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path: root/drivers/gpu/drm/drm_framebuffer.c
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2017-07-13drm/atomic: Use the correct iterator macro in atomic_remove_fbMaarten Lankhorst1-1/+1
for_each_obj_in_state will be removed, so use the new state here. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Link: http://patchwork.freedesktop.org/patch/msgid/20170712081344.25495-3-maarten.lankhorst@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-04-06drm: extract legacy framebuffer removeDaniel Vetter1-22/+115
I got confused every time I audited what that lock_all is doing in there until realizing it's for legacy kms only. Make that a notch more obvious by having 2 entirely different paths. While at it also move the atomic version of this into drm_framebuffer.c, there's no reason it needs to be in drm_atomic.c. That way it becomes a simple static function. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170403083304.9083-15-daniel.vetter@ffwll.ch
2017-03-22drm: Add mode_config .get_format_info() hookVille Syrjälä1-2/+7
Allow drivers to return a custom drm_format_info structure for special fb layouts. We'll use this for the compression control surface in i915. v2: Fix drm_get_format_info() kernel doc (Laurent) Don't pass 'dev' to the new hook (Laurent) v3: s/compresssion/compression/ (Ben) Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170321181218.10042-4-ville.syrjala@linux.intel.com
2017-03-22drm: Remove fb hsub/vsub alignment requirementVille Syrjälä1-4/+4
Allow framebuffers dimesions to be misaligned w.r.t. the subsampling factors. No real reason the core should have to enforce this, and it definitely starts to cause us issues with the i915 CCS support. So let's just lift the restriction. Let's start to round up when computing the color plane dimesions so that we'll not end up with too low an estimate for the memory requirements and whatnot. Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170321181218.10042-3-ville.syrjala@linux.intel.com Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
2017-03-22drm: Share the code to compute color plane dimesionsVille Syrjälä1-10/+22
framebuffer_check() has some hand rolled code to compute the color plane dimensions based on the subsampled information. Let's share the code between framebuffer_check() and drm_framebuffer_plane_{width,height}(). Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170321181218.10042-2-ville.syrjala@linux.intel.com Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
2017-02-28drm: Introduce drm_framebuffer_{get,put}()Thierry Reding1-17/+17
For consistency with other reference counting APIs in the kernel, add drm_framebuffer_get() and drm_framebuffer_put() to reference count DRM framebuffers. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for the DRM subsystem-wide conversion is extended to account for these new helpers. Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-5-thierry.reding@gmail.com
2017-02-28drm: Rename drm_mode_object_get()Thierry Reding1-2/+2
Subsequent patches will introduce reference counting APIs that are more consistent with similar APIs throughout the Linux kernel. These APIs use the _get() and _put() suffixes and will collide with this existing function. Rename the function to drm_mode_object_add() which is a slightly more accurate description of what it does. Also the kerneldoc for this function gives an indication that it's badly named because it doesn't actually acquire a reference to anything. Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-2-thierry.reding@gmail.com
2017-02-28drm: Convert drm_framebuffer_remove to atomic, v4.Maarten Lankhorst1-0/+7
Instead of trying to do everything in 1 go, just do a basic safe conversion first. We've been bitten by too many regressions in the past. This patch only converts drm_framebuffer_remove to atomic. The regression sensitive part is split out to a separate patch. v2: - Remove plane->fb assignment, done by drm_atomic_clean_old_fb. - Add WARN_ON when atomic_remove_fb fails. - Always call drm_atomic_state_put. v3: - Use drm_drv_uses_atomic_modeset - Handle the case where the first plane-disable-only commit fails with -EINVAL. Some drivers do not support this, fall back to disabling all crtc's in this case. v4: - Solve vmwgfx compatibility issue in their driver, was fixed in this patch by v3. - Move only disabling primary to a separate patch. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1487685102-31991-3-git-send-email-maarten.lankhorst@linux.intel.com
