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8 years agoMerge branch 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Wed, 13 Jan 2016 21:56:07 +0000 (07:56 +1000)]
Merge branch 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-next

A few more misc things for radeon and amdgpu for 4.5:
- TTM fixes for imported buffers
- amdgpu fixes to avoid -ENOMEM in CS ioctl
- CZ UVD and VCE clock force options for debugging video issues
- A couple of ACP prerequisites
- Misc fixes

* 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: validate duplicates first
  drm/amdgpu: move VM page tables to the LRU end on CS v2
  drm/ttm: add ttm_bo_move_to_lru_tail function v2
  drm/ttm: fix adding foreign BOs to the swap LRU
  drm/ttm: fix adding foreign BOs to the LRU during init v2
  drm/radeon: use kobj_to_dev()
  drm/amdgpu: use kobj_to_dev()
  drm/amdgpu/cz: force vce clocks when sclks are forced
  drm/amdgpu/cz: force uvd clocks when sclks are forced
  drm/amdgpu/cz: add code to enable forcing VCE clocks
  drm/amdgpu/cz: add code to enable forcing UVD clocks
  drm/amdgpu: fix lost sync_to if scheduler is enabled.
  drm/amd/powerplay: fix static checker warning for return meaningless value.
  drm/amdgpu: add irq domain support
  drm/amdgpu/cgs: add an interface to access PCI resources

8 years agodrm/amdgpu: validate duplicates first
Christian König [Mon, 11 Jan 2016 14:35:22 +0000 (15:35 +0100)]
drm/amdgpu: validate duplicates first

Most VM BOs end up in the duplicates list, validate it
first make -ENOMEM less likely.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <David1.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: move VM page tables to the LRU end on CS v2
Christian König [Mon, 11 Jan 2016 14:35:21 +0000 (15:35 +0100)]
drm/amdgpu: move VM page tables to the LRU end on CS v2

This makes it less likely to run into an ENOMEM because
VM page tables are evicted last.

v2: move the BOs in the LRU tail after validation

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/ttm: add ttm_bo_move_to_lru_tail function v2
Christian König [Mon, 11 Jan 2016 14:35:20 +0000 (15:35 +0100)]
drm/ttm: add ttm_bo_move_to_lru_tail function v2

This allows the drivers to move a BO to the end of the LRU
without removing and adding it again.

v2: Make it more robust, handle pinned and swapable BOs as well.

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/ttm: fix adding foreign BOs to the swap LRU
Christian König [Mon, 11 Jan 2016 14:35:19 +0000 (15:35 +0100)]
drm/ttm: fix adding foreign BOs to the swap LRU

It doesn't make any sense to try to swap out imported BOs.

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/ttm: fix adding foreign BOs to the LRU during init v2
Christian König [Mon, 11 Jan 2016 14:35:18 +0000 (15:35 +0100)]
drm/ttm: fix adding foreign BOs to the LRU during init v2

If we import a BO with an external reservation object we don't
reserve/unreserve it. So we never add it to the LRU causing a possible
denial of service.

v2: fix typo in commit message

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/radeon: use kobj_to_dev()
Geliang Tang [Wed, 13 Jan 2016 14:48:43 +0000 (22:48 +0800)]
drm/radeon: use kobj_to_dev()

Use kobj_to_dev() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: use kobj_to_dev()
Geliang Tang [Wed, 13 Jan 2016 14:48:42 +0000 (22:48 +0800)]
drm/amdgpu: use kobj_to_dev()

Use kobj_to_dev() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/cz: force vce clocks when sclks are forced
Alex Deucher [Fri, 18 Dec 2015 16:33:30 +0000 (11:33 -0500)]
drm/amdgpu/cz: force vce clocks when sclks are forced

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/cz: force uvd clocks when sclks are forced
Alex Deucher [Fri, 18 Dec 2015 16:28:49 +0000 (11:28 -0500)]
drm/amdgpu/cz: force uvd clocks when sclks are forced

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/cz: add code to enable forcing VCE clocks
Alex Deucher [Fri, 18 Dec 2015 16:25:16 +0000 (11:25 -0500)]
drm/amdgpu/cz: add code to enable forcing VCE clocks

VCE DPM works similarly to SCLK DPM.  Add a similar interface
for VCE for forcing the VCE clocks.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/cz: add code to enable forcing UVD clocks
Alex Deucher [Fri, 18 Dec 2015 16:06:42 +0000 (11:06 -0500)]
drm/amdgpu/cz: add code to enable forcing UVD clocks

UVD DPM works similarly to SCLK DPM.  Add a similar interface
for UVD for forcing the UVD clocks.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix lost sync_to if scheduler is enabled.
Chunming Zhou [Wed, 13 Jan 2016 04:55:18 +0000 (12:55 +0800)]
drm/amdgpu: fix lost sync_to if scheduler is enabled.

when scheduler is enabled, the semaphore isn't used at all.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
8 years agodrm/amd/powerplay: fix static checker warning for return meaningless value.
Rex Zhu [Mon, 11 Jan 2016 03:25:18 +0000 (11:25 +0800)]
drm/amd/powerplay: fix static checker warning for return meaningless value.

