[Mesa-dev] [RFC 03/12] egl: add EGL_ANDROID_native_fence_sync
Rob Clark
robdclark at gmail.com
Sat Oct 29 17:15:44 UTC 2016
On Fri, Oct 28, 2016 at 7:44 PM, Rafael Antognolli
<rafael.antognolli at intel.com> wrote:
> Hi Chad and Rob,
>
> I took the liberty to run the piglit tests that I submitted against this
> series, and it pointed out to a couple errors. Please disregard this if
> you already have a newer version of these patches laying around with
> those things fixed.
>
> On Mon, Oct 10, 2016 at 10:43:50AM -0700, Chad Versace wrote:
>> From: Rob Clark <robclark at freedesktop.org>
>>
>> [chadv]: Resolve rebase conflicts.
>>
>> Signed-off-by: Rob Clark <robclark at freedesktop.org>
>> ---
>> src/egl/drivers/dri2/egl_dri2.c | 49 +++++++++++++++++++++++++++++++++++++++++
>> src/egl/main/eglapi.c | 36 +++++++++++++++++++++++++++---
>> src/egl/main/eglapi.h | 2 ++
>> src/egl/main/egldisplay.h | 1 +
>> src/egl/main/eglfallbacks.c | 1 +
>> src/egl/main/eglsync.c | 37 +++++++++++++++++++------------
>> src/egl/main/eglsync.h | 1 +
>> 7 files changed, 110 insertions(+), 17 deletions(-)
>>
>> diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
>> index cd0a2e9..0c15c85 100644
>> --- a/src/egl/drivers/dri2/egl_dri2.c
>> +++ b/src/egl/drivers/dri2/egl_dri2.c
>> @@ -633,6 +633,12 @@ dri2_setup_screen(_EGLDisplay *disp)
>> disp->Extensions.KHR_wait_sync = EGL_TRUE;
>> if (dri2_dpy->fence->get_fence_from_cl_event)
>> disp->Extensions.KHR_cl_event2 = EGL_TRUE;
>> + if (dri2_dpy->fence->base.version >= 2) {
>> + unsigned capabilities =
>> + dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
>> + disp->Extensions.ANDROID_native_fence_sync =
>> + (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
>> + }
>> }
>>
>> disp->Extensions.KHR_reusable_sync = EGL_TRUE;
>> @@ -2589,6 +2595,19 @@ dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
>> /* initial status of reusable sync must be "unsignaled" */
>> dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
>> break;
>> +
>> + case EGL_SYNC_NATIVE_FENCE_ANDROID:
>> + if (dri2_dpy->fence->create_fence_fd) {
>> + dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
>> + dri2_ctx->dri_context,
>> + dri2_sync->base.SyncFd);
>> + }
>> + if (!dri2_sync->fence) {
>> + _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
>> + free(dri2_sync);
>> + return NULL;
>> + }
>> + break;
>> }
>>
>> p_atomic_set(&dri2_sync->refcount, 1);
>> @@ -2618,12 +2637,41 @@ dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
>> ret = EGL_FALSE;
>> }
>> }
>> +
>> + if (sync->SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
>> + close(sync->SyncFd);
>> +
>> dri2_egl_unref_sync(dri2_dpy, dri2_sync);
>>
>> return ret;
>> }
>>
>> static EGLint
>> +dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
>> +{
>> + struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
>> + struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
>> +
>> + assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
>> +
>> + if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
>> + /* try to retrieve the actual native fence fd.. if rendering is
>> + * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
>> + */
>> + sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
>> + dri2_sync->fence);
>> + }
>> +
>> + if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
>> + /* if native fence fd still not created, return an error: */
>> + _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
>> + return EGL_NO_NATIVE_FENCE_FD_ANDROID;
>> + }
>> +
>> + return dup(sync->SyncFd);
>> +}
>> +
>> +static EGLint
>> dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
>> EGLint flags, EGLTime timeout)
>
> I believe dri2_client_wait_sync is missing a:
> case EGL_SYNC_NATIVE_FENCE_ANDROID:
>
> which does the same as the EGL_SYNC_FENCE_KHR case.
