Commit Graph

285 Commits

Author SHA1 Message Date
Rob Clark 466c268671 drm/msm/mdp4: drop private primary ptr
Since primary-plane support in core, we can just use crtc->primary.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-16 14:22:43 -05:00
Daniel Thompson 95a9b8d10c drm/msm: Fix fbdev for 16- and 24-bit modes.
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 <daniel.thompson@linaro.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-16 14:22:43 -05:00
Daniel Thompson 77a147e742 drm/msm: Allow exported dma-bufs to be mapped
Currently msm does not implement gem_prime_mmap. Without this it is not
possible to draw onto a dma-buf from userspace (making its very hard to
implement the Android rendering model).

Fixing this is just a matter of adding a little boilerplate.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-16 14:22:43 -05:00
Rob Clark 067fef372c drm/msm/hdmi: refactor bind/init
Split up hdmi_init() into hdmi_init() (done at hdmi sub-device
bind/probe time) and hdmi_modeset_init() done from master driver's
modeset_init().

Anything that can fail due to dependencies on other drivers which
may be missing or not probed yet should go in hdmi_init(), so that
devm error/cleanup paths work properly.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-16 14:22:42 -05:00
Rob Clark bc00ae02e4 drm/msm: update generated headers
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-16 14:22:42 -05:00
Rob Clark 0122f96fc2 drm/msm/adreno: slight init order cleanup
Move anything that can fail after call to base class msm_gpu_init().
This way, if we fail, active_list has already been initialized so we
don't trip 'WARN_ON(!list_empty(&gpu->active_list))' in
msm_gpu_cleanup().

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-16 14:22:42 -05:00
Rob Clark b7bbd6406a drm/msm: select REGULATOR
Fixes a potential error, spotted by Felipe with randconfig:

-----
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c: In function ‘mdp4_kms_init’:
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c:384:2: error: implicit declaration \
        of function ‘devm_regulator_get_exclusive’ [-Werror=implicit-function-declaration]
  mdp4_kms->vdd = devm_regulator_get_exclusive(&pdev->dev, "vdd");
  ^
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c:384:16: error: assignment makes \
        pointer from integer without a cast [-Werror]
  mdp4_kms->vdd = devm_regulator_get_exclusive(&pdev->dev, "vdd");
                ^
-----

Also add a brief comment explaining the use of _get_exclusive()

Reported-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-11-16 14:22:42 -05:00
Boris BREZILLON d7f8db5300 drm: flip-work: change drm_flip_work_init prototype
Now that we're using lists instead of kfifo to store drm flip-work tasks
we do not need the size parameter passed to drm_flip_work_init function
anymore.
Moreover this function cannot fail anymore, we can thus remove the return
code.

Modify drm_flip_work_init users to take account of these changes.

[airlied: fixed two unused variable warnings]

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-15 09:29:14 +10:00
Wolfram Sang 6a4d005e64 gpu: drm: msm: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:20:33 +02:00
Maarten Lankhorst b5e9c1a25f drm: Pass dma-buf as argument to gem_prime_import_sg_table
Allows importing dma_reservation_objects from a dma-buf.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
2014-09-30 14:04:00 +02:00
Daniel Vetter d9fc9413f9 drm: Extract <drm/drm_gem.h>
v2: Don't forget git add, noticed by David.

Cc: David Herrmann <dh.herrmann@gmail.com>

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-24 11:43:41 +10:00
Dave Airlie b2efb3f0a1 Linux 3.17-rc5
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drm: backmerge tag 'v3.17-rc5' into drm-next

This is requested to get the fixes for intel and radeon into the
same tree for future development work.

i915_display.c: fix missing dev_priv conflict.
2014-09-16 11:38:04 +10:00
Rob Clark 3a10ba8c6b drm/msm: don't crash if no msm.vram param
If VRAM carveout is used, due to no IOMMU, we should have a default
value for msm.vram so that we don't simply crash.

Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-11 06:49:21 -04:00
Rob Clark 28a38b6562 drm/msm/hdmi: fix build break on non-CCF platforms
Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-11 06:49:20 -04:00
Mark Charlebois fc886107c5 drm/msm: Change nested function to static function
There is currently a nested function in Russel King's tree
for the msm HDMI driver.

The last nested function was removed from the Linux kernel
when the Thinkpad driver was fixed.

I believe nested functions are not desired upstream, and it
also breaks compilation with clang so here is a patch to
change the nested function into static function. The patch
works with both clang and gcc.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-11 06:49:20 -04:00
Rob Clark 3bcefb0497 drm/msm/adreno: push dump/show stuff to base class
Add ptr to list of interesting registers to 'struct adreno_gpu' and use
that to move most of the debugfs show and register dump bits down into
adreno_gpu.  This will avoid duplication as support for additional
adreno generations is added.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-10 11:19:09 -04:00
Rob Clark 3526e9fb4f drm/msm/adreno: bit of init refactoring
Push a few bits down into adreno_gpu so they won't have to be duplicated
as support for additional adreno generations is added.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-10 11:19:09 -04:00
Rob Clark e2550b7a7d drm/msm/adreno: move decision about what gpu to to load
Move this into into adreno_device, and decide based on gpu revision
rather than just assuming a3xx.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-10 11:19:08 -04:00
Rob Clark bfd28b1362 drm/msm/adreno: split adreno device out into it's own file
We'd rather not duplicate these parts as support for additional gpu
generations is added.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-10 11:19:08 -04:00
Rob Clark 3e87599b68 drm/msm/mdp4: add LVDS panel support
LVDS panel support uses the LCDC (parallel) encoder.  Unlike with HDMI,
there is not a separate LVDS block, so no need to split things into a
bridge+connector.  Nor is there is anything re-used with mdp5.

Note that there can be some regulators shared between HDMI and LVDS (in
particular, on apq8064, ext_3v3p), so we should not use the _exclusive()
variants of devm_regulator_get().

