openwrt/staging/blogic.git
10 years agodrm/exynos/ipp: remove redundant messages
Andrzej Hajda [Thu, 3 Jul 2014 13:10:35 +0000 (15:10 +0200)]
drm/exynos/ipp: remove redundant messages

In case of error callback prints already corresponding message.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: simplify ipp_find_obj
Andrzej Hajda [Thu, 3 Jul 2014 13:10:34 +0000 (15:10 +0200)]
drm/exynos/ipp: simplify ipp_find_obj

The patch simplifies ipp_find_obj and removes debug messages.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: remove useless registration checks
Andrzej Hajda [Thu, 3 Jul 2014 13:10:33 +0000 (15:10 +0200)]
drm/exynos/ipp: remove useless registration checks

Argument checks are redundant, clients always check ippdrv before calling
these functions.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: simplify memory check function
Andrzej Hajda [Thu, 3 Jul 2014 13:10:32 +0000 (15:10 +0200)]
drm/exynos/ipp: simplify memory check function

The only thing function should check is if there are buffers in respective
queues.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: remove incorrect checks of list_first_entry result
Andrzej Hajda [Thu, 3 Jul 2014 13:10:31 +0000 (15:10 +0200)]
drm/exynos/ipp: remove incorrect checks of list_first_entry result

list_first_entry does not return NULL on empty list so this check
does not make sense. Moreover there is already code which prevents calling
list_first_entry on empty lists.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: remove temporary variable
Andrzej Hajda [Thu, 3 Jul 2014 13:10:30 +0000 (15:10 +0200)]
drm/exynos/ipp: remove temporary variable

There is no reason to allocate intermediate variable.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: correct address type
Andrzej Hajda [Thu, 3 Jul 2014 13:10:29 +0000 (15:10 +0200)]
drm/exynos/ipp: correct address type

exynos_drm_gem_get_dma_addr returns dma_addr_t, type casting to void* and
back is not necessary.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: remove struct exynos_drm_ipp_private
Andrzej Hajda [Thu, 3 Jul 2014 13:10:28 +0000 (15:10 +0200)]
drm/exynos/ipp: remove struct exynos_drm_ipp_private

struct exynos_drm_ipp_private contains only one pointer so all occurrences
of the struct can be replaced by the pointer itself.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: remove unused field from exynos_drm_ipp_private
Andrzej Hajda [Thu, 3 Jul 2014 13:10:27 +0000 (15:10 +0200)]
drm/exynos/ipp: remove unused field from exynos_drm_ipp_private

The patch removes unused event_list field from struct exynos_drm_ipp_private.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos/ipp: remove type casting
Andrzej Hajda [Thu, 3 Jul 2014 13:10:26 +0000 (15:10 +0200)]
drm/exynos/ipp: remove type casting

The patch replaces type casting with proper pointer.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: g2d: add exynos4212 as a compatible device.
Alban Browaeys [Sat, 19 Jul 2014 20:53:03 +0000 (22:53 +0200)]
drm/exynos: g2d: add exynos4212 as a compatible device.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agoARM: dts: exynos5420: add dsi node
YoungJun Cho [Thu, 17 Jul 2014 09:01:29 +0000 (18:01 +0900)]
ARM: dts: exynos5420: add dsi node

This patch adds common part of dsi node.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agoARM: dts: exynos5420: add mipi-phy node
YoungJun Cho [Thu, 17 Jul 2014 09:01:28 +0000 (18:01 +0900)]
ARM: dts: exynos5420: add mipi-phy node

This patch adds mipi-phy node for MIPI DSI device.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agoARM: dts: exynos5: add system register property
YoungJun Cho [Thu, 17 Jul 2014 09:01:27 +0000 (18:01 +0900)]
ARM: dts: exynos5: add system register property

This patch adds sysreg property to fimd device node
which is required to use I80 interface.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agoARM: dts: exynos4: add system register property
YoungJun Cho [Thu, 17 Jul 2014 09:01:26 +0000 (18:01 +0900)]
ARM: dts: exynos4: add system register property

This patch adds sysreg property to fimd device node
which is required to use I80 interface.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: dsi: add driver data to support Exynos5410/5420/5440 SoCs
YoungJun Cho [Thu, 17 Jul 2014 09:01:23 +0000 (18:01 +0900)]
drm/exynos: dsi: add driver data to support Exynos5410/5420/5440 SoCs

The offset of register DSIM_PLLTMR_REG in Exynos5410 / 5420 / 5440
SoCs is different from the one in Exynos4 SoCs.

In case of Exynos5410 / 5420 / 5440 SoCs, there is no frequency
band bit in DSIM_PLLCTRL_REG, and it uses DSIM_PHYCTRL_REG and
DSIM_PHYTIMING*_REG instead.
So this patch adds driver data to distinguish it.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agoARM: dts: exynos_dsim: add exynos5410 compatible to DT bindings
YoungJun Cho [Thu, 17 Jul 2014 09:01:22 +0000 (18:01 +0900)]
ARM: dts: exynos_dsim: add exynos5410 compatible to DT bindings

This patch adds relevant to exynos5410 compatible
for exynos5410 / 5420 / 5440 SoCs support.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: fimd: support LCD I80 interface
YoungJun Cho [Thu, 17 Jul 2014 09:01:21 +0000 (18:01 +0900)]
drm/exynos: fimd: support LCD I80 interface

To support MIPI command mode based I80 interface panel,
FIMD should do followings:
- Sets LCD I80 interface timings configuration.
- Uses "lcd_sys" as an IRQ resource and sets relevant IRQ configuration.
- Sets LCD block configuration for I80 interface.
- Sets ideal(pixel) clock is 2 times faster than the original one
  to generate frame done IRQ prior to the next TE signal.
- Implements trigger feature that transfers image data if there is page
  flip request, and implements TE handler to call trigger function.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: dsi: add TE interrupt handler to support LCD I80 interface
YoungJun Cho [Tue, 22 Jul 2014 10:49:44 +0000 (19:49 +0900)]
drm/exynos: dsi: add TE interrupt handler to support LCD I80 interface

This is a temporary solution and should be made by more
generic way.

