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* drm/ttm: Introduce ttm_bo_get() and ttm_bo_put() for ref countingThomas Zimmermann2018-07-101-1/+24
| | | | | | | | | | | | | | | | The TTM buffer-object interface provides ttm_bo_reference() and ttm_bo_unref() for managing reference counts. Replacing them with ttm_bo_get() and ttm_bo_put() aligns the API with conventions used throughout the Linux kernel. The implementation of ttm_bo_unref() clears the supplied pointer to NULL. This leads to workarounds where the caller saves the pointer's value before de-referencing the BO. ttm_bo_put() does not clear the supplied pointer. Signed-off-by: Thomas Zimmermann <contact@tzimmermann.org> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: Export the ttm_k[un]map_atomic_prot API.Thomas Hellstrom2018-03-221-0/+4
| | | | | | | | It will be used by vmwgfx cpu blit. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Brian Paul <brianp@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
* drm/ttm: drop persistent_swap_storage from ttm_bo_init and coChristian König2018-02-261-15/+1
| | | | | | | | | Never used as parameter, the only driver actually using this is nouveau and there it is initialized after the BO is initialized. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: drop bo->globChristian König2018-02-261-1/+2
| | | | | | | | The pointer is available as bo->bdev->glob as well. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: add bit flag TTM_OPT_FLAG_FORCE_ALLOCRoger He2018-02-261-1/+3
| | | | | | | | | | | | | | | | | | | set TTM_OPT_FLAG_FORCE_ALLOC when we are servicing for page fault routine. for ttm_mem_global_reserve if in page fault routine, allow the gtt pages reservation always. because page fault routing already grabbed system memory and the allowance of this exception is harmless. Otherwise, it will trigger OOM killer. will be used later. v2: set the FORCE_ALLOC always v3: minor refine Signed-off-by: Roger He <Hongbo.He@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: use bit flag to replace allow_reserved_eviction in ttm_operation_ctxRoger He2018-02-261-2/+5
| | | | | | | | for saving memory and more bit flag can be used in future Signed-off-by: Roger He <Hongbo.He@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: remove ttm_bo_default_io_mem_pfnTan Xiaojun2018-01-101-11/+0
| | | | | | | | | | No one will use this function except ttm_bo_io_mem_pfn() now, so move the calculation of ttm_bo_default_io_mem_pfn() into ttm_bo_io_mem_pfn() and do some cleanup. Signed-off-by: Tan Xiaojun <tanxiaojun@huawei.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: enable swapout for reserved BOs during allocationRoger He2017-12-281-1/+2
| | | | | | | | | | | | | if the bo shares same reservation object then not lock it again at swapout time to make it possible to swap out. v2: refine the commmit message Reviewed-by: Thomas Hellström <thellstrom@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chuming Zhou <david1.zhou@amd.com> Signed-off-by: Roger He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: call ttm_bo_swapout directly when ttm shrinkRoger He2017-12-271-0/+1
| | | | | | | | remove the extra indirection because we have only one implementation anyway Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Roger He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: add allow_reserved_eviction and resv into ttm_operation_ctxRoger He2017-12-151-0/+4
| | | | | | | | | allow_reserved_eviction: Allow eviction of reserved BOs resv: Reservation object to allow reserved evictions with Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Roger He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: add number of bytes moved to the operation contextChristian König2017-12-061-0/+1
| | | | | | | | | | | | Add some statistics how many bytes we have moved. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de> Tested-by: Michel Dänzer <michel.daenzer@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: use an operation ctx for ttm_bo_init_reservedChristian König2017-12-061-3/+2
| | | | | | | | | | | | Instead of specifying if sleeping should be interruptible. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de> Tested-by: Michel Dänzer <michel.daenzer@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: add operation ctx to ttm_bo_validate v2Christian König2017-12-061-4/+16
| | | | | | | | | | | | | | Give moving a BO into place an operation context to work with. v2: rebased Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de> Tested-by: Michel Dänzer <michel.daenzer@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: remove cur_placementChristian König2017-12-061-1/+0
| | | | | | | | Not used any more. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: cleanup coding style in ttm_bo_api.hChristian König2017-12-061-77/+54
| | | | | | | | | Extern is the default for function declerations anyway and this solves a bunch of 80char per line issues. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: add io_mem_pfn callbackChristian König2017-04-041-0/+11
