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path: root/drivers/gpu/drm/msm/msm_fbdev.c
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2020-03-06drm: Remove drm_fb_helper add, add all and remove connector callsPankaj Bharadiya1-4/+0
drm_fb_helper_{add,remove}_one_connector() and drm_fb_helper_single_add_all_connectors() are dummy functions now and serve no purpose. Hence remove their calls. This is the preparatory step for removing the drm_fb_helper_{add,remove}_one_connector() functions from drm_fb_helper.h This removal is done using below sementic patch and unused variable compilation warnings are fixed manually. @@ @@ - drm_fb_helper_single_add_all_connectors(...); @@ expression e1; statement S; @@ - e1 = drm_fb_helper_single_add_all_connectors(...); - S @@ @@ - drm_fb_helper_add_one_connector(...); @@ @@ - drm_fb_helper_remove_one_connector(...); Changes since v1: * Squashed warning fixes into the patch that introduced the warnings (into 5/7) (Laurent, Emil, Lyude) Signed-off-by: Pankaj Bharadiya <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Reviewed-by: Emil Velikov <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Reviewed-by: Lyude Paul <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2020-03-06drm: Remove unused arg from drm_fb_helper_initPankaj Bharadiya1-1/+1
The max connector argument for drm_fb_helper_init() isn't used anymore hence remove it. All the drm_fb_helper_init() calls are modified with below sementic patch. @@ expression E1, E2, E3; @@ - drm_fb_helper_init(E1,E2, E3) + drm_fb_helper_init(E1,E2) Signed-off-by: Pankaj Bharadiya <[email protected]> Reviewed-by: Emil Velikov <[email protected]> Reviewed-by: Thomas Zimmermann <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-12-05drm: constify fb ops across all driversJani Nikula1-1/+1
Now that the fbops member of struct fb_info is const, we can start making the ops const as well. Cc: [email protected] Reviewed-by: Daniel Vetter <[email protected]> Signed-off-by: Jani Nikula <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/59b43629ac60031c5bbf961d8c49695019bc9c6f.1575390740.git.jani.nikula@intel.com
2019-09-03drm/msm: Transition console to msm framebufferJeffrey Hugo1-0/+3
If booting a device using EFI, efifb will likely come up and claim the console. When the msm display stack finally comes up, we want the console to move over to the msm fb, so add support to kick out any firmware based framebuffers to accomplish the console transition. Suggested-by: Rob Clark <[email protected]> Signed-off-by: Jeffrey Hugo <[email protected]> Reviewed-by: Rob Clark <[email protected]> Tested-by: Rob Clark <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2019-09-03drm/msm: drop use of drmP.hSam Ravnborg1-0/+1
Drop the deprecated drmP.h header file, and trim msm_drv.h to the relevant include files. This resulted in a suprisingly many edits as many files relied on headers included via msm_drv.h. But msm_drv.h is not supposed to carry include files it do not need, so the individual files have to include what extra they needs. v2: - Rebased on top of https://gitlab.freedesktop.org/drm/msm.git msm-next Signed-off-by: Sam Ravnborg <[email protected]> Cc: Rob Clark <[email protected]> Cc: Sean Paul <[email protected]> Cc: David Airlie <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Jordan Crouse <[email protected]> Cc: Jeykumar Sankaran <[email protected]> Cc: Bruce Wang <[email protected]> Cc: Shayenne Moura <[email protected]> Cc: Mamta Shukla <[email protected]> Cc: Jonathan Marek <[email protected]> Cc: Carsten Behling <[email protected]> Cc: Maarten Lankhorst <[email protected]> Cc: Maxime Ripard <[email protected]> Cc: Paul Kocialkowski <[email protected]> Cc: Sibi Sankar <[email protected]> Cc: Todor Tomov <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Sean Paul <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234Thomas Gleixner1-12/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 503 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Alexios Zavras <[email protected]> Reviewed-by: Allison Randal <[email protected]> Reviewed-by: Enrico Weigelt <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-03-27drm/msm: Use drm_fb_helper_fill_infoDaniel Vetter1-5/+1