To support LCD I80 interface, the DSI host should register
TE interrupt handler from the TE GPIO of attached panel.
So the panel generates a tearing effect synchronization signal
then the DSI host calls the CRTC device manager to trigger
to transfer video image.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: add TE handler to support LCD I80 interface
YoungJun Cho [Thu, 17 Jul 2014 09:01:19 +0000 (18:01 +0900)]
drm/exynos: add TE handler to support LCD I80 interface

To support LCD I80 interface, the panel should generate
Tearing Effect synchronization signal between MCU and FB
to display video images.
And the display controller should trigger to transfer
video image at this signal.
So the panel receives the TE IRQ, then calls these handler
chains to notify it to the display controller.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agoARM: dts: samsung-fimd: add LCD I80 interface specific properties
YoungJun Cho [Thu, 17 Jul 2014 09:01:18 +0000 (18:01 +0900)]
ARM: dts: samsung-fimd: add LCD I80 interface specific properties

In case of using MIPI DSI based I80 interface panel,
the relevant registers should be set.
So this patch adds relevant DT bindings.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: use wait_event_timeout() for safety usage
YoungJun Cho [Thu, 17 Jul 2014 09:01:17 +0000 (18:01 +0900)]
drm/exynos: use wait_event_timeout() for safety usage

There could be the case that the page flip operation isn't finished correctly
with some abnormal condition such as panel reset. So this patch replaces
wait_event() with wait_event_timeout() to avoid waiting for page flip completion
infinitely.
And clears exynos_crtc->pending_flip in exynos_drm_crtc_page_flip()
when exynos_drm_crtc_mode_set_commit() is failed.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: dsi: move the EoT packets configuration point
YoungJun Cho [Thu, 17 Jul 2014 09:01:16 +0000 (18:01 +0900)]
drm/exynos: dsi: move the EoT packets configuration point

This configuration could be used in MIPI DSI command mode also.
And adds user manual description for display configuration.

Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: hdmi: enable exynos 4210 and 4x12 soc support
Marek Szyprowski [Tue, 1 Jul 2014 08:10:07 +0000 (10:10 +0200)]
drm/exynos: hdmi: enable exynos 4210 and 4x12 soc support

Configuration sets for Exynos 4210 and 4x12 SoC were already defined in
Exynos HDMI and Mixed drivers, but they lacked proper linking to device
tree 'compatible' values. This patch fixes this issue adding support for
following compatible values: samsung,exynos4210-mixer,
samsung,exynos4212-mixer and samsung,exynos4210-hdmi. It also corrects
access to sclk_mixer clock, which is available only on Exynos 4210.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: hdmi: make 'hdmi-en' regulator optional and keep it enabled
Marek Szyprowski [Tue, 1 Jul 2014 08:10:06 +0000 (10:10 +0200)]
drm/exynos: hdmi: make 'hdmi-en' regulator optional and keep it enabled

HDMI_EN regulator is additional regulator for providing voltage source
for DCC lines available on HDMI connector. When there is no power
provided for DDC epprom, some TV-sets do not pulls up HPD (hot plug
detect) line, what causes HDMI block to stay turned off. This patch
enables HDMI_EN regulator (if available) on driver probe and keep it
enabled all the time to let TV-set correctly signal HPD event.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: dp: Use correct module license
Jingoo Han [Tue, 3 Jun 2014 12:46:11 +0000 (21:46 +0900)]
drm/exynos: dp: Use correct module license

According to the header comment in the source file, the driver is
licensed under GPL v2, so update MODULE_LICENSE() to match that.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: Remove unused variable in exynos_drm_gem.c
Sachin Kamat [Wed, 2 Jul 2014 04:03:08 +0000 (09:33 +0530)]
drm/exynos: Remove unused variable in exynos_drm_gem.c

'exynos_gem_obj' is not used in the function. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: Remove unused variable from exynos_hdmi.c
Sachin Kamat [Wed, 2 Jul 2014 04:03:07 +0000 (09:33 +0530)]
drm/exynos: Remove unused variable from exynos_hdmi.c

'frame_size_code' is not used in the function. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agodrm/exynos: Fix NULL pointer exception when suspending without components
Krzysztof Kozlowski [Mon, 30 Jun 2014 13:25:44 +0000 (15:25 +0200)]
drm/exynos: Fix NULL pointer exception when suspending without components

Fix a NULL pointer exception when main exynos drm driver was probed
successfully but no components were added (e.g. by incomplete DTS). In
such case the exynos_drm_load() is never called and drvdata is NULL.

The NULL pointer exception may theoretically also happen as a effect of race between
adding components and main driver: if suspend of the driver happens
before adding components.