2017-01-25drm/kms-core: Use recommened kerneldoc for struct member refsDaniel Vetter1-6/+6
I just learned that &struct_name.member_name works and looks pretty even. It doesn't (yet) link to the member directly though, which would be really good for big structures or vfunc tables (where the per-member kerneldoc tends to be long). Also some minor drive-by polish where it makes sense, I read a lot of docs ... v2: Review from Eric. Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170125062657.19270-4-daniel.vetter@ffwll.ch
2016-12-30drm/doc: use preferred struct reference in kernel-docDaniel Vetter1-3/+3
sed -e 's/\( \* .*\)struct &\([_a-z]*\)/\1\&struct \2/' -i Originally I wasnt a friend of this style because I thought a line-break between the "&struct" and "foo" part would break it. But a quick test shows that " * &struct \n * foo\n" works pefectly well with current kernel-doc. So time to mass-apply these changes! Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1483044517-5770-6-git-send-email-daniel.vetter@ffwll.ch
2016-12-15drm: Nuke fb->bits_per_pixelVille Syrjälä1-1/+1
Replace uses of fb->bits_per_pixel with fb->format->cpp[0]*8. Less duplicated information is a good thing. Note that I didn't put parens around the cpp*8 in the below cocci script, on account of not wanting spurious parens all over the place. Instead I did the unsafe way, and tried to look over the entire diff to spot if any dangerous expressions were produced. I didn't see any. There are some cases where previously the code did X*bpp/8, so the division happened after the multiplication. Those are now just X*cpp so the division effectively happens before the multiplication, but that is perfectly fine since bpp is always a multiple of 8. @@ struct drm_framebuffer *FB; expression E; @@ drm_helper_mode_fill_fb_struct(...) { ... - FB->bits_per_pixel = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ i9xx_get_initial_plane_config(...) { ... - FB->bits_per_pixel = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ ironlake_get_initial_plane_config(...) { ... - FB->bits_per_pixel = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ skylake_get_initial_plane_config(...) { ... - FB->bits_per_pixel = E; ... } @@ struct drm_framebuffer FB; expression E; @@ ( - E * FB.bits_per_pixel / 8 + E * FB.format->cpp[0] | - FB.bits_per_pixel / 8 + FB.format->cpp[0] | - E * FB.bits_per_pixel >> 3 + E * FB.format->cpp[0] | - FB.bits_per_pixel >> 3 + FB.format->cpp[0] | - (FB.bits_per_pixel + 7) / 8 + FB.format->cpp[0] | - FB.bits_per_pixel + FB.format->cpp[0] * 8 | - FB.format->cpp[0] * 8 != 8 + FB.format->cpp[0] != 1 ) @@ struct drm_framebuffer *FB; expression E; @@ ( - E * FB->bits_per_pixel / 8 + E * FB->format->cpp[0] | - FB->bits_per_pixel / 8 + FB->format->cpp[0] | - E * FB->bits_per_pixel >> 3 + E * FB->format->cpp[0] | - FB->bits_per_pixel >> 3 + FB->format->cpp[0] | - (FB->bits_per_pixel + 7) / 8 + FB->format->cpp[0] | - FB->bits_per_pixel + FB->format->cpp[0] * 8 | - FB->format->cpp[0] * 8 != 8 + FB->format->cpp[0] != 1 ) @@ struct drm_plane_state *state; expression E; @@ ( - E * state->fb->bits_per_pixel / 8 + E * state->fb->format->cpp[0] | - state->fb->bits_per_pixel / 8 + state->fb->format->cpp[0] | - E * state->fb->bits_per_pixel >> 3 + E * state->fb->format->cpp[0] | - state->fb->bits_per_pixel >> 3 + state->fb->format->cpp[0] | - (state->fb->bits_per_pixel + 7) / 8 + state->fb->format->cpp[0] | - state->fb->bits_per_pixel + state->fb->format->cpp[0] * 8 | - state->fb->format->cpp[0] * 8 != 8 + state->fb->format->cpp[0] != 1 ) @@ @@ - (8 * 8) + 8 * 8 @@ struct drm_framebuffer FB; @@ - (FB.format->cpp[0]) + FB.format->cpp[0] @@ struct drm_framebuffer *FB; @@ - (FB->format->cpp[0]) + FB->format->cpp[0] @@ @@ struct drm_framebuffer { ... - int bits_per_pixel; ... }; v2: Clean up the 'cpp*8 != 8' and '(8 * 8)' cases (Laurent) v3: Adjusted the semantic patch a bit and regenerated due to code changes Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1) Link: http://patchwork.freedesktop.org/patch/msgid/1481751140-18352-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15drm: Nuke fb->depthVille Syrjälä1-1/+1
