Commit Graph

5767 Commits (676462c43e97896caa891b1e0aeb27d5d4f13637)

Author SHA1 Message Date
Tobias Jakobi 676462c43e exynos/fimg2d: add g2d_move
We already have g2d_copy() which implements G2D copy
operations from one buffer to another. However we can't
do a overlapping copy operation in one buffer.

Add g2d_move() which acts like the standard memmove()
and properly handles overlapping copies.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
2015-12-18 17:42:54 +00:00
Tobias Jakobi 51fd93bc38 exynos: fimg2d: add g2d_set_direction
This allows setting the two direction registers, which specify how
the engine blits pixels. This can be used for overlapping blits,
which happen e.g. when 'moving' a rectangular region inside a
fixed buffer.

Reviewed-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
2015-12-18 17:42:54 +00:00
Tobias Jakobi 1b32e5da44 tests/exynos: use XRGB8888 for framebuffer
This matches the G2D color mode that is used in the entire code.
The previous (incorrect) RGBA8888 would only work since the
Exynos mixer did its configuration based on the bpp, and not
based on the actual pixelformat.

Reviewed-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
2015-12-18 17:42:54 +00:00
Tobias Jakobi 58a39f6ba1 tests/exynos: add fimg2d event test
This tests async processing of G2D jobs. A separate thread is spawned
to monitor the DRM fd for events and check whether a G2D job was
completed.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
2015-12-18 17:42:54 +00:00
Tobias Jakobi 60df358196 exynos/fimg2d: add g2d_config_event
This enables us to pass command buffers to the kernel which
trigger an event on the DRM fd upon completion.
The final goal is to enable asynchronous operation of the
G2D engine, similar to async page flips.

Passing the event userdata pointer through the G2D context
was chosen to not change the current API (e.g. by adding
a userdata argument to each public functions).

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
2015-12-18 17:42:54 +00:00
Tobias Jakobi 2e4b9f08c7 tests/exynos: add fimg2d performance analysis
Currently only fast solid color clear performance is measured.
A large buffer is allocated and solid color clear operations
are executed on it with randomly chosen properties (position
and size of the region, clear color). Execution time is
measured and output together with the amount of pixels
processed.

The 'simple' variant only executes one G2D command buffer at
a time, while the 'multi' variant executes multiple ones. This
can be used to measure setup/exec overhead.

The test also serves a stability check. If clocks/voltages are
too high or low respectively, the test quickly reveals this.

Tested-by: Hyungwon Hwang <human.hwang@samsung.com>
Reviewed-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
2015-12-18 17:42:54 +00:00
Tobias Jakobi 2191ed904f exynos: Introduce exynos_handle_event()
Used to handle kernel events specific to the Exynos platform.
Currently only G2D events are handled.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
2015-12-18 17:42:54 +00:00
Kristian Høgsberg Kristensen d6ffb99726 intel: Add drm_intel_bo_set_softpin_offset to intel-symbol-check
Signed-off-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
2015-12-14 11:39:19 -08:00
Kristian Høgsberg Kristensen 3b7d971020 Add tests/drmdevice to .gitignore
Signed-off-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
2015-12-14 11:39:17 -08:00
Michał Winiarski 8b4d57e7b7 intel: Add support for softpin
Softpin allows userspace to take greater control of GPU virtual address
space and eliminates the need of relocations. It can also be used to
mirror addresses between GPU and CPU (shared virtual memory).
Calls to drm_intel_bo_emit_reloc are still required to build the list of
drm_i915_gem_exec_objects at exec time, but no entries in relocs are
created. Self-relocs don't make any sense for softpinned objects and can
indicate a programming errors, thus are forbidden. Softpinned objects
are marked by asterisk in debug dumps.

Cc: Thomas Daniel <thomas.daniel@intel.com>
Cc: Kristian Høgsberg <krh@bitplanet.net>
Cc: Zou Nanhai <nanhai.zou@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2015-12-14 11:31:25 -08:00
Michel Thierry 5453f89b70 intel: add drm_intel_bo_use_48b_address_range to symbol-check test
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
Signed-off-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
2015-12-14 11:31:25 -08:00
Michel Thierry 3350add5cc intel: 48b ppgtt support (EXEC_OBJECT_SUPPORTS_48B_ADDRESS flag)
Gen8+ supports 48-bit virtual addresses, but some objects must always be
allocated inside the 32-bit address range.