Trace:
[    1.190295] [drm] Initialized drm 1.1.0 20060810
[    1.195209] exynos-drm-ipp exynos-drm-ipp: drm ipp registered successfully.
(...)
[   24.001743] PM: Syncing filesystems ... done.
[   24.002177] Freezing user space processes ... (elapsed 0.000 seconds) done.
[   24.007403] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
[   24.032559] Unable to handle kernel NULL pointer dereference at virtual address 00000134
[   24.035007] pgd = dedd8000
[   24.037734] [00000134] *pgd=5ee13831, *pte=00000000, *ppte=00000000
[   24.043953] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[   24.049329] Modules linked in:
[   24.052371] CPU: 0 PID: 1 Comm: sh Not tainted 3.16.0-rc3-00035-geba20bbdde04-dirty #51
[   24.060354] task: df478000 ti: df480000 task.ti: df480000
[   24.065743] PC is at mutex_lock+0x10/0x50
[   24.069733] LR is at drm_modeset_lock_all+0x30/0xbc
[   24.074590] pc : [<c048516c>]    lr : [<c02a14b4>]    psr: a0000013
[   24.074590] sp : df481db8  ip : 00000000  fp : c05e524c
[   24.086045] r10: 00000002  r9 : c02c1fe4  r8 : deca5e44
[   24.091253] r7 : 00000000  r6 : 00000000  r5 : 0000014c  r4 : 00000134
[   24.097763] r3 : 00000000  r2 : 00000000  r1 : 00000000  r0 : 00000134
[   24.104275] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   24.111391] Control: 10c53c7d  Table: 5edd806a  DAC: 00000015
[   24.117120] Process sh (pid: 1, stack limit = 0xdf480240)
[   24.122502] Stack: (0xdf481db8 to 0xdf482000)
[   24.126843] 1da0:                                                       dee01d80 c02a14b4
[   24.135004] 1dc0: 00000000 00000000 c07aff98 c02aec7c 00000002 00000000 00000000 c07aff98
[   24.143164] 1de0: deca5e10 c02aecf4 c02aecd4 c02c2010 00000000 c02c9470 00000000 00000000
[   24.151322] 1e00: 00000000 00000000 deca5e10 deca5e10 00000000 c07aff98 00000002 deca5e44
[   24.159482] 1e20: c06d8f78 c06fb800 deca5e78 c02ca660 df7baf00 007b0aa0 deca5e10 c06fb7c8
[   24.167641] 1e40: c07aff98 00000000 00000002 c02cbe18 9757aec5 00000005 9757aec5 00000005
[   24.175801] 1e60: ded1d380 00000003 00000003 c05c74d8 ded1d380 c07209d4 c05c7514 c07105d8
[   24.183960] 1e80: 01e2a738 c0068a74 00000000 c05c7514 ded1d380 c071c6e0 00000004 c07105d8
[   24.192119] 1ea0: 01e2a738 c047f1e0 c0600cc0 df481ec4 00000003 00000000 00000003 c05c74d8
[   24.200278] 1ec0: ded1d380 c071c6e0 c05c7514 c07105d8 01e2a738 c0069444 c06d905c 00000003
[   24.208438] 1ee0: 00000003 ded1d380 c06d9064 00000004 c05c3fc0 c0067d4c df535ab0 ded1d380
[   24.216596] 1f00: df481f80 ded1d380 00000004 ded1d1cc ded1d1c0 c0221724 00000004 c016ca6c
[   24.224756] 1f20: c016ca28 00000000 00000000 c016c1d4 00000000 00000000 b6f37000 df481f80
[   24.232915] 1f40: decedd80 00000004 df480000 df480000 b6f37000 c0110920 df47839c 60000013
[   24.241074] 1f60: 00000000 00000000 decedd80 decedd80 00000004 df480000 b6f37000 c0110da8
[   24.249233] 1f80: 00000000 00000000 00000004 b6edf5d8 00000004 b6f37000 00000004 c000f2a8
[   24.257393] 1fa0: 00001000 c000f0e0 b6edf5d8 00000004 00000001 b6f37000 00000004 00000000
[   24.265551] 1fc0: b6edf5d8 00000004 b6f37000 00000004 00000004 00000001 00000000 01e2a738
[   24.273711] 1fe0: 00000000 beba0a20 b6e1f4f0 b6e7022c 60000010 00000001 ffffffff ffffffff
[   24.281885] [<c048516c>] (mutex_lock) from [<c02a14b4>] (drm_modeset_lock_all+0x30/0xbc)
[   24.289950] [<c02a14b4>] (drm_modeset_lock_all) from [<c02aec7c>] (exynos_drm_suspend+0xc/0x64)
[   24.298627] [<c02aec7c>] (exynos_drm_suspend) from [<c02aecf4>] (exynos_drm_sys_suspend+0x20/0x34)
[   24.307568] [<c02aecf4>] (exynos_drm_sys_suspend) from [<c02c2010>] (platform_pm_suspend+0x2c/0x54)
[   24.316597] [<c02c2010>] (platform_pm_suspend) from [<c02c9470>] (dpm_run_callback+0x48/0x170)
[   24.325188] [<c02c9470>] (dpm_run_callback) from [<c02ca660>] (__device_suspend+0x128/0x39c)
[   24.333606] [<c02ca660>] (__device_suspend) from [<c02cbe18>] (dpm_suspend+0x5c/0x314)
[   24.341506] [<c02cbe18>] (dpm_suspend) from [<c0068a74>] (suspend_devices_and_enter+0x8c/0x598)
[   24.350185] [<c0068a74>] (suspend_devices_and_enter) from [<c0069444>] (pm_suspend+0x4c4/0x5d0)
[   24.358862] [<c0069444>] (pm_suspend) from [<c0067d4c>] (state_store+0x70/0xd4)
[   24.366156] [<c0067d4c>] (state_store) from [<c0221724>] (kobj_attr_store+0x14/0x20)
[   24.373885] [<c0221724>] (kobj_attr_store) from [<c016ca6c>] (sysfs_kf_write+0x44/0x48)
[   24.381867] [<c016ca6c>] (sysfs_kf_write) from [<c016c1d4>] (kernfs_fop_write+0xc0/0x17c)
[   24.390027] [<c016c1d4>] (kernfs_fop_write) from [<c0110920>] (vfs_write+0xa0/0x1c4)
[   24.397750] [<c0110920>] (vfs_write) from [<c0110da8>] (SyS_write+0x40/0x8c)
[   24.404782] [<c0110da8>] (SyS_write) from [<c000f0e0>] (ret_fast_syscall+0x0/0x3c)
[   24.412332] Code: e92d4010 e1a04000 f57ff05b f590f000 (e1903f9f)
[   24.418448] ---[ end trace cfa06690eabe8dd5 ]---
[   24.423032] Kernel panic - not syncing: Fatal exception
[   24.428220] CPU1: stopping
[   24.430905] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D       3.16.0-rc3-00035-geba20bbdde04-dirty #51
[   24.440549] [<c0016440>] (unwind_backtrace) from [<c001294c>] (show_stack+0x10/0x14)
[   24.448269] [<c001294c>] (show_stack) from [<c04811e8>] (dump_stack+0x80/0xcc)
[   24.455472] [<c04811e8>] (dump_stack) from [<c001495c>] (handle_IPI+0x130/0x15c)
[   24.462850] [<c001495c>] (handle_IPI) from [<c000862c>] (gic_handle_irq+0x60/0x68)
[   24.470400] [<c000862c>] (gic_handle_irq) from [<c0013440>] (__irq_svc+0x40/0x70)
[   24.477860] Exception stack(0xdf4bdf88 to 0xdf4bdfd0)
[   24.482898] df80:                   ffffffed 00000000 00000000 00000000 df4bc000 c06d042c
[   24.491058] dfa0: 00000000 ffffffed c06d03c0 00000000 c070c288 00000000 00000000 df4bdfd0
[   24.499214] dfc0: c0010324 c0010328 60000013 ffffffff
[   24.504254] [<c0013440>] (__irq_svc) from [<c0010328>] (arch_cpu_idle+0x28/0x30)
[   24.511634] [<c0010328>] (arch_cpu_idle) from [<c005f110>] (cpu_startup_entry+0x2c4/0x3f0)
[   24.519878] [<c005f110>] (cpu_startup_entry) from [<400086c4>] (0x400086c4)
[   24.526821] ---[ end Kernel panic - not syncing: Fatal exception

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
10 years agoagp: remove read/write stubs
Mathias Krause [Sun, 15 Jun 2014 21:02:45 +0000 (23:02 +0200)]
agp: remove read/write stubs

The VFS layer handles those in the very same way, if unset. No need for
additional stubs.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: drop i386 verification
David Herrmann [Wed, 23 Jul 2014 15:26:40 +0000 (17:26 +0200)]
drm: drop i386 verification

Linux doesn't run on i386, anymore. See:

    commit d55c5a93db2d5fa95f233ab153f594365d95b777
    Author: H. Peter Anvin <hpa@linux.intel.com>
    Date:   Wed Nov 28 11:50:24 2012 -0800

        x86, 386 removal: Remove CONFIG_CMPXCHG

        All 486+ CPUs support CMPXCHG, so remove the fallback 386 support
        code.

