linux/drivers/gpu/drm/drm_rect.c, branch v5.4

drm: drop use of drmP.h in drm/*

2019-05-27T16:07:03Z

The use of the drmP.h header file is deprecated. Remove use from all files in drm/* so people do not look there and follow a bad example. Build tested allyesconfig,allmodconfig on x86, arm etc. Including alpha that is as always more challenging than the rest. Signed-off-by: Sam Ravnborg Acked-by: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Sean Paul Cc: David Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20190526173535.32701-8-sam@ravnborg.org

drm: Nuke drm_calc_{h,v}scale_relaxed()

2019-02-07T11:14:06Z

The fuzzy drm_calc_{h,v}scale_relaxed() helpers are no longer used. Throw them in the bin. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20190206183204.21127-1-ville.syrjala@linux.intel.com Acked-by: Alex Deucher

drm/rect: Handle rounding errors in drm_rect_clip_scaled, v3.

2018-05-04T09:09:54Z

Instead of relying on a scale which may increase rounding errors, clip src by doing: src * (dst - clip) / dst and rounding the result away from 1, so the new coordinates get closer to 1. We won't need to fix up with a magic macro afterwards, because our scaling factor will never go to the other side of 1. Changes since v1: - Adjust dst immediately, else drm_rect_width/height on dst gives bogus results. Change since v2: - Get rid of macros and use 64-bits math. Signed-off-by: Maarten Lankhorst [mlankhorst: Add Villes comment, and rename newsrc to tmp. (Ville)] Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180503112217.37292-3-maarten.lankhorst@linux.intel.com

drm/rect: Round above 1 << 16 upwards to correct scale calculation functions.

2018-05-04T08:57:52Z

When calculating limits we want to be as pessimistic as possible, so we have to explicitly say whether we want to round up or down to accurately calculate whether we are below min_scale or above max_scale. Signed-off-by: Maarten Lankhorst [mlankhorst: Fix wording in documentation. (Ville)] Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180503112217.37292-2-maarten.lankhorst@linux.intel.com

drm/rect: Fix drm_rect_rotation_inv() docs

2018-05-02T20:02:22Z

An overeager sed has corrupted the drm_rect_rotation_inv() documentation. Fix it up. Looks like it wasn't entirely correct before the sed fail either. We were missing _rect_ from the function names, which also explains why the sed hit these by accident. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180426141631.15798-1-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter

drm: Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ to UAPI

2017-05-22T07:49:48Z

Add DRM_MODE_ROTATE_ and DRM_MODE_REFLECT_ defines to the UAPI as a convenience. Ideally the DRM_ROTATE_ and DRM_REFLECT_ property ids are looked up through the atomic API, but realizing that userspace is likely to take shortcuts and assume that the enum values are what is sent over the wire. As a result these defines are provided purely as a convenience to userspace applications. Changes since v3: - Switched away from past tense in comments - Add define name change to previously mis-spelled DRM_REFLECT_X comment - Improved the comment for the DRM_MODE_REFLECT_ comment Changes since v2: - Changed define prefix from DRM_MODE_PROP_ to DRM_MODE_ - Fix compilation errors - Changed comment formatting - Deduplicated comment lines - Clarified DRM_MODE_PROP_REFLECT_ comment Changes since v1: - Moved defines from drm.h to drm_mode.h - Changed define prefix from DRM_ to DRM_MODE_PROP_ - Updated uses of the defines to the new prefix - Removed include from drm_rect.c - Stopped using the BIT() macro Signed-off-by: Robert Foss Reviewed-by: Emil Velikov Reviewed-by: Sinclair Yeh Acked-by: Liviu Dudau Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170519205017.23307-2-robert.foss@collabora.com

drm/rect: Fix formatting of example code

2016-12-30T12:35:54Z

Drive-by polish. Cc: Ville Syrjälä Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1483044517-5770-9-git-send-email-daniel.vetter@ffwll.ch

drm: helper macros to print composite types

2016-11-08T21:38:03Z

I'll want to print things in a similar way in a later patch. This will make it easier. Signed-off-by: Rob Clark Reviewed-by: Sean Paul Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1478358492-30738-2-git-send-email-robdclark@gmail.com

drm: Warn about negative sizes when calculating scale factor

2016-08-08T18:17:56Z

Passing negative width/hight to scale factor calculations is not legal. Let's WARN if that happens. Signed-off-by: Ville Syrjälä Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1469549224-1860-2-git-send-email-ville.syrjala@linux.intel.com

drm: BIT(DRM_ROTATE_?) -> DRM_ROTATE_?

2016-08-08T18:17:56Z

Only property creation uses the rotation as an index, so convert the to figure the index when needed. v2: Use the new defines to build the _MASK defines (Sean) Cc: intel-gfx@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: malidp@foss.arm.com Cc: David Airlie Cc: Daniel Vetter Cc: Ville Syrjälä Cc: Liviu Dudau Cc: Sean Paul Acked-by: Liviu Dudau Reviewed-by: Ville Syrjälä (v1) Signed-off-by: Joonas Lahtinen Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1469771405-17653-1-git-send-email-joonas.lahtinen@linux.intel.com