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authorJesse Barnes <jbarnes@jbarnes-mobile.amr.corp.intel.com>2007-09-24 14:41:46 -0700
committerJesse Barnes <jbarnes@jbarnes-mobile.amr.corp.intel.com>2007-09-24 14:41:46 -0700
commit5cc3083179b19678456905a9122a3d0f04e6f623 (patch)
tree9b776bdd317aa5af68b7cbf8fabde12e20eccf8a /linux-core/xgi_fence.c
parent2a2d02bbc500140a861380df52ce66abcac39312 (diff)
parent54df1b9ff3b79097fedd8ed7bf54aca30a660cbd (diff)
Merge branch 'master' into modesetting-101 - TTM & typedef removal
Conflicts: linux-core/drmP.h linux-core/drm_bo.c linux-core/drm_drv.c linux-core/drm_objects.h shared-core/drm.h shared-core/i915_dma.c shared-core/i915_drv.h shared-core/i915_irq.c Mostly removing typedefs that snuck into the modesetting code and updating to the latest TTM APIs. As of today, the i915 driver builds, but there are likely to be problems, so debugging and bugfixes will come next.
Diffstat (limited to 'linux-core/xgi_fence.c')
-rw-r--r--linux-core/xgi_fence.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/linux-core/xgi_fence.c b/linux-core/xgi_fence.c
new file mode 100644
index 00000000..adedf300
--- /dev/null
+++ b/linux-core/xgi_fence.c
@@ -0,0 +1,127 @@
+/*
+ * (C) Copyright IBM Corporation 2007
+ * 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
+ * on 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 AUTHORS AND/OR THEIR SUPPLIERS 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.
+ *
+ * Authors:
+ * Ian Romanick <idr@us.ibm.com>
+ */
+
+#include "xgi_drv.h"
+#include "xgi_regs.h"
+#include "xgi_misc.h"
+#include "xgi_cmdlist.h"
+
+static uint32_t xgi_do_flush(struct drm_device * dev, uint32_t class)
+{
+ struct xgi_info * info = dev->dev_private;
+ struct drm_fence_class_manager * fc = &dev->fm.class[class];
+ uint32_t pending_flush_types = 0;
+ uint32_t signaled_flush_types = 0;
+
+
+ if ((info == NULL) || (class != 0))
+ return 0;
+
+ DRM_SPINLOCK(&info->fence_lock);
+
+ pending_flush_types = fc->pending_flush |
+ ((fc->pending_exe_flush) ? DRM_FENCE_TYPE_EXE : 0);
+
+ if (pending_flush_types) {
+ if (pending_flush_types & DRM_FENCE_TYPE_EXE) {
+ const u32 begin_id = DRM_READ32(info->mmio_map,
+ 0x2820)
+ & BEGIN_BEGIN_IDENTIFICATION_MASK;
+
+ if (begin_id != info->complete_sequence) {
+ info->complete_sequence = begin_id;
+ signaled_flush_types |= DRM_FENCE_TYPE_EXE;
+ }
+ }
+
+ if (signaled_flush_types) {
+ drm_fence_handler(dev, 0, info->complete_sequence,
+ signaled_flush_types);
+ }
+ }
+
+ DRM_SPINUNLOCK(&info->fence_lock);
+
+ return fc->pending_flush |
+ ((fc->pending_exe_flush) ? DRM_FENCE_TYPE_EXE : 0);
+}
+
+
+int xgi_fence_emit_sequence(struct drm_device * dev, uint32_t class,
+ uint32_t flags, uint32_t * sequence,
+ uint32_t * native_type)
+{
+ struct xgi_info * info = dev->dev_private;
+
+ if ((info == NULL) || (class != 0))
+ return -EINVAL;
+
+
+ DRM_SPINLOCK(&info->fence_lock);
+ info->next_sequence++;
+ if (info->next_sequence > BEGIN_BEGIN_IDENTIFICATION_MASK) {
+ info->next_sequence = 1;
+ }
+ DRM_SPINUNLOCK(&info->fence_lock);
+
+
+ xgi_emit_irq(info);
+
+ *sequence = (uint32_t) info->next_sequence;
+ *native_type = DRM_FENCE_TYPE_EXE;
+
+ return 0;
+}
+
+
+void xgi_poke_flush(struct drm_device * dev, uint32_t class)
+{
+ struct drm_fence_manager * fm = &dev->fm;
+ unsigned long flags;
+
+
+ write_lock_irqsave(&fm->lock, flags);
+ xgi_do_flush(dev, class);
+ write_unlock_irqrestore(&fm->lock, flags);
+}
+
+
+void xgi_fence_handler(struct drm_device * dev)
+{
+ struct drm_fence_manager * fm = &dev->fm;
+
+
+ write_lock(&fm->lock);
+ xgi_do_flush(dev, 0);
+ write_unlock(&fm->lock);
+}
+
+
+int xgi_fence_has_irq(struct drm_device *dev, uint32_t class, uint32_t flags)
+{
+ return ((class == 0) && (flags == DRM_FENCE_TYPE_EXE)) ? 1 : 0;
+}