Furthermore, as the commit-message states, all 486+ CPUs support the
CMPXCHG instruction and thus even legacy DRM can run fine.

Drop the now superfluous "x86 == 3" check.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: drop unused "struct drm_queue"
David Herrmann [Wed, 23 Jul 2014 15:26:37 +0000 (17:26 +0200)]
drm: drop unused "struct drm_queue"

This object is unused, drop it.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: remove unused "struct drm_freelist"
David Herrmann [Wed, 23 Jul 2014 15:26:36 +0000 (17:26 +0200)]
drm: remove unused "struct drm_freelist"

This object is not used except for static fields in drm_bufs *cough*.
Inline the watermark fields and drop the unused structure definition.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/rcar-du: Fix maximum frame buffer pitch computation
Laurent Pinchart [Mon, 28 Jul 2014 18:18:36 +0000 (20:18 +0200)]
drm/rcar-du: Fix maximum frame buffer pitch computation

The maximum pitch constraint for the hardware is expressed in pixels.
Convert it to bytes to validate frame buffer creation, as frame buffer
pitches are expressed in bytes.

Reported-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: fix initial fbdev setup warnings
Dave Airlie [Wed, 23 Jul 2014 04:26:12 +0000 (14:26 +1000)]
drm/i915: fix initial fbdev setup warnings

This chunk was no longer required from what I can see, or
at least it is doing the wrong thing, as I confused
intel_connector->encoder and connector->encoder. Drop it
for now, to remove the warnings at bootup.

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: don't suspend gt until after we disable irqs and display (v2)
Dave Airlie [Wed, 23 Jul 2014 04:25:24 +0000 (14:25 +1000)]
drm/i915: don't suspend gt until after we disable irqs and display (v2)

When I moved the irq disable down to after display disable,
I didn't realise the gt suspend also required irqs off, so move it
down as well.

Fixes WARNs seen at suspend/resume time.

v2: moved the rps flush down as well.

Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into...
Dave Airlie [Wed, 23 Jul 2014 04:30:13 +0000 (14:30 +1000)]
Merge branch 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next

pull the msm patch in.
* 'component-for-drm' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm: msm: update to use component match support

10 years agoMerge branch 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into...
Dave Airlie [Wed, 23 Jul 2014 03:01:56 +0000 (13:01 +1000)]
Merge branch 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next

Merge armada changes, I've confirmed the componenet changes are same as in Greg's tree.
* 'drm-armada-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm/armada: register crtc with port
  drm/armada: permit CRTCs to be registered as separate devices
  dt-bindings: add Marvell Dove LCD controller documentation
  drm/armada: update Armada 510 (Dove) to use "ext_ref_clk1" as the clock
  drm/armada: convert to componentized support
  drm: add of_graph endpoint helper to find possible CRTCs
  component: fix bug with legacy API
  drm/armada: make variant a CRTC thing
  drm/armada: move variant initialisation to CRTC init
  drm/armada: use number of CRTCs registered
  drm/armada: move IRQ handling into CRTC
  component: add support for component match array
  component: ignore multiple additions of the same component
  component: fix missed cleanup in case of devres failure

10 years agodrm/i915: fix build without fbdev.
Chris Wilson [Tue, 22 Jul 2014 10:10:28 +0000 (20:10 +1000)]
drm/i915: fix build without fbdev.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: make device_released static
Dave Airlie [Tue, 22 Jul 2014 02:59:32 +0000 (12:59 +1000)]
drm/ttm: make device_released static

fixes sparse warning, and removes potentially dangerous name from namespace.

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: use gfp_t instead of int for flags.
Dave Airlie [Tue, 22 Jul 2014 02:55:39 +0000 (12:55 +1000)]
drm/ttm: use gfp_t instead of int for flags.

fixes sparse warning.

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: omapdrm: fix compiler errors
Russell King [Sat, 12 Jul 2014 09:53:41 +0000 (10:53 +0100)]
drm: omapdrm: fix compiler errors

Regular randconfig nightly testing has detected problems with omapdrm.

omapdrm fails to build when the kernel is built to support 64-bit DMA
addresses and/or 64-bit physical addresses due to an assumption about
the width of these types.

Use %pad to print DMA addresses, rather than %x or %Zx (which is even
more wrong than %x).  Avoid passing a uint32_t pointer into a function
which expects dma_addr_t pointer.

drivers/gpu/drm/omapdrm/omap_plane.c: In function 'omap_plane_pre_apply':
drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Werror=format]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_plane.o] Error 1
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_get_paddr':
drivers/gpu/drm/omapdrm/omap_gem.c:794:4: error: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_describe':
drivers/gpu/drm/omapdrm/omap_gem.c:991:4: error: format '%Zx' expects argument of type 'size_t', but argument 7 has type 'dma_addr_t' [-Werror=format]
drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_init':
drivers/gpu/drm/omapdrm/omap_gem.c:1470:4: error: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' [-Werror=format]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_gem.o] Error 1
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c: In function 'dmm_txn_append':
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:226:2: error: passing argument 3 of 'alloc_dma' from incompatible pointer type [-Werror]
make[5]: *** [drivers/gpu/drm/omapdrm/omap_dmm_tiler.o] Error 1
make[5]: Target `__build' not remade because of errors.
make[4]: *** [drivers/gpu/drm/omapdrm] Error 2

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: bochs: fix warnings
Russell King [Sat, 12 Jul 2014 10:01:38 +0000 (11:01 +0100)]
drm: bochs: fix warnings

Regular nightly randconfig build testing discovered these warnings:

drivers/gpu/drm/bochs/bochs_drv.c:100:12: warning: 'bochs_pm_suspend' defined but not used [-Wunused-function]
drivers/gpu/drm/bochs/bochs_drv.c:117:12: warning: 'bochs_pm_resume' defined but not used [-Wunused-function]

Fix these by adding the same condition that SET_SYSTEM_SLEEP_PM_OPS()
uses.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: cirrus: fix warnings
Russell King [Sat, 12 Jul 2014 10:01:43 +0000 (11:01 +0100)]
drm: cirrus: fix warnings

Regular nightly randconfig build testing discovered these warnings:

drivers/gpu/drm/cirrus/cirrus_drv.c:79:12: warning: 'cirrus_pm_suspend' defined but not used [-Wunused-function]
drivers/gpu/drm/cirrus/cirrus_drv.c:96:12: warning: 'cirrus_pm_resume' defined but not used [-Wunused-function]

