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anv: Assume syncobj support

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Sync object for i915 support has been in upstream Linux since 4.14 which
is 3.5 years old at this point and, as far as we can tell, it also
exists in all the ChromeOS kernels.  Assuming it allows us to drop some
of our more gnarly synchronization fall-back paths.

At the time of merge, ChromeOS was on the following kernels:

 - kernel 3.18: SKL
 - kernel 4.4: BYT, KBL, APL
 - Kernel 4.14: BDW, GLK

All of the pre-4.14 kernels have had syncobj support back-ported.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9777>
This commit is contained in:
Jason Ekstrand 2021-03-23 13:58:12 -05:00 • committed by Marge Bot
parent a62973580b
commit 3b363d5b55
1 changed files with 9 additions and 3 deletions
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12
src/intel/vulkan/anv_device.c
View file

@ -810,12 +810,18 @@ anv_physical_device_try_create(struct anv_instance *instance,
goto fail_alloc; goto fail_alloc;
} }
if (!anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_FENCE_ARRAY)) {
result = vk_errorfi(device->instance, NULL,
VK_ERROR_INITIALIZATION_FAILED,
"kernel missing syncobj support");
goto fail_base;
}
device->has_exec_async = anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_ASYNC); device->has_exec_async = anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_ASYNC);
device->has_exec_capture = anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_CAPTURE); device->has_exec_capture = anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_CAPTURE);
device->has_exec_fence = anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_FENCE); device->has_exec_fence = anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_FENCE);
device->has_syncobj = anv_gem_get_param(fd, I915_PARAM_HAS_EXEC_FENCE_ARRAY); device->has_syncobj = true;
device->has_syncobj_wait = device->has_syncobj && device->has_syncobj_wait = anv_gem_supports_syncobj_wait(fd);
anv_gem_supports_syncobj_wait(fd);
device->has_syncobj_wait_available = device->has_syncobj_wait_available =
anv_gem_get_drm_cap(fd, DRM_CAP_SYNCOBJ_TIMELINE) != 0; anv_gem_get_drm_cap(fd, DRM_CAP_SYNCOBJ_TIMELINE) != 0;