amdgpu/dc: Fix double unlock in amdgpu_dm_commit_planes

Reported by smartch:
amdgpu_dm_commit_planes() error: double unlock 'spin_lock:&crtc->dev->event_lock'
amdgpu_dm_commit_planes() error: double unlock 'irqsave:flags'

The error path doesn't return so we only need a single unlock.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: Fix missing null checks in amdgpu_dm.c

From smatch:
error: we previously assumed X could be null

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: Fix potential null dereferences in amdgpu_dm.c

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: fix more indentation warnings

More "warn: inconsistent indenting" fixes from smatch.

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Ernst Sjöstrand <ernstp@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: handle allocation failures in dc_commit_planes_to_stream.

Reported-by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:966 dc_commit_planes_to_stream() error: potential null dereference 'flip_addr'.  (kcalloc returns null)
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:968 dc_commit_planes_to_stream() error: potential null dereference 'plane_info'.  (kcalloc returns null)
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:978 dc_commit_planes_to_stream() error: potential null dereference 'scaling_info'.  (kcalloc returns null)

Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: fix indentation warning from smatch.

This fixes all the current smatch:
warn: inconsistent indenting

Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: fix non-ansi function decls.

smatch reported:
drivers/gpu/drm/amd/amdgpu/../display/dc/bios/dce80/command_table_helper_dce80.c:351:71: warning: non-ANSI function declaration of function 'dal_cmd_tbl_helper_dce80_get_table'
drivers/gpu/drm/amd/amdgpu/../display/dc/bios/dce110/command_table_helper_dce110.c:361:72: warning: non-ANSI function declaration of function 'dal_cmd_tbl_helper_dce110_get_table'
drivers/gpu/drm/amd/amdgpu/../display/dc/bios/dce112/command_table_helper_dce112.c:415:72: warning: non-ANSI function declaration of function 'dal_cmd_tbl_helper_dce112_get_table'
drivers/gpu/drm/amd/amdgpu/../display/dc/bios/dce112/command_table_helper2_dce112.c:415:73: warning: non-ANSI function declaration of function 'dal_cmd_tbl_helper_dce112_get_table2'
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_surface.c:148:34: warning: non-ANSI function declaration of function 'dc_create_gamma'
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_surface.c:178:50: warning: non-ANSI function declaration of function 'dc_create_transfer_func'

This fixes them.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: remove some unneeded code

We assign "v_init = asic_blank_start;" a few lines earlier so there is
no need to do it again inside the if statements.  Also "v_init" is
unsigned so it can't be less than zero.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: checking for NULL instead of IS_ERR()

backlight_device_register() never returns NULL, it returns error
pointers on error so the check here is wrong.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: small cleanup in destruct()

Static analysis tools get annoyed that we don't indent this if
statement.  Actually, the if statement isn't required because kfree()
can handle NULL pointers just fine.  The DCE110STRENC_FROM_STRENC()
macro is a wrapper around container_of() but it's basically a no-op or a
cast.  Anyway, it's not really appropriate here so it should be removed
as well.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Merge branch 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux into drm-next

A few fixes for DC for 4.15.

* 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu/display: fix integer arithmetic problem
  drm/amdgpu/display: remove unused REG_OFFSET macro
  drm/amdgpu/display: provide ASSERT macros unconditionally
  drm/amd/display: Read resource_straps from registers for DCE12
  drm/amd: Add DCE12 resource strap registers
  drm/amd/display: Explicitly call ->reset for each object
  drm/amd/display: Use single fail label in init_drm_dev
  drm/amd/display: Use plane pointer to avoid line breaks
  drm/amd/display: fix null pointer dereference
  amdgpu/dc: Avoid dereferencing NULL pointer
  drm/amd/display: Don't print error when bo_pin is interrupted
  drm/amd/display: Use constants from atom.h for HDMI caps read
  drm/amd/display: check if modeset is required before adding plane
  drm/amd/display: fix high part address in dm_plane_helper_prepare_fb()
  drm/amd/display : add high part address calculation for underlay
  drm/amd/display: Fix no display on Fiji
  Revert "drm/amd/display: Match actual state during S3 resume."

drm/amdgpu/display: fix integer arithmetic problem

gcc warns about an ambiguous integer calculation:

drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function 'calculate_bandwidth':
drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:534:5: error: this decimal constant is unsigned only in ISO C90 [-Werror]
     data->lb_line_pitch = bw_ceil2(bw_mul(bw_div(bw_frc_to_fixed(2401171875, 100000000), bw_int_to_fixed(3)), bw_ceil2(data->source_width_in_lb, bw_int_to_fixed(8))), bw_int_to_fixed(48));
     ^~~~

