forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

drm/i915: Expose I915_EXEC_RESOURCE_STREAMER flag and getparam

Browse source 
Ensures that the batch buffer is executed by the resource streamer.
And will let userspace know whether Resource Streamer is supported in
the kernel.

v2: Don't skip 1<<15 for the exec flags (Jani Nikula)
v3: Use HAS_RESOURCE_STREAMER macro for execbuf validation (Chris Wilson)

(from getparam patch)

v2: Update I915_PARAM_HAS_RESOURCE_STREAMER so it's after
    I915_PARAM_HAS_GPU_RESET.
v3: Only advertise RS support for hardware that supports it.
v4: Add HAS_RESOURCE_STREAMER() macro (Chris)

Testcase: igt/gem_exec_params
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
[danvet: squash in getparam patch since it'd break bisect, suggested
by Chris.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Abdiel Janulgue 2015-07-01 10:12:23 +03:00 • committed by Daniel Vetter
commit a9ed33ca07
4 changed files with 27 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

8
include/uapi/drm/i915_drm.h
View file

@ -355,6 +355,7 @@ typedef struct drm_i915_irq_wait {
#define I915_PARAM_SUBSLICE_TOTAL 33
#define I915_PARAM_EU_TOTAL 34
#define I915_PARAM_HAS_GPU_RESET 35
#define I915_PARAM_HAS_RESOURCE_STREAMER 36
typedef struct drm_i915_getparam {
int param;
@ -765,7 +766,12 @@ struct drm_i915_gem_execbuffer2 {
#define I915_EXEC_BSD_RING1 (1<<13)
#define I915_EXEC_BSD_RING2 (2<<13)
#define __I915_EXEC_UNKNOWN_FLAGS -(1<<15)
/** Tell the kernel that the batchbuffer is processed by
* the resource streamer.
*/
#define I915_EXEC_RESOURCE_STREAMER (1<<15)
#define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_RESOURCE_STREAMER<<1)
#define I915_EXEC_CONTEXT_ID_MASK (0xffffffff)
#define i915_execbuffer2_set_context_id(eb2, context) \