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2018-06-28kconfig: loop boundary condition fixJerry James
If buf[-1] just happens to hold the byte 0x0A, then nread can wrap around to (size_t)-1, leading to invalid memory accesses. This has caused segmentation faults when trying to build the latest kernel snapshots for i686 in Fedora: https://bugzilla.redhat.com/show_bug.cgi?id=1592374 Signed-off-by: Jerry James <loganjerry@gmail.com> [alexpl@fedoraproject.org: reformatted patch for submission] Signed-off-by: Alexander Ploumistos <alexpl@fedoraproject.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-28kbuild: reword help of LD_DEAD_CODE_DATA_ELIMINATIONMasahiro Yamada
Since commit 5d20ee3192a5 ("kbuild: Allow LD_DEAD_CODE_DATA_ELIMINATION to be selectable if enabled"), HAVE_LD_DEAD_CODE_DATA_ELIMINATION is supposed to be selected by architectures that are capable of this functionality. LD_DEAD_CODE_DATA_ELIMINATION is now users' selection. Update the help message. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-28kconfig: handle P_SYMBOL in print_symbol()Dirk Gouders
Each symbol has a property of type P_SYMBOL since commit 59e89e3ddf85 (kconfig: save location of config symbols). Handle those properties in print_symbol(). Further, place a pointer to print_symbol() in the comment above the list of known property type. Signed-off-by: Dirk Gouders <dirk@gouders.net> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-28console/fbcon: Add support for deferred console takeoverHans de Goede
Currently fbcon claims fbdevs as soon as they are registered and takes over the console as soon as the first fbdev gets registered. This behavior is undesirable in cases where a smooth graphical bootup is desired, in such cases we typically want the contents of the framebuffer (typically a vendor logo) to stay in place as is. The current solution for this problem (on embedded systems) is to not enable fbcon. This commit adds a new FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER config option, which when enabled defers fbcon taking over the console from the dummy console until the first text is displayed on the console. Together with the "quiet" kernel commandline option, this allows fbcon to still be used together with a smooth graphical bootup, having it take over the console as soon as e.g. an error message is logged. Note the choice to detect the first console output in the dummycon driver, rather then handling this entirely inside the fbcon code, was made after 2 failed attempts to handle this entirely inside the fbcon code. The fbcon code is woven quite tightly into the console code, making this to only feasible option. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-06-28fbcon: Call WARN_CONSOLE_UNLOCKED() where applicableHans de Goede
Replace comments about places where the console lock should be held with calls to WARN_CONSOLE_UNLOCKED() to assert that it is actually held. Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-06-28printk: Export is_console_lockedHans de Goede
This is a preparation patch for adding a number of WARN_CONSOLE_UNLOCKED() calls to the fbcon code, which may be built as a module (event though usually it is not). Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Petr Mladek <pmladek@suse.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2018-06-28vt: prevent leaking uninitialized data to userspace via /dev/vcs*Alexander Potapenko
KMSAN reported an infoleak when reading from /dev/vcs*: BUG: KMSAN: kernel-infoleak in vcs_read+0x18ba/0x1cc0 Call Trace: ... kmsan_copy_to_user+0x7a/0x160 mm/kmsan/kmsan.c:1253 copy_to_user ./include/linux/uaccess.h:184 vcs_read+0x18ba/0x1cc0 drivers/tty/vt/vc_screen.c:352 __vfs_read+0x1b2/0x9d0 fs/read_write.c:416 vfs_read+0x36c/0x6b0 fs/read_write.c:452 ... Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:279 kmsan_internal_poison_shadow+0xb8/0x1b0 mm/kmsan/kmsan.c:189 kmsan_kmalloc+0x94/0x100 mm/kmsan/kmsan.c:315 __kmalloc+0x13a/0x350 mm/slub.c:3818 kmalloc ./include/linux/slab.h:517 vc_allocate+0x438/0x800 drivers/tty/vt/vt.c:787 con_install+0x8c/0x640 drivers/tty/vt/vt.c:2880 tty_driver_install_tty drivers/tty/tty_io.c:1224 tty_init_dev+0x1b5/0x1020 drivers/tty/tty_io.c:1324 tty_open_by_driver drivers/tty/tty_io.c:1959 tty_open+0x17b4/0x2ed0 drivers/tty/tty_io.c:2007 chrdev_open+0xc25/0xd90 fs/char_dev.c:417 do_dentry_open+0xccc/0x1440 fs/open.c:794 vfs_open+0x1b6/0x2f0 fs/open.c:908 ... Bytes 0-79 of 240 are uninitialized Consistently allocating |vc_screenbuf| with kzalloc() fixes the problem Reported-by: syzbot+17a8efdf800000@syzkaller.appspotmail.com Signed-off-by: Alexander Potapenko <glider@google.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28serdev: fix memleak on module unloadJohan Hovold
