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mesa/src/panfrost/lib/decode.c
Alyssa Rosenzweig 0aa3e959b8 pan/decode: Remove unused MEMORY_PROP macro 
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8829>
2021-02-03 14:04:52 +00:00

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/*
* Copyright (C) 2017-2019 Alyssa Rosenzweig
* Copyright (C) 2017-2019 Connor Abbott
* Copyright (C) 2019 Collabora, Ltd.
*
* 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 <midgard_pack.h>
#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include <stdbool.h>
#include <stdarg.h>
#include <ctype.h>
#include "decode.h"
#include "util/macros.h"
#include "util/u_math.h"
#include "midgard/disassemble.h"
#include "bifrost/disassemble.h"
#define MEMORY_PROP_DIR(obj, p) {\
if (obj.p) { \
char *a = pointer_as_memory_reference(obj.p); \
pandecode_prop("%s = %s", #p, a); \
free(a); \
} \
}
#define DUMP_UNPACKED(T, var, ...) { \
pandecode_log(__VA_ARGS__); \
pan_print(pandecode_dump_stream, T, var, (pandecode_indent + 1) * 2); \
}
#define DUMP_CL(T, cl, ...) {\
pan_unpack(cl, T, temp); \
DUMP_UNPACKED(T, temp, __VA_ARGS__); \
}
#define DUMP_SECTION(A, S, cl, ...) { \
pan_section_unpack(cl, A, S, temp); \
pandecode_log(__VA_ARGS__); \
pan_section_print(pandecode_dump_stream, A, S, temp, (pandecode_indent + 1) * 2); \
}
#define MAP_ADDR(T, addr, cl) \
const uint8_t *cl = 0; \
{ \
struct pandecode_mapped_memory *mapped_mem = pandecode_find_mapped_gpu_mem_containing(addr); \
cl = pandecode_fetch_gpu_mem(mapped_mem, addr, MALI_ ## T ## _LENGTH); \
}
#define DUMP_ADDR(T, addr, ...) {\
MAP_ADDR(T, addr, cl) \
DUMP_CL(T, cl, __VA_ARGS__); \
}
FILE *pandecode_dump_stream;
/* Semantic logging type.
*
* Raw: for raw messages to be printed as is.
* Message: for helpful information to be commented out in replays.
* Property: for properties of a struct
*
* Use one of pandecode_log, pandecode_msg, or pandecode_prop as syntax sugar.
*/
enum pandecode_log_type {
PANDECODE_RAW,
PANDECODE_MESSAGE,
PANDECODE_PROPERTY
};
#define pandecode_log(...) pandecode_log_typed(PANDECODE_RAW, __VA_ARGS__)
#define pandecode_msg(...) pandecode_log_typed(PANDECODE_MESSAGE, __VA_ARGS__)
#define pandecode_prop(...) pandecode_log_typed(PANDECODE_PROPERTY, __VA_ARGS__)
unsigned pandecode_indent = 0;
static void
pandecode_make_indent(void)
{
for (unsigned i = 0; i < pandecode_indent; ++i)
fprintf(pandecode_dump_stream, " ");
}
static void PRINTFLIKE(2, 3)
pandecode_log_typed(enum pandecode_log_type type, const char *format, ...)
{
va_list ap;
pandecode_make_indent();
if (type == PANDECODE_MESSAGE)
fprintf(pandecode_dump_stream, "// ");
else if (type == PANDECODE_PROPERTY)
fprintf(pandecode_dump_stream, ".");
va_start(ap, format);
vfprintf(pandecode_dump_stream, format, ap);
va_end(ap);
if (type == PANDECODE_PROPERTY)
fprintf(pandecode_dump_stream, ",\n");
}
static void
pandecode_log_cont(const char *format, ...)
{
va_list ap;
va_start(ap, format);
vfprintf(pandecode_dump_stream, format, ap);
va_end(ap);
}
/* To check for memory safety issues, validates that the given pointer in GPU
* memory is valid, containing at least sz bytes. The goal is to eliminate
* GPU-side memory bugs (NULL pointer dereferences, buffer overflows, or buffer
* overruns) by statically validating pointers.
