The Single-ended eCBUS Mode (eCBUS-S) mode provides 60 Mb/s full-duplex
bidirectional traffic for three channels:
- CBUS data (CBUS1 channel),
- High-bandwidth MHL data (eMSC channel),
- tunneling data (T-CBUS channel).
It is required to fully support MHL3 dongles.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-6-git-send-email-a.hajda@samsung.com
Due to asynchronous nature of MHL flow of execution is dispersed.
Logical continuation of some actions happens after response of peer,
i.e in interrupt handler. To simplify coding continuation mechanism
has been added - it is now possible to provide continuation callback,
which will be called after peer responds to given action.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-5-git-send-email-a.hajda@samsung.com
Now that commandstreams are handled through the cmdbuf suballocator
the workaround to make the IOVA games work is not needed anymore.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
There are 3 big benefits to suballocating a single big DMA buffer
for command submission:
1. Avoid hammering CMA. The old way of allocating and freeing a DMA
buffer for each submission was hitting some of the real slow
pathes in CMA, as this allocator was not designed for a concurrent
small buffers load.
2. Less TLB flushes on IOMMUv2. If a new command buffer is mapped into
the GPU address space the MMU TLBs need to be flushed. By having
one big buffer statically mapped to the GPU, a lot of those flushes
can be avoided.
3. No funky workarounds for GC3000. The FE TLB flush on GC3000 isn't
reliable. To work around that we tried to lay out the cmdbufs in
the GPU address space in a way to avoid this issue. This hasn't
always worked if the address space is crowded. A single statically
mapped buffer avoids the erratum completely.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Don't allow IOMMUv2 to peek directly into the cmdbuf, but get the
needed PA through a dedicated function.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Don't call the IOMMU directly, but go through the new cmdbuf abstraction.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
This will get more complex with the following changes, so move it
into its own place.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
This ensures that the GPU isn't able to write into already freed
objects, as doing this in the IOVA reaper isn't enough, as the
gem_free_object path will also cause unmaps to happen.
On MMUv2 this also ensures that stale entries, which may have
been prefetched into the TLB will be purged.
The flush is low overhead, as it gets batched up with the next
user command buffer, so this isn't incuring an overhead for
each buffer map/unmap.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Declare etnaviv_iommu_ops structure as const as it is only used when
the reference of one of its field is stored in the ops field of a
iommu_domain structure. This ops field is of type const, so
etnaviv_iommu_ops structures having similar properties can be declared
const too.
Done using Coccinelle.
Before and after size details of .o file remains the same after
cross compiling for arm architecture.
lst: Trimmed commit message, apply the same change to iommu_v2.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
No longer true since commit 07f8d9bdb2 ("drm/qxl: add support for > 1
output"). qxl_num_crtc defaults to 4 and is configurable as a module
parameter.
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-1-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
We may keep the crtc's enabled when userspace unsets all framebuffers but
keeps the crtc active. This exposes a WARN in fbc_global disable, and
a lot of bugs in our hardware readout code. Solve this by disabling
all crtc's for now.
Changes since v1:
- Use lock_all_ctx instead of lock_all.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481812185-19098-4-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The DSI0 and DSI1 blocks on the 2835 are related hardware blocks.
Some registers move around, and the featureset is slightly different,
as DSI1 (the 4-lane DSI) is a later version of the hardware block.
This driver doesn't yet enable DSI0, since we don't have any hardware
to test against, but it does put a lot of the register definitions and
code in place.
v2: Use the clk_hw interfaces, don't set CLK_IS_BASIC (from review by
Stephen Boyd)
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/20170131192912.11316-1-eric@anholt.net
We have to set a different pixel format, which tells the hardware to
use the pix_width field that's fed in sideband from the DSI encoder to
divide the "pixel" clock.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161214194621.16499-6-eric@anholt.net
We want the HVS on, obviously, and we also want DSP3 (PV1's source) to
be muxed from HVS channel 2 like we expect in vc4_crtc.c. The
firmware wasn't setting the DSP3 mux up when both the LCD and HDMI
were disabled.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161214194621.16499-5-eric@anholt.net
This is just a cleanup, no functional change.
