Make drm_fb_helper_initial_config() return an int rather than a bool so
that the error can be properly propagated. While at it, update drivers
to propagate errors further rather than just ignore them.

v2:
- cirrus: No cleanup is required, the top-level cirrus_driver_load()
  will do it as part of cirrus_driver_unload() in its cleanup path.
Reported-by: NFengguang Wu <fengguang.wu@intel.com>

Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NPatrik Jakobsson <patrik.r.jakobsson@gmail.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>
[danvet: Squash in simplification patch from kbuild.]
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

commit 765d5b9c ("fbdev: fbcon: select VT_HW_CONSOLE_BINDING")
made FRAMEBUFFER_CONSOLE always select VT_HW_CONSOLE_BINDING, but forgot
to remove

	select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE

from the individual drivers' sections that already did this before.

Remove it, also from new drivers.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

Daniel merged two things in 72a36970,
but he merged this code twice, Dan's static checker spotted it.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch change the calls throughout the amdkfd driver from the old kfd-->kgd
interface to the new kfd gtt sa inside amdkfd

v2: change the new call in sdma code that appeared because of the sdma feature
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch changes the calls to allocate the gart memory for amdkfd from the
old interface (radeon_sa) to the new one (kfd_gtt_sa)

The new gart sub-allocator is initialized with chunk size equal to 512 bytes.
This is because the KV MQD is 512 Bytes and most of the sub-allocations are
MQDs.
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch makes the gart's buffer size calculation more accurate. This buffer
is needed per GPU.

It takes into account maximum number of MQDs, runlist packets, kernel queues
and reserves 512KB for other misc allocations.

The total size is just shy of 4MB, for 32 processes and 128 queues per
process, which are the defaults for amdkfd kernel module parameters.
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds new kfd gtt sub-allocator functions that service the amdkfd
driver when it wants to use gtt memory.

The sub-allocator uses a bitmap to handle the memory area that was transferred
to it during init. It divides the memory area into chunks, according to chunk
size parameter.

The allocation function will allocate contiguous chunks from that memory area,
according to the requested size. If the requested size is smaller than the
chunk size, a single chunk will be allocated.

v2: Do some more verifications on parameters that are passed into
kfd_gtt_sa_init()
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds new fields to kfd_dev struct that are necessary for the new kfd
gtt sa module
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds the implementation of the gtt interface functions.

The allocate function will allocate a single bo, pin and map it to kernel
memory. It will return the gpu address and cpu ptr as arguments.

v2:

The bulk of the allocations in the GART is for MQDs. MQDs represent active
user-mode queues, which are on the current runlist. It is important to
remember that active queues doesn't necessarily mean scheduled/running
queues, especially if there is over-subscription of queues or more than a
single HSA process.

Because the scheduling of the user-mode queues is done by the CP firmware,
amdkfd doesn't have any indication if the queue is scheduled or not. If the
CP will try to schedule a queue, and its MQD is not present, this will
probably stuck the CP permanently, as it will load garbage from the GART
(the address of the MQD is given to the CP inside the runlist packet).

In addition, there are a couple of small allocations which also should
always be pinned - runlist packets (2 packets) and HPDs. runlist packets can
be quite large, depending on number of processes and queues.

This new allocate function represents the short/mid-term solution of limiting
the total memory consumption to around 4MB by default.

The long-term solution is to create a mechanism through which radeon/ttm can
ask amdkfd to clear GART/VRAM memory due to memory pressure.
Then, amdkfd will preempt the running queues and wait until the memory pressure
is over. After that, amdkfd will reschedule the queues.
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds two new functions to the kfd-->kgd interface:

init_gtt_mem_allocation, which allocate a large enough buffer on the amdkfd
needs, such as mqds, hpds, kernel queue, fence and runlists. This function
is only called once per GPU device. The size of the allocated buffer is
based on the maximum number of HSA processes and maximum number of queues
per HSA process (two amdkfd kernel module parameters).

free_gtt_mem, which frees a buffer that was allocated on the gart aperture.
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlexey Skidanov <Alexey.skidanov@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds to radeon the enablement of sdma preemption.
This is needed to support HWS of SDMA user-mode queues.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch passes the correct queue type to pqm_create_queue() instead of a
fixed KFD_QUEUE_TYPE_COMPUTE type.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds a check to the create queue ioctl path, which identifies SDMA
queue type that is sent by userspace.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds support for SDMA user-mode queues to the QCM - the Queue
management system that manages queues-per-device and queues-per-process.

v2: Remove calls to interface function that initializes sdma engines.

v3: Use the new names of some of the defines.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds support for SDMA mqd operations:
- init_mqd_sdma
- uninit_mqd_sdma
- load_mqd_sdma
- update_mqd_sdma
- destroy_mqd_sdma
- is_occupied_sdma

It also adds SDMA queue information to some private structures of amdkfd.

v3: Use the new names of some of the defines.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch implements the new SDMA interface functions. It also adds defines
and structures related to SDMA registers.

v2: Removed init_sdma_engines() from interface. Initialization is done in
radeon.

v3:
- Removed unused defines.
- Added SDMA_ prefix to defines that didn't have them.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch adds three new functions to the kfd2kgd interface:

- hqd_sdma_load() - Loads SDMA mqd to a H/W SDMA hqd slot. Used only in no HWS
                    mode.