Marking the constant as explicitly unsigned makes it work fine everywhere
without warnings.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu/display: remove unused REG_OFFSET macro

The name conflicts with another macro of the same name on the ARM ixp4xx
platform, leading to build errors.
Neither of the users actually should use a name that generic, but the
other one was here first and the dc driver doesn't actually use it.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amdgpu/display: provide ASSERT macros unconditionally

It seems impossible to build this driver without setting either
CONFIG_DEBUG_KERNEL or CONFIG_DEBUG_DRIVER:

drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h: In function 'set_reg_field_value_ex':
drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:132:2: error: implicit declaration of function 'ASSERT'; did you mean 'IS_ERR'? [-Werror=implicit-function-declaration]

This moves the ASSERT() macro and related helpers outside of
the #ifdef to get it to build again.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Read resource_straps from registers for DCE12

Now that the registers exist, assign them to the resource_straps struct.

v2: Fix indentation
v3: Fix trailing whitespace and checkpatch warnings.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=103404
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd: Add DCE12 resource strap registers

We need them for initializing audio properly.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Explicitly call ->reset for each object

We need to avoid calling reset after detection because the next
commit adds freesync properties on the atomic_state which are set
during detection. Calling reset after this clears them.

The easiest way to accomplish this right now is to call ->reset on
the connector right after creation but before detection. To stay
consistent call ->reset on every other object as well after creation.

v2: Provide better reason for this change in commit msg.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Use single fail label in init_drm_dev

No need for multiple labels as kfree will always do a NULL check
before freeing the memory.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Use plane pointer to avoid line breaks

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: fix null pointer dereference

While setting cursor position in case of mpo,
input_pixel_processor is not available for underlay,
hence add check of the same to avoid null pointer
access issue.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: Avoid dereferencing NULL pointer

crtc is dereferenced from within drm_atomic_get_new_crtc_state, so
check for NULL before initializing new_crtc_state.

Signed-off-by: Drew Davenport <ddavenport@chromium.org>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Don't print error when bo_pin is interrupted

v2: Also don't print for ERESTARTSYS or EAGAIN
v3: Best practice is to only ignore ERESTARTSYS

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Use constants from atom.h for HDMI caps read

Get rid of the constant we copied over before and just directly use the
constants from the file.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: check if modeset is required before adding plane

Adding affected planes without checking if modeset is requested from the user space causes performance regression in video p/b scenarios when full screen p/b is not composited.

Hence add a check before adding a plane as affected.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=103408

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Shirish S <shirish.s@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: fix high part address in dm_plane_helper_prepare_fb()

The high part calculation of luma and chroma address' was
missing in dm_plane_helper_prepare_fb().

This fix brings uniformity in the address' at atomic_check
and atomic_commit for both RGB & YUV planes.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display : add high part address calculation for underlay

Currently the high part of the address structure is not
populated in case of luma and chroma.
This patch adds this calculation.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix no display on Fiji

Allocate memory for the second pipe allocate_mem_input() needs to
be done prior to program pipe front end. It shows sensitive to
Fiji. Failure to do so will cause error in allocate memory 
allocate_mem_input() on the second connected display.

Signed-off-by: Jerry Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Revert "drm/amd/display: Match actual state during S3 resume."

This reverts commit 4f346e655d24140fb40b46f814506ba17ac34ea1.

fix s3 hang issue.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Merge branch 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux into drm-next

Last batch of new stuff for DC. Highlights:
- Fix some memory leaks
- S3 fixes
- Hotplug fixes
- Fix some CX multi-display issues
- MST fixes
- DML updates from the hw team
- Various code cleanups
- Misc bug fixes

* 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux: (155 commits)
  drm/amd/display:: Fix NULL pointer in Raven hotplug
  drm/amd/display: Fix memoryleak during S3 resume.
  drm/amd/display: add hardware_planes_only to list of affected planes
  drm/amd/display: Fix brace style
  drm/amd/display: Remove needless cast in amdgpu_dm_connector_init()
  drm/amd/display: Fix brace style in amdgpu_dm_connector_ddc_get_modes()
  drm/amd/display: Tidy up dm_drm_plane_reset()
  drm/amd/display: Fix indentation in create_eml_sink()
  drm/amd/display: Replace block with strncpy() in fill_audio_info()
  drm/amd/display: Fix brace style in amdgpu_dm_initialize_drm_device()
  drm/amd/display: Simplify handle_hpd_rx_irq()
  drm/amd/display: Fix brace style in dm_handle_hpd_rx_irq()
  drm/amd/display: Fix brace style in amdgpu_dm_update_connector_after_detect()
  drm/amd/display: Fix indentation in dm_resume()
  drm/amd/display: Fix indentation in dm_suspend()
  drm/amd/display: Simplify dm_late_init()
  amdgpu/dc: inline dml_round_to_multiple
  amdgpu/dc: drop dml_util_is_420
  drm/amd/display: Add bunch of missing license headers in DML
  amdgpu/dc: inline a bunch of the dml wrappers.
  ...

