Commit graph

87 commits

Author SHA1 Message Date
Thomas Zimmermann
f2fa5a99ca drm/ast: Convert ast to SHMEM
Replace GEM VRAM helpers with GEM SHMEM helpers in ast. Avoids OOM
errors when allocating video memory. Also adds support for dma-buf
functionality.

Aspeed display hardware supports display resolutions of FullHD and
higher at 32-bit pixel depth. But the amount of video memory is in
the range of 8 MiB to 32 MiB, which adds constraints to the actually
available resolutions. As atomic modesetting with VRAM helpers
requires double buffering in video memory, ast fails to pageflip
in some configurations. For example, FullHD with an active cursor
plane does not work on devices with 16 MiB of video memory.

Resolve this problem by converting the ast driver to GEM SHMEM helpers.
Keep the buffer objects in system memory and copy to video memory
on pageflips via shadow-plane helpers. Userspace used to require shadow
planes for decent performance, but that's now provided by the driver.
To replace the memory management, the patch also implements damage
handling for the primary plane.

With GEM SHMEM helpers, dma-buf import and export is now supported
by ast. This allows easier screen mirroring across devices or with
an Aspeed-based BMC. A corresponding feature request is available
at [1].

v2:
	* fix typos in commit message (Jocelyn)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Tested-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/dri-devel/20220901124451.2523077-1-oushixiong@kylinos.cn/ # [1]
Link: https://patchwork.freedesktop.org/patch/msgid/20221013112923.769-8-tzimmermann@suse.de
2022-10-16 11:16:50 +02:00
Thomas Zimmermann
7f35680ada drm/ast: Support multiple outputs
Systems with AST graphics can have multiple output; typically VGA
plus some other port. Record detected output chips in a bitmask and
initialize each output on its own.

Assume a VGA output by default and use SIL164 and DP501 if available.
For ASTDP assume that it can run in parallel with VGA.

Tested on AST2100.

v3:
	* define a macro for each BIT(ast_tx_chip) (Patrik)
v2:
	* make VGA/SIL164/DP501 mutually exclusive

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Fixes: a59b026419 ("drm/ast: Initialize encoder and connector for VGA in helper function")
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220607092008.22123-2-tzimmermann@suse.de
2022-06-08 13:16:15 +02:00
Thomas Zimmermann
f870231fdd drm/ast: Protect concurrent access to I/O registers with lock
Add a mutex lock to protect concurrent access to I/O registers
against each other. This happens between invocation of commit-
tail functions and get-mode operations. Both with use the CRTC
index register AST_IO_CRTC_PORT. Concurrent access can lead to
failed mode-setting operations.

v2:
	* fix typo in commit description (Jocelyn)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reported-by: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220502142514.2174-3-tzimmermann@suse.de
2022-05-05 09:18:32 +02:00
KuoHsiang Chou
594e9c04b5 drm/ast: Create the driver for ASPEED proprietory Display-Port
V1:
1. The MCU FW controling ASPEED DP is loaded by BMC boot loader.
2. Driver starts after CR[3:1] == 111b that indicates Tx is ASTDP,
   and CRD1[5] has been asserted by BMVC boot loader.
3. EDID is prioritized by DP monitor.
4. DP's EDID has high priority to decide resolution supporting.

V2:
Modules description:
1. ASTDP (ASPEED DisplayPort) is controlled by dedicated
   AST-MCU (ASPEED propriatary MCU).
2. MCU is looping in charged of HPD, Read EDID, Link Training with
   DP sink.
3. ASTDP and AST-MUC reside in BMC (Baseboard Management controller)
   addressing-space.
4. ASPEED DRM driver requests MCU to get HPD and EDID by CR-scratched
   register.

Booting sequence:
1. Check if TX is ASTDP					// ast_dp_launch()
2. Check if DP-MCU FW has loaded					// ast_dp_launch()
3. Read EDID					// ast_dp_read_edid()
4. Resolution switch					// ast_dp_SetOutput()

V3:
1. Remove unneeded semicolon.
2. Apply to git://anongit.freedesktop.org/drm/drm, instead of
   git://anongit.freedesktop.org/drm/drm-misc
3. Resolve auto build test WARNINGs on V1 patch.

