)->bps_bo),
GFP_KERNEL);
kmalloc_array has multiply overflow check, which will be safer.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Bernard Zhao <bernard@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fix check_patch.pl warning:
kmalloc_array uses number as first arg, sizeof is generally wrong.
+fences = kmalloc_array(sizeof(void *), id_mgr->num_ids,
GFP_KERNEL);
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Bernard Zhao <bernard@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Support software ring share memory with vcn firmware.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Add dec software ring vm functions to support.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Add vcn software ring decode ring test and decode ib test.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Add macro, structure and function prototype to
support vcn dec software ring.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

refactor dec message functions to add dec software ring support.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Default runtime logic not changed.
Provide an alternative runtime method. (set 1 to use BACO; 2 to use BAMACO)
When set reset_method to 4, it will use BACO or BAMACO for gpu reset,
according to runpm value.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Some features are still disabled after runtime pm resume. This can take
the hardware back.
Unlike other projects, this doesn't need pptable retransfer.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

The UVD firmware is copied to cpu addr in uvd_resume, so it
should be used after that. This is to fix a bug introduced by
patch drm/amdgpu: fix SI UVD firmware validate resume fail.
Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Using KIQ to map GFX queues instead of MMIO for gfx async ring,
add missing doorbell range setting.

v2: fix typo
Signed-off-by: Jinzhou.Su <Jinzhou.Su@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

This has been confirmed that unload message is not needed from SIENNA_CICHLID in reset.
Otherwise it will cause the fw wrong state after reset and no response for any messages.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

fix the null pointer issue when runtime pm is triggered.
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

dpcs reg are missing for dcn302 link encoder regs list, so add them.
Just like dcn3
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

The SI UVD firmware validate key is stored at the end of firmware,
which is changed during resume while playing video. So get the key
at sw_init and store it for fw validate using.
Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Add device id for dimgrey_cavefish.
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Jiansong Chen <Jiansong.Chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

add device ID for navy_flounder

v2: squash in updates
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

[Why]
These comments are helpful in understanding which case each if
statement handles.

[How]
Add comments for state transitions (9 possible cases)
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

[Why]
We call add display multiple times because DESIRED->ENABLED cannot
happen instantaneously. We can't compare the new_state/old_state to
avoid this because on unplug we set the state to DESIRED and on hotplug
the state will still be DESIRED.

[How]
Add a flag to dm_connector_state to keep track of when to enable or
disable HDCP
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

There is no need to reset DPM for PPTable uploading on
dimgrey_cavefish and PMFW can handle it, same as navy_flounder.
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Jiansong Chen <Jiansong.Chen@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Allocate smu_power->power_context to size of smu_11_0_power_context instead of
smu_11_0_dpm_context.
Signed-off-by: Ryan Taylor <Ryan.Taylor@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

We recently improved our display atomic commit and tail sequence to
avoid some issues related to concurrency. One of the major changes
consisted of moving the interrupt disable and the stream release from
our atomic commit to our atomic tail (commit 6d90a208
("drm/amd/display: Move disable interrupt into commit tail")) .
However, the new code introduced inside our commit tail function was
inserted right after the function
drm_atomic_helper_update_legacy_modeset_state(), which has routines for
updating internal data structs related to timestamps. As a result, in
certain conditions, the display module can reach a situation where we
update our constants and, after that, clean it. This situation generates
the following warning:

 amdgpu 0000:03:00.0: drm_WARN_ON_ONCE(drm_drv_uses_atomic_modeset(dev))
 WARNING: CPU: 6 PID: 1269 at drivers/gpu/drm/drm_vblank.c:722
 drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x32b/0x340 [drm]
 ...
 RIP:
 0010:drm_crtc_vblank_helper_get_vblank_timestamp_internal+0x32b/0x340
 [drm]
 ...
 Call Trace:
  ? dc_stream_get_vblank_counter+0x57/0x60 [amdgpu]
  drm_crtc_vblank_helper_get_vblank_timestamp+0x1c/0x20 [drm]
  drm_get_last_vbltimestamp+0xad/0xc0 [drm]
  drm_reset_vblank_timestamp+0x63/0xd0 [drm]
  drm_crtc_vblank_on+0x85/0x150 [drm]
  amdgpu_dm_atomic_commit_tail+0xaf1/0x2330 [amdgpu]
  commit_tail+0x99/0x130 [drm_kms_helper]
  drm_atomic_helper_commit+0x123/0x150 [drm_kms_helper]
  amdgpu_dm_atomic_commit+0x11/0x20 [amdgpu]
  drm_atomic_commit+0x4a/0x50 [drm]
  drm_atomic_helper_set_config+0x7c/0xc0 [drm_kms_helper]
  drm_mode_setcrtc+0x20b/0x7e0 [drm]
  ? tomoyo_path_number_perm+0x6f/0x200
  ? drm_mode_getcrtc+0x190/0x190 [drm]
  drm_ioctl_kernel+0xae/0xf0 [drm]
  drm_ioctl+0x245/0x400 [drm]
  ? drm_mode_getcrtc+0x190/0x190 [drm]
  amdgpu_drm_ioctl+0x4e/0x80 [amdgpu]
  __x64_sys_ioctl+0x91/0xc0
  do_syscall_64+0x38/0x90
  entry_SYSCALL_64_after_hwframe+0x44/0xa9
 ...