The fixup code for 1366x768 in drm_mode_create_from_cmdline_mode() is
basically a copy of the existing code in drm_edid.c. Make the latter
code public so that it can be called from the former function.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117164329.10551-1-tiwai@suse.de
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[vsyrjala: include drm_crtc_internal.h to make sparse happy]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Primarily this serves as a sanity check that the bit has been cleared
before we suspend (and hasn't reappeared after resume).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170201131222.11882-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
As we now flag when the GPU signals a context-switch and do not read the
status register before we see that signal, we do not have to ensure that
it is cleared upon reset (and can leave it to the GPU to reset it from
the power context).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170201125338.12932-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Enable MIPI IO WA for BXT DSI as per bspec and
program the DSI regulators.
v2: Moved IO enable to pre-enable as per Mika's
review comments. Also reused the existing register
definition for BXT_P_CR_GT_DISP_PWRON.
v3: Added Programming the DSI regulators as per disable/enable
sequences.
v4: Restricting regulator changes to BXT as suggested by
Jani/Mika
v5: Removed redundant read/modify for regulator register as
per Jani's comment. Maintain enable/disable symmetry as per spec.
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Acked-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485353603-11260-1-git-send-email-vidya.srinivas@intel.com
On a non-llc system, the objects are created with .cache_level =
CACHE_NONE and so the transition to uncached for scanout is a no-op.
However, if the object was never written to, it will still be in the CPU
domain (having been zeroed out by shmemfs). Those cachelines need to be
flushed prior to display.
Reported-and-tested-by: Vito Caputo
Fixes: a6a7cc4b7d ("drm/i915: Always flush the dirty CPU cache when pinning the scanout")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
Link: http://patchwork.freedesktop.org/patch/msgid/20170109111932.6342-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson wants the new fence tracepoint added in
commit 8c96c67801
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Jan 24 11:57:58 2017 +0000
dma/fence: Export enable-signaling tracepoint for emission by drivers
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
adding runtime PM support to MIC driver, and including some
cleanups - especially using atomic helper functions
instead of specific ones - and fixups.
* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: g2d: prevent integer overflow in
drm/exynos: fix a timeout loop
drm/exynos: use atomic helper commit
drm/exynos: remove unnecessary codes
drm/exynos: mic: Add runtime PM support
drm/exynos: Stop using drm_framebuffer_unregister_private
drm/exynos: mic: Fix parse_dt function
drm/exynos: mic: Add mode_set callback function
Just one minor fix.
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Merge tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next
Allwinner DRM changes for 4.11
Just one minor fix.
* tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
drm/sun4i: Fix a return value in case of error
This is to address what we've discussed, moving some of the minor changes
into a drm-next request.
* 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux:
drm/vmwgfx: Use kmemdup instead of kmalloc and memcpy
drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
drm/vmwgfx: Fix a potential integer overflow
drm/vmwgfx: Clear an uninitialized struct member
drm/vmwgfx: Annotate ignored return values
drm/vmwgfx: Clear uninitialized fields of a parameter
This is the main feature pull for radeon and amdgpu for 4.11. Highlights:
- Power and clockgating improvements
- Preliminary SR-IOV support
- ttm buffer priority support
- ttm eviction fixes
- Removal of the ttm lru callbacks
- Remove SI DPM quirks due to MC firmware issues
- Handle VFCT with multiple vbioses
- Powerplay improvements
- Lots of driver cleanups
* 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux: (120 commits)
drm/amdgpu: fix amdgpu_bo_va_mapping flags
drm/amdgpu: access stolen VRAM directly on CZ (v2)
drm/amdgpu: access stolen VRAM directly on KV/KB (v2)
drm/amdgpu: fix kernel panic when dpm disabled on Kv.
drm/amdgpu: fix dpm bug on Kv.
drm/amd/powerplay: fix regresstion issue can't set manual dpm mode.