Fix these by adding the same condition that SET_SYSTEM_SLEEP_PM_OPS()
uses.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: shmobile: fix warnings
Russell King [Sun, 13 Jul 2014 11:19:03 +0000 (12:19 +0100)]
drm: shmobile: fix warnings

drivers/gpu/drm/shmobile/shmob_drm_drv.c:300:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]

Always use #ifdef with CONFIG symbols, never just bare #if

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: rcar-du: fix warnings
Russell King [Sun, 13 Jul 2014 11:18:58 +0000 (12:18 +0100)]
drm: rcar-du: fix warnings

drivers/gpu/drm/rcar-du/rcar_du_drv.c:190:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]

Always use #ifdef with CONFIG symbols, never just bare #if

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i2c: tda998x: Remove useless test
Jean-Francois Moine [Mon, 7 Jul 2014 15:59:51 +0000 (17:59 +0200)]
drm/i2c: tda998x: Remove useless test

In tda998x_encoder_destroy(), priv->cec is never NULL, so,
remove its test.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'drm-i915-mst-support-next' of git://people.freedesktop.org/~airlied...
Dave Airlie [Tue, 22 Jul 2014 01:21:51 +0000 (11:21 +1000)]
Merge branch 'drm-i915-mst-support-next' of git://people.freedesktop.org/~airlied/linux into drm-next

Evil super powers maintainer abuse, get i915 mst support into -next.

* 'drm-i915-mst-support-next' of git://people.freedesktop.org/~airlied/linux:
  drm/i915: mst topology dumper in debugfs (v0.2)
  drm/i915: add DP 1.2 MST support (v0.7)
  drm/i915: split conversion function out into separate function
  drm/i915: check connector->encoder before using it.
  i915: split some DP modesetting code into a separate function
  drm/i915: add some registers need for displayport MST support.

10 years agodrm/i915: mst topology dumper in debugfs (v0.2)
Dave Airlie [Mon, 12 May 2014 05:22:27 +0000 (15:22 +1000)]
drm/i915: mst topology dumper in debugfs (v0.2)

use the mst helper code to dump the topology in debugfs.

v0.2: drop is_mst check - as we want to dump other info

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: add DP 1.2 MST support (v0.7)
Dave Airlie [Fri, 2 May 2014 04:02:48 +0000 (14:02 +1000)]
drm/i915: add DP 1.2 MST support (v0.7)

This adds DP 1.2 MST support on Haswell systems.

Notes:
a) this reworks irq handling for DP MST ports, so that we can
avoid the mode config locking in the current hpd handlers, as
we need to process up/down msgs at a better time.

Changes since v0.1:
use PORT_PCH_HOTPLUG to detect short vs long pulses
add a workqueue to deal with digital events as they can get blocked on the
main workqueue beyong mode_config mutex
fix a bunch of modeset checker warnings
acks irqs in the driver
cleanup the MST encoders

Changes since v0.2:
check irq status again in work handler
move around bring up and tear down to fix DPMS on/off
use path properties.

Changes since v0.3:
updates for mst apis
more state checker fixes
irq handling improvements
fbcon handling support
improved reference counting of link - fixes redocking.

Changes since v0.4:
handle gpu reset hpd reinit without oopsing
check link status on HPD irqs
fix suspend/resume

Changes since v0.5:
use proper functions to get max link/lane counts
fix another checker backtrace - due to connectors disappearing.
set output type in more places fro, unknown->displayport
don't talk to devices if no HPD asserted
check mst on short irqs only
check link status properly
rebase onto prepping irq changes.
drop unsued force_act

Changes since v0.6:
cleanup unused struct entry.

[airlied: fix some sparse warnings].

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/dp: Staticize a couple of DP utility functions
Thierry Reding [Mon, 21 Jul 2014 11:23:57 +0000 (13:23 +0200)]
drm/dp: Staticize a couple of DP utility functions

sparse complains about these functions missing a prototype, but looking
closer they aren't (and likely not supposed to be) used outside of this
source file, so they can be made static.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ttm: Fix a few sparse warnings
Thierry Reding [Mon, 21 Jul 2014 11:15:51 +0000 (13:15 +0200)]
drm/ttm: Fix a few sparse warnings

The final parameter to ttm_bo_reserve() is a pointer, therefore callers
should use NULL instead of 0.

Fixes a bunch of sparse warnings of this type:

warning: Using plain integer as NULL pointer

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: Add missing __user annotation
Thierry Reding [Mon, 21 Jul 2014 11:24:37 +0000 (13:24 +0200)]
drm: Add missing __user annotation

The drm_copy_field() function copies strings into userspace buffers, so
the first parameter needs to have a __user annotation to avoid warnings
from the sparse checker.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: split conversion function out into separate function
Dave Airlie [Thu, 5 Jun 2014 03:22:59 +0000 (13:22 +1000)]
drm/i915: split conversion function out into separate function

for MST I need to reuse this, so just move it now.

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: check connector->encoder before using it.
Dave Airlie [Fri, 2 May 2014 03:44:18 +0000 (13:44 +1000)]
drm/i915: check connector->encoder before using it.

DP MST will need connectors that aren't connected to specific
encoders, add some checks in advance to avoid oopses.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoi915: split some DP modesetting code into a separate function
Dave Airlie [Fri, 2 May 2014 03:36:43 +0000 (13:36 +1000)]
i915: split some DP modesetting code into a separate function

this is just prep work for mst support.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: add some registers need for displayport MST support.
Dave Airlie [Fri, 2 May 2014 01:17:41 +0000 (11:17 +1000)]
drm/i915: add some registers need for displayport MST support.

These are just from the Haswell spec.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm: gem_cma: Use ERR_CAST helper
Sachin Kamat [Thu, 3 Jul 2014 12:03:33 +0000 (17:33 +0530)]
drm: gem_cma: Use ERR_CAST helper

Makes the code a bit more readable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: fix psr match conditions screw ups.
Dave Airlie [Mon, 21 Jul 2014 03:54:41 +0000 (13:54 +1000)]
drm/i915: fix psr match conditions screw ups.

Not enough brown paper bags, you'll have to share one.
(oops below).

The initial match condition code was racy (locking is coming I hear).

then along came:
cd234b0bfd5ab012e42274b24aae420fa1823d58
drm/i915: Do not dereference NULL crtc or fb until after checking

Chris made an attempt to fix it, Ben "reviewed" it.
Daniel merged it.

Then
drm/i915: Make use of intel_fb_obj() (v2)
2ff8fde1ea0992dfd735dce94f8cae2aacff8e5c

made it worse by removing the obj check later.

All in all, my laptop can't barely turn off the display
without hitting this.

Posted to #intel-gfx out of niceness, but I've merged
this already into drm-next.

