Commit graph

707,780 commits

Author SHA1 Message Date
Christian König
7fd5e36cae drm/amd/sched: fix job tear down order v2
Move the trace before we signal the scheduler fence and drop the
scheduler fence reference directly before we free the job.

v2: keep extra s_fence reference

Signed-off-by: Christian König <[email protected]>
Reviewed-by: Liu, Monk <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:08 -04:00
Harish Kasiviswanathan
e1d515052f drm/amdgpu: Add amdgpu_find_mm_node()
Replace some commonly repeated code with a function.

v2: Use amdgpu_find_mm_node() in amdgpu_ttm_io_mem_pfn()

Signed-off-by: Harish Kasiviswanathan <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:08 -04:00
Harish Kasiviswanathan
1eca5a530d drm/amdgpu: Refactor amdgpu_move_blit
Add more generic function amdgpu_copy_ttm_mem_to_mem() that supports
arbitrary copy size, offsets and two BOs (source & dest.).

This is useful for KFD Cross Memory Attach feature where data needs to
be copied from BOs from different processes

v2: Add struct amdgpu_copy_mem and changed amdgpu_copy_ttm_mem_to_mem()
function parameters to use the struct

v3: Minor function name change

Signed-off-by: Harish Kasiviswanathan <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:07 -04:00
Andrey Grodzovsky
26eedf6dae drm/amdgpu: Fix extra call to amdgpu_ctx_put.
In amdgpu_cs_parser_init() in case of error handling
amdgpu_ctx_put() is called without setting p->ctx to NULL after that,
later amdgpu_cs_parser_fini() also calls amdgpu_ctx_put() again and
mess up the reference count.

Signed-off-by: Andrey Grodzovsky <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:06 -04:00
Tom St Denis
7d0a42823b drm/ttm: Fix unused variables with huge page support
Signed-off-by: Tom St Denis <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:06 -04:00
Christian König
1f7251b73e drm/amdgpu: add VRAM lost query
Allows userspace to figure out if VRAM was lost.

Signed-off-by: Christian König <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:05 -04:00
Christian König
7a0a48ddf6 drm/amdgpu: set -ECANCELED when dropping jobs
And return from the wait functions the fence error code.

Signed-off-by: Christian König <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:05 -04:00
Christian König
e55f2b646d drm/amdgpu: move the VRAM lost counter per context
Instead of per device track the VRAM lost per context and return ECANCELED
instead of ENODEV.

Signed-off-by: Christian König <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:04 -04:00
Christian König
14e47f93c5 drm/amdgpu: keep copy of VRAM lost counter in job
Instead of reading the current counter from fpriv.

Signed-off-by: Christian König <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:03 -04:00
Christian König
396bcb41e0 drm/amdgpu: partial revert VRAM lost handling v2
Keep blocking the CS, but revert everything else. Mapping BOs and info IOCTL
are harmless and can still happen even when VRAM content ist lost.

Signed-off-by: Christian König <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:03 -04:00
Christian König
6ed4e2e673 drm/ttm: add transparent huge page support for wc or uc allocations v2
Add a new huge page pool and try to allocate from it when it makes sense.

v2: avoid compound pages for now

Signed-off-by: Christian König <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:02 -04:00
Christian König
8593e9b85e drm/ttm: move more logic into ttm_page_pool_get_pages
Make it easier to add huge page pool.

Signed-off-by: Christian König <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:02 -04:00
Christian König
0284f1ead8 drm/ttm: add transparent huge page support for cached allocations v2
Try to allocate huge pages when it makes sense.

v2: avoid compound pages for now

Signed-off-by: Christian König <[email protected]>
Acked-by: Felix Kuehling <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:01 -04:00
Christian König
f4c809914a drm/ttm: don't use compound pages for now
We need to figure out first how to correctly map them into the CPU page tables.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=103138
Signed-off-by: Christian König <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:00 -04:00
Ken Wang
76d6172b6f drm/amdgpu: correct reference clock value on vega10
Old value from bringup was wrong.