| | | | | | | | | This allows the driver to handle io_mem mappings on their own. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: add ttm_bo_init_reservedNicolai Hähnle2017-03-291-0/+54
| | | | | | | | | | | This variant of ttm_bo_init returns the validated buffer object with the reservation lock held when resv == NULL. This is convenient for callers that want to use the BO immediately, e.g. for initializing its contents. Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: fix the documentation of ttm_bo_initNicolai Hähnle2017-03-291-1/+5
| | | | | | | | | As the comment says: callers of ttm_bo_init cannot rely on having the only reference to the BO when the function returns successfully. Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* Merge tag 'drm-for-v4.11-less-shouty' of ↵Linus Torvalds2017-02-231-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~airlied/linux Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.11. Nothing too major, the tinydrm and mmu-less support should make writing smaller drivers easier for some of the simpler platforms, and there are a bunch of documentation updates. Intel grew displayport MST audio support which is hopefully useful to people, and FBC is on by default for GEN9+ (so people know where to look for regressions). AMDGPU has a lot of fixes that would like new firmware files installed for some GPUs. Other than that it's pretty scattered all over. I may have a follow up pull request as I know BenH has a bunch of AST rework and fixes and I'd like to get those in once they've been tested by AST, and I've got at least one pull request I'm just trying to get the author to fix up. Core: - drm_mm reworked - Connector list locking and iterators - Documentation updates - Format handling rework - MMU-less support for fbdev helpers - drm_crtc_from_index helper - Core CRC API - Remove drm_framebuffer_unregister_private - Debugfs cleanup - EDID/Infoframe fixes - Release callback - Tinydrm support (smaller drivers for simple hw) panel: - Add support for some new simple panels i915: - FBC by default for gen9+ - Shared dpll cleanups and docs - GEN8 powerdomain cleanup - DMC support on GLK - DP MST audio support - HuC loading support - GVT init ordering fixes - GVT IOMMU workaround fix amdgpu/radeon: - Power/clockgating improvements - Preliminary SR-IOV support - TTM buffer priority and eviction fixes - SI DPM quirks removed due to firmware fixes - Powerplay improvements - VCE/UVD powergating fixes - Cleanup SI GFX code to match CI/VI - Support for > 2 displays on 3/5 crtc asics - SI headless fixes nouveau: - Rework securre boot code in prep for GP10x secure boot - Channel recovery improvements - Initial power budget code - MMU rework preperation vmwgfx: - Bunch of fixes and cleanups exynos: - Runtime PM support for MIC driver - Cleanups to use atomic helpers - UHD Support for TM2/TM2E boards - Trigger mode fix for Rinato board etnaviv: - Shader performance fix - Command stream validator fixes - Command buffer suballocator rockchip: - CDN DisplayPort support - IOMMU support for arm64 platform imx-drm: - Fix i.MX5 TV encoder probing - Remove lower fb size limits msm: - Support for HW cursor on MDP5 devices - DSI encoder cleanup - GPU DT bindings cleanup sti: - stih410 cleanups - Create fbdev at binding - HQVDP fixes - Remove stih416 chip functionality - DVI/HDMI mode selection fixes - FPS statistic reporting omapdrm: - IRQ code cleanup dwi-hdmi bridge: - Cleanups and fixes adv-bridge: - Updates for nexus sii8520 bridge: - Add interlace mode support - Rework HDMI and lots of fixes qxl: - probing/teardown cleanups ZTE drm: - HDMI audio via SPDIF interface - Video Layer overlay plane support - Add TV encoder output device atmel-hlcdc: - Rework fbdev creation logic tegra: - OF node fix fsl-dcu: - Minor fixes mali-dp: - Assorted fixes sunxi: - Minor fix" [ This was the "fixed" pull, that still had build warnings due to people not even having build tested the result. I'm not a happy camper I've fixed the things I noticed up in this merge. - Linus ] * tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux: (1177 commits) lib/Kconfig: make PRIME_NUMBERS not user selectable drm/tinydrm: helpers: Properly fix backlight dependency drm/tinydrm: mipi-dbi: Fix field width specifier warning drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files drm/amd/powerplay: fix PSI feature on Polars12 drm/amdgpu: refuse to reserve io mem for split VRAM buffers drm/ttm: fix use-after-free races in vm fault handling drm/tinydrm: Add support for Multi-Inno MI0283QT display dt-bindings: Add Multi-Inno MI0283QT binding dt-bindings: display/panel: Add common rotation property of: Add vendor prefix for Multi-Inno drm/tinydrm: Add MIPI DBI support drm/tinydrm: Add helper functions drm: Add DRM support for tiny LCD displays drm/amd/amdgpu: post card if there is real hw resetting performed drm/nouveau/tmr: provide backtrace when a timeout is hit drm/nouveau/pci/g92: Fix rearm drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios drm/nouveau/hwmon: expose power_max and power_crit ..