Make sure to free all resources associated with the ida on module exit. Fixes: cd6484e1830b ("serdev: Introduce new bus for serial attached devices") Cc: stable <stable@vger.kernel.org> # 4.11 Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28serial: 8250_pci: Remove stalled entries in blacklistAndy Shevchenko
After the commit 7d8905d06405 ("serial: 8250_pci: Enable device after we check black list") pure serial multi-port cards, such as CH355, got blacklisted and thus not being enumerated anymore. Previously, it seems, blacklisting them was on purpose to shut up pciserial_init_one() about record duplication. So, remove the entries from blacklist in order to get cards enumerated. Fixes: 7d8905d06405 ("serial: 8250_pci: Enable device after we check black list") Reported-by: Matt Turner <mattst88@gmail.com> Cc: Sergej Pupykin <ml@sergej.pp.ru> Cc: Alexandr Petrenko <petrenkoas83@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-and-Tested-by: Matt Turner <mattst88@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28n_tty: Access echo_* variables carefully.Tetsuo Handa
syzbot is reporting stalls at __process_echoes() [1]. This is because since ldata->echo_commit < ldata->echo_tail becomes true for some reason, the discard loop is serving as almost infinite loop. This patch tries to avoid falling into ldata->echo_commit < ldata->echo_tail situation by making access to echo_* variables more carefully. Since reset_buffer_flags() is called without output_lock held, it should not touch echo_* variables. And omit a call to reset_buffer_flags() from n_tty_open() by using vzalloc(). Since add_echo_byte() is called without output_lock held, it needs memory barrier between storing into echo_buf[] and incrementing echo_head counter. echo_buf() needs corresponding memory barrier before reading echo_buf[]. Lack of handling the possibility of not-yet-stored multi-byte operation might be the reason of falling into ldata->echo_commit < ldata->echo_tail situation, for if I do WARN_ON(ldata->echo_commit == tail + 1) prior to echo_buf(ldata, tail + 1), the WARN_ON() fires. Also, explicitly masking with buffer for the former "while" loop, and use ldata->echo_commit > tail for the latter "while" loop. [1] https://syzkaller.appspot.com/bug?id=17f23b094cd80df750e5b0f8982c521ee6bcbf40 Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by: syzbot <syzbot+108696293d7a21ab688f@syzkaller.appspotmail.com> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28n_tty: Fix stall at n_tty_receive_char_special().Tetsuo Handa
syzbot is reporting stalls at n_tty_receive_char_special() [1]. This is because comparison is not working as expected since ldata->read_head can change at any moment. Mitigate this by explicitly masking with buffer size when checking condition for "while" loops. [1] https://syzkaller.appspot.com/bug?id=3d7481a346958d9469bebbeb0537d5f056bdd6e8 Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by: syzbot <syzbot+18df353d7540aa6b5467@syzkaller.appspotmail.com> Fixes: bc5a5e3f45d04784 ("n_tty: Don't wrap input buffer indices at buffer size") Cc: stable <stable@vger.kernel.org> Cc: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-28swiotlb: export swiotlb_dma_opsChristoph Hellwig
For architectures that do not use per-device dma ops we need to export the dma_map_ops structure returned from get_arch_dma_ops(). Fixes: 10314e09 ("riscv: add swiotlb support") Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Andreas Schwab <schwab@suse.de>
2018-06-28drm/omap: gem: Switch to gem_free_object_unlocked()Daniel Vetter
The only thing that omap_gem_free_object does that might need the magic protection of struct_mutex (of keeping all objects alive if that lock is held, even if the last reference is gone) is the mm_list manipulation. This is already protected by the separate omapdrm->list_lock, which means that struct_mutex is not needed by omapdrm. We can switch to gem_free_object_unlocked() Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28drm/omap: gem: Fix mm_list lockingDaniel Vetter