The return value should be either negative or zero, no positive.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/powerplay: include asm/div64.h for do_div()
Stephen Rothwell [Thu, 31 Dec 2015 10:20:20 +0000 (21:20 +1100)]
drm/amdgpu/powerplay: include asm/div64.h for do_div()

Fixes: 1e4854e96c35 ("drm/amdgpu/powerplay: implement thermal control for tonga.")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Dave Airlie <airlied@redhat.com>
8 years agodrm/amdgpu: add irq domain support
Alex Deucher [Fri, 6 Nov 2015 06:29:08 +0000 (01:29 -0500)]
drm/amdgpu: add irq domain support

Hardware blocks on the GPU like ACP generate interrupts in
the GPU interrupt controller, but are driven by a separate
driver.  Add an irq domain to the GPU driver so that
blocks like ACP can register a Linux interrupt.

Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/cgs: add an interface to access PCI resources
Alex Deucher [Wed, 23 Dec 2015 16:25:43 +0000 (11:25 -0500)]
drm/amdgpu/cgs: add an interface to access PCI resources

This provides an interface to get access to the base address
of PCI resources (MMIO, DOORBELL, etc.).  Only MMIO and
DOORBELL are implemented right now.  This is necessary to
properly utilize shared drivers on platform devices.  IP
modules can use this interface to get the base address
of the resource and add any additional offset and set the
size when setting up the platform driver(s).

Acked-by: Dave Airlie <airlied@redhat.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agoMerge branch 'linux-4.5' of git://github.com/skeggsb/linux into drm-next
Dave Airlie [Mon, 11 Jan 2016 01:48:18 +0000 (11:48 +1000)]
Merge branch 'linux-4.5' of git://github.com/skeggsb/linux into drm-next

- gk20a instmem fixes / improvements
- more gm10x vs gm20x differences deal with
- better support for high-frequency hdmi modes
- pstate control interfaces moved to debugfs
- support for pcie link speed changes
- misc other fixes across the board

* 'linux-4.5' of git://github.com/skeggsb/linux: (50 commits)
  drm/nouveau/pmu: prevent falcon from acking interrupts routed to the host
  drm/nouveau/perf: change pcie speed on pstate change
  drm/nouveau/perf: add fields for pci speed and width and use it for the pstates
  drm/nouveau/bios/perf: parse the pci speed from the bios for tesla and newer cards
  drm/nouveau/pci: implement pcie speed change for kepler+
  drm/nouveau/pci: implement pcie speed change for Fermi
  drm/nouveau/pci: implement pcie speed change for tesla
  drm/nouveau/pci: implement generic code for pcie speed change
  drm/nouveau/pci: add gk104 variant
  drm/nouveau/pci: add gf106 variant
  drm/nouveau/kms: take mode_config mutex in connector hotplug path
  drm/nouveau/nouveau/perfmon: add interface files for current core voltage
  drm/nouveau/sysfs: remove pstate interface
  drm/nouveau/debugfs: add copy of sysfs pstate interface ported to debugfs
  drm/nouveau/debugfs: we need a ctrl object for debugfs
  drm/nouveau/debugfs: rename functions to indicate they are used inside drm
  drm/nouveau/debugfs: add infrastructure to add files with other fops than only read
  drm/nouveau/fifo/gf100: remove references to "daemon"
  drm/nouveau/fb/nv50: remove references to "daemon"
  drm/nouveau/clk: remove references to "daemon"
  ...