This will change the fb name from "msm" to "msmdrmfb". v2: Rebase v3: Fix subject prefix (Noralf) Reviewed-by: Noralf Trønnes <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Cc: Rob Clark <[email protected]> Cc: [email protected] Cc: [email protected] Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-12-11drm/msm: Add msm_gem_get_and_pin_iova()Jordan Crouse1-1/+1
Add a new function to get and pin the iova memory in one step (basically renaming the old msm_gem_get_iova function) and switch msm_gem_get_iova() to only allocate an iova but not map it in the IOMMU. This is only currently used by msm_ioctl_gem_info() since all other users of of the iova expect that the memory be immediately available. Signed-off-by: Jordan Crouse <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2018-12-11drm: msm: Use DRM_DEV_* instead of dev_*Mamta Shukla1-4/+4
Use DRM_DEV_INFO/ERROR/WARN instead of dev_info/err/debug to generate drm-formatted specific log messages so that it will be easy to differentiate in case of multiple instances of driver. Signed-off-by: Mamta Shukla <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2018-04-19drm/msm: don't deref error pointer in the msm_fbdev_create error pathEmil Velikov1-9/+2
Currently the error pointer returned by msm_alloc_stolen_fb gets passed to drm_framebuffer_remove. The latter handles only NULL pointers, thus a nasty crash will occur. Drop the unnecessary fail label and the associated checks - both err and fb will be set at this stage. Cc: Rob Clark <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Emil Velikov <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2017-08-25Merge tag 'drm-msm-next-2017-08-22' of ↵Dave Airlie1-37/+20
git://people.freedesktop.org/~robclark/linux into drm-next Updates for 4.14.. I have some further patches from Jordan to add multiple priority levels and pre-emption, but those will probably be for 4.15 to give me time for the mesa parts. * tag 'drm-msm-next-2017-08-22' of git://people.freedesktop.org/~robclark/linux: drm/msm/mdp5: mark runtime_pm functions as __maybe_unused drm/msm: remove unused variable drm/msm/mdp5: make helper function static drm/msm: make msm_framebuffer_init() static drm/msm: add helper to allocate stolen fb drm/msm: don't track fbdev's gem object separately drm/msm: add modeset module param drm/msm/mdp5: add tracking for clk enable-count drm/msm: remove unused define drm/msm: Add a helper function for in-kernel buffer allocations drm/msm: Attach the GPU MMU when it is created drm/msm: Add A5XX hardware fault detection drm/msm: Remove uneeded platform dev members drm/msm/mdp5: Set up runtime PM for MDSS drm/msm/mdp5: Write to SMP registers even if allocations don't change drm/msm/mdp5: Don't use mode_set helper funcs for encoders and CRTCs drm/msm/dsi: Implement RPM suspend/resume callbacks drm/msm/dsi: Set up runtime PM for DSI drm/msm/hdmi: Set up runtime PM for HDMI drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks
2017-08-22drm/msm: add helper to allocate stolen fbRob Clark1-28/+7
We'll later want to re-use this for state-readback when bootloader enables display, so that we can create an fb for the initial plane->state->fb. Signed-off-by: Rob Clark <[email protected]>
2017-08-22drm/msm: don't track fbdev's gem object separatelyRob Clark1-15/+19
The drm_framebuffer is refcnt'd these days and will unref the underlying bo as needed. So we can simplify a little. Signed-off-by: Rob Clark <[email protected]>
2017-07-26drm/<drivers>: Drop fbdev info flagsDaniel Vetter1-1/+0
- FBINFO_CAN_FORCE_OUTPUT has been a lie ever since we nerfed&removed the entire panic handling code in our fbdev emulation. We might restore kms panic output, but not through the bazillion of legacy code layers called fbdev/fbcon, there's just no way to make that work safely. - With the module check change FBINFO_DEFAULT is always 0, so can be removed too. That removes another change to cargo-cult stuff in kms drivers, yay! Reviewed-by: Sean Paul <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Daniel Vetter <[email protected]>
