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authorJon Nettleton <jon.nettleton@gmail.com>2007-06-07 13:15:10 +0000
committerJon Nettleton <jon.nettleton@gmail.com>2007-06-07 13:15:10 +0000
commit83c4eb79d5d5870a3dde9431b393cb08c175fd0d (patch)
tree68538648978ea85c7131191d7d97f7802b509b98 /src/via_drmclient.h
parent0552096a2831446d7ace66bf88d14bdd2742c65d (diff)
mv unichrome to src
Diffstat (limited to 'src/via_drmclient.h')
-rw-r--r--src/via_drmclient.h98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/via_drmclient.h b/src/via_drmclient.h
new file mode 100644
index 000000000000..8d54693ecd4a
--- /dev/null
+++ b/src/via_drmclient.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2005 The Unichrome Project, All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) OR COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _VIA_DRMCLIENT_H
+#define _VIA_DRMCLIENT_H
+
+#include "drm.h"
+#include "xf86drm.h"
+#include "stdint.h"
+
+#ifdef X_NEED_DRMLOCK
+#define drm_hw_lock_t drmLock
+#endif
+
+#define UNICHROME_LOCK(fd, lockNo, saPriv, context, lastcontext, ret) \
+ do { \
+ volatile drm_hw_lock_t *lockPtr = XVMCLOCKPTR((saPriv), (lockNo)); \
+ unsigned lockVal; \
+ DRM_CAS_RESULT(__ret); \
+ \
+ ret = 0; \
+ lockVal = lockPtr->lock & ~(DRM_LOCK_HELD | DRM_LOCK_CONT); \
+ DRM_CAS(lockPtr, lockVal, (context) | DRM_LOCK_HELD, __ret); \
+ if (__ret) { \
+ drm_via_futex_t fx; \
+ \
+ lockVal = lockPtr->lock; \
+ if (! (lockVal & DRM_LOCK_HELD)) continue; \
+ if ((lockVal & ~(DRM_LOCK_HELD | DRM_LOCK_CONT) ) \
+ == (context)) { \
+ lastcontext = lockVal & ~(DRM_LOCK_HELD | DRM_LOCK_CONT); \
+ break; \
+ } \
+ fx.val = lockVal | DRM_LOCK_CONT; \
+ DRM_CAS( lockPtr, lockVal, fx.val, __ret); \
+ lockVal = lockPtr->lock; \
+ if (__ret) continue; \
+ fx.func = VIA_FUTEX_WAIT; \
+ fx.lock = (lockNo); \
+ fx.ms = 10; \
+ ret = drmCommandWrite((fd), DRM_VIA_DEC_FUTEX, \
+ &fx,sizeof(fx)); \
+ lastcontext = lockVal; \
+ if (ret) break; \
+ continue; \
+ } else { \
+ lastcontext = lockVal; \
+ break; \
+ } \
+ } while (1) \
+
+#define UNICHROME_UNLOCK(fd, lockNo, saPriv, context) \
+ do { \
+ volatile drm_hw_lock_t *lockPtr = XVMCLOCKPTR((saPriv), (lockNo)); \
+ \
+ if ((lockPtr->lock & ~DRM_LOCK_CONT) == \
+ ((context) | DRM_LOCK_HELD)) { \
+ DRM_CAS_RESULT(__ret); \
+ DRM_CAS(lockPtr,(context) | DRM_LOCK_HELD, context, __ret); \
+ if (__ret) { \
+ drm_via_futex_t fx; \
+ fx.func = VIA_FUTEX_WAKE; \
+ fx.lock = lockNo; \
+ DRM_CAS(lockPtr, (context) | DRM_LOCK_HELD | \
+ DRM_LOCK_CONT, \
+ context, __ret); \
+ drmCommandWrite((fd), DRM_VIA_DEC_FUTEX, &fx, \
+ sizeof(fx)); \
+ } \
+ } \
+ } while (0) \
+
+#define UNICHROME_LOCK_DECODER1 0
+#define UNICHROME_LOCK_DECODER2 1
+#define UNICHROME_LOCK_HQV 4
+#define __user
+
+#endif