linux-stable.git/drivers/gpu/drm/selftests, branch linux-5.10.y

drm/mst: Add support for QUERY_STREAM_ENCRYPTION_STATUS MST sideband message

2020-09-01T07:32:33+00:00

Used to query whether an MST stream is encrypted or not.

Cc: Lyude Paul 
Reviewed-by: Anshuman Gupta 
Reviewed-by: Lyude Paul 
Signed-off-by: Sean Paul 

Link: https://patchwork.freedesktop.org/patch/msgid/20200218220242.107265-14-sean@poorly.run #v4
Link: https://patchwork.freedesktop.org/patch/msgid/20200305201236.152307-15-sean@poorly.run #v5
Link: https://patchwork.freedesktop.org/patch/msgid/20200429195502.39919-15-sean@poorly.run #v6
Link: https://patchwork.freedesktop.org/patch/msgid/20200623155907.22961-16-sean@poorly.run #v7
Link: https://patchwork.freedesktop.org/patch/msgid/20200818153910.27894-16-sean@poorly.run #v8

Changes in v4:
-Added to the set
Changes in v5:
-None
Changes in v6:
-Use FIELD_PREP to generate request buffer bitfields (Lyude)
-Add mst selftest and dump/decode_sideband_req for QSES (Lyude)
Changes in v7:
-None
Changes in v8:
-Reverse the parsing on the hdcp_*x_device_present bits and leave
 breadcrumb in case this is incorrect (Anshuman)
Changes in v8.5:
-s/DRM_DEBUG_KMS/drm_dbg_kms/ (Lyude)

Signed-off-by: Ramalingam C 
Acked-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20200819143133.46232-1-sean@poorly.run

drm/mm/selftests: fix wrong return type casting

2020-06-23T13:57:30+00:00

Function prepare_igt_frag() and get_insert_time() were casting
signed value to unsigned value before returning error.
So error check in igt_frag() would not work with unsigned
return value from get_insert_time() compared against negative
value.

Addresses-Coverity: ("Unsigned compared against 0, no effect")
Signed-off-by: Nirmoy Das 
Reported-by: Colin Ian King 
Reviewed-by: Christian König 
Signed-off-by: Christian König 
Link: https://patchwork.freedesktop.org/patch/370636/

drm/mm: optimize find_hole() as well

2020-06-23T13:46:06+00:00

Abort early if there isn't enough space to allocate from a subtree.

Signed-off-by: Christian König 
Acked-by: Nirmoy Das 
Link: https://patchwork.freedesktop.org/patch/370297/

drm/kselftest: fix spellint typo in test-drm_mm.c

2020-06-16T12:13:04+00:00

This patch fix a spelling typo in test-drm_mm.c

Signed-off-by: Masanari Iida 
Signed-off-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20200615121151.1557985-1-standby24x7@gmail.com

drm/mm: add ig_frag selftest

2020-06-08T13:14:16+00:00

This patch introduces fragmentation in the address range
and measures time taken by 10k and 20k insertions. ig_frag()
will fail if the time taken by 20k insertions takes more than
4 times of 10k insertions as we know that insertions should at
most scale quadratically.

v2:
introduce fragmentation by freeing every other node.
only test bottom-up and top-down for now.

v3:
fix incorrect mode check

Signed-off-by: Nirmoy Das 
Reviewed-by: Christian König 
Signed-off-by: Christian König 
Link: https://patchwork.freedesktop.org/patch/369076/

drm/modes: Make sure to parse valid rotation value from cmdline

2020-02-12T17:32:54+00:00

A rotation value should have exactly one rotation angle.
At the moment there is no validation for this when parsing video=
parameters from the command line. This causes problems later on
when we try to combine the command line rotation with the panel
orientation.

To make sure that we generate a valid rotation value:
  - Set DRM_MODE_ROTATE_0 by default (if no rotate= option is set)
  - Validate that there is exactly one rotation angle set
    (i.e. specifying the rotate= option multiple times is invalid)

Signed-off-by: Stephan Gerhold 
Signed-off-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20200117153429.54700-2-stephan@gerhold.net

Merge tag 'amd-drm-next-5.6-2020-01-10-dp-mst-dsc' of git://people.freedesktop.org/~agd5f/linux into drm-next

2020-01-13T07:14:34+00:00

amd-drm-next-5.6-2020-01-10-dp-mst-dsc:

drm:
- Add MST helper for PBN calculation of DSC modes
- Parse FEC caps on MST ports
- Add MST DPCD R/W functions
- Add MST helpers for virtual DPCD aux
- Add MST HUB quirk
- Add MST DSC enablement helpers

amdgpu:
- Enable MST DSC
- Add fair share algo for DSC bandwidth calcs
- Fix for 32 bit builds

Signed-off-by: Dave Airlie 
From: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20200110214328.308549-1-alexander.deucher@amd.com

drm/dp_mst: Add PBN calculation for DSC modes

2020-01-09T23:07:46+00:00

With DSC, bpp can be fractional in multiples of 1/16.

Change drm_dp_calc_pbn_mode to reflect this, adding a new
parameter bool dsc. When this parameter is true, treat the
bpp parameter as having units not of bits per pixel, but
1/16 of a bit per pixel

v2: Don't add separate function for this
v3: In the equation divide bpp by 16 as it is expected
not to leave any remainder
v4: Added DSC test parameters for selftest

Reviewed-by: Manasi Navare 
Reviewed-by: Lyude Paul 
Reviewed-by: Harry Wentland 
Signed-off-by: David Francis 
Signed-off-by: Mikita Lipski 
Signed-off-by: Alex Deucher

drm/modes: parse_cmdline: Add support for specifying panel_orientation (v2)

2019-12-16T11:13:18+00:00

Sometimes we want to override a connector's panel_orientation from the
kernel commandline. Either for testing and for special cases, e.g. a kiosk
like setup which uses a TV mounted in portrait mode.

Users can already specify a "rotate" option through a video= kernel cmdline
option. But that only supports 0/180 degrees (see drm_client_modeset TODO)
and only works for in kernel modeset clients, not for userspace kms users.

The "panel-orientation" connector property OTOH does support 90/270 degrees
as it leaves dealing with the rotation up to userspace and this does work
for userspace kms clients (at least those which support this property).

Changes in v2:
-Add missing ':' after @panel_orientation (reported by kbuild test robot)

BugLink: https://gitlab.freedesktop.org/plymouth/plymouth/merge_requests/83
Acked-by: Maxime Ripard 
Signed-off-by: Hans de Goede 
Link: https://patchwork.freedesktop.org/patch/msgid/20191118155134.30468-9-hdegoede@redhat.com

drm/modes: parse_cmdline: Allow specifying stand-alone options

2019-12-16T11:13:18+00:00

Some options which can be specified on the commandline, such as
margin_right=..., margin_left=..., etc. are applied not only to the
specified mode, but to all modes. As such it would be nice if the user
can simply say e.g.
video=HDMI-1:margin_right=14,margin_left=24,margin_bottom=36,margin_top=42

This commit refactors drm_mode_parse_command_line_for_connector() to
add support for this, and as a nice side effect also cleans up the
function a bit.

Acked-by: Maxime Ripard 
Signed-off-by: Hans de Goede 
Link: https://patchwork.freedesktop.org/patch/msgid/20191118155134.30468-8-hdegoede@redhat.com