8 years agodrm/nouveau/pmu: prevent falcon from acking interrupts routed to the host
Ben Skeggs [Mon, 11 Jan 2016 00:29:08 +0000 (10:29 +1000)]
drm/nouveau/pmu: prevent falcon from acking interrupts routed to the host

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/perf: change pcie speed on pstate change
Karol Herbst [Tue, 15 Sep 2015 16:49:32 +0000 (18:49 +0200)]
drm/nouveau/perf: change pcie speed on pstate change

v2: remove error and only set link for pcie devices
v6: remove check for pcie device

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
8 years agodrm/nouveau/perf: add fields for pci speed and width and use it for the pstates
Karol Herbst [Tue, 15 Sep 2015 16:49:08 +0000 (18:49 +0200)]
drm/nouveau/perf: add fields for pci speed and width and use it for the pstates

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
8 years agodrm/nouveau/bios/perf: parse the pci speed from the bios for tesla and newer cards
Karol Herbst [Tue, 15 Sep 2015 16:47:12 +0000 (18:47 +0200)]
drm/nouveau/bios/perf: parse the pci speed from the bios for tesla and newer cards

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
8 years agodrm/nouveau/pci: implement pcie speed change for kepler+
Karol Herbst [Tue, 5 Jan 2016 20:44:52 +0000 (21:44 +0100)]
drm/nouveau/pci: implement pcie speed change for kepler+

v2: rename functions
v3: remove pcie2 accessors
v6: fix alignement and line width, also remove useless code

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
8 years agodrm/nouveau/pci: implement pcie speed change for Fermi
Karol Herbst [Tue, 5 Jan 2016 20:44:39 +0000 (21:44 +0100)]
drm/nouveau/pci: implement pcie speed change for Fermi

v5: don't set kepler func pointers
v6: fix alignment and line length

8 years agodrm/nouveau/pci: implement pcie speed change for tesla
Karol Herbst [Tue, 5 Jan 2016 20:44:18 +0000 (21:44 +0100)]
drm/nouveau/pci: implement pcie speed change for tesla

v5: don't set fermi or kepler func pointers
v6: fix alignment

8 years agodrm/nouveau/pci: implement generic code for pcie speed change
Karol Herbst [Tue, 15 Sep 2015 16:48:37 +0000 (18:48 +0200)]
drm/nouveau/pci: implement generic code for pcie speed change

v2: rename and group functions
v4: change copyright information
    move printing of pcie speeds into oneinit,
    rename all pcie functions to nvkm_pcie_*
    don't try to raise the pcie version when no higher one is supported
v5: revert Copyright changes and rename nvkm_pcie_raise_version to nvkm_pcie_set_version
v6: remove some useless pci_is_pcie checks and rework messages

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
8 years agodrm/nouveau/pci: add gk104 variant
Karol Herbst [Sun, 30 Aug 2015 18:06:16 +0000 (20:06 +0200)]
drm/nouveau/pci: add gk104 variant

v2: change email used in header
v4: change Copyright information
v5: revert Copyright changes

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
8 years agodrm/nouveau/pci: add gf106 variant
Karol Herbst [Sun, 27 Sep 2015 00:41:34 +0000 (02:41 +0200)]
drm/nouveau/pci: add gf106 variant

v2: change email used in header
v4: change Copyright information
v5: revert Copyright changes

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
8 years agodrm/nouveau/kms: take mode_config mutex in connector hotplug path
Ben Skeggs [Thu, 7 Jan 2016 22:56:51 +0000 (08:56 +1000)]
drm/nouveau/kms: take mode_config mutex in connector hotplug path

fdo#93634

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
8 years agodrm/nouveau/nouveau/perfmon: add interface files for current core voltage
Karol Herbst [Sun, 20 Sep 2015 12:40:27 +0000 (14:40 +0200)]
drm/nouveau/nouveau/perfmon: add interface files for current core voltage

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/sysfs: remove pstate interface
Karol Herbst [Thu, 30 Jul 2015 09:56:20 +0000 (11:56 +0200)]
drm/nouveau/sysfs: remove pstate interface

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/debugfs: add copy of sysfs pstate interface ported to debugfs
Karol Herbst [Thu, 30 Jul 2015 09:53:31 +0000 (11:53 +0200)]
drm/nouveau/debugfs: add copy of sysfs pstate interface ported to debugfs

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/debugfs: we need a ctrl object for debugfs
Karol Herbst [Thu, 30 Jul 2015 09:52:23 +0000 (11:52 +0200)]
drm/nouveau/debugfs: we need a ctrl object for debugfs

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/debugfs: rename functions to indicate they are used inside drm
Karol Herbst [Thu, 30 Jul 2015 22:35:42 +0000 (00:35 +0200)]
drm/nouveau/debugfs: rename functions to indicate they are used inside drm

We will need our own debugfs_init and cleanup functions, because
nouveau_drm isn't ready while the DRM ones are called by DRM.

