Alex Deucher [Tue, 13 Mar 2012 20:25:11 +0000 (16:25 -0400)]
drm/radeon/kms: fix up dce4/5 display watermark calc for dpm
Calculate the low and high watermarks based on the low and high
clocks for the current power state. The dynamic pm hw will select
the appropriate watermark based on the internal dpm state.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 25 Oct 2012 21:02:17 +0000 (17:02 -0400)]
drm/radeon/kms: fix up 6xx/7xx display watermark calc for dpm
Calculate the low and high watermarks based on the low and high
clocks for the current power state. The dynamic pm hw will select
the appropriate watermark based on the internal dpm state.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 25 Oct 2012 20:58:55 +0000 (16:58 -0400)]
drm/radeon/kms: fix up rs780/rs880 display watermark calc for dpm
calculate the low and high watermarks based on the low and high
clocks for the current power state. The dynamic pm hw will select
the appropriate watermark based on the internal dpm state.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 12 Apr 2013 17:55:22 +0000 (13:55 -0400)]
drm/radeon/kms: add common dpm infrastructure
This adds the common dpm (dynamic power management)
infrastructure:
- dpm callbacks
- dpm init/fini/suspend/resume
- dpm power state selection
No device specific code is enabled yet.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 21 Jun 2013 18:42:08 +0000 (14:42 -0400)]
drm/radeon/kms: add new asic struct for rv6xx (v4)
Has a different dpm controller than r600.
v2: rebase on gpu reset changes
v3: rebase on get_xclk changes
v4: update rptr/wtpr callbacks
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Mon, 24 Jun 2013 14:50:34 +0000 (10:50 -0400)]
drm/radeon/kms: add atom helper functions for dpm (v3)
dpm needs access to atombios data and command tables
for setup and calculation of a number of parameters.
v2: endian fix
v3: fix mc reg table bug
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 12 Apr 2013 17:52:52 +0000 (13:52 -0400)]
drm/radeon: properly set up the RLC on ON/LN/TN (v3)
This is required for certain advanced functionality.
v2: save/restore list takes dword offsets
v3: rebase on gpu reset changes
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 11 Jan 2013 20:33:13 +0000 (15:33 -0500)]
drm/radeon/kms: move ucode defines to a separate header
Avoids confusion and duplication.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 14 Dec 2012 16:57:36 +0000 (11:57 -0500)]
drm/radeon: add support for thermal sensor on tn
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 21 Jun 2013 18:38:03 +0000 (14:38 -0400)]
drm/radeon: make get_temperature functions a callback
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 12 Apr 2013 15:49:51 +0000 (11:49 -0400)]
drm/radeon/evergreen: add indirect register accessors for CG registers
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 12 Apr 2013 15:27:20 +0000 (11:27 -0400)]
drm/radeon/kms: add accessors for RCU indirect space
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 24 Jan 2013 17:30:24 +0000 (12:30 -0500)]
drm/radeon: add current KB pci ids
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 7 Jun 2013 15:52:42 +0000 (11:52 -0400)]
drm/radeon: add current Bonaire PCI ids
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 10 Apr 2013 17:41:25 +0000 (13:41 -0400)]
drm/radeon: add cik tile mode array query
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 20:22:31 +0000 (16:22 -0400)]
drm/radeon: add radeon_asic struct for CIK (v12)
v2: fix up for latest reset changes
v3: use CP for pt updates for now
v4: update for 2 level PTs
v5: update for ib_parse removal
v6: vm_flush api change
v7: rebase
v8: fix gfx ring function pointers
v9: fix vm_set_page function params
v10: update for compute changes
v11: cleanup for release
v12: update rptr/wptr callbacks
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 18:43:30 +0000 (14:43 -0400)]
drm/radeon/cik: add support for golden register init
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 18:26:16 +0000 (14:26 -0400)]
drm/radeon/cik: add support for compute interrupts
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 11 Apr 2013 13:36:17 +0000 (09:36 -0400)]
drm/radeon: fix up ring functions for compute rings
The compute rings use RELEASE_MEM rather then EOP
packets for writing fences and there is no SYNC_PFP_ME
packet on the compute rings.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Mon, 3 Jun 2013 15:21:58 +0000 (11:21 -0400)]
drm/radeon/cik: switch to type3 nop packet for compute rings (v2)
Type 2 packets are deprecated on CIK MEC and we should use
type 3 nop packets. Setting the count field to the max value
(0x3fff) indicates that only one dword should be skipped
like a type 2 packet.
v2: add comment to code
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Alex Deucher [Wed, 26 Jun 2013 21:37:11 +0000 (17:37 -0400)]
drm/radeon/cik: Add support for compute queues (v4)
On CIK, the compute rings work slightly differently than
on previous asics, however the basic concepts are the same.
