linux/include/drm, branch v5.8

Merge tag 'drm-misc-fixes-2020-07-28' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2020-07-29T02:46:58Z

* drm: fix possible use-after-free * dbi: fix SPI Type 1 transfer * drm_fb_helper: use memcpy_io on bochs' sparc64 * mcde: fix stability * panel: fix display noise on auo,kd101n80-45na * panel: delay HPD checks for boe_nv133fhm_n61 * bridge: drop connector check in nwl-dsi bridge * bridge: set proper bridge type for adv7511 * of: fix a double free Signed-off-by: Dave Airlie From: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20200728110446.GA8076@linux-uq9g

drm/drm_fb_helper: fix fbdev with sparc64

2020-07-27T14:47:46Z

Recent kernels have been reported to panic using the bochs_drm framebuffer under qemu-system-sparc64 which was bisected to commit 7a0483ac4ffc ("drm/bochs: switch to generic drm fbdev emulation"). The backtrace indicates that the shadow framebuffer copy in drm_fb_helper_dirty_blit_real() is trying to access the real framebuffer using a virtual address rather than use an IO access typically implemented using a physical (ASI_PHYS) access on SPARC. The fix is to replace the memcpy with memcpy_toio() from io.h. memcpy_toio() uses writeb() where the original fbdev code used sbus_memcpy_toio(). The latter uses sbus_writeb(). The difference between writeb() and sbus_memcpy_toio() is that writeb() writes bytes in little-endian, where sbus_writeb() writes bytes in big-endian. As endian does not matter for byte writes they are the same. So we can safely use memcpy_toio() here. Note that this only fixes bochs, in general fbdev helpers still have issues with mixing up system memory and __iomem space. Fixing that will require a lot more work. v3: - Improved changelog (Daniel) - Added FIXME to fbdev_use_iomem (Daniel) v2: - Added missing __iomem cast (kernel test robot) - Made changelog readable and fix typos (Mark) - Add flag to select iomem - and set it in the bochs driver Signed-off-by: Sam Ravnborg Reported-by: Mark Cave-Ayland Reported-by: kernel test robot Tested-by: Mark Cave-Ayland Reviewed-by: Daniel Vetter Cc: Mark Cave-Ayland Cc: Thomas Zimmermann Cc: Gerd Hoffmann Cc: "David S. Miller" Cc: sparclinux@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20200709193016.291267-1-sam@ravnborg.org Link: https://patchwork.freedesktop.org/patch/msgid/20200725191012.GA434957@ravnborg.org

drm/edid: Replace zero-length array with flexible-array

2020-06-16T04:08:31Z

There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://github.com/KSPP/linux/issues/21 Signed-off-by: Gustavo A. R. Silva

drm: remove drm specific kmap_atomic code

2020-06-05T02:06:22Z

kmap_atomic_prot() is now exported by all architectures. Use this function rather than open coding a driver specific kmap_atomic. [arnd@arndb.de: include linux/highmem.h] Link: http://lkml.kernel.org/r/20200508220150.649044-1-arnd@arndb.de Signed-off-by: Ira Weiny Signed-off-by: Arnd Bergmann Signed-off-by: Andrew Morton Reviewed-by: Christian König Reviewed-by: Christoph Hellwig Acked-by: Daniel Vetter Cc: Al Viro Cc: Andy Lutomirski Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Chris Zankel Cc: Dan Williams Cc: Dave Hansen Cc: "David S. Miller" Cc: Helge Deller Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: "James E.J. Bottomley" Cc: Max Filippov Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20200507150004.1423069-12-ira.weiny@intel.com Signed-off-by: Linus Torvalds

Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm

2020-06-02T22:04:15Z

Pull drm updates from Dave Airlie: "Highlights: - Core DRM had a lot of refactoring around managed drm resources to make drivers simpler. - Intel Tigerlake support is on by default - amdgpu now support p2p PCI buffer sharing and encrypted GPU memory Details: core: - uapi: error out EBUSY when existing master - uapi: rework SET/DROP MASTER permission handling - remove drm_pci.h - drm_pci* are now legacy - introduced managed DRM resources - subclassing support for drm_framebuffer - simple encoder helper - edid improvements - vblank + writeback documentation improved - drm/mm - optimise tree searches - port drivers to use devm_drm_dev_alloc dma-buf: - add flag for p2p buffer support mst: - ACT timeout improvements - remove drm_dp_mst_has_audio - don't use 2nd TX slot - spec recommends against it bridge: - dw-hdmi various improvements - chrontel ch7033 support - fix stack issues with old gcc hdmi: - add unpack function for drm infoframe fbdev: - misc fbdev driver fixes i915: - uapi: global sseu pinning - uapi: OA buffer polling - uapi: remove generated perf code - uapi: per-engine default property values in sysfs - Tigerlake GEN12 enabled. - Lots of gem refactoring - Tigerlake enablement patches - move to drm_device logging - Icelake gamma HW readout - push MST link retrain to hotplug work - bandwidth atomic helpers - ICL fixes - RPS/GT refactoring - Cherryview full-ppgtt support - i915 locking guidelines documented - require linear fb stride to be 512 multiple on gen9 - Tigerlake SAGV support amdgpu: - uapi: encrypted GPU memory handling - uapi: add MEM_SYNC IB flag - p2p dma-buf support - export VRAM dma-bufs - FRU chip access support - RAS/SR-IOV updates - Powerplay locking fixes - VCN DPG (powergating) enablement - GFX10 clockgating fixes - DC fixes - GPU reset fixes - navi SDMA fix - expose FP16 for modesetting - DP 1.4 compliance fixes - gfx10 soft recovery - Improved Critical Thermal Faults handling - resizable BAR on gmc10 amdkfd: - uapi: GWS resource management - track GPU memory per process - report PCI domain in topology radeon: - safe reg list generator fixes nouveau: - HD audio fixes on recent systems - vGPU detection (fail probe if we're on one, for now) - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it) - SVM improvements/fixes - NVIDIA format modifier support - Misc other fixes. adv7511: - HDMI SPDIF support ast: - allocate crtc state size - fix double assignment - fix suspend bochs: - drop connector register cirrus: - move to tiny drivers. exynos: - fix imported dma-buf mapping - enable runtime PM - fixes and cleanups mediatek: - DPI pin mode swap - config mipi_tx current/impedance lima: - devfreq + cooling device support - task handling improvements - runtime PM support pl111: - vexpress init improvements - fix module auto-load rcar-du: - DT bindings conversion to YAML - Planes zpos sanity check and fix - MAINTAINERS entry for LVDS panel driver mcde: - fix return value mgag200: - use managed config init stm: - read endpoints from DT vboxvideo: - use PCI managed functions - drop WC mtrr vkms: - enable cursor by default rockchip: - afbc support virtio: - various cleanups qxl: - fix cursor notify port hisilicon: - 128-byte stride alignment fix sun4i: - improved format handling" * tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm: (1401 commits) drm/amd/display: Fix potential integer wraparound resulting in a hang drm/amd/display: drop cursor position check in atomic test drm/amdgpu: fix device attribute node create failed with multi gpu drm/nouveau: use correct conflicting framebuffer API drm/vblank: Fix -Wformat compile warnings on some arches drm/amdgpu: Sync with VM root BO when switching VM to CPU update mode drm/amd/display: Handle GPU reset for DC block drm/amdgpu: add apu flags (v2) drm/amd/powerpay: Disable gfxoff when setting manual mode on picasso and raven drm/amdgpu: fix pm sysfs node handling (v2) drm/amdgpu: move gpu_info parsing after common early init drm/amdgpu: move discovery gfx config fetching drm/nouveau/dispnv50: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/debugfs: fix runtime pm imbalance on error drm/nouveau/nouveau/hmm: fix migrate zero page to GPU drm/nouveau/nouveau/hmm: fix nouveau_dmem_chunk allocations drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST drm/nouveau/kms/nv50-: Move 8BPC limit for MST into nv50_mstc_get_modes() ...