Cc: [email protected]
Signed-off-by: Ken Wang <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:27:00 -04:00
Horace Chen
2dc8f81e4f drm/amdgpu: SR-IOV data exchange between PF&VF
SR-IOV need to exchange some data between PF&VF through shared VRAM

PF will copy some necessary firmware and information to the shared
VRAM. It also requires some information from VF. PF will send a
key through mailbox2 to help guest calculate checksum so that it can
verify whether the data is correct.

So check the data on the specified offset of the shared VRAM, if the
checksum is right, read values from it and write some VF information
next to the data from PF.

Signed-off-by: Horace Chen <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:59 -04:00
Andrey Grodzovsky
0ae94444c0 drm/amdgpu: Move old fence waiting before reservation lock is aquired v2
Helps avoiding deadlock during GPU reset.
Added mutex to amdgpu_ctx to preserve order of fences on a ring.

v2:
Put waiting logic in a function in a seperate function in amdgpu_ctx.c

Signed-off-by: Andrey Grodzovsky <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:59 -04:00
Andrey Grodzovsky
ad864d2438 drm/amdgpu: Refactor amdgpu_cs_ib_vm_chunk and amdgpu_cs_ib_fill.
This enables old fence waiting before reservation lock is aquired
which in turn is part of a bigger solution to deadlock happening
when gpu reset with VRAM recovery accures during intensive rendering.

Signed-off-by: Andrey Grodzovsky <[email protected]>
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:58 -04:00
Colin Ian King
f15507a1ac drm/amdgpu: make function uvd_v6_0_enc_get_destroy_msg static
The function uvd_v6_0_enc_get_destroy_msg is local to the source and
does not need to be in global scope, so make it static.

Cleans up sparse warning:
symbol 'uvd_v6_0_enc_get_destroy_msg' was not declared. Should it be
static?

Reviewed-by: Christian König <[email protected]>
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:57 -04:00
Rex Zhu
37a49343b4 drm/amd/pp: remove polaris10_smc/smumgr split.
move functions in polaris_smc.c to
polaris10_smumgr.c and make all functions in
polaris10_smumgr.c static.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:57 -04:00
Rex Zhu
4dddc212a3 drm/amd/pp: remove tonga_smc/smumgr split.
move functions in tonga_smc.c to tonga_smumgr.c
and make all functions in tonga_smumgr.c static.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:56 -04:00
Rex Zhu
907bfec7cc drm/amd/pp: remove iceland_smc/smumgr split.
move functions in iceland_smc.c to iceland_smumgr.c
and make all functions in iceland_smumgr.c static.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:55 -04:00
Rex Zhu
2e112b4ae3 drm/amd/pp: remove fiji_smc/smumgr split.
make all functions in fiji_smumgr.c static and
exported by pp_smumgr_func table.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:55 -04:00
Rex Zhu
9c4cd84f48 drm/amd/pp: rename ci_smc.c to ci_smumgr.c
for consistency.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:54 -04:00
Rex Zhu
202f5d6e1a drm/amdgpu: refine code delete duplicated error handling
in function amdgpu_ucode_init_bo, when failed, it will
set load_type to AMDGPU_FW_LOAD_DIRECT.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:53 -04:00
Rex Zhu
66f1376269 drm/amd/pp: move common function to smu7_smumgr.c
fiji and polaris can share same setup_pwr_virus
function.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:53 -04:00
Rex Zhu
26f527810b drm/amd/pp: implement function notify_cac_buffer_info on VI
Used for smu power logging.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:52 -04:00
Rex Zhu
52afb85e66 drm/amd/pp: implement function notify_cac_buffer_info on Vega
Used for smu power logging.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:51 -04:00
Rex Zhu
e83dcf1051 drm/amd/pp: add new function point in hwmgr.
used for notify SMU the allocated buffer address.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:51 -04:00
Rex Zhu
6ba7cf0d5c drm/amd/pp: export new smu messages for vega10
New messages for smu power logging.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Rex Zhu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:50 -04:00
Satyajit Sahu
f7c5798c6d drm/amd/powerplay: get the temperature on CZ
Setting the function pointer to the get the temperature on CZ.

Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Satyajit Sahu <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:50 -04:00
Alex Deucher
b285f1db6b drm/amdgpu: bump version for new AMDGPU_SCHED ioctl
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:49 -04:00
Andres Rodriguez
8bc4c256f4 drm/amdgpu: rename context priority levels
Don't leak implementation details about how each priority behaves to
usermode. This allows greater flexibility in the future.

Squash into c2636dc53a

Signed-off-by: Andres Rodriguez <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
2017-10-19 15:26:48 -04:00
Boris Brezillon
b9f19259b8 drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl
This ioctl will allow us to purge inactive userspace buffers when the
system is running out of contiguous memory.

For now, the purge logic is rather dumb in that it does not try to
release only the amount of BO needed to meet the last CMA alloc request
but instead purges all objects placed in the purgeable pool as soon as
we experience a CMA allocation failure.

Note that the in-kernel BO cache is always purged before the purgeable
cache because those objects are known to be unused while objects marked
as purgeable by a userspace application/library might have to be
restored when they are marked back as unpurgeable, which can be
expensive.

Signed-off-by: Boris Brezillon <[email protected]>
Signed-off-by: Eric Anholt <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-19 10:34:49 -07:00
Lucas Stach
06e733e41f drm/panel: simple: add Toshiba LT089AC19000
Only exposes a single mode and not a complete display timing, as
the datasheet is rather vague about the minimum/maximum values.

Signed-off-by: Lucas Stach <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-19 11:48:44 +02:00
Frank Binns
448956d619 dma-fence: remove duplicate word in comment
Signed-off-by: Frank Binns <[email protected]>
Reviewed-by: Chris Wilson <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-18 18:20:25 +02:00
Philipp Zabel
6c684e3b67 drm/panel: simple: add delays for Innolux AT043TN24
The delays between video data and backlight enable and between backlight
disable and end of video data are given as >= 160 ms in the datasheet.

Signed-off-by: Philipp Zabel <[email protected]>
Tested-by: Marco Franchi <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-18 13:53:04 +02:00
Philipp Zabel
6560279c8f drm/panel: simple: add bus flags for Innolux AT043TN24
For LCD interface controllers that support configuring polarity of
pixel clock and data enable signal, specify bus flags in the panel
descriptor.

Signed-off-by: Philipp Zabel <[email protected]>
Tested-by: Marco Franchi <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-18 13:53:03 +02:00
Philipp Zabel
a483159d2b drm/panel: simple: fix vertical timings for Innolux AT043TN24
The vsync length should be 10 lines, as specified in the data sheet.
This gets the actual refresh rate closer to nominal 60 Hz given the
9 MHz pixel clock.

Signed-off-by: Philipp Zabel <[email protected]>
Tested-by: Marco Franchi <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-18 13:53:02 +02:00
Daniel Vetter
84014b0a39 drm/atomic-helper: check that drivers call drm_crtc_vblank_off
At least when they have vblank support they need to call this, or the
vblank core will happily call into their crtc->enable_vblank callback
even when the crtc is off. Which leads to a boom when the clocks are
off on most hardware (besides the inevitable confusion in the
book-keeping).

The consistency checks in drm_vblank.c will then make sure that
vblank_off/on calls are balanced, and if drivers forget to re-enable
it all the commits will stall, so I think we're covered.

It'd be nice to be able to place this check outside of commit helpers,
but tha's not really possible (due to nonblocking commits and all
that). Placing it into atomic helpers should at least cover most
drivers.

Also note that vblank support is still optional (for virtual drivers,
which tend to not have this), check for that.

v2: Fixup the handling for vblank_put (Rob).