The main differences:
- New MEC engines for compute queues
- Multiple queues per MEC:
- CI/KB: 1 MEC, 4 pipes per MEC, 8 queues per pipe = 32 queues
- KV: 2 MEC, 4 pipes per MEC, 8 queues per pipe = 64 queues
- Queues can be allocated and scheduled by another queue
- New doorbell aperture allows you to assign space in the aperture
for the wptr which allows for userspace access to queues
v2: add wptr shadow, fix eop setup
v3: fix comment
v4: switch to new callback method
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Alex Deucher [Mon, 4 Mar 2013 17:47:46 +0000 (12:47 -0500)]
drm/radeon: implement simple doorbell page allocator
The doorbell aperture is a PCI BAR whose pages can be
mapped to compute resources for things like wptrs
for userspace queues.
This patch maps the BAR and sets up a simple allocator
to allocate pages from the BAR.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 29 Jan 2013 19:10:56 +0000 (14:10 -0500)]
drm/radeon: use callbacks for ring pointer handling (v3)
Add callbacks to the radeon_asic struct to handle
rptr/wptr fetchs and wptr updates.
We currently use one version for all rings, but this
allows us to override with a ring specific versions.
Needed for compute rings on CIK.
v2: udpate as per Christian's comments
v3: fix some rebase cruft
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 29 Jan 2013 15:44:22 +0000 (10:44 -0500)]
drm/radeon/cik: add srbm_select function
Allows us to select instanced registers based on:
- ME (micro engine
- Pipe
- Queue
- VMID
Switch MC setup to use this new function.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Christian König [Tue, 9 Apr 2013 17:39:21 +0000 (13:39 -0400)]
drm/radeon: add UVD support for CIK (v3)
v2: agd5f: fix clock dividers setup for bonaire
v3: agd5f: rebase
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 19 Feb 2013 19:35:34 +0000 (14:35 -0500)]
drm/radeon: update radeon_atom_get_clock_dividers for CIK
CIK uses a slightly different variant of the table structs
and params.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 7 Jun 2013 15:50:12 +0000 (11:50 -0400)]
drm/radeon: update radeon_atom_get_clock_dividers() for SI
SI uses v5 of the command table and uses a different table
for memory PLLs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 3 Apr 2013 23:28:32 +0000 (19:28 -0400)]
drm/radeon/cik: add pcie_port indirect register accessors
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 17:32:18 +0000 (13:32 -0400)]
drm/radeon: add get_xclk() callback for CIK
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 20 Apr 2012 16:39:49 +0000 (12:39 -0400)]
drm/radeon: add indirect register accessors for SMC registers
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 16:59:51 +0000 (12:59 -0400)]
drm/radeon: update CIK soft reset
Update to the newer programming model.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 19 Dec 2012 03:17:00 +0000 (22:17 -0500)]
drm/radeon: add get_gpu_clock_counter() callback for cik
Used for GPU clock counter snapshots.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 6 Jul 2012 21:40:32 +0000 (17:40 -0400)]
drm/radeon: Update radeon_info_ioctl for CIK (v2)
v2: rebase changes, fix a couple missed cases
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 25 Jul 2012 16:45:16 +0000 (12:45 -0400)]
drm/radeon: add SS override support for KB/KV
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 19 Dec 2012 03:11:51 +0000 (22:11 -0500)]
drm/radeon: use frac fb div on DCE8
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 5 Feb 2013 16:58:11 +0000 (11:58 -0500)]
drm/radeon: Handle PPLL0 powerdown on DCE8
Only Bonaire has PPLL0.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 14 Sep 2012 15:57:21 +0000 (11:57 -0400)]
drm/radeon: add support pll selection for DCE8 (v4)
v2: make PPLL0 is available for non-DP on CI
v3: rebase changes, update documentation
v4: fix kabini
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 13 Jul 2012 15:04:37 +0000 (11:04 -0400)]
drm/radeon: update DISPCLK programming for DCE8
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 24 Jul 2012 23:03:24 +0000 (19:03 -0400)]
drm/radeon/atom: add support for new DVO tables
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 6 Sep 2012 18:32:06 +0000 (14:32 -0400)]
drm/radeon/atom: add DCE8 encoder support
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 11 Jul 2012 22:38:29 +0000 (18:38 -0400)]
drm/radeon/dce8: crtc_set_base updates
Some new fields and DESKTOP_HEIGHT register moved.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 11 Jul 2012 22:02:10 +0000 (18:02 -0400)]
drm/radeon/dce8: properly handle interlaced timing
The register bits changed on DCE8 compared to previous
families.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 24 Jan 2013 15:06:33 +0000 (10:06 -0500)]