*/
static void
pandecode_validate_buffer(mali_ptr addr, size_t sz)
{
if (!addr) {
pandecode_msg("XXX: null pointer deref");
return;
}
/* Find a BO */
struct pandecode_mapped_memory *bo =
pandecode_find_mapped_gpu_mem_containing(addr);
if (!bo) {
pandecode_msg("XXX: invalid memory dereference\n");
return;
}
/* Bounds check */
unsigned offset = addr - bo->gpu_va;
unsigned total = offset + sz;
if (total > bo->length) {
pandecode_msg("XXX: buffer overrun. "
"Chunk of size %zu at offset %d in buffer of size %zu. "
"Overrun by %zu bytes. \n",
sz, offset, bo->length, total - bo->length);
return;
}
}
/* Midgard's tiler descriptor is embedded within the
* larger FBD */
static void
pandecode_midgard_tiler_descriptor(
const struct mali_midgard_tiler_packed *tp,
const struct mali_midgard_tiler_weights_packed *wp,
unsigned width,
unsigned height,
bool is_fragment,
bool has_hierarchy)
{
pan_unpack(tp, MIDGARD_TILER, t);
DUMP_UNPACKED(MIDGARD_TILER, t, "Tiler:\n");
MEMORY_PROP_DIR(t, polygon_list);
/* The tiler heap has a start and end specified -- it should be
* identical to what we have in the BO. The exception is if tiling is
* disabled. */
MEMORY_PROP_DIR(t, heap_start);
assert(t.heap_end >= t.heap_start);
unsigned heap_size = t.heap_end - t.heap_start;
/* Tiling is enabled with a special flag */
unsigned hierarchy_mask = t.hierarchy_mask & MALI_MIDGARD_TILER_HIERARCHY_MASK;
unsigned tiler_flags = t.hierarchy_mask ^ hierarchy_mask;
bool tiling_enabled = hierarchy_mask;
if (tiling_enabled) {
/* We should also have no other flags */
if (tiler_flags)
pandecode_msg("XXX: unexpected tiler %X\n", tiler_flags);
} else {
/* When tiling is disabled, we should have that flag and no others */
if (tiler_flags != MALI_MIDGARD_TILER_DISABLED) {
pandecode_msg("XXX: unexpected tiler flag %X, expected MALI_MIDGARD_TILER_DISABLED\n",
tiler_flags);
}
/* We should also have an empty heap */
if (heap_size) {
pandecode_msg("XXX: tiler heap size %d given, expected empty\n",
heap_size);
}
/* Disabled tiling is used only for clear-only jobs, which are
* purely FRAGMENT, so we should never see this for
* non-FRAGMENT descriptors. */
if (!is_fragment)
pandecode_msg("XXX: tiler disabled for non-FRAGMENT job\n");
}
/* We've never seen weights used in practice, but we know from the
* kernel these fields is there */
pan_unpack(wp, MIDGARD_TILER_WEIGHTS, w);
bool nonzero_weights = false;
nonzero_weights |= w.weight0 != 0x0;
nonzero_weights |= w.weight1 != 0x0;
nonzero_weights |= w.weight2 != 0x0;
nonzero_weights |= w.weight3 != 0x0;
nonzero_weights |= w.weight4 != 0x0;
nonzero_weights |= w.weight5 != 0x0;
nonzero_weights |= w.weight6 != 0x0;
nonzero_weights |= w.weight7 != 0x0;
if (nonzero_weights)
DUMP_UNPACKED(MIDGARD_TILER_WEIGHTS, w, "Tiler Weights:\n");
}
/* Information about the framebuffer passed back for
* additional analysis */
struct pandecode_fbd {
unsigned width;
unsigned height;
unsigned rt_count;
bool has_extra;
};
static struct pandecode_fbd
pandecode_sfbd(uint64_t gpu_va, int job_no, bool is_fragment, unsigned gpu_id)
{
struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
const void *PANDECODE_PTR_VAR(s, mem, (mali_ptr) gpu_va);
struct pandecode_fbd info = {
.has_extra = false,
.rt_count = 1
};
pandecode_log("Single-Target Framebuffer:\n");
pandecode_indent++;
DUMP_SECTION(SINGLE_TARGET_FRAMEBUFFER, LOCAL_STORAGE, s, "Local Storage:\n");
pan_section_unpack(s, SINGLE_TARGET_FRAMEBUFFER, PARAMETERS, p);
DUMP_UNPACKED(SINGLE_TARGET_FRAMEBUFFER_PARAMETERS, p, "Parameters:\n");
const void *t = pan_section_ptr(s, SINGLE_TARGET_FRAMEBUFFER, TILER);
const void *w = pan_section_ptr(s, SINGLE_TARGET_FRAMEBUFFER, TILER_WEIGHTS);
bool has_hierarchy = !(gpu_id == 0x0720 || gpu_id == 0x0820 || gpu_id == 0x0830);
pandecode_midgard_tiler_descriptor(t, w, p.bound_max_x + 1, p.bound_max_y + 1, is_fragment, has_hierarchy);
pandecode_indent--;
/* Dummy unpack of the padding section to make sure all words are 0.