V4:
1. Sync code-base with kernel 5.17_rc6
2. Remove the define of DPControlPower, because DP chips need to be
   powered on to be used.
3. Remove the switches of PHY and Display from EDID procedure.
4. Revise increaing delay to fixed delay, because this version kernel
   doesn't detect minitor consistenntly.
5. Create clean-up code used for reset of power state on errors with
   -EIO manner.
6. Revise the DP detection by TX type and its DP-FW status during
   booting and resume.
7. Correct the CamelCase Style.
8. Use register reading while needing, and remove to hold full
   register.
9. Instead of 'u8', revise to 'bool' on swwitch of PHY and video.
10.Correct typo
11.Remove the duplicated copy of TX definition.
12.Use EDID_LENGTH as the constant of 128.

Signed-off-by: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220428075603.20904-1-kuohsiang_chou@aspeedtech.com
2022-05-03 16:04:03 +02:00
KuoHsiang Chou
59a39fcc21 drm/ast: Enable the supporting of wide screen on AST2600
Enable the supporting of wide sscreen on AST2600, so that the resolution
of 16:9 and 16:10 are able to be selected on Display Settings.

Signed-off-by: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20211229082749.5415-1-kuohsiang_chou@aspeedtech.com
2022-01-06 10:02:07 +01:00
KuoHsiang Chou
f34bf652d6 drm/ast: Disable fast reset after DRAM initial
[Bug][AST2500]

V1:
When AST2500 acts as stand-alone VGA so that DRAM and DVO initialization
have to be achieved by VGA driver with P2A (PCI to AHB) enabling.
However, HW suggests disable Fast reset mode after DRAM initializaton,
because fast reset mode is mainly designed for ARM ICE debugger.
Once Fast reset is checked as enabling, WDT (Watch Dog Timer) should be
first enabled to avoid system deadlock before disable fast reset mode.

V2:
Use to_pci_dev() to get revision of PCI configuration.

V3:
If SCU00 is not unlocked, just enter its password again.
It is unnecessary to clear AHB lock condition and restore WDT default
setting again, before Fast-reset clearing.

V4:
repatch after "error : could not build fake ancestor" resolved.

V5:
Since CVE_2019_6260 item3, Most of AST2500 have disabled P2A(PCIe to AMBA).
However, for backward compatibility, some patches about P2A, such as items
of v5.2 and v5.3, are considered to be upstreamed with comments.
1. Add define macro to improve source readability.
ast_drv.h, ast_main.c, ast_post.c
2. Add comment about "Fast restet" is enabled for ARM-ICE debugger
ast_post.c
3. Add comment about Reset USB port to patch USB unknown device issue
ast_post.c

Signed-off-by: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210709080900.4056-1-kuohsiang_chou@aspeedtech.com
2021-07-20 11:19:57 +02:00
Thomas Zimmermann
0ecb51824e drm/ast: Remove reference to struct drm_device.pdev
Using struct drm_device.pdev is deprecated. Upcast with to_pci_dev()
from struct drm_device.dev to get the PCI device structure.

v9:
	* fix remaining pdev references

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Fixes: ba4e0339a6 ("drm/ast: Fixed CVE for DP501")
Cc: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-2-tzimmermann@suse.de
2021-04-29 21:19:10 +02:00
KuoHsiang Chou
ba4e0339a6 drm/ast: Fixed CVE for DP501
[Bug][DP501]
If ASPEED P2A (PCI to AHB) bridge is disabled and disallowed for
CVE_2019_6260 item3, and then the monitor's EDID is unable read through
Parade DP501.
The reason is the DP501's FW is mapped to BMC addressing space rather
than Host addressing space.
The resolution is that using "pci_iomap_range()" maps to DP501's FW that
stored on the end of FB (Frame Buffer).
In this case, FrameBuffer reserves the last 2MB used for the image of
DP501.

Signed-off-by: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421085859.17761-1-kuohsiang_chou@aspeedtech.com
2021-04-27 14:12:34 +02:00
Takashi Iwai
9ea172a9a3 drm/ast: Fix missing conversions to managed API
The commit 7cbb93d898 ("drm/ast: Use managed pci functions")
converted a few PCI accessors to the managed API and dropped the
manual pci_iounmap() calls, but it seems to have forgotten converting
pci_iomap() to the managed one.  It resulted in the leftover resources
after the driver unbind.  Let's fix them.

