nouveau: avoid running out of relocs

- Added flush notify functions for NV30 and NV40.
- Flushing mid frame will call flush notify, which will resubmit all
relocs.
- We don't try to recover from reloc failure yet.

3 files changed, 13 insertions, 1 deletions

diff --git a/src/gallium/drivers/nv40/nv40_context.c b/src/gallium/drivers/nv40/nv40_context.c
index 7f008274a4e..eb9cce4c786 100644
--- a/src/gallium/drivers/nv40/nv40_context.c
+++ b/src/gallium/drivers/nv40/nv40_context.c
@@ -58,6 +58,9 @@ nv40_create(struct pipe_screen *pscreen, unsigned pctx_id)
 	nv40->pipe.is_texture_referenced = nouveau_is_texture_referenced;
 	nv40->pipe.is_buffer_referenced = nouveau_is_buffer_referenced;
 
+	screen->base.channel->user_private = nv40;
+	screen->base.channel->flush_notify = nv40_state_flush_notify;
+
 	nv40_init_query_functions(nv40);
 	nv40_init_surface_functions(nv40);
 	nv40_init_state_functions(nv40);
diff --git a/src/gallium/drivers/nv40/nv40_context.h b/src/gallium/drivers/nv40/nv40_context.h
index a3d594167aa..cf33b64a86d 100644
--- a/src/gallium/drivers/nv40/nv40_context.h
+++ b/src/gallium/drivers/nv40/nv40_context.h
@@ -204,6 +204,7 @@ extern void nv40_fragtex_bind(struct nv40_context *);
 extern boolean nv40_state_validate(struct nv40_context *nv40);
 extern boolean nv40_state_validate_swtnl(struct nv40_context *nv40);
 extern void nv40_state_emit(struct nv40_context *nv40);
+extern void nv40_state_flush_notify(struct nouveau_channel *chan);
 extern struct nv40_state_entry nv40_state_rasterizer;
 extern struct nv40_state_entry nv40_state_scissor;
 extern struct nv40_state_entry nv40_state_stipple;
diff --git a/src/gallium/drivers/nv40/nv40_state_emit.c b/src/gallium/drivers/nv40/nv40_state_emit.c
index 198692965dc..ba0fbcb26a9 100644
--- a/src/gallium/drivers/nv40/nv40_state_emit.c
+++ b/src/gallium/drivers/nv40/nv40_state_emit.c
@@ -57,7 +57,7 @@ nv40_state_emit(struct nv40_context *nv40)
 	struct nouveau_channel *chan = nv40->screen->base.channel;
 	struct nv40_state *state = &nv40->state;
 	struct nv40_screen *screen = nv40->screen;
-	unsigned i, samplers;
+	unsigned i;
 	uint64_t states;
 
 	if (nv40->pctx_id != screen->cur_pctx) {
@@ -87,6 +87,14 @@ nv40_state_emit(struct nv40_context *nv40)
 	}
 
 	state->dirty = 0;
+}
+
+void
+nv40_state_flush_notify(struct nouveau_channel *chan)
+{
+	struct nv40_context *nv40 = chan->user_private;
+	struct nv40_state *state = &nv40->state;
+	unsigned i, samplers;
 
 	so_emit_reloc_markers(chan, state->hw[NV40_STATE_FB]);
 	for (i = 0, samplers = state->fp_samplers; i < 16 && samplers; i++) {