>
> See
> https://lists.freedesktop.org/archives/piglit/2016-October/021263.html
>
>> {
>> @@ -2900,6 +2948,7 @@ _eglBuiltInDriverDRI2(const char *args)
>> dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
>> dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
>> dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
>> + dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
>> dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
>> dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
>>
>> diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
>> index 18071d7..3c0b017 100644
>> --- a/src/egl/main/eglapi.c
>> +++ b/src/egl/main/eglapi.c
>> @@ -469,6 +469,7 @@ _eglCreateExtensionsString(_EGLDisplay *dpy)
>> /* Please keep these sorted alphabetically. */
>> _EGL_CHECK_EXTENSION(ANDROID_framebuffer_target);
>> _EGL_CHECK_EXTENSION(ANDROID_image_native_buffer);
>> + _EGL_CHECK_EXTENSION(ANDROID_native_fence_sync);
>> _EGL_CHECK_EXTENSION(ANDROID_recordable);
>>
>> _EGL_CHECK_EXTENSION(CHROMIUM_sync_control);
>> @@ -1562,6 +1563,10 @@ _eglCreateSync(_EGLDisplay *disp, EGLenum type, const EGLAttrib *attrib_list,
>> if (!disp->Extensions.KHR_cl_event2)
>> RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
>> break;
>> + case EGL_SYNC_NATIVE_FENCE_ANDROID:
>> + if (!disp->Extensions.ANDROID_native_fence_sync)
>> + RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
>> + break;
>> default:
>> RETURN_EGL_ERROR(disp, invalid_type_error, EGL_NO_SYNC_KHR);
>> }
>> @@ -1634,7 +1639,8 @@ eglDestroySync(EGLDisplay dpy, EGLSync sync)
>>
>> _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
>> assert(disp->Extensions.KHR_reusable_sync ||
>> - disp->Extensions.KHR_fence_sync);
>> + disp->Extensions.KHR_fence_sync ||
>> + disp->Extensions.ANDROID_native_fence_sync);
>>
>> _eglUnlinkSync(s);
>> ret = drv->API.DestroySyncKHR(drv, disp, s);
>> @@ -1655,7 +1661,8 @@ eglClientWaitSync(EGLDisplay dpy, EGLSync sync, EGLint flags, EGLTime timeout)
>>
>> _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
>> assert(disp->Extensions.KHR_reusable_sync ||
>> - disp->Extensions.KHR_fence_sync);
>> + disp->Extensions.KHR_fence_sync ||
>> + disp->Extensions.ANDROID_native_fence_sync);
>>
>> if (s->SyncStatus == EGL_SIGNALED_KHR)
>> RETURN_EGL_EVAL(disp, EGL_CONDITION_SATISFIED_KHR);
>> @@ -1754,7 +1761,8 @@ _eglGetSyncAttribCommon(_EGLDisplay *disp, _EGLSync *s, EGLint attribute, EGLAtt
>>
>> _EGL_CHECK_SYNC(disp, s, EGL_FALSE, drv);
>> assert(disp->Extensions.KHR_reusable_sync ||
>> - disp->Extensions.KHR_fence_sync);
>> + disp->Extensions.KHR_fence_sync ||
>> + disp->Extensions.ANDROID_native_fence_sync);
>> ret = drv->API.GetSyncAttrib(drv, disp, s, attribute, value);
>>
>> RETURN_EGL_EVAL(disp, ret);
>> @@ -1797,6 +1805,27 @@ eglGetSyncAttribKHR(EGLDisplay dpy, EGLSync sync, EGLint attribute, EGLint *valu
>> return result;
>> }
>>
>> +static EGLint EGLAPIENTRY
>> +eglDupNativeFenceFDANDROID(EGLDisplay dpy, EGLSync sync)
>> +{
>> + _EGLDisplay *disp = _eglLockDisplay(dpy);
>> + _EGLSync *s = _eglLookupSync(sync, disp);
>> + _EGLDriver *drv;
>> + EGLBoolean ret;
>> +
>> + /* the spec doesn't seem to specify what happens if the fence
>> + * type is not EGL_SYNC_NATIVE_FENCE_ANDROID, but this seems
>> + * sensible:
>> + */
>> + if (s->Type != EGL_SYNC_NATIVE_FENCE_ANDROID)
>
> If sync is invalid, "s" will be null and will segfault here.