Fixes: 7cbb93d898 ("drm/ast: Use managed pci functions")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421170458.21178-1-tiwai@suse.de
2021-04-26 19:53:58 +02:00
Thomas Zimmermann
46fb883c3d drm/ast: Remove references to struct drm_device.pdev
Using struct drm_device.pdev is deprecated. Convert ast to struct
drm_device.dev. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201201103542.2182-4-tzimmermann@suse.de
2021-01-06 15:38:30 +01:00
KuoHsiang Chou
f9bd00e0ea drm/ast: Create chip AST2600
[New] Support AST2600

Signed-off-by: KuoHsiang Chou <kuohsiang_chou@aspeedtech.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201109093812.161483-1-kuohsiang_chou@aspeedtech.com
2020-11-10 08:57:24 +01:00
Daniel Vetter
70a59dd829 drm/<drivers>: Constify struct drm_driver
Only the following drivers aren't converted:
- amdgpu, because of the driver_feature mangling due to virt support.
  Subsequent patch will address this.
- nouveau, because DRIVER_ATOMIC uapi is still not the default on the
  platforms where it's supported (i.e. again driver_feature mangling)
- vc4, again because of driver_feature mangling
- qxl, because the ioctl table is somewhere else and moving that is
  maybe a bit too much, hence the num_ioctls assignment prevents a
  const driver structure.
- arcpgu, because that is stuck behind a pending tiny-fication series
  from me.
- legacy drivers, because legacy requires non-const drm_driver.

Note that for armada I also went ahead and made the ioctl array const.

Only cc'ing the driver people who've not been converted (everyone else
is way too much).

v2: Fix one misplaced const static, should be static const (0day)

v3:
- Improve commit message (Sam)

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: kernel test robot <lkp@intel.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: virtualization@lists.linux-foundation.org
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: nouveau@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201104100425.1922351-5-daniel.vetter@ffwll.ch
2020-11-06 10:31:26 +01:00
Dave Airlie
ce5c207c6b Linux 5.9-rc4
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Merge tag 'v5.9-rc4' into drm-next

Backmerge 5.9-rc4 as there is a nasty qxl conflict
that needs to be resolved.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-09-08 14:41:40 +10:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Thomas Zimmermann
cff0adca1e drm/ast: Managed device release
This turns the ast's device cleanup code into a managed release helper
function. Note that the code uses devres helpers. The release function
switches the device back to VGA mode and therefore runs during HW device
cleanup; not at DRM device cleanup.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-10-tzimmermann@suse.de
2020-08-03 09:05:00 +02:00
Thomas Zimmermann
4bc85b82c8 drm/ast: Manage release of firmware backup memory
The ast driver keeps a backup copy of the DP501 encoder's firmware. This
patch adds managed release of the allocated memory.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-9-tzimmermann@suse.de
2020-08-03 09:04:44 +02:00
Thomas Zimmermann
2c0b6566d6 drm/ast: Managed release of ast firmware
The ast driver loads firmware for the DP501 display encoder. The
patch replaces the removal code with a managed release function.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-8-tzimmermann@suse.de
2020-08-03 09:04:37 +02:00
Thomas Zimmermann
e0f5a738cf drm/ast: Embed struct drm_device in struct ast_private
Turns struct ast_private into a subclass of struct drm_device by
embedding the latter. This allows for using DRM's managed device
allocation.

The use of struct drm_device.dev_private is deprecated. The patch
converts the last remaining users to to_ast_private().

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-7-tzimmermann@suse.de
2020-08-03 09:04:28 +02:00
Thomas Zimmermann
fbe01716ed drm/ast: Replace driver load/unload functions with device create/destroy
The ast driver's load and unload functions are left-overs from when
struct drm_driver.load/unload was still in use. The PCI probe helper
allocated the DRM device and ran load to initialize it.

