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, 152 insertions, 0 deletions

diff --git a/src/gallium/drivers/etnaviv/etnaviv_surface.c b/src/gallium/drivers/etnaviv/etnaviv_surface.c
new file mode 100644
index 00000000000..a0013a48bcf
--- /dev/null
+++ b/src/gallium/drivers/etnaviv/etnaviv_surface.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2012-2013 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]>
+ */
+
+#include "etnaviv_surface.h"
+#include "etnaviv_screen.h"
+
+#include "etnaviv_clear_blit.h"
+#include "etnaviv_context.h"
+#include "etnaviv_translate.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_state.h"
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+
+#include "hw/common.xml.h"
+
+static struct pipe_surface *
+etna_create_surface(struct pipe_context *pctx, struct pipe_resource *prsc,
+                    const struct pipe_surface *templat)
+{
+   struct etna_context *ctx = etna_context(pctx);
+   struct etna_resource *rsc = etna_resource(prsc);
+   struct etna_surface *surf = CALLOC_STRUCT(etna_surface);
+
+   if (!surf)
+      return NULL;
+
+   assert(templat->u.tex.first_layer == templat->u.tex.last_layer);
+   unsigned layer = templat->u.tex.first_layer;
+   unsigned level = templat->u.tex.level;
+   assert(layer < rsc->base.array_size);
+
+   surf->base.context = pctx;
+
+   pipe_reference_init(&surf->base.reference, 1);
+   pipe_resource_reference(&surf->base.texture, &rsc->base);
+
+   /* Allocate a TS for the resource if there isn't one yet,
+    * and it is allowed by the hw (width is a multiple of 16).
+    * Avoid doing this for GPUs with MC1.0, as kernel sources
+    * indicate the tile status module bypasses the memory
+    * offset and MMU. */
+
+   /* XXX for now, don't do TS for render textures as this path
+    * is not stable. */
+   if (VIV_FEATURE(ctx->screen, chipFeatures, FAST_CLEAR) &&
+       VIV_FEATURE(ctx->screen, chipMinorFeatures0, MC20) &&
+       !DBG_ENABLED(ETNA_DBG_NO_TS) && !rsc->ts_bo &&
+       !(rsc->base.bind & (PIPE_BIND_SAMPLER_VIEW)) &&
+       (rsc->levels[level].padded_width & ETNA_RS_WIDTH_MASK) == 0 &&
+       (rsc->levels[level].padded_height & ETNA_RS_HEIGHT_MASK) == 0) {
+      etna_screen_resource_alloc_ts(pctx->screen, rsc);
+   }
+
+   surf->base.texture = &rsc->base;
+   surf->base.format = rsc->base.format;
+   surf->base.width = rsc->levels[level].width;
+   surf->base.height = rsc->levels[level].height;
+   surf->base.writable = templat->writable; /* what is this for anyway */
+   surf->base.u = templat->u;
+
+   surf->level = &rsc->levels[level]; /* Keep pointer to actual level to set
+                                       * clear color on underlying resource
+                                       * instead of surface */
+   surf->surf = rsc->levels [level];  /* Make copy of level to narrow down
+                                       * address to layer */
+
+   /* XXX we don't really need a copy but it's convenient */
+   surf->surf.offset += layer * surf->surf.layer_stride;
+
+   struct etna_resource_level *lev = &rsc->levels[level];
+
+   /* Setup template relocations for this surface */
+   surf->reloc[0].bo = rsc->bo;
+   surf->reloc[0].offset = surf->surf.offset;
+   surf->reloc[0].flags = 0;
+   surf->reloc[1].bo = rsc->bo;
+   surf->reloc[1].offset = surf->surf.offset + lev->stride * lev->padded_height / 2;
+   surf->reloc[1].flags = 0;
+
+   if (surf->surf.ts_size) {
+      unsigned int layer_offset = layer * surf->surf.ts_layer_stride;
+      assert(layer_offset < surf->surf.ts_size);
+
+      surf->surf.ts_offset += layer_offset;
+      surf->surf.ts_size -= layer_offset;
+
+      surf->ts_reloc.bo = rsc->ts_bo;
+      surf->ts_reloc.offset = surf->surf.ts_offset;
+      surf->ts_reloc.flags = 0;
+
+      /* This (ab)uses the RS as a plain buffer memset().
+       * Currently uses a fixed row size of 64 bytes. Some benchmarking with
+       * different sizes may be in order. */
+      struct etna_bo *ts_bo = etna_resource(surf->base.texture)->ts_bo;
+      etna_compile_rs_state(ctx, &surf->clear_command, &(struct rs_state) {
+         .source_format = RS_FORMAT_A8R8G8B8,
+         .dest_format = RS_FORMAT_A8R8G8B8,
+         .dest = ts_bo,
+         .dest_offset = surf->surf.ts_offset,
+         .dest_stride = 0x40,
+         .dest_tiling = ETNA_LAYOUT_TILED,
+         .dither = {0xffffffff, 0xffffffff},
+         .width = 16,
+         .height = etna_align_up(surf->surf.ts_size / 0x40, 4),
+         .clear_value = {ctx->specs.ts_clear_value},
+         .clear_mode = VIVS_RS_CLEAR_CONTROL_MODE_ENABLED1,
+         .clear_bits = 0xffff
+      });
+   } else {
+      etna_rs_gen_clear_surface(ctx, surf, surf->level->clear_value);
+   }
+
+   return &surf->base;
+}
+
+static void
+etna_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
+{
+   pipe_resource_reference(&psurf->texture, NULL);
+   FREE(psurf);
+}
+
+void
+etna_surface_init(struct pipe_context *pctx)
+{
+   pctx->create_surface = etna_create_surface;
+   pctx->surface_destroy = etna_surface_destroy;
+}