>
> See
> https://lists.freedesktop.org/archives/piglit/2016-October/021257.html
>
>> + RETURN_EGL_ERROR(disp, EGL_BAD_PARAMETER, EGL_NO_NATIVE_FENCE_FD_ANDROID);
>> +
>> + _EGL_CHECK_SYNC(disp, s, EGL_NO_NATIVE_FENCE_FD_ANDROID, drv);
>> + assert(disp->Extensions.ANDROID_native_fence_sync);
>> + ret = drv->API.DupNativeFenceFDANDROID(drv, disp, s);
>> +
>> + RETURN_EGL_EVAL(disp, ret);
>> +}
>>
>> static EGLBoolean EGLAPIENTRY
>> eglSwapBuffersRegionNOK(EGLDisplay dpy, EGLSurface surface,
>> @@ -2271,6 +2300,7 @@ eglGetProcAddress(const char *procname)
>> { "eglLabelObjectKHR", (_EGLProc) eglLabelObjectKHR },
>> { "eglDebugMessageControlKHR", (_EGLProc) eglDebugMessageControlKHR },
>> { "eglQueryDebugKHR", (_EGLProc) eglQueryDebugKHR },
>> + { "eglDupNativeFenceFDANDROID", (_EGLProc) eglDupNativeFenceFDANDROID },
>> { NULL, NULL }
>> };
>> EGLint i;
>> diff --git a/src/egl/main/eglapi.h b/src/egl/main/eglapi.h
>> index b9bcc8e..2dc89fc 100644
>> --- a/src/egl/main/eglapi.h
>> +++ b/src/egl/main/eglapi.h
>> @@ -146,6 +146,8 @@ struct _egl_api
>> EGLBoolean (*GetSyncAttrib)(_EGLDriver *drv, _EGLDisplay *dpy,
>> _EGLSync *sync, EGLint attribute,
>> EGLAttrib *value);
>> + EGLint (*DupNativeFenceFDANDROID)(_EGLDriver *drv, _EGLDisplay *dpy,
>> + _EGLSync *sync);
>>
>> EGLBoolean (*SwapBuffersRegionNOK)(_EGLDriver *drv, _EGLDisplay *disp,
>> _EGLSurface *surf, EGLint numRects,
>> diff --git a/src/egl/main/egldisplay.h b/src/egl/main/egldisplay.h
>> index 22fb5c8..dcec764 100644
>> --- a/src/egl/main/egldisplay.h
>> +++ b/src/egl/main/egldisplay.h
>> @@ -94,6 +94,7 @@ struct _egl_extensions
>> /* Please keep these sorted alphabetically. */
>> EGLBoolean ANDROID_framebuffer_target;
>> EGLBoolean ANDROID_image_native_buffer;
>> + EGLBoolean ANDROID_native_fence_sync;
>> EGLBoolean ANDROID_recordable;
>>
>> EGLBoolean CHROMIUM_sync_control;
>> diff --git a/src/egl/main/eglfallbacks.c b/src/egl/main/eglfallbacks.c
>> index d0fce8c..017d337 100644
>> --- a/src/egl/main/eglfallbacks.c
>> +++ b/src/egl/main/eglfallbacks.c
>> @@ -92,6 +92,7 @@ _eglInitDriverFallbacks(_EGLDriver *drv)
>> drv->API.WaitSyncKHR = NULL;
>> drv->API.SignalSyncKHR = NULL;
>> drv->API.GetSyncAttrib = _eglGetSyncAttrib;
>> + drv->API.DupNativeFenceFDANDROID = NULL;
>>
>> drv->API.CreateDRMImageMESA = NULL;
>> drv->API.ExportDRMImageMESA = NULL;
>> diff --git a/src/egl/main/eglsync.c b/src/egl/main/eglsync.c
>> index eb9950d..ccfa474 100644
>> --- a/src/egl/main/eglsync.c
>> +++ b/src/egl/main/eglsync.c
>> @@ -49,24 +49,23 @@ _eglParseSyncAttribList(_EGLSync *sync, const EGLAttrib *attrib_list)
>> for (i = 0; attrib_list[i] != EGL_NONE; i++) {
>> EGLAttrib attr = attrib_list[i++];
>> EGLAttrib val = attrib_list[i];
>> - EGLint err = EGL_SUCCESS;
>>
>> switch (attr) {
>> case EGL_CL_EVENT_HANDLE_KHR:
>> - if (sync->Type == EGL_SYNC_CL_EVENT_KHR) {
>> - sync->CLEvent = val;
>> - break;
>> - }
>> - /* fall through */
>> - default:
>> - (void) val;
>> - err = EGL_BAD_ATTRIBUTE;
>> + if (sync->Type != EGL_SYNC_CL_EVENT_KHR)
