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authorBen Skeggs <darktama@iinet.net.au>2006-12-26 20:59:49 +1100
committerBen Skeggs <darktama@iinet.net.au>2006-12-26 21:36:15 +1100
commitc0a63d8e5e33b7fe3057e32f04c22969ac2adc1d (patch)
treea047c596952c18e1675a63dac0243c8afc8bf2c9 /src/mesa/drivers/dri/nouveau/nouveau_sync.c
parentb8769f318ff9c2e4a74fbb1d4b058eb521e36dda (diff)
nouveau: Add notifier support functions
Diffstat (limited to 'src/mesa/drivers/dri/nouveau/nouveau_sync.c')
-rw-r--r--src/mesa/drivers/dri/nouveau/nouveau_sync.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_sync.c b/src/mesa/drivers/dri/nouveau/nouveau_sync.c
new file mode 100644
index 0000000000..698f778c4b
--- /dev/null
+++ b/src/mesa/drivers/dri/nouveau/nouveau_sync.c
@@ -0,0 +1,115 @@
+#include "vblank.h" /* for DO_USLEEP */
+
+#include "nouveau_context.h"
+#include "nouveau_buffers.h"
+#include "nouveau_object.h"
+#include "nouveau_fifo.h"
+#include "nouveau_reg.h"
+#include "nouveau_msg.h"
+#include "nouveau_sync.h"
+
+nouveau_notifier *
+nouveau_notifier_new(GLcontext *ctx, GLuint handle)
+{
+ nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+ nouveau_notifier *notifier;
+
+ notifier = CALLOC_STRUCT(nouveau_notifier_t);
+ if (!notifier)
+ return NULL;
+
+ notifier->mem = nouveau_mem_alloc(ctx, NOUVEAU_MEM_FB, 32, 0);
+ if (!notifier->mem) {
+ FREE(notifier);
+ return NULL;
+ }
+
+ if (!nouveauCreateDmaObject(nmesa, handle, notifier->mem->offset,
+ notifier->mem->size,
+ 0 /* NV_DMA_TARGET_FB */,
+ 0 /* NV_DMA_ACCESS_RW */)) {
+ nouveau_mem_free(ctx, notifier->mem);
+ FREE(notifier);
+ return NULL;
+ }
+
+ notifier->handle = handle;
+ return notifier;
+}
+
+void
+nouveau_notifier_destroy(GLcontext *ctx, nouveau_notifier *notifier)
+{
+ /*XXX: free DMA object.. */
+ nouveau_mem_free(ctx, notifier->mem);
+ FREE(notifier);
+}
+
+void
+nouveau_notifier_reset(nouveau_notifier *notifier)
+{
+ volatile GLuint *n = notifier->mem->map;
+
+ n[NV_NOTIFY_TIME_0 /4] = 0x00000000;
+ n[NV_NOTIFY_TIME_1 /4] = 0x00000000;
+ n[NV_NOTIFY_RETURN_VALUE/4] = 0x00000000;
+ n[NV_NOTIFY_STATE /4] = (NV_NOTIFY_STATE_STATUS_IN_PROCESS <<
+ NV_NOTIFY_STATE_STATUS_SHIFT);
+}
+
+GLboolean
+nouveau_notifier_wait_status(nouveau_notifier *notifier, GLuint status,
+ GLuint timeout)
+{
+ volatile GLuint *n = notifier->mem->map;
+ unsigned int time = 0;
+
+ while (time <= timeout) {
+ if (n[NV_NOTIFY_STATE] & NV_NOTIFY_STATE_ERROR_CODE_MASK) {
+ MESSAGE("Notifier returned error: 0x%04x\n",
+ n[NV_NOTIFY_STATE] &
+ NV_NOTIFY_STATE_ERROR_CODE_MASK);
+ return GL_FALSE;
+ }
+
+ if (((n[NV_NOTIFY_STATE] & NV_NOTIFY_STATE_STATUS_MASK) >>
+ NV_NOTIFY_STATE_STATUS_SHIFT) == status)
+ return GL_TRUE;
+
+ if (timeout) {
+ DO_USLEEP(1);
+ time++;
+ }
+ }
+
+ MESSAGE("Notifier timed out\n");
+ return GL_FALSE;
+}
+
+void
+nouveau_notifier_wait_nop(GLcontext *ctx, nouveau_notifier *notifier,
+ GLuint subc)
+{
+ nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+ GLboolean ret;
+
+ nouveau_notifier_reset(notifier);
+
+ BEGIN_RING_SIZE(subc, NV_NOTIFY, 1);
+ OUT_RING (NV_NOTIFY_STYLE_WRITE_ONLY);
+ BEGIN_RING_SIZE(subc, NV_NOP, 1);
+ OUT_RING (0);
+
+ ret = nouveau_notifier_wait_status(notifier,
+ NV_NOTIFY_STATE_STATUS_COMPLETED,
+ 0 /* no timeout */);
+ if (ret) MESSAGE("wait on notifier failed\n");
+}
+
+void nouveauSyncInitFuncs(GLcontext *ctx)
+{
+ nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
+
+ nmesa->syncNotifier = nouveau_notifier_new(ctx, NvSyncNotify);
+}
+