The drm_panel framework is used for panel-specific driver.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-10 11:19:07 -04:00
Rob Clark d65bd0e431 drm/msm/mdp4: fix blend setup with multiple crtcs
In particular, blend_setup() should not overwrite the other crtc's mixer
settings.  Also, the encoder needs to be able to specify the mixer-id
explicitly, since both LVDS and DTV use 'INTF_LVDC_DTV', so we cannot
guess the mixer-id from the interface.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-10 11:19:06 -04:00
Rob Clark f9a1ca5c47 drm/msm: update generated headers
In particular, pick up the definitions for a handful of LVDS related
registers.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-09-10 11:19:05 -04:00
David Herrmann 915b4d11b8 drm: add driver->set_busid() callback
One step closer to dropping all the drm_bus_* code:
Add a driver->set_busid() callback and make all drivers use the generic
helpers. Nouveau is the only driver that uses two different bus-types with
the same drm_driver. This is totally broken if both buses are available on
the same machine (unlikely, but lets be safe). Therefore, we create two
different drivers for each platform during module_init() and set the
set_busid() callback respectively.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-10 17:43:04 +10:00
Wei Yongjun 0d9509d211 drm/msm: Fix missing unlock on error in msm_fbdev_create()
Add the missing unlock before return from function msm_fbdev_create()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-26 10:43:31 -04:00
Rob Clark 12313c2aa8 drm/msm: fix compile error for non-dt builds
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-26 10:43:31 -04:00
Rob Clark 119ecb7fd3 drm/msm/mdp4: request vblank during modeset
This avoids a problem seen with weston (for example) where the display
gets stuck in "black screen" if starting weston first thing after boot.
Possibly mdp5 needs something similar.  The downstream android fbdev
driver always requests DMA_E (or DMA_P) when display is active, rather
than only enabling it on-demand as the drm driver does, which I believe
has the same end result.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-26 10:43:31 -04:00
Rob Clark 6814dbf941 drm/msm: avoid flood of kernel logs on faults
87e956e9 changed the fault handler to return -ENOSYS, which causes the
iommu driver to print out a huge splat.  Which wouldn't be quite so bad
if nothing ever faulted.  But seems like some EXA composite operations
generate quite a lot of (seemingly harmless) faults.  That is probably a
userspace problem, but the huge increase in verbosity from iommu fault
dumps makes things kind of unusable.

We probably should actually log *some* message (not conditional on
drm.debug).  But ratelimit it.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-26 10:43:31 -04:00
Beeresh Gopal a2fe6cdc03 drm/msm/hdmi: fix HDMI_MUX_EN gpio request typo
HDMI_MUX_EN gpio is requested. If an error occurs, the same name
should be printed (HDMI_MUX_EN) instead of HDMI_MUX_SEL (typo).

Signed-off-by: Beeresh Gopal <gbeeresh@codeaurora.org>
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:30 -04:00
Beeresh Gopal 1930f38a5d drm/msm/hdmi: enable lpm-mux if it is present
lpm-mux is programmed to enable HDMI connector
on the docking station for S805 chipset based
devices.

Signed-off-by: Beeresh Gopal <gbeeresh@codeaurora.org>
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:30 -04:00
Stephane Viau 3d47fd47f2 drm/msm/mdp5: add support for MDP5 v1.3
MDP5 has several functional blocks (ie: VIG/RGB pipes, LMs, ...).
From one revision to another, these blocks' base addresses might
change due to the number of instances present in the MDP5 hw.
A way of dealing with these offset changes is to introduce
dynamic offsets 'per block'.

This change adds support for the new revision of MDP5: v1.3.
The idea is to define one hw config per MDP version and select
either one of them at runtime, after reading the MDP5 version.

Once the MDP version is known, 'per block' dynamic offsets
are initialized through a global pointer, which is then used for
read/write register access.

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:30 -04:00
Rob Clark a1ad352333 drm/msm: fix potential deadlock in gpu init
Somewhere along the way, the firmware loader sprouted another lock
dependency, resulting in possible deadlock scenario:

 &dev->struct_mutex --> &sb->s_type->i_mutex_key#2 --> &mm->mmap_sem

which is problematic vs things like gem mmap.

So introduce a separate mutex to synchronize gpu init.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:29 -04:00
Rob Clark 944fc36c31 drm/msm: use upstream iommu
Downstream kernel IOMMU had a non-standard way of dealing with multiple
devices and multiple ports/contexts.  We don't need that on upstream
kernel, so rip out the crazy.

Note that we have to move the pinning of the ringbuffer to after the
IOMMU is attached.  No idea how that managed to work properly on the
downstream kernel.

For now, I am leaving the IOMMU port name stuff in place, to simplify
things for folks trying to backport latest drm/msm to device kernels.
Once we no longer have to care about pre-DT kernels, we can drop this
and instead backport upstream IOMMU driver.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:29 -04:00
Rob Clark 1c4997fe41 drm/msm: no mmu is only error if not using vram carveout
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:29 -04:00
Rob Clark 036c17082a drm/msm: fix BUG_ON() in error cleanup path
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:29 -04:00
Rob Clark e8abb5b5f4 drm/msm/mdp4: add mdp axi clk
Downstream kernel holds this clk via a fake-parent relationship.
Upstream clock framework requires that we hold it explicitly.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:28 -04:00
Rob Clark 034fbcc3d8 drm/msm: hdmi phy 8960 phy pll
On downstream kernel the clk driver directly bangs hdmi phy registers.
For upstream kernel, we need to model this as a clock and register with
the clock framework.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:28 -04:00
Rob Clark 89301471e6 drm/msm: update generated headers
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:28 -04:00
Rob Clark 41e69778c8 drm/msm: DT support for 8960/8064 (v3)
Now that we (almost) have enough dependencies in place (MMCC, RPM, etc),
add necessary DT support so that we can use drm/msm on upstream kernel.

v2: update for review comments
v3: rebase on component helper changes

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:28 -04:00
Hai Li 8f67da335d drm/msm: Implement msm drm fb_mmap callback function
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 <hali@codeaurora.org>
Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com> (+ minor comment tweak)
2014-08-04 11:55:28 -04:00
Stephane Viau 3bf6c1ecae drm/msm: activate iommu support
This changes activates the iommu support for MDP5, through the
platform config structure.