This patch replaces this code with device create and destroy. The
main difference is that the device's create function allocates the
DRM device and ast structures in the same place. This will be required
for switching ast to managed allocations.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200730135206.30239-4-tzimmermann@suse.de
2020-08-03 09:04:01 +02:00
Thomas Zimmermann
03ba7e00f8 drm/ast: Use managed MM initialization
Cleaning up ast's MM code with ast_mm_fini() resets the write-combine
flags on the VRAM I/O memory. Drop ast_mm_fini() in favor of an auto-
release callback. Releasing the device also executes the callback.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-7-tzimmermann@suse.de
2020-07-20 09:16:23 +02:00
Thomas Zimmermann
244d012801 drm/ast: Initialize DRAM type before posting GPU
Posting the GPU requires the correct DRAM type to be stored in
struct ast_private. Therefore first initialize the DRAM info and
then post the GPU. This restores the original order of instructions
in this function.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Fixes: bad09da6de ("drm/ast: Fixed vram size incorrect issue on POWER")
Cc: Joel Stanley <joel@jms.id.au>
Cc: Y.C. Chen <yc_chen@aspeedtech.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: "Y.C. Chen" <yc_chen@aspeedtech.com>
Cc: <stable@vger.kernel.org> # v4.11+
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-6-tzimmermann@suse.de
2020-07-20 09:16:15 +02:00
Thomas Zimmermann
0149e7805b drm/ast: Move VRAM size detection to ast_mm.c
VRAM size detection is only relevant to the memory management. Move
the code into ast_mm.c.

While at it, rename the function to ast_get_vram_size(). The function
argument's type is now struct ast_private. The result is stored in a
local variable and not in struct ast_private any longer.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-5-tzimmermann@suse.de
2020-07-20 09:16:11 +02:00
Thomas Zimmermann
e6949ff3ca drm/ast: Initialize mode setting in ast_mode_config_init()
There's modesetting init code in ast_main.c. Move it to ast_mode.c and
merge it with the modesetting init code in ast_mode_init(). The result
is ast_mode_config_init(), which initalizes the whole modesetting.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200702115029.5281-15-tzimmermann@suse.de
2020-07-07 11:12:06 +02:00
Thomas Zimmermann
1728bf6402 drm/ast: Use managed mode-config init
Using drmm_mode_config_init() sets up managed release of modesetting
resources. The existing modesetting's finalizer is empty, so remove it.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200702115029.5281-14-tzimmermann@suse.de
2020-07-07 11:12:03 +02:00
Thomas Zimmermann
1a19b4cb16 drm/ast: Use per-device logging macros
Converts the ast driver to drm_info(), drm_err() and drm_WARN_*(). No
functional changes are made.

v2:
	* also convert WARN_*() macros

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200617080340.29584-5-tzimmermann@suse.de
2020-06-22 13:40:33 +02:00
Thomas Zimmermann
fa7dbd7688 drm/ast: Upcast from DRM device to ast structure via to_ast_private()
All upcasting from struct drm_device to struct ast_private is now
performed via to_ast_private(). Using struct drm_device.dev_private
is deprecated. The ast variable in ast_crtc_helper_atomic_check() is
unused, so removed it.

v2:
	* fix typo in commit message

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200617080340.29584-4-tzimmermann@suse.de
2020-06-22 13:40:33 +02:00
Thomas Zimmermann
05f13f5b59 drm/ast: Remove unused code paths for AST 1180
The ast driver contains code paths for AST 1180 chips. The chip is not
supported and the rsp code has never been tested. Simplify the driver by
removing the AST 1180 code.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200617080340.29584-2-tzimmermann@suse.de
2020-06-22 13:38:32 +02:00
Daniel Vetter
7cbb93d898 drm/ast: Use managed pci functions
Allows us to remove a bit of cleanup code.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Emil Velikov <emil.velikov@collabora.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Y.C. Chen" <yc_chen@aspeedtech.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-58-daniel.vetter@ffwll.ch
2020-06-16 13:55:36 +02:00
Thomas Zimmermann
a4cbf268af drm/ast: Set up fbdev after registering device; remove error checks
Generic fbdev support is a DRM client. Set it up after registering
the new DRM device. Remove the error checks as the driver's probe
function should not depend on a DRM client's state.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200408082641.590-2-tzimmermann@suse.de
2020-04-08 16:24:23 +02:00
Thomas Zimmermann
80f7c3f776 drm/vram: Add helpers to validate a display mode's memory requirements
Devices with low amount of dedicated video memory may not be able
to use all possible display modes, as the framebuffers may not fit
into VRAM. The new helper function drm_vram_helper_mode_valid()
implements a simple test to sort out all display modes that can
not be used in any case. Drivers should call this function from
struct drm_mode_config_funcs.mode_valid.