* No need to call print here since the section is supposed to be empty.
*/
pan_section_unpack(s, SINGLE_TARGET_FRAMEBUFFER, PADDING_1, padding1);
pan_section_unpack(s, SINGLE_TARGET_FRAMEBUFFER, PADDING_2, padding2);
pandecode_log("\n");
return info;
}
static void
pandecode_compute_fbd(uint64_t gpu_va, int job_no)
{
struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
const struct mali_local_storage_packed *PANDECODE_PTR_VAR(s, mem, (mali_ptr) gpu_va);
DUMP_CL(LOCAL_STORAGE, s, "Local Storage:\n");
}
static void
pandecode_render_target(uint64_t gpu_va, unsigned job_no, bool is_bifrost, unsigned gpu_id,
const struct MALI_MULTI_TARGET_FRAMEBUFFER_PARAMETERS *fb)
{
pandecode_log("Color Render Targets:\n");
pandecode_indent++;
for (int i = 0; i < (fb->render_target_count); i++) {
mali_ptr rt_va = gpu_va + i * MALI_RENDER_TARGET_LENGTH;
struct pandecode_mapped_memory *mem =
pandecode_find_mapped_gpu_mem_containing(rt_va);
const struct mali_render_target_packed *PANDECODE_PTR_VAR(rtp, mem, (mali_ptr) rt_va);
DUMP_CL(RENDER_TARGET, rtp, "Color Render Target %d:\n", i);
}
pandecode_indent--;
pandecode_log("\n");
}
static void
pandecode_mfbd_bifrost_deps(const void *fb, int job_no)
{
pan_section_unpack(fb, MULTI_TARGET_FRAMEBUFFER, BIFROST_PARAMETERS, params);
/* The blob stores all possible sample locations in a single buffer
* allocated on startup, and just switches the pointer when switching
* MSAA state. For now, we just put the data into the cmdstream, but we
* should do something like what the blob does with a real driver.
*
* There seem to be 32 slots for sample locations, followed by another
* 16. The second 16 is just the center location followed by 15 zeros
* in all the cases I've identified (maybe shader vs. depth/color
* samples?).