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:28 -04:00
Rob Clark b544021f18 drm/msm: fix double struct_mutex acquire
Mutex is already grabbed in show_locked().. somehow this slipped
through.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-08-04 11:55:27 -04:00
Dave Airlie 78660d5fb0 Merge branch 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next
pull the msm patch in.
* 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm: msm: update to use component match support
2014-07-23 14:30:13 +10:00
Thierry Reding 10a2310265 drm: Introduce drm_fb_helper_prepare()
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 <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-07-08 11:31:28 +10:00
Thierry Reding 3a4938799d drm: Constify struct drm_fb_helper_funcs
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 <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-07-08 11:31:15 +10:00
Dave Airlie f71c5d9dd2 Merge branch 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
* 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux:
  drm/omap: remove null test before kfree
  drm/bochs: replace ALIGN(PAGE_SIZE) by PAGE_ALIGN
  drm/ttm: recognize ARM arch in ioprot handler
  drm: enable render-nodes by default
  drm/ttm: remove declaration of ttm_tt_cache_flush
  drm/gem: remove misleading gfp parameter to get_pages()
  drm/omap: use __GFP_DMA32 for shmem-backed gem
  drm/i915: use shmem helpers if possible

Conflicts:
	drivers/gpu/drm/drm_stub.c
2014-07-08 11:08:31 +10:00
Dave Airlie afa95e7403 Merge tag 'topic/core-stuff-2014-06-30' of git://anongit.freedesktop.org/drm-intel into drm-next
misc core patches picked up by Daniel and Jani.

* tag 'topic/core-stuff-2014-06-30' of git://anongit.freedesktop.org/drm-intel:
  drm/fb-helper: Remove unnecessary list empty check in drm_fb_helper_debug_enter()
  drm/fb-helper: Redundant info->fix.type_aux setting in drm_fb_helper_fill_fix()
  drm/debugfs: add an "edid_override" file per connector
  drm/debugfs: add a "force" file per connector
  drm: add register and unregister functions for connectors
  drm: fix uninitialized acquire_ctx fields (v2)
  drm: Driver-specific ioctls range from 0x40 to 0x9f
  drm: Don't export internal module variables
2014-07-08 11:04:35 +10:00
David Herrmann 0cdbe8ac69 drm/gem: remove misleading gfp parameter to get_pages()
drm_gem_get_pages() currently allows passing a 'gfp' parameter that is
passed to shmem combined with mapping_gfp_mask(). Given that the default
mapping_gfp_mask() is GFP_HIGHUSER, it is _very_ unlikely that anyone will
ever make use of that parameter. In fact, all drivers currently pass
redundant flags or 0.

This patch removes the 'gfp' parameter. The only reason to keep it is to
remove flags like __GFP_WAIT. But in its current form, it can only be used
to add flags. So to remove __GFP_WAIT, you'd have to drop it from the
mapping_gfp_mask, which again is stupid as this mask is used by shmem-core
for other allocations, too.

If any driver ever requires that parameter, we can introduce a new helper
that takes the raw 'gfp' parameter. The caller'd be responsible to combine
it with mapping_gfp_mask() in a suitable way. The current
drm_gem_get_pages() helper would then simply use mapping_gfp_mask() and
call the new helper. This is what shmem_read_mapping_pages{_gfp,} does
right now.

Moreover, the gfp-zone flag-usage is not obvious: If you pass a modified
zone, shmem core will WARN() or even BUG(). In other words, the following
must be true for 'gfp' passed to shmem_read_mapping_pages_gfp():
    gfp_zone(mapping_gfp_mask(mapping)) == gfp_zone(gfp)
Add a comment to drm_gem_read_pages() explaining that constraint.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
2014-07-08 00:29:53 +02:00
Russell King 8444828854 drm: msm: update to use component match support
Update MSM's DRM driver to use the component match support rather than
add_components.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-07-04 18:05:57 +01:00
Stephane Viau 87e956e9be drm/msm: fix IOMMU cleanup for -EPROBE_DEFER
If probe fails after IOMMU is attached, we need to detach in order to
clean up properly.  Before this change, IOMMU faults would occur if the
probe failed (-EPROBE_DEFER).

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-22 08:32:10 -04:00
Fabian Frederick cf3198c205 drm/msm: use PAGE_ALIGNED instead of IS_ALIGNED(PAGE_SIZE)
use mm.h definition

Cc: David Airlie <airlied@linux.ie>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-22 08:32:10 -04:00
Stephane Viau b77f47e789 drm/msm/hdmi: set hdp clock rate before prepare_enable
The clock driver usually complains when a clock is being prepared
before setting its rate. It is the case here for "core_clk" which
needs to be set at 19.2 MHz before we attempt a prepare_enable().

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-22 08:32:09 -04:00
Peter Griffin 370a4d8a79 drm/msm: storage class should be before const qualifier
The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-22 08:32:09 -04:00
Matwey V. Kornilov 2557e2d79d drm/msm: Replace type of paddr to uint32_t.
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 <matwey@sai.msu.ru>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-22 08:32:09 -04:00
Thomas Wood 34ea3d3863 drm: add register and unregister functions for connectors
Introduce generic functions to register and unregister connectors. This
provides a common place to add and remove associated user space
interfaces.

Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-06-19 08:55:28 +02:00
Rob Clark 5ea1f752ae drm: add drm_fb_helper_restore_fbdev_mode_unlocked()
All drm_fb_helper_restore_fbdev_mode() call sites, save one, do the same
locking.  Simplify this into drm_fb_helper_restore_fbdev_mode_unlocked().