2017-06-17drm/msm: Separate locking of buffer resources from struct_mutexSushmita Susheelendra1-4/+2
Buffer object specific resources like pages, domains, sg list need not be protected with struct_mutex. They can be protected with a buffer object level lock. This simplifies locking and makes it easier to avoid potential recursive locking scenarios for SVM involving mmap_sem and struct_mutex. This also removes unnecessary serialization when creating buffer objects, and also between buffer object creation and GPU command submission. Signed-off-by: Sushmita Susheelendra <[email protected]> [robclark: squash in handling new locking for shrinker] Signed-off-by: Rob Clark <[email protected]>
2017-06-16drm/msm: pass address-space to _get_iova() and friendsRob Clark1-1/+1
No functional change, that will come later. But this will make it easier to deal with dynamically created address spaces (ie. per- process pagetables for gpu). Signed-off-by: Rob Clark <[email protected]>
2017-06-16drm/msm/mdp4+5: move aspace/id to base classRob Clark1-1/+3
Before we can shift to passing the address-space object to _get_iova(), we need to fix a few places (dsi+fbdev) that were hard-coding the adress space id. That gets somewhat easier if we just move these to the kms base class. Prep work for next patch. Signed-off-by: Rob Clark <[email protected]>
2017-05-17drm/msm: fix include notation and remove -Iinclude/drm flagMasahiro Yamada1-3/+3
Include <drm/*.h> instead of relative path from include/drm, then remove the -Iinclude/drm compiler flag. While we are here, sort the touched parts with public headers first. mdp4_kms.h must declare struct device_node to be self-contained. Signed-off-by: Masahiro Yamada <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-02-07drm/fb-helper: Automatically clean up fb_infoDaniel Vetter1-1/+0
Noticed that everyone duplicates the same logic here and we could safe a few lines per driver. Yay for lots of drivers to make such tiny refactors worth-while! v2: Forgot to git add everything :( v3: Actually remove release_fbi (Sean, Emil, Chris) ... Cc: Chris Wilson <[email protected]> Cc: Sean Paul <[email protected]> Cc: Noralf Trønnes <[email protected]> Cc: Emil Velikov <[email protected]> Reviewed-by: Sean Paul <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-02-02drm: Rely on mode_config data for fb_helper initializationGabriel Krisman Bertazi1-2/+1
Instead of receiving the num_crts as a parameter, we can read it directly from the mode_config structure. I audited the drivers that invoke this helper and I believe all of them initialize the mode_config struct accordingly, prior to calling the fb_helper. I used the following coccinelle hack to make this transformation, except for the function headers and comment updates. The first and second rules are split because I couldn't find a way to remove the unused temporary variables at the same time I removed the parameter. // <smpl> @r@ expression A,B,D,E; identifier C; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ expression A,B,C,D,E; @@ ( - drm_fb_helper_init(A,B,C,D) + drm_fb_helper_init(A,B,D) | - drm_fbdev_cma_init_with_funcs(A,B,C,D,E) + drm_fbdev_cma_init_with_funcs(A,B,D,E) | - drm_fbdev_cma_init(A,B,C,D) + drm_fbdev_cma_init(A,B,D) ) @@ identifier r.C; type T; expression V; @@ - T C; <... when != C - C = V; ...> // </smpl> Changes since v1: - Rebased on top of the tip of drm-misc-next. - Remove mention to sti since a proper fix got merged. Suggested-by: Daniel Vetter <[email protected]> Signed-off-by: Gabriel Krisman Bertazi <[email protected]> Reviewed-by: Eric Anholt <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-01-12drm/msm: Stop using drm_framebuffer_unregister_privateDaniel Vetter1-4/+1
This is the deprecated function for when you embedded the framebuffer somewhere else (which breaks refcounting). But msm is using drm_framebuffer_remove and a free-standing fb, so this is rendundant. Cc: Rob Clark <[email protected]> Reviewed-by: Archit Taneja <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2016-12-15drm: Nuke fb->depthVille Syrjälä1-1/+1
