kernel.git/drivers/gpu/drm/i915/Makefile, branch linux-3.16.y

drm/i915: Add support for Generic MIPI panel driver

2014-06-05T06:52:32Z

This driver makes use of the generic panel information from the VBT. Panel information is classified into two - panel configuration and panel power sequence which is unique to each panel. The generic driver uses the panel configuration and sequence parsed from VBT block #52 and #53 v2: Address review comments by Jani - Move all of the things in driver c file from header - Make all functions static - Make use of video/mipi_display.c instead of redefining - Null checks during sequence execution v3: Address review comments by Damien - Rename the panel driver file as intel_dsi_panel_vbt.c - Fix style changes as suggested - Correct comments for lp->hs and hs->lp count calculations - General updating comments to have more clarity - using max() instead of ternary operator - Fix names (ui_num, ui_den) while using UI in calculations - compute max of lp_to_hs switch and hs_to_lp switch while computing hs_lp_switch_count Signed-off-by: Shobhit Kumar Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter

drm/i915: Introduce mapping of user pages into video memory (userptr) ioctl

2014-05-16T17:31:29Z

By exporting the ability to map user address and inserting PTEs representing their backing pages into the GTT, we can exploit UMA in order to utilize normal application data as a texture source or even as a render target (depending upon the capabilities of the chipset). This has a number of uses, with zero-copy downloads to the GPU and efficient readback making the intermixed streaming of CPU and GPU operations fairly efficient. This ability has many widespread implications from faster rendering of client-side software rasterisers (chromium), mitigation of stalls due to read back (firefox) and to faster pipelining of texture data (such as pixel buffer objects in GL or data blobs in CL). v2: Compile with CONFIG_MMU_NOTIFIER v3: We can sleep while performing invalidate-range, which we can utilise to drop our page references prior to the kernel manipulating the vma (for either discard or cloning) and so protect normal users. v4: Only run the invalidate notifier if the range intercepts the bo. v5: Prevent userspace from attempting to GTT mmap non-page aligned buffers v6: Recheck after reacquire mutex for lost mmu. v7: Fix implicit padding of ioctl struct by rounding to next 64bit boundary. v8: Fix rebasing error after forwarding porting the back port. v9: Limit the userptr to page aligned entries. We now expect userspace to handle all the offset-in-page adjustments itself. v10: Prevent vma from being copied across fork to avoid issues with cow. v11: Drop vma behaviour changes -- locking is nigh on impossible. Use a worker to load user pages to avoid lock inversions. v12: Use get_task_mm()/mmput() for correct refcounting of mm. v13: Use a worker to release the mmu_notifier to avoid lock inversion v14: Decouple mmu_notifier from struct_mutex using a custom mmu_notifer with its own locking and tree of objects for each mm/mmu_notifier. v15: Prevent overlapping userptr objects, and invalidate all objects within the mmu_notifier range v16: Fix a typo for iterating over multiple objects in the range and rearrange error path to destroy the mmu_notifier locklessly. Also close a race between invalidate_range and the get_pages_worker. v17: Close a race between get_pages_worker/invalidate_range and fresh allocations of the same userptr range - and notice that struct_mutex was presumed to be held when during creation it wasn't. v18: Sigh. Fix the refactor of st_set_pages() to allocate enough memory for the struct sg_table and to clear it before reporting an error. v19: Always error out on read-only userptr requests as we don't have the hardware infrastructure to support them at the moment. v20: Refuse to implement read-only support until we have the required infrastructure - but reserve the bit in flags for future use. v21: use_mm() is not required for get_user_pages(). It is only meant to be used to fix up the kernel thread's current->mm for use with copy_user(). v22: Use sg_alloc_table_from_pages for that chunky feeling v23: Export a function for sanity checking dma-buf rather than encode userptr details elsewhere, and clean up comments based on suggestions by Bradley. Signed-off-by: Chris Wilson Cc: Tvrtko Ursulin Cc: "Gong, Zhipeng" Cc: Akash Goel Cc: "Volkin, Bradley D" Reviewed-by: Tvrtko Ursulin Reviewed-by: Brad Volkin [danvet: Frob ioctl allocation to pick the next one - will cause a bit of fuss with create2 apparently, but such are the rules.] [danvet2: oops, forgot to git add after manual patch application] [danvet3: Appease sparse.] Signed-off-by: Daniel Vetter