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-06-05 10:02:40 +10:00
Rob Clark 543d3011f1 drm/msm: use correct gfp flag for vram allocation
We want at least __GFP_WAIT, otherwise dma-mapping tries to use coherent
pool rather than CMA pool.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-02 07:36:31 -04:00
Rob Clark a0906a023b drm/msm/mdp5: fix error return value
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-02 07:36:30 -04:00
Rob Clark 814cb96fdc drm/msm: remove redundant private plane cleanup
Now that drm core knows about private planes, it cleans them up for us.
Trying to do this twice results in badness.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-02 07:36:29 -04:00
Rob Clark 70c70f091b drm/msm: add perf logging debugfs
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-02 07:36:21 -04:00
Rob Clark a7d3c9509b drm/msm: add rd logging debugfs
To ease debugging, add debugfs file which can be cat/tail'd to log
submits, along with fence #.  If GPU hangs, you can look at 'gpu'
debugfs file to find last completed fence and current register state,
and compare with logged rd file to narrow down the DRAW_INDX which
triggered the GPU hang.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-06-02 07:36:11 -04:00
Rob Clark fb27b8f29f drm/msm: update for ARCH_MSM -> ARCH_QCOM
Architecture rename/split..  ARCH_QCOM is for the non-legacy platforms
(ie. device-tree, multiplatform support, etc).

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-05-30 15:37:54 -04:00
Rob Clark 3189650d7f drm/msm/hdmi: use gpio and HPD polling
The hotplug detect and irq does not seem to be reliable on all devices
for some reason.  For now it is more reliable to use polling, and give
preference to raw gpio status if it disagrees with the debounced hpd
status.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-05-30 15:32:42 -04:00
Rob Clark 8a57e95057 drm/msm/mdp5: fix crash in error/unload paths
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-05-30 15:29:42 -04:00
Dave Airlie 444c9a08bf Merge branch 'drm-init-cleanup' of git://people.freedesktop.org/~danvet/drm into drm-next
Next pull request, this time more of the drm de-midlayering work. The big
thing is that his patch series here removes everything from drm_bus except
the set_busid callback. Thierry has a few more patches on top of this to
make that one optional to.

With that we can ditch all the non-pci drm_bus implementations, which
Thierry has already done for the fake tegra host1x drm_bus.

Reviewed by Thierry, Laurent and David and now also survived some testing
on my intel boxes to make sure the irq fumble is fixed correctly ;-) The
last minute rebase was just to add the r-b tags from Thierry for the 2
patches I've redone.

* 'drm-init-cleanup' of git://people.freedesktop.org/~danvet/drm:
  drm/<drivers>: don't set driver->dev_priv_size to 0
  drm: Remove dev->kdriver
  drm: remove drm_bus->get_name
  drm: rip out dev->devname
  drm: inline drm_pci_set_unique
  drm: remove bus->get_irq implementations
  drm: pass the irq explicitly to drm_irq_install
  drm/irq: Look up the pci irq directly in the drm_control ioctl
  drm/irq: track the irq installed in drm_irq_install in dev->irq
  drm: rename dev->count_lock to dev->buf_lock
  drm: Rip out totally bogus vga_switcheroo->can_switch locking
  drm: kill drm_bus->bus_type
  drm: remove drm_dev_to_irq from drivers
  drm/irq: remove cargo-culted locking from irq_install/uninstall
  drm/irq: drm_control is a legacy ioctl, so pci devices only
  drm/pci: fold in irq_by_busid support
  drm/irq: simplify irq checks in drm_wait_vblank
2014-05-01 09:32:21 +10:00
Rob Clark 7d8d9f6705 drm/msm/mdp4: cure for the cursor blues (v2)
The hw cursor is relatively adept at triggering underflows, which
manifest as a "blue flash" (since blue is configured as the underflow
color).  Juggle a few things around to tighten up the timing for setting
cursor registers in DONE irq.

And most importantly, don't ever disable the hw cursor.  Instead flip it
to a blank/empty cursor.  This seems far more reliable, as even simply
clearing the cursor-enable bit (with no other updates in previous/
following frames) can in some cases cause underflow.

v1: original
v2: add missing locking spotted by Micah

Cc: Micah Richert <richert@braincorporation.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-04-25 08:58:23 -04:00
Rob Clark 96673ecbd7 drm/msm: default to XR24 rather than AR24
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 <robdclark@gmail.com>
2014-04-25 08:58:23 -04:00
Micah Richert 1ffa2425bf drm/msm: fix memory leak
Signed-off-by: Micah Richert <richert@braincorporation.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-04-25 08:58:23 -04:00
Daniel Vetter bb0f1b5c16 drm: pass the irq explicitly to drm_irq_install
Unfortunately this requires a drm-wide change, and I didn't see a sane
way around that. Luckily it's fairly simple, we just need to inline
the respective get_irq implementation from either drm_pci.c or
drm_platform.c.

With that we can now also remove drm_dev_to_irq from drm_irq.c.

Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-23 10:32:50 +02:00
Linus Torvalds e9f37d3a8d Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "Highlights:

   - drm:

     Generic display port aux features, primary plane support, drm
     master management fixes, logging cleanups, enforced locking checks
     (instead of docs), documentation improvements, minor number
     handling cleanup, pseudofs for shared inodes.