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/debugfs: add infrastructure to add files with other fops than only read
Karol Herbst [Wed, 29 Jul 2015 11:44:21 +0000 (13:44 +0200)]
drm/nouveau/debugfs: add infrastructure to add files with other fops than only read

v2: use the same object for private data as with the drm debugfs functions

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/fifo/gf100: remove references to "daemon"
Ben Skeggs [Mon, 4 Jan 2016 02:24:46 +0000 (12:24 +1000)]
drm/nouveau/fifo/gf100: remove references to "daemon"

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/fb/nv50: remove references to "daemon"
Ben Skeggs [Mon, 4 Jan 2016 02:22:54 +0000 (12:22 +1000)]
drm/nouveau/fb/nv50: remove references to "daemon"

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/clk: remove references to "daemon"
Ben Skeggs [Mon, 4 Jan 2016 02:17:52 +0000 (12:17 +1000)]
drm/nouveau/clk: remove references to "daemon"

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/gr/gf100: provide a bit more info for various errors
Ilia Mirkin [Sat, 2 Jan 2016 22:54:51 +0000 (17:54 -0500)]
drm/nouveau/gr/gf100: provide a bit more info for various errors

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/bios: parse 8.1 Gbps DP link rate
Ben Skeggs [Sun, 20 Dec 2015 23:27:49 +0000 (09:27 +1000)]
drm/nouveau/bios: parse 8.1 Gbps DP link rate

From DCB 4.1 spec.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/ltc/gm204: split implementation from gm107
Ben Skeggs [Sat, 19 Dec 2015 06:48:34 +0000 (16:48 +1000)]
drm/nouveau/ltc/gm204: split implementation from gm107

Differences from GM10x:
- GM20x LTC count detection differs from GM10x
- GM20x init doesn't require large page size setting

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/ltc/gm107: use nvkm_mask to set cbc_ctrl1
Ben Skeggs [Sat, 19 Dec 2015 06:42:22 +0000 (16:42 +1000)]
drm/nouveau/ltc/gm107: use nvkm_mask to set cbc_ctrl1

resman and nvgpu both do this, presumably for good reason.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/ibus/gm204: split implementation from gk104
Ben Skeggs [Sat, 19 Dec 2015 06:24:10 +0000 (16:24 +1000)]
drm/nouveau/ibus/gm204: split implementation from gk104

GM20x doesn't require the priv ring timeout bumps that GK/GM10x have.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/gr/gf100-: subclass nvkm_object to store channel pointer
Ben Skeggs [Tue, 15 Dec 2015 09:22:49 +0000 (19:22 +1000)]
drm/nouveau/gr/gf100-: subclass nvkm_object to store channel pointer

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: modify nvif_unvers/nvif_unpack macros to be more obvious
Ben Skeggs [Sun, 8 Nov 2015 23:21:27 +0000 (09:21 +1000)]
drm/nouveau/nvif: modify nvif_unvers/nvif_unpack macros to be more obvious

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out client interface definitions
Ben Skeggs [Sun, 8 Nov 2015 02:26:01 +0000 (12:26 +1000)]
drm/nouveau/nvif: split out client interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out device interface definitions
Ben Skeggs [Sun, 8 Nov 2015 02:23:16 +0000 (12:23 +1000)]
drm/nouveau/nvif: split out device interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out ctxdma interface definitions
Ben Skeggs [Sun, 8 Nov 2015 02:16:40 +0000 (12:16 +1000)]
drm/nouveau/nvif: split out ctxdma interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out perfmon interface definitions
Ben Skeggs [Sun, 8 Nov 2015 02:12:15 +0000 (12:12 +1000)]
drm/nouveau/nvif: split out perfmon interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out device control interface definitions
Ben Skeggs [Sun, 8 Nov 2015 01:56:00 +0000 (11:56 +1000)]
drm/nouveau/nvif: split out device control interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out fifo interface definitions
Ben Skeggs [Sun, 8 Nov 2015 01:28:26 +0000 (11:28 +1000)]
drm/nouveau/nvif: split out fifo interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out display interface definitions
Ben Skeggs [Sun, 8 Nov 2015 00:44:19 +0000 (10:44 +1000)]
drm/nouveau/nvif: split out display interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out nvsw interface definitons
Ben Skeggs [Sun, 8 Nov 2015 00:34:50 +0000 (10:34 +1000)]
drm/nouveau/nvif: split out nvsw interface definitons

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: split out fermi interface definitions
Ben Skeggs [Sun, 8 Nov 2015 00:15:09 +0000 (10:15 +1000)]
drm/nouveau/nvif: split out fermi interface definitions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvif: move internal class identifiers to class.h
Ben Skeggs [Sun, 8 Nov 2015 00:18:19 +0000 (10:18 +1000)]
drm/nouveau/nvif: move internal class identifiers to class.h