The functionality was originally implemented by the ast driver, which
is being converted as well.

v2:
	* WARN_ON if VRAM memory manager has not been initialized
	* documentation fixes
	* unexported drm_vram_helper_mode_valid_internal()

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200203155258.9346-2-tzimmermann@suse.de
2020-02-06 10:32:54 +01:00
Thomas Zimmermann
4961eb60f1 drm/ast: Enable atomic modesetting
This commit sets the remaining atomic-modesetting helpers and the flag
DRIVER_ATOMIC. Legacy cursor functions are removed in favor of the cursor
plane. For power management, atomic helpers replace the indvidual
operations that the driver currently runs.

Atomic modesetting is enabled with this commit.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107083404.6852-10-tzimmermann@suse.de
2019-11-08 11:04:51 +01:00
Thomas Zimmermann
9253f830c9 drm/ast: Check video-mode requirements against VRAM size
Each video mode's primary plane requires a minimum amount of video
memory. For double buffering, this is at most half the available
VRAM. Check this constraint.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107083404.6852-3-tzimmermann@suse.de
2019-11-08 11:02:48 +01:00
Thomas Zimmermann
5a1505e7e6 drm/ast: Remove last traces of struct ast_gem_object
The ast driver has switched to struct drm_vram_gem_object a while ago.
This patch removes a function and forward declaration that were forgotten
before.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107083404.6852-2-tzimmermann@suse.de
2019-11-08 11:02:40 +01:00
Maxime Ripard
4092de1ba3
Merge drm/drm-next into drm-misc-next
We haven't done any backmerge for a while due to the merge window, and it
starts to become an issue for komeda. Let's bring 5.4-rc1 in.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
2019-10-03 16:38:50 +02:00
Linus Torvalds
574cc45397 drm main pull for 5.4-rc1
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Merge tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "This is the main pull request for 5.4-rc1 merge window. I don't think
  there is anything outstanding so next week should just be fixes, but
  we'll see if I missed anything. I landed some fixes earlier in the
  week but got delayed writing summary and sending it out, due to a mix
  of sick kid and jetlag!

  There are some fixes pending, but I'd rather get the main merge out of
  the way instead of delaying it longer.

  It's also pretty large in commit count and new amd header file size.
  The largest thing is four new amdgpu products (navi12/14, arcturus and
  renoir APU support).

  Otherwise it's pretty much lots of work across the board, i915 has
  started landing tigerlake support, lots of icelake fixes and lots of
  locking reworking for future gpu support, lots of header file rework
  (drmP.h is nearly gone), some old legacy hacks (DRM_WAIT_ON) have been
  put into the places they are needed.

  uapi:
   - content protection type property for HDCP

  core:
   - rework include dependencies
   - lots of drmP.h removals
   - link rate calculation robustness fix
   - make fb helper map only when required
   - add connector->DDC adapter link
   - DRM_WAIT_ON removed
   - drop DRM_AUTH usage from drivers

  dma-buf:
   - reservation object fence helper

  dma-fence:
   - shrink dma_fence struct
   - merge signal functions
   - store timestamps in dma_fence
   - selftests

  ttm:
   - embed drm_get_object struct into ttm_buffer_object
   - release_notify callback

  bridges:
   - sii902x - audio graph card support
   - tc358767 - aux data handling rework
   - ti-snd64dsi86 - debugfs support, DSI mode flags support

  panels:
   - Support for GiantPlus GPM940B0, Sharp LQ070Y3DG3B, Ortustech
     COM37H3M, Novatek NT39016, Sharp LS020B1DD01D, Raydium RM67191, Boe
     Himax8279d, Sharp LD-D5116Z01B
   - TI nspire, NEC NL8048HL11, LG Philips LB035Q02, Sharp LS037V7DW01,
     Sony ACX565AKM, Toppoly TD028TTEC1 Toppoly TD043MTEA1