   - ttm:

     add ability to allocate from both ends

   - i915:

     broadwell features, power domain and runtime pm, per-process
     address space infrastructure (not enabled)

   - msm:

     power management, hdmi audio support

   - nouveau:

     ongoing GPU fault recovery, initial maxwell support, random fixes

   - exynos:

     refactored driver to clean up a lot of abstraction, DP support
     moved into drm, LVDS bridge support added, parallel panel support

   - gma500:

     SGX MMU support, SGX irq handling, asle irq work fixes

   - radeon:

     video engine bringup, ring handling fixes, use dp aux helpers

   - vmwgfx:

     add rendernode support"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (849 commits)
  DRM: armada: fix corruption while loading cursors
  drm/dp_helper: don't return EPROTO for defers (v2)
  drm/bridge: export ptn3460_init function
  drm/exynos: remove MODULE_DEVICE_TABLE definitions
  ARM: dts: exynos4412-trats2: enable exynos/fimd node
  ARM: dts: exynos4210-trats: enable exynos/fimd node
  ARM: dts: exynos4412-trats2: add panel node
  ARM: dts: exynos4210-trats: add panel node
  ARM: dts: exynos4: add MIPI DSI Master node
  drm/panel: add S6E8AA0 driver
  ARM: dts: exynos4210-universal_c210: add proper panel node
  drm/panel: add ld9040 driver
  panel/ld9040: add DT bindings
  panel/s6e8aa0: add DT bindings
  drm/exynos: add DSIM driver
  exynos/dsim: add DT bindings
  drm/exynos: disallow fbdev initialization if no device is connected
  drm/mipi_dsi: create dsi devices only for nodes with reg property
  drm/mipi_dsi: add flags to DSI messages
  Skip intel_crt_init for Dell XPS 8700
  ...
2014-04-08 09:52:16 -07:00
Dave Airlie 2614dc6683 Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
* 'msm-next' of git://people.freedesktop.org/~robclark/linux:
  drm/omap: Don't dereference list head when the connectors list is empty
  drm/msm/mdp: add timeout for irq wait
  drm/msm: validate flags, etc
  drm/msm: use componentised device support
  drm/msm: add chip-id param
  drm/msm: crank down gpu when inactive
  drm/msm: spin helper
  drm/msm: add hang_debug module param
  drm/msm: hdmi audio support
2014-04-04 08:03:21 +10:00
Matt Roper f4510a2752 drm: Replace crtc fb with primary plane fb (v3)
Now that CRTC's have a primary plane, there's no need to track the
framebuffer in the CRTC.  Replace all references to the CRTC fb with the
primary plane's fb.

This patch was generated by the Coccinelle semantic patching tool using
the following rules:

        @@ struct drm_crtc C; @@
        -   (C).fb
        +   C.primary->fb

        @@ struct drm_crtc *C; @@
        -   (C)->fb
        +   C->primary->fb

v3: Generate patch via coccinelle.  Actual removal of crtc->fb has been
    moved to a subsequent patch.

v2: Fixup several lingering crtc->fb instances that were missed in the
    first patch iteration.  [Rob Clark]

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:28 -04:00
Matt Roper 2d82d188b2 drm/msm: Switch to universal plane API's
Use drm_universal_plane_init() and drm_crtc_init_with_planes() rather
than the legacy drm_plane_init() / drm_crtc_init().  This will ensure
that the proper primary plane is registered with the DRM (and eventually
exposed to userspace in future patches).

Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-04-01 20:18:27 -04:00
Rob Clark 30b6f8f679 drm/msm/mdp: add timeout for irq wait
Make things recover a bit more gracefully if we get stuck with no vblank
irq ever coming.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:46 -04:00
Rob Clark 93ddb0d3b0 drm/msm: validate flags, etc
After reading a nice article on LWN[1], I went back and double checked
my handling of invalid-input checking.  Turns out there were a couple
places I had missed.

Since the driver is fairly young, and the devices it supports are really
only just barely usable for basic stuff (serial console) with an
upstream kernel, I think we should fix this now and revert specific
parts of this patch later in the unlikely event that a regression is
reported.

[1] https://lwn.net/Articles/588444/

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:46 -04:00
Rob Clark 060530f1ea drm/msm: use componentised device support
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:46 -04:00
Rob Clark 4e1cbaa3eb drm/msm: add chip-id param
Some of the w/a or different behavior of userspace blob driver seem to
be keyed to gpu patch revision, rather than gpu-id.  So expose the full
chip-id to userspace so it can DTRT.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:46 -04:00
Rob Clark 37d77c3ab5 drm/msm: crank down gpu when inactive
Shut down the clks when the gpu has nothing to do.  A short inactivity
timer is used to provide a low pass filter for power transitions.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:46 -04:00
Rob Clark 0963756fe5 drm/msm: spin helper
Helper macro to simplify places where we need to poll with timeout
waiting for gpu.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:45 -04:00
Rob Clark 5b6ef08e4b drm/msm: add hang_debug module param
msm.hang_debug=y will dump out current register values if the gpu locks
up, for easier debugging.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:45 -04:00
Rob Clark c0c0d9eeeb drm/msm: hdmi audio support
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-03-31 10:27:45 -04:00
Arnd Bergmann 23453853e4 Merge tag 'qcom-drivers-for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/drivers
Merge "qcom driver changes for v3.15" from Kumar Gala:

We've split Qualcomm MSM support into legacy and multiplatform.  These
drivers are only relevant on the multiplatform supported SoCs so switch the
Kconfig depends to ARCH_QCOM.

* tag 'qcom-drivers-for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
  gpio: msm: switch Kconfig to ARCH_QCOM depends
  hwrng: msm: switch Kconfig to ARCH_QCOM depends
  power: reset: msm - switch Kconfig to ARCH_QCOM depends
  drm/msm: drop ARCH_MSM Kconfig depend
  tty: serial: msm: Enable building msm_serial for ARCH_QCOM
2014-02-25 18:10:57 +01:00
Kumar Gala 016bcb3b81 drm/msm: drop ARCH_MSM Kconfig depend
The ARCH_MSM depend is redundant with ARCH_MSM8960, so we can remove it.
Additionally, we are splitting Qualcomm MSM support into legacy (ARCH_MSM)
and multiplatform (ARCH_QCOM).  The MSM8960 with be ARCH_QCOM going forward
so dropping ARCH_MSM will work properly for the new ARCH_QCOM multiplatform
build.

Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2014-02-11 14:40:59 -06:00
Dave Airlie 7431105b14 Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
Compared to original fixes pull req that I sent yesterday, this adds
one more fix that I found for a synchronization issue which starts to
crop up when we use XA in DDX for 2d accel on 3d core.  In particular,
accelerating presentation blit triggers this problem.