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/gr/gm107-: make use of gpc_addr() macro for tpc ramchain setup
Ben Skeggs [Sun, 22 Nov 2015 19:28:52 +0000 (05:28 +1000)]
drm/nouveau/gr/gm107-: make use of gpc_addr() macro for tpc ramchain setup

Should be no functional change here.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/instmem/gk20a: use DMA API CPU mapping
Alexandre Courbot [Wed, 11 Nov 2015 08:07:51 +0000 (17:07 +0900)]
drm/nouveau/instmem/gk20a: use DMA API CPU mapping

Commit 69c4938249fb ("drm/nouveau/instmem/gk20a: use direct CPU access")
tried to be smart while using the DMA-API by managing the CPU mappings of
buffers allocated with the DMA-API by itself. In doing so, it relied
on dma_to_phys() which is an architecture-private function not
available everywhere. This broke the build on several architectures.

Since there is no reliable and portable way to obtain the physical
address of a DMA-API buffer, stop trying to be smart and just use the
CPU mapping that the DMA-API can provide. This means that buffers will
be CPU-mapped for all their life as opposed to when we need them, but
anyway using the DMA-API here is a fallback for when no IOMMU is
available so we should not expect optimal behavior.

This makes the IOMMU and DMA-API implementations of instmem diverge
enough that we should maybe put them into separate files...

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/instmem/gk20a: fix race conditions
Alexandre Courbot [Mon, 9 Nov 2015 07:37:53 +0000 (16:37 +0900)]
drm/nouveau/instmem/gk20a: fix race conditions

The LRU list used for recycling CPU mappings was handling concurrency
very poorly. For instance, if an instobj was acquired twice before being
released once, it would end up into the LRU list even though there is
still a client accessing it.

This patch fixes this by properly counting how many clients are
currently using a given instobj.

While at it, we also raise errors when inconsistencies are detected, and
factorize some code.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/gk20a: Add MODULE_FIRMWARE for gk20a
Nicolas Chauvet [Mon, 28 Sep 2015 15:08:13 +0000 (17:08 +0200)]
drm/nouveau/gk20a: Add MODULE_FIRMWARE for gk20a

This patch is needed by initramfs tools to detect
the required firmware files for the module.

This patch tests for either TEGRA_124_SOC or TEGRA_132_SOC
for the firmwares related to the Tegra K1 generation.

v2: move the MODULE_FIRMWARE to the nvidia_platform.c file.
 This will avoid to test for NOUVEAU_PLATFORM_DRIVER

Signed-off-by: Nicolas Chauvet <kwizart@gmail.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/fifo/gk104: fix engine status register offset
Vince Hsu [Mon, 16 Nov 2015 07:38:30 +0000 (15:38 +0800)]
drm/nouveau/fifo/gk104: fix engine status register offset

The offset should be 8 on Kepler and later.

Signed-off-by: Vince Hsu <vinceh@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/ce/gk104: attempt at better handling of LAUNCHERR
Ben Skeggs [Wed, 11 Nov 2015 03:06:10 +0000 (13:06 +1000)]
drm/nouveau/ce/gk104: attempt at better handling of LAUNCHERR

Very rough, no idea how correct it is at this point, but it prevents
getteximage-depth from piglit from hanging the GPU.

v2: updated with NV_PCE_FE_LAUNCHERR_REPORT values provided by NVIDIA

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/fifo/gf100: fix race condition when updating engine runlists
Ben Skeggs [Wed, 11 Nov 2015 00:07:22 +0000 (10:07 +1000)]
drm/nouveau/fifo/gf100: fix race condition when updating engine runlists

Similar in spirit to the gk104 fix with a similar title.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/fifo/gk104: fix race condition when updating engine runlists
Ben Skeggs [Tue, 10 Nov 2015 23:37:05 +0000 (09:37 +1000)]
drm/nouveau/fifo/gk104: fix race condition when updating engine runlists

The CPU-side tracking of engine runlists was not protected by a lock,
leading to list corruption, eventually causing runlist_update() to
overrun the GPU-side runlist, triggering an OOPS.