  i915:
   - Initial tigerlake platform support
   - Locking simplification work, general all over refactoring.
   - Selftests
   - HDCP debug info improvements
   - DSI properties
   - Icelake display PLL fixes, colorspace fixes, bandwidth fixes, DSI
     suspend/resume
   - GuC fixes
   - Perf fixes
   - ElkhartLake enablement
   - DP MST fixes
   - GVT - command parser enhancements

  amdgpu:
   - add wipe memory on release flag for buffer creation
   - Navi12/14 support (may be marked experimental)
   - Arcturus support
   - Renoir APU support
   - mclk DPM for Navi
   - DC display fixes
   - Raven scatter/gather support
   - RAS support for GFX
   - Navi12 + Arcturus power features
   - GPU reset for Picasso
   - smu11 i2c controller support

  amdkfd:
   - navi12/14 support
   - Arcturus support

  radeon:
   - kexec fix

  nouveau:
   - improved display color management
   - detect lack of GPU power cables

  vmwgfx:
   - evicition priority support
   - remove unused security feature

  msm:
   - msm8998 display support
   - better async commit support for cursor updates

  etnaviv:
   - per-process address space support
   - performance counter fixes
   - softpin support

  mcde:
   - DCS transfers fix

  exynos:
   - drmP.h cleanup

  lima:
   - reduce logging

  kirin:
   - misc clenaups

  komeda:
   - dual-link support
   - DT memory regions

  hisilicon:
   - misc fixes

  imx:
   - IPUv3 image converter fixes
   - 32-bit RGB V4L2 pixel format support

  ingenic:
   - more support for panel related cases

  mgag200:
   - cursor support fix

  panfrost:
   - export GPU features register to userspace
   - gpu heap allocations
   - per-fd address space support

  pl111:
   - CLD pads wiring support removed from DT

  rockchip:
   - rework to use DRM PSR helpers
   - fix bug in VOP_WIN_GET macro
   - DSI DT binding rework

  sun4i:
   - improve support for color encoding and range
   - DDC enabled GPIO

  tinydrm:
   - rework SPI support
   - improve MIPI-DBI support
   - moved to drm/tiny

  vkms:
   - rework CRC tracking

  dw-hdmi:
   - get_eld and i2s improvements

  gm12u320:
   - misc fixes

  meson:
   - global code cleanup
   - vpu feature detect

  omap:
   - alpha/pixel blend mode properties

  rcar-du:
   - misc fixes"

* tag 'drm-next-2019-09-18' of git://anongit.freedesktop.org/drm/drm: (2112 commits)
  drm/nouveau/bar/gm20b: Avoid BAR1 teardown during init
  drm/nouveau: Fix ordering between TTM and GEM release
  drm/nouveau/prime: Extend DMA reservation object lock
  drm/nouveau: Fix fallout from reservation object rework
  drm/nouveau/kms/nv50-: Don't create MSTMs for eDP connectors
  drm/i915: Use NOEVICT for first pass on attemping to pin a GGTT mmap
  drm/i915: to make vgpu ppgtt notificaiton as atomic operation
  drm/i915: Flush the existing fence before GGTT read/write
  drm/i915: Hold irq-off for the entire fake lock period
  drm/i915/gvt: update RING_START reg of vGPU when the context is submitted to i915
  drm/i915/gvt: update vgpu workload head pointer correctly
  drm/mcde: Fix DSI transfers
  drm/msm: Use the correct dma_sync calls harder
  drm/msm: remove unlikely() from WARN_ON() conditions
  drm/msm/dsi: Fix return value check for clk_get_parent
  drm/msm: add atomic traces
  drm/msm/dpu: async commit support
  drm/msm: async commit support
  drm/msm: split power control from prepare/complete_commit
  drm/msm: add kms->flush_commit()
  ...
2019-09-19 16:24:24 -07:00
Thomas Zimmermann
6b5ce4a1fb drm/vram: Move VRAM memory manager to GEM VRAM implementation
The separation between GEM VRAM objects and the memory manager is
artificial, as they are only used with each other. Copying both
implementations into the same file is a first step to simplifying
the code.