* 'msm-next' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: bigger synchronization hammer
  drm/msm: fix deadlock in bo create fail path
  drm/msm/mdp4: cursor fixes
  drm/msm/mdp4: pageflip fixes
  drm/msm/mdp5: fix ref leaks in error paths
  drm/msm: fix inconsequential typo
2014-02-11 12:56:17 +10:00
Rob Clark c2703b13a6 drm/msm: bigger synchronization hammer
Because we use a list_head in the bo to track it's position in a submit,
we need to serialize at a higher layer.  Otherwise there are problems
when multiple contexts are SUBMIT'ing in parallel cmdstreams referencing
a shared bo.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-02-07 10:26:25 -05:00
Rob Clark 9999f105e7 drm/msm: fix deadlock in bo create fail path
We already hold struct_mutex here.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-02-05 11:24:42 -05:00
Rob Clark aa1b0e59d3 drm/msm/mdp4: cursor fixes
It seems we need to update all cursor registers from vblank.  This
appears to be the cause of intermittent underflows when enabling/
disabling cursor.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-02-05 11:23:29 -05:00
Rob Clark b69720c0f5 drm/msm/mdp4: pageflip fixes
Backport a few fixes found in the course of getting mdp5 working.
There is a window of time after pageflip is requested, before we
start scanning out the new fb (ie. while we are waiting for gpu).
During that time we need to continue holding a reference to the
still-current scanout fb, to avoid the backing gem bo's from being
destroyed.

Possibly a common mdp_crtc parent class could be useful to share
some of this logic between mdp4_crtc and mdp5_crtc.  OTOH, this
all can be removed from the driver once atomic is in place, as
plane/crtc updates get deferred until all fb's are ready before
calling in to .page_flip(), etc.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-02-05 11:23:07 -05:00
Rob Clark 37033a7689 drm/msm/mdp5: fix ref leaks in error paths
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-02-05 11:15:30 -05:00
Rob Clark 7896052d90 drm/msm: fix inconsequential typo
Small typo I noticed in the mdp4_plane code.. no consequence because
PIPE_SRC_XY and PIPE_DST_XY have same register layout.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-02-05 11:13:51 -05:00
Linus Torvalds 9b0cd304f2 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
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
  ...
2014-01-29 20:49:12 -08:00
Daniel Vetter b04a590623 drm: store the gem vma offset manager in a typed pointer
This was hidden in a generic void * dev->mm_private. But only ever
used for gem. But thanks to this fake generic pretension no one
noticed that Rob's drm drivers are now all broken.

So just give the offset manager a type pointer and fix up msm, omapdrm
and tilcdc.

v2: Fixup compile fail.

v3: Fixup rebase fail that David spotted.

Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-01-14 12:38:32 +10:00
Rob Clark 5545996817 drm/msm: add a330/apq8x74
Add support for adreno 330.  Not too much different, just a few
differences in initial configuration plus setting OCMEM base.
Userspace support is already in upstream mesa.

Note that the existing DT code is simply using the bindings from
downstream android kernel, to simplify porting of this driver to
existing devices.  These do not constitute any committed/stable
DT ABI.  The addition of proper DT bindings will be a subsequent
patch, at which point (as best as possible) I will try to support
either upstream bindings or what is found in downstream android
kernel, so that existing device DT files can be used.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:44:06 -05:00
Rob Clark 06c0dd96bf drm/msm: add mdp5/apq8x74
Add support for the new MDP5 display controller block.  The mapping
between parts of the display controller and KMS is:

  plane   -> PIPE{RGBn,VIGn}             \
  crtc    -> LM (layer mixer)            |-> MDP "device"
  encoder -> INTF                        /
  connector -> HDMI/DSI/eDP/etc          --> other device(s)

Unlike MDP4, it appears we can get by with a single encoder, rather
than needing a different implementation for DTV, DSI, etc.  (Ie. the
register interface is same, just different bases.)

Also unlike MDP4, all the IRQs for other blocks (HDMI, DSI, etc) are
routed through MDP.

And finally, MDP5 has this "Shared Memory Pool" (called "SMP"), from
which blocks need to be allocated to the active pipes based on fetch
stride.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:44:06 -05:00
Rob Clark dada25bd22 drm/msm: add hdmi support for apq8x74/mdp5
The HDMI block is basically the same between older SoC's with mdp4
display controller, and newer ones with mdp5.

So mostly this consists of better abstracting out the different sets of
regulators, clks, etc.  In particular, for regulators and clks we can
split it up by what is needed for hot plug detect to work, and what is
needed to light up the display.

Also, 8x74 has a new phy.. a very simple one, but split out into a
different mmio space.  And with mdp5, the irq is shared with mdp, so we
don't directly register our own irq handler.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:44:05 -05:00
Rob Clark 9e0efa6356 drm/msm: move irq utils to mdp_kms
We'll want basically the same thing for mdp5, so refactor it out so it
can be shared.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:44:05 -05:00
Rob Clark dd2da6e346 drm/msm: split out msm_kms.h
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:44:04 -05:00
Rob Clark 10a02eb646 drm/msm: mdp4_format -> mdp_format
This can be shared between mdp4 and mdp5.  Both use the same set of
parameters to describe the format to the hw.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:43:58 -05:00
Rob Clark facb4f4e7f drm/msm: resync generated headers
resync to latest envytools db, add mdp5 registers

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:38:59 -05:00
Rob Clark 2e54a92ff2 drm/msm: move mdp4 -> mdp/mdp4
There are some little bits and pieces that mdp4 and mdp5 can share, so
move things around so that we can have both in a common parent
directory.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:38:59 -05:00
Rob Clark e529c7e674 drm/msm: add support for msm8060ab/bstem
This adds the necessary configuration for the APQ8060A SoC (dual-core
krait + a320 gpu) as found on the bstem board.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:38:58 -05:00
Rob Clark 871d812aa4 drm/msm: add support for non-IOMMU systems
Add a VRAM carveout that is used for systems which do not have an IOMMU.