Fixes some of the issues noticed during parallel piglit runs.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/nvkm: add/remove 0's to make 7 (or 9)-nibble constants use 8 nibbles
Ilia Mirkin [Thu, 5 Nov 2015 07:33:40 +0000 (02:33 -0500)]
drm/nouveau/nvkm: add/remove 0's to make 7 (or 9)-nibble constants use 8 nibbles

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/kms: no need to check for empty edid before drm_detect_hdmi_monitor
Ilia Mirkin [Wed, 4 Nov 2015 02:14:26 +0000 (21:14 -0500)]
drm/nouveau/kms: no need to check for empty edid before drm_detect_hdmi_monitor

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/core: fix return in error path of device probe
Alexandre Courbot [Mon, 26 Oct 2015 05:55:37 +0000 (14:55 +0900)]
drm/nouveau/core: fix return in error path of device probe

We want to unlock nv_devices_mutex in this error path as well.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/kms: allow 225/297MHz pixel clocks for HDMI on Fermi/Kepler
Ilia Mirkin [Wed, 4 Nov 2015 02:00:11 +0000 (21:00 -0500)]
drm/nouveau/kms: allow 225/297MHz pixel clocks for HDMI on Fermi/Kepler

Some Fermi's apparently alow allow 297MHz clocks, so create a parameter
which allows end-users to set it themselves until we have a reliable way
to determine the board's maximum pixel clocks.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agodrm/nouveau/disp: activate dual link TMDS links only when possible
Hauke Mehrtens [Wed, 4 Nov 2015 02:00:10 +0000 (21:00 -0500)]
drm/nouveau/disp: activate dual link TMDS links only when possible

Without this patch a pixel clock rate above 165 MHz on a TMDS link is
assumed to be dual link. This is true for DVI, but not for HDMI. HDMI
supports no dual link, but it supports pixel clock rates above 165 MHz.
Only activate Dual Link mode when it is actually possible and requested.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
[imirkin: check for hdmi monitor for computing proto, use sor ctrl to
 enable extra config bit]
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
8 years agoMerge branch 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Mon, 11 Jan 2016 00:00:38 +0000 (10:00 +1000)]
Merge branch 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-next

Misc fixes for amdgpu and radeon for 4.5.  The bulk of the changes
are smatch fixes and cleanups.  This also includes the DP MST fixes
from Mykola.  Beyond that some fixes from Christian to avoid -ENOMEM
errors in some corner cases in the CS ioctl, some suspend and resume
fixes, and some powerplay fixes.

* 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux: (33 commits)
  drm/radeon: fix trivial typo in warning message
  radeon: r100: Silence 'may be used uninitialized' warnings
  drm/amdgpu: add warning to amdgpu_bo_gpu_offset() v2
  drm/amd/powerplay: implement power down asic task for CZ
  drm/amd/powerplay: enable power down asic task. (v2)
  drm/amd/powerplay: enable set boot state task
  drm/amd/powerplay: add thermal control task when resume.
  drm/amdgpu: fix hex/decimal bug when show gpu load.
  drm/amdgpu: Show gpu load when display gpu performance for Fiji of VI.
  drm/amdgpu: Show gpu load when display gpu performance for Ci.
  drm/amd/powerplay: Reload and initialize the smc firmware on powerplay resume.
  drm/amd/powerplay: add powerplay valid check to avoid null point. (v2)
  drm/amd/powerplay: fix Smatch static checker warnings
  drm/amd/powerplay: fix Smatch static checker warnings with indenting (v2)
  drm/amd/powerplay: fix bug that NULL checks are reversed.
  amdgpu/dce11:  Add test for crtc < 0 to various DCEv11 functions
  amdgpu/dce11: Remove division from dce_v11_0_vblank_wait()
  amdgpu/vce3: Simplify vce_v3_0_hw_init and ensure both rings default to not ready.
  amdgpu/vce3: Remove magic constants from harvest register masks.
  amdgpu/vce3: Simplify vce_v3_0_process_interrupt()
  ...

8 years agodrm/radeon: fix trivial typo in warning message
Alexandre Demers [Fri, 8 Jan 2016 00:22:44 +0000 (19:22 -0500)]
drm/radeon: fix trivial typo in warning message

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agoradeon: r100: Silence 'may be used uninitialized' warnings
Tim Gardner [Thu, 7 Jan 2016 17:31:32 +0000 (10:31 -0700)]
radeon: r100: Silence 'may be used uninitialized' warnings

  CC [M]  drivers/gpu/drm/radeon/r100.o
In file included from drivers/gpu/drm/radeon/radeon_mode.h:37:0,
                 from drivers/gpu/drm/radeon/radeon.h:80,
                 from drivers/gpu/drm/radeon/r100.c:33:
drivers/gpu/drm/radeon/r100.c: In function 'r100_bandwidth_update':
include/drm/drm_fixed.h:64:13: warning: 'crit_point_ff.full' may be used uninitialized in this function [-Wmaybe-uninitialized]
  u64 tmp = ((u64)A.full << 13);
             ^
drivers/gpu/drm/radeon/r100.c:3153:63: note: 'crit_point_ff.full' was declared here
  fixed20_12 peak_disp_bw, mem_bw, pix_clk, pix_clk2, temp_ff, crit_point_ff;
                                                               ^
drivers/gpu/drm/radeon/r100.c:3583:42: warning: 'disp_drain_rate.full' may be used uninitialized in this function [-Wmaybe-uninitialized]
     temp_ff.full = read_return_rate.full - disp_drain_rate.full;

gcc version 5.3.1 20151219 (Ubuntu 5.3.1-4ubuntu1)

