etnaviv: gallium driver for Vivante GPUs

This driver supports a wide range of Vivante IP cores like GC880,
GC1000, GC2000 and GC3000.

Changes from V1 -> V2:
 - added missing files to actually integrate the driver into build system.
 - adapted driver to new renderonly API

Signed-off-by: Christian Gmeiner <[email protected]>
Signed-off-by: Lucas Stach <[email protected]>
Signed-off-by: Philipp Zabel <[email protected]>
Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Russell King <[email protected]>
Signed-off-by: Wladimir J. van der Laan <[email protected]>
Acked-by: Emil Velikov <[email protected]>

1 files changed, 123 insertions, 0 deletions

diff --git a/src/gallium/drivers/etnaviv/etnaviv_emit.h b/src/gallium/drivers/etnaviv/etnaviv_emit.h
new file mode 100644
index 00000000000..6a3c77286d3
--- /dev/null
+++ b/src/gallium/drivers/etnaviv/etnaviv_emit.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2012-2015 Etnaviv Project
+ *
+ * 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, 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 OR COPYRIGHT HOLDERS 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:
+ *    Wladimir J. van der Laan <[email protected]>
+ */
+
+#ifndef H_ETNA_EMIT
+#define H_ETNA_EMIT
+
+#include "etnaviv_screen.h"
+#include "etnaviv_util.h"
+#include "hw/cmdstream.xml.h"
+
+struct etna_context;
+struct compiled_rs_state;
+
+static inline void
+etna_emit_load_state(struct etna_cmd_stream *stream, const uint16_t offset,
+                     const uint16_t count, const int fixp)
+{
+   uint32_t v;
+
+   v = VIV_FE_LOAD_STATE_HEADER_OP_LOAD_STATE |
+       COND(fixp, VIV_FE_LOAD_STATE_HEADER_FIXP) |
+       VIV_FE_LOAD_STATE_HEADER_OFFSET(offset) |
+       (VIV_FE_LOAD_STATE_HEADER_COUNT(count) &
+        VIV_FE_LOAD_STATE_HEADER_COUNT__MASK);
+
+   etna_cmd_stream_emit(stream, v);
+}
+
+static inline void
+etna_set_state(struct etna_cmd_stream *stream, uint32_t address, uint32_t value)
+{
+   etna_cmd_stream_reserve(stream, 2);
+   etna_emit_load_state(stream, address >> 2, 1, 0);
+   etna_cmd_stream_emit(stream, value);
+}
+
+static inline void
+etna_set_state_reloc(struct etna_cmd_stream *stream, uint32_t address,
+                     struct etna_reloc *reloc)
+{
+   etna_cmd_stream_reserve(stream, 2);
+   etna_emit_load_state(stream, address >> 2, 1, 0);
+   etna_cmd_stream_reloc(stream, reloc);
+}
+
+static inline void
+etna_set_state_multi(struct etna_cmd_stream *stream, uint32_t base,
+                     uint32_t num, const uint32_t *values)
+{
+   if (num == 0)
+      return;
+
+   etna_cmd_stream_reserve(stream, 1 + num + 1); /* 1 extra for potential alignment */
+   etna_emit_load_state(stream, base >> 2, num, 0);
+
+   for (uint32_t i = 0; i < num; i++)
+      etna_cmd_stream_emit(stream, values[i]);
+
+   /* add potential padding */
+   if ((num % 2) == 0)
+      etna_cmd_stream_emit(stream, 0);
+}
+
+void
+etna_stall(struct etna_cmd_stream *stream, uint32_t from, uint32_t to);
+
+void
+etna_submit_rs_state(struct etna_context *ctx, const struct compiled_rs_state *cs);
+
+static inline void
+etna_draw_primitives(struct etna_cmd_stream *stream, uint32_t primitive_type,
+                     uint32_t start, uint32_t count)
+{
+   etna_cmd_stream_reserve(stream, 4);
+
+   etna_cmd_stream_emit(stream, VIV_FE_DRAW_PRIMITIVES_HEADER_OP_DRAW_PRIMITIVES);
+   etna_cmd_stream_emit(stream, primitive_type);
+   etna_cmd_stream_emit(stream, start);
+   etna_cmd_stream_emit(stream, count);
+}
+
+static inline void
+etna_draw_indexed_primitives(struct etna_cmd_stream *stream,
+                             uint32_t primitive_type, uint32_t start,
+                             uint32_t count, uint32_t offset)
+{
+   etna_cmd_stream_reserve(stream, 5 + 1);
+
+   etna_cmd_stream_emit(stream, VIV_FE_DRAW_INDEXED_PRIMITIVES_HEADER_OP_DRAW_INDEXED_PRIMITIVES);
+   etna_cmd_stream_emit(stream, primitive_type);
+   etna_cmd_stream_emit(stream, start);
+   etna_cmd_stream_emit(stream, count);
+   etna_cmd_stream_emit(stream, offset);
+   etna_cmd_stream_emit(stream, 0);
+}
+
+void
+etna_emit_state(struct etna_context *ctx);
+
+#endif