Here's an oops.
[   11.528185] BUG: unable to handle kernel NULL pointer dereference at 00000000000000d0
[   11.528233] IP: [<ffffffffa0161fde>] intel_edp_psr_match_conditions+0x1e/0x2e0 [i915]
[   11.528294] PGD 35bc0067 PUD c997c067 PMD 0
[   11.528321] Oops: 0000 [#1] SMP
[   11.528916] CPU: 3 PID: 244 Comm: kworker/3:2 Not tainted 3.16.0-rc4+ #17
[   11.528949] Hardware name: LENOVO 20ARS25701/20ARS25701, BIOS GJET72WW (2.22 ) 02/21/2014
[   11.529004] Workqueue: events intel_edp_psr_work [i915]
[   11.529031] task: ffff8803079fdaa0 ti: ffff8803079c4000 task.ti: ffff8803079c4000
[   11.529067] RIP: 0010:[<ffffffffa0161fde>]  [<ffffffffa0161fde>] intel_edp_psr_match_conditions+0x1e/0x2e0 [i915]
[   11.529129] RSP: 0018:ffff8803079c7d40  EFLAGS: 00010246
[   11.529155] RAX: 0000000000000000 RBX: ffff88030c11c000 RCX: c000000000000000
[   11.529189] RDX: 0000000000000001 RSI: 1df0000000000000 RDI: ffff88030c1190d8
[   11.529222] RBP: ffff8803079c7d60 R08: ffffffff82691140 R09: 0000000000000000
[   11.529256] R10: ffff8803079fdaa0 R11: 3e00000000000000 R12: ffff88030c11c728
[   11.529290] R13: ffff88030c1190d8 R14: ffff88031e2d8e00 R15: 00000000000000c0
[   11.529324] FS:  0000000000000000(0000) GS:ffff88031e2c0000(0000) knlGS:0000000000000000
[   11.529361] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.529389] CR2: 00000000000000d0 CR3: 00000000c8d9d000 CR4: 00000000001407e0
[   11.529423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.529457] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.529489] Stack:
[   11.529500]  ffff88030c119000 ffff88030c11c728 ffff88030c1190d8 ffff88031e2d8e00
[   11.529541]  ffff8803079c7d88 ffffffffa01679b2 ffff880035b29a80 ffff880307909f00
[   11.529583]  ffff88031e2d4740 ffff8803079c7df8 ffffffff810a78ab ffffffff810a7849
[   11.529624] Call Trace:
[   11.529654]  [<ffffffffa01679b2>] intel_edp_psr_work+0x52/0x90 [i915]
[   11.529689]  [<ffffffff810a78ab>] process_one_work+0x1db/0x540
[   11.529719]  [<ffffffff810a7849>] ? process_one_work+0x179/0x540
[   11.529750]  [<ffffffff810a81ed>] worker_thread+0x11d/0x520
[   11.529779]  [<ffffffff810a80d0>] ? create_and_start_worker+0x60/0x60
[   11.529810]  [<ffffffff810aeb04>] kthread+0xe4/0x100
[   11.529836]  [<ffffffff810aea20>] ? kthread_create_on_node+0x200/0x200
[   11.529870]  [<ffffffff81705ebc>] ret_from_fork+0x7c/0xb0
[   11.529896]  [<ffffffff810aea20>] ? kthread_create_on_node+0x200/0x200
[   11.529926] Code: ba 31 13 f0 c9 85 f6 75 84 eb d0 66 90 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 53 48 8b 87 68 ff ff ff 48 8b 9f 28 ff ff ff <48> 8b 80 d0 00 00 00 4c 8b 63 28 48 8b 40 48 48 85 c0 0f 84 1a
[   11.530110] RIP  [<ffffffffa0161fde>] intel_edp_psr_match_conditions+0x1e/0x2e0 [i915]
[   11.530163]  RSP <ffff8803079c7d40>
[   11.530180] CR2: 00000000000000d0

Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge tag 'topic/core-stuff-2014-07-18' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Sat, 19 Jul 2014 07:27:16 +0000 (17:27 +1000)]
Merge tag 'topic/core-stuff-2014-07-18' of git://anongit.freedesktop.org/drm-intel into drm-next

misc core patches.

* tag 'topic/core-stuff-2014-07-18' of git://anongit.freedesktop.org/drm-intel:
  drm: Check for connection_mutex in drm_select_eld
  drm/dp-mst-helper: Don't use uninitialized fields of the sideband message header
  drm/dp-mst-helper: Avoid reading uninitialized value
  drm/plane-helper: Use proper plane init function
  drivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree
  drm: Fix function names in kerneldoc

10 years agoMerge tag 'drm-intel-next-2014-07-11' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Sat, 19 Jul 2014 06:43:41 +0000 (16:43 +1000)]
Merge tag 'drm-intel-next-2014-07-11' of git://anongit.freedesktop.org/drm-intel into drm-next

- fbc improvements when stolen memory is tight (Ben)
- cdclk handling improvements for vlv/chv (Ville)
- proper fix for stuck primary planes on gmch platforms with cxsr (Imre&Ebgert
  Eich)
- gen8 hw semaphore support (Ben)
- more execlist prep work from Oscar Mateo
- locking fixes for primary planes (Matt Roper)
- code rework to support runtime pm for dpms on hsw/bdw (Paulo, Imre & me), but
  not yet enabled because some fixes from Paulo haven't made the cut
- more gpu boost tuning from Chris
- as usual piles of little things all over

* tag 'drm-intel-next-2014-07-11' of git://anongit.freedesktop.org/drm-intel: (93 commits)
  drm/i915: Make the RPS interrupt generation mask handle the vlv wa
  drm/i915: Move RPS evaluation interval counters to i915->rps
  drm/i915: Don't cast a pointer to void* unnecessarily
  drm/i915: don't read LVDS regs at compute_config time
  drm/i915: check the power domains in intel_lvds_get_hw_state()
  drm/i915: check the power domains in ironlake_get_pipe_config()
  drm/i915: don't skip shared DPLL assertion on LPT
  drm/i915: Only touch WRPLL hw state in enable/disable hooks
  drm/i915: Switch to common shared dpll framework for WRPLLs
  drm/i915: ->enable hook for WRPLLs
  drm/i915: ->disable hook for WRPLLs
  drm/i915: State readout support for WRPLLs
  drm/i915: add POWER_DOMAIN_PLLS
  drm/i915: Document that the pll->mode_set hook is optional
  drm/i915: Basic shared dpll support for WRPLLs
  drm/i915: Precompute static ddi_pll_sel values in encoders
  drm/i915: BDW also has special-purpose DP DDI clocks
  drm/i915: State readout and cross-checking for ddi_pll_sel
  drm/i915: Move ddi_pll_sel into the pipe config
  drm/i915: Add a debugfs file for the shared dpll state
  ...