Replace uses of fb->depth with fb->format->depth. Less duplicate information is a good thing. @@ struct drm_framebuffer *fb; expression E; @@ drm_helper_mode_fill_fb_struct(...) { ... - fb->depth = E; ... } @@ struct nouveau_framebuffer *fb; @@ - fb->base.depth + fb->base.format->depth @@ struct drm_framebuffer fb; @@ - fb.depth + fb.format->depth @@ struct drm_framebuffer *fb; @@ - fb->depth + fb->format->depth @@ struct drm_framebuffer fb; @@ - (fb.format->depth) + fb.format->depth @@ struct drm_framebuffer *fb; @@ - (fb->format->depth) + fb->format->depth @@ @@ struct drm_framebuffer { ... - unsigned int depth; ... }; v2: Drop the vmw stuff (Daniel) Rerun spatch due to code changes Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1481751095-18249-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15drm: Add drm_framebuffer_plane_{width,height}()Ville Syrjälä1-0/+44
Add variants of drm_format_plane_{width,height}() that take an entire fb object instead of just the format. These should be more efficent as they can just look up the format info from the fb->format pointer rather than having to look it up (using a linear search based on the format). Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-30-git-send-email-ville.syrjala@linux.intel.com
2016-12-15drm: Reject fbs w/o format info in drm_framebuffer_init()Ville Syrjälä1-1/+1
Any framebuffer that doesn't have proper format information when drm_framebuffer_init() is called is a bug. Let's warn and return an error to avoid oopsing the kernel later due to dereferencing the NULL fb->format pointer. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-23-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2016-12-15drm: Populate fb->dev from drm_helper_mode_fill_fb_struct()Ville Syrjälä1-1/+4
Populating fb->dev before drm_framebuffer_init() allows us to use fb->dev already while validating the framebuffer. Let's have drm_helper_mode_fill_fb_struct() do that for us. Also make drm_framebuffer_init() warn us if a different device pointer is passed to it than was passed to drm_helper_mode_fill_fb_struct(). v2: Reject fbs with invalid fb->dev (Laurent) Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1) Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-19-git-send-email-ville.syrjala@linux.intel.com
2016-11-17drm: Nuke modifier[1-3]Ville Syrjälä1-0/+7
It has been suggested that having per-plane modifiers is making life more difficult for userspace, so let's just retire modifier[1-3] and use modifier[0] to apply to the entire framebuffer. Obviosuly this means that if individual planes need different tiling layouts and whatnot we will need a new modifier for each combination of planes with different tiling layouts. For a bit of extra backwards compatilbilty the kernel will allow non-zero modifier[1+] but it require that they will match modifier[0]. This in case there's existing userspace out there that sets modifier[1+] to something non-zero with planar formats. Mostly a cocci job, with a bit of manual stuff mixed in. @@ struct drm_framebuffer *fb; expression E; @@ - fb->modifier[E] + fb->modifier @@ struct drm_framebuffer fb; expression E; @@ - fb.modifier[E] + fb.modifier Cc: Kristian Høgsberg <hoegsberg@gmail.com> Cc: Ben Widawsky <benjamin.widawsky@intel.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Tomeu Vizoso <tomeu@tomeuvizoso.net> Cc: dczaplejewicz@collabora.co.uk Suggested-by: Kristian Høgsberg <hoegsberg@gmail.com> Acked-by: Ben Widawsky <ben@bwidawsk.net> Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479295996-26246-1-git-send-email-ville.syrjala@linux.intel.com
2016-11-12drm: move allocation out of drm_get_format_name()Eric Engestrom1-3/+4