- hqd_sdma_is_occupied() - Checks if an SDMA hqd slot is occupied. Used only
                           in no HWS mode.

- hqd_sdma_destroy() - Destructs and preempts the SDMA queue assigned to
                       that SDMA hqd slot. Used only in no HWS mode.

These functions are needed to support SDMA queues scheduling when using no HWS
mode (used for debug or bring-up).

v2: Removed init_sdma_engines() from interface. Initialization is done in
radeon.
Signed-off-by: NBen Goz <ben.goz@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

This patch splits the current kfd_get_process_device_data() to two
functions, one that specifically creates a pdd and another one which
just do lookup.

This is done to enhance the readability and maintainability of the code.
Signed-off-by: NAlexey Skidanov <Alexey.Skidanov@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

This patch adds the number of watch points to the node capabilities in the
topology module
Signed-off-by: NAlexey Skidanov <Alexey.Skidanov@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

We do not need to track the state of the IPU DI's clock flags by having
each display bridge calling back into imx-drm-core, and then back out
into ipuv3-crtc.c.

ipuv3-crtc can instead just scan the list of encoders to retrieve their
type, and build up a picture of which types of encoders are attached.
We can then use this information to configure the IPU DI clocking mode
without any uncertainty - if we have multiple bridges connected to the
same DI, if one of them requires a synchronous DI clock, that's what we
must use.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

We can use the DIV_ROUND_CLOSEST() macro when calculating the DI
clock divider, rounded to nearest int.
Suggested-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

This patch changes struct ipu_di_signal_cfg to use struct videomode
to define video timings and flags.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

The encoder ->prepare() and ->mode_set() methods need to use the
hw adjusted mode, not the original mode.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

Ask the IPU display interface, via ipu_di_adjust_videomode(), to
adjust a video mode to meet any DI restrictions. The function takes
a subsystem independent videomode, so the drm_display_mode must be
converted to videomode first, and then the adjusted mode converted
back to a drm_display_mode.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

Add conversion from drm_display_mode to videomode.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

h_total and v_total were calculated in ipu_di_init_sync_panel()
but never actually used. Remove.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

On some monitors, high resolution modes are not working, exhibiting
pixel column truncation problems (for example, 1280x1024 displays as
1280x1022).

The function ipu_di_adjust_videomode() aims to fix these issues by
adjusting a passed videomode to IPU restrictions. The function can
be called from the drm_crtc_helper_funcs->mode_fixup() methods.
Signed-off-by: NJiada Wang <jiada_wang@mentor.com>
Signed-off-by: NDeepak Das <deepak_das@mentor.com>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

To build the rockchip dw_hdmi driver as a module, the
rockchip_drm_encoder_get_mux_id and rockchip_drm_crtc_mode_config
functions need to be exported.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

Otherwise a spurious interrupt might trigger (and crash) the interrupt handler
before probing finished.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

Rockchip RK3288 hdmi is compatible with dw_hdmi
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

RK3288 HDMI will not work without the spare bit of
HDMI_PHY_CONF0 enable
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

HDMI_IH_I2CMPHY_STAT0 is a clear on write register, which indicates i2cm
operation status(i2c transfer done or error), every hdmi phy register
configuration must check this register to make sure the configuration
has complete. But the indication bit should be cleared after check, otherwise
the corresponding bit will hold on forever, this may give a wrong signal for
next check.
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

some platform may not support all the display mode,
add mode_valid interface check it
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

On rockchip rk3288, only word(32-bit) accesses are
permitted for hdmi registers.  Byte width accesses (writeb,
readb) generate an imprecise external abort.
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

the original imx hdmi driver is under drm/imx/,
which depends on imx-drm, so move the imx hdmi
driver out to drm/bridge and rename it to dw_hdmi
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

hdmi phy configuration is platform specific, which can be adjusted
according to the board to get the best SI
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

IMX6 and Rockchip RK3288 and JZ4780 (Ingenic Xburst/MIPS)
use the interface compatible Designware HDMI IP, but they
also have some lightly differences, such as phy pll configuration,
register width, 4K support, clk useage, and the crtc mux configuration
is also platform specific.

To reuse the imx hdmi driver, convert it to drm_bridge

handle encoder in imx-hdmi_pltfm.c, as most of the encoder
operation are platform specific such as crtc select and
panel format set

This patch depends on Russell King's patch:
 drm: imx: convert imx-drm to use the generic DRM OF helper
 http://driverdev.linuxdriverproject.org/pipermail/driverdev-devel/2014-July/053484.htmlSigned-off-by: NAndy Yan <andy.yan@rock-chips.com>
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

drm driver may probe before the i2c bus, so the driver should
defer probing until it is available
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Reviewed-by: NDaniel Kurtz <djkurtz@chromium.org>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>