Replace uses of fb->depth with fb->format->depth. Less duplicate information is a good thing. @@ struct drm_framebuffer *fb; expression E; @@ drm_helper_mode_fill_fb_struct(...) { ... - fb->depth = E; ... } @@ struct nouveau_framebuffer *fb; @@ - fb->base.depth + fb->base.format->depth @@ struct drm_framebuffer fb; @@ - fb.depth + fb.format->depth @@ struct drm_framebuffer *fb; @@ - fb->depth + fb->format->depth @@ struct drm_framebuffer fb; @@ - (fb.format->depth) + fb.format->depth @@ struct drm_framebuffer *fb; @@ - (fb->format->depth) + fb->format->depth @@ @@ struct drm_framebuffer { ... - unsigned int depth; ... }; v2: Drop the vmw stuff (Daniel) Rerun spatch due to code changes Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2016-11-28drm/msm: convert iova to 64bRob Clark1-1/+1
For a5xx the gpu is 64b so we need to change iova to 64b everywhere. On the display side, iova is still 32b so it can ignore the upper bits. (Although all the armv8 devices have an iommu that can map 64b pa to 32b iova.) Signed-off-by: Rob Clark <[email protected]>
2016-11-14drm/msm: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ1-6/+1
Cc: Rob Clark <[email protected]> Signed-off-by: Stefan Christ <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2016-07-16drm/msm: change gem->vmap() to get/putRob Clark1-1/+2
Before we can add vmap shrinking, we really need to know which vmap'ings are currently being used. So switch to get/put interface. Stubbed put fxns for now. Signed-off-by: Rob Clark <[email protected]>
2016-07-02Back-merge tag 'v4.7-rc5' into drm-nextDave Airlie1-0/+4
Linux 4.7-rc5 The fsl-dcu pull needs -rc3 so go to -rc5 for now.
2016-06-04drm/msm: deal with exhausted vmap space betterRob Clark1-0/+4
Some, but not all, callers of obj->vmap() would check if return IS_ERR(). So let's actually return an error if vmap() fails. And fixup the call-sites that were not handling this properly. Signed-off-by: Rob Clark <[email protected]>
2016-05-31drm/msm: Nuke dummy gamma_set/get functionsDaniel Vetter1-14/+0
Again the fbdev emulation gamma_set/get functions are only needed for drivers that try to also use 8bpp paletted mode. Which msm doesn't, so this is dead code. Let's rip it out. Cc: Rob Clark <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Reviewed-by: Maarten Lankhorst <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2016-02-11drm/msm: remove unused variableArnd Bergmann1-1/+0
After the drm_device_is_unplugged() was removed, the 'dev' variable is now unused, and we get a warning for that: drivers/gpu/drm/msm/msm_fbdev.c: In function 'msm_fbdev_mmap': drivers/gpu/drm/msm/msm_fbdev.c:65:21: error: unused variable 'dev' [-Werror=unused-variable] This removes the variable as well. Signed-off-by: Arnd Bergmann <[email protected]> Fixes: e9f8250f2f92 ("drm/msm: remove the drm_device_is_unplugged check") Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2016-02-09drm/msm: remove the drm_device_is_unplugged checkHaixia Shi1-3/+0
This flag is only used for drm/udl. Signed-off-by: Haixia Shi <[email protected]> Reviewed-by: Stéphane Marchesin <[email protected]> Reviewed-by: David Herrmann <[email protected]> Acked-by: Rob Clark <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2015-12-14drm/msm: Use unlocked gem unreferencingDaniel Vetter1-1/+1
For drm_gem_object_unreference callers are required to hold dev->struct_mutex, which these paths don't. Enforcing this requirement has become a bit more strict with commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663 Author: Daniel Vetter <[email protected]> Date: Thu Oct 15 09:36:25 2015 +0200 drm/gem: Check locking in drm_gem_object_unreference Cc: Rob Clark <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2015-10-16drm/gem: Drop struct_mutex requirement from drm_gem_mmap_objDaniel Vetter1-5/+0
Since commit 131e663bd6f1055caaff128f9aa5071d227eeb72 Author: Daniel Vetter <[email protected]> Date: Thu Jul 9 23:32:33 2015 +0200 drm/gem: rip out drm vma accounting for gem mmaps there is no need for this any more. v2: Fixup compile noise spotted by 0-day build. Link: http://mid.gmane.org/[email protected] Reviewed-by: David Herrmann <[email protected]> Signed-off-by: Daniel Vetter <[email protected]>