The function's behaviour was changed in 90844f00049e, without changing its signature, causing people to keep using it the old way without realising they were now leaking memory. Rob Clark also noticed it was also allocating GFP_KERNEL memory in atomic contexts, breaking them. Instead of having to allocate GFP_ATOMIC memory and fixing the callers to make them cleanup the memory afterwards, let's change the function's signature by having the caller take care of the memory and passing it to the function. The new parameter is a single-field struct in order to enforce the size of its buffer and help callers to correctly manage their memory. Fixes: 90844f00049e ("drm: make drm_get_format_name thread-safe") Cc: Rob Clark <robdclark@gmail.com> Cc: Christian König <christian.koenig@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Sinclair Yeh <syeh@vmware.com> (vmwgfx) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Eric Engestrom <eric@engestrom.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161112011309.9799-1-eric@engestrom.ch
2016-11-08drm: update the documentation of drm_framebuffer_unregister_privateRongrong Zou1-0/+5
Add obvious description to drm_framebuffer_unregister_private() to explain it is deprecated. Signed-off-by: Rongrong Zou <zourongrong@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1477915196-100299-1-git-send-email-zourongrong@gmail.com
2016-10-18drm: WARN when calling drm_format_info() for an unsupported formatLaurent Pinchart1-1/+1
The format helpers have historically treated unsupported formats as part of the default case, returning values that are likely wrong. We can't change this behaviour now without risking breaking drivers in difficult to detect ways, but we can WARN on unsupported formats to catch faulty callers. The only exception is the framebuffer_check() function that calls drm_format_info() to validate the format passed from userspace. This is a valid use case that shouldn't generate a warning. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/1476744081-24485-5-git-send-email-laurent.pinchart@ideasonboard.com
2016-10-18drm: Use drm_format_info() in DRM core codeLaurent Pinchart1-90/+12
Replace calls to the drm_format_*() helper functions with direct use of the drm_format_info structure. This improves efficiency by removing duplicate lookups. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/1476744081-24485-4-git-send-email-laurent.pinchart@ideasonboard.com
2016-09-22drm: Extract drm_plane.[hc]Daniel Vetter1-0/+26
Just pure code movement, cleanup and polish will happen in later patches. v2: Don't forget all the ioctl! To extract those cleanly I decided to put check_src_coords into drm_framebuffer.c (and give it a drm_framebuffer_ prefix), since that just checks framebuffer constraints. v3: rebase over PAGE_FLIP_TARGET. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> [seanpaul] This patch as posted on the list was rebased on: commit 6f00975c619064a18c23fd3aced325ae165a73b9 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Sat Aug 20 12:22:11 2016 +0200 drm: Reject page_flip for !DRIVER_MODESET so as a result of moving the page_flip ioctl, this fix has been rolled into this patch. Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-08-16drm/doc: Update drm_framebuffer docsDaniel Vetter1-0/+35
- Move the intro section into a DOC comment, and update it slightly. - kernel-doc for struct drm_framebuffer! v2: - Copypaste fail (Sean). - Explain the linear @offsets clearer (Ville). Cc: Sean Paul <seanpaul@chromium.org> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-12-git-send-email-daniel.vetter@ffwll.ch
2016-08-16drm: Extract drm_framebuffer.[hc]Daniel Vetter1-0/+796
Also start with drm_modeset.h with the core bits, since we need to untangle this mess somehow. That allows us to move the drm_modes.h include to the right spot, except for the temporary connector status enum. That will get fixed as soon as drm_connector.h exists. v2: Rebase. v3: Move drm_crtc_force_disable_all back again, that wasn't meant to be moved (Sean). v4: Rebase. Cc: Sean Paul <seanpaul@chromium.org> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>