*/
struct pandecode_mapped_memory *smem =
pandecode_find_mapped_gpu_mem_containing(params.sample_locations);
const u16 *PANDECODE_PTR_VAR(samples, smem, params.sample_locations);
pandecode_log("uint16_t sample_locations_%d[] = {\n", job_no);
pandecode_indent++;
for (int i = 0; i < 32 + 16; i++) {
pandecode_log("%d, %d,\n", samples[2 * i], samples[2 * i + 1]);
}
pandecode_indent--;
pandecode_log("};\n");
}
static struct pandecode_fbd
pandecode_mfbd_bfr(uint64_t gpu_va, int job_no, bool is_fragment, bool is_compute, bool is_bifrost, unsigned gpu_id)
{
struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
const void *PANDECODE_PTR_VAR(fb, mem, (mali_ptr) gpu_va);
pan_section_unpack(fb, MULTI_TARGET_FRAMEBUFFER, PARAMETERS, params);
struct pandecode_fbd info;
if (is_bifrost)
pandecode_mfbd_bifrost_deps(fb, job_no);
pandecode_log("Multi-Target Framebuffer:\n");
pandecode_indent++;
if (is_bifrost) {
DUMP_SECTION(MULTI_TARGET_FRAMEBUFFER, BIFROST_PARAMETERS, fb, "Bifrost Params:\n");
} else {
DUMP_SECTION(MULTI_TARGET_FRAMEBUFFER, LOCAL_STORAGE, fb, "Local Storage:\n");
}
info.width = params.width;
info.height = params.height;
info.rt_count = params.render_target_count;
DUMP_UNPACKED(MULTI_TARGET_FRAMEBUFFER_PARAMETERS, params, "Parameters:\n");
if (!is_compute) {
if (is_bifrost) {
DUMP_SECTION(MULTI_TARGET_FRAMEBUFFER, BIFROST_TILER_POINTER, fb, "Tiler Pointer");
} else {
const void *t = pan_section_ptr(fb, MULTI_TARGET_FRAMEBUFFER, TILER);
const void *w = pan_section_ptr(fb, MULTI_TARGET_FRAMEBUFFER, TILER_WEIGHTS);
pandecode_midgard_tiler_descriptor(t, w, params.width, params.height, is_fragment, true);
}
} else {
pandecode_msg("XXX: skipping compute MFBD, fixme\n");
}
if (is_bifrost) {
pan_section_unpack(fb, MULTI_TARGET_FRAMEBUFFER, BIFROST_PADDING, padding);
}
pandecode_indent--;
pandecode_log("\n");
gpu_va += MALI_MULTI_TARGET_FRAMEBUFFER_LENGTH;
info.has_extra = params.has_zs_crc_extension;
if (info.has_extra) {
struct pandecode_mapped_memory *mem =
pandecode_find_mapped_gpu_mem_containing(gpu_va);
const struct mali_zs_crc_extension_packed *PANDECODE_PTR_VAR(zs_crc, mem, (mali_ptr)gpu_va);
DUMP_CL(ZS_CRC_EXTENSION, zs_crc, "ZS CRC Extension:\n");
pandecode_log("\n");
gpu_va += MALI_ZS_CRC_EXTENSION_LENGTH;
}
if (is_fragment)
pandecode_render_target(gpu_va, job_no, is_bifrost, gpu_id, &params);
return info;
}
static void
pandecode_attributes(const struct pandecode_mapped_memory *mem,
mali_ptr addr, int job_no, char *suffix,
int count, bool varying, enum mali_job_type job_type)
{
char *prefix = varying ? "Varying" : "Attribute";
assert(addr);
if (!count) {
pandecode_msg("warn: No %s records\n", prefix);
return;
}
MAP_ADDR(ATTRIBUTE_BUFFER, addr, cl);
for (int i = 0; i < count; ++i) {
pan_unpack(cl + i * MALI_ATTRIBUTE_BUFFER_LENGTH, ATTRIBUTE_BUFFER, temp);
DUMP_UNPACKED(ATTRIBUTE_BUFFER, temp, "%s:\n", prefix);
switch (temp.type) {
case MALI_ATTRIBUTE_TYPE_1D_NPOT_DIVISOR_WRITE_REDUCTION:
case MALI_ATTRIBUTE_TYPE_1D_NPOT_DIVISOR: {
pan_unpack(cl + (i + 1) * MALI_ATTRIBUTE_BUFFER_LENGTH,
ATTRIBUTE_BUFFER_CONTINUATION_NPOT, temp2);
pan_print(pandecode_dump_stream, ATTRIBUTE_BUFFER_CONTINUATION_NPOT,
temp2, (pandecode_indent + 1) * 2);
i++; count++;
break;
}
case MALI_ATTRIBUTE_TYPE_3D_LINEAR:
case MALI_ATTRIBUTE_TYPE_3D_INTERLEAVED: {
pan_unpack(cl + (i + 1) * MALI_ATTRIBUTE_BUFFER_CONTINUATION_3D_LENGTH,
ATTRIBUTE_BUFFER_CONTINUATION_3D, temp2);
pan_print(pandecode_dump_stream, ATTRIBUTE_BUFFER_CONTINUATION_3D,
temp2, (pandecode_indent + 1) * 2);
i++; count++;
break;
}
default:
break;
}
}
pandecode_log("\n");
}
/* Decodes a Bifrost blend constant. See the notes in bifrost_blend_rt */
static mali_ptr
pandecode_bifrost_blend(void *descs, int job_no, int rt_no, mali_ptr frag_shader)
{
pan_unpack(descs + (rt_no * MALI_BLEND_LENGTH), BLEND, b);
DUMP_UNPACKED(BLEND, b, "Blend RT %d:\n", rt_no);
if (b.bifrost.internal.mode != MALI_BIFROST_BLEND_MODE_SHADER)
return 0;
return (frag_shader & 0xFFFFFFFF00000000ULL) | b.bifrost.internal.shader.pc;
}
static mali_ptr
pandecode_midgard_blend_mrt(void *descs, int job_no, int rt_no)
{
pan_unpack(descs + (rt_no * MALI_BLEND_LENGTH), BLEND, b);
DUMP_UNPACKED(BLEND, b, "Blend RT %d:\n", rt_no);
return b.midgard.blend_shader ? (b.midgard.shader_pc & ~0xf) : 0;
}
/* Attributes and varyings have descriptor records, which contain information
* about their format and ordering with the attribute/varying buffers. We'll
* want to validate that the combinations specified are self-consistent.
