Commit Graph

8 Commits

Author SHA1 Message Date
Emil Velikov c6734c689a drm/nouveau: drop drm/ prefix from include
Similar to the rest of the DRM UAPI - these are to be imported
unmodified into libdrm. In current form that's impossible.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
2016-05-13 14:06:10 +01:00
Emil Velikov 8daf6359c4 drm/nouveau: add extern C guard for the UAPI header
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Ben Skeggs <bskeggs@redhat.com>
2016-05-13 14:06:09 +01:00
Mikko Rapeli 8860487ef3 nouveau_drm.h: use __u32 and __u64 from linux/types.h
Fixes userspace compilation errors like:

drm/nouveau_drm.h:41:2: error: unknown type name ‘uint32_t’

Signed-off-by: Mikko Rapeli <mikko.rapeli@iki.fi>
2015-12-10 12:33:23 +01:00
Ben Skeggs fcf3f91c34 drm/nouveau: remove unnecessary usage of object handles
No longer required in a lot of cases, as objects are identified over NVIF
via an alternate mechanism since the rework.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-11-03 15:02:18 +10:00
Alexandre Courbot 996f545fbb drm/nouveau/gem: allow user-space to specify an object should be coherent
User-space use mappable BOs notably for fences, and expects that a
value update by the GPU will be immediatly visible through the
user-space mapping.

ARM has a property that may prevent this from happening though: memory
can be mapped multiple times only if the different mappings share the
same caching properties. However all the lowmem memory is already
identity-mapped into the kernel with cache enabled, so when user-space
requests an uncached mapping, we actually get an "undefined caching
policy" one and this has strange side-effects described on Freedesktop
bug 86690.

To prevent this from happening, allow user-space to explicitly specify
which objects should be coherent, and create such objects with the
TTM_PL_FLAG_UNCACHED flag. This will make TTM allocate memory using the
DMA API, which will fix the identify mapping and allow us to safely map
the objects to user-space uncached.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-04-14 17:00:46 +10:00
Ben Skeggs 27111a23d0 drm/nouveau: expose the full object/event interfaces to userspace
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10 05:28:18 +10:00
Ben Skeggs a4e610b5e6 drm/nouveau: use ioctl interface for abi16 grobj alloc
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10 05:13:17 +10:00
David Howells 718dcedd7e UAPI: (Scripted) Disintegrate include/drm
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
2012-10-04 18:21:50 +01:00