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 <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Acked-by: Emil Velikov <emil.velikov@collabora.com>

1 files changed, 194 insertions, 0 deletions

diff --git a/src/gallium/drivers/etnaviv/etnaviv_context.h b/src/gallium/drivers/etnaviv/etnaviv_context.h
new file mode 100644
index 0000000000..74e93e1631
--- /dev/null
+++ b/src/gallium/drivers/etnaviv/etnaviv_context.h
@@ -0,0 +1,194 @@
+/*
+ * 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 <laanwj@gmail.com>
+ *    Christian Gmeiner <christian.gmeiner@gmail.com>
+ */
+
+#ifndef H_ETNAVIV_CONTEXT
+#define H_ETNAVIV_CONTEXT
+
+#include <stdint.h>
+
+#include "etnaviv_resource.h"
+#include "etnaviv_tiling.h"
+#include "indices/u_primconvert.h"
+#include "pipe/p_context.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_format.h"
+#include "pipe/p_shader_tokens.h"
+#include "pipe/p_state.h"
+#include "util/slab.h"
+
+struct pipe_screen;
+struct etna_shader;
+
+struct etna_index_buffer {
+   struct pipe_index_buffer ib;
+   struct etna_reloc FE_INDEX_STREAM_BASE_ADDR;
+   uint32_t FE_INDEX_STREAM_CONTROL;
+   uint32_t FE_PRIMITIVE_RESTART_INDEX;
+};
+
+struct etna_shader_input {
+   int vs_reg; /* VS input register */
+};
+
+enum etna_varying_special {
+   ETNA_VARYING_VSOUT = 0, /* from VS */
+   ETNA_VARYING_POINTCOORD, /* point texture coord */
+};
+
+struct etna_shader_varying {
+   int num_components;
+   enum etna_varying_special special;
+   int pa_attributes;
+   int vs_reg; /* VS output register */
+};
+
+struct etna_transfer {
+   struct pipe_transfer base;
+   struct pipe_resource *rsc;
+   void *staging;
+};
+
+struct etna_vertexbuf_state {
+   struct pipe_vertex_buffer vb[PIPE_MAX_ATTRIBS];
+   struct compiled_set_vertex_buffer cvb[PIPE_MAX_ATTRIBS];
+   unsigned count;
+   uint32_t enabled_mask;
+};
+
+enum etna_immediate_contents {
+   ETNA_IMMEDIATE_UNUSED = 0,
+   ETNA_IMMEDIATE_CONSTANT,
+   ETNA_IMMEDIATE_TEXRECT_SCALE_X,
+   ETNA_IMMEDIATE_TEXRECT_SCALE_Y,
+};
+
+struct etna_shader_uniform_info {
+   enum etna_immediate_contents *imm_contents;
+   uint32_t *imm_data;
+   uint32_t imm_count;
+   uint32_t const_count;
+};
+
+struct etna_context {
+   struct pipe_context base;
+
+   struct etna_specs specs;
+   struct etna_screen *screen;
+   struct etna_cmd_stream *stream;
+
+   /* which state objects need to be re-emit'd: */
+   enum {
+      ETNA_DIRTY_BLEND           = (1 << 0),
+      ETNA_DIRTY_SAMPLERS        = (1 << 1),
+      ETNA_DIRTY_RASTERIZER      = (1 << 2),
+      ETNA_DIRTY_ZSA             = (1 << 3),
+      ETNA_DIRTY_VERTEX_ELEMENTS = (1 << 4),
+      ETNA_DIRTY_BLEND_COLOR     = (1 << 6),
+      ETNA_DIRTY_STENCIL_REF     = (1 << 7),
+      ETNA_DIRTY_SAMPLE_MASK     = (1 << 8),
+      ETNA_DIRTY_VIEWPORT        = (1 << 9),
+      ETNA_DIRTY_FRAMEBUFFER     = (1 << 10),
+      ETNA_DIRTY_SCISSOR         = (1 << 11),
+      ETNA_DIRTY_SAMPLER_VIEWS   = (1 << 12),
+      ETNA_DIRTY_CONSTBUF        = (1 << 13),
+      ETNA_DIRTY_VERTEX_BUFFERS  = (1 << 14),
+      ETNA_DIRTY_INDEX_BUFFER    = (1 << 15),
+      ETNA_DIRTY_SHADER          = (1 << 16),
+      ETNA_DIRTY_TS              = (1 << 17),
+      ETNA_DIRTY_TEXTURE_CACHES  = (1 << 18),
+   } dirty;
+
+   uint32_t prim_hwsupport;
+   struct primconvert_context *primconvert;
+
+   /* list of resources used by currently-unsubmitted renders */
+   struct list_head used_resources;
+
+   struct slab_child_pool transfer_pool;
+   struct blitter_context *blitter;
+
+   /* compiled bindable state */
+   unsigned sample_mask;
+   struct pipe_blend_state *blend;
+   unsigned num_fragment_samplers;
+   uint32_t active_samplers;
+   struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
+   struct pipe_rasterizer_state *rasterizer;
+   struct pipe_depth_stencil_alpha_state *zsa;
+   struct compiled_vertex_elements_state *vertex_elements;
+   struct compiled_shader_state shader_state;
+
+   /* to simplify the emit process we store pre compiled state objects,
+    * which got 'compiled' during state change. */
+   struct compiled_blend_color blend_color;
+   struct compiled_stencil_ref stencil_ref;
+   struct compiled_framebuffer_state framebuffer;
+   struct compiled_scissor_state scissor;
+   struct compiled_viewport_state viewport;
+   unsigned num_fragment_sampler_views;
+   uint32_t active_sampler_views;
+   struct pipe_sampler_view *sampler_view[PIPE_MAX_SAMPLERS];
+   struct pipe_constant_buffer constant_buffer[PIPE_SHADER_TYPES];
+   struct etna_vertexbuf_state vertex_buffer;
+   struct etna_index_buffer index_buffer;
+
+   /* pointers to the bound state. these are mainly kept around for the blitter */
+   struct etna_shader *vs;
+   struct etna_shader *fs;
+
+   /* saved parameter-like state. these are mainly kept around for the blitter */
+   struct pipe_framebuffer_state framebuffer_s;
+   struct pipe_stencil_ref stencil_ref_s;
+   struct pipe_viewport_state viewport_s;
+   struct pipe_scissor_state scissor_s;
+
+   /* cached state of entire GPU */
+   struct etna_3d_state gpu3d;
+
+   /* stats/counters */
+   struct {
+      uint64_t prims_emitted;
+      uint64_t draw_calls;
+   } stats;
+};
+
+static inline struct etna_context *
+etna_context(struct pipe_context *pctx)
+{
+   return (struct etna_context *)pctx;
+}
+
+static inline struct etna_transfer *
+etna_transfer(struct pipe_transfer *p)
+{
+   return (struct etna_transfer *)p;
+}
+
+struct pipe_context *
+etna_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags);
+
+#endif