- None of the list walkings where protected. - Switch to a mutex since the list walking at device resume time can sleep when pinning buffers through the tiler. Only thing we need to be careful with here is that while we walk the list we can't unreference any gem objects, since the final unref would result in a recursive deadlock. But the only functions that walk the list is the device resume and debugfs dumping, so all safe. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28drm/omap: gem: Replace struct_mutex usage with omap_obj private lockLaurent Pinchart
The DRM device struct_mutex is used to protect against concurrent GEM object operations that deal with memory allocation and pinning. All those operations are local to a GEM object and don't need to be serialized across different GEM objects. Replace the struct_mutex with a local omap_obj.lock or drop it altogether where not needed. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28drm/omap: gem: Don't take struct_mutex to get GEM object mmap offsetLaurent Pinchart
GEM objects mmap offsets are created by calling drm_gem_create_mmap_offset_size() that doesn't need struct_mutex protection as it includes its own locking, based on a size that is static across the object's life time. Remove the unneeded struct_mutex locking. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28drm/omap: gem: Merge __omap_gem_get_pages() and omap_gem_attach_pages()Laurent Pinchart
The __omap_gem_get_pages() function is a wrapper around omap_gem_attach_pages() that returns the omap_obj->pages pointer through a function argument. Some callers don't need the pages pointer, and all of them can access omap_obj->pages directly. To simplify the code merge the __omap_gem_get_pages() wrapper with omap_gem_attach_pages() and update the callers accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28drm/omap: gem: Rename GEM function with omap_gem_* prefixLaurent Pinchart
get_pages() as a local function name is too generic and easily confused for a generic MM kernel function. Rename it to __omap_gem_get_pages(). Rename the is_contiguous(), is_cache_coherent(), evict(), evict_entry(), fault_1d() and fault_2d() functions for the same reason. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28drm/omap: fix email addressTomi Valkeinen
Change tomi.valkeinen@nokia.com to tomi.valkeinen@ti.com. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28drm/omap: Implement workaround for DRA7 errata ID:i932Venkateswara Rao Mandela
Description of DRA7 Errata i932: In rare circumstances DPLL_VIDEO1 and DPLL_VIDEO2 PLL's may not lock on the first attempt during DSS initialization. When this occurs, a subsequent attempt to relock the PLL will result in PLL successfully locking. This patch does the following as per the errata recommendation: - retries locking the PLL upto 20 times. - The time to wait for a PLL lock set to 1000 REFCLK cycles. We use usleep_range to wait for 1000 REFCLK cycles in the us range. This tight constraint is imposed as a lock later than 1000 REFCLK cycles may have high jitter. - Criteria for PLL lock is extended from check on just the PLL_LOCK bit to check on 6 PLL_STATUS bits. Silicon Versions Impacted: DRA71, DRA72, DRA74, DRA76 - All silicon revisions AM57x - All silicon revisions OMAP4/5 are not impacted by this errata Signed-off-by: Venkateswara Rao Mandela <venkat.mandela@ti.com> [tomi.valkeinen@ti.com: ported to v4.14] Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28gpu: drm: omapdrm: Adding new typedef vm_fault_tSouptick Joarder
Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. Ref-> commit 1c8f422059ae ("mm: change return type to vm_fault_t") Previously vm_insert_mixed() returns err which driver mapped into VM_FAULT_* type. Also return value of vm_insert_mixed() not handled correctly and 0 was returned inside fault_2d() as default. The new function vmf_insert_mixed() will replace this inefficiency by returning correct VM_FAULT_* type. vmf_error() is the newly introduce inline function in 4.17-rc6. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2018-06-28Merge tag 'usb-serial-4.18-rc3' of ↵Greg Kroah-Hartman
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for v4.18-rc3 Here are bunch of new device ids for cp210x. All have been in linux-next with no reported issues. Signed-off-by: Johan Hovold <johan@kernel.org>
