linux/drivers/gpu/drm/ttm, branch v4.4

drm/ttm: Fixed a read/write lock imbalance

2015-11-26T14:47:38Z

In ttm_write_lock(), the uninterruptible path should call __ttm_write_lock() not __ttm_read_lock(). This fixes a vmwgfx hang on F23 start up. syeh: Extracted this from one of Thomas' internal patches. Cc: Signed-off-by: Thomas Hellstrom Reviewed-by: Sinclair Yeh

drm/ttm: Fix memory space allocation v2

2015-09-15T07:57:01Z

In the event that TTM doesn't find a compatible memory type for the driver's first placement choice (placement without eviction), TTM returns -EINVAL without trying the driver's second choice. This causes problems on vmwgfx when VRAM is disabled before first modeset and during VT switches when fbdev is not enabled. Fix this by also trying the driver's second choice before returning -EINVAL. v2: Also check that man->use_type is true for the driver's second choice. Fixes a bug where disallowed memory types could be used. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul Reviewed-by: Sinclair Yeh

Merge tag 'v4.2-rc7' into drm-next

2015-08-17T04:13:53Z

Linux 4.2-rc7 Backmerge master for i915 fixes

drivers: gpu: Drop unlikely before IS_ERR(_OR_NULL)

2015-08-06T12:13:07Z

IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there is no need to do that again from its callers. Drop it. Signed-off-by: Viresh Kumar Reviewed-by: Sinclair Yeh Signed-off-by: Daniel Vetter

drm/ttm: recognize ARM64 arch in ioprot handler

2015-07-24T01:51:14Z

Return proper pgprot for ARM64. This is required for objects like Nouveau fences to be mapped with expected coherency. Signed-off-by: Alexandre Courbot Signed-off-by: Dave Airlie

drm/ttm: improve uncached page deallocation.

2015-07-17T08:18:04Z

Calls to set_memory_wb() incure heavy TLB flush and IPI cost. To minimize those wait until pool grow beyond batch size before draining the pool. Signed-off-by: Jérôme Glisse Reviewed-by: Mario Kleiner Reviewed-and-Tested-by: Michel Dänzer Reviewed-by: Konrad Rzeszutek Wilk Cc: Thomas Hellstrom Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie

drm/ttm: fix uncached page deallocation to properly fill page pool v3.

2015-07-17T08:17:33Z

Current code never allowed the page pool to actualy fill in anyway. This fix it, so that we only start freeing page from the pool when we go over the pool size. Changed since v1: - Move the page batching optimization to its separate patch. Changed since v2: - Do not remove code part of the batching optimization with this patch. - Better commit message. Signed-off-by: Jérôme Glisse Reviewed-by: Mario Kleiner Reviewed-and-Tested-by: Michel Dänzer Reviewed-by: Konrad Rzeszutek Wilk Cc: Thomas Hellstrom Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie

drm/ttm: dma: Don't crash on memory in the vmalloc range

2015-06-02T07:24:49Z

dma_alloc_coherent() can return memory in the vmalloc range. virt_to_page() cannot handle such addresses and crashes. This patch detects such cases and obtains the struct page * using vmalloc_to_page() instead. Signed-off-by: Alexandre Courbot Acked-by: Konrad Rzeszutek Wilk Signed-off-by: Dave Airlie

dma-buf: cleanup dma_buf_export() to make it easily extensible

2015-04-21T09:17:16Z

At present, dma_buf_export() takes a series of parameters, which makes it difficult to add any new parameters for exporters, if required. Make it simpler by moving all these parameters into a struct, and pass the struct * as parameter to dma_buf_export(). While at it, unite dma_buf_export_named() with dma_buf_export(), and change all callers accordingly. Reviewed-by: Maarten Lankhorst Reviewed-by: Daniel Thompson Acked-by: Mauro Carvalho Chehab Acked-by: Dave Airlie Signed-off-by: Sumit Semwal

drm/ttm: device address space != CPU address space

2015-03-04T23:04:39Z

We need to store device offsets in 64 bit as the device address space may be larger than the CPU's. Fixes GPU init failures on radeons with 4GB or more of vram on 32 bit kernels. We put vram at the start of the GPU's address space so the gart aperture starts at 4 GB causing all GPU addresses in the gart aperture to get truncated. bug: https://bugs.freedesktop.org/show_bug.cgi?id=89072 [airlied: fix warning on nouveau build] Signed-off-by: Alex Deucher Cc: thellstrom@vmware.com Acked-by: Thomas Hellstrom Signed-off-by: Dave Airlie