Cc: Rob Clark <[email protected]>
Tested-by: Rob Clark <[email protected]>
Cc: Ville Syrjälä <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-18 10:23:25 +02:00
Daniel Vetter
81a7bd4a3f drm: some KMS todo ideas
Inspired by discussions with Keith and Ville.

Cc: Ville Syrjälä <[email protected]>
Cc: Keith Packard <[email protected]>
Acked-by: Sean Paul <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-18 10:15:02 +02:00
Bjorn Helgaas
505a1b5717 vgaarb: Factor out EFI and fallback default device selection
The default VGA device is normally set in vga_arbiter_add_pci_device() when
we call it for the first enabled device that can be accessed with the
legacy VGA resources ([mem 0xa0000-0xbffff], etc.)

That default device can be overridden by an EFI device that owns the boot
framebuffer.  As a fallback, we can also select a VGA device that can't be
accessed via legacy VGA resources, or a VGA device that isn't even enabled.

Factor out this EFI and fallback selection from vga_arb_device_init() into
a separate vga_arb_select_default_device() function.  This doesn't change
any behavior, but it untangles the "bridge control possible" checking and
messages from the default device selection.

Tested-by: Zhou Wang <[email protected]>  # D05 Hisi Hip07, Hip08
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Reviewed-by: Daniel Axtens <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20171013034729.14630.30419.stgit@bhelgaas-glaptop.roam.corp.google.com
2017-10-18 10:04:56 +02:00
Bjorn Helgaas
a37c0f4895 vgaarb: Select a default VGA device even if there's no legacy VGA
Daniel Axtens reported that on the HiSilicon D05 board, the VGA device is
behind a bridge that doesn't support PCI_BRIDGE_CTL_VGA, so the VGA arbiter
never selects it as the default, which means Xorg auto-detection doesn't
work.

VGA is a legacy PCI feature: a VGA device can respond to addresses, e.g.,
[mem 0xa0000-0xbffff], [io 0x3b0-0x3bb], [io 0x3c0-0x3df], etc., that are
not configurable by BARs.  Consequently, multiple VGA devices can conflict
with each other.  The VGA arbiter avoids conflicts by ensuring that those
legacy resources are only routed to one VGA device at a time.

The arbiter identifies the "default VGA" device, i.e., a legacy VGA device
that was used by boot firmware.  It selects the first device that:

  - is of PCI_CLASS_DISPLAY_VGA,
  - has both PCI_COMMAND_IO and PCI_COMMAND_MEMORY enabled, and
  - has PCI_BRIDGE_CTL_VGA set in all upstream bridges.

Some systems don't have such a device.  For example, if a host bridge
doesn't support I/O space, PCI_COMMAND_IO probably won't be enabled for any
devices below it.  Or, as on the HiSilicon D05, the VGA device may be
behind a bridge that doesn't support PCI_BRIDGE_CTL_VGA, so accesses to the
legacy VGA resources will never reach the device.

This patch extends the arbiter so that if it doesn't find a device that
meets all the above criteria, it selects the first device that:

  - is of PCI_CLASS_DISPLAY_VGA and
  - has PCI_COMMAND_IO or PCI_COMMAND_MEMORY enabled

If it doesn't find even that, it selects the first device that:

  - is of class PCI_CLASS_DISPLAY_VGA.

Such a device may not be able to use the legacy VGA resources, but most
drivers can operate the device without those.  Setting it as the default
device means its "boot_vga" sysfs file will contain "1", which Xorg (via
libpciaccess) uses to help select its default output device.

This fixes Xorg auto-detection on some arm64 systems (HiSilicon D05 in
particular; see the link below).

It also replaces the powerpc fixup_vga() quirk, albeit with slightly
different semantics: the quirk selected the first VGA device we found, and
overrode that selection with any enabled VGA device we found.  If there
were several enabled VGA devices, the *last* one we found would become the
default.

The code here instead selects the *first* enabled VGA device we find, and
if none are enabled, the first VGA device we find.