drm/amd/display:: Fix NULL pointer in Raven hotplug

Programming sequence to frontend and backend has been switched.
In such case, program_scaler() is getting called when programming
frontend, and should be removed from backend programming routine.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix memoryleak during S3 resume.

Do not create dc_state within display_resume, since it's being
constructed within atomic check.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add hardware_planes_only to list of affected planes

For SoC's having software designed cursor plane,
should be treated differently than hardware cursor planes.

The DRM core initializes cursor plane by default with
legacy_cursor_update set.

Hence legacy_cursor_update can be use effectively
to handle software cursor planes' update and atomicity
functionalities.

This patch uses this variable to decide in the atomic_check
to whether add a requested plane to the list of affected planes or
not, hence fixing the issue of co-existence of MPO, i.e,
setting of available hardware planes like underlay and
updation of cursor planes as well.

Without this patch when underlay is set from user space,
only blank screen with backlight is visible.

Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix brace style

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Remove needless cast in amdgpu_dm_connector_init()

The cast of dc_link is redundant.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix brace style in amdgpu_dm_connector_ddc_get_modes()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Tidy up dm_drm_plane_reset()

Move WARN_ON higher up and in doing so fix brace style.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix indentation in create_eml_sink()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Replace block with strncpy() in fill_audio_info()

Replace inlined strncpy with library call.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix brace style in amdgpu_dm_initialize_drm_device()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Simplify handle_hpd_rx_irq()

There is a local reference to the dc_link that wasn't being
used so we shorten references throughout the function.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix brace style in dm_handle_hpd_rx_irq()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix brace style in amdgpu_dm_update_connector_after_detect()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix indentation in dm_resume()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix indentation in dm_suspend()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Simplify dm_late_init()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Andrey Grodzovsky <andey.grodzovsky@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: inline dml_round_to_multiple

turns out to be a win to inline this.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: drop dml_util_is_420

This is unused code.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add bunch of missing license headers in DML

All files should have MIT headers.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/dc: inline a bunch of the dml wrappers.

This reduces the code size.

This is basically a redo of Dave's change with the same name
on top of the latest DML.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Small comment on dc_commit_planes_to_stream

Having one struct on the stack was somewhat confusing. Also mention
that the whole function should eventually go.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Minor update to DML

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: change dml numdpp var to uint

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: default force_single_disp_pipe_split = 1 on RV

1080p idle, stutter efficiency goes up from 95.8% to 97.8%
result in 5mW saving from APU and 8mW saving from DDR4

Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Remove redundant condition in dml vba

Found by 0-day
https://lists.freedesktop.org/archives/dri-devel/2017-October/154698.html

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: dal 3.1.07

- regression fixes in dal 3.1.06
- more linux upstream backport

Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Reduce stack size of commit_planes_to_stream

This function likes to blow 1024 stack size when something is
added to the addr struct. For now just dynamically allocate.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix one more place for dc_stream_state leak

One more thing that happened due to uneven applying of patches. This
mirrors what Darren Salt fixed.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Move OS types to os_types.h

Some of this stuff is not really dm_services

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: LGD panel willl flash line under window

Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: DAL 3.1.06

Raven bug fixes
- RS3 MPO stability improvement
- SLS fixes
- AM4 fixes

DAL 3.1
- merge in upstream patches from DRM maintainer Dave Arilie
- hubp, dpp HW objects

Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: rename dscl functions

Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: WA for 3 display play video hot plug.

Three monitor connected and playing a video will
occupy all 4 pipes, if hot plug forth display,
commit streams will be failed due to no free pipe
can be found.
Work around:
When forth monitor connected, mark video plane as
a fake plane, remove it in dc, keep it in dm and
report address to OS, until OS turn off MPO.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add DIGD case when getting retimer settings

One of the HDMI ports map to DIGD, which we did not map to DP3 ext
HDMI settings. Add the DIGD case so that we can get proper retimer
settings from SBIOS for that port.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add chip mask to HDMI retimer/redriver check

There were cases where the chip caps held additional bits that led to
the retimer/redriver check failing; use the proper mask to ensure that
we have only the bits that we care about for the check in question.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Correct timings in build scaling params

A previous patch set the addressable timing as active + border,
when in fact, the VESA standard specifies active as equal to
addressable + border.