This patch only moves code without functional changes.

v3:
	* update to use dev->vma_offset_manager
v2:
	* update for debugfs support
	* typos in commit message

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911110910.30698-2-tzimmermann@suse.de
2019-09-12 19:54:04 +02:00
Y.C. Chen
05b439711f drm/ast: Fixed reboot test may cause system hanged
There is another thread still access standard VGA I/O while loading drm driver.
Disable standard VGA I/O decode to avoid this issue.

Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Reviewed-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1523410059-18415-1-git-send-email-yc_chen@aspeedtech.com
2019-08-15 13:04:57 +10:00
Gerd Hoffmann
0e580c6d7d drm/vram: use embedded gem object
Drop drm_gem_object from drm_gem_vram_object, use the
ttm_buffer_object.base instead.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-3-kraxel@redhat.com
2019-08-06 08:21:53 +02:00
Sam Ravnborg
fbbbd1608b drm/ast: drop use of drmP.h
Drop use of the deprecated drmP.h header file.
While touching the files divide include files in blocks
and sort the include files in the individual blocks.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Sam Bobroff <sbobroff@linux.ibm.com>
Cc: YueHaibing <yuehaibing@huawei.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: "Y.C. Chen" <yc_chen@aspeedtech.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190630061922.7254-33-sam@ravnborg.org
2019-07-15 18:11:31 +02:00
Thomas Zimmermann
8a99de3dc0 drm/ast: Replace struct ast_fbdev with generic framebuffer emulation
This patch replaces ast's framebuffer console with DRM's generic
implememtation. All respective code is being removed from the driver.

The console is set up with a shadow buffer. The actual buffer object is
not permanently pinned in video ram, but just another buffer object that
the driver moves in and out of vram as necessary. The driver's function
ast_crtc_do_set_base() used to contain special handling for the framebuffer
console. With the new generic framebuffer, the driver does not need this
code an longer.

v2:
	* use drm_fb_helper_set_suspend_unlocked() in ast_drm_{thaw,freeze}()
	* dirty function no longer required

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/315835/
2019-07-09 10:25:12 +02:00
Thomas Zimmermann
5ed7191dd9 drm/ast: Replace struct ast_framebuffer with GEM framebuffer helpers
The ast driver's struct ast_framebuffer is a buffer object with GEM
interface. There are already GEM framebuffer helpers that implement
the same functionality. Convert ast to these.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190627173410.8300-1-tzimmermann@suse.de
2019-06-28 09:02:29 +02:00
Thomas Zimmermann
969562b2cd drm/ast: Convert AST driver to VRAM MM
The data structure |struct drm_vram_mm| and its helpers replace ast's
TTM-based memory manager. It's the same implementation; except for the
type names.

v4:
	* don't select DRM_TTM or DRM_VRAM_MM_HELPER
v3:
	* use drm_gem_vram_mm_funcs
	* convert driver to drm_device-based instance
v2:
	* implement ast_mmap() with drm_vram_mm_mmap()

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-11-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-15 16:17:07 +02:00
Thomas Zimmermann
5b3709793d drm/ast: Convert AST driver to |struct drm_gem_vram_object|
The data structure |struct drm_gem_vram_object| and its helpers replace
|struct ast_bo|. It's the same implementation; except for the type names.

v4:
	* cleanups from checkpatch.pl

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-10-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-15 16:17:07 +02:00
Thomas Zimmermann
376bc02da2 drm/ast: Replace ttm_bo_unref with ttm_bo_put
The function ttm_bo_put releases a reference to a TTM buffer object. The
function's name is more aligned to the Linux kernel convention of naming
ref-counting function _get and _put.

A call to ttm_bo_unref takes the address of the TTM BO object's pointer and
clears the pointer's value to NULL. This is not necessary in most cases and
sometimes even worked around by the calling code. A call to ttm_bo_put only
releases the reference without clearing the pointer.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-01-28 11:42:41 -05:00
Sam Bobroff
dc25ab0676 drm/ast: Fix incorrect free on ioregs
If the platform has no IO space, ioregs is placed next to the already
allocated regs. In this case, it should not be separately freed.

This prevents a kernel warning from __vunmap "Trying to vfree()
nonexistent vm area" when unloading the driver.

