broadcom: Add vc5 CLIF dumping

This will be usable with "VC5_DEBUG=cl" on the vc5 driver to stream a CLIF
file (the Broadcom equivalent of i965's AUB) to stderr.  I haven't tested
that this is actually usable with the internal CLIF-consuming tools, but
is close enough as a baseline and is useful for visually inspecting the
command stream.

2 files changed, 310 insertions, 0 deletions

diff --git a/src/broadcom/clif/clif_dump.c b/src/broadcom/clif/clif_dump.c
new file mode 100644
index 00000000000..8e9e248c0e4
--- /dev/null
+++ b/src/broadcom/clif/clif_dump.c
@@ -0,0 +1,268 @@
+/*
+ * Copyright © 2016 Broadcom
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "clif_dump.h"
+#include "util/list.h"
+#include "util/ralloc.h"
+
+#include "broadcom/cle/v3d_decoder.h"
+
+#define __gen_user_data void
+#define __gen_address_type uint32_t
+#define __gen_address_offset(reloc) (*reloc)
+#define __gen_emit_reloc(cl, reloc)
+#define __gen_unpack_address(cl, s, e) (__gen_unpack_uint(cl, s, e) << (31 - (e - s)))
+
+enum reloc_worklist_type {
+        reloc_gl_shader_state,
+};
+
+struct reloc_worklist_entry {
+        struct list_head link;
+
+        enum reloc_worklist_type type;
+        uint32_t addr;
+
+        union {
+                struct {
+                        uint32_t num_attrs;
+                } shader_state;
+        };
+};
+
+struct clif_dump {
+        const struct v3d_device_info *devinfo;
+        bool (*lookup_vaddr)(void *data, uint32_t addr, void **vaddr);
+        FILE *out;
+        /* Opaque data from the caller that is passed to the callbacks. */
+        void *data;
+
+        struct v3d_spec *spec;
+
+        /* List of struct reloc_worklist_entry */
+        struct list_head worklist;
+};
+
+static void
+out(struct clif_dump *clif, const char *fmt, ...)
+{
+        va_list args;
+
+        va_start(args, fmt);
+        vfprintf(clif->out, fmt, args);
+        va_end(args);
+}
+
+#include "broadcom/cle/v3d_packet_v33_pack.h"
+
+static struct reloc_worklist_entry *
+clif_dump_add_address_to_worklist(struct clif_dump *clif,
+                                  enum reloc_worklist_type type,
+                                  uint32_t addr)
+{
+        struct reloc_worklist_entry *entry =
+                rzalloc(clif, struct reloc_worklist_entry);
+        if (!entry)
+                return NULL;
+
+        entry->type = type;
+        entry->addr = addr;
+
+        list_addtail(&entry->link, &clif->worklist);
+
+        return entry;
+}
+
+struct clif_dump *
+clif_dump_init(const struct v3d_device_info *devinfo,
+               FILE *out,
+               bool (*lookup_vaddr)(void *data, uint32_t addr, void **vaddr),
+               void *data)
+{
+        struct clif_dump *clif = rzalloc(NULL, struct clif_dump);
+
+        clif->devinfo = devinfo;
+        clif->lookup_vaddr = lookup_vaddr;
+        clif->out = out;
+        clif->data = data;
+        clif->spec = v3d_spec_load(devinfo);
+
+        list_inithead(&clif->worklist);
+
+        return clif;
+}
+
+void
+clif_dump_destroy(struct clif_dump *clif)
+{
+        ralloc_free(clif);
+}
+
+#define out_uint(_clif, field) out(_clif, "    /* %s = */ %u\n",        \
+                            #field,  values-> field);
+
+static bool
+clif_dump_packet(struct clif_dump *clif, uint32_t offset, const uint8_t *cl,
+                 uint32_t *size)
+{
+        struct v3d_group *inst = v3d_spec_find_instruction(clif->spec, cl);
+        if (!inst) {
+                out(clif, "0x%08x: Unknown packet %d!\n", offset, *cl);
+                return false;
+        }
+
+        *size = v3d_group_get_length(inst);
+
+        out(clif, "%s\n", v3d_group_get_name(inst));
+        v3d_print_group(clif->out, inst, 0, cl, "");
+
+        switch (*cl) {
+        case V3D33_GL_SHADER_STATE_opcode: {
+                struct V3D33_GL_SHADER_STATE values;
+                V3D33_GL_SHADER_STATE_unpack(cl, &values);
+
+                struct reloc_worklist_entry *reloc =
+                        clif_dump_add_address_to_worklist(clif,
+                                                          reloc_gl_shader_state,
+                                                          values.address);
+                if (reloc) {
+                        reloc->shader_state.num_attrs =
+                                values.number_of_attribute_arrays;
+                }
+                return true;
+        }
+
+        case V3D33_STORE_MULTI_SAMPLE_RESOLVED_TILE_COLOR_BUFFER_EXTENDED_opcode: {
+                struct V3D33_STORE_MULTI_SAMPLE_RESOLVED_TILE_COLOR_BUFFER_EXTENDED values;
+                V3D33_STORE_MULTI_SAMPLE_RESOLVED_TILE_COLOR_BUFFER_EXTENDED_unpack(cl, &values);
+
+                if (values.last_tile_of_frame)