2018-06-28Btrfs: fix mount failure when qgroup rescan is in progressFilipe Manana
If a power failure happens while the qgroup rescan kthread is running, the next mount operation will always fail. This is because of a recent regression that makes qgroup_rescan_init() incorrectly return -EINVAL when we are mounting the filesystem (through btrfs_read_qgroup_config()). This causes the -EINVAL error to be returned regardless of any qgroup flags being set instead of returning the error only when neither of the flags BTRFS_QGROUP_STATUS_FLAG_RESCAN nor BTRFS_QGROUP_STATUS_FLAG_ON are set. A test case for fstests follows up soon. Fixes: 9593bf49675e ("btrfs: qgroup: show more meaningful qgroup_rescan_init error message") Signed-off-by: Filipe Manana <fdmanana@suse.com> Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-06-28Btrfs: fix regression in btrfs_page_mkwrite() from vm_fault_t conversionChris Mason
The vm_fault_t conversion commit introduced a ret2 variable for tracking the integer return values from internal btrfs functions. It was sometimes returning VM_FAULT_LOCKED for pages that were actually invalid and had been removed from the radix. Something like this: ret2 = btrfs_delalloc_reserve_space() // returns zero on success lock_page(page) if (page->mapping != inode->i_mapping) goto out_unlock; ... out_unlock: if (!ret2) { ... return VM_FAULT_LOCKED; } This ends up triggering this WARNING in btrfs_destroy_inode() WARN_ON(BTRFS_I(inode)->block_rsv.size); xfstests generic/095 was able to reliably reproduce the errors. Since out_unlock: is only used for errors, this fix moves it below the if (!ret2) check we use to return VM_FAULT_LOCKED for success. Fixes: a528a2415087 (btrfs: change return type of btrfs_page_mkwrite to vm_fault_t) Signed-off-by: Chris Mason <clm@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-06-28btrfs: quota: Set rescan progress to (u64)-1 if we hit last leafQu Wenruo
Commit ff3d27a048d9 ("btrfs: qgroup: Finish rescan when hit the last leaf of extent tree") added a new exit for rescan finish. However after finishing quota rescan, we set fs_info->qgroup_rescan_progress to (u64)-1 before we exit through the original exit path. While we missed that assignment of (u64)-1 in the new exit path. The end result is, the quota status item doesn't have the same value. (-1 vs the last bytenr + 1) Although it doesn't affect quota accounting, it's still better to keep the original behavior. Reported-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Fixes: ff3d27a048d9 ("btrfs: qgroup: Finish rescan when hit the last leaf of extent tree") Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
2018-06-28Merge tag 'drm-misc-next-2018-06-27' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 4.19: Cross-subsystem Changes: devicetree documentation dt-bindings defintions for sun8i (Jernej Skrabec) Core Changes: Consider drivers setting DRIVER_ATOMIC as atomic (Eric Anholt) Improvements for in-kernel clients (Noralf Trønnes) Export and rename drm_crtc_port_mask() (Jernej Skrabec) Driver Changes: v3d: Add looking for GPU scheduler jobs management (Eric Anholt) Add Ilitek ILI9881c panel driver(Maxime Ripard) rockchip: vop: fixup linebuffer mode calc error (Sandy Huang) tinydrm: new driver for ILI9341 display panels (David Lechner) sun4i: Add TCON TOP driver (Jernej Skrabec) Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180628010018.GA10929@juma
2018-06-28Merge tag 'drm-intel-next-2018-06-20' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-next Chris is doing many reworks that allow us to get full-ppgtt supported on all platforms back to HSW. As well many other fix and improvements, Including: - Use GEM suspend when aborting initialization (Chris) - Change i915_gem_fault to return vm_fault_t (Chris) - Expand VMA to Non gem object entities (Chris) - Improve logs for load failure, but quite logging on fault injection to avoid noise on CI (Chris) - Other page directory handling fixes and improvements for gen6 (Chris) - Other gtt clean-up removing redundancies and unused checks (Chris) - Reorder aliasing ppgtt fini (Chris) - Refactor of unsetting obg->mm.pages (Chris) - Apply batch location restrictions before pinning (Chris) - Ringbuffer fixes for context restore (Chris) - Execlist fixes on freeing error pointer on allocation error (Chris) - Make closing request flush mandatory (Chris) - Move GEM sanitize from resume_early to resume (Chris) - Improve debug dumps (Chris) - Silent compiler for selftest (Chris) - Other execlists changes to improve hangcheck and reset. - Many gtt page directory fixes and improvements (Chris) - Reorg context workarounds (Chris) - Avoid ERR_PTR dereference on selftest (Chris) Other GEM related work: - Stop trying to reset GPU if reset failed (Mika) - Add HW workaround for KBL to fix GPU reset (Mika) - Fix context ban and hang accounting for client (Mika) - Fixes on OA perf (Michel, Jani) - Refactor on GuC log mechanisms (Piotr) - Enable provoking vertex fix on Gen9 system (Kenneth) More ICL patches for Display enabling: - ICL - 10-bit support for HDMI (RK) - ICL - Start adding TBT PLL (Paulo) - ICL - DDI HDMK level selection (Manasi) - ICL - GMBUS GPIO pin mapping fix (Mahesh) - ICL - Adding DP_AUX_E support (James) - ICL - Display interrupts handling (DK) Other display fixes and improvements: - Fix sprite destination color keying on SKL+ (Ville) - Fixes and improvements on PCH detection, specially for non PCH systems (Jani) - Document PCH_NOP (Lucas) - Allow DBLSCAN user modes with eDP/LVDS/DSI (Ville) - Opregion and ACPI cleanup and organization (Jani) - Kill delays when activation psr (Rodrigo) - ...and a consequent fix of the psr activation flow (DK) - Fix HDMI infoframe setting (Imre) - Fix Display interrupts and modes on old gens (Ville) - Start switching to kernel unsigned int types (Jani) - Introduction to Amber Lake and Whiskey Lake platforms (Jose) - Audio clock fixes for HBR3 (RK) - Standardize i915_reg.h definitions according to our doc and checkpatch (Paulo) - Remove unused timespec_to_jiffies_timeout function (Arnd) - Increase the scope of PSR wake fix for other VBTs out there (Vathsala) - Improve debug msgs with prop name/id (Ville) - Other clean up on unecessary cursor size defines (Ville) - Enforce max hdisplay/hblank_start limits on HSW/BDW (Ville) - Make ELD pointers constant (Jani) - Fix for PSR VBT parse (Colin) - Add warn about unsupported CDCLK rates (Imre) Signed-off-by: Dave Airlie <airlied@redhat.com> # gpg: Signature made Thu 21 Jun 2018 07:12:10 AM AEST # gpg: using RSA key FA625F640EEB13CA # gpg: Good signature from "Rodrigo Vivi <rodrigo.vivi@intel.com>" # gpg: aka "Rodrigo Vivi <rodrigo.vivi@gmail.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 6D20 7068 EEDD 6509 1C2C E2A3 FA62 5F64 0EEB 13CA Link: https://patchwork.freedesktop.org/patch/msgid/20180625165622.GA21761@intel.com
2018-06-28Merge branch 'drm-fixes-4.18' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes Single amdgpu regression fix for stable. Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180622203002.26883-1-alexander.deucher@amd.com
2018-06-28Merge branch 'for-upstream/malidp-fixes' of git://linux-arm.org/linux-ld ↵Dave Airlie
into drm-fixes Misc set of malidp fixes. Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180622144444.GD2037@e110455-lin.cambridge.arm.com
2018-06-27proc: add proc_seq_releaseChunyu Hu
kmemleak reported some memory leak on reading proc files. After adding some debug lines, find that proc_seq_fops is using seq_release as release handler, which won't handle the free of 'private' field of seq_file, while in fact the open handler proc_seq_open could create the private data with __seq_open_private when state_size is greater than zero. So after reading files created with proc_create_seq_private, such as /proc/timer_list and /proc/vmallocinfo, the private mem of a seq_file is not freed. Fix it by adding the paired proc_seq_release as the default release handler of proc_seq_ops instead of seq_release. Fixes: 44414d82cfe0 ("proc: introduce proc_create_seq_private") Reviewed-by: Christoph Hellwig <hch@lst.de> CC: Christoph Hellwig <hch@lst.de> Signed-off-by: Chunyu Hu <chuhu@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2018-06-27ARM64: dts: meson-gxl: fix Mali GPU compatible stringMartin Blumenstingl
meson-gxl-mali.dtsi is only used on GXL SoCs. Thus it should use the GXL specific compatible string instead of the GXBB one. For now this is purely cosmetic since the (out-of-tree) lima driver for this GPU currently uses the "arm,mali-450" match instead of the SoC specific one. However, update the .dts to match the documentation since this driver behavior might change in the future. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-27ARM64: dts: meson-axg: fix ethernet stability issueJerome Brunet
