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2021-11-30drm: Declare hashtable as legacyThomas Zimmermann1-1/+14
The DRM hashtable code is only used by internal functions for legacy UMS drivers. Move the implementation behind CONFIG_DRM_LEGACY and the declarations into legacy header files. Unexport the symbols. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211129094841.22499-4-tzimmermann@suse.de
2021-08-10drm: IRQ midlayer is now legacyThomas Zimmermann1-0/+3
Hide the DRM midlayer behind CONFIG_DRM_LEGACY, make functions use the prefix drm_legacy_, and move declarations to drm_legacy.h. In struct drm_device, move the fields irq and irq_enabled behind CONFIG_DRM_LEGACY. All callers have been updated. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210803090704.32152-15-tzimmermann@suse.de
2021-05-10drm: Mark AGP implementation and ioctls as legacyThomas Zimmermann1-0/+82
Only UMs drivers use DRM's core AGP code and ioctls. Mark the icotls as legacy. Add the _legacy_ infix to all AGP functions. Move the declarations to the public and internal legacy header files. The agp field in struct drm_device is now located in the structure's legacy section. Adapt drivers to the changes. AGP code now depends on CONFIG_DRM_LEGACY. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210507185709.22797-5-tzimmermann@suse.de
2021-04-26drm: remove legacy drm_pci_alloc/free abstractionJoseph Kogut1-4/+0
The drm_pci_alloc/free abstraction of the dma-api is no longer required, remove it. Signed-off-by: Joseph Kogut <joseph.kogut@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210423020248.3427369-2-joseph.kogut@gmail.com
2021-01-05drm: Use a const drm_driver for legacy PCI devicesLaurent Pinchart1-4/+6
Now that the legacy PCI support code doesn't need to write to the drm_driver structure, it can be treated as const through the whole DRM core, unconditionally. This allows declaring the structure as const in all drivers, removing one possible attack vector. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2020-04-22Merge tag 'drm-misc-next-2020-04-14' of ↵Dave Airlie1-0/+15
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 5.8: UAPI Changes: - drm: error out with EBUSY when device has existing master - drm: rework SET_MASTER and DROP_MASTER perm handling Cross-subsystem Changes: - mm: export two symbols from slub/slob - fbdev: savage: fix -Wextra build warning - video: omap2: Use scnprintf() for avoiding potential buffer overflow Core Changes: - Remove drm_pci.h - drm_pci_{alloc/free)() are now legacy - Introduce managed DRM resourcesA - Allow drivers to subclass struct drm_framebuffer - Introduce struct drm_afbc_framebuffer and helpers - fbdev: remove return value from generic fbdev setup - Introduce simple-encoder helper - vram-helpers: set fence on plane - dp_mst: ACT timeout improvements - dp_mst: Remove drm_dp_mst_has_audio() - TTM: ttm_trace_dma_{map/unmap}() cleanups - dma-buf: add flag for PCIP2P support - EDID: Various improvements - Encoder: cleanup semantics of possible_clones and possible_crtcs - VBLANK documentation updates - Writeback documentation updates Driver Changes: - Convert several drivers to i2c_new_client_device() - Drop explicit drm_mode_config_cleanup() calls from drivers - Auto-release device structures with drmm_add_final_kfree() - Init bfdev console after registering DRM device - Make various .debugfs functions return 0 unconditionally; ignore errors - video: Use scnprintf() to avoid buffer overflows - Convert drivers to simple encoders - drm/amdgpu: note that we can handle peer2peer DMA-buf - drm/amdgpu: add support for exporting VRAM using DMA-buf v3 - drm/kirin: Revert change to register connectors - drm/lima: Add optional devfreq and cooling device support - drm/lima: Various improvements wrt. task handling - drm/panel: nt39016: Support multiple modes and 50Hz - drm/panel: Support Leadtek LTK050H3146W - drm/rockchip: Add support for afbc - drm/virtio: Various cleanups - drm/hisilicon/hibmc: Enforce 128-byte stride alignment - drm/qxl: Fix notify port address of cursor ring buffer - drm/sun4i: Improvements to format handling - drm/bridge: dw-hdmi: Various improvements Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20200414090738.GA16827@linux-uq9g
2020-04-09drm/legacy: Fix type for drm_local_map.offsetChris Wilson1-1/+1
drm_local_map.offset is not only used for resource_size_t but also dma_addr_t which may be of different sizes. Reported-by: Nathan Chancellor <natechancellor@gmail.com> Fixes: 8e4ff9b56957 ("drm: Remove the dma_alloc_coherent wrapper for internal usage") Tested-by: Nathan Chancellor <natechancellor@gmail.com> # build Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@gmail.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200402215926.30714-1-chris@chris-wilson.co.uk
2020-04-03drm/pci: Move drm_pci_alloc/free under CONFIG_DRM_LEGACYDaniel Vetter1-0/+15
All other users have been removed, yay! Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> [fix checkpatch warning] Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200403110610.2344842-1-daniel.vetter@ffwll.ch
2020-02-04drm: Remove the dma_alloc_coherent wrapper for internal usageChris Wilson1-6/+0
Internally for "consistent" maps, we create a temporary struct drm_dma_handle in order to use our own dma_alloc_coherent wrapper then destroy the temporary wrap. Simplify our logic by removing the temporary wrapper! Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200202171635.4039044-2-chris@chris-wilson.co.uk
