etnaviv: add drm-shim

Signed-off-by: Christian Gmeiner <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>

4 files changed, 269 insertions, 0 deletions

diff --git a/src/etnaviv/drm-shim/README.md b/src/etnaviv/drm-shim/README.md
new file mode 100644
index 00000000000..4d27ca863ab
--- /dev/null
+++ b/src/etnaviv/drm-shim/README.md
@@ -0,0 +1,15 @@
+### etnaviv_noop backend
+
+This implements the minimum of etnaviv in order to make shader-db work.
+The submit ioctl is stubbed out to not execute anything.
+
+Export `MESA_LOADER_DRIVER_OVERRIDE=etnaviv
+LD_PRELOAD=$prefix/lib/libetnaviv_noop_drm_shim.so`.
+
+It is possible to select a specific GPU model by setting the ETNA_SHIM_GPU
+environment variable.
+
+The following GPU models are available:
+- GC2000 (default)
+- GC3000
+- GC7000L
diff --git a/src/etnaviv/drm-shim/etnaviv_noop.c b/src/etnaviv/drm-shim/etnaviv_noop.c
new file mode 100644
index 00000000000..f1f9e8a51f9
--- /dev/null
+++ b/src/etnaviv/drm-shim/etnaviv_noop.c
@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2019 Etnaviv Project
+ * Copyright (c) 2019 Zodiac Inflight Innovations
+ *
+ * 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:
+ *    Christian Gmeiner <[email protected]>
+ */
+
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include "drm-uapi/etnaviv_drm.h"
+#include "drm-shim/drm_shim.h"
+#include "util/u_debug.h"
+
+struct etna_shim_gpu
+{
+   const char *name;
+   const uint64_t *reg_map;
+};
+
+static const struct etna_shim_gpu gpus[] = {
+   {
+      .name = "GC2000",
+      .reg_map = (const uint64_t[]){
+         [ETNAVIV_PARAM_GPU_MODEL] = 0x2000,
+         [ETNAVIV_PARAM_GPU_REVISION] = 0x5108,
+         [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0296cad,
+         [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc9799eff,
+         [ETNAVIV_PARAM_GPU_FEATURES_2] = 0x2efbf2d9,
+         [ETNAVIV_PARAM_GPU_FEATURES_3] = 0x0,
+         [ETNAVIV_PARAM_GPU_FEATURES_4] = 0x0,
+         [ETNAVIV_PARAM_GPU_FEATURES_5] = 0x0,
+         [ETNAVIV_PARAM_GPU_FEATURES_6] = 0x0,
+         [ETNAVIV_PARAM_GPU_FEATURES_7] = 0x0,
+         [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x8,
+         [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
+         [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x400,
+         [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x10,
+         [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x4,
+         [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x2,
+         [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x200,
+         [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
+         [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x200,
+         [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0xa8,
+         [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0xb,
+         [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = ~0ULL,
+      }
+   },
+   {
+      .name = "GC3000",
+      .reg_map = (const uint64_t[]){
+         [ETNAVIV_PARAM_GPU_MODEL] = 0x3000,
+         [ETNAVIV_PARAM_GPU_REVISION] = 0x5450,
+         [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0287cad,