>> + goto bad_attrib;
>> + sync->CLEvent = val;
>> break;
>> - }
>> -
>> - if (err != EGL_SUCCESS) {
>> + case EGL_SYNC_NATIVE_FENCE_FD_ANDROID:
>> + if (sync->Type != EGL_SYNC_NATIVE_FENCE_ANDROID)
>> + goto bad_attrib;
>> + /* we take ownership of the native fd, so no dup(): */
>> + sync->SyncFd = val;
>> + break;
>> + bad_attrib:
>> + default:
>> _eglLog(_EGL_DEBUG, "bad sync attribute 0x%" PRIxPTR, attr);
>> - return err;
>> + return EGL_BAD_ATTRIBUTE;
>> }
>> }
>>
>> @@ -83,6 +82,7 @@ _eglInitSync(_EGLSync *sync, _EGLDisplay *dpy, EGLenum type,
>> _eglInitResource(&sync->Resource, sizeof(*sync), dpy);
>> sync->Type = type;
>> sync->SyncStatus = EGL_UNSIGNALED_KHR;
>> + sync->SyncFd = EGL_NO_NATIVE_FENCE_FD_ANDROID;
>>
>> err = _eglParseSyncAttribList(sync, attrib_list);
>> if (err != EGL_SUCCESS)
>> @@ -92,6 +92,13 @@ _eglInitSync(_EGLSync *sync, _EGLDisplay *dpy, EGLenum type,
>> case EGL_SYNC_CL_EVENT_KHR:
>> sync->SyncCondition = EGL_SYNC_CL_EVENT_COMPLETE_KHR;
>> break;
>> + case EGL_SYNC_NATIVE_FENCE_ANDROID:
>> + sync->SyncCondition = EGL_SYNC_NATIVE_FENCE_SIGNALED_ANDROID;
>> + if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID)
>> + sync->SyncCondition = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR;
>> + else
>> + sync->SyncCondition = EGL_SYNC_NATIVE_FENCE_SIGNALED_ANDROID;
>> + break;
>> default:
>> sync->SyncCondition = EGL_SYNC_PRIOR_COMMANDS_COMPLETE_KHR;
>> }
>> @@ -123,10 +130,12 @@ _eglGetSyncAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
>> break;
>
> I think this function is missing a (sync->Type ==
> EGL_SYNC_NATIVE_FENCE_ANDROID) inside the EGL_SYNC_STATUS_KHR case.
> Without that, it will only return whatever is inside sync->SyncStatus,
> which is not always up to date to the status of the sync fd.
>
> See
> https://lists.freedesktop.org/archives/piglit/2016-October/021252.html
>
>> case EGL_SYNC_CONDITION_KHR:
>> if (sync->Type != EGL_SYNC_FENCE_KHR &&
>> - sync->Type != EGL_SYNC_CL_EVENT_KHR)
>> + sync->Type != EGL_SYNC_CL_EVENT_KHR &&
>> + sync->Type != EGL_SYNC_NATIVE_FENCE_ANDROID)
>> return _eglError(EGL_BAD_ATTRIBUTE, "eglGetSyncAttribKHR");
>> *value = sync->SyncCondition;
>> break;
>> +
>> default:
>> return _eglError(EGL_BAD_ATTRIBUTE, "eglGetSyncAttribKHR");
>> break;
>> diff --git a/src/egl/main/eglsync.h b/src/egl/main/eglsync.h
>> index 83b6f72..5ac76f3 100644
>> --- a/src/egl/main/eglsync.h
>> +++ b/src/egl/main/eglsync.h
>> @@ -48,6 +48,7 @@ struct _egl_sync
>> EGLenum SyncStatus;
>> EGLenum SyncCondition;
>> EGLAttrib CLEvent;
>> + EGLint SyncFd;
>> };
>>
>>
>> --
>> 2.10.0
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
> I hope that helps.
Hey, thanks for this. I don't suppose you have a branch somewhere w/
the piglit tests?
I've rebased and pulled in Chad's squash patches (and also a squash
patch based on the issues you pointed out), but not yet the i965
patches:
https://github.com/freedreno/mesa/commits/wip-fence
BR,
-R
> Regards,
> Rafael
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