drm/amdgpu: handle vfct with multiple vbios images
drm/radeon: handle vfct with multiple vbios images
drm/amdgpu: move misc si headers into amdgpu
drm/amdgpu: remove unused header si_reg.h
drm/radeon: drop pitcairn dpm quirks
drm/amdgpu: drop pitcairn dpm quirks
drm: radeon: radeon_ttm: Handle return NULL error from ioremap_nocache
drm/amd/amdgpu/amdgpu_ttm: Handle return NULL error from ioremap_nocache
drm/amdgpu: add new virtual display ID
drm/amd/amdgpu: remove the uncessary parameter for ib scheduler
drm/amdgpu: Bring bo creation in line with radeon driver (v2)
drm/amd/powerplay: fix misspelling in header guard
drm/ttm: revert "add optional LRU removal callback v2"
drm/ttm: revert "implement LRU add callbacks v2"
...
Another round of -misc stuff:
- Noralf debugfs cleanup cleanup (not yet everything, some more driver
patches awaiting acks).
- More doc work.
- edid/infoframe fixes from Ville.
- misc 1-patch fixes all over, as usual
Noralf needs this for his tinydrm pull request.
* tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
drm/vc4: Remove vc4_debugfs_cleanup()
dma/fence: Export enable-signaling tracepoint for emission by drivers
drm/tilcdc: Remove tilcdc_debugfs_cleanup()
drm/tegra: Remove tegra_debugfs_cleanup()
drm/sti: Remove drm_debugfs_remove_files() calls
drm/radeon: Remove drm_debugfs_remove_files() call
drm/omap: Remove omap_debugfs_cleanup()
drm/hdlcd: Remove hdlcd_debugfs_cleanup()
drm/etnaviv: Remove etnaviv_debugfs_cleanup()
drm/etnaviv: allow build with COMPILE_TEST
drm/amd/amdgpu: Remove drm_debugfs_remove_files() call
drm/prime: Clarify DMA-BUF/GEM Object lifetime
drm/ttm: Make sure BOs being swapped out are cacheable
drm/atomic: Remove drm_atomic_debugfs_cleanup()
drm: drm_minor_register(): Clean up debugfs on failure
drm: debugfs: Remove all files automatically on cleanup
drm/fourcc: add vivante tiled layout format modifiers
drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F
drm/edid: Set AVI infoframe Q even when QS=0
drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range()
...
time instead of waiting for the connector status change.
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Merge tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux into drm-next
Contains a single patch to create the fbdev at driver's registration
time instead of waiting for the connector status change.
* tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux:
drm/atmel-hlcdc: Rework the fbdev creation logic
- Add missing selection of VIDEOMODE_HELPERS in Kconfig, since ZTE DRM
driver uses drm_display_mode_to_videomode().
- Enable HDMI audio support through SPDIF interface based on generic
hdmi-audio-codec driver.
- Enable VOU VL (Video Layer) to support overlay plane with scaling
function.
- Refine zx_vou driver a bit and then add TV Encoder output device
support.
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Merge tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into drm-next
ZTE DRM driver updates for 4.11:
- Add missing selection of VIDEOMODE_HELPERS in Kconfig, since ZTE DRM
driver uses drm_display_mode_to_videomode().
- Enable HDMI audio support through SPDIF interface based on generic
hdmi-audio-codec driver.
- Enable VOU VL (Video Layer) to support overlay plane with scaling
function.
- Refine zx_vou driver a bit and then add TV Encoder output device
support.
[airlied: fixup plane format change]
* tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
drm: zte: add tvenc driver support
dt: add bindings for ZTE tvenc device
drm: zte: add function to configure vou_ctrl dividers
drm: zte: move struct vou_inf into zx_vou driver
drm: zte: add interlace mode support
drm: zte: add overlay plane support
drm: zte: add .atomic_disable hook to disable graphic layer
drm: zte: make zx_plane accessible from zx_vou driver
drm: zte: support hdmi audio through spdif
drm: zte: select VIDEOMODE_HELPERS in Kconfig
Updated pull request after I pulled first time :)
* 'drm-intel-next' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915: Pevent copying uninitialised garbage into vma->ggtt_view