For fixing this issue we rely upon a refactor introduced on
drm_atomic_helper_update_legacy_modeset_state ("Remove the timestamping
constant update from drm_atomic_helper_update_legacy_modeset_state()")
which decouples constant values update from
drm_atomic_helper_update_legacy_modeset_state to a new helper.
Basically, this commit uses this new helper and place it right after our
release module to avoid a situation where our CRTC struct gets wrong
values.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1373Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

There are two spelling mistakes in dev_warn messages. Fix these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Those functions should be invoked through gfxhub.funcs
pointer.
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

The PPTable provided by VBIOS can be used.
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Jiansong Chen <Jiansong.Chen@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Also removing the call to amdgpu_atombios_encoder_get_backlight_level_from_reg()
since, according to Alex Deucher, "We call it again below indirectly".

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/atombios_encoders.c: In function ‘amdgpu_atombios_encoder_init_backlight’:
 drivers/gpu/drm/amd/amdgpu/atombios_encoders.c:174:5: warning: variable ‘backlight_level’ set but not used [-Wunused-but-set-variable]

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Luben Tuikov <luben.tuikov@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/radeon_prime.c:43:24: warning: no previous prototype for ‘radeon_gem_prime_import_sg_table’ [-Wmissing-prototypes]
 43 | struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev,
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Gareth Hughes <gareth@valinux.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/r600_hdmi.c:177:6: warning: no previous prototype for ‘r600_hdmi_update_acr’ [-Wmissing-prototypes]
 177 | void r600_hdmi_update_acr(struct drm_encoder *encoder, long offset,
 | ^~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/r600_hdmi.c:217:6: warning: no previous prototype for ‘r600_set_avi_packet’ [-Wmissing-prototypes]
 217 | void r600_set_avi_packet(struct radeon_device *rdev, u32 offset,
 | ^~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/r600_hdmi.c:314:6: warning: no previous prototype for ‘r600_hdmi_audio_set_dto’ [-Wmissing-prototypes]
 314 | void r600_hdmi_audio_set_dto(struct radeon_device *rdev,
 | ^~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/r600_hdmi.c:340:6: warning: no previous prototype for ‘r600_set_vbi_packet’ [-Wmissing-prototypes]
 340 | void r600_set_vbi_packet(struct drm_encoder *encoder, u32 offset)
 | ^~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/r600_hdmi.c:351:6: warning: no previous prototype for ‘r600_set_audio_packet’ [-Wmissing-prototypes]
 351 | void r600_set_audio_packet(struct drm_encoder *encoder, u32 offset)
 | ^~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/r600_hdmi.c:393:6: warning: no previous prototype for ‘r600_set_mute’ [-Wmissing-prototypes]
 393 | void r600_set_mute(struct drm_encoder *encoder, u32 offset, bool mute)
 | ^~~~~~~~~~~~~
 drivers/gpu/drm/radeon/r600_hdmi.c:469:6: warning: no previous prototype for ‘r600_hdmi_enable’ [-Wmissing-prototypes]
 469 | void r600_hdmi_enable(struct drm_encoder *encoder, bool enable)
 | ^~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/r600_cs.c:2343:5: warning: no previous prototype for ‘r600_dma_cs_next_reloc’ [-Wmissing-prototypes]
 2343 | int r600_dma_cs_next_reloc(struct radeon_cs_parser *p,
 | ^~~~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/vce_v2_0.c:111:6: warning: no previous prototype for ‘vce_v2_0_enable_mgcg’ [-Wmissing-prototypes]
 111 | void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable)
 | ^~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/vce_v1_0.c:102:6: warning: no previous prototype for ‘vce_v1_0_enable_mgcg’ [-Wmissing-prototypes]
 102 | void vce_v1_0_enable_mgcg(struct radeon_device *rdev, bool enable)
 | ^~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/cik_sdma.c:331:6: warning: no previous prototype for ‘cik_sdma_enable’ [-Wmissing-prototypes]
 331 | void cik_sdma_enable(struct radeon_device *rdev, bool enable)
 | ^~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/cik_sdma.c:528:5: warning: no previous prototype for ‘cik_sdma_resume’ [-Wmissing-prototypes]
 528 | int cik_sdma_resume(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/cik_sdma.c:557:6: warning: no previous prototype for ‘cik_sdma_fini’ [-Wmissing-prototypes]
 557 | void cik_sdma_fini(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/si_dpm.c:3802:4: warning: no previous prototype for ‘si_get_ddr3_mclk_frequency_ratio’ [-Wmissing-prototypes]
 3802 | u8 si_get_ddr3_mclk_frequency_ratio(u32 memory_clock)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/si_dpm.c:3815:4: warning: no previous prototype for ‘si_get_mclk_frequency_ratio’ [-Wmissing-prototypes]
 3815 | u8 si_get_mclk_frequency_ratio(u32 memory_clock, bool strobe_mode)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/si_dpm.c:3897:6: warning: no previous prototype for ‘si_trim_voltage_table_to_fit_state_table’ [-Wmissing-prototypes]
 3897 | void si_trim_voltage_table_to_fit_state_table(struct radeon_device *rdev,
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/cik.c:6413:6: warning: no previous prototype for ‘cik_init_cp_pg_table’ [-Wmissing-prototypes]
 6413 | void cik_init_cp_pg_table(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/cik.c:6670:5: warning: no previous prototype for ‘cik_get_csb_size’ [-Wmissing-prototypes]
 6670 | u32 cik_get_csb_size(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/cik.c:6702:6: warning: no previous prototype for ‘cik_get_csb_buffer’ [-Wmissing-prototypes]
 6702 | void cik_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer)
 | ^~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/cik.c:4845:5: warning: no previous prototype for ‘cik_gpu_check_soft_reset’ [-Wmissing-prototypes]
 4845 | u32 cik_gpu_check_soft_reset(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>