kernel/linux.git/drivers/gpu/drm/ttm, branch v3.12.13

drm/ttm: Fix accesses through vmas with only partial coverage

2014-01-09T20:25:10+00:00

commit d386735588c3e22129c2bc6eb64fc1d37a8f805c upstream. VMAs covering a bo but that didn't start at the same address space offset as the bo they were mapping were incorrectly generating SEGFAULT errors in the fault handler. Reported-by: Joseph Dolinak Signed-off-by: Thomas Hellstrom Reviewed-by: Jakob Bornecrantz Signed-off-by: Greg Kroah-Hartman

drm/ttm: Fix ttm_bo_move_memcpy

2013-12-04T19:05:50+00:00

commit da95c788ef0c645378ffccb7060a0df1a33aee38 upstream. All error paths will want to keep the mm node, so handle this at the function exit. This fixes an ioremap failure error path. Also add some comments to make the function a bit easier to understand. Signed-off-by: Thomas Hellstrom Reviewed-by: Jakob Bornecrantz Signed-off-by: Greg Kroah-Hartman

drm/ttm: Handle in-memory region copies

2013-12-04T19:05:42+00:00

commit 9a0599ddeae012a771bba5e23393fc52d8a59d89 upstream. Fix the case where the ttm pointer may be NULL causing a NULL pointer dereference. Signed-off-by: Jakob Bornecrantz Signed-off-by: Thomas Hellström Signed-off-by: Greg Kroah-Hartman

drm/ttm: Fix memory type compatibility check

2013-12-04T19:05:42+00:00

commit 59c8e66378fb78adbcd05f0d09783dde6fef282b upstream. Also check the busy placements before deciding to move a buffer object. Failing to do this may result in a completely unneccessary move within a single memory type. Signed-off-by: Thomas Hellstrom Reviewed-by: Jakob Bornecrantz Signed-off-by: Greg Kroah-Hartman

Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

2013-09-19T02:17:44+00:00

Pull drm radeon/nouveau/core fixes from Dave Airlie: "Mostly radeon fixes, with some nouveau bios parser, ttm fix and a fix for AST driver" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (42 commits) drm/fb-helper: don't sleep for screen unblank when an oops is in progress drm, ttm Fix uninitialized warning drm/ttm: fix the tt_populated check in ttm_tt_destroy() drm/nouveau/ttm: prevent double-free in nouveau_sgdma_create_ttm() failure path drm/nouveau/bios/init: fix thinko in INIT_CONFIGURE_MEM drm/nouveau/kms: enable for non-vga pci classes drm/nouveau/bios/init: stub opcode 0xaa drm/radeon: avoid UVD corruptions on AGP cards drm/radeon: fix panel scaling with eDP and LVDS bridges drm/radeon/dpm: rework auto performance level enable drm/radeon: Fix hmdi typo drm/radeon/dpm/rs780: fix force_performance state for same sclks drm/radeon/dpm/rs780: don't enable sclk scaling if not required drm/radeon/dpm/rs780: add some sanity checking to sclk scaling drm/radeon/dpm/rs780: use drm_mode_vrefresh() drm/udl: rip out set_need_resched drm/ast: fix the ast open key function drm/radeon/dpm: add bapm callback for kb/kv drm/radeon/dpm: add bapm callback for trinity drm/radeon/dpm: add infrastructure to properly handle bapm ...

drm, ttm Fix uninitialized warning

2013-09-19T01:51:51+00:00

Fix uninitialized warning. drivers/gpu/drm/ttm/ttm_object.c: In function ‘ttm_base_object_lookup’: drivers/gpu/drm/ttm/ttm_object.c:213:10: error: ‘base’ may be used uninitialized in this function [-Werror=maybe-uninitialized] kref_put(&base->refcount, ttm_release_base); ^ drivers/gpu/drm/ttm/ttm_object.c:221:26: note: ‘base’ was declared here struct ttm_base_object *base; Signed-off-by: Prarit Bhargava Reviewed-by: Rob Clark Reviewed-by: David Herrmann Signed-off-by: Dave Airlie

drm/ttm: fix the tt_populated check in ttm_tt_destroy()

2013-09-19T01:48:30+00:00

After a vmalloc failure in ttm_dma_tt_alloc_page_directory(), ttm_dma_tt_init() will call ttm_tt_destroy() to cleanup, and end up inside the driver's unpopulate() hook when populate() has never yet been called. On nouveau, the first issue to be hit because of this is that dma_address[] may be a NULL pointer. After working around this, ttm_pool_unpopulate() may potentially hit the same issue with the pages[] array. It seems to make more sense to avoid calling unpopulate on already unpopulated TTMs than to add checks to all the implementations. Signed-off-by: Ben Skeggs Reviewed-by: Thomas Hellstrom Cc: stable@vger.kernel.org Cc: Jerome Glisse Signed-off-by: Dave Airlie

drivers: convert shrinkers to new count/scan API

2013-09-10T22:56:32+00:00

Convert the driver shrinkers to the new API. Most changes are compile tested only because I either don't have the hardware or it's staging stuff. FWIW, the md and android code is pretty good, but the rest of it makes me want to claw my eyes out. The amount of broken code I just encountered is mind boggling. I've added comments explaining what is broken, but I fear that some of the code would be best dealt with by being dragged behind the bike shed, burying in mud up to it's neck and then run over repeatedly with a blunt lawn mower. Special mention goes to the zcache/zcache2 drivers. They can't co-exist in the build at the same time, they are under different menu options in menuconfig, they only show up when you've got the right set of mm subsystem options configured and so even compile testing is an exercise in pulling teeth. And that doesn't even take into account the horrible, broken code... [glommer@openvz.org: fixes for i915, android lowmem, zcache, bcache] Signed-off-by: Dave Chinner Signed-off-by: Glauber Costa Acked-by: Mel Gorman Cc: Daniel Vetter Cc: Kent Overstreet Cc: John Stultz Cc: David Rientjes Cc: Jerome Glisse Cc: Thomas Hellstrom Cc: "Theodore Ts'o" Cc: Adrian Hunter Cc: Al Viro Cc: Artem Bityutskiy Cc: Arve Hjønnevåg Cc: Carlos Maiolino Cc: Christoph Hellwig Cc: Chuck Lever Cc: Daniel Vetter Cc: David Rientjes Cc: Gleb Natapov Cc: Greg Thelen Cc: J. Bruce Fields Cc: Jan Kara Cc: Jerome Glisse Cc: John Stultz Cc: KAMEZAWA Hiroyuki Cc: Kent Overstreet Cc: Kirill A. Shutemov Cc: Marcelo Tosatti Cc: Mel Gorman Cc: Steven Whitehouse Cc: Thomas Hellstrom Cc: Trond Myklebust Signed-off-by: Andrew Morton Signed-off-by: Al Viro

drm/ttm: kill unused functions

2013-08-18T23:36:12+00:00

Signed-off-by: Maarten Lankhorst Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie

drm/ttm: inline drm_bo_setup_vm()

2013-08-07T08:08:05+00:00

This helper is used only once and just wraps a call to drm_vma_offset_add(). Remove this unneeded indirection to safe 10 lines of code. Signed-off-by: David Herrmann Reviewed-by: Jerome Glisse Signed-off-by: Dave Airlie