10 years agodrm: Check for connection_mutex in drm_select_eld
Sean Paul [Thu, 17 Jul 2014 15:25:18 +0000 (11:25 -0400)]
drm: Check for connection_mutex in drm_select_eld

drm_select_eld should check for mode_config.connection_mutex as
well as mode_config.mutex: We need that since this function checks
conector->encoder links.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
[danvet: Pimp commit message slightly.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/dp-mst-helper: Don't use uninitialized fields of the sideband message header
Damien Lespiau [Mon, 14 Jul 2014 11:13:18 +0000 (12:13 +0100)]
drm/dp-mst-helper: Don't use uninitialized fields of the sideband message header

We could be using uninitialized fields of the header in
drm_dp_encode_sideband_msg_hdr(), for instance hdr->somt is set to 1 in
the first patcket but never set to 0 otherwise.

Always clear the header at the start then.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/dp-mst-helper: Avoid reading uninitialized value
Damien Lespiau [Mon, 14 Jul 2014 10:53:44 +0000 (11:53 +0100)]
drm/dp-mst-helper: Avoid reading uninitialized value

A static analysis tool tells me that we could try to read an
uninitialized 'ret' value. Plug that.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/plane-helper: Use proper plane init function
Matt Roper [Mon, 30 Jun 2014 22:37:51 +0000 (15:37 -0700)]
drm/plane-helper: Use proper plane init function

drm_plane_init() (the legacy plane initialization function) takes a bool
as its final parameter; originally this indicated whether a plane was
'private' to the driver (before the DRM core understood non-overlay
planes), now it indicates whether the plane is a primary plane (private
planes were used by some drivers to represent primary planes
internally).  The newer drm_universal_plane_init() take an 'enum
drm_plane_type' as its final parameter to allow the caller to specify
the specific plane type desired (primary, cursor, or overlay).

Due to a rebasing mistake, the primary plane helper is currently passing
DRM_PLANE_TYPE_PRIMARY (enum value = 1) for drm_plane_init()'s boolean
'is_primary' parameter.  This winds up giving the correct behavior since
DRM_PLANE_TYPE_PRIMARY evaluates as true, but is confusing to anyone
reading the code since we're passing an enum value (one of three
possible values) for a boolean parameter.

Replace the primary plane helper's call to drm_plane_init() with
drm_universal_plane_init() so that the parameter and value types match
up as expected.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree
Fabian Frederick [Sat, 28 Jun 2014 13:20:43 +0000 (15:20 +0200)]
drivers/gpu/drm/drm_buffer.c: remove unnecessary null test before kfree

This patch removes special case of last element and loops from idx to 0.

Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm: Fix function names in kerneldoc
Thierry Reding [Thu, 26 Jun 2014 19:37:20 +0000 (21:37 +0200)]
drm: Fix function names in kerneldoc

The drm_property_create_enum(), drm_property_create_bitmask() and
drm_property_create_range() contain the wrong name in the kerneldoc
comment. This is probably simply a copy/paste mistake.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/radeon: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:05 +0000 (23:30 -0400)]
drm/radeon: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/i915: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:04 +0000 (23:30 -0400)]
drm/i915: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/nouveau: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:03 +0000 (23:30 -0400)]
drm/nouveau: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/vmwgfx: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:02 +0000 (23:30 -0400)]
drm/vmwgfx: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/udl: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:01 +0000 (23:30 -0400)]
drm/udl: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/mgag200: use helpers
Rob Clark [Fri, 18 Jul 2014 03:30:00 +0000 (23:30 -0400)]
drm/mgag200: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/exynos: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:59 +0000 (23:29 -0400)]
drm/exynos: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/cirrus: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:58 +0000 (23:29 -0400)]
drm/cirrus: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/bochs: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:57 +0000 (23:29 -0400)]
drm/bochs: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/ast: use helpers
Rob Clark [Fri, 18 Jul 2014 03:29:56 +0000 (23:29 -0400)]
drm/ast: use helpers

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agodrm/armada: register crtc with port
Russell King [Sun, 15 Jun 2014 10:21:23 +0000 (11:21 +0100)]
drm/armada: register crtc with port

Register the CRTC with the port node so that the DRM OF helpers can
find the appropriate CRTC.  This is important so that encoders can
identify their corresponding possible CRTCs.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
10 years agodrm/armada: permit CRTCs to be registered as separate devices
Russell King [Tue, 22 Apr 2014 10:10:15 +0000 (11:10 +0100)]
drm/armada: permit CRTCs to be registered as separate devices

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
10 years agodt-bindings: add Marvell Dove LCD controller documentation
Russell King [Mon, 30 Jun 2014 14:38:18 +0000 (15:38 +0100)]
dt-bindings: add Marvell Dove LCD controller documentation

Add the Marvell Dove LCD controller DT binding documentation.  The
clock names used here are intentionally taken from the specification
for the Dove SoC.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
10 years agodrm/armada: update Armada 510 (Dove) to use "ext_ref_clk1" as the clock
Russell King [Sat, 5 Jul 2014 10:16:58 +0000 (11:16 +0100)]
drm/armada: update Armada 510 (Dove) to use "ext_ref_clk1" as the clock

Remove the underscore between "clk" and "1" so that we match the name
of the clock given in the documentation.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
10 years agodrm/armada: convert to componentized support
Russell King [Tue, 4 Feb 2014 11:57:06 +0000 (11:57 +0000)]
drm/armada: convert to componentized support

Convert the Armada DRM driver to use the component helpers, which will
permit us to clean up the driver and move towards an implementation
which is compatible with a DT description of the hardware.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
10 years agoMerge branches 'drm-devel' and 'component-for-driver' into armada-drm
Russell King [Fri, 11 Jul 2014 14:39:05 +0000 (15:39 +0100)]
Merge branches 'drm-devel' and 'component-for-driver' into armada-drm

10 years agodrm: add of_graph endpoint helper to find possible CRTCs
Russell King [Sun, 15 Jun 2014 10:07:12 +0000 (11:07 +0100)]
drm: add of_graph endpoint helper to find possible CRTCs

Add a helper to allow encoders to find their possible CRTCs from the
OF graph without having to re-implement this functionality.  We add a
device_node to drm_crtc which corresponds with the port node in the
DT description of the CRTC device.