Merge tag 'drm-intel-next-2020-05-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

2020-05-20T03:36:45Z

UAPI Changes: - drm/i915: Show per-engine default property values in sysfs By providing the default values configured into the kernel via sysfs, it is much more convenient for userspace to restore those sane defaults, or at least know what are considered good baseline. This is useful, for example, to cleanup after any failed userspace prior to commencing new jobs. Cross-subsystem Changes: - video/hdmi: Add Unpack only function for DRM infoframe - Includes pull request gvt-next-2020-05-12 Driver Changes: - Restore Cherryview back to full-ppgtt (Chris, Mika) - Document locking guidelines for i915 (Chris, Daniel, Joonas) - Fix GitLab #1746: Handle idling during i915_gem_evict_something busy loops (Chris) - Display WA #1105: Require linear fb stride to be multiple of 512 bytes on gen9/glk (Ville) - Add Wa_14010685332 for ICP/ICL (Matt R) - Restrict w/a 1607087056 for EHL/JSL (Swathi) - Fix interrupt handling for DP AUX transactions on Tigerlake (Imre) - Revert "drm/i915/tgl: Include ro parts of l3 to invalidate" (Mika) - Fix HDC pipeline flush hardware bit on Gen12 (Mika) - Flush L3 when flushing render on Gen12 (Mika) - Invalidate aux table entries forcibly between BB on Gen12 (Mika) - Add aux table invalidate for all engines on Gen12 (Mika) - Force pte cacheline to main memory Gen8+ (Mika) - Add and enable TGL+ SAGV support (Stanislav) - Implement vm_ops->access on i915 mmaps for GDB (Chris, Kristian) - Replace zero-length array with flexible-array (Gustavo) - Improve batch buffer pool effectiveness to mitigate soft-rc6 hit (Chris) - Remove wait priority boosting (Chris) - Keep driver module referenced when PMU is active (Chris) - Sanitize RPS interrupts upon resume (Chris) - Extend pcode read timeout to 20 ms (Chris) - Wait for ACT sent before enabling MST pipe (Ville) - Extend support to async relocations to SNB (Chris) - Remove CNL pre-prod workarounds (Ville) - Don't enable WaIncreaseLatencyIPCEnabled when IPC is disabled (Sultan) - Record the active CCID from before reset (Chris) - Mark concurrent submissions with a weak-dependency (Chris) - Peel dma-fence-chains for await to allow engine-to-engine sync (Lionel) - Prevent using semaphores to chain up to external fences (Chris) - Fix GLK watermark calculations (Ville) - Emit await(batch) before MI_BB_START (Chris) - Reset execlists registers before HWSP (Chris) - Drop no-semaphore boosting in favor of fast timeslicing (Chris) - Fix enabled infoframe states of lspcon (Gwan-gyeong) - Program DP SDPs on pipe updates (Gwan-gyeong) - Stop sending DP SDPs on ddi disable (Gwan-gyeong) - Store CS timestamp frequency in Hz (Ville) - Remove unused HAS_FWTABLE macro (Pascal) - Use batchbuffer chaining for relocations to save ring space (Chris) - Try different engines for relocs if MI ops not supported (Chris, Tvrtko) - Lazily acquire the device wakeref for freeing objects (Chris) - Streamline display code arithmetics around rounding etc. (Ville) - Use bw state for per crtc SAGV evaluation (Stanislav) - Track active_pipes in bw_state (Stanislav) - Nuke mode.vrefresh usage (Ville) - Warn if the FBC is still writing to stolen on removal (Chris) - Added new PCode commands prepping for QGV rescricting (Stansilav) - Stop holding onto the pinned_default_state (Chris) - Propagate error from completed fences (Chris) - Ignore submit-fences on the same timeline (Chris) - Pull waiting on an external dma-fence into its routine (Chris) - Replace the hardcoded I915_FENCE_TIMEOUT with Kconfig (Chris) - Mark up the racy read of execlists->context_tag (Chris) - Tidy up the return handling for completed dma-fences (Chris) - Introduce skl_plane_wm_level accessor (Stanislav) - Extract SKL SAGV checking (Stanislav) - Make active_pipes check skl specific (Stanislav) - Suspend tasklets before resume sanitization (Chris) - Remove redundant exec_fence (Chris) - Mark the addition of the initial-breadcrumb in the request (Chris) - Transfer old virtual breadcrumbs to irq_worker (Chris) - Read the DP SDPs from the video DIP (Gwan-gyeong) - Program DP SDPs with computed configs (Gwan-gyeong) - Add state readout for DP VSC and DP HDR Metadata Infoframe SDP (Gwan-gyeong) - Add compute routine for DP PSR VSC SDP (Gwan-gyeong) - Use new DP VSC SDP compute routine on PSR (Gwan-gyeong) - Restrict qgv points which don't have enough bandwidth. (Stanislav) - Nuke pointless div by 64bit (Ville) - Static checker code fixes (Nathan, Mika, Chris) - Add logging function for DP VSC SDP (Gwan-gyeong) - Include HDMI DRM infoframe, DP HDR metadata and DP VSC SDP in the crtc state dump (Gwan-gyeong) - Make timeslicing explicit engine property (Chris, Tvrtko) - Selftest and debugging improvements (Chris) - Align variable names with BSpec (Ville) - Tidy up gen8+ breadcrumb emission code (Chris) - Turn intel_digital_port_connected() in a vfunc (Ville) - Use stashed away hpd isr bits in intel_digital_port_connected() (Ville) - Extract i915_cs_timestamp_{ns_to_ticks,tick_to_ns}() (Ville) Signed-off-by: Dave Airlie From: Joonas Lahtinen Link: https://patchwork.freedesktop.org/patch/msgid/20200515160703.GA19043@jlahtine-desk.ger.corp.intel.com