drm/radeon/cik: add hw cursor support (v2)
CIK (DCE8) hw cursors are programmed the same as evergreen
(DCE4) with the following caveats:
- cursors are now 128x128 pixels
- new alpha blend enable bit
v2: rebase
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 20 Jul 2012 21:13:13 +0000 (17:13 -0400)]
drm/radeon/dce8: add support for display watermark setup
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 7 Jun 2013 15:41:05 +0000 (11:41 -0400)]
drm/radeon: update power state parsing for CI
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 19 Dec 2012 03:07:14 +0000 (22:07 -0500)]
drm/radeon: handle the integrated thermal controller on CI
No support for reading the temperature yet.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 24 Jul 2012 22:44:47 +0000 (18:44 -0400)]
drm/radeon: atombios power table updates (v2)
v2: further updates
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 13 Jul 2012 13:59:40 +0000 (09:59 -0400)]
drm/radeon: upstream atombios.h updates (v2)
v2: further updates
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 13 Jul 2012 13:39:44 +0000 (09:39 -0400)]
drm/radeon: upstream ObjectID.h updates (v2)
v2: further updates
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 17 Aug 2012 15:48:29 +0000 (11:48 -0400)]
drm/radeon/cik: fill in startup/shutdown callbacks (v5)
v2: update to latest driver changes
v3: properly tear down vm on suspend
v4: fix up irq init ordering
v5: remove outdated comment
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Alex Deucher [Fri, 31 Aug 2012 15:00:53 +0000 (11:00 -0400)]
drm/radeon/cik: add support for doing async VM pt updates (v5)
Async page table updates using the sDMA engine. sDMA has a
special packet for updating entries for contiguous pages
that reduces overhead.
v2: add support for and use the CP for now.
v3: update for 2 level PTs
v4: rebase, fix DMA packet
v5: switch to using an IB
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Mon, 22 Oct 2012 17:04:03 +0000 (13:04 -0400)]
drm/radeon: implement async vm_flush for the sDMA (v6)
Update the page table base address and flush the
VM TLB using the sDMA.
V2: update for 2 level PTs
V3: update vm flush
V4: update SH_MEM* regs
V5: switch back to old style VM TLB invalidate
V6: fix packet formatting
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 16:47:11 +0000 (12:47 -0400)]
drm/radeon/cik: add support for sDMA dma engines (v8)
CIK has new asynchronous DMA engines called sDMA
(system DMA). Each engine supports 1 ring buffer
for kernel and gfx and 2 userspace queues for compute.
TODO: fill in the compute setup.
v2: update to the latest reset code
v3: remove ib_parse
v4: fix copy_dma()
v5: drop WIP compute sDMA queues
v6: rebase
v7: endian fixes for IB
v8: cleanup for release
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 6 Sep 2012 18:24:48 +0000 (14:24 -0400)]
drm/radeon/cik: log and handle VM page fault interrupts
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 9 Nov 2012 15:45:57 +0000 (10:45 -0500)]
drm/radeon: add support for interrupts on CIK (v5)
Todo:
- handle interrupts for compute queues
v2: add documentation
v3: update to latest reset code
v4: update to latest illegal CP handling
v5: fix missing break in interrupt handler switch statement
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 9 Nov 2012 15:44:08 +0000 (10:44 -0500)]
drm/radeon: Add support for RLC init on CIK (v4)
RLC handles the interrupt controller and other tasks
on the GPU.
v2: add documentation
v3: update programming sequence
v4: additional setup
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 31 Aug 2012 14:37:47 +0000 (10:37 -0400)]
drm/radeon: implement async vm_flush for the CP (v7)
Update the page table base address and flush the
VM TLB using the CP.
v2: update for 2 level PTs
v3: use new packet for invalidate
v4: update SH_MEM* regs when flushing the VM
v5: add pfp sync, go back to old style vm TLB invalidate
v6: fix hdp flush packet count
v7: use old style HDP flush
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 20 Jul 2012 18:41:35 +0000 (14:41 -0400)]
drm/radeon: add ring and IB tests for CIK (v3)
v2: add documenation
v3: update the latest ib changes
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 5 Jul 2012 15:45:40 +0000 (11:45 -0400)]
drm/radeon: add IB and fence dispatch functions for CIK gfx (v7)
For gfx ring only. Compute is still todo.
v2: add documentation
v3: update to latest reset changes, integrate emit update patch.
v4: fix count on wait_reg_mem for HDP flush
v5: use old hdp flush method for fence
v6: set valid bit for IB
v7: cleanup for release
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 19 Dec 2012 02:47:44 +0000 (21:47 -0500)]
drm/radeon: Add CP init for CIK (v7)
Sets up the GFX ring and loads ucode for GFX and Compute.
