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authorThomas Hellstrom <thomas-at-tungstengraphics-dot-com>2008-01-30 22:06:02 +0100
committerThomas Hellstrom <thomas-at-tungstengraphics-dot-com>2008-01-30 22:06:02 +0100
commitf1edb7ad91d8b92057ffa02eb162e3740d05a147 (patch)
tree9d852b6ceab256a96f9589a4b69d92f18d660abf /linux-core/xgi_fence.c
parent9a7e45858d8faa7afbe31b130d2de1be781085da (diff)
Simplify the fencing code and differentiate between flushes and
waiting types. Add a "command_stream_barrier" method to the bo driver.
Diffstat (limited to 'linux-core/xgi_fence.c')
-rw-r--r--linux-core/xgi_fence.c55
1 files changed, 25 insertions, 30 deletions
diff --git a/linux-core/xgi_fence.c b/linux-core/xgi_fence.c
index 9a75581a..63ed29ee 100644
--- a/linux-core/xgi_fence.c
+++ b/linux-core/xgi_fence.c
@@ -30,44 +30,37 @@
#include "xgi_misc.h"
#include "xgi_cmdlist.h"
-static uint32_t xgi_do_flush(struct drm_device * dev, uint32_t class)
+static void xgi_fence_poll(struct drm_device * dev, uint32_t class,
+ uint32_t waiting_types)
{
struct xgi_info * info = dev->dev_private;
- struct drm_fence_class_manager * fc = &dev->fm.fence_class[class];
- uint32_t pending_flush_types = 0;
- uint32_t signaled_flush_types = 0;
+ uint32_t signaled_types = 0;
if ((info == NULL) || (class != 0))
- return 0;
+ return;
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) {
+ if (waiting_types) {
+ if (waiting_types & DRM_FENCE_TYPE_EXE) {
const u32 begin_id = le32_to_cpu(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;
+ signaled_types |= DRM_FENCE_TYPE_EXE;
}
}
- if (signaled_flush_types) {
+ if (signaled_types) {
drm_fence_handler(dev, 0, info->complete_sequence,
- signaled_flush_types, 0);
+ signaled_types, 0);
}
}
DRM_SPINUNLOCK(&info->fence_lock);
-
- return fc->pending_flush |
- ((fc->pending_exe_flush) ? DRM_FENCE_TYPE_EXE : 0);
}
@@ -98,25 +91,13 @@ int xgi_fence_emit_sequence(struct drm_device * dev, uint32_t class,
}
-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;
-
+ struct drm_fence_class_manager *fc = &fm->fence_class[0];
write_lock(&fm->lock);
- xgi_do_flush(dev, 0);
+ xgi_fence_poll(dev, 0, fc->waiting_types);
write_unlock(&fm->lock);
}
@@ -125,3 +106,17 @@ 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;
}
+
+struct drm_fence_driver xgi_fence_driver = {
+ .num_classes = 1,
+ .wrap_diff = BEGIN_BEGIN_IDENTIFICATION_MASK,
+ .flush_diff = BEGIN_BEGIN_IDENTIFICATION_MASK - 1,
+ .sequence_mask = BEGIN_BEGIN_IDENTIFICATION_MASK,
+ .has_irq = xgi_fence_has_irq,
+ .emit = xgi_fence_emit_sequence,
+ .flush = NULL,
+ .poll = xgi_fence_poll,
+ .needed_flush = NULL,
+ .wait = NULL
+};
+