*/
static int
pandecode_attribute_meta(int count, mali_ptr attribute, bool varying, char *suffix)
{
for (int i = 0; i < count; ++i, attribute += MALI_ATTRIBUTE_LENGTH)
DUMP_ADDR(ATTRIBUTE, attribute, "%s:\n", varying ? "Varying" : "Attribute");
pandecode_log("\n");
return count;
}
/* return bits [lo, hi) of word */
static u32
bits(u32 word, u32 lo, u32 hi)
{
if (hi - lo >= 32)
return word; // avoid undefined behavior with the shift
return (word >> lo) & ((1 << (hi - lo)) - 1);
}
static void
pandecode_invocation(const void *i)
{
/* Decode invocation_count. See the comment before the definition of
* invocation_count for an explanation.
*/
pan_unpack(i, INVOCATION, invocation);
unsigned size_x = bits(invocation.invocations, 0, invocation.size_y_shift) + 1;
unsigned size_y = bits(invocation.invocations, invocation.size_y_shift, invocation.size_z_shift) + 1;
unsigned size_z = bits(invocation.invocations, invocation.size_z_shift, invocation.workgroups_x_shift) + 1;
unsigned groups_x = bits(invocation.invocations, invocation.workgroups_x_shift, invocation.workgroups_y_shift) + 1;
unsigned groups_y = bits(invocation.invocations, invocation.workgroups_y_shift, invocation.workgroups_z_shift) + 1;
unsigned groups_z = bits(invocation.invocations, invocation.workgroups_z_shift, 32) + 1;
pandecode_log("Invocation (%d, %d, %d) x (%d, %d, %d)\n",
size_x, size_y, size_z,
groups_x, groups_y, groups_z);
DUMP_UNPACKED(INVOCATION, invocation, "Invocation:\n")
}
static void
pandecode_primitive(const void *p)
{
pan_unpack(p, PRIMITIVE, primitive);
DUMP_UNPACKED(PRIMITIVE, primitive, "Primitive:\n");
/* Validate an index buffer is present if we need one. TODO: verify
* relationship between invocation_count and index_count */
if (primitive.indices) {
/* Grab the size */
unsigned size = (primitive.index_type == MALI_INDEX_TYPE_UINT32) ?