Todo:
- handle compute queue setup.
v2: add documentation
v3: integrate with latest reset changes
v4: additional init fixes
v5: scratch reg write back no longer supported on CIK
v6: properly set CP_RB0_BASE_HI
v7: rebase
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 29 Jun 2012 23:44:04 +0000 (19:44 -0400)]
drm/radeon: add support mc ucode loading on CIK (v2)
Load the GDDR5 ucode and train the links.
v2: update ucode
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 19 Dec 2012 02:43:07 +0000 (21:43 -0500)]
drm/radeon: add initial ucode loading for CIK (v5)
Currently the driver required 6 sets of ucode:
1. pfp - pre-fetch parser, part of the GFX CP
2. me - micro engine, part of the GFX CP
3. ce - constant engine, part of the GFX CP
4. rlc - interrupt, etc. controller
5. mc - memory controller (discrete cards only)
6. mec - compute engines, part of Compute CP
V2: add documentation
V3: update MC ucode
V4: rebase
V5: update mc ucode
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 18 Sep 2012 20:06:01 +0000 (16:06 -0400)]
drm/radeon/cik: stop page faults from hanging the system (v2)
Redirect invalid memory accesses to the default page
instead of locking up the memory controller.
v2: rebase on top of 2 level PTs
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 16:45:26 +0000 (12:45 -0400)]
drm/radeon: add support for MC/VM setup on CIK (v6)
The vm callbacks are the same as the SI ones right now
(same regs and bits). We could share the SI variants, and
I may yet do that, but I figured I would add CIK specific
ones for now in case we need to change anything.
V2: add documentation, minor fixes.
V3: integrate vram offset fixes for APUs
V4: enable 2 level VM PTs
V5: index SH_MEM_* regs properly
V6: add ib_parse()
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 16:43:41 +0000 (12:43 -0400)]
drm/radeon: Add support for CIK GPU reset (v2)
v2: split soft reset into compute and gfx. Still need
to make reset more fine grained, but this should be a
start.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Tue, 9 Apr 2013 16:41:24 +0000 (12:41 -0400)]
drm/radeon: add gpu init support for CIK (v9)
v2: tiling fixes
v3: more tiling fixes
v4: more tiling fixes
v5: additional register init
v6: rebase
v7: fix gb_addr_config for KV/KB
v8: drop wip KV bits for now, add missing config reg
v9: fix cu count on Bonaire
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Wed, 19 Dec 2012 02:24:37 +0000 (21:24 -0500)]
drm/radeon: adapt to PCI BAR changes on CIK
register BAR is now at PCI BAR 5.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 7 Jun 2013 15:37:11 +0000 (11:37 -0400)]
drm/radeon: add DCE8 macro for CIK
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 7 Jun 2013 15:36:11 +0000 (11:36 -0400)]
drm/radeon: add CIK chip families
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 14 Jun 2013 13:13:52 +0000 (09:13 -0400)]
drm/radeon: add a reset work handler
New asics support non-privileged IBs. This allows us
to skip IB checking in the driver since the hardware
will check the command buffers for us. When using
non-privileged IBs, if the CP encounters an illegal
register in the command stream, it will halt and generate
an interrupt. The CP needs to be reset to continue. For now
just do a full GPU reset when this happens.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Mon, 10 Jun 2013 13:57:07 +0000 (09:57 -0400)]
drm/radeon: add backlight quirk for hybrid mac
Mac laptops with multiple GPUs apparently use the gmux
driver for backlight control. Don't register a radeon
backlight interface. We may need to add other pci ids
for other hybrid mac laptops.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=65377
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Alex Deucher [Fri, 7 Jun 2013 14:41:03 +0000 (10:41 -0400)]
drm/radeon: fix AVI infoframe generation
- remove adding 2 to checksum, this is incorrect.
This was incorrectly introduced in:
92db7f6c860b8190571a9dc1fcbc16d003422fe8
http://lists.freedesktop.org/archives/dri-devel/2011-December/017717.html
However, the off by 2 was due to adding the version twice.
From the examples in the URL above:
[Rafał Miłecki][RV620] fglrx:
0x7454: 00 A8 5E 79 R600_HDMI_VIDEOINFOFRAME_0
0x7458: 00 28 00 10 R600_HDMI_VIDEOINFOFRAME_1
0x745C: 00 48 00 28 R600_HDMI_VIDEOINFOFRAME_2
0x7460: 02 00 00 48 R600_HDMI_VIDEOINFOFRAME_3
===================
(0x82 + 0x2 + 0xD) + 0x1F8 = 0x289
-0x289 = 0x77
However, the payload sum is not 0x1f8, it's 0x1f6.
00 + A8 + 5E + 00 +
00 + 28 + 00 + 10 +
00 + 48 + 00 + 28 +
00 + 48 =
0x1f6
Bits 25:24 of HDMI_VIDEOINFOFRAME_3 are the packet version, not part
of the payload. So the total would be:
(0x82 + 0x2 + 0xD) + 0x1f6 = 0x287
-0x287 = 0x79
- properly emit the AVI infoframe version. This was not being
emitted previous which is probably what caused the issue above.