| * drm/ttm: add BO priorities for the LRUsChristian König2017-01-271-0/+2
| | | | | | | | | | | | | | | | | | | | | | This way the driver can specify a priority for a BO which has the effect that a BO is only evicted when all other BOs with a lower priority are evicted first. Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Roger.He <Hongbo.He@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | locking/atomic, kref: Kill kref_sub()Peter Zijlstra2017-01-141-14/+1
|/ | | | | | | | | | | | | | By general sentiment kref_sub() is a bad interface, make it go away. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Merge tag 'topic/drm-misc-2016-10-27' of ↵Dave Airlie2016-10-281-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/git/drm-intel into drm-next Pull request already again to get the s/fence/dma_fence/ stuff in and allow everyone to resync. Otherwise really just misc stuff all over, and a new bridge driver. * tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel: drm/bridge: fix platform_no_drv_owner.cocci warnings drm/bridge: fix semicolon.cocci warnings drm: Print some debug/error info during DP dual mode detect drm: mark drm_of_component_match_add dummy inline drm/bridge: add Silicon Image SiI8620 driver dt-bindings: add Silicon Image SiI8620 bridge bindings video: add header file for Mobile High-Definition Link (MHL) interface drm: convert DT component matching to component_match_add_release() dma-buf: Rename struct fence to dma_fence dma-buf/fence: add an lockdep_assert_held() drm/dp: Factor out helper to distinguish between branch and sink devices drm/edid: Only print the bad edid when aborting drm/msm: add missing header dependencies drm/msm/adreno: move function declarations to header file drm/i2c/tda998x: mark symbol static where possible doc: add missing docbook parameter for fence-array drm: RIP mode_config->rotation_property drm/msm/mdp5: Advertize 180 degree rotation drm/msm/mdp5: Use per-plane rotation property
| * dma-buf: Rename struct fence to dma_fenceChris Wilson2016-10-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I plan to usurp the short name of struct fence for a core kernel struct, and so I need to rename the specialised fence/timeline for DMA operations to make room. A consensus was reached in https://lists.freedesktop.org/archives/dri-devel/2016-July/113083.html that making clear this fence applies to DMA operations was a good thing. Since then the patch has grown a bit as usage increases, so hopefully it remains a good thing! (v2...: rebase, rerun spatch) v3: Compile on msm, spotted a manual fixup that I broke. v4: Try again for msm, sorry Daniel coccinelle script: @@ @@ - struct fence + struct dma_fence @@ @@ - struct fence_ops + struct dma_fence_ops @@ @@ - struct fence_cb + struct dma_fence_cb @@ @@ - struct fence_array + struct dma_fence_array @@ @@ - enum fence_flag_bits + enum dma_fence_flag_bits @@ @@ ( - fence_init + dma_fence_init | - fence_release + dma_fence_release | - fence_free + dma_fence_free | - fence_get + dma_fence_get | - fence_get_rcu + dma_fence_get_rcu | - fence_put + dma_fence_put | - fence_signal + dma_fence_signal | - fence_signal_locked + dma_fence_signal_locked | - fence_default_wait + dma_fence_default_wait | - fence_add_callback + dma_fence_add_callback | - fence_remove_callback + dma_fence_remove_callback | - fence_enable_sw_signaling + dma_fence_enable_sw_signaling | - fence_is_signaled_locked + dma_fence_is_signaled_locked | - fence_is_signaled + dma_fence_is_signaled | - fence_is_later + dma_fence_is_later | - fence_later + dma_fence_later | - fence_wait_timeout + dma_fence_wait_timeout | - fence_wait_any_timeout + dma_fence_wait_any_timeout | - fence_wait + dma_fence_wait | - fence_context_alloc + dma_fence_context_alloc | - fence_array_create + dma_fence_array_create | - to_fence_array + to_dma_fence_array | - fence_is_array + dma_fence_is_array | - trace_fence_emit + trace_dma_fence_emit | - FENCE_TRACE + DMA_FENCE_TRACE | - FENCE_WARN + DMA_FENCE_WARN | - FENCE_ERR + DMA_FENCE_ERR ) ( ... ) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161025120045.28839-1-chris@chris-wilson.co.uk
* | drm/ttm: make eviction decision a driver callback v2Christian König2016-10-251-0/+13
|/ | | | | | | | | | | | This way the driver can decide if it is valuable to evict a BO or not. The current implementation is added as default to all existing drivers. v2: fix some typos found during internal testing Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: move placement structures into ttm_placement.hChristian König2016-09-141-31/+1
| | | | | | | | | Makes more sense to keep that together. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* Backmerge tag 'v4.7' into drm-nextDave Airlie2016-07-261-0/+14
|\ | | | | | | | | | | Linux 4.7 As requested by Daniel Vetter as the conflicts were getting messy.