This patch makes the fix more correct and in line with the standard.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: check SR_WATERMARK regs prior to write

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: drop display_pipe_clocks.c.

This code isn't used at all in the kernel tree, perhaps it can wait to
be imported when it is. It also does a lot of floating point calcs,
so probably good to drop it until it's needed and we can ensure
proper fpu accessors.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix up some whitespace in handle_cursor_update

Use combo of tabs and spaces

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix warning about uninitialized variable

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Don't set cursor address is 0 logging as errors

This actually happens quite a bit, and having it as an error causes
false positive messages when running tests.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: fix ifnullfree.cocci warnings

drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_service.c:134:3-8: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_service.c:175:4-9: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.

 NULL check before some freeing functions is not needed.

 Based on checkpatch warning
 "kfree(NULL) is safe this check is probably not required"
 and kfreeaddr.cocci by Julia Lawall.

Generated by: scripts/coccinelle/free/ifnullfree.cocci

Fixes: f09cd1f46388 ("drm/amd/display: Use kernel alloc/free")
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/dc: fix semicolon.cocci warnings

drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/gpio_service.c:134:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Fixes: 80be23c57868 ("drm/amd/dc: Add dc display driver (v2)")
CC: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix warning about overflow

v2: convert value to bool using !!

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix non-DCN build

Acquire_first_split_pipe only makes sense for DCN.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: ASSERT on dc_create_state failing.

dc_create_state() returns NULL on allocation failure. Raise warning when
that happens.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Report stream as different on scaling change

When scaling is enabled, our preference is to scale up to the prefered
(native) mode. This means that hardware timings will be the same across
a modeset.

Therefore, also report mode as changed if source or destination
rectangle is different.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Set addressable region as active + border

This ensures that we do not draw the blank region onscreen, and that we
do underscan instead.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add performance trace macro to dc

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Remove a false-positive error message

To avoid confusion, need to suppress the error message when get
-ERESTARTSYS error code. It is normal when getting interrupted
by signals in the process of a wait for the buffer to become
unreserved. Only propagate to user-mode for further action,
no need to pop up error message.

Signed-off-by: Jerry Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Do not set bandwidth on page flips.

Which removes a lockdep warning for a possible deadlock situation:

While holding the drm event mutex (hard irq safe),
dc_post_update_surfaces_to_stream eventually acquires the atom context
lock, which is hard irq unsafe. We should only be calling it on full
updates anyways.

Also remove a redundant call to dc_post_update_surfaces_to_stream,
dc_commit_updates_for_stream already calls it.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: rename transform to dpp for dcn

Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add null check for cursor functions

Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: fix null dereference in reset hw ctx

Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix a logic defect in cursor move

Regression caused by: Ib98354194d7

Need to check crtc->stream before updating cursor attributes
and position.

Signed-off-by: Jerry Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: [RV] bug in cm programming

When surface bigger then 10 bpc the output pixel
does not match to the required value.Update CRC's.

Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Reviewed-by: Jordan Lazare <Jordan.Lazare@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: change when to set tap_hardcode_coeff

Set hardcode_coeff only when BOTH chroma and luma taps are
more than 1

without this underscan with h or v set to 0 darkens
the screen (either h or v set to 0, not both)

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Expose some MPC functions for reuse

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix underscan not using proper scaling

fix underscan not being set correctly

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Pull transfer func defines into DC

Signed-off-by: SivapiriyanKumarasamy <sivapiriyan.kumarasamy@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: renaming filename for hubp

Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: dal 3.1.05

Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Fix up plane_states add/remove logic

Our plane_states array trimming logic was faulty, we should be starting
to shuffle from the plane that was just released, not from the very
beginning of the array.

Also get rid of a leftover line that was setting the plane state at the
stream index to null, leading to issues. Also move the
dc_plane_state_retain call to where we reference plane_state, in case we
do hit the error case where we can't get a free pipe.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add missing newlines in pstate wait debug messages

These were spamming the debugger logs.

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Add DPP capabilities

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: rename struct mem_input to hubp for dcn

Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: group DCN watermark registers

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: dal 3.1.04

Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Ignore wrong tautological warning

Some of our HW calcs functions compares a var against
itself to check for NaN. Gcc isn't fond of it and wrongfully
warns about a tautological comparison. Disable this check
for dcn_calcs_math.c.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: Handle case when stream not found in set_dpms

When validate with context fail to add stream to the context, we have
a case where set_dpms won't be able to find the stream that need to
be disabled.

Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/amd/display: add dpms state to DC follow up

Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>