Fixes: 0dd68309b9 ("drm/ast: Try to use MMIO registers when PIO isn't supported")

Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-11-29 09:41:11 +10:00
Dave Airlie
3154b13371 Merge tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next
UAPI Changes:
- vc4: Allow userspace to dictate rendering order in submit_cl ioctl (Eric)

Cross-subsystem Changes:
- vboxvideo: One of Cihangir's patches applies to vboxvideo which is maintained
	     in staging

Core Changes:
- atomic_legacy_backoff is officially killed (Daniel)
- Extract drm_device.h (Daniel)
- Unregister drm device on unplug (Daniel)
- Rename deprecated drm_*_(un)?reference functions to drm_*_{get|put} (Cihangir)

Driver Changes:
- vc4: Error/destroy path cleanups, log level demotion, edid leak (Eric)
- various: Make various drm_*_funcs structs const (Bhumika)
- tinydrm: add support for LEGO MINDSTORMS EV3 LCD (David)
- various: Second half of .dumb_{map_offset|destroy} defaults set (Noralf)

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: Bhumika Goyal <bhumirks@gmail.com>
Cc: Cihangir Akturk <cakturk@gmail.com>
Cc: David Lechner <david@lechnology.com>
Cc: Noralf Trønnes <noralf@tronnes.org>

* tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc: (50 commits)
  drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset()
  drm/virtio: Use the drm_driver.dumb_destroy default
  drm/bochs: Use the drm_driver.dumb_destroy default
  drm/mgag200: Use the drm_driver.dumb_destroy default
  drm/exynos: Use .dumb_map_offset and .dumb_destroy defaults
  drm/msm: Use the drm_driver.dumb_destroy default
  drm/ast: Use the drm_driver.dumb_destroy default
  drm/qxl: Use the drm_driver.dumb_destroy default
  drm/udl: Use the drm_driver.dumb_destroy default
  drm/cirrus: Use the drm_driver.dumb_destroy default
  drm/tegra: Use .dumb_map_offset and .dumb_destroy defaults
  drm/gma500: Use .dumb_map_offset and .dumb_destroy defaults
  drm/mxsfb: Use .dumb_map_offset and .dumb_destroy defaults
  drm/meson: Use .dumb_map_offset and .dumb_destroy defaults
  drm/kirin: Use .dumb_map_offset and .dumb_destroy defaults
  drm/vc4: Continue the switch to drm_*_put() helpers
  drm/vc4: Fix leak of HDMI EDID
  dma-buf: fix reservation_object_wait_timeout_rcu to wait correctly v2
  dma-buf: add reservation_object_copy_fences (v2)
  drm/tinydrm: add support for LEGO MINDSTORMS EV3 LCD
  ...
2017-08-17 07:33:41 +10:00
Cihangir Akturk
1feba03f72 drm/ast: switch to drm_*_get(), drm_*_put() helpers
Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference()
and drm_*_unreference() helpers.

drm_*_reference() and drm_*_unreference() functions are just
compatibility alias for drm_*_get() and drm_*_put() and should not be
used by new code. So convert all users of compatibility functions to
use the new APIs.

Generated by: scripts/coccinelle/api/drm-get-put.cocci

Signed-off-by: Cihangir Akturk <cakturk@gmail.com>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1502454794-28558-5-git-send-email-cakturk@gmail.com
2017-08-11 11:38:47 -04:00
Egbert Eich
12f8030e05 drm/ast: Actually load DP501 firmware when required
The ast driver has a code to load the DP501 firmware, but it's never
used.  This patch implements its actual usage by requesting the
firmware on demand, and release the firmware at exit as well.

Also the path contains a few cleanups and makes relevant functions
static.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-02 12:13:16 +10:00
Egbert Eich
f3b91060b5 drm/ast: Free container instead of member in ast_user_framebuffer_destroy()
Technically freeing ast_fb->base is the same as freeing ast_fb as 'base'
the first member of the data structure.
Still this makes it cleaner.

Signed-off-by: Egbert Eich <eich@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-02 12:12:27 +10:00
Y.C. Chen
bad09da6de drm/ast: Fixed vram size incorrect issue on POWER
The default value of VGA scratch may incorrect.
Should initial h/w before get vram info.

Acked-by: Joel Stanley <joel@jms.id.au>
Tested-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-02-28 13:16:14 +10:00