Like the odroid-c2 and wetek, the s400 uses the RTL8211F and seems to suffer from the kind of stability issue. Doing an iperf3 download test, we can see a significant number of LPI interrupts on the tx path. After a short while (5 to 15 seconds), the network connection dies. If using rootfs over NFS, the connection may also break during the boot sequence. We still don't have a real explanation for this problem so let's disable EEE once again. Fixes: f6f6ac914b82 ("ARM64: dts: meson-axg: enable ethernet for A113D S400 board") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-27ARM64: dts: meson-gx: fix ATF reserved memory regionKevin Hilman
Vendor firmware/uboot has different reserved regions depending on firmware version, but current codebase reserves the same regions on GXL and GXBB, so move the additional reserved memory region to common .dtsi. Found when putting a recent vendor u-boot on meson-gxbb-p200. Suggested-by: Neil Armstrong <narmstrong@baylibre.com> Cc: stable@vger.kernel.org Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-27ARM64: dts: meson-gxl-s905x-p212: Add phy-supply for usb0Neil Armstrong
Like LibreTech-CC, the USB0 needs the 5V regulator to be enabled to power the devices on the P212 Reference Design based boards. Fixes: b9f07cb4f41f ("ARM64: dts: meson-gxl-s905x-p212: enable the USB controller") Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-27ARM64: dts: meson: fix register ranges for SD/eMMCKevin Hilman
Based on updated information from Amlogic, correct the register range for the SD/eMMC blocks to the right size. Reported-by: Yixun Lan <yixun.lan@amlogic.com> Tested-by: Yixun Lan <yixun.lan@amlogic.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-27ARM64: dts: meson: disable sd-uhs modes on the libretech-ccJerome Brunet
There is a problem with the sd-uhs mode when doing a soft reboot. Switching back from 1.8v to 3.3v messes with the card, which no longer respond (timeout errors). According to the specification, we should perform a card reset (power cycling the card) but this is something we cannot control on this design. Then the only solution to restore the communication with the card is an "unplug-plug" which is not acceptable Until we find a solution, if any, disable the sd-uhs modes on this design. For the people using uhs at the moment, there will a performance drop as a result. Fixes: 3cde63ebc85c ("ARM64: dts: meson-gxl: libretech-cc: enable high speed modes") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Cc: stable@vger.kernel.org Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2018-06-27drm/i915/icp: Add Interrupt SupportAnusha Srivatsa
This patch addresses Interrupts from south display engine (SDE). ICP has two registers - SHOTPLUG_CTL_DDI and SHOTPLUG_CTL_TC. Introduce these registers and their intended values. Introduce icp_irq_handler(). The icp_irq_postinstall() takes care of enabling all PCH interrupt sources, to unmask them as needed with SDEIMR, as is done done by ibx_irq_pre_postinstall() for earlier platforms. We do not need to explicitly call the ibx_irq_pre_postinstall(). Also, while changing these, s/CPT/PPT/CPT-CNP comment. v2: - remove redundant register defines.(Lucas) - Change register names to be more consistent with previous platforms (Lucas) v3: -Reorder bit defines to a more appropriate location. Change the comments. Confirm in the commit message that icp_irq_postinstall() need not go to ibx_irq_pre_postinstall() and ibx_irq_postinstall() as in earlier platforms. (Paulo) Cc: Lucas De Marchi <lucas.de.marchi@gmail.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> [Paulo: coding style bikesheds and rebases]. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1530046343-30649-1-git-send-email-anusha.srivatsa@intel.com
2018-06-27drm/sun4i: DW HDMI: Expand algorithm for possible crtcsJernej Skrabec
drm_of_find_possible_crtcs() doesn't work when DW HDMI encoder is connected to TCON (crtc) through mux in TCON TOP. In that case TCON TOP HDMI mux input port has to be manually traversed and checked if it matches any known crtc. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-23-jernej.skrabec@siol.net
2018-06-27drm: of: Export and rename drm_crtc_port_mask()Jernej Skrabec