This should fix blank screen when HDMI audio is enabled on
certain monitors.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Cc: Rafał Miłecki <zajec5@gmail.com>
Alex Deucher [Fri, 7 Jun 2013 14:04:54 +0000 (10:04 -0400)]
drm/radeon: fix UVD on big endian
This fixes the kernel side so that the ring should come
up and ring and IB tests should work. The userspace
UVD drivers will also need big endian fixes.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Jerome Glisse [Thu, 6 Jun 2013 21:51:21 +0000 (17:51 -0400)]
drm/radeon: fix write back suspend regression with uvd v2
UVD ring can't use scratch thus it does need writeback buffer to keep
a valid address or radeon_ring_backup will trigger a kernel fault.
It's ok to not unpin the write back buffer on suspend as it leave in
gtt and thus does not need eviction.
v2: Fix the uvd case.
Reported and tracked by Wojtek <wojtask9@wp.pl>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Jerome Glisse [Thu, 6 Jun 2013 16:41:17 +0000 (12:41 -0400)]
drm/radeon: do not try to uselessly update virtual memory pagetable
If a buffer is never bound to a virtual memory pagetable than don't try
to unbind it. Only drawback is that we don't update the pagetable when
unbinding the ib pool buffer which is fine because it only happens at
suspend or module unload/shutdown.
Fixes spurious messages about buffers without VM mappings. E.g.:
radeon 0000:01:00.0: bo
ffff88020afac400 don't has a mapping in vm
ffff88021ca2b900
Cc: stable@kernel.org
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Dave Airlie [Tue, 11 Jun 2013 09:38:27 +0000 (19:38 +1000)]
Merge tag 'drm-intel-fixes-2013-06-11' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes
Daniel writes:
Just tiny regression fixes here:
- Two fixes to fix sdvo hotplug which broke in the hpd storm detection
work.
- One fix to patch-up the sdvo lvds regression fixer from the last pull -
we need to prefer the vbt mode over edid modes.
* tag 'drm-intel-fixes-2013-06-11' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: prefer VBT modes for SVDO-LVDS over EDID
drm/i915: Enable hotplug interrupts after querying hw capabilities.
drm/i915: Fix hotplug interrupt enabling for SDVOC
Dave Airlie [Mon, 10 Jun 2013 22:16:10 +0000 (08:16 +1000)]
Merge branch 'gma500-fixes' of git://github.com/patjak/drm-gma500 into drm-fixes
Patrik writes:
Two fixes for memory leaks split into Cedarview and Poulsbo versions,
and a fix for properly setting the pipe base when using fbdev. It's on
my todo-list to start unifying the chips since they are very similar,
but until then I'd like to split them up in case there are side-effects
on Cedarview that I cannot currently test.
airled: Verified pull from github matches what I expected.
* 'gma500-fixes' of git://github.com/patjak/drm-gma500:
drm/gma500/cdv: Fix cursor gem obj referencing on cdv
drm/gma500/psb: Fix cursor gem obj referencing on psb
drm/gma500/cdv: Unpin framebuffer on crtc disable
drm/gma500/psb: Unpin framebuffer on crtc disable
drm/gma500: Add fb gtt offset to fb base
Linus Torvalds [Mon, 10 Jun 2013 20:28:39 +0000 (13:28 -0700)]
Merge tag 'spi-v3.10-rc4' of git://git./linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few nasty issues, particularly a race with the interrupt controller
in the xilinx driver, together with a couple of more minor fixes and a
much needed move of the mailing list away from sourceforge."
* tag 'spi-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: hspi: fixup long delay time
spi: spi-xilinx: Remove ISR race condition
spi: topcliff-pch: fix error return code in pch_spi_probe()
spi: topcliff-pch: Pass correct pointer to free_irq()
spi: Move mailing list to vger
Linus Torvalds [Mon, 10 Jun 2013 20:27:46 +0000 (13:27 -0700)]
Merge tag 'stable/for-linus-3.10-rc5-tag' of git://git./linux/kernel/git/konrad/xen
Pull xen fixes from Konrad Rzeszutek Wilk:
"Two bug-fixes for regressions:
- xen/tmem stopped working after a certain combination of
modprobe/swapon was used
- cpu online/offlining would trigger WARN_ON."
* tag 'stable/for-linus-3.10-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/tmem: Don't over-write tmem_frontswap_poolid after tmem_frontswap_init set it.
xen/smp: Fixup NOHZ per cpu data when onlining an offline CPU.