2015-08-06drm/msm: Use new drm_fb_helper functionsArchit Taneja1-24/+10
Use the newly created wrapper drm_fb_helper functions instead of calling core fbdev functions directly. They also simplify the fb_info creation. Cc: Rob Clark <[email protected]> Cc: Stephane Viau <[email protected]> Cc: Hai Li <[email protected]> Signed-off-by: Archit Taneja <[email protected]> Signed-off-by: Daniel Vetter <[email protected]>
2015-04-01drm/msm: add support for "stolen" memRob Clark1-1/+2
Add support to use the VRAM carveout (if specified in dtb) for fbdev scanout buffer. This allows drm/msm to take over a bootloader splash- screen, and avoids corruption on screen that results if the kernel uses memory that is still being scanned out for itself. Signed-off-by: Rob Clark <[email protected]>
2015-02-01drm/msm: fix fallout of atomic dpms changesRob Clark1-3/+0
As a result of atomic DPMS support, the various prepare/commit hooks get called in a way that msm dislikes. We were expecting prepare/commit to bracket a modeset, which is no longer the case. This was needed to hold various extra clk's (such as interface clks) on while we are touching registers, and in the case of mdp4 holding vblank enabled. The most straightforward way to deal with this, since we already have our own atomic_commit(), is to just handle prepare/commit internally to the driver (with some additional vfuncs for mdp4 vs mdp5), and switch everything over to instead use the new enable/disable hooks. It doesn't really change too much, despite the code motion. What used to be in the encoder/crtc dpms() fxns is split out into enable/disable. We should be able to drop our own enable-state tracking, as the atomic helpers should do this for us. But keeping that for the short term for extra debugging as atomic stablizes. Signed-off-by: Rob Clark <[email protected]>
2015-01-21drm/fb-helper: Propagate errors from initial config failureThierry Reding1-2/+8
Make drm_fb_helper_initial_config() return an int rather than a bool so that the error can be properly propagated. While at it, update drivers to propagate errors further rather than just ignore them. v2: - cirrus: No cleanup is required, the top-level cirrus_driver_load() will do it as part of cirrus_driver_unload() in its cleanup path. Reported-by: Fengguang Wu <[email protected]> Cc: David Airlie <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Patrik Jakobsson <[email protected]> Cc: Rob Clark <[email protected]> Cc: Tomi Valkeinen <[email protected]> Cc: Alex Deucher <[email protected]> Cc: Christian König <[email protected]> Cc: Ben Skeggs <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Reviewed-by: Patrik Jakobsson <[email protected]> Reviewed-by: Christian König <[email protected]> [danvet: Squash in simplification patch from kbuild.] Signed-off-by: Daniel Vetter <[email protected]>
2014-12-17drm/msm: Deletion of unnecessary checks before two function callsMarkus Elfring1-2/+1
The functions framebuffer_release() and vunmap() perform also input parameter validation. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Reviewed-by: Thierry Reding <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2014-11-16drm/msm: Fix fbdev for 16- and 24-bit modes.Daniel Thompson1-3/+0
Currently forcing the video mode from the kernel command line (for example video=HDMI-A-1:1280x720-16@60) does not correctly set the number of bits per pixel. This is due to a rather aggressive override in msm_fbdev_create(). This is a particular problem for Android bring up because the software EGL fallbacks don't support 32bpp. Since the overrides are actually the default values anyway then this problem can be trivially fixed by removing the overrides completely. Change was tested by dd'ing a test image to /dev/fb0 with no video= (still 32bpp), video=1920x1080-32@60, video=1920x1080-24@60 and video=1920x1080-16@60 . Signed-off-by: Daniel Thompson <[email protected]> Cc: David Airlie <[email protected]> Cc: Rob Clark <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2014-08-26drm/msm: Fix missing unlock on error in msm_fbdev_create()Wei Yongjun1-1/+1