drm: Add logging function for DP VSC SDP

2020-05-14T10:53:39Z

When receiving video it is very useful to be able to log DP VSC SDP. This greatly simplifies debugging. v2: Minor style fix v3: Move logging functions to drm core [Jani N] v5: Rebased v10: Rebased Signed-off-by: Gwan-gyeong Mun Reviewed-by: Uma Shankar Acked-by: Daniel Vetter Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20200514060732.3378396-4-gwan-gyeong.mun@intel.com

drm: fix trivial field description cut-and-paste error

2020-05-11T17:48:53Z

As reported by Amarnath Baliyase, the drm_mode_status enumeration documentation describes MODE_V_ILLEGAL as "mode has illegal horizontal timings". But that's just a cut-and-paste error from the previous line. The "V" stands for vertical, of course. I'm just fixing this directly rather than bothering with going through the proper channels. Less work for everybody. Reported-by: Amarnath Baliyase Signed-off-by: Linus Torvalds

Merge tag 'drm-misc-next-2020-05-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2020-05-08T05:17:08Z

drm-misc-next for 5.8: UAPI Changes: Cross-subsystem Changes: * MAINTAINERS: restore alphabetical order; update cirrus driver * Dcomuentation: document visionix, chronteli, ite vendor prefices; update documentation for Chrontel CH7033, IT6505, IVO, BOE, Panasonic, Chunghwa, AUO bindings; convert dw_mipi_dsi.txt to YAML; remove todo item for drm_display_mode.hsync removal; Core Changes: * drm: add devm_drm_dev_alloc() for managed allocations of drm_device; use DRM_MODESET_LOCK_ALL_*() in mode-object code; remove drm_display_mode.hsync; small cleanups of unused variables, compiler warnings and static functions * drm/client: dual-lincensing: GPL-2.0 or MIT * drm/mm: optimize tree searches in rb_hole_addr() Driver Changes: * drm/{many}: use devm_drm_dev_alloc(); don't use drm_device.dev_private * drm/ast: don't double-assign to drm_crtc_funcs.set_config; drop drm_connector_register() * drm/bochs: drop drm_connector_register() * drm/bridge: add support for Chrontel ch7033; fix stack usage with old gccs; return error pointer in drm_panel_bridge_add() * drm/cirrus: Move to tiny * drm/dp_mst: don't use 2nd sideband tx slot; revert "Remove single tx msg restriction" * drm/lima: support runtime PM; * drm/meson: limit modes wrt chipset * drm/panel: add support for Visionox rm69299; fix clock on boe-tv101wum-n16; fix panel type for AUO G101EVN10; add support for Ivo M133NFW4 R0; add support for BOE NV133FHM-N61; add support for AUO G121EAN01.4, G156XTN01.0, G190EAN01 * drm/pl111: improve vexpress init; fix module auto-loading * drm/stm: read number of endpoints from device tree * drm/vboxvideo: use managed PCI functions; drop DRM_MTRR_WC * drm/vkms: fix use-after-free in vkms_gem_create(); enable cursor support by default * fbdev: use boolean values in several drivers * fbdev/controlfb: fix COMPILE_TEST * fbdev/w100fb: fix double-free bug Signed-off-by: Dave Airlie From: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20200507072503.GA10979@linux-uq9g

drm/mm: optimize rb_hole_addr rbtree search

2020-05-05T11:39:38Z

Userspace can severely fragment rb_hole_addr rbtree by manipulating alignment while allocating buffers. Fragmented rb_hole_addr rbtree would result in large delays while allocating buffer object for a userspace application. It takes long time to find suitable hole because if we fail to find a suitable hole in the first attempt then we look for neighbouring nodes using rb_prev()/rb_next(). Traversing rbtree using rb_prev()/rb_next() can take really long time if the tree is fragmented. This patch improves searches in fragmented rb_hole_addr rbtree by modifying it to an augmented rbtree which will store an extra field in drm_mm_node, subtree_max_hole. Each drm_mm_node now stores maximum hole size for its subtree in drm_mm_node->subtree_max_hole. Using drm_mm_node->subtree_max_hole, it is possible to eliminate a complete subtree if that subtree is unable to serve a request hence reducing number of rb_prev()/rb_next() used. With this patch applied, 1 million bo allocs on amdgpu took ~8 sec, compared to 50k bo allocs which took 28 sec without it. partial test code: int test_fragmentation(void) { int i = 0; uint32_t minor_version; uint32_t major_version; struct amdgpu_bo_alloc_request request = {}; amdgpu_bo_handle vram_handle[MAX_ALLOC] = {}; amdgpu_device_handle device_handle; request.alloc_size = 4096; request.phys_alignment = 8192; request.preferred_heap = AMDGPU_GEM_DOMAIN_VRAM; int fd = open("/dev/dri/card0", O_RDWR | O_CLOEXEC); amdgpu_device_initialize(fd, &major_version, &minor_version, &device_handle); for (i = 0; i < MAX_ALLOC; i++) { amdgpu_bo_alloc(device_handle, &request, &vram_handle[i]); } for (i = 0; i < MAX_ALLOC; i++) amdgpu_bo_free(vram_handle[i]); return 0; } v2: Use RB_DECLARE_CALLBACKS_MAX to maintain subtree_max_hole v3: insert_hole_addr() should be static a function fix return value of next_hole_high_addr()/next_hole_low_addr() Reported-by: kbuild test robot v4: Fix commit message. Signed-off-by: Nirmoy Das Reviewed-by: Chris Wilson Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/364341/ Signed-off-by: Christian König