We can then scan the DRM device list for CRTCs to find their index,
matching the appropriate CRTC using the port device_node, thus building
up the possible CRTC mask.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
10 years agodrm/i915: Make the RPS interrupt generation mask handle the vlv wa
Chris Wilson [Thu, 10 Jul 2014 19:31:19 +0000 (20:31 +0100)]
drm/i915: Make the RPS interrupt generation mask handle the vlv wa

We can eliminate a lot of special case code by making the computation of
the interrupt mask be correct for all callers.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Move RPS evaluation interval counters to i915->rps
Chris Wilson [Thu, 10 Jul 2014 19:31:18 +0000 (20:31 +0100)]
drm/i915: Move RPS evaluation interval counters to i915->rps

Place the RPS counters inside the RPS struct.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Don't cast a pointer to void* unnecessarily
Damien Lespiau [Thu, 10 Jul 2014 13:52:43 +0000 (14:52 +0100)]
drm/i915: Don't cast a pointer to void* unnecessarily

C is super happy to asign anything pointer to void *. Don't pretend
otherwise.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: don't read LVDS regs at compute_config time
Paulo Zanoni [Fri, 4 Jul 2014 16:38:36 +0000 (13:38 -0300)]
drm/i915: don't read LVDS regs at compute_config time

We may reach this point while the machine is still runtime suspended,
so we'll hit a WARN. The other encoders also don't touch registers at
this point, so instead of waking the machine up, write some code to
keep the register always at the same state, including after we runtime
suspend/resume.

Testcase: igt/pm_rpm
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80463
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: check the power domains in intel_lvds_get_hw_state()
Paulo Zanoni [Fri, 4 Jul 2014 16:38:35 +0000 (13:38 -0300)]
drm/i915: check the power domains in intel_lvds_get_hw_state()

Just like we do for the other encoders. This should fix some WARNs
when running pm_rpm on SNB.

Testcase: igt/pm_rpm
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80463
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: check the power domains in ironlake_get_pipe_config()
Paulo Zanoni [Fri, 4 Jul 2014 16:38:34 +0000 (13:38 -0300)]
drm/i915: check the power domains in ironlake_get_pipe_config()

Just like we already do in haswell_get_pipe_config(). This should
prevent some WARNs when we run pm_rpm on SNB.

Testcase: igt/pm_rpm
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80463
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: don't skip shared DPLL assertion on LPT
Paulo Zanoni [Fri, 4 Jul 2014 14:30:28 +0000 (11:30 -0300)]
drm/i915: don't skip shared DPLL assertion on LPT

Since we now have support for shared DPLLS.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Only touch WRPLL hw state in enable/disable hooks
Daniel Vetter [Wed, 25 Jun 2014 19:02:03 +0000 (22:02 +0300)]
drm/i915: Only touch WRPLL hw state in enable/disable hooks

To be able to do this we need to separately keep track of how many
crtcs need a given WRPLL and how many actually actively use it. The
common shared dpll framework already has all this, including massive
state readout and cross checking. Which allows us to do this switch in
a fairly small patch.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Switch to common shared dpll framework for WRPLLs
Daniel Vetter [Wed, 25 Jun 2014 19:02:02 +0000 (22:02 +0300)]
drm/i915: Switch to common shared dpll framework for WRPLLs

Mostly this patch is one big excersize in deleting code and asserts
which are no longer needed. Note that we still abuse the shared dpll
framework a bit since we call the enable/disable functions from the
crtc mode_set and off hooks. But changing the actual hardware sequence
will be done in the next step.

Note that besides the massive amount of changes in this patch the
places and order in which the low-level WRPLL code is called is
absolutely unchanged.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[imre: rebased on patchset version w/o pch/crt/fdi refactoring]
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: ->enable hook for WRPLLs
Daniel Vetter [Wed, 25 Jun 2014 19:02:01 +0000 (22:02 +0300)]
drm/i915: ->enable hook for WRPLLs

This time around another cute hack to pre-fill the pll->hw_state with
the right values. And also remove a bunch of checks which will be
replaced by lots more checks in the common framework.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: ->disable hook for WRPLLs
Daniel Vetter [Wed, 25 Jun 2014 19:02:00 +0000 (22:02 +0300)]
drm/i915: ->disable hook for WRPLLs

Currently still with a redudant WARN_ON in there, the common shared
dpll code will take care of this in the future.

Also we need to flip the switch for the transitional hack now to make
sure that we disable the right pll.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: State readout support for WRPLLs
Daniel Vetter [Fri, 4 Jul 2014 14:27:39 +0000 (11:27 -0300)]
drm/i915: State readout support for WRPLLs

Still tacked onto the side, but slowly getting there.

v2: Don't forget the debugfs file.

v3 (from Paulo): Don't forget to check the power domains.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: add POWER_DOMAIN_PLLS
Paulo Zanoni [Fri, 4 Jul 2014 14:27:38 +0000 (11:27 -0300)]
drm/i915: add POWER_DOMAIN_PLLS

And get/put it when needed. The special thing about this commit is
that it will now return false in ibx_pch_dpll_get_hw_state() in case
the power domain is not enabled. This will fix some WARNs we have when
we run pm_rpm on SNB.

Testcase: igt/pm_rpm
Bugzilla:https://bugs.freedesktop.org/show_bug.cgi?id=80463
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Document that the pll->mode_set hook is optional
Daniel Vetter [Wed, 25 Jun 2014 19:01:58 +0000 (22:01 +0300)]
drm/i915: Document that the pll->mode_set hook is optional

The WRPLLs won't use them.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Basic shared dpll support for WRPLLs
Daniel Vetter [Wed, 25 Jun 2014 19:01:57 +0000 (22:01 +0300)]
drm/i915: Basic shared dpll support for WRPLLs

Just filing in names and ids, but not yet officially registering them
so that the hw state cross checker doesn't completely freak out about
them. Still since we do already read out and cross check
config->shared_dpll the basics are now there to flesh out the wrpll
shared dpll implementation.

The idea is now to roll out all the callbacks step-by-step and then at
the end switch to the shared dpll framework. This way hw and sw
changes are clearly separated.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[imre: added const to hsw_ddi_pll_names (Damien)]
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
10 years agodrm/i915: Precompute static ddi_pll_sel values in encoders
Daniel Vetter [Fri, 4 Jul 2014 14:26:04 +0000 (11:26 -0300)]
drm/i915: Precompute static ddi_pll_sel values in encoders

This way only the dynamic WRPLL selection for hdmi ddi mode is
done in intel_ddi_pll_select.

v2: Don't clobber the precomputed values when selecting clocks fro
hdmi encoders.
v3 (from Paulo): Rebase on top of the s/IS_HASWELL/HAS_DDI/ patch.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Paulo Zanoni <przanoni@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>