| * drm/ttm: Make ttm_bo_mem_compat availableSinclair Yeh2016-07-011-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | There are cases where it is desired to see if a proposed placement is compatible with a buffer object before calling ttm_bo_validate(). Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Cc: <stable@vger.kernel.org> --- This is the first of a 3-patch series to fix a black screen issue observed on Ubuntu 16.04 server.
* | drm/ttm: remove TTM_BO_PRIV_FLAG_MOVINGChristian König2016-07-071-2/+2
|/ | | | | | | | | | | Instead of using the flag just remember the fence of the last move operation. This avoids waiting for command submissions pipelined after the move, but before accessing the BO with the CPU again. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: remove lazy parameter from ttm_bo_waitChristian König2016-05-041-1/+1
| | | | | | | | | Not used any more. Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: use phys_addr_t for ttm_bus_placementAlex Deucher2016-04-041-1/+1
| | | | | | | | | | | | | | | | Fixes ttm on platforms like PPC460 where the CPU is in 32-bit mode, but the physical addresses are >32 bits. Extracted from a patch by Hans Verkuil. Tested-by: Julian Margetson <runaway@candw.ms> Acked-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Julian Margetson <runaway@candw.ms> Cc: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: add ttm_bo_move_to_lru_tail function v2Christian König2016-01-131-0/+10
| | | | | | | | | | | This allows the drivers to move a BO to the end of the LRU without removing and adding it again. v2: Make it more robust, handle pinned and swapable BOs as well. Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: device address space != CPU address spaceAlex Deucher2015-03-051-1/+1
| | | | | | | | | | | | | | | | | | | | | We need to store device offsets in 64 bit as the device address space may be larger than the CPU's. Fixes GPU init failures on radeons with 4GB or more of vram on 32 bit kernels. We put vram at the start of the GPU's address space so the gart aperture starts at 4 GB causing all GPU addresses in the gart aperture to get truncated. bug: https://bugs.freedesktop.org/show_bug.cgi?id=89072 [airlied: fix warning on nouveau build] Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: thellstrom@vmware.com Acked-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: add reservation_object as argument to ttm_bo_initMaarten Lankhorst2014-09-301-0/+2
| | | | | | This allows importing reservation objects from dma-bufs. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
* drm/ttm: flip the switch, and convert to dma_fenceMaarten Lankhorst2014-09-021-2/+0
| | | | Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
* drm/ttm: kill fence_lockMaarten Lankhorst2014-09-011-4/+1
| | | | | | | | No users are left, kill it off! :D Conversion to the reservation api is next on the list, after that the functionality can be restored with rcu. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
* drm/ttm: move fpfn and lpfn into each placement v2Christian König2014-08-271-22/+18
| | | | | | | | | This allows us to more fine grained specify where to place the buffer object. v2: rebased on drm-next, add bochs changes as well Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
* drm/ttm: fix kerneldoc of ttm_bo_createAlexandre Courbot2014-05-261-3/+2
| | | | | | | | | The kerneldoc header of ttm_bo_create() was referring to another (nonexisting) function and had a few obsolete or incorrect arguments. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: Remove set_need_resched from the ttm fault handlerThomas Hellstrom2013-11-201-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | Addresses "[BUG] completely bonkers use of set_need_resched + VM_FAULT_NOPAGE". In the first occurence it was used to try to be nice while releasing the mmap_sem and retrying the fault to work around a locking inversion. The second occurence was never used. There has been some discussion whether we should change the locking order to mmap_sem -> bo_reserve. This patch doesn't address that issue, and leaves that locking order undefined. The solution that we release the mmap_sem if tryreserve fails and wait for the buffer to become unreserved is something we want in any case, and follows how the core vm system waits for pages to be come unlocked while releasing the mmap_sem. The code also outlines what needs to be changed if we want to establish the locking order as mmap_sem -> bo::reserve. One slight issue that remains with this code is that the fault handler might be prone to starvation if another thread countinously reserves the buffer. IMO that usage pattern is highly unlikely. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
