- 08 Jun, 2020 4 commits
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Daniel Vetter authored
- Ditch the ->pages array - Make it a private gem bo, which means no shmem object, which means fireworks if anyone calls drm_gem_object_get_pages. But we've just made sure that's all covered. v2: Rebase v3: I forgot to remove the page_count mangling from the free path too. Noticed by Boris while testing. Cc: Boris Brezillon <boris.brezillon@collabora.com> Tested-by:
Boris Brezillon <boris.brezillon@collabora.com> Acked-by:
Thomas Zimmermann <tzimmermann@suse.de> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Rob Herring <robh@kernel.org> Cc: Noralf Trønnes <noralf@tronnes.org> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200529140542.2103713-1-daniel.vetter@ffwll.ch
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Daniel Vetter authored
Just a bit of light paranoia. Also sprinkle this check over drm_gem_shmem_get_sg_table, which should only be called when exporting, same for the pin/unpin functions, on which it relies to work correctly. Acked-by:
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Nirmoy Das authored
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 <nirmoy.das@amd.com> Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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Simon Ser authored
Describe what a "BAD" link-status means for user-space and how it should handle it. The logic described has been implemented in igt [1]. v2: - Change wording to avoid "enabled" (Daniel) - Add paragraph about multiple connectors sharing the same CRTC (Pekka) - Add paragraph about performing an atomic commit on a connector without updating the link-status property (Daniel) v3: - Fix description of what happens when link-status isn't reset to "GOOD", and when link-status is reset without ALLOW_MODESET (Daniel, Ville) - Changing link-status to "BAD" is a no-op - Clearly state that "BAD" means black screen (Manasi) [1]: https://gitlab.freedesktop.org/drm/igt-gpu-tools/-/commit/fbe61f529737191d0920521946a575bd55f00fbeSigned-off-by:
Simon Ser <contact@emersion.fr> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Pekka Paalanen <ppaalanen@gmail.com> Reviewed-by:
Daniel Vetter <daniel@ffwll.ch> Acked-by:
Pekka Paalanen <ppaalanen@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/kFylMmeRMGJk-oi8f-Td8A7GNa1C-GsK23-vjKg77VhWfwpkLJg7QxFlQ_g9KdVxZiyWl9eJWpUGa5PYasR9YcyvIbuBmHVfKeHb4rH0yTM=@emersion.fr
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- 05 Jun, 2020 2 commits
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Liu Ying authored
This patch adds support for Kaohsiung Opto-Electronics Inc. 10.1" TX26D202VM0BWA WUXGA(1920x1200) TFT LCD panel with LVDS interface. The panel has dual LVDS channels. My panel is manufactured by US Micro Products(USMP). There is a tag at the back of the panel, which indicates the panel type is 'TX26D202VM0BWA' and it's made by KOE in Taiwan. The panel spec from USMP can be found at: https://www.usmicroproducts.com/sites/default/files/datasheets/USMP-T101-192120NDU-A0.pdf The below panel spec from KOE is basically the same to the one from USMP. However, the panel type 'TX26D202VM0BAA' is a little bit different. It looks that the two types of panel are compatible with each other. http://www.koe.j-display.com/upload/product/TX26D202VM0BAA.pdf Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
Liu Ying <victor.liu@nxp.com> Reviewed-by:
Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1590991880-24273-1-git-send-email-victor.liu@nxp.com
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Liu Ying authored
Add compatible to panel-simple for Kaohsiung Opto-Electronics Inc. 10.1" WUXGA(1920x1200) TX26D202VM0BWA TFT LCD panel with LVDS interface. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Rob Herring <robh+dt@kernel.org> Signed-off-by:
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- 04 Jun, 2020 2 commits
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Laurent Pinchart authored
None of the DSI panels set the connector_type in their panel_desc descriptor. As they are all guaranteed to be DSI panels, that's an easy fix, set the connector type to DRM_MODE_CONNECTOR_DSI. Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
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Nirmoy Das authored
Fixes: 0cdea445 ("drm/mm: optimize rb_hole_addr rbtree search") Signed-off-by:
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- 03 Jun, 2020 9 commits
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Daniel Vetter authored
