- 17 Nov, 2020 3 commits
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Daniel Vetter authored
Every since commit 6104c370 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Aug 1 17:32:07 2017 +0200 fbcon: Make fbcon a built-time depency for fbdev these are no longer distinct loadable modules, so exporting symbols is kinda pointless. Acked-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Helge Deller <deller@gmx.de> Cc: Peilin Ye <yepeilin.cs@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201029101428.4058311-2-daniel.vetter@ffwll.ch
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Daniel Vetter authored
So ever since syzbot discovered fbcon, we have solid proof that it's full of bugs. And often the solution is to just delete code and remove features, e.g. 50145474 ("fbcon: remove soft scrollback code"). Now the problem is that most modern-ish drivers really only treat fbcon as an dumb kernel console until userspace takes over, and Oops printer for some emergencies. Looking at drm drivers and the basic vesa/efi fbdev drivers shows that only 3 drivers support any kind of acceleration: - nouveau, seems to be enabled by default - omapdrm, when a DMM remapper exists using remapper rewriting for y/xpanning - gma500, but that is getting deleted now for the GTT remapper trick, and the accelerated copyarea never set the FBINFO_HWACCEL_COPYAREA flag, so unused (and could be deleted already I think). No other driver supportes accelerated fbcon. And fbcon is the only user of this accel code (it's not exposed as uapi through ioctls), which means we could garbage collect fairly enormous amounts of code if we kill this. Plus because syzbot only runs on virtual hardware, and none of the drivers for that have acceleration, we'd remove a huge gap in testing. And there's no other even remotely comprehensive testing aside from syzbot. This patch here just disables the acceleration code by always redrawing when scrolling. The plan is that once this has been merged for well over a year in released kernels, we can start to go around and delete a lot of code. v2: - Drop a few more unused local variables, somehow I missed the compiler warnings (Sam) - Fix typo in comment (Jiri) - add a todo entry for the cleanup (Thomas) v3: Remove more unused variables (0day) Reviewed-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by:
Sam Ravnborg <sam@ravnborg.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: nouveau@lists.freedesktop.org Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org> Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Peilin Ye <yepeilin.cs@gmail.com> Cc: George Kennedy <george.kennedy@oracle.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Peter Rosin <peda@axentia.se> Signed-off-by:
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Yang Yingliang authored
If devm_kzalloc() failed after the first time, atmel_lcdfb_of_init() can't return -ENOMEM, fix this by putting the error code in loop. Fixes: b985172b ("video: atmel_lcdfb: add device tree suport") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Signed-off-by:
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- 16 Nov, 2020 14 commits
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Mauro Carvalho Chehab authored
Some identifiers have different names between their prototypes and the kernel-doc markup. Others need to be fixed, as kernel-doc markups should use this format: identifier - description Signed-off-by:Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/12d4ca26f6843618200529ce5445063734d38c04.1605521731.git.mchehab+huawei@kernel.org
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Mauro Carvalho Chehab authored
Some identifiers have different names between their prototypes and the kernel-doc markup. Signed-off-by:
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Peilin Ye authored
For user-provided fonts, the framebuffer layer is using a magic negative-indexing macro, FNTCHARCNT(), to keep track of their number of characters: #define FNTCHARCNT(fd) (((int *)(fd))[-3]) For built-in fonts, it is using hard-coded values (256). This results in something like the following: map.length = (ops->p->userfont) ? FNTCHARCNT(ops->p->fontdata) : 256; This is unsatisfactory. In fact, there is already a `charcount` field in our virtual console descriptor (see `struct console_font` inside `struct vc_data`), let us use it: map.length = vc->vc_font.charcount; Recently we added a `charcount` field to `struct font_desc`. Use it to set `vc->vc_font.charcount` properly. The idea is: - We only use FNTCHARCNT() on `vc->vc_font.data` and `p->fontdata`. Assume FNTCHARCNT() is working as intended; - Whenever `vc->vc_font.data` is set, also set `vc->vc_font.charcount` properly; - We can now replace `FNTCHARCNT(vc->vc_font.data)` with `vc->vc_font.charcount`; - Since `p->fontdata` always point to the same font data buffer with `vc->vc_font.data`, we can also replace `FNTCHARCNT(p->fontdata)` with `vc->vc_font.charcount`. In conclusion, set `vc->vc_font.charcount` properly in fbcon_startup(), fbcon_init(), fbcon_set_disp() and fbcon_do_set_font(), then replace FNTCHARCNT() with `vc->vc_font.charcount`. No more if-else between negative-indexing macros and hard-coded values. Do not include <linux/font.h> in fbcon_rotate.c and tileblit.c, since they no longer need it. Depends on patch "Fonts: Add charcount field to font_desc". Suggested-by:Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
Peilin Ye <yepeilin.cs@gmail.com> Reviewed-by:
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Peilin Ye authored
sti_select_fbfont() and sti_cook_fonts() are hard-coding the number of characters of our built-in fonts as 256. Recently, we included that information in our kernel font descriptor `struct font_desc`, so use `fbfont->charcount` instead of hard-coded values. Depends on patch "Fonts: Add charcount field to font_desc". Signed-off-by:
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Peilin Ye authored
Subsystems are hard-coding the number of characters of our built-in fonts as 256. Include that information in our kernel font descriptor, `struct font_desc`. Signed-off-by:
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Peilin Ye authored
.con_font_set and .con_font_default callbacks should not pass `struct console_font *` as a parameter, since `struct console_font` is a UAPI structure. We are trying to let them use our new kernel font descriptor, `struct font_desc` instead. To make that work slightly easier, first delete all of their no-op implementations used by dummy consoles. This will make KD_FONT_OP_SET and KD_FONT_OP_SET_DEFAULT ioctl() requests on dummy consoles start to fail and return `-ENOSYS`, which is intended, since no user should ever expect such operations to succeed on dummy consoles. Suggested-by:
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Peilin Ye authored
Recently in commit 3c4e0dff ("vt: Disable KD_FONT_OP_COPY") we disabled the KD_FONT_OP_COPY ioctl() option. Delete all the con_font_copy() callbacks, since we no longer use them. Mark KD_FONT_OP_COPY as "obsolete" in include/uapi/linux/kd.h, just like what we have done for PPPIOCDETACH in commit af8d3c7c ("ppp: remove the PPPIOCDETACH ioctl"). Signed-off-by:
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Boris Brezillon authored
We've fixed many races in panfrost_job_timedout() but some remain. Instead of trying to fix it again, let's simplify the logic and move the reset bits to a separate work scheduled when one of the queue reports a timeout. v5: - Simplify panfrost_scheduler_stop() (Steven Price) - Always restart the queue in panfrost_scheduler_start() even if the status is corrupted (Steven Price) v4: - Rework the logic to prevent a race between drm_sched_start() (reset work) and drm_sched_job_timedout() (timeout work) - Drop Steven's R-b - Add dma_fence annotation to the panfrost_reset() function (Daniel Vetter) v3: - Replace the atomic_cmpxchg() by an atomic_xchg() (Robin Murphy) - Add Steven's R-b v2: - Use atomic_cmpxchg() to conditionally schedule the reset work (Steven Price) Fixes: 1a11a88c ("drm/panfrost: Fix job timeout handling") Cc: <stable@vger.kernel.org> Signed-off-by:
Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by:
Steven Price <steven.price@arm.com> Signed-off-by:
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Simon Ser authored
crtc can be NULL. connector, extracted from conn_state, can't. Fixes: e3aae683 ("drm: convert drm_atomic_uapi.c to new debug helpers") Signed-off-by:
Simon Ser <contact@emersion.fr> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by:
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Zou Wei authored
Fix the following sparse warning: ./virtgpu_prime.c:46:33: warning: symbol 'virtgpu_dmabuf_ops' was not declared. Should it be static? Signed-off-by:
Zou Wei <zou_wei@huawei.com> Link: http://patchwork.freedesktop.org/patch/msgid/1605338173-22100-1-git-send-email-zou_wei@huawei.comSigned-off-by:
Gerd Hoffmann <kraxel@redhat.com>
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Viresh Kumar authored
dev_pm_opp_of_remove_table() doesn't report any errors when it fails to find the OPP table with error -ENODEV (i.e. OPP table not present for the device). And we can call dev_pm_opp_of_remove_table() unconditionally here. Reviewed-by:
Qiang Yu <yuq825@gmail.com> Signed-off-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/lima/lima_sched.c: In function ‘lima_sched_run_job’: drivers/gpu/drm/lima/lima_sched.c:227:20: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] Cc: Qiang Yu <yuq825@gmail.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: dri-devel@lists.freedesktop.org Cc: lima@lists.freedesktop.org Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/lima/lima_drv.c:264: warning: cannot understand function prototype: 'const struct drm_driver lima_drm_driver = ' Cc: Qiang Yu <yuq825@gmail.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Cc: lima@lists.freedesktop.org Signed-off-by:
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Liu Shixin authored
Simplify the return expression. Signed-off-by:
Liu Shixin <liushixin2@huawei.com> Signed-off-by:
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- 15 Nov, 2020 7 commits
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Linus Walleij authored
Copy over the width/height in millimeters to the (somewhat redundant) display info, and set up the bus format and bus flags for the display. When used as DPI this display requires DE to be active low and pixel data to be output on the negative edge. It might be that it was previously used with a display controller that either does not support these settings or was hardcoded to use these as default. This information comes from the source code of the Samsung GT-I9070 mobile phone. Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Acked-by:
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Linus Walleij authored
The panel can be connected using 3WIRE, then it is however necessary that the flag SPI_3WIRE is preserved on the device, as we set this from generic device tree parsing code (or similar). Just |= the SPI mode. Signed-off-by:
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Linus Walleij authored
The SPI DCS code was a bit hard to understand as the device accepts 9-bit transfers packed into 16-bit words with the most significant bit in bit 9 of the 16-bit word. Add some clarifying comments. Signed-off-by:
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Linus Walleij authored
This code was found in the Samsung vendor tree for the Samsung GT-I9070 mobile phone. Let's support reading before we implement the 3WIRE protocol for both reading and writing. Signed-off-by:
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Linus Walleij authored
This writing code is equivalent to the spi_write() helper in the SPI framework. Insert a comment that this will always work fine since SPI buffers are in native endianness. Signed-off-by:
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Patrik Jakobsson authored
2D acceleration is only available on PSB and MRST and very slow on both platforms. CPU acceleration is faster so don't bother with 2D accel anymore. Signed-off-by:
Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Reviewed-by:
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Patrik Jakobsson authored
GTT roll support was used to accelerate fb panning on some machines. Unfortunately this never worked properly with multiple monitors and caused issues on others where the framebuffer wouldn't fit in stolen memory. Let's remove it! Signed-off-by:
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- 14 Nov, 2020 5 commits
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Caleb Connolly authored
The OnePlus 6/T devices use different panels however they are functionally identical with the only differences being the resolution. The panels also don't seem to be used by any other devices, just combine them into one driver. The panels are: samsung,sofef00 and samsung,s6e3fc2x01 Signed-off-by:
Caleb Connolly <caleb@connolly.tech> Signed-off-by:
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Caleb Connolly authored
Add compatibles for the samsung,sofef00 and samsung,s6e3fc2x01 panels used in the OnePlus 6 & 6T respectively. Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/panel/panel-tpo-tpg110.c:94: warning: Function parameter or member 'panel_mode' not described in 'tpg110' drivers/gpu/drm/panel/panel-tpo-tpg110.c:372: warning: Function parameter or member 'connector' not described in 'tpg110_get_modes' Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
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Simon Ser authored
Be nice to user-space and log what happened when returning EINVAL in drm_mode_atomic_ioctl. v2: - Migrate to drm_dbg_atomic (Sam) - Add debug log for arg->reserved (Ville) - Drop redundant "atomic" word in log messages (Ville) Signed-off-by:
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Simon Ser authored
Migrate from DRM_DEBUG_ATOMIC to drm_dbg_atomic. Signed-off-by:
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- 13 Nov, 2020 2 commits
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Christian König authored
The pool parameter can be NULL if we free through the shrinker. Signed-off-by:
Christian König <christian.koenig@amd.com> Acked-by:
Alex Deucher <alexander.deucher@amd.com> Tested-by:
Martin Peres <martin.peres@mupuf.org> Acked-by:
Andy Lavr <andy.lavr@gmail.com> Tested-by:
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Dan Carpenter authored
If udl_get_urb() fails then this should return a negative error code but currently it returns success. Fixes: 798ce3fe ("drm/udl: Begin/end access to imported buffers in damage-handler") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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- 12 Nov, 2020 7 commits
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/via/via_dma.c: In function ‘via_cmdbuf_jump’: drivers/gpu/drm/via/via_dma.c:596:11: warning: variable ‘agp_base’ set but not used [-Wunused-but-set-variable] Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/sti/sti_hdmi.h:36:40: warning: ‘colorspace_mode_names’ defined but not used [-Wunused-const-variable=] 36 | static const struct drm_prop_enum_list colorspace_mode_names[] = { | ^~~~~~~~~~~~~~~~~~~~~ Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: dri-devel@lists.freedesktop.org Signed-off-by: -
Lee Jones authored
The precedent has already been set by other macros in the same file. Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/vkms/vkms_drv.c:55:19: warning: variable ‘crtc’ set but not used [-Wunused-but-set-variable] 55 | struct drm_crtc *crtc; | ^~~~ Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Rob Clark <robdclark@gmail.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
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Lee Jones authored
The comment about them (also removed) says: /* fb_rsrc and aper_rsrc aren't really used currently, but still exist * in case we decide we need information on the BAR for BSD in the * future. */ Well that was written 12 years ago in 2008. We are now in the future and they are still superfluous. We can always add them again at a later date if they are ever required. Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/savage/savage_bci.c: In function ‘savage_driver_firstopen’: drivers/gpu/drm/savage/savage_bci.c:580:24: warning: variable ‘aper_rsrc’ set but not used [-Wunused-but-set-variable] drivers/gpu/drm/savage/savage_bci.c:580:15: warning: variable ‘fb_rsrc’ set but not used [-Wunused-but-set-variable] Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c:283:6: warning: no previous prototype for ‘atmel_hlcdc_plane_setup_scaler’ [-Wmissing-prototypes] drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c:44: warning: cannot understand function prototype: 'struct atmel_hlcdc_plane_state ' Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Boris Brezillon <bbrezillon@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by:
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Lee Jones authored
Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c:283:6: warning: no previous prototype for ‘atmel_hlcdc_plane_setup_scaler’ [-Wmissing-prototypes] Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Boris Brezillon <bbrezillon@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by:
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Lee Jones authored
And fix-up a misnamed member description. Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c:33: warning: cannot understand function prototype: 'struct atmel_hlcdc_crtc_state ' drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c:52: warning: cannot understand function prototype: 'struct atmel_hlcdc_crtc ' Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Boris Brezillon <bbrezillon@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Cc: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by:
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- 11 Nov, 2020 2 commits
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Colin Ian King authored
There are two spelling mistakes of the word sync in drm_info and drm_dbg messages. Fix these. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Anitha Chrisanthus authored
Fixed the following W=1 kernel build warnings drivers/gpu/drm/kmb/kmb_plane.h:74:18: warning: ‘kmb_formats_v’ defined but not used [-Wunused-const-variable=] drivers/gpu/drm/kmb/kmb_plane.h:61:18: warning: ‘kmb_formats_g’ defined but not used [-Wunused-const-variable=] Signed-off-by:
Anitha Chrisanthus <anitha.chrisanthus@intel.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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