In specific, any resource used with flat/heapless (0x00000000-0xfffff000)
General State Heap (GSH) or Instruction State Heap (ISH) must be in a
32-bit range, because the General State Offset and Instruction State Offset
are limited to 32-bits.

The i915 driver has been modified to provide a flag to set when the 4GB
limit is not necessary in a given bo (EXEC_OBJECT_SUPPORTS_48B_ADDRESS).
48-bit range will only be used when explicitly requested.

Callers to the existing drm_intel_bo_emit_reloc function should set the
use_48b_address_range flag beforehand, in order to use full ppgtt range.

v2: Make set/clear functions nops on pre-gen8 platforms, and use them
    internally in emit_reloc functions (Ben)
    s/48BADDRESS/48B_ADDRESS/ (Dave)
v3: Keep set/clear functions internal, no-one needs to use them directly.
v4: Don't set 48bit-support flag in emit reloc, check for ppgtt type
    before enabling set/clear function, print full offsets in debug
    statements, using port of lower_32_bits and upper_32_bits from linux
    kernel (Michał)

References: http://lists.freedesktop.org/archives/intel-gfx/2015-July/072612.html
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
Signed-off-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
2015-12-14 11:31:19 -08:00
Kristian Høgsberg Kristensen 7d74a83d22 intel: Update i915_drm.h
Copy from drm-intel-nightly a307a3a81c2bf2883457e03abcf5c9520cf452c1.

Signed-off-by: Kristian Høgsberg Kristensen <kristian.h.kristensen@intel.com>
2015-12-14 11:30:10 -08:00
Chih-Wei Huang 42f2f92059 intel: add the missing <strings.h> include
It defines the prototype of ffs that fixes the building error
on Android 6.0 64-bit image.

Signed-off-by: Chih-Wei Huang <cwhuang@linux.org.tw>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-12-01 16:48:17 +00:00
Tom St Denis c05049b420 amdgpu: Make amdgpu_cs_calculate_timeout() return something sensible on error
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2015-11-20 19:21:48 -05:00
Jammy Zhou 9c15b4aacd amdgpu: fix overflow for timeout calculation
Set the timeout to AMDGPU_TIMEOUT_INFINITE when overflow happens

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2015-11-20 19:21:48 -05:00
Emil Velikov 8913cd95b2 configure.ac: test for the same atomic function as the one we use
Unlikely that we'll hit a case where __sync_fetch_and_add is present
while __sync_add_and_fetch isn't. Regardless let's keep things sane and
consistent.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-11-16 13:52:56 +00:00
Jonathan Gray f4b83bff60 configure.ac: rework compiler builtin atomic tests
The libdrm autoconf test for atomics uses __sync_val_compare_and_swap with
the address of a function argument which triggers a gcc ICE on sparc64
with the OpenBSD system compiler.

Mark Kettenis pointed out that while other architectures probably spill the
argument onto the stack this is likely not the case on register window
architectures like SPARC and suggested passing a pointer as an argument
instead which avoids the ICE and allows the drm libraries requiring
atomics to build on sparc64 with the autoconf build.

Reported-by: Christian Weisgerber <naddy@openbsd.org>
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Matthieu Herrb <matthieu@openbsd.org>
2015-11-16 13:45:37 +00:00
Michel Dänzer c3deddd9c2 radeon: Handle surface offsets exceeding 32 bits correctly
The slice_size and bo_size fields were getting truncated to 32 bits.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-11-10 18:06:57 +09:00
Tvrtko Ursulin ce3185d345 libdrm: Use userspace compatible type in fourcc_mod_code macro
__u64 should be used instead of u64.

Kernel headers originally pulled in:

commit 8983fe5497
Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date:   Mon Aug 3 10:48:03 2015 +0100

    libdrm: Add framebuffer modifiers uapi

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: Rob Clark <robdclark@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
2015-11-05 16:11:21 -05:00
Ben Widawsky 4309bfd9f8 intel: Cleanup SKL PCI ID definitions.
This removes ones which aren't used, and adds some new ones. I kept the original
names where possible.