* drm/ttm: convert to unified vma offset managerDavid Herrmann2013-07-251-12/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the new vma-manager infrastructure. This doesn't change any implementation details as the vma-offset-manager is nearly copied 1-to-1 from TTM. The vm_lock is moved into the offset manager so we can drop it from TTM. During lookup, we use the vma locking helpers to take a reference to the found object. In all other scenarios, locking stays the same as before. We always guarantee that drm_vma_offset_remove() is called only during destruction. Hence, helpers like drm_vma_node_offset_addr() are always safe as long as the node has a valid offset. This also drops the addr_space_offset member as it is a copy of vm_start in vma_node objects. Use the accessor functions instead. v4: - remove vm_lock - use drm_vma_offset_lock_lookup() to protect lookup (instead of vm_lock) Cc: Dave Airlie <airlied@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com> Cc: Martin Peres <martin.peres@labri.fr> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@gmail.com>
* drm/ttm: get rid of ttm_bo_is_reservedMaarten Lankhorst2013-06-281-14/+0
| | | | | Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: convert to the reservation apiMaarten Lankhorst2013-06-281-19/+6
| | | | | | | | | | | | | | | Now that the code is compatible in semantics, flip the switch. Use ww_mutex instead of the homegrown implementation. ww_mutex uses -EDEADLK to signal that the caller has to back off, and -EALREADY to indicate this buffer is already held by the caller. ttm used -EAGAIN and -EDEADLK for those, respectively. So some changes were needed to handle this correctly. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: make ttm reservation calls behave like reservation callsMaarten Lankhorst2013-06-281-1/+1
| | | | | | | | | | | This commit converts the source of the val_seq counter to the ww_mutex api. The reservation objects are converted later, because there is still a lockdep splat in nouveau that has to resolved first. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: remove no_wait_reserve, v3Maarten Lankhorst2012-12-101-2/+1
| | | | | | | | | | | | | | | | | | | | | | All items on the lru list are always reservable, so this is a stupid thing to keep. Not only that, it is used in a way which would guarantee deadlocks if it were ever to be set to block on reserve. This is a lot of churn, but mostly because of the removal of the argument which can be nested arbitrarily deeply in many places. No change of code in this patch except removal of the no_wait_reserve argument, the previous patch removed the use of no_wait_reserve. v2: - Warn if -EBUSY is returned on reservation, all objects on the list should be reservable. Adjusted patch slightly due to conflicts. v3: - Focus on no_wait_reserve removal only. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: alter cpu_writers to return -EBUSY in ttm_execbuf_util reservationsMaarten Lankhorst2012-11-201-2/+3
| | | | | | | | | This is similar to other platforms that don't allow command submission to buffers locked on the cpu. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: remove sync_obj_arg memberMaarten Lankhorst2012-11-201-2/+0
| | | | | | | | vmwgfx was its only user and always sets it to the same.. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-By: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: remove ttm_buffer_object->buffer_startMarcin Slusarz2012-11-201-9/+0
| | | | | | | | All drivers set it to 0 and nothing uses it. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: add ttm_bo_is_reservedMaarten Lankhorst2012-11-071-0/+14
| | | | | | Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel ↵David Howells2012-10-021-1/+1
| | | | | | | | | | | | system headers Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
* ttm: add prime sharing support to TTM (v2)Dave Airlie2012-05-231-1/+8
| | | | | | | | | | | | | This adds the ability for ttm common code to take an SG table and use it as the backing for a slave TTM object. The drivers can then populate their GTT tables using the SG object. v2: make sure to setup VM for sg bos as well. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: simplify memory accounting for ttm user v2Jerome Glisse2011-12-061-1/+18
| | | | | | | | | | | | | Provide helper function to compute the kernel memory size needed for each buffer object. Move all the accounting inside ttm, simplifying driver and avoiding code duplication accross them. v2 fix accounting of ghost object, one would have thought that i would have run into the issue since a longtime but it seems ghost object are rare when you have plenty of vram ;) Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
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