+         [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc9799efb,
+         [ETNAVIV_PARAM_GPU_FEATURES_2] = 0xfefbfadb,
+         [ETNAVIV_PARAM_GPU_FEATURES_3] = 0xeb9d4bbf,
+         [ETNAVIV_PARAM_GPU_FEATURES_4] = 0xedffdced,
+         [ETNAVIV_PARAM_GPU_FEATURES_5] = 0x930d2f47,
+         [ETNAVIV_PARAM_GPU_FEATURES_6] = 0x10000133,
+         [ETNAVIV_PARAM_GPU_FEATURES_7] = 0x0,
+         [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x10,
+         [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
+         [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x400,
+         [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x10,
+         [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x4,
+         [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x2,
+         [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x400,
+         [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
+         [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x100,
+         [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0x140,
+         [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0x10,
+         [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = ~0ULL,
+      }
+   },
+   {
+      .name = "GC7000L",
+      .reg_map = (const uint64_t[]){
+         [ETNAVIV_PARAM_GPU_MODEL] = 0x7000,
+         [ETNAVIV_PARAM_GPU_REVISION] = 0x6214,
+         [ETNAVIV_PARAM_GPU_FEATURES_0] = 0xe0287cad,
+         [ETNAVIV_PARAM_GPU_FEATURES_1] = 0xc1799eff,
+         [ETNAVIV_PARAM_GPU_FEATURES_2] = 0xfefbfad9,
+         [ETNAVIV_PARAM_GPU_FEATURES_3] = 0xeb9d4fbf,
+         [ETNAVIV_PARAM_GPU_FEATURES_4] = 0xedfffced,
+         [ETNAVIV_PARAM_GPU_FEATURES_5] = 0xdb0dafc7,
+         [ETNAVIV_PARAM_GPU_FEATURES_6] = 0xbb5ac333,
+         [ETNAVIV_PARAM_GPU_FEATURES_7] = 0xfc8ee200,
+         [ETNAVIV_PARAM_GPU_STREAM_COUNT] = 0x10,
+         [ETNAVIV_PARAM_GPU_REGISTER_MAX] = 0x40,
+         [ETNAVIV_PARAM_GPU_THREAD_COUNT] = 0x400,
+         [ETNAVIV_PARAM_GPU_VERTEX_CACHE_SIZE] = 0x10,
+         [ETNAVIV_PARAM_GPU_SHADER_CORE_COUNT] = 0x4,
+         [ETNAVIV_PARAM_GPU_PIXEL_PIPES] = 0x2,
+         [ETNAVIV_PARAM_GPU_VERTEX_OUTPUT_BUFFER_SIZE] = 0x400,
+         [ETNAVIV_PARAM_GPU_BUFFER_SIZE] = 0x0,
+         [ETNAVIV_PARAM_GPU_INSTRUCTION_COUNT] = 0x200,
+         [ETNAVIV_PARAM_GPU_NUM_CONSTANTS] = 0x140,
+         [ETNAVIV_PARAM_GPU_NUM_VARYINGS] = 0x10,
+         [ETNAVIV_PARAM_SOFTPIN_START_ADDR] = 0x00400000,
+      }
+   }
+};
+
+static const struct etna_shim_gpu *shim_gpu;
+
+static int
+etnaviv_ioctl_noop(int fd, unsigned long request, void *arg)
+{
+   return 0;
+}
+
+static int
+etnaviv_ioctl_gem_new(int fd, unsigned long request, void *arg)
+{
+   struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
+   struct drm_etnaviv_gem_new *create = arg;
+   struct shim_bo *bo = calloc(1, sizeof(*bo));
+
+   drm_shim_bo_init(bo, create->size);
+   create->handle = drm_shim_bo_get_handle(shim_fd, bo);
+   drm_shim_bo_put(bo);
+
+   return 0;
+}
+
+static int
+etnaviv_ioctl_gem_info(int fd, unsigned long request, void *arg)
+{
+   struct shim_fd *shim_fd = drm_shim_fd_lookup(fd);
+   struct drm_etnaviv_gem_info *args = arg;