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: add warning to amdgpu_bo_gpu_offset() v2
Christian König [Tue, 15 Dec 2015 10:10:30 +0000 (11:10 +0100)]
drm/amdgpu: add warning to amdgpu_bo_gpu_offset() v2

Check if there really is a valid offset for the BO.

v2: user WARN_ON_ONCE

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: implement power down asic task for CZ
Rex Zhu [Tue, 29 Dec 2015 03:23:16 +0000 (11:23 +0800)]
drm/amd/powerplay: implement power down asic task for CZ

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: enable power down asic task. (v2)
Rex Zhu [Tue, 29 Dec 2015 03:22:34 +0000 (11:22 +0800)]
drm/amd/powerplay: enable power down asic task. (v2)

v2: AGD: rebase on upstream

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: enable set boot state task
Rex Zhu [Tue, 29 Dec 2015 03:19:14 +0000 (11:19 +0800)]
drm/amd/powerplay: enable set boot state task

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: add thermal control task when resume.
Rex Zhu [Tue, 29 Dec 2015 03:23:57 +0000 (11:23 +0800)]
drm/amd/powerplay: add thermal control task when resume.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: fix hex/decimal bug when show gpu load.
Rex Zhu [Wed, 6 Jan 2016 09:17:53 +0000 (17:17 +0800)]
drm/amdgpu: fix hex/decimal bug when show gpu load.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: Show gpu load when display gpu performance for Fiji of VI.
Rex Zhu [Wed, 6 Jan 2016 09:15:59 +0000 (17:15 +0800)]
drm/amdgpu: Show gpu load when display gpu performance for Fiji of VI.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu: Show gpu load when display gpu performance for Ci.
Rex Zhu [Wed, 6 Jan 2016 09:08:46 +0000 (17:08 +0800)]
drm/amdgpu: Show gpu load when display gpu performance for Ci.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: Reload and initialize the smc firmware on powerplay resume.
Rex Zhu [Tue, 29 Dec 2015 02:25:19 +0000 (10:25 +0800)]
drm/amd/powerplay: Reload and initialize the smc firmware on powerplay resume.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: add powerplay valid check to avoid null point. (v2)
Rex Zhu [Tue, 29 Dec 2015 05:56:03 +0000 (13:56 +0800)]
drm/amd/powerplay: add powerplay valid check to avoid null point. (v2)

In case CONFIG_DRM_AMD_POWERPLAY is defined and amdgpu.powerplay=0.
some functions in powrplay can also be called by DAL. and the input parameter is *adev.
if just check point not NULL was not enough and will lead to NULL point error.

V2: AGD: rebase on upstream

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: fix Smatch static checker warnings
Rex Zhu [Wed, 6 Jan 2016 08:48:38 +0000 (16:48 +0800)]
drm/amd/powerplay: fix Smatch static checker warnings

1. return -1 instead of -ENOMEM
2. The struct type mismatch warnings.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: fix Smatch static checker warnings with indenting (v2)
Rex Zhu [Wed, 6 Jan 2016 08:38:48 +0000 (16:38 +0800)]
drm/amd/powerplay: fix Smatch static checker warnings with indenting (v2)

v2: AGD: rebase on upstream

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: fix bug that NULL checks are reversed.
Rex Zhu [Wed, 6 Jan 2016 08:22:07 +0000 (16:22 +0800)]
drm/amd/powerplay: fix bug that NULL checks are reversed.

&& was used instead of ||.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agoamdgpu/dce11: Add test for crtc < 0 to various DCEv11 functions
Tom St Denis [Tue, 15 Dec 2015 18:03:43 +0000 (13:03 -0500)]
amdgpu/dce11:  Add test for crtc < 0 to various DCEv11 functions

To be consistent with other DCE11 functions test for crtc < 0.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
8 years agoamdgpu/dce11: Remove division from dce_v11_0_vblank_wait()
Tom St Denis [Tue, 15 Dec 2015 18:01:49 +0000 (13:01 -0500)]
amdgpu/dce11: Remove division from dce_v11_0_vblank_wait()

Mimics odd behaviour where (i++ % 100 == 0) is true in the first iteration of each loop...