2019-12-05drm/pci: Hide legacy PCI functions from non-legacy codeThomas Zimmermann1-1/+28
Declarations of drm_legacy_pci_{init,exit}() are being moved to drm_legacy.h. CONFIG_DRM_LEGACY protects the implementation. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191203100406.9674-3-tzimmermann@suse.de
2019-05-27drm: make drm/drm_legacy.h self-containedSam Ravnborg1-6/+6
Do not require users of include/drm/drm_legacy.h to include other files just to let it build. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Daniel Vetter <daniel@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Link: https://patchwork.freedesktop.org/patch/msgid/20190526173535.32701-3-sam@ravnborg.org
2019-04-24drm/legacy: move drm_legacy_master_rmmaps to non-driver legacy header.Dave Airlie1-2/+0
This isn't used by drivers, and won't be in the future. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2019-01-02drm: un-inline drm_legacy_findmap()Jani Nikula1-10/+4
Un-inline drm_legacy_findmap() to not depend on struct drm_device definition within drm_legacy.h, so that a forward declaration suffices. Also include drm_hashtab.h in drm_legacy.h to make it more self-contained. Make it easier to drop drmP.h includes. v2: avoid including drm_device.h by un-inlining (Daniel) [Updated commit message per Laurent's review while applying.] Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181228130446.22141-1-jani.nikula@intel.com
2018-03-28drm: prefer inline over __inline__Jani Nikula1-2/+2
Remove last users of __inline__. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180327204722.31246-1-jani.nikula@intel.com
2016-06-21drm: document drm_auth.cDaniel Vetter1-0/+2
Also extract drm_auth.h for nicer grouping. v2: Nuke the other comments since they don't really explain a lot, and within the drm core we generally only document functions exported to drivers: The main audience for these docs are driver writers. v3: Limit the exposure of drm_master internals by only including drm_auth.h where it is neede (Chris). v4: Spelling polish (Emil). Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-04-27drm: Hide master MAP cleanup in drm_bufs.cDaniel Vetter1-1/+3
And again make sure it's a no-op for modern drivers. Another case of dev->struct_mutex gone for modern drivers! Note that the entirety of the legacy addmap interface is now protected by DRIVER_MODESET. Note that just auditing kernel code is not enough, since userspace loves to set up legacy maps on it's own for various things - with ums userspace and kernel space share control over resources. v2: Also add a DRIVER_* check like for all other maps functions to really short-circuit the code. And give drm_legacy_rmmap used by the dev unregister code the same treatment. v3: - remove redundant return; (Alex, Chris) - don't special case nouveau with DRIVER_KMS_LEGACY_CONTEXT. v4: Again special case nouveau. The problem is not directly in the ddx, but that it calls dri1 functions from the X server. And those do call drmAddMap. Fixed only in commit b1a630b48210d6a3c44994fce1b73273000ace5c Author: Dave Airlie <airlied@redhat.com> Date: Wed Nov 7 14:45:14 2012 +1000 nouveau: drop DRI1 device open interface. Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1461741618-12679-1-git-send-email-daniel.vetter@ffwll.ch
2014-09-24drm: move drm_mmap to <drm/drm_legacy.h>Daniel Vetter1-0/+1
Now that we've removed the copypasted users in gem/ttm we can relegate the legacy buffer mapping support to where it belongs. Also give it the proper drm_legacy_ prefix. While at it statify drm_mmap_locked, somehow I've missed that in my previous header rework. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-12drm: Move LOCK_TEST_WITH_RETURN to <drm/drm_legacy.h>Daniel Vetter1-0/+17
Unfortunately we can't move struct drm_lock_data easily since it's embedded into struct drm_master. And figuring out where exactly this struct should be allocated isn't that simple ... Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-12drm: Move legacy buffer structures to <drm/drm_legacy.h>Daniel Vetter1-0/+109
A few odd cases: - mgag200 someho had a totally unused drm_dma_handle_t. Remove it. - i915 still uses the legacy pci dma alloc api, so grows an include. Everything else fairly standard. v2: Include "drm_legacy.h" in drm.ko source files for consistency. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-12drm: Move drm_memory.c map support declarations to <drm/drm_legacy.h>Daniel Vetter1-0/+15
And replace the drm_core_ prefix with drm_legacy_ since really, this isn't core stuff. Also drop drm_core_dropmap since it's unused. v2: Fix up i810.ko fully which somehow slipped through. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-12drm: Move __drm_pci_free to drm_legacy.hDaniel Vetter1-0/+3
Also sprinkle the customary legacy_ prefix. Unfortunately we can't move the other functions since i915 is still using them. Shame on me for that one :( v2: Fix patch subject as spotted by David Herrmann. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-12drm: Create drm legacy driver headerDaniel Vetter1-0/+58
And move a few legayc functions to start things over there. It compiles ... Inspired by a patch from Dave Airlie, but with a split between drm.ko private legacy functions and stuff used by drivers. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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