Inki Dae [Fri, 19 Oct 2012 08:37:35 +0000 (17:37 +0900)]
drm/exynos: add iommu support for hdmi driver
Changelog v2:
move iommu support feature to mixer side.
And below is Prathyush's comment.
According to the new IOMMU framework for exynos sysmmus,
the owner of the sysmmu-tv is mixer (which is the actual
device that does DMA) and not hdmi.
The mmu-master in sysmmu-tv node is set as below in exynos5250.dtsi
sysmmu-tv {
-
mmu-master = <&mixer>;
};
Changelog v1:
The iommu will be enabled when hdmi sub driver is probed and
will be disabled when removed.
Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Inki Dae [Sat, 20 Oct 2012 14:53:42 +0000 (07:53 -0700)]
drm/exynos: add iommu support for exynos drm framework
Changelog v4:
- fix condition to drm_iommu_detach_device funtion.
Changelog v3:
- add dma_parms->max_segment_size setting of drm_device->dev.
- use devm_kzalloc instead of kzalloc.
Changelog v2:
- fix iommu attach condition.
. check archdata.dma_ops of drm device instead of
subdrv device's one.
- code clean to exynos_drm_iommu.c file.
. remove '#ifdef CONFIG_ARM_DMA_USE_IOMMU' from exynos_drm_iommu.c
and add it to driver/gpu/drm/exynos/Kconfig.
Changelog v1:
This patch adds iommu support for exynos drm framework with dma mapping
api. In this patch, we used dma mapping api to allocate physical memory
and maps it with iommu table and removed some existing codes and added
new some codes for iommu support.
GEM allocation requires one device object to use dma mapping api so
this patch uses one iommu mapping for all sub drivers. In other words,
all sub drivers have same iommu mapping.
Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Marek Szyprowski [Mon, 15 Oct 2012 14:03:52 +0000 (16:03 +0200)]
ARM: dma-mapping: add support for DMA_ATTR_FORCE_CONTIGUOUS attribute
This patch adds support for DMA_ATTR_FORCE_CONTIGUOUS attribute for
dma_alloc_attrs() in IOMMU-aware implementation. For allocating physically
contiguous buffers Contiguous Memory Allocator is used.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
This patch adds DMA_ATTR_FORCE_CONTIGUOUS attribute to the DMA-mapping
subsystem.
By default DMA-mapping subsystem is allowed to assemble the buffer
allocated by dma_alloc_attrs() function from individual pages if it can
be mapped as contiguous chunk into device dma address space. By
specifing this attribute the allocated buffer is forced to be contiguous
also in physical memory.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Imre Deak [Fri, 2 Nov 2012 11:30:50 +0000 (13:30 +0200)]
drm: hold event_lock while accessing vblank_event_list
Currently the only users of drm_vblank_off() are i915 and gma500,
neither of which holds the event_lock when calling this function.
Fix this by holding the event_lock while traversing the list.
Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Imre Deak [Fri, 2 Nov 2012 11:30:49 +0000 (13:30 +0200)]
drm/exynos: fix lockdep for event_lock wrt. vbl_time_lock
Currently the exynos driver calls drm_vblank_off() with the event_lock
held, while drm_vblank_off() will lock vbl_time and vblank_time_lock.
This lock dependency chain conflicts with the one in drm_handle_vblank()
where we first lock vblank_time_lock and then the event_lock.
Fix this by removing the above drm_vblank_off() calls which are in fact
never executed: drm_dev->vblank_disable_allowed is only ever non-zero
during driver init, until it's set in {fimd,vidi}_subdrv_probe. Both the
driver init and open code is protected by drm_global_mutex, so the
earliest page flip ioctl can happen only after vblank_disable_allowed is
set to 1. Thus {fimd,vidi}_finish_pageflip - with pending flip events -
will always get called with vblank_disable_allowed being 1.
Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Imre Deak [Fri, 2 Nov 2012 11:30:48 +0000 (13:30 +0200)]
drm/exynos: call drm_vblank_put for each queued flip event
It's guaranteed that for each event on pageflip_event_list we have
called drm_vblank_get() - see exynos_drm_crtc_page_flip() - so checking
for this is redundant.
Also we need to call drm_vblank_put() for each event on the list, not
only once, otherwise we'd leak vblank references if there are multiple
events on the list.
Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Sachin Kamat [Mon, 19 Nov 2012 09:20:30 +0000 (14:50 +0530)]
drm/exynos: Fix potential NULL pointer dereference in exynos_drm_encoder.c
Check overlay_ops is not NULL as checked in the previous 'if' condition.
Fixes the following smatch error:
drivers/gpu/drm/exynos/exynos_drm_encoder.c:509 exynos_drm_encoder_plane_disable()
error: we previously assumed 'overlay_ops' could be null (see line 499)
Sachin Kamat [Mon, 19 Nov 2012 09:52:54 +0000 (15:22 +0530)]
drm/exynos: Make exynos4/5_fimd_driver_data static
Fixes the following sparse warnings:
drivers/gpu/drm/exynos/exynos_drm_fimd.c:65:25: warning:
symbol 'exynos4_fimd_driver_data' was not declared. Should it be static?
drivers/gpu/drm/exynos/exynos_drm_fimd.c:69:25: warning:
symbol 'exynos5_fimd_driver_data' was not declared. Should it be static?