Add the missing unlock before return from function msm_fbdev_create() in the error handling case. Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2014-08-04drm/msm: Implement msm drm fb_mmap callback functionHai Li1-3/+42
This change implements msm drm specific fb_mmap function for fb device to properly map the fb address to userspace. Signed-off-by: Hai Li <[email protected]> Signed-off-by: Stephane Viau <[email protected]> Signed-off-by: Rob Clark <[email protected]> (+ minor comment tweak)
2014-07-08drm: Introduce drm_fb_helper_prepare()Thierry Reding1-1/+1
To implement hotplug detection in a race-free manner, drivers must call drm_kms_helper_poll_init() before hotplug events can be triggered. Such events can be triggered right after any of the encoders or connectors are initialized. At the same time, if the drm_fb_helper_hotplug_event() helper is used by a driver, then the poll helper requires some parts of the FB helper to be initialized to prevent a crash. At the same time, drm_fb_helper_init() requires information that is not necessarily available at such an early stage (number of CRTCs and connectors), so it cannot be used yet. Add a new helper, drm_fb_helper_prepare(), that initializes the bare minimum needed to allow drm_kms_helper_poll_init() to execute and any subsequent hotplug events to be processed properly. Reviewed-by: Daniel Vetter <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2014-07-08drm: Constify struct drm_fb_helper_funcsThierry Reding1-1/+1
There's no need for this to be modifiable. Make it const so that it can be put into the .rodata section. Reviewed-by: Daniel Vetter <[email protected]> Signed-off-by: Thierry Reding <[email protected]> Acked-by: Russell King <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2014-06-22drm/msm: Replace type of paddr to uint32_t.Matwey V. Kornilov1-1/+1
This patch helps to avoid the following build issue: drivers/gpu/drm/msm/msm_fbdev.c:108:2: error: passing argument 3 of 'msm_gem_get_iova_locked' from incompatible pointer type [-Werror] msm_gem_get_iova_locked(fbdev->bo, 0, &paddr); ^ In file included from drivers/gpu/drm/msm/msm_fbdev.c:18:0: drivers/gpu/drm/msm/msm_drv.h:153:5: note: expected 'uint32_t *' but argument is of type 'dma_addr_t *' int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id, ^ Signed-off-by: Matwey V. Kornilov <[email protected]> Signed-off-by: Rob Clark <[email protected]>
2014-04-25drm/msm: default to XR24 rather than AR24Rob Clark1-4/+1
Since X11 is going to create an XR24 fb, if the pixel formats do not match then crtc helpers will think it is a full modeset even if mode is the same, which prevents smooth/flickerless handover from fbcon/plymouth to X11. Signed-off-by: Rob Clark <[email protected]>
2013-08-24drm/msm: basic KMS driver for snapdragonRob Clark1-0/+258
The snapdragon chips have multiple different display controllers, depending on which chip variant/version. (As far as I can tell, current devices have either MDP3 or MDP4, and upcoming devices have MDSS.) And then external to the display controller are HDMI, DSI, etc. blocks which may be shared across devices which have different display controller blocks. To more easily add support for different display controller blocks, the display controller specific bits are split out into a "kms" module, which provides the kms plane/crtc/encoder objects. The external HDMI, DSI, etc. blocks are part encoder, and part connector currently. But I think I will pull in the drm_bridge patches from chromeos tree, and split them into a bridge+connector, with the registers that need to be set in modeset handled by the bridge. This would remove the 'msm_connector' base class. But some things need to be double checked to make sure I could get the correct ON/OFF sequencing.. This patch adds support for mdp4 crtc (including hw cursor), dtv encoder (part of MDP4 block), and hdmi. Signed-off-by: Rob Clark <[email protected]>
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