sizeof(uint32_t) : primitive.index_type;
/* Ensure we got a size, and if so, validate the index buffer
* is large enough to hold a full set of indices of the given
* size */
if (!size)
pandecode_msg("XXX: index size missing\n");
else
pandecode_validate_buffer(primitive.indices, primitive.index_count * size);
} else if (primitive.index_type)
pandecode_msg("XXX: unexpected index size\n");
}
static void
pandecode_uniform_buffers(mali_ptr pubufs, int ubufs_count, int job_no)
{
struct pandecode_mapped_memory *umem = pandecode_find_mapped_gpu_mem_containing(pubufs);
uint64_t *PANDECODE_PTR_VAR(ubufs, umem, pubufs);
for (int i = 0; i < ubufs_count; i++) {
unsigned size = (ubufs[i] & ((1 << 10) - 1)) * 16;
mali_ptr addr = (ubufs[i] >> 10) << 2;
pandecode_validate_buffer(addr, size);
char *ptr = pointer_as_memory_reference(addr);
pandecode_log("ubuf_%d[%u] = %s;\n", i, size, ptr);
free(ptr);
}
pandecode_log("\n");
}
static void
pandecode_uniforms(mali_ptr uniforms, unsigned uniform_count)
{
pandecode_validate_buffer(uniforms, uniform_count * 16);
char *ptr = pointer_as_memory_reference(uniforms);
pandecode_log("vec4 uniforms[%u] = %s;\n", uniform_count, ptr);
free(ptr);
pandecode_log("\n");
}
static const char *
shader_type_for_job(unsigned type)
{
switch (type) {
case MALI_JOB_TYPE_VERTEX: return "VERTEX";
case MALI_JOB_TYPE_TILER: return "FRAGMENT";
case MALI_JOB_TYPE_COMPUTE: return "COMPUTE";
default: return "UNKNOWN";
}
}
static unsigned shader_id = 0;
static struct midgard_disasm_stats
pandecode_shader_disassemble(mali_ptr shader_ptr, int shader_no, int type,
bool is_bifrost, unsigned gpu_id)
{
struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(shader_ptr);
uint8_t *PANDECODE_PTR_VAR(code, mem, shader_ptr);
/* Compute maximum possible size */
size_t sz = mem->length - (shader_ptr - mem->gpu_va);
/* Print some boilerplate to clearly denote the assembly (which doesn't
* obey indentation rules), and actually do the disassembly! */
pandecode_log_cont("\n\n");
struct midgard_disasm_stats stats;
if (is_bifrost) {
disassemble_bifrost(pandecode_dump_stream, code, sz, true);
/* TODO: Extend stats to Bifrost */
stats.texture_count = -128;
stats.sampler_count = -128;
stats.attribute_count = -128;
stats.varying_count = -128;
stats.uniform_count = -128;
stats.uniform_buffer_count = -128;
stats.work_count = -128;
stats.instruction_count = 0;
stats.bundle_count = 0;
stats.quadword_count = 0;
stats.helper_invocations = false;
} else {
stats = disassemble_midgard(pandecode_dump_stream,
code, sz, gpu_id,
type == MALI_JOB_TYPE_TILER ?
MESA_SHADER_FRAGMENT : MESA_SHADER_VERTEX);
}
unsigned nr_threads =
(stats.work_count <= 4) ? 4 :
(stats.work_count <= 8) ? 2 :
1;
pandecode_log_cont("shader%d - MESA_SHADER_%s shader: "
"%u inst, %u bundles, %u quadwords, "
"%u registers, %u threads, 0 loops, 0:0 spills:fills\n\n\n",
shader_id++,
shader_type_for_job(type),
stats.instruction_count, stats.bundle_count, stats.quadword_count,
stats.work_count, nr_threads);
return stats;
}
static void
pandecode_texture_payload(mali_ptr payload,
enum mali_texture_dimension dim,
enum mali_texture_layout layout,
bool manual_stride,
uint8_t levels,
uint16_t nr_samples,
uint16_t array_size,
struct pandecode_mapped_memory *tmem)
{
pandecode_log(".payload = {\n");
pandecode_indent++;
/* A bunch of bitmap pointers follow.
