nv30: import new driver for GeForce FX/6/7 chipsets, and Quadro variants

The primary motivation for this rewrite was to have a maintainable driver
going forward, as nvfx was quite horrible in a lot of ways.

The driver is heavily based on the design of the nv50/nvc0 3d drivers we
already have, and uses the same common buffer/fence code.  It also passes
a HEAP more piglit tests than nvfx did, supports a couple more features,
and a few more to come still probably.

The CPU footprint of this driver is far far less than nvfx, and translates
into far greater framerates in a lot of applications (unless you're using
a CPU that's way way newer than the GPUs of these generations....)

Basically, we once again have a maintained driver for these chipsets \o/

Feel free to report bugs now!

1 files changed, 174 insertions, 0 deletions

diff --git a/src/gallium/drivers/nv30/nv30_context.c b/src/gallium/drivers/nv30/nv30_context.c
new file mode 100644
index 00000000000..258ea7278f4
--- /dev/null
+++ b/src/gallium/drivers/nv30/nv30_context.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * 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, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS 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: Ben Skeggs
+ *
+ */
+
+#include "draw/draw_context.h"
+
+#include "nouveau/nv_object.xml.h"
+#include "nv30-40_3d.xml.h"
+
+#include "nouveau/nouveau_fence.h"
+#include "nv30_context.h"
+#include "nv30_transfer.h"
+#include "nv30_state.h"
+
+static void
+nv30_context_kick_notify(struct nouveau_pushbuf *push)
+{
+   struct nouveau_screen *screen;
+   struct nv30_context *nv30;
+
+   if (!push->user_priv)
+      return;
+   nv30 = container_of(push->user_priv, nv30, bufctx);
+   screen = &nv30->screen->base;
+
+   nouveau_fence_next(screen);
+   nouveau_fence_update(screen, TRUE);
+
+   if (push->bufctx) {
+      struct nouveau_bufref *bref;
+      LIST_FOR_EACH_ENTRY(bref, &push->bufctx->current, thead) {
+         struct nv04_resource *res = bref->priv;
+         if (res && res->mm) {
+            nouveau_fence_ref(screen->fence.current, &res->fence);
+
+            if (bref->flags & NOUVEAU_BO_RD)
+               res->status |= NOUVEAU_BUFFER_STATUS_GPU_READING;
+
+            if (bref->flags & NOUVEAU_BO_WR) {
+               nouveau_fence_ref(screen->fence.current, &res->fence_wr);
+               res->status |= NOUVEAU_BUFFER_STATUS_GPU_WRITING;
+            }
+         }
+      }
+   }
+}
+
+static void
+nv30_context_flush(struct pipe_context *pipe, struct pipe_fence_handle **fence)
+{
+   struct nv30_context *nv30 = nv30_context(pipe);
+   struct nouveau_pushbuf *push = nv30->base.pushbuf;
+
+   if (fence)
+      nouveau_fence_ref(nv30->screen->base.fence.current,
+                        (struct nouveau_fence **)fence);
+
+   PUSH_KICK(push);
+}
+
+static void
+nv30_context_destroy(struct pipe_context *pipe)
+{
+   struct nv30_context *nv30 = nv30_context(pipe);
+
+   if (nv30->draw)
+      draw_destroy(nv30->draw);
+
+   nouveau_bufctx_del(&nv30->bufctx);
+
+   if (nv30->screen->cur_ctx == nv30)
+      nv30->screen->cur_ctx = NULL;
+
+   FREE(nv30);
+}
+
+#define FAIL_CONTEXT_INIT(str, err)                   \
+   do {                                               \
+      NOUVEAU_ERR(str, err);                          \
+      nv30_context_destroy(pipe);                     \
+      return NULL;                                    \
+   } while(0)
+
+struct pipe_context *
+nv30_context_create(struct pipe_screen *pscreen, void *priv)
+{
+   struct nv30_screen *screen = nv30_screen(pscreen);
+   struct nv30_context *nv30 = CALLOC_STRUCT(nv30_context);
+   struct nouveau_pushbuf *push;
+   struct pipe_context *pipe;
+   int ret;
+
+   if (!nv30)
+      return NULL;
+
+   nv30->screen = screen;
+   nv30->base.screen = &screen->base;
+   nv30->base.copy_data = nv30_transfer_copy_data;
+
+   pipe = &nv30->base.pipe;
+   pipe->screen = pscreen;
+   pipe->priv = priv;
+   pipe->destroy = nv30_context_destroy;
+   pipe->flush = nv30_context_flush;
+
+   /*XXX: *cough* per-context client */
+   nv30->base.client = screen->base.client;
+
+   /*XXX: *cough* per-context pushbufs */
+   push = screen->base.pushbuf;
+   nv30->base.pushbuf = push;
+   nv30->base.pushbuf->user_priv = push->user_priv; /* hack at validate time */
+   nv30->base.pushbuf->rsvd_kick = 16; /* hack in screen before first space */
+   nv30->base.pushbuf->kick_notify = nv30_context_kick_notify;
+
+   ret = nouveau_bufctx_new(nv30->base.client, 64, &nv30->bufctx);
+   if (ret) {
+      nv30_context_destroy(pipe);
+      return NULL;
+   }
+
+   /*XXX: make configurable with performance vs quality, these defaults
+    *     match the binary driver's defaults
+    */
+   if (screen->eng3d->oclass < NV40_3D_CLASS)
+      nv30->config.filter = 0x00000004;
+   else
+      nv30->config.filter = 0x00002dc4;
+
+   nv30->config.aniso = NV40_3D_TEX_WRAP_ANISO_MIP_FILTER_OPTIMIZATION_OFF;
+
+   if (debug_get_bool_option("NV30_SWTNL", FALSE))
+      nv30->draw_flags |= NV30_NEW_SWTNL;
+
+   /*XXX: nvfx... */
+   nv30->is_nv4x = (screen->eng3d->oclass >= NV40_3D_CLASS) ? ~0 : 0;
+   nv30->use_nv4x = (screen->eng3d->oclass >= NV40_3D_CLASS) ? ~0 : 0;
+   nv30->render_mode = HW;
+
+   nv30_vbo_init(pipe);
+   nv30_query_init(pipe);
+   nv30_state_init(pipe);
+   nv30_resource_init(pipe);
+   nv30_clear_init(pipe);
+   nv30_fragprog_init(pipe);
+   nv30_vertprog_init(pipe);
+   nv30_texture_init(pipe);
+   nv30_fragtex_init(pipe);
+   nv40_verttex_init(pipe);
+   nv30_draw_init(pipe);
+
+   return pipe;
+}