This is already taken care of by drm_atomic_helper_shutdown(), and in that case only for the CRTC which are actually on. Only tricky bit here is that we kill the interrupt handling before we shut down crtc, so need to reorder that. Acked-by:
Liviu Dudau <liviu.dudau@arm.com> Signed-off-by:
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Daniel Vetter authored
This is already done as part of the drm_atomic_helper_shutdown(), and in that case only for the crtc which are actually on. v2: I overlooked that malidp also needs to have it's interrupt shut down reordered. Acked-by:
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Daniel Vetter authored
Currently this seems to work by converting the sgt into a pages array, and then treating it like a native object. Do the right thing and redirect mmap to the exporter. With this nothing is calling get_pages anymore on imported dma-buf, and we can start to remove the use of the ->pages array for that case. v2: Rebase Tested-by:
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Daniel Vetter authored
There's no direct harm, because for the shmem helpers these are noops on imported buffers. The trouble is in the locks these take - I want to change dma_buf_vmap locking, and so need to make sure that we only ever take certain locks on one side of the dma-buf interface: Either for exporters, or for importers. v2: Change the control flow less compared to what's there (Thomas) Tested-by:
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Daniel Vetter authored
There's no direct harm, because for the shmem helpers these are noops on imported buffers. The trouble is in the locks these take - I want to change dma_buf_vmap locking, and so need to make sure that we only ever take certain locks on one side of the dma-buf interface: Either for exporters, or for importers. Acked-by:
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Daniel Vetter authored
drm_gem_shmem_get_sg_table is meant to implement obj->funcs->get_sg_table, for prime exporting. The one we want is drm_gem_shmem_get_pages_sgt, which also handles imported dma-buf, not just native objects. v2: Rebase, this stuff moved around in commit 2f2aa137 Author: Gerd Hoffmann <kraxel@redhat.com> Date: Fri Feb 7 08:46:38 2020 +0100 drm/virtio: move virtio_gpu_mem_entry initialization to new function Acked-by:
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Daniel Vetter authored
- Move the shmem helper section to the drm-mm.rst file, next to the vram helpers. Makes a lot more sense there with the now wider scope. Also, that's where the all the other backing storage stuff resides. It's just the framebuffer helpers that should be in the kms helper section. - Try to clarify which functiosn are for implementing drm_gem_object_funcs, and which for drivers to call directly. At least one driver screwed that up a bit. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Rob Herring <robh@kernel.org> Cc: Noralf Trønnes <noralf@tronnes.org> Reviewed-by:
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Daniel Vetter authored
No real functional change, since this just converts an annoying Oops into a more harmless WARNING backtrace. It's still a driver bug. Acked-by:
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Daniel Vetter authored
I honestly don't exactly understand what's going on here, but the current code is wrong for sure: It calls dma_buf_vunmap without ever calling dma_buf_vmap. What I'm not sure about is whether the WARN_ON is correct: - msm imports dma-buf using drm_prime_sg_to_page_addr_arrays. Which is a pretty neat layering violation of how you shouldn't peek behind the curtain of the dma-buf exporter, but par for course. Note that all the nice new helpers don't (and we should probably have a bit a warning about this in the kerneldoc). - but then in the get_vaddr() in msm_gem.c, we seems to happily wrap a vmap() around any object with ->pages set (so including imported dma-buf). - I'm not seeing any guarantees that userspace can't use an imported dma-buf for e.g. MSM_SUBMIT_CMD_BUF in a5xx_submit_in_rb, so no guarantees that an imported dma-buf won't end up with a ->vaddr set. But even if that WARN_ON is wrong, cleaning up a vmap() done by msm by calling dma_buf_vunmap is the wrong thing to do. v2: Rob said in review that we do indeed have a gap in get_vaddr() that needs to be plugged. But the users I've found aren't legit users on imported dma-buf, so we can just reject that. Reviewed-by:
Rob Clark <robdclark@gmail.com> Signed-off-by:
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- 01 Jun, 2020 9 commits
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Simon Ser authored