Cc: Kristian Høgsberg <krh@bitplanet.net>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2015-11-03 11:19:13 -08:00
Ben Widawsky cad0e03f5a intel: Add SKL GT4 PCI IDs
Cc: Kristian Høgsberg <krh@bitplanet.net>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ben Widawsky <benjamin.widawsky@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
2015-11-03 11:19:06 -08:00
Tom St Denis b176372af4 amdgpu: Cleanly handle ENOMEM on result in amdgpu_bo_list_create()
Move the allocation of result prior to the IOCTL so we can cleanly
backtrack if the allocation fails.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-10-22 12:36:55 -04:00
Tom St Denis 1a6a8f34a0 amdgpu: Fix use-after-free bug in vamgr_deinit
This patch fixes a use-after-free bug in the vamgr_deinit function.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-10-22 12:36:38 -04:00
Tom St Denis 988f31ecc2 amdgpu: Unlock mutex if base_required is invalid
In the function amdgpu_vamgr_find_va() the function would return
without unlocking the mutex if the base_required offset was below
the va managers base offset.

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
2015-10-22 12:35:14 -04:00
Dave Airlie c745e541a9 drm: add virtgpu_drm.h
This is in drm-next now, so add to libdrm.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-10-21 09:21:07 +10:00
Matt Roper ba5a6ecf81 xf86drm: Handle unrecognized subsystems safely in drmGetDevice[s]()
Both drmGetDevice() and drmGetDevices() currently print a warning when
they encounter an unknown (non-PCI) subsystem type for a device node,
but they still proceed to assume that the drmDevicePtr was initialized
and try to add it to the local device array.  Add a 'continue' to the
error case handling to bypass the rest of the processing for devices we
can't handle.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-10-20 18:45:23 +01:00
Matt Roper cf0f036e3d xf86drm: Fix error handling for drmGetDevice()
Some of the error conditions in drmGetDevice() can lead to us calling
closedir(NULL) or leaking memory.  Fix these conditions the same way we
did for drmGetDevices() in commit:

        commit 8c4a1cbd98
        Author: Matt Roper <matthew.d.roper@intel.com>
        Date:   Wed Sep 30 09:30:51 2015 -0700

            xf86drm: Fix error handling for drmGetDevices()

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-10-20 18:44:58 +01:00
Michel Dänzer 3045523de2 Fix void pointer arithmetic in drmProcessPciDevice
Arithmetic on void pointers is a GCC extension.

  CC       libdrm_la-xf86drm.lo
../xf86drm.c: In function 'drmProcessPciDevice':
../xf86drm.c:3017:10: warning: pointer of type 'void *' used in arithmetic [-Wpointer-arith]
     addr += sizeof(drmDevice);
          ^
../xf86drm.c:3020:10: warning: pointer of type 'void *' used in arithmetic [-Wpointer-arith]
     addr += DRM_NODE_MAX * sizeof(void *);
          ^
../xf86drm.c:3023:14: warning: pointer of type 'void *' used in arithmetic [-Wpointer-arith]
         addr += max_node_str;
              ^
../xf86drm.c:3035:14: warning: pointer of type 'void *' used in arithmetic [-Wpointer-arith]
         addr += sizeof(drmPciBusInfo);
              ^

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-10-14 12:48:52 +09:00
Matt Roper 8c4a1cbd98 xf86drm: Fix error handling for drmGetDevices()
If the opendir() call in drmGetDevices() returns failure, we jump to an
error label that calls closedir() and then returns.  However this means
that we're calling closedir(NULL) which may not be safe on all
implementations.  We are also leaking the local_devices array that was
allocated before the opendir() call.

Fix both of these issues by jumping to an earlier error label (to free
local_devices) and guarding the closedir() call with a NULL test.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
[Emil Velikov: make the teardown symmetrical, remove the NULL check]
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-10-02 13:17:03 +01:00
Felix Janda 4031dc17bb xf86drm: include <limits.h> for PATH_MAX
fixes compilation error with musl libc and Solaris based platforms.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92082
Signed-off-by: Felix Janda <felix.janda@posteo.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-28 17:59:55 +01:00
Emil Velikov f3c6740f0c xf86drm: remove makedev() hack/workaround
Back when this was introduced commit 569da5a42eb(Merged glxmisc-3-0-0)
sys/sysmacros.h was used instead of the respecive headers (as per the
manual).

We've been handling it correctly for a little while now - in Linux, BSD
and Solaris. Thus we can drop this workaround.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:59:45 +01:00
Tobias Jakobi df21b293e9 exynos/fimg2d: remove g2d_context from public header
All functions from the public API only operation on
struct g2d_context*, so this shouldn't break too much.