+                        return false;
+                break;
+        }
+
+        case V3D33_TRANSFORM_FEEDBACK_ENABLE_opcode: {
+                struct V3D33_TRANSFORM_FEEDBACK_ENABLE values;
+                V3D33_TRANSFORM_FEEDBACK_ENABLE_unpack(cl, &values);
+                struct v3d_group *spec = v3d_spec_find_struct(clif->spec,
+                                                              "Transform Feedback Output Data Spec");
+                struct v3d_group *addr = v3d_spec_find_struct(clif->spec,
+                                                              "Transform Feedback Output Address");
+                assert(spec);
+                assert(addr);
+
+                cl += *size;
+
+                for (int i = 0; i < values.number_of_16_bit_output_data_specs_following; i++) {
+                        v3d_print_group(clif->out, spec, 0, cl, "");
+                        cl += v3d_group_get_length(spec);
+                        *size += v3d_group_get_length(spec);
+                }
+
+                for (int i = 0; i < values.number_of_32_bit_output_buffer_address_following; i++) {
+                        v3d_print_group(clif->out, addr, 0, cl, "");
+                        cl += v3d_group_get_length(addr);
+                        *size += v3d_group_get_length(addr);
+                }
+                break;
+        }
+
+        case V3D33_HALT_opcode:
+                return false;
+        }
+
+        return true;
+}
+
+static void
+clif_dump_gl_shader_state_record(struct clif_dump *clif,
+                                 struct reloc_worklist_entry *reloc, void *vaddr)
+{
+        struct v3d_group *state = v3d_spec_find_struct(clif->spec,
+                                                       "GL Shader State Record");
+        struct v3d_group *attr = v3d_spec_find_struct(clif->spec,
+                                                      "GL Shader State Attribute Record");
+        assert(state);
+        assert(attr);
+
+        out(clif, "GL Shader State Record at 0x%08x\n", reloc->addr);
+        v3d_print_group(clif->out, state, 0, vaddr, "");
+        vaddr += v3d_group_get_length(state);
+
+        for (int i = 0; i < reloc->shader_state.num_attrs; i++) {
+                out(clif, "  Attribute %d\n", i);
+                v3d_print_group(clif->out, attr, 0, vaddr, "");
+                vaddr += v3d_group_get_length(attr);
+        }
+}
+
+static void
+clif_process_worklist(struct clif_dump *clif)
+{
+        while (!list_empty(&clif->worklist)) {
+                struct reloc_worklist_entry *reloc =
+                        list_first_entry(&clif->worklist,
+                                         struct reloc_worklist_entry, link);
+                list_del(&reloc->link);
+
+                void *vaddr;
+                if (!clif->lookup_vaddr(clif->data, reloc->addr, &vaddr)) {
+                        out(clif, "Failed to look up address 0x%08x\n",
+                            reloc->addr);
+                        continue;
+                }
+
+                switch (reloc->type) {
+                case reloc_gl_shader_state:
+                        clif_dump_gl_shader_state_record(clif, reloc, vaddr);
+                        break;
+                }
+                out(clif, "\n");
+        }
+}
+
+void
+clif_dump_add_cl(struct clif_dump *clif, uint32_t address)
+{
+        uint32_t size;
+
+        void *vaddr;
+        if (!clif->lookup_vaddr(clif->data, address, &vaddr)) {
+                out(clif, "Failed to look up address 0x%08x\n",
+                    address);
+                return;
+        }
+
+        uint8_t *cl = vaddr;
+        while (clif_dump_packet(clif, address, cl, &size)) {
+                cl += size;
+                address += size;
+        }
+
+        out(clif, "\n");
+
+        clif_process_worklist(clif);
+}
diff --git a/src/broadcom/clif/clif_dump.h b/src/broadcom/clif/clif_dump.h
new file mode 100644
index 00000000000..1201d83cb45
--- /dev/null
+++ b/src/broadcom/clif/clif_dump.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright © 2016 Broadcom
+ *
+ * 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.
+ */
+
+#ifndef CLIF_DUMP_H
+#define CLIF_DUMP_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+struct v3d_device_info;
+struct clif_dump;
+
+struct clif_dump *clif_dump_init(const struct v3d_device_info *devinfo,
+                                 FILE *output,
+                                 bool (*lookup_vaddr)(void *data, uint32_t addr,
+                                                      void **vaddr),
+                                 void *data);
+void clif_dump_destroy(struct clif_dump *clif);
+
+void clif_dump_add_cl(struct clif_dump *clif, uint32_t offset);
+
+#endif