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
8 years agoamdgpu/vce3: Simplify vce_v3_0_hw_init and ensure both rings default to not ready.
Tom St Denis [Tue, 15 Dec 2015 15:55:34 +0000 (10:55 -0500)]
amdgpu/vce3: Simplify vce_v3_0_hw_init and ensure both rings default to not ready.

Simplified the ring test and added logic to ensure rings are marked not ready
by default.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
8 years agoamdgpu/vce3: Remove magic constants from harvest register masks.
Tom St Denis [Mon, 4 Jan 2016 15:46:41 +0000 (10:46 -0500)]
amdgpu/vce3: Remove magic constants from harvest register masks.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
8 years agoamdgpu/vce3: Simplify vce_v3_0_process_interrupt()
Tom St Denis [Tue, 15 Dec 2015 15:42:39 +0000 (10:42 -0500)]
amdgpu/vce3: Simplify vce_v3_0_process_interrupt()

Fold two cases into one for a LOC reduction.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
8 years agoamdgpu/vce3: Simplify vce_v3_0_soft_reset()
Tom St Denis [Tue, 15 Dec 2015 15:40:16 +0000 (10:40 -0500)]
amdgpu/vce3: Simplify vce_v3_0_soft_reset()

LOC reduction and simplification.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
8 years agoamdgpu/vce3: Simplify idle and wait for idle code
Tom St Denis [Tue, 15 Dec 2015 15:35:56 +0000 (10:35 -0500)]
amdgpu/vce3: Simplify idle and wait for idle code

More LOC reductions in VCE3 code.  This patch simplifies the is_idle and
wait_for_idle logic.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
8 years agoamdgpu/vce3: Cleanup harvest config function.
Tom St Denis [Tue, 15 Dec 2015 15:21:46 +0000 (10:21 -0500)]
amdgpu/vce3: Cleanup harvest config function.

Basic LOC reduction.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
8 years agodrm/amdgpu: fix NULL in vm_grab_id while S3 back
Chunming Zhou [Tue, 29 Dec 2015 03:57:38 +0000 (11:57 +0800)]
drm/amdgpu: fix NULL in vm_grab_id while S3 back

vm_manager_fini shouldn't be in suspend phase.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
8 years agodrm/amd/powerplay: precedence bug in init_non_clock_fields()
Dan Carpenter [Mon, 4 Jan 2016 20:44:24 +0000 (23:44 +0300)]
drm/amd/powerplay: precedence bug in init_non_clock_fields()

The cast to uint8_t happens before the right shift so this always sets
.m3arb to zero.  The cast is actually a no-op so we can remove it.

Fixes: 3bace3591493 ('drm/amd/powerplay: add hardware manager sub-component')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amdgpu/cgs: cleanup some indenting
Dan Carpenter [Mon, 4 Jan 2016 20:43:47 +0000 (23:43 +0300)]
drm/amdgpu/cgs: cleanup some indenting

This code is indented too far.  Also we normally use spaces to align if
statement conditions.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/amd/powerplay: fix a reversed condition
Dan Carpenter [Mon, 4 Jan 2016 20:42:55 +0000 (23:42 +0300)]
drm/amd/powerplay: fix a reversed condition

This test was reversed so it would end up leading to a NULL dereference.

Fixes: 4630f0faae80 ('drm/amd/powerplay: add Carrizo smu support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/radeon: Drop unnecessary unsigned int < 0 check
Thierry Reding [Mon, 4 Jan 2016 17:19:12 +0000 (18:19 +0100)]
drm/radeon: Drop unnecessary unsigned int < 0 check

Unsigned integers can never be negative, so drop this check.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
8 years agodrm/dp/mst: fix in RAD element access
Mykola Lysenko [Fri, 25 Dec 2015 08:14:48 +0000 (16:14 +0800)]
drm/dp/mst: fix in RAD element access

This is needed to receive correct port
number from RAD, so MSTB could be found

Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
8 years agodrm/dp/mst: fix in MSTB RAD initialization
Mykola Lysenko [Fri, 25 Dec 2015 08:14:47 +0000 (16:14 +0800)]
drm/dp/mst: fix in MSTB RAD initialization

This fix is needed to support more then two
branch displays, so RAD address consist at
least of 2 elements

Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
8 years agodrm/dp/mst: always send reply for UP request
Mykola Lysenko [Fri, 18 Dec 2015 22:14:43 +0000 (17:14 -0500)]
drm/dp/mst: always send reply for UP request

We should always send reply for UP request in order
to make downstream device clean-up resources appropriately.

Issue was that reply for UP request was sent only once.

Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org