+   struct shim_bo *bo = drm_shim_bo_lookup(shim_fd, args->handle);
+
+   args->offset = drm_shim_bo_get_mmap_offset(shim_fd, bo);
+   drm_shim_bo_put(bo);
+
+   return 0;
+}
+
+static int
+etnaviv_ioctl_get_param(int fd, unsigned long request, void *arg)
+{
+   struct drm_etnaviv_param *gp = arg;
+
+   if (gp->param > ETNAVIV_PARAM_SOFTPIN_START_ADDR) {
+      fprintf(stderr, "Unknown DRM_IOCTL_ETNAVIV_GET_PARAM %d\n", gp->param);
+      return -1;
+   }
+
+   gp->value = shim_gpu->reg_map[gp->param];
+
+   return 0;
+}
+
+static ioctl_fn_t driver_ioctls[] = {
+   [DRM_ETNAVIV_GET_PARAM] = etnaviv_ioctl_get_param,
+   [DRM_ETNAVIV_GEM_NEW] = etnaviv_ioctl_gem_new,
+   [DRM_ETNAVIV_GEM_INFO] = etnaviv_ioctl_gem_info,
+   [DRM_ETNAVIV_GEM_CPU_PREP] = etnaviv_ioctl_noop,
+   [DRM_ETNAVIV_GEM_CPU_FINI] = etnaviv_ioctl_noop,
+   [DRM_ETNAVIV_GEM_SUBMIT] = etnaviv_ioctl_noop,
+   [DRM_ETNAVIV_WAIT_FENCE] = etnaviv_ioctl_noop,
+   [DRM_ETNAVIV_GEM_USERPTR] = etnaviv_ioctl_noop,
+   [DRM_ETNAVIV_GEM_WAIT] = etnaviv_ioctl_noop,
+   [DRM_ETNAVIV_PM_QUERY_DOM] = etnaviv_ioctl_noop,
+   [DRM_ETNAVIV_PM_QUERY_SIG] = etnaviv_ioctl_noop,
+};
+
+void
+drm_shim_driver_init(void)
+{
+   shim_device.driver_name = "etnaviv";
+   shim_device.driver_ioctls = driver_ioctls;
+   shim_device.driver_ioctl_count = ARRAY_SIZE(driver_ioctls);
+
+   /* etnaviv uses the DRM version to expose features, instead of getparam. */
+   shim_device.version_major = 1;
+   shim_device.version_minor = 1;
+   shim_device.version_patchlevel = 0;
+
+   drm_shim_override_file("DRIVER=etnaviv\n"
+         "MODALIAS=platform:etnaviv\n",
+         "/sys/dev/char/%d:%d/device/uevent",
+         DRM_MAJOR, render_node_minor);
+
+   /* decide what GPU to emulate */
+   const char *gpu = debug_get_option("ETNA_SHIM_GPU", "GC2000");
+
+   for (unsigned i = 0; i < ARRAY_SIZE(gpus); i++) {
+      if (strncasecmp(gpu, gpus[i].name, strlen(gpus[i].name)) == 0) {
+         shim_gpu = &gpus[i];
+         break;
+      }
+   }
+
+   /* NOTE: keep keep default value and fallback index in sync */
+   if (!shim_gpu)
+      shim_gpu = &gpus[0];
+
+   fprintf(stderr, "Using %s as shim gpu\n", shim_gpu->name);
+}
diff --git a/src/etnaviv/drm-shim/meson.build b/src/etnaviv/drm-shim/meson.build
new file mode 100644
index 00000000000..511fa7070cf
--- /dev/null
+++ b/src/etnaviv/drm-shim/meson.build
@@ -0,0 +1,30 @@
+# Copyright (c) 2019 Etnaviv Project
+# Copyright (c) 2019 Zodiac Inflight Innovations
+#
+# 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 (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 NONINFRINGEMENT.  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.
+
+libetnaviv_noop_drm_shim = shared_library(
+  'etnaviv_noop_drm_shim',
+  'etnaviv_noop.c',
+  include_directories: inc_common,
+  dependencies: dep_drm_shim,
+  c_args : c_vis_args,
+  install : true,
+)
diff --git a/src/etnaviv/meson.build b/src/etnaviv/meson.build
index a3c9eafdc2d..f2292c6dd12 100644
--- a/src/etnaviv/meson.build
+++ b/src/etnaviv/meson.build
@@ -21,3 +21,7 @@
 inc_etnaviv = include_directories(['.'])
 
 subdir('drm')
+
+if with_tools.contains('drm-shim')
+  subdir('drm-shim')
+endif