- 16 Dec, 2016 1 commit
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Jason A. Donenfeld authored
On most platforms, there exists this ifdef: #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) This makes this patch functionally useless. However, on PPC, there is actually an explicit definition of atomic_inc_not_zero with its own assembly that is slightly more optimized than atomic_add_unless. So, this patch changes kref to use atomic_inc_not_zero instead, for PPC and any future platforms that might provide an explicit implementation. This also puts this usage of kref more in line with a verbatim reading of the examples in Paul McKenney's paper [1] in the section titled "2.4 Atomic Counting With Check and Release Memory Barrier", which uses atomic_inc_not_zero. [1] http://open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2167.pdfSigned-off-by:
Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by:
Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161215050110.3241-1-Jason@zx2c4.com
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- 15 Dec, 2016 26 commits
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Ville Syrjälä authored
drm_modeset_helper.c:74: warning: No description found for parameter 'dev' Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Alex Deucher <alexander.deucher@amd.com> Fixes: a3f913ca ("drm: Pass 'dev' to drm_helper_mode_fill_fb_struct()") Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161215170128.23972-1-ville.syrjala@linux.intel.comReviewed-by:
Alex Deucher <alexander.deucher@amd.com> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Maarten Lankhorst authored
drm_atomic_state_put is called unconditionally, so TEST_ONLY is no different from commit. Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
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Thierry Reding authored
drm_event_reserve_init_locked() is the correct function to call when already holding the dev->event_lock lock. Signed-off-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
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Ville Syrjälä authored
Apparently my arm .config had reverted to CMA=n at some point, so I failed to notice that I typoed the code. Fix it up so that the cma helper will compile again. Reported-by:
kbuild test robot <fengguang.wu@intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Fixes: ca984a99 ("drm/fb_cma_helper: Replace drm_format_info() with fb->format") Signed-off-by:
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Ville Syrjälä authored
No point in spamming the log whenever a non-RGB fb is being constructed. And since there's nothing to do anymore that fb->bits_per_pixel and fb->depth are gone, we can just kill off this entire piece of code. Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by:
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Ville Syrjälä authored
Rather than compare the format u32s of two format infos, we can direclty compare the format info pointers themselves. Noramlly all the ->format pointers all point to somwehere in the big array, so this is a valid way to test for equality. Also drivers may want to point ->format at a private format info struct instead (eg. for special compressed formats with extra planes), so just comparing the pixel format values wouldn't necessaritly even work. But comparing the pointers will also take care of that case. @@ struct drm_framebuffer *a; struct drm_framebuffer *b; @@ ( - a->format->format != b->format->format + a->format != b->format | - a->format->format == b->format->format + a->format == b->format ) @@ struct drm_plane_state *a; struct drm_plane_state *b; @@ ( - a->fb->format->format != b->fb->format->format + a->fb->format != b->fb->format | - a->fb->format->format == b->fb->format->format + a->fb->format == b->fb->format ) @@ struct drm_crtc *crtc; struct drm_framebuffer *x; @@ ( - crtc->primary->fb->format->format != x->format->format + crtc->primary->fb->format != x->format | - x->format->format != crtc->primary->fb->format->format + x->format != crtc->primary->fb->format ) @@ struct drm_mode_set *set; @@ - set->fb->format->format != set->crtc->primary->fb->format->format + set->fb->format != set->crtc->primary->fb->format Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by:
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Ville Syrjälä authored
Replace uses of fb->pixel_format with fb->format->format. Less duplicated information is a good thing. Note that coccinelle failed to eliminate the "/* fourcc format */" comment from drm_framebuffer.h, so I had to do that part manually. @@ struct drm_framebuffer *FB; expression E; @@ drm_helper_mode_fill_fb_struct(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ i9xx_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ ironlake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *FB; expression E; @@ skylake_get_initial_plane_config(...) { ... - FB->pixel_format = E; ... } @@ struct drm_framebuffer *a; struct drm_framebuffer b; @@ ( - a->pixel_format + a->format->format | - b.pixel_format + b.format->format ) @@ struct drm_plane_state *a; struct drm_plane_state b; @@ ( - a->fb->pixel_format + a->fb->format->format | - b.fb->pixel_format + b.fb->format->format ) @@ struct drm_crtc *CRTC; @@ ( - CRTC->primary->fb->pixel_format + CRTC->primary->fb->format->format | - CRTC->primary->state->fb->pixel_format + CRTC->primary->state->fb->format->format ) @@ struct drm_mode_set *set; @@ ( - set->fb->pixel_format + set->fb->format->format | - set->crtc->primary->fb->pixel_format + set->crtc->primary->fb->format->format ) @@ @@ struct drm_framebuffer { ... - uint32_t pixel_format; ... }; v2: Fix commit message (Laurent) Rebase due to earlier removal of many fb->pixel_format uses, including the 'fb->format = drm_format_info(fb->format->format);' snafu v3: Adjusted the semantic patch a bit and regenerated due to code changes Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: -