drm/i915: add render state initialization

2014-05-14T17:16:13Z

HW guys say that it is not a cool idea to let device go into rc6 without proper 3d pipeline state. For each new uninitialized context, generate a valid null render state to be run on context creation. This patch introduces a skeleton with empty states. v2: - No need to vmap (Chris Wilson) - use .c files for state (Daniel Vetter) - no need to flush as i915_add_request does it - remove parameter for batch alloc size - don't wait for the init (Ben Widawsky) v3: - move to cpu/gpu (Chris Wilson) Tested-by: Kristen Carlson Accardi (v1) Tested-by: Oscar Mateo Reviewed-by: Damien Lespiau Signed-off-by: Mika Kuoppala Signed-off-by: Daniel Vetter

Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next

2014-03-18T08:43:56Z

Conflicts: drivers/gpu/drm/i915/Makefile Makefile cleanup in drm-intel-next conflicts with a build-fix to move intel_opregion under CONFIG_ACPI. Signed-off-by: Daniel Vetter

drm/i915: Go OCD on the Makefile

2014-03-07T21:37:00Z

Chris suggested to split things up a bit into the different parts of the driver and also sort it all correctly, with the hope that we're trying to organize things a bit better eventually. It should also help newcomers to orient themselves a bit better. v2: - Move intel_pm.c to the core - to make things perfect we should split out the modeset related pm features (psr/fbc) into a separate file. Maybe something Rodrigo can do once the PSR patches have settled. - Split the modesetting sections into core and encoders/outputs. intel_ddi.c is a bit funky since it has core hsw+ support and ddi output support. Whatever. v3: Failed to git add ... v4: Really go ocd, i.e. spelling fix in a comment from Jani. Cc: Chris Wilson Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter

drm/i915: Implement command buffer parsing logic

2014-03-07T21:37:00Z

The command parser scans batch buffers submitted via execbuffer ioctls before the driver submits them to hardware. At a high level, it looks for several things: 1) Commands which are explicitly defined as privileged or which should only be used by the kernel driver. The parser generally rejects such commands, with the provision that it may allow some from the drm master process. 2) Commands which access registers. To support correct/enhanced userspace functionality, particularly certain OpenGL extensions, the parser provides a whitelist of registers which userspace may safely access (for both normal and drm master processes). 3) Commands which access privileged memory (i.e. GGTT, HWS page, etc). The parser always rejects such commands. See the overview comment in the source for more details. This patch only implements the logic. Subsequent patches will build the tables that drive the parser. v2: Don't set the secure bit if the parser succeeds Fail harder during init Makefile cleanup Kerneldoc cleanup Clarify module param description Convert ints to bools in a few places Move client/subclient defs to i915_reg.h Remove the bits_count field OTC-Tracker: AXIA-4631 Change-Id: I50b98c71c6655893291c78a2d1b8954577b37a30 Signed-off-by: Brad Volkin Reviewed-by: Jani Nikula [danvet: Appease checkpatch.] Signed-off-by: Daniel Vetter

Merge tag 'drm-intel-next-2014-02-07' of ssh://git.freedesktop.org/git/drm-intel into drm-next

2014-02-27T04:36:01Z

- Yet more steps towards atomic modeset from Ville. - DP panel power sequencing improvements from Paulo. - irq code cleanups from Ville. - 5.4 GHz dp lane clock support for bdw/hsw from Todd. - Clock readout support for hsw/bdw (aka fastboot) from Jesse. - Make pipe underruns report at ERROR level (Ville). This is to check our improved watermarks code. - Full ppgtt support from Ben for gen7. - More fbc fixes and improvements from Ville all over the place, unfortunately not yet enabled by default on more platforms. - w/a cleanups from Ville. - HiZ stall optimization settings (Chia-I Wu). - Display register mmio offset refactor patch from Antti. - RPS improvements for corner-cases from Jeff McGee. * tag 'drm-intel-next-2014-02-07' of ssh://git.freedesktop.org/git/drm-intel: (166 commits) drm/i915: Update rps interrupt limits drm/i915: Restore rps/rc6 on reset drm/i915: Prevent recursion by retiring requests when the ring is full drm/i915: Generate a hang error code drm/i915: unify FLIP_DONE macro names drm/i915: vlv: s/spin_lock_irqsave/spin_lock/ in irq handler drm/i915: factor out valleyview_pipestat_irq_handler drm/i915: vlv: don't unmask IIR[DISPLAY_PIPE_A/B_VBLANK] interrupt drm/i915: Reorganize display pipe register accesses drm/i915: Treat using a purged buffer as a source of EFAULT drm/i915: Convert EFAULT into a silent SIGBUS drm/i915: release mutex in i915_gem_init()'s error path drm/i915: check for oom when allocating private_default_ctx drm/i915/vlv: WA to fix Voltage not getting dropped to Vmin when Gfx is power gated. drm/i915: Get rid of acthd based guilty batch search drm/i915: Use hangcheck score to find guilty context drm/i915: Drop WaDisablePSDDualDispatchEnable:ivb for IVB GT2 drm/i915: Fix IVB GT2 WaDisableDopClockGating and WaDisablePSDDualDispatchEnable drm/i915: Don't access snooped pages through the GTT (even for error capture) drm/i915: Only print information for filing bug reports once ... Conflicts: drivers/gpu/drm/i915/intel_dp.c