Function is useful when drm_of_find_possible_crtcs() can't be used and custom parsing is needed. This can happen for example when there is a node with multiple muxes between crtc and encoder. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> [maxime: change the function to have a consistent prefix] Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-22-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add support for A64 HDMI PHYJernej Skrabec
PHY is the same as in H3, except it can switch between two clock parents. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-21-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add support for second clock parent to DW HDMI PHY clk driverJernej Skrabec
Expand HDMI PHY clock driver to support second clock parent. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-20-jernej.skrabec@siol.net
2018-06-27drm/sun4i: DW HDMI PHY: Add support for second PLLJernej Skrabec
Some DW HDMI PHYs, like those found in A64 and R40 SoCs, can select between two clock parents. Add code which reads second PLL from DT. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-19-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't change clock bits in DW HDMI PHY driverJernej Skrabec
DW HDMI PHY driver and PHY clock driver share same registers. Make sure that DW HDMI PHY setup code doesn't change any clock related bits. During initialization, set PHY PLL parent bit to 0. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-18-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Enable DW HDMI PHY clockJernej Skrabec
Current DW HDMI PHY code never prepares and enables PHY clock after it is created. It's just used as it is. This may work in some cases, but it's clearly wrong. Fix it by adding proper calls to enable/disable PHY clock. Fixes: 4f86e81748fe ("drm/sun4i: Add support for H3 HDMI PHY variant") Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-17-jernej.skrabec@siol.net
2018-06-27dt-bindings: display: sun4i-drm: Add description of A64 HDMI PHYJernej Skrabec
A64 HDMI PHY is similar to H3 HDMI PHY except it has two possible PLL clock parents. It is compatible to other HDMI PHYs, like that found in R40. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-16-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Add support for R40 mixersJernej Skrabec
Both mixers have similar capabilities as others SoCs with DE2. First mixer has 1 VI and 3 UI planes and supports HW scaling on all planes. Second mixer has 1 VI and 1 UI planes and also supports HW scaling on all planes. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-15-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't check for panel or bridge on TV TCONsJernej Skrabec
TV TCONs are always connected to TV or HDMI encoder, so it doesn't make sense to check if panel or bridge is connected to them. Check if TCON has channel 0 and only then check for connected panel or bridges. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-13-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't check for LVDS and RGB when TCON has only ch1Jernej Skrabec
LVDS and RGB interfaces are always connected to TCONs which have channel 0. It doesn't make sense to try to init them on TV TCONs. Add a check if TCON has channel 0 before trying to init LVDS or RGB interface. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-12-jernej.skrabec@siol.net
2018-06-27drm/sun4i: tcon: Generalize engine search algorithmJernej Skrabec
Current "old" method to find engine worked pretty well for DE2. However, it doesn't work when TCON TOP is between mixer (engine) and TCON. TCON TOP has multiple input ports, but current engine search algorithm expects only one. This can be fixed by first looking for output port id and selecting matching input by subtracting 1 for the next round. This work even if there is only one input and output. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-11-jernej.skrabec@siol.net
2018-06-27drm/sun4i: Don't skip TCONs if they don't have channel 0Jernej Skrabec
TV TCONs (channel 1 only) are always connected to TV or HDMI encoder. Because of that, all output endpoints on such TCON node will point to a encoder which is part of component framework. Correct current graph traversing algorithm in such way that it doesn't skip output enpoints with id 0 on TV TCONs. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180625120304.7543-10-jernej.skrabec@siol.net
generated by cgit (git 2.34.1) at 2025-09-14 11:18:16 +0000