Linus Torvalds [Mon, 10 Jun 2013 20:26:41 +0000 (13:26 -0700)]
Merge tag 'regmap-v3.10-rc4' of git://git./linux/kernel/git/broonie/regmap
Pull regmap fixes from Mark Brown:
"The biggest fix here is Lars-Peter's fix for custom locking callbacks
which is pretty localised but important for those devices that use the
feature. Otherwise we've got a couple of fairly small cleanups which
would have been sent sooner were it not for letting Lars-Peter's patch
soak for a while"
* tag 'regmap-v3.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: rbtree: Fixed node range check on sync
regmap: regcache: Fixup locking for custom lock callbacks
regmap: debugfs: Check return value of regmap_write()
Linus Torvalds [Mon, 10 Jun 2013 20:25:50 +0000 (13:25 -0700)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a build problem in sahara and temporarily disables two new
optimisations because of performance regressions until a permanent fix
is ready"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: sahara - fix building as module
crypto: blowfish - disable AVX2 implementation
crypto: twofish - disable AVX2 implementation
Konrad Rzeszutek Wilk [Fri, 7 Jun 2013 19:26:03 +0000 (15:26 -0400)]
xen/tmem: Don't over-write tmem_frontswap_poolid after tmem_frontswap_init set it.
Commit
10a7a0771399a57a297fca9615450dbb3f88081a ("xen: tmem: enable Xen
tmem shim to be built/loaded as a module") allows the tmem module
to be loaded any time. For this work the frontswap API had to
be able to asynchronously to call tmem_frontswap_init before
or after the swap image had been set. That was added in git
commit
905cd0e1bf9ffe82d6906a01fd974ea0f70be97a
("mm: frontswap: lazy initialization to allow tmem backends to build/run as modules").
Which means we could do this (The common case):
modprobe tmem [so calls frontswap_register_ops, no ->init]
modifies tmem_frontswap_poolid = -1
swapon /dev/xvda1 [__frontswap_init, calls -> init, tmem_frontswap_poolid is
< 0 so tmem hypercall done]
Or the failing one:
swapon /dev/xvda1 [calls __frontswap_init, sets the need_init bitmap]
modprobe tmem [calls frontswap_register_ops, -->init calls, finds out
tmem_frontswap_poolid is 0, does not make a hypercall.
Later in the module_init, sets tmem_frontswap_poolid=-1]
Which meant that in the failing case we would not call the hypercall
to initialize the pool and never be able to make any frontswap
backend calls.
Moving the frontswap_register_ops after setting the tmem_frontswap_poolid
fixes it.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Daniel Vetter [Mon, 10 Jun 2013 07:47:58 +0000 (09:47 +0200)]
drm/i915: prefer VBT modes for SVDO-LVDS over EDID
In
commit
53d3b4d7778daf15900867336c85d3f8dd70600c
Author: Egbert Eich <eich@suse.de>
Date: Tue Jun 4 17:13:21 2013 +0200
drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC
Egbert Eich fixed a long-standing bug where we simply used a
non-working i2c controller to read the EDID for SDVO-LVDS panels.
Unfortunately some machines seem to not be able to cope with the mode
provided in the EDID. Specifically they seem to not be able to cope
with a 4x pixel mutliplier instead of a 2x one, which seems to have
been worked around by slightly changing the panels native mode in the
VBT so that the dotclock is just barely above 50MHz.
Since it took forever to notice the breakage it's fairly safe to
assume that at least for SDVO-LVDS panels the VBT contains fairly sane
data. So just switch around the order and use VBT modes first.
v2: Also add EDID modes just in case, and spell Egbert correctly.
v3: Elaborate a bit more about what's going on on Chris' machine.
Cc: Egbert Eich <eich@suse.de>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65524
Cc: stable@vger.kernel.org
Reported-and-tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Sun, 9 Jun 2013 15:02:04 +0000 (16:02 +0100)]
drm/i915: Enable hotplug interrupts after querying hw capabilities.
sdvo->hotplug_active is initialised during intel_sdvo_setup_outputs(),
and so we never enabled the hotplug interrupts on SDVO as we were
checking too early.
This regression has been introduced somewhere in the hpd rework for
the storm detection and handling starting with
commit
1d843f9de4e6dc6a899b6f07f106c00da09925e6
Author: Egbert Eich <eich@suse.de>
Date: Mon Feb 25 12:06:49 2013 -0500
DRM/I915: Add enum hpd_pin to intel_encoder.
and the follow-up patches to use the new encoder->hpd_pin variable for
the different irq setup functions.
The problem is that encoder->hpd_pin was set up _before_ the output
setup was done and so before we could assess the hotplug capabilities
of the outputs on an sdvo encoder.
Reported-by: Alex Fiestas <afiestas@kde.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58405
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add regression note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Chris Wilson [Sun, 9 Jun 2013 15:02:03 +0000 (16:02 +0100)]
drm/i915: Fix hotplug interrupt enabling for SDVOC
A broken conditional would lead to SDVOC waiting upon hotplug events on
SDVOB - and so miss all activity on its SDVO port.