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2014-01-30T04:49:12Z

Pull drm updates from Dave Airlie: "Been a bit busy, first week of kids school, and waiting on other trees to go in before I could send this, so its a bit later than I'd normally like. Highlights: - core: timestamp fixes, lots of misc cleanups - new drivers: bochs virtual vga - vmwgfx: major overhaul for their nextgen virt gpu. - i915: runtime D3 on HSW, watermark fixes, power well work, fbc fixes, bdw is no longer prelim. - nouveau: gk110/208 acceleration, more pm groundwork, old overlay support - radeon: dpm rework and clockgating for CIK, pci config reset, big endian fixes - tegra: panel support and DSI support, build as module, prime. - armada, omap, gma500, rcar, exynos, mgag200, cirrus, ast: fixes - msm: hdmi support for mdp5" * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (595 commits) drm/nouveau: resume display if any later suspend bits fail drm/nouveau: fix lock unbalance in nouveau_crtc_page_flip drm/nouveau: implement hooks for needed for drm vblank timestamping support drm/nouveau/disp: add a method to fetch info needed by drm vblank timestamping drm/nv50: fill in crtc mode struct members from crtc_mode_fixup drm/radeon/dce8: workaround for atom BlankCrtc table drm/radeon/DCE4+: clear bios scratch dpms bit (v2) drm/radeon: set si_notify_smc_display_change properly drm/radeon: fix DAC interrupt handling on DCE5+ drm/radeon: clean up active vram sizing drm/radeon: skip async dma init on r6xx drm/radeon/runpm: don't runtime suspend non-PX cards drm/radeon: add ring to fence trace functions drm/radeon: add missing trace point drm/radeon: fix VMID use tracking drm: ast,cirrus,mgag200: use drm_can_sleep drm/gma500: Lock struct_mutex around cursor updates drm/i915: Fix the offset issue for the stolen GEM objects DRM: armada: fix missing DRM_KMS_FB_HELPER select drm/i915: Decouple GPU error reporting from ring initialisation ...

drm/i915: move module parameters into a struct, in a new file

2014-01-27T16:16:45Z

With 20+ module parameters, I think referring to them via a struct improves clarity over just having a bunch of globals. While at it, move the parameter initialization and definitions into a new file i915_params.c to reduce clutter in i915_drv.c. Apart from the ill-named i915_enable_rc6, i915_enable_fbc and i915_enable_ppgtt parameters, for which we lose the "i915_" prefix internally, the module parameters now look the same both on the kernel command line and in code. For example, "i915.modeset". The downsides of the change are losing static on a couple of variables and not having the initialization and module_param_named() right next to each other. On the other hand, all module parameters are now defined in one place at i915_params.c. Plus you can do this to find all module parameter references: $ git grep "i915\." -- drivers/gpu/drm/i915 v2: - move the definitions into a new file - s/i915_params/i915/ - make i915_try_reset i915.reset, for consistency Signed-off-by: Jani Nikula Signed-off-by: Daniel Vetter

drm/i915: only build i915_debugfs.c when CONFIG_DEBUG_FS is enabled

2013-12-16T15:53:32Z

The whole file is wrapped around in #if defined(CONFIG_DEBUG_FS) anyway, so skip the file at the build level already. Signed-off-by: Jani Nikula Signed-off-by: Daniel Vetter