Link: http://lkml.kernel.org/r/[email protected]
Tested-by: Daniel Axtens <[email protected]>       # arm64, ppc64-qemu-tcg
Tested-by: Zhou Wang <[email protected]>  # D05 Hisi Hip07, Hip08
Signed-off-by: Bjorn Helgaas <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Reviewed-by: Daniel Axtens <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20171013034721.14630.65913.stgit@bhelgaas-glaptop.roam.corp.google.com
2017-10-18 10:04:56 +02:00
Dan Carpenter
8b32948690 drm/bridge: adv7511: Fix a use after free
We free "edid", then use it again on the next line.

Fixes: 3b1b975003 ("drm: adv7511/33: add HDMI CEC support")
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Archit Taneja <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/20171017204343.zctliubjkq7imudi@mwanda
2017-10-18 09:38:43 +05:30
Jonathan Liu
aaddb6d22a drm/sun4i: Add support for A20 display pipeline components
The A20 display pipeline has 2 frontends, 2 backends, and 2 TCONs.
This patch adds support (or a compatible string in the frontend's
case) for these components.

The TCONs support directly outputting to CPU/RGB/LVDS LCD panels,
or it can output to HDMI via an on-chip HDMI controller, or
CVBS/YPbPr/VGA signals via on-chip TV encoders. These additional
encoders are not covered in this patch.

Signed-off-by: Jonathan Liu <[email protected]>
[[email protected]: Expand commit message]
Signed-off-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-17 19:49:17 +02:00
Chen-Yu Tsai
9a8187c003 drm/sun4i: Add support for A10 display pipeline components
The A10 display pipeline has 2 frontends, 2 backends, and 2 TCONs.
This patch adds support (or a compatible string in the frontend's
case) for these components.

The TCONs support directly outputting to CPU/RGB/LVDS LCD panels,
or it can output to HDMI via an on-chip HDMI controller, or
CVBS/YPbPr/VGA signals via on-chip TV encoders. These additional
encoders are not covered in this patch.

Signed-off-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-17 19:49:17 +02:00
Chen-Yu Tsai
7ea4291f9f drm/sun4i: hdmi: Support HDMI controller on A10
The HDMI controller in the A10 SoC is the same as the one currently
supported in the A10s. It has slightly different setup parameters.
Since these parameters are not thoroughly understood, we add support
for this variant by copying these parameters verbatim.

Signed-off-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-17 19:49:16 +02:00
Jonathan Liu
4bb206bf4d drm/sun4i: tcon: Add support for A10 TCON
The A10 has two TCONs that are similar to the ones found on other SoCs.
Like the A31, TCON0 has a register used to mux the TCON outputs to the
downstream encoders. The bit fields are slightly different.

Signed-off-by: Jonathan Liu <[email protected]>
[[email protected]: Reworked for A10 and fixed up commit message]
Signed-off-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-17 19:49:16 +02:00
Chen-Yu Tsai
f55c83d37b drm/sun4i: backend: Support output muxing
The backend has a mux to select the destination of the data to output
to. It can select the TCON or the frontends. On the A20, it includes
an option to output to the second TCON. This is not documented in the
user manual, but the vendor kernel uses it nevertheless, so the second
backend outputs to the second TCON.

Although the muxing can be changed on the fly, DRM needs to be able to
group a bunch of layers such that they get switched to another crtc
together. This is because the display backend does the layer compositing,
while the TCON generates the display timings. This constraint is not
supported by DRM.

Here we simply pair up backends and TCONs with the same ID.

Signed-off-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-10-17 19:49:15 +02:00
Maxime Ripard
ba19c53704 drm/sun4i: tcon: Move out the tcon0 common setup
Some channel0 setup has to be done, no matter what the output interface is
(RGB, CPU, LVDS). Move that code into a common function in order to avoid
duplication.

Reviewed-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Link: https://patchwork.freedesktop.org/patch/183100/
2017-10-17 19:49:14 +02:00