This regression has been introduced in
commit
1d843f9de4e6dc6a899b6f07f106c00da09925e6
Author: Egbert Eich <eich@suse.de>
Date: Mon Feb 25 12:06:49 2013 -0500
DRM/I915: Add enum hpd_pin to intel_encoder.
References: https://bugs.freedesktop.org/show_bug.cgi?id=58405
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add regression note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Linus Torvalds [Mon, 10 Jun 2013 01:01:45 +0000 (18:01 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
"This is purely regressions (though not all recent ones) or stable
material"
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Partial revert of "Context switch more PMU related SPRs"
powerpc/perf: Fix deadlock caused by calling printk() in PMU exception
powerpc/hw_breakpoints: Add DABRX cpu feature to fix 32-bit regression
powerpc/power8: Update denormalization handler
powerpc/pseries: Simplify denormalization handler
powerpc/power8: Fix oprofile and perf
powerpc/eeh: Don't check RTAS token to get PE addr
powerpc/pci: Check the bus address instead of resource address in pcibios_fixup_resources
Linus Torvalds [Mon, 10 Jun 2013 00:15:56 +0000 (17:15 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
"The biggest two fixes are fixing a compilation error with the
decompressor, and a problem with our __my_cpu_offset implementation.
Other changes are very trivial and small, which seems to be the way
for most -rc stuff."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7747/1: pcpu: ensure __my_cpu_offset cannot be re-ordered across barrier()
ARM: 7750/1: update legacy CPU ID in decompressor cache support jump table
ARM: 7743/1: compressed/head.S: work around new binutils warning
ARM: 7742/1: topology: export cpu_topology
ARM: 7737/1: fix kernel decompressor compilation error with CONFIG_DEBUG_SEMIHOSTING
Michael Ellerman [Wed, 5 Jun 2013 18:03:36 +0000 (18:03 +0000)]
powerpc: Partial revert of "Context switch more PMU related SPRs"
In commit
59affcd I added context switching of more PMU SPRs, because
they are potentially exposed to userspace on Power8. However despite me
being a smart arse in the commit message it's actually not correct. In
particular it interacts badly with a global perf record.
We will have to do something more complicated, but that will have to
wait for 3.11.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Wed, 5 Jun 2013 17:58:20 +0000 (17:58 +0000)]
powerpc/perf: Fix deadlock caused by calling printk() in PMU exception
In commit
bc09c21 "Fix finding overflowed PMC in interrupt" we added
a printk() to the PMU exception handler. Unfortunately that is not safe.
The problem is that the PMU exception may run even when interrupts are
soft disabled, aka NMI context. We do this so that we can profile parts
of the kernel that have interrupts soft-disabled.
But by calling printk() from the exception handler, we can potentially
deadlock in the printk code on logbuf_lock, eg:
[
c00000038ba575c0]
c000000000081928 .vprintk_emit+0xa8/0x540
[
c00000038ba576a0]
c0000000007bcde8 .printk+0x48/0x58
[
c00000038ba57710]
c000000000076504 .perf_event_interrupt+0x2d4/0x490
[
c00000038ba57810]
c00000000001f6f8 .performance_monitor_exception+0x48/0x60
[
c00000038ba57880]
c0000000000032cc performance_monitor_common+0x14c/0x180
--- Exception: f01 (Performance Monitor) at
c0000000007b25d4 ._raw_spin_lock_irq
+0x64/0xc0
[
c00000038ba57bf0]
c00000000007ed90 .devkmsg_read+0xd0/0x5a0
[
c00000038ba57d00]
c0000000001c2934 .vfs_read+0xc4/0x1e0
[
c00000038ba57d90]
c0000000001c2cd8 .SyS_read+0x58/0xd0
[
c00000038ba57e30]
c000000000009d54 syscall_exit+0x0/0x98
--- Exception: c01 (System Call) at
00001fffffbf6f7c
SP (
3ffff6d4de10) is in userspace
Fix it by making sure we only call printk() when we are not in NMI
context.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Cc: <stable@vger.kernel.org> # 3.9
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Thu, 16 May 2013 20:27:31 +0000 (20:27 +0000)]
powerpc/hw_breakpoints: Add DABRX cpu feature to fix 32-bit regression
When introducing support for DABRX in
4474ef0, we broke older 32-bit CPUs
that don't have that register.
Some CPUs have a DABR but not DABRX. Configuration are:
- No 32bit CPUs have DABRX but some have DABR.
- POWER4+ and below have the DABR but no DABRX.
- 970 and POWER5 and above have DABR and DABRX.
- POWER8 has DAWR, hence no DABRX.
