linux/drivers/gpu/drm/radeon/Kconfig

config DRM_RADEON_UMS
	bool "Enable userspace modesetting on radeon (DEPRECATED)"
	depends on DRM_RADEON
	help
	  Choose this option if you still need userspace modesetting.

	  Userspace modesetting is deprecated for quite some time now, so
	  enable this only if you have ancient versions of the DDX drivers.
drm/radeon: Deprecate UMS support v2 KMS support is out and stable for a couple of years now and the userspace code has deprecated or abandoned the old UMS interface. So make the KMS interface the default and deprecate the UMS interface in the kernel as well. v2: rebased on alex/drm-next-3.9-wip Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 2013-01-21 20:58:46 +08:00			`config DRM_RADEON_UMS`
			`bool "Enable userspace modesetting on radeon (DEPRECATED)"`
drm/radeon: introduce kernel modesetting for radeon hardware Add kernel modesetting support to radeon driver, use the ttm memory manager to manage memory and DRM/GEM to provide userspace API. In order to avoid backward compatibility issue and to allow clean design and code the radeon kernel modesetting use different code path than old radeon/drm driver. 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. This part of the code is still incomplete and this why we propose that patch as a staging driver addition, future security might forbid current experimental userspace to run. This code support the following hardware : R1XX,R2XX,R3XX,R4XX,R5XX (radeon up to X1950). Works is underway to provide support for R6XX, R7XX and newer hardware (radeon from HD2XXX to HD4XXX). Authors: Jerome Glisse <jglisse@redhat.com> Dave Airlie <airlied@redhat.com> Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com> 2009-06-05 20:42:42 +08:00			`depends on DRM_RADEON`
			`help`
drm/radeon: Deprecate UMS support v2 KMS support is out and stable for a couple of years now and the userspace code has deprecated or abandoned the old UMS interface. So make the KMS interface the default and deprecate the UMS interface in the kernel as well. v2: rebased on alex/drm-next-3.9-wip Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 2013-01-21 20:58:46 +08:00			`Choose this option if you still need userspace modesetting.`
drm/radeon/kms: change Kconfig text to reflect the new option. Ingo pointed out that we really don't give the user enough warning to make a decision here. So revise the Kconfig text with a better warning. Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Dave Airlie <airlied@redhat.com> 2010-02-05 17:02:24 +08:00
drm/radeon: Deprecate UMS support v2 KMS support is out and stable for a couple of years now and the userspace code has deprecated or abandoned the old UMS interface. So make the KMS interface the default and deprecate the UMS interface in the kernel as well. v2: rebased on alex/drm-next-3.9-wip Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 2013-01-21 20:58:46 +08:00			`Userspace modesetting is deprecated for quite some time now, so`
			`enable this only if you have ancient versions of the DDX drivers.`