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path: root/drivers/gpu/drm/ttm/ttm_tt.c
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* Merge remote branch 'korg/drm-core-next' into drm-next-stageDave Airlie2010-03-011-7/+11
|\ | | | | | | | | | | | | | | | | | | | | | | * korg/drm-core-next: drm/ttm: handle OOM in ttm_tt_swapout drm/radeon/kms/atom: fix shr/shl ops drm/kms: fix spelling of "CLOCK" drm/kms: fix fb_changed = true else statement drivers/gpu/drm/drm_fb_helper.c: don't use private implementation of atoi() drm: switch all GEM/KMS ioctls to unlocked ioctl status. Use drm_gem_object_[handle_]unreference_unlocked where possible drm: introduce drm_gem_object_[handle_]unreference_unlocked
| * drm/ttm: handle OOM in ttm_tt_swapoutMaarten Maathuis2010-02-251-7/+11
| | | | | | | | | | | | | | | | | | | | | | - Without this change I get a general protection fault. - Also use PTR_ERR where applicable. Signed-off-by: Maarten Maathuis <madman2003@gmail.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Acked-by: Thomas Hellstrom <thellstrom@vmware.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm/ttm: fix caching problem on non-PAT systems.Francisco Jerez2010-02-201-7/+11
|/ | | | | | | | | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=15328 This fixes a serious regression on AGP/non-PAT systems, where pages were ending up in the wrong state and slowing down the whole system. [airlied: taken this from the bug as the other option is to revert the change which caused it]. Tested-by: John W. Linville (in bug). Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: Avoid conflicting reserve_memtype during ttm_tt_set_page_caching.Francisco Jerez2010-02-011-7/+16
| | | | | | | | | | | Fixes errors like: > reserve_ram_pages_type failed 0x15b7a000-0x15b7b000, track 0x8, req 0x10 when a BO is moved between WC and UC areas. Reported-by: Xavier Chantry <shiningxc@gmail.com> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Acked-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* Merge branch 'drm-core-next' into drm-linusDave Airlie2009-12-081-0/+1
|\ | | | | | | | | | | | | | | Bring all core drm changes into 2.6.32 tree and resolve the conflict that occurs. Conflicts: drivers/gpu/drm/drm_fb_helper.c
| * drm/ttm: Export symbols needed for the vmwgfx driver.Thomas Hellstrom2009-12-071-0/+1
| | | | | | | | | | Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* | drm/radeon/kms: fix coherency issues on AGP cards.Dave Airlie2009-11-041-0/+1
|/ | | | | | | | | | | | | | | | When we are evicting from VRAM->RAM we allocate the ttm object, but we don't set the caching policy on it before blitting into it. This means on AGP we end up blitting into cached pages, and the CPU later flushes out on top of them. This was mostly seen as font corruption. The other question is why we don't evict VRAM->GTT in a lot of cases, this would save us some cache transitions since a lot of objects that are evicted from VRAM will probably end up being pulled back in a few operations later, and evicting them to system memory involves 2 unnecessary cache transitions. Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: consolidate cache flushing code in one place.Dave Airlie2009-08-271-65/+2
| | | | | | | This merges the TTM and drm cache flushing into one file in the drm core. Signed-off-by: Dave Airlie <airlied@redhat.com>
* Merge Linus master to drm-nextDave Airlie2009-08-201-6/+19
|\ | | | | | | | | | | | | | | | | | | | | linux-next conflict reported needed resolution. Conflicts: drivers/gpu/drm/drm_crtc.c drivers/gpu/drm/drm_edid.c drivers/gpu/drm/i915/intel_sdvo.c drivers/gpu/drm/radeon/radeon_ttm.c drivers/gpu/drm/ttm/ttm_bo.c
| * drm/ttm: fix highuser vs dma32 confusion.Dave Airlie2009-07-291-1/+3
| | | | | | | | | | | | | | | | DMA32 and highmem are sort of exclusive. Noticed by AndrewR on #radeon. Signed-off-by: Dave Airlie <airlied@redhat.com>
| * drm/ttm: powerpc: Fix Highmem cache flushing.Thomas Hellstrom2009-07-291-4/+10
| | | | | | | | | | | | | | | | Temporarily maps highmem pages while flushing to get a valid virtual address to flush. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * drm/ttm/radeon: add dma32 support.Dave Airlie2009-07-151-2/+7
| | | | | | | | | | | | | | | | | | This add support for using dma32 memory on gpus that really need it. Currently IGPs are left without DMA32 but we might need to change that unless we can fix rs690. Signed-off-by: Dave Airlie <airlied@redhat.com>
* | ttm: Make parts of a struct ttm_bo_device global.Thomas Hellstrom2009-08-191-7/+5
| | | | | | | | | | | | | | | | | | | | Common resources, like memory accounting and swap lists should be global and not per device. Introduce a struct ttm_bo_global to accomodate this, and register it with sysfs. Add a small sysfs interface to return the number of active buffer objects. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
* | drm/ttm: Memory accounting rework.Thomas Hellstrom2009-08-191-18/+11
|/ | | | | | | | | | | Use inclusive zones to simplify accounting and its sysfs representation. Use DMA32 accounting where applicable. Add a sysfs interface to make the heuristically determined limits readable and configurable. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
* drm: remove unused #include <linux/version.h>'sHuang Weiyi2009-06-241-1/+0
| | | | | | | | | | Remove unused #include <linux/version.h>('s) in drivers/gpu/drm/ttm/ttm_bo_util.c drivers/gpu/drm/ttm/ttm_bo_vm.c drivers/gpu/drm/ttm/ttm_tt.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm/ttm: Add some powerpc cache flush code.Michel Dänzer2009-06-191-1/+10
| | | | | | Optimise the powerpc flushing path for TTM. Signed-off-by: Dave Airlie <airlied@redhat.com>
* drm: Add the TTM GPU memory manager subsystem.Thomas Hellstrom2009-06-151-0/+635
TTM is a GPU memory manager subsystem designed for use with GPU devices with various memory types (On-card VRAM, AGP, PCI apertures etc.). It's essentially a helper library that assists the DRM driver in creating and managing persistent buffer objects. TTM manages placement of data and CPU map setup and teardown on data movement. It can also optionally manage synchronization of data on a per-buffer-object level. TTM takes care to provide an always valid virtual user-space address to a buffer object which makes user-space sub-allocation of big buffer objects feasible. TTM uses a fine-grained per buffer-object locking scheme, taking care to release all relevant locks when waiting for the GPU. Although this implies some locking overhead, it's probably a big win for devices with multiple command submission mechanisms, since the lock contention will be minimal. TTM can be used with whatever user-space interface the driver chooses, including GEM. It's used by the upcoming Radeon KMS DRM driver and is also the GPU memory management core of various new experimental DRM drivers. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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