Inki Dae [Wed, 14 Nov 2012 11:41:35 +0000 (20:41 +0900)]
drm/exynos: fix overlay updating issue
Chagelog v2:
Move encoder's dpms updating into exynos_drm_encoder_commit
function because when crtc's dpms is updated, encoder's dpms
is updated also. This would induce the issue that encoder
isn't disabled after crtc is disabled.
Changelog v1:
This patch fixes a issue that overlay data aren't applied
to real hardware when dpms off goes to on after setcrtc
was requested like below,
dpms off -> setcrtc -> dpms off -> dpms on
For this, it makes encoder's dpms to be updated when
setcrtc is requested.
Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Dave Airlie [Thu, 29 Nov 2012 10:23:56 +0000 (20:23 +1000)]
Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
Daniel writes:
Besides the big item of lifting the "preliminary hw support" tag from the
Haswell code, just small bits&pieces all over:
- Leftover Haswell patches and some fixes from Paulo
- LyncPoint PCH support (for hsw)
- OOM handling improvements from Chris Wilson
- connector property and send_vblank_event refactorings from Rob Clark
- random pile of small fixes
Note that the send_vblank refactorings will cause some locking WARNs to
show up. Imre has fixed that up, but since all the driver changes outside
of the drm core have been for exonys, those four patches are merged
through the exonys-next tree.
Meh, I've forgotten to cherry-pick an important fix from Ben for a
regression in the 3.8 gen6+ gtt code. New pull request below. While I'm at
it, the hdmi VIC patch for the drm edid code is still in my queue, I'll
send you that in the next 3.8-fixes pull.
* 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel: (33 commits)
drm/i915: Fix pte updates in ggtt clear range
drm/i915: promote Haswell to full support
drm/i915: Report the origin of the LVDS fixed panel mode
drm/i915: LVDS fallback to fixed-mode if EDID not present
drm/i915/sdvo: kfree the intel_sdvo_connector, not drm_connector, on destroy
drm/i915: drm_connector_property -> drm_object_property
drm/i915: use drm_send_vblank_event() helper
drm/i915: Use pci_resource functions for BARs.
drm/i915: Borrow our struct_mutex for the direct reclaim
drm/i915: Defer assignment of obj->gtt_space until after all possible mallocs
drm/i915: Apply the IBX transcoder A w/a for HDMI to SDVO as well
drm/i915: implement WaMbcDriverBootEnable on Haswell
drm/i915: fix intel_ddi_get_cdclk_freq for ULT machines
drm/i915: make the panel fitter work on pipes B and C on Haswell
drm/i915: make the panel fitter work on pipes B and C on IVB
drm/i915: don't intel_crt_init if DDI A has 4 lanes
drm/i915: make DP work on LPT-LP machines
drm/i915: fix false positive "Unclaimed write" messages
drm/i915: use cpu/pch transcoder on intel_enable_pipe
drm/i915: don't limit Haswell CRT encoder to pipe A
...
The existing code uses memset_io which follows memset semantics in only
guaranteeing a write of individual bytes. Since a PTE entry is 4 bytes,
this can only be correct if the scratch page address is 0.
This caused unsightly errors when we clear the range at load time,
though I'm not really sure what the heck is referencing that memory
anyway. I caught this is because I believe we have some other bug where
the display is doing reads of memory we feel should be cleared (or we
are relying on scratch pages to be a specific value).
Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Jingoo Han [Thu, 29 Nov 2012 04:26:05 +0000 (13:26 +0900)]
drm/pci: add missing variable initialization
Fixed build warning as below:
drivers/gpu/drm/drm_pci.c: In function 'drm_pcie_get_speed_cap_mask':
drivers/gpu/drm/drm_pci.c:496:9: warning: 'lnkcap' may be used uninitialized in this function [-Wuninitialized]
drivers/gpu/drm/drm_pci.c:497:10: warning: 'lnkcap2' may be used uninitialized in this function [-Wuninitialized]
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Daniel J Blueman [Sat, 24 Nov 2012 02:11:46 +0000 (10:11 +0800)]
drm/nouveau: prevent log mangling
On 3.7-rc6, add missing newline to to prevent the following kernel log
line getting appended to the current one after switching the integrated
GPU and suspending the discrete GPU.
Signed-off-by: Daniel J Blueman <daniel@quora.org> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Thu, 22 Nov 2012 03:43:55 +0000 (13:43 +1000)]
drm/nve0: allow specification of channel engine type in abi16 call
Previously, if either vram/gart handles were specified as ~0, the ioctl
call would fail. In order to hack engine selection into the ioctl for
kepler, we now define (fb_ctxdma_handle == ~0) to mean "engine mask is
in tt_ctxdma_handle".
This approach also allows new userspace to detect lack of support for
non-PGRAPH channels on older kernels.
Ben Skeggs [Fri, 9 Nov 2012 01:25:37 +0000 (11:25 +1000)]
drm/nvd0/disp: calculate U script id in supervisor interrupt
This is like we do on nv50:nvd9 already. There's been no problems seen
yet with using this *seemingly* scratch register to store the value, but
we won't be able to do this anymore once nv50's code is merged.
Ben Skeggs [Mon, 8 Oct 2012 02:58:23 +0000 (12:58 +1000)]
drm/nouveau/dmaobj: move parent class check to bind() method
Otherwise when nvc0- gains a bind() method (disp needs it), the fifo
engine will attempt to create a dma object for the push buffer, which
is unnecessary on fermi.
The only sane place to put these checks is in the bind method itself,
and have it unconditionally called from wherever it might be needed.
projects / mirror_ubuntu-disco-kernel.git / log