linux-stable.git/drivers/gpu/drm/vmwgfx, branch v5.7

drm/vmwgfx: Return true in function vmw_fence_obj_signaled()

2020-05-16T04:50:37+00:00

Fix the following coccicheck warning:

drivers/gpu/drm/vmwgfx/vmwgfx_fence.c:518:9-10: WARNING: return of 0/1
in function 'vmw_fence_obj_signaled' with return type bool

Signed-off-by: Jason Yan 
Signed-off-by: Roland Scheidegger

drm/vmwgfx: remove redundant assignment to variable ret

2020-05-16T04:50:32+00:00

The variable ret is being initialized with a value that is never read
and it is being updated later with a new value. The initialization
is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King 
Signed-off-by: Roland Scheidegger

drm/vmwgfx: Fix parameter name in vmw_bo_init

2020-05-16T04:50:21+00:00

The parameter name should be interruptible instead of interuptable.

Signed-off-by: Guixiong Wei 
Signed-off-by: Roland Scheidegger

Merge branch 'ttm-transhuge' of git://people.freedesktop.org/~thomash/linux into drm-next

2020-04-02T23:07:49+00:00

Huge page-table entries for TTM

In order to reduce CPU usage [1] and in theory TLB misses this patchset enables
huge- and giant page-table entries for TTM and TTM-enabled graphics drivers.

Signed-off-by: Dave Airlie 
From: Thomas Hellstrom (VMware) 
Link: https://patchwork.freedesktop.org/patch/msgid/20200325073102.6129-1-thomas_os@shipmail.org

drm/vmwgfx: Hook up the helpers to align buffer objects

2020-03-24T17:50:35+00:00

Start using the helpers that align buffer object user-space addresses and
buffer object vram addresses to huge page boundaries.
This is to improve the chances of allowing huge page-table entries.

Cc: Andrew Morton 
Cc: Michal Hocko 
Cc: "Matthew Wilcox (Oracle)" 
Cc: "Kirill A. Shutemov" 
Cc: Ralph Campbell 
Cc: "Jérôme Glisse" 
Cc: "Christian König" 
Cc: Dan Williams 
Signed-off-by: Thomas Hellstrom (VMware) 
Reviewed-by: Roland Scheidegger 
Acked-by: Christian König

drm/vmwgfx: Introduce a huge page aligning TTM range manager

2020-03-24T17:50:12+00:00

Using huge page-table entries requires that the physical address of the
start of a buffer object is huge page size aligned.
Make a special version of the TTM range manager that accomplishes this,
but falls back to a smaller page size alignment (PUD->PMD, PMD->NORMAL)
to avoid eviction.
If other drivers want to use it in the future, it can be made a
TTM generic helper. Note that drivers can force eviction for a certain
alignment by assigning the TTM GPU alignment correspondingly.

Cc: Andrew Morton 
Cc: Michal Hocko 
Cc: "Matthew Wilcox (Oracle)" 
Cc: "Kirill A. Shutemov" 
Cc: Ralph Campbell 
Cc: "Jérôme Glisse" 
Cc: "Christian König" 
Cc: Dan Williams 
Signed-off-by: Thomas Hellstrom (VMware) 
Reviewed-by: Roland Scheidegger 
Acked-by: Christian König

drm/vmwgfx: Support huge page faults

2020-03-24T17:48:55+00:00

With vmwgfx dirty-tracking we need a specialized huge_fault
callback. Implement and hook it up.

Cc: Andrew Morton 
Cc: Michal Hocko 
Cc: "Matthew Wilcox (Oracle)" 
Cc: "Kirill A. Shutemov" 
Cc: Ralph Campbell 
Cc: "Jérôme Glisse" 
Cc: "Christian König" 
Cc: Dan Williams 
Signed-off-by: Thomas Hellstrom (VMware) 
Reviewed-by: Roland Scheidegger 
Acked-by: Christian König

drm/ttm, drm/vmwgfx: Support huge TTM pagefaults

2020-03-24T17:48:33+00:00

Support huge (PMD-size and PUD-size) page-table entries by providing a
huge_fault() callback.
We still support private mappings and write-notify by splitting the huge
page-table entries on write-access.

Note that for huge page-faults to occur, either the kernel needs to be
compiled with trans-huge-pages always enabled, or the kernel needs to be
compiled with trans-huge-pages enabled using madvise, and the user-space
app needs to call madvise() to enable trans-huge pages on a per-mapping
basis.

Furthermore huge page-faults will not succeed unless buffer objects and
user-space addresses are aligned on huge page size boundaries.

Cc: Andrew Morton 
Cc: Michal Hocko 
Cc: "Matthew Wilcox (Oracle)" 
Cc: "Kirill A. Shutemov" 
Cc: Ralph Campbell 
Cc: "Jérôme Glisse" 
Cc: "Christian König" 
Cc: Dan Williams 
Signed-off-by: Thomas Hellstrom (VMware) 
Reviewed-by: Roland Scheidegger 
Reviewed-by: Christian König

drm/vmwgfx: Use vmwgfx version 2.18 to signal SM5 compatibility

2020-03-23T21:48:57+00:00

Signed-off-by: Thomas Hellström (VMware) 
Reviewed-by: Charmaine Lee 
Reviewed-by: Brian Paul 
Reviewed-by: Roland Scheidegger 
Signed-off-by: Roland Scheidegger 
___
v2: Use 2.18 instead of 2.17

drm/vmwgfx: Add SM5 param for userspace

2020-03-23T21:48:57+00:00

Add a new param for user-space to determine if kernel module is SM5
capable.

Signed-off-by: Deepak Rawat 
Reviewed-by: Thomas Hellström (VMware) 
Reviewed-by: Roland Scheidegger 
Signed-off-by: Roland Scheidegger