Make the context private since we don't want the
user to modify its content directly. Also remove
the defines that were only used for fields of
g2d_context.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
2015-09-21 17:43:14 +01:00
Tobias Jakobi ce4a4f6e21 exynos/fimg2d: add message prefix
Add a prefix to the messages printed to the console via
printf() and fprintf() so that one can easily see where
the message comes from.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Tobias Jakobi bf666b5e99 exynos/fimg2d: make g2d_add_cmd() less heavy
The function currently checks for each added command
if an overflow of the corresponding command buffers
occurs, but none of the callers ever checks the
return value.

Since all callers are now converted to use
g2d_check_space() simplify the function.

(1) The overflow checks become asserts, so they're only
    active for debug builds. This is fine since
    g2d_add_cmd() is not part of the public API.

(2) Switch the return value to void.

(3) Explicitly state that the caller has to check
    buffer space before calling g2d_add_cmd().

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Tobias Jakobi 6a4479da71 exynos/fimg2d: remove superfluous initialization of g2d_point_val
The g2d_point_val union consists of two coordinates of 16
bits. Whenever this union is used though, both coordinates
are explicitly set. Hence prior initialization is unnecessary.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Tobias Jakobi 76d1c6b157 exynos/fimg2d: remove default case from g2d_get_blend_op()
We now validate the blending mode via g2d_validate_mode()
prior to feeding it to g2d_get_blend_op().

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Tobias Jakobi e3c97d1a24 exynos/fimg2d: add g2d_validate_xyz() functions
The G2D headers define a number of modes through enums
(like e.g. color, select, repeat, etc.).

This introduces g2d_validate_select_mode() and
g2d_validate_blending_op() which validate a
select mode or blending operation respectively.

Use this together with g2d_check_space() in
g2d_{blend,scale_and_blend}().

For this we move parameter validation to the top and
also validate the select mode of the source image and
the requested blending operation before starting
command submission.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Tobias Jakobi 2362c88251 exynos/fimg2d: add g2d_check_space()
This is going to be used to check if the command buffers have
enough space left prior to actual submission of the commands.

Use this in g2d_{solid_fill,copy,copy_with_scale}().

For this the parameter validation before buffer space
checking so that we can exit early if it fails.
Also don't reset the G2D context in this situation since
the buffers are not partially submitted anymore.

The repeat mode in g2d_copy_with_scale() is checked first
to make computation of space easier.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Tobias Jakobi 9017619714 exynos/fimg2d: simplify base address submission in g2d_scale_and_blend()
Use g2d_add_base_addr() for source and destination base
address just like all other calls.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Tobias Jakobi a8dc2e75cf exynos/fimg2d: fix empty buffer handling in g2d_flush()
Empty command buffers are no error, we just don't have
anything to do for flushing then.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Emil Velikov cec65e2fcc Fix SunOS/NetBSD atomic macro
Reported-by: Evgeny Litvinenko <evgeny.v.litvinenko@gmail.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
2015-09-21 17:43:14 +01:00
Emil Velikov 8990ed3199 tests/drmdevice: add drm{Get,Free}Device() example
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:43:11 +01:00
Emil Velikov ccedf66b65 xf86drm: add drm{Get,Free}Device
Similar interface to the *Devices() ones but they obtain/free the
information of the opened device (as given by its fd).

Note there is a fair bit of duplication between the two Get functions,
and anyone interested is more than welcome to consolidate it.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:43:08 +01:00
Emil Velikov fae59d7234 xf86drm: split out drmProcessPciDevice and drmFoldDuplicatedDevices
Will be reused in the next commit.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:43:06 +01:00
Emil Velikov 8415a00a3f xf86drm: warn on missing drmGetMinorNameForFD implementation
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:43:03 +01:00
Emil Velikov 291b2bb92c xf86drm: move ifdef __linux__ guards where needed
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:42:57 +01:00
Emil Velikov 5f68d31820 xf86drm: rework drmGetDevices()
Do a once off memory allocation for each drmDevice.

This allows us to ease the error handling and simplify the
de-duplication loop. As part of this we need to rework drmFreeDevice()
such so that it frees the relevant hunks, rather than leaving that to
the caller.

Some memory stats from the drmdevice test

before: 22 allocs, 22 frees, 66,922 bytes allocated
after:   9 allocs, 9 frees, 66,436 bytes allocated

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:42:53 +01:00
Emil Velikov 6c88173f7e util_math: add MAX3 macro
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:42:51 +01:00
Emil Velikov bc2aca9e22 xf86drm: rename drmSameDevice to drmCompareBusInfo
Move away form the boolean name, change the return value
appropriately and check if either argument is NULL.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2015-09-21 17:42:48 +01:00