The VRAM carveout uses CMA.  The arch code must setup a CMA pool for the
device (preferrably in highmem.. a 256m-512m VRAM pool in lowmem is not
cool).  The user can configure the VRAM pool size using msm.vram module
param.

Technically, the abstraction of IOMMU behind msm_mmu is not strictly
needed, but it simplifies the GEM code a bit, and will be useful later
when I add support for a2xx devices with GPUMMU, so I decided to keep
this part.

It appears to be possible to configure the GPU to restrict access to
addresses within the VRAM pool, but this is not done yet.  So for now
the GPU will refuse to load if there is no sort of mmu.  Once address
based limits are supported and tested to confirm that we aren't giving
the GPU access to arbitrary memory, this restriction can be lifted

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:38:58 -05:00
Rob Clark bf2b33afb9 drm/msm: fix bus scaling
This got a bit broken with original patches when re-arranging things to
move dependencies on mach-msm inside #ifndef OF.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:38:58 -05:00
Rob Clark 3b57f23b1c drm/msm: add missing MODULE_FIRMWARE()s
Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:38:57 -05:00
Rob Clark 3083894f7f drm/msm: COMPILE_TEST support
With a simple stub, we can get COMPILE_TEST support.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2014-01-09 14:38:47 -05:00
Joerg Roedel 4c071c7b85 drm/msm: Fix link error with !MSM_IOMMU
The DRM driver for MSM depends on symbols from the MSM
IOMMU driver. Add this dependency to the Kconfig file.

Fixes this comile error:

  Kernel: arch/arm/boot/zImage is ready
  ERROR: "msm_iommu_get_ctx" [drivers/gpu/drm/msm/msm.ko]
  undefined!
  make[2]: *** [__modpost] Error 1

Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-01-07 23:23:36 +01:00
Daniel Vetter e9f0d76f3b drm: Kill DRM_IRQ_ARGS
I've killed them a long time ago in drm/i915, let's get rid of this
remnant of shared drm core days for good.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:33:46 +10:00
Daniel Vetter 0ff420f7f5 drm/msm: call drm_put_dev directly in ->remove
The drvdata pointer is already assigned to something useful.

Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-12-18 11:05:49 +10:00
Dave Airlie c4b3a81f4e Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
prime support, inactive rework, render nodes
* 'msm-next' of git://people.freedesktop.org/~robclark/linux:
  drm/msm/mdp4: page_flip cleanups/fixes
  drm/msm: EBUSY status handling in msm_gem_fault()
  drm/msm: rework inactive-work
  drm/msm: add plane support
  drm/msm: resync generated headers
  drm/msm: support render nodes
  drm/msm: prime support
2013-11-10 18:27:31 +10:00
Rob Clark 2a2b8fa628 drm/msm/mdp4: page_flip cleanups/fixes
There were a few potential problems with the original page_flip/vblank
code in mdp4_crtc.

1) We need vblank irq for a couple things, both completing flips and
   updating cursor.  We need to keep track of what work is pending so
   that (for example) a cursor update while we are still waiting for
   pageflip_cb (ie. pageflip requested from userspace, but still
   waiting for rendering to complete) would not prematurely trigger
   event to userspace.

2) A preclose -> pageflip-cancel should not cancel a pageflip that
   was requested on a different file (ie. non-master closing should
   not cancel a pending pageflip).

With these fixes, we no longer have problems w/ cursor not updating and
with occasional hangs with userspace waiting for a pageflip that had
been cancelled (launching XBMC from gnome-shell overview mode was a good
way to trigger this, but now works reliably).

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-11-01 12:39:45 -04:00
Rob Clark 505886d506 drm/msm: EBUSY status handling in msm_gem_fault()
Subsequent threads returning EBUSY from vm_insert_pfn() was not
handled correctly. As a result concurrent access from new threads
to mmapped data caused SIGBUS.

See e79e0fe3

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
2013-11-01 12:39:45 -04:00
Rob Clark edd4fc63a3 drm/msm: rework inactive-work
Re-arrange things a bit so that we can get work requested after a bo
fence passes, like pageflip, done before retiring bo's.  Without any
sort of bo cache in userspace, some games can trigger hundred's of
transient bo's, which can cause retire to take a long time (5-10ms).
Obviously we want a bo cache.. but this cleanup will make things a
bit easier for atomic as well and makes things a bit cleaner.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
2013-11-01 12:39:45 -04:00
Rob Clark a862391871 drm/msm: add plane support
Enable using VG1 and VG2 for planes.  Currently YUV/CSC or scaling is
not enabled, but ARGB and xRGB blending is.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
2013-11-01 12:39:44 -04:00
Rob Clark 22ba8b6b23 drm/msm: resync generated headers
resync to latest envytools db, fixes a typo: s/mpd4/mdp4/

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
2013-11-01 12:39:44 -04:00
Rob Clark b4b15c865d drm/msm: support render nodes
Enable support for drm render nodes for msm by flagging the ioctls
that are safe and only needed for rendering.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
2013-11-01 12:39:44 -04:00
Rob Clark 05b849111c drm/msm: prime support
Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
2013-11-01 12:39:44 -04:00
Daniel Vetter 92b6f89f6b drm: Add separate Kconfig option for fbdev helpers
For drivers which might want to disable fbdev legacy support.

Select the new option in all drivers for now, so this shouldn't result
in any change. Drivers need some work anyway to make fbdev support
optional (if they have it implemented, that is), so the recommended
way to expose this is by adding per-driver options. At least as long
as most drivers don't support disabling the fbdev support.

v2: Update for new drm drivers msm and rcar-du. Note that Rob's msm
driver can already take advantage of this, which allows us to build
msm without any fbdev depencies in the kernel!

v3: Move the MODULE_* stuff from the fbdev helper file to
drm_crtc_helper.c.

Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Acked-by: Dave Airlie <airlied@linux.ie>
Reviewed-by: Chon Ming Lee <chon.ming.lee@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-11 23:36:58 +02:00
Rob Clark 30600a9092 drm/msm: use drm_gem_dumb_destroy helper
Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-28 10:14:06 -04:00
Rob Clark 33b559630c drm/msm: deal with mach/iommu.h removal
We still need an API exported by msm iommu driver (but not visible in
any public header anymore).  For now, just declare the prototype
ourselves, but when msm iommu driver provides a better option, use that
instead.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-28 10:07:06 -04:00
Joerg Roedel c55d1c41df drm/msm: Remove iommu include from mdp4_kms.c
The include file has been removed and the file does not
need it anyway, so remove it. Fixes a compile error.

Signed-off-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-28 09:17:31 -04:00
Thomas Meyer e4826a94c7 drm/msm: Odd PTR_ERR usage
The variable priv->kms is not initialized yet.

Found by "scripts/coccinelle/tests/odd_ptr_err.cocci".
PTR_ERR should access the value just tested by IS_ERR.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
2013-09-28 08:53:26 -04:00
Rob Clark 7e60353a1f drm/msm: drop unnecessary set_need_resched()
This was inherited from i915/udl, and not actually needed.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-16 07:59:49 -04:00
Wei Yongjun aea6a64c38 drm/msm: fix potential NULL pointer dereference
The dereference to 'pdata' should be moved below the NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
2013-09-12 10:32:12 -04:00
Rob Clark 6b8819c811 drm/msm: workaround for missing irq
Occasionally we seem to miss an IRQ from the ME (microengine).  I'm not
entirely sure the root cause, but for now we can unwedge things by
retiring from the hangcheck timer.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-11 17:37:48 -04:00
Rob Clark f816f27243 drm/msm: return -EBUSY if bo still active
When we CPU_PREP a bo with NOSYNC flag (for example, to implement
PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE), an -EBUSY return indicates to
userspace that the bo is still busy.  Previously it was incorrectly
returning 0 in this case.

And while we're in there throw in an bit of extra sanity checking in
case userspace tries to wait for a bogus fence.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-11 17:36:28 -04:00
Wei Yongjun 1f70e079c7 drm/msm: fix return value check in ERR_PTR()
In case of error, the function drm_prime_pages_to_sg() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
2013-09-11 17:31:33 -04:00
Rob Clark 198725337e drm/msm: fix cmdstream size check
Need to check size+offset against bo size (duh!).. now we have a test
case to make sure I've done it right:

https://github.com/freedreno/msmtest/blob/master/submittest.c

Also, use DRM_ERROR() for error case traces, which makes debugging
userspace easier when enabling debug traces is too much.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-10 13:57:42 -04:00
Rob Clark 26791c48e1 drm/msm: hangcheck harder
If gpu locks up with the rptr shortly beyond the wrap-around point in
the ringbuffer, because the rptr was not reset (but wptr is, by virtue
of resetting rb->cur), we could end up in a scenario where we think
there is not enough space in the ringbuffer for the next cmds.  And
since the CP won't reset rptr until after processing an IB, this leaves
things in a sort of deadlock.

So reset rptr too.  And a bit more spiffing up of hangcheck to make
things easier to debug.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-10 13:56:59 -04:00
Rob Clark bf6811f304 drm/msm: handle read vs write fences
The userspace API already had everything needed to handle read vs write
synchronization.  This patch actually bothers to hook it up properly, so
that we don't need to (for example) stall on userspace read access to a
buffer that gpu is also still reading.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-09-10 13:56:58 -04:00
Rob Clark a3376e3ec8 drm/msm: convert to drm_bridge
Drop the msm_connector base class, and special calls to base class
methods from the encoder, and use instead drm_bridge.  This allows for a
cleaner division between the hdmi (and in future dsi) blocks, from the
mdp block.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-09-02 10:23:35 +10:00
Keith Packard ed8d19756e drm: Pass page flip ioctl flags to driver
This lets drivers see the flags requested by the application

[airlied: fixup for rcar/imx/msm]

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
2013-08-30 09:24:54 +10:00
Rob Clark bd6f82d828 drm/msm: add basic hangcheck/recovery mechanism
A basic, no-frills recovery mechanism in case the gpu gets wedged.  We
could try to be a bit more fancy and restart the next submit after the
one that got wedged, but for now keep it simple.  This is enough to
recover things if, for example, the gpu hangs mid way through a piglit
run.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-08-24 14:57:19 -04:00
Rob Clark 7198e6b031 drm/msm: add a3xx gpu support
Add initial support for a3xx 3d core.

So far, with hardware that I've seen to date, we can have:
 + zero, one, or two z180 2d cores
 + a3xx or a2xx 3d core, which share a common CP (the firmware
   for the CP seems to implement some different PM4 packet types
   but the basics of cmdstream submission are the same)

Which means that the eventual complete "class" hierarchy, once
support for all past and present hw is in place, becomes:
 + msm_gpu
   + adreno_gpu
     + a3xx_gpu
     + a2xx_gpu
   + z180_gpu

This commit splits out the parts that will eventually be common
between a2xx/a3xx into adreno_gpu, and the parts that are even
common to z180 into msm_gpu.

Note that there is no cmdstream validation required.  All memory access
from the GPU is via IOMMU/MMU.  So as long as you don't map silly things
to the GPU, there isn't much damage that the GPU can do.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-08-24 14:57:18 -04:00
Rob Clark 902e6eb851 drm/msm: add register definitions for gpu
Generated from rnndb files in:

https://github.com/freedreno/envytools

Keep this split out as a separate commit to make it easier to review the
actual driver.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-08-24 14:57:18 -04:00
Rob Clark c8afe684c9 drm/msm: basic KMS driver for snapdragon
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 <robdclark@gmail.com>
2013-08-24 14:57:07 -04:00
Rob Clark 0cf6c71d70 drm/msm: add register definitions
Generated from rnndb files in:

https://github.com/freedreno/envytools

Keep this split out as a separate commit to make it easier to review the
actual driver.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2013-08-24 14:33:01 -04:00