Merge branch 'drm-next-3.9' of git://people.freedesktop.org/~agd5f/linux into drm-next

Alex writes:
- CS ioctl cleanup and unification.  Unification of a lot of functionality
that was duplicated across multiple generates of hardware.
- Add support for Oland GPUs
- Deprecate UMS support.  Mesa and the ddx dropped support for UMS and
apparently very few people still use it since the UMS CS ioctl was broken
for several kernels and no one reported it.  It was fixed in 3.8/stable.
- Rework GPU reset.  Use the status registers to determine what blocks
to reset.  This better matches the recommended reset programming model.
This also allows us to properly reset blocks besides GFX and DMA.
- Switch the VM set page code to use an IB rather than the ring.  This
fixes overflow issues when doing large page table updates using a small
ring like DMA.
- Several small cleanups and bug fixes.

* 'drm-next-3.9' of git://people.freedesktop.org/~agd5f/linux: (38 commits)
  drm/radeon/dce6: fix display powergating
  drm/radeon: add Oland pci ids
  drm/radeon: radeon-asic updates for Oland
  drm/radeon: add ucode loading support for Oland
  drm/radeon: fill in gpu init for Oland
  drm/radeon: add Oland chip family
  drm/radeon: switch back to using the DMA ring for VM PT updates
  drm/radeon: use IBs for VM page table updates v2
  drm/radeon: don't reset the MC on IGPs/APUs
  drm/radeon: use the reset mask to determine if rings are hung
  drm/radeon: halt engines before disabling MC (si)
  drm/radeon: halt engines before disabling MC (cayman/TN)
  drm/radeon: halt engines before disabling MC (evergreen)
  drm/radeon: halt engines before disabling MC (6xx/7xx)
  drm/radeon: use status regs to determine what to reset (si)
  drm/radeon: use status regs to determine what to reset (cayman)
  drm/radeon: use status regs to determine what to reset (evergreen)
  drm/radeon: use status regs to determine what to reset (6xx/7xx)
  drm/radeon: rework GPU reset on cayman/TN
  drm/radeon: rework GPU reset on cayman/TN
  ...

1 files changed, 5 insertions, 28 deletions

diff --git a/drivers/gpu/drm/radeon/Kconfig b/drivers/gpu/drm/radeon/Kconfig
index ea92bbe3ed37..970f8e92dbb7 100644
--- a/drivers/gpu/drm/radeon/Kconfig
+++ b/drivers/gpu/drm/radeon/Kconfig
@@ -1,31 +1,8 @@
-config DRM_RADEON_KMS
-	bool "Enable modesetting on radeon by default - NEW DRIVER"
+config DRM_RADEON_UMS
+	bool "Enable userspace modesetting on radeon (DEPRECATED)"
 	depends on DRM_RADEON
-	select BACKLIGHT_CLASS_DEVICE
 	help
-	  Choose this option if you want kernel modesetting enabled by default.
+	  Choose this option if you still need userspace modesetting.
 
-	  This is a completely new driver. It's only part of the existing drm
-	  for compatibility reasons. It requires an entirely different graphics
-	  stack above it and works very differently from the old drm stack.
-	  i.e. don't enable this unless you know what you are doing it may
-	  cause issues or bugs compared to the previous userspace driver stack.
-
-	  When kernel modesetting is enabled the IOCTL of radeon/drm
-	  driver are considered as invalid and an error message is printed
-	  in the log and they return failure.
-
-	  KMS enabled userspace will use new API to talk with the radeon/drm
-	  driver. The new API provide functions to create/destroy/share/mmap
-	  buffer object which are then managed by the kernel memory manager
-	  (here TTM). In order to submit command to the GPU the userspace
-	  provide a buffer holding the command stream, along this buffer
-	  userspace have to provide a list of buffer object used by the
-	  command stream. The kernel radeon driver will then place buffer
-	  in GPU accessible memory and will update command stream to reflect
-	  the position of the different buffers.
-
-	  The kernel will also perform security check on command stream
-	  provided by the user, we want to catch and forbid any illegal use
-	  of the GPU such as DMA into random system memory or into memory
-	  not owned by the process supplying the command stream.
+	  Userspace modesetting is deprecated for quite some time now, so
+	  enable this only if you have ancient versions of the DDX drivers.