This introduces CPU_FTR_DABRX and sets it on appropriate CPUs. We use
the top 64 bits for CPU FTR bits since only 64 bit CPUs have this.
Processors that don't have the DABRX will still work as they will fall
back to software filtering these breakpoints via perf_exclude_event().
Signed-off-by: Michael Neuling <mikey@neuling.org>
Reported-by: "Gorelik, Jacob (335F)" <jacob.gorelik@jpl.nasa.gov>
cc: stable@vger.kernel.org (v3.9 only)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Wed, 29 May 2013 21:33:19 +0000 (21:33 +0000)]
powerpc/power8: Update denormalization handler
POWER8 can take a denormalisation exception on any VSX registers.
This does the extra 32 VSX registers we don't currently handle.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Wed, 29 May 2013 21:33:18 +0000 (21:33 +0000)]
powerpc/pseries: Simplify denormalization handler
The following simplifies the denorm code by using macros to generate the long
stream of almost identical instructions.
This patch results in no changes to the output binary, but removes a lot of
lines of code.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Neuling [Tue, 4 Jun 2013 19:38:54 +0000 (19:38 +0000)]
powerpc/power8: Fix oprofile and perf
In
2ac6f42 powerpc/cputable: Fix oprofile_cpu_type on power8
we broke all power8 hw events.
This reverts this change and uses oprofile_type instead. Perf now works
on POWER8 again and oprofile will revert to using timers on POWER8.
Kudos to mpe this fix.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Gavin Shan [Wed, 5 Jun 2013 14:25:50 +0000 (14:25 +0000)]
powerpc/eeh: Don't check RTAS token to get PE addr
RTAS token "ibm,get-config-addr-info" or ibm,get-config-addr-info2"
are used to retrieve the PE address according to PCI address, which
made up of domain/bus/slot/function. If we don't have those 2 tokens,
the domain/bus/slot/function would be used as the address for EEH
RTAS operations. Some older f/w might not have those 2 tokens and
that blocks the EEH functionality to be initialized. It was introduced
by commit
e2af155c ("powerpc/eeh: pseries platform EEH initialization").
The patch skips the check on those 2 tokens so we can bring up EEH
functionality successfully. And domain/bus/slot/function will be
used as address for EEH RTAS operations.
Cc: <stable@vger.kernel.org> # v3.4+
Reported-by: Robert Knight <knight@princeton.edu>
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Tested-by: Robert Knight <knight@princeton.edu>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Kevin Hao [Wed, 5 Jun 2013 02:26:51 +0000 (02:26 +0000)]
powerpc/pci: Check the bus address instead of resource address in pcibios_fixup_resources
If a BAR has the value of 0, we would assume that it is unset yet and
then mark the resource as unset and would reassign it later. But after
commit
6c5705fe (powerpc/PCI: get rid of device resource fixups)
the pcibios_fixup_resources is invoked after the bus address was
translated to linux resource. So the value of res->start is resource
address. And since the resource and bus address may be different, we
should translate it to the bus address before doing the check.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Linus Torvalds [Sun, 9 Jun 2013 21:56:48 +0000 (14:56 -0700)]
Merge tag 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
"Improve chip detection in ADM1021 driver to avoid misdetections
This is not a critical patch, but one we'll want to have applied to
-stable, since the misdetection especially of LM84 has been causing
trouble for quite some time."
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (adm1021) Strengthen chip detection for ADM1021, LM84 and MAX1617
Patrik Jakobsson [Sun, 26 May 2013 16:44:48 +0000 (18:44 +0200)]
drm/gma500/cdv: Fix cursor gem obj referencing on cdv
The internal crtc cursor gem object pointer was never set/updated since
it was required to be set in the first place.
Fixing this will make the pin/unpin count match and prevent cursor
objects from leaking when userspace drops all references to it. Also
make sure we drop the gem obj reference on failure.
This patch only affects Cedarview chips.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Patrik Jakobsson [Sun, 26 May 2013 15:56:19 +0000 (17:56 +0200)]
drm/gma500/psb: Fix cursor gem obj referencing on psb
The internal crtc cursor gem object pointer was never set/updated since
it was required to be set in the first place.
Fixing this will make the pin/unpin count match and prevent cursor
objects from leaking when userspace drops all references to it. Also
make sure we drop the gem obj reference on failure.
This patch only affects Poulsbo chips.
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Patrik Jakobsson [Sat, 8 Jun 2013 18:23:08 +0000 (20:23 +0200)]
drm/gma500/cdv: Unpin framebuffer on crtc disable
The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Cedarview.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Patrik Jakobsson [Wed, 5 Jun 2013 12:24:01 +0000 (14:24 +0200)]
drm/gma500/psb: Unpin framebuffer on crtc disable
The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Poulsbo.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
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