kernel/drivers/gpu/drm/ttm/ttm_bo_manager.c, branch linux-4.17.y

drm/ttm: make ttm_mem_type_manager_func debug more useful

2017-08-17T19:45:59Z

Provide the drm printer directly instead of just the callback. Signed-off-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm: Improve drm_mm search (and fix topdown allocation) with rbtrees

2017-02-03T10:10:32Z

The drm_mm range manager claimed to support top-down insertion, but it was neither searching for the top-most hole that could fit the allocation request nor fitting the request to the hole correctly. In order to search the range efficiently, we create a secondary index for the holes using either their size or their address. This index allows us to find the smallest hole or the hole at the bottom or top of the range efficiently, whilst keeping the hole stack to rapidly service evictions. v2: Search for holes both high and low. Rename flags to mode. v3: Discover rb_entry_safe() and use it! v4: Kerneldoc for enum drm_mm_insert_mode. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Cc: Alex Deucher Cc: "Christian König" Cc: David Airlie Cc: Russell King Cc: Daniel Vetter Cc: Jani Nikula Cc: Sean Paul Cc: Lucas Stach Cc: Christian Gmeiner Cc: Rob Clark Cc: Thierry Reding Cc: Stephen Warren Cc: Alexandre Courbot Cc: Eric Anholt Cc: Sinclair Yeh Cc: Thomas Hellstrom Reviewed-by: Alex Deucher Reviewed-by: Sinclair Yeh # vmwgfx Reviewed-by: Lucas Stach #etnaviv Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170202210438.28702-1-chris@chris-wilson.co.uk

drm/mm: Convert to drm_printer

2016-12-30T11:08:28Z

Including all drivers. I thought about keeping small compat functions to avoid having to change all drivers. But I really like the drm_printer idea, so figured spreading it more widely is a good thing. v2: Review from Chris: - Natural argument order and better name for drm_mm_print. - show_mm() macro in the selftest. Cc: Rob Clark Cc: Russell King Cc: Alex Deucher Cc: Christian König Cc: Lucas Stach Cc: Tomi Valkeinen Cc: Thierry Reding Cc: Jyri Sarha Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1483009764-8281-1-git-send-email-daniel.vetter@ffwll.ch

drm/ttm: use designated initializers

2016-12-18T13:48:26Z

Prepare to mark sensitive kernel structures for randomization by making sure they're using designated initializers. These were identified during allyesconfig builds of x86, arm, and arm64, with most initializer fixes extracted from grsecurity. Signed-off-by: Kees Cook Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20161217010011.GA140300@beast

drm/ttm: Use only DRM_MM_SEARCH_BELOW for TTM_PL_FLAG_TOPDOWN

2014-11-12T16:56:33Z

DRM_MM_SEARCH_BEST gets the smallest hole which can fit the BO. That seems against the idea of TTM_PL_FLAG_TOPDOWN: * The smallest hole may be in the overall bottom of the area * If the hole isn't much larger than the BO, it doesn't make much difference whether the BO is placed at the bottom or at the top of the hole Reviewed-by: Lauri Kasanen Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/ttm: Add DRM_MM_SEARCH_BELOW for TTM_PL_FLAG_TOPDOWN

2014-11-12T16:56:32Z

If the BO should be placed at the top of the area, we should start looking for holes from the top. Reviewed-by: Lauri Kasanen Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/ttm: move fpfn and lpfn into each placement v2

2014-08-27T11:16:04Z

This allows us to more fine grained specify where to place the buffer object. v2: rebased on drm-next, add bochs changes as well Signed-off-by: Christian König Reviewed-by: Alex Deucher

drm/ttm: fix handling of TTM_PL_FLAG_TOPDOWN v2

2014-07-08T01:15:58Z

bo->mem.placement is not initialized when ttm_bo_man_get_node is called, so the flag had no effect at all. v2: change nouveau and vmwgfx as well Signed-off-by: Christian König Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie

drm: Add support for two-ended allocation, v3

2014-04-03T23:28:14Z

Clients like i915 need to segregate cache domains within the GTT which can lead to small amounts of fragmentation. By allocating the uncached buffers from the bottom and the cacheable buffers from the top, we can reduce the amount of wasted space and also optimize allocation of the mappable portion of the GTT to only those buffers that require CPU access through the GTT. For other drivers, allocating small bos from one end and large ones from the other helps improve the quality of fragmentation. Based on drm_mm work by Chris Wilson. v3: Changed to use a TTM placement flag v2: Updated kerneldoc Cc: Chris Wilson Cc: Ben Widawsky Cc: Christian König Signed-off-by: Lauri Kasanen Signed-off-by: David Airlie

drm/ttm: replace drm_mm_pre_get() by direct alloc

2013-08-07T00:15:29Z

Instead of calling drm_mm_pre_get() in a row, we now preallocate the node and then use the atomic insertion functions. This has the exact same semantics and there is no reason to use the racy pre-allocations. Note that ttm_bo_man_get_node() does not run in atomic context. Nouveau already uses GFP_KERNEL alloc in nouveau/nouveau_ttm.c in nouveau_gart_manager_new(). So we can do the same in ttm_bo_man_get_node(). Signed-off-by: David Herrmann Reviewed-by: Daniel Vetter Signed-off-by: Dave Airlie