Ville Syrjälä authored
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 authored
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 authored
Replace drm_format_plane_{width,height}() usage with drm_framebuffer_plane_{width,height}() to avoid the lookup of the format info. Cc: intel-gfx@lists.freedesktop.org Signed-off-by: -
Ville Syrjälä authored
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 authored
Rather than store the pixel format and look up the format info as needed, let's just store a pointer to the format info directly and speed up our lookups. Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: intel-gfx@lists.freedesktop.org Signed-off-by:
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Ville Syrjälä authored
Let's use the pointer to the format information cached under drm_framebuffer rather than look it up manually. Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
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Ville Syrjälä authored
Get the format information via the neat fb->format pointer rather than doing a linear search over all the format info structures. Signed-off-by:
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Ville Syrjälä authored
Replace drm_format_plane_cpp(fb->pixel_format) with just fb->format->cpp[]. Avoids the expensive format info lookup. @@ struct drm_framebuffer *a; struct drm_framebuffer b; expression E; @@ ( - drm_format_plane_cpp(a->pixel_format, E) + a->format->cpp[E] | - drm_format_plane_cpp(b.pixel_format, E) + b.format->cpp[E] ) @@ struct drm_plane_state *a; struct drm_plane_state b; expression E; @@ ( - drm_format_plane_cpp(a->fb->pixel_format, E) + a->fb->format->cpp[E] | - drm_format_plane_cpp(b.fb->pixel_format, E) + b.fb->format->cpp[E] ) @@ struct drm_framebuffer *a; identifier T; expression E; @@ T = a->pixel_format <+... - drm_format_plane_cpp(T, E) + a->format->cpp[E] ...+> @@ struct drm_framebuffer b; identifier T; expression E; @@ T = b.pixel_format <+... - drm_format_plane_cpp(T, E) + b.format->cpp[E] ...+> v2: Rerun spatch due to code changes Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by:
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Ville Syrjälä authored
Don't access plane_state->fb until we know the plane to be visible. It it's visible, it will have an fb, and thus we don't have to consider the NULL fb case. Makes the code look nicer. Cc: intel-gfx@lists.freedesktop.org Signed-off-by:
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Ville Syrjälä authored
Replace drm_format_num_planes(fb->pixel_format) with just fb->format->num_planes. Avoids the expensive format info lookup. @@ struct drm_framebuffer *a; struct drm_framebuffer b; @@ ( - drm_format_num_planes(a->pixel_format) + a->format->num_planes | - drm_format_num_planes(b.pixel_format) + b.format->num_planes ) @@ struct drm_plane_state *a; struct drm_plane_state b; @@ ( - drm_format_num_planes(a->fb->pixel_format) + a->fb->format->num_planes | - drm_format_num_planes(b.fb->pixel_format) + b.fb->format->num_planes ) @@ struct drm_framebuffer *a; identifier T; @@ T = a->pixel_format <+... - drm_format_num_planes(T) + a->format->num_planes ...+> @@ struct drm_framebuffer b; identifier T; @@ T = b.pixel_format <+... - drm_format_num_planes(T) + b.format->num_planes ...+> v2: Rerun spatch due to code changes Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Suggested-by:
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Ville Syrjälä authored
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:
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Ville Syrjälä authored
Make sure the framebuffer format info is available as early as possible for fbs we inherit from the BIOS. This will allow us to use the fb as if it was fully formed before we register it. Cc: intel-gfx@lists.freedesktop.org Signed-off-by:
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Ville Syrjälä authored
To avoid having to look up the format information struct every time, let's just store a pointer to it under drm_framebuffer. v2: Don't populate the fb->format pointer in drm_framebuffer_init(). instead we'll treat a NULL format as an error later Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: -
Ville Syrjälä authored
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:
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Ville Syrjälä authored
We want the fbs inherited from the BIOS to be more or less fully working prior to actually registering them. This will allow us to just pass the fb to various helper function instead of having to pass all the different parameters separately. Cc: intel-gfx@lists.freedesktop.org Signed-off-by:
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Ville Syrjälä authored
We want framebuffers to be mostly useable already before drm_framebuffer_init() get called, and so we will start demanding that all the interesting format/size/etc. information be filled in before drm_framebuffer_init(). drm_helper_mode_fill_fb_struct() will do that for us, so let's make sure it gets called before drm_framebuffer_init(). Cc: Dave Airlie <airlied@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by:
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Ville Syrjälä authored
We want framebuffers to be mostly useable already before drm_framebuffer_init() is called, and so we will start demanding that all the interesting format/size/etc. information be filled in before drm_framebuffer_init(). drm_helper_mode_fill_fb_struct() will do that for us, so let's make sure it gets called before drm_framebuffer_init(). Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
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Ville Syrjälä authored
Pass the drm_device to drm_helper_mode_fill_fb_struct() so that we can populate fb->dev early. Will make it easier to use the fb before we register it. @@ identifier fb, mode_cmd; @@ void drm_helper_mode_fill_fb_struct( + struct drm_device *dev, struct drm_framebuffer *fb, const struct drm_mode_fb_cmd2 *mode_cmd ); @@ identifier fb, mode_cmd; @@ void drm_helper_mode_fill_fb_struct( + struct drm_device *dev, struct drm_framebuffer *fb, const struct drm_mode_fb_cmd2 *mode_cmd ) { ... } @@ function func; identifier dev; expression E1, E2; @@ func(struct drm_device *dev, ...) { ... drm_helper_mode_fill_fb_struct( + dev, E1, E2); ... } @@ expression E1, E2; @@ drm_helper_mode_fill_fb_struct( + dev, E1, E2); v2: Rerun spatch due to code changes Signed-off-by: -
Caesar Wang authored
It looks like the BOE panel FW didn't ack the DPCD600 signal from the host device, this will cause the panel to hang on the startup display. The root cause is that we use the fast link mode when we enter and exit PSR, the issue is gone if we switch from the fast link to main link mode. Signed-off-by:
Caesar Wang <wxt@rock-chips.com> Signed-off-by:
Archit Taneja <architt@codeaurora.org> Link: http://patchwork.freedesktop.org/patch/msgid/1481338159-7189-1-git-send-email-wxt@rock-chips.com
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- 14 Dec, 2016 13 commits
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my poor coccinelle skills later. Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
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Ville Syrjälä authored
So it looks like the code is trying to pick between the passed in fb and crtc->primary->fb based on that funky 'bool atomic'. But later it will mix uses of both drm_fb (which was picked by the aforementioned logic) and crtc->primary->fb. So looks like a bug to me. Let's make it use drm_fb only. Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my ppor coccinelle skills later. In some places the local variable was already there, just not used consistently. Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Brian Starkey <brian.starkey@arm.com> Cc: Mali DP Maintainers <malidp@foss.arm.com> Signed-off-by:
Brian Starkey <brian.starkey@arm.com> Acked-by:
Liviu Dudau <liviu.dudau@arm.com>
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my ppor coccinelle skills later. Cc: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by:
Alexey Brodkin <abrodkin@synopsys.com>
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my poor coccinelle skills later. Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my poor coccinelle skills later. Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by:
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my poor coccinelle skills later. Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my poor coccinelle skills later. Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
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Ville Syrjälä authored
Use DIV_ROUND_UP() instead of hand rolling it. Just a drive-by change. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by:
Christian König <christian.koenig@amd.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-4-git-send-email-ville.syrjala@linux.intel.com
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my poor coccinelle skills later. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Signed-off-by:
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Ville Syrjälä authored
Add a local 'fb' variable to a few places to get rid of the 'crtc->primary->fb' stuff. Looks neater and helps me with my poor coccinelle skills later. While at it switch over to using the pixel format rather than depth+bpp. Cc: intel-gfx@lists.freedesktop.org Signed-off-by:
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Bartosz Golaszewski authored
THS8135 is a configurable video DAC, but no configuration is actually necessary to make it work. For now use the dumb-vga-dac driver to support it. Signed-off-by:
Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by:
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Bartosz Golaszewski authored
THS8135 is a configurable video DAC. Add DT bindings for this chip. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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