This patch adds docs for the ACTIVE and MODE_ID CRTC properties. Signed-off-by:
Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by:
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Joe Perches authored
IS_BUILTIN can be use to replace various initializations like #if CONFIG_<FOO> int val = 1; #else int val = 0; #endif so do so. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/b1cf967015c5beafa475aaa30d8e21a58caff870.camel@perches.com
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Tiezhu Yang authored
When call function devm_platform_ioremap_resource(), we should use IS_ERR() to check the return value and return PTR_ERR() if failed. Signed-off-by:
Tiezhu Yang <yangtiezhu@loongson.cn> Cc: Xuefeng Li <lixuefeng@loongson.cn> Signed-off-by:
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Christophe JAILLET authored
'dma_alloc_coherent()' must be balanced by a call to 'dma_free_coherent()' not 'dma_free_wc()'. The correct dma_free_ function is already used in the error handling path of the probe function. Fixes: 77e19675 ("[ARM] pxafb: allow video memory size to be configurable") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Jani Nikula <jani.nikula@intel.com> cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Cc: Eric Miao <eric.miao@marvell.com> Signed-off-by:
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Bernard Zhao authored
Eliminate the magic numbers, add vendor infoframe size macro like other hdmi modules. Signed-off-by:
Bernard Zhao <bernard@vivo.com> Cc: Uma Shankar <uma.shankar@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Shashank Sharma <shashank.sharma@intel.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: opensource.kernel@vivo.com [b.zolnierkie: add "hdmi" to the patch summary] [b.zolnierkie: fix "vender" -> vendor" typo in the patch description] Signed-off-by:
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Dejin Zheng authored
A call of the function do_take_over_console() can fail here. The corresponding system resources were not released then. Thus add a call of iounmap() and release_mem_region() together with the check of a failure predicate. and also add release_mem_region() on device removal. Fixes: e86bb8ac ("[PATCH] VT binding: Make newport_con support binding") Suggested-by:
Dejin Zheng <zhengdejin5@gmail.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@osdl.org> Signed-off-by:
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Dejin Zheng authored
the sfb->fb->screen_base is not save the value get by iounmap() when the chip id is 0x720. so iounmap() for address sfb->fb->screen_base is not right. Fixes: 1461d667 ("staging: sm7xxfb: merge sm712fb with fbdev") Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Cc: Teddy Wang <teddy.wang@siliconmotion.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Jason Yan authored
Fix the following coccicheck warning: drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c:461:15-32: WARNING: Comparison to bool drivers/video/fbdev/omap2/omapfb/dss/dispc.c:891:5-35: WARNING: Comparison of 0/1 to bool variable Signed-off-by:
Jason Yan <yanaijie@huawei.com> Reviewed-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Andrew F. Davis <afd@ti.com> Signed-off-by:
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Simon Ser authored
There are a bunch of other writable connector properties now. Signed-off-by:
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- 31 May, 2020 5 commits
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John Hubbard authored
This code was using get_user_pages*(), in a "Case 2" scenario (DMA/RDMA), using the categorization from [1]. That means that it's time to convert the get_user_pages*() + put_page() calls to pin_user_pages*() + unpin_user_pages() calls. There is some helpful background in [2]: basically, this is a small part of fixing a long-standing disconnect between pinning pages, and file systems' use of those pages. [1] Documentation/core-api/pin_user_pages.rst [2] "Explicit pinning of user-space pages": https://lwn.net/Articles/807108/ Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Gustavo A. R. Silva <gustavo@embeddedor.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Signed-off-by:John Hubbard <jhubbard@nvidia.com> Signed-off-by:
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John Hubbard authored
Dealing with the return value of get_user_pages*() variants has a few classic pitfalls, and this driver found one of them: the return value might be zero, positive, or -errno. And if positive, it might be fewer pages than were requested. And if fewer pages than requested, then the caller should return (via put_page()) the pages that *were* pinned. This driver was doing that *except* that it had a problem with the -errno case, which was being stored in an unsigned int, and which would case an interesting mess if it ever happened: nr_pages would be interpreted as a spectacularly huge unsigned value, rather than a small negative value. Also, it was unnecessarily overriding a potentially informative -errno, with -EINVAL, in some cases. Instead: clamp the nr_pages to zero or positive, so that the error handling works. And return the -errno value from get_user_pages*(), unchanged, if we get one. And explain this with comments, seeing as how it is error-prone. Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Gustavo A. R. Silva <gustavo@embeddedor.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Signed-off-by:
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Sam Ravnborg authored
Replace all the WARN_* variants with their drm_WARN counterparts. Signed-off-by:
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Sam Ravnborg authored
Replace all DRM_* logging functions with their drm_ counterparts. checkpatch emits a few "quoted string split across lines", which is left as is. The strings was already split in the original code base and it would not increase readability to fix them. v2: - added braces to if statement (Thomas) Signed-off-by:
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Sidong Yang authored
Change wrong function name drm_modest_lock_all() to drm_modeset_lock_all() Signed-off-by:
Sidong Yang <realwakka@gmail.com> Signed-off-by:
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- 29 May, 2020 1 commit
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Daniel Vetter authored
For historical reasons it's called dev->num_crtcs, which is rather confusing ever since kms was added. But now we have a nice helper, so let's use it for better readability! Only code change is in atomic helpers: vblank support means that dev->irq_enabled must be set too. Another one of these quirky things ... But since it's implied we can simplify that check. Reviewed-by:
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- 27 May, 2020 8 commits
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Ville Syrjälä authored
gma500 only uses mode->private_flags to convey the sdvo pixel multiplier from the encoder .mode_fixup() hook to the encoder .mode_set() hook. Those always seems get called as a pair so let's just stuff the pixel multiplier into the encoder itself as there are no state objects we could use in this non-atomic driver. Paves the way for nuking mode->private_flag. Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> CC: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200428171940.19552-15-ville.syrjala@linux.intel.com
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Ville Syrjälä authored
htotal*vtotal*vrefresh ~= clock. So just say "clock" when we mean it. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Ville Syrjälä authored
Reorganize drm_display_mode to eliminate all the holes. We'll put all the actual timings to the start of the struct and all the extra junk to the end. Gets the size down to 136 bytes on 64bit and 120 bytes on 32bit. With a bit more work we should be able to get this below the two cacheline mark even on 64bit. v2: Rebase due to DRM_MODE_TYPE_USERDEF comment change Reviewed-by:
Emil Velikov <emil.velikov@collabora.com> Signed-off-by:
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Ville Syrjälä authored
Remove the pointless whole-function indentation. Also don't need to worry about negative values anymore since we switched everything to u16. Reviewed-by:
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Ville Syrjälä authored
Store the timings (apart from the clock) as u16. The uapi mode struct already uses u16 for everything so using something bigger internally doesn't really help us. Reviewed-by:
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Ville Syrjälä authored
The mode flags are direclty exposed in the uapi as u32. Use the same size type to store them internally. Reviewed-by:
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Ville Syrjälä authored
We only have 7 bits defined for mode->type. Shrink the storage to u8. Reviewed-by:
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Ville Syrjälä authored
Instead of supporting ~2000km wide displayes let's limit ourselves to ~65m. That seems plenty big enough to me. Even with EDID_QUIRK_DETAILED_IN_CM EDIDs seem to be limited to 10*0xfff which fits into the 16 bits. Reviewed-by:
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