* We work out the correct number,
* based on the mipmap/cubemap
* properties, but dump extra
* possibilities to futureproof */
int bitmap_count = levels;
/* Miptree for each face */
if (dim == MALI_TEXTURE_DIMENSION_CUBE)
bitmap_count *= 6;
/* Array of layers */
bitmap_count *= nr_samples;
/* Array of textures */
bitmap_count *= array_size;
/* Stride for each element */
if (manual_stride)
bitmap_count *= 2;
mali_ptr *pointers_and_strides = pandecode_fetch_gpu_mem(tmem,
payload, sizeof(mali_ptr) * bitmap_count);
for (int i = 0; i < bitmap_count; ++i) {
/* How we dump depends if this is a stride or a pointer */
if (manual_stride && (i & 1)) {
/* signed 32-bit snuck in as a 64-bit pointer */
uint64_t stride_set = pointers_and_strides[i];
int32_t line_stride = stride_set;
int32_t surface_stride = stride_set >> 32;
pandecode_log("(mali_ptr) %d /* surface stride */ %d /* line stride */, \n",
surface_stride, line_stride);
} else {
char *a = pointer_as_memory_reference(pointers_and_strides[i]);
pandecode_log("%s, \n", a);
free(a);
}
}
pandecode_indent--;
pandecode_log("},\n");
}
static void
pandecode_texture(mali_ptr u,
struct pandecode_mapped_memory *tmem,
unsigned job_no, unsigned tex)
{
struct pandecode_mapped_memory *mapped_mem = pandecode_find_mapped_gpu_mem_containing(u);
const uint8_t *cl = pandecode_fetch_gpu_mem(mapped_mem, u, MALI_MIDGARD_TEXTURE_LENGTH);
pan_unpack(cl, MIDGARD_TEXTURE, temp);
DUMP_UNPACKED(MIDGARD_TEXTURE, temp, "Texture:\n")
pandecode_indent++;
unsigned nr_samples = temp.dimension == MALI_TEXTURE_DIMENSION_3D ?
1 : temp.sample_count;
pandecode_texture_payload(u + MALI_MIDGARD_TEXTURE_LENGTH,
temp.dimension, temp.texel_ordering, temp.manual_stride,
temp.levels, nr_samples, temp.array_size, mapped_mem);
pandecode_indent--;
}
static void
pandecode_bifrost_texture(
const void *cl,
unsigned job_no,
unsigned tex)
{
pan_unpack(cl, BIFROST_TEXTURE, temp);
DUMP_UNPACKED(BIFROST_TEXTURE, temp, "Texture:\n")
struct pandecode_mapped_memory *tmem = pandecode_find_mapped_gpu_mem_containing(temp.surfaces);
unsigned nr_samples = temp.dimension == MALI_TEXTURE_DIMENSION_3D ?
1 : temp.sample_count;
pandecode_indent++;
pandecode_texture_payload(temp.surfaces, temp.dimension, temp.texel_ordering,
true, temp.levels, nr_samples, temp.array_size, tmem);
pandecode_indent--;
}
static void
pandecode_blend_shader_disassemble(mali_ptr shader, int job_no, int job_type,
bool is_bifrost, unsigned gpu_id)
{
struct midgard_disasm_stats stats =
pandecode_shader_disassemble(shader, job_no, job_type, is_bifrost, gpu_id);
bool has_texture = (stats.texture_count > 0);
bool has_sampler = (stats.sampler_count > 0);
bool has_attribute = (stats.attribute_count > 0);
bool has_varying = (stats.varying_count > 0);
bool has_uniform = (stats.uniform_count > 0);
bool has_ubo = (stats.uniform_buffer_count > 0);
if (has_texture || has_sampler)
pandecode_msg("XXX: blend shader accessing textures\n");
if (has_attribute || has_varying)
pandecode_msg("XXX: blend shader accessing interstage\n");
if (has_uniform || has_ubo)
pandecode_msg("XXX: blend shader accessing uniforms\n");
}
static void
pandecode_textures(mali_ptr textures, unsigned texture_count, int job_no, bool is_bifrost)
{
struct pandecode_mapped_memory *mmem = pandecode_find_mapped_gpu_mem_containing(textures);
if (!mmem)
return;
pandecode_log("Textures %"PRIx64"_%d:\n", textures, job_no);
pandecode_indent++;
if (is_bifrost) {
const void *cl = pandecode_fetch_gpu_mem(mmem,
textures, MALI_BIFROST_TEXTURE_LENGTH *
texture_count);
for (unsigned tex = 0; tex < texture_count; ++tex) {
pandecode_bifrost_texture(cl +
MALI_BIFROST_TEXTURE_LENGTH * tex,
job_no, tex);
}
} else {
mali_ptr *PANDECODE_PTR_VAR(u, mmem, textures);
for (int tex = 0; tex < texture_count; ++tex) {
mali_ptr *PANDECODE_PTR_VAR(u, mmem, textures + tex * sizeof(mali_ptr));
char *a = pointer_as_memory_reference(*u);
pandecode_log("%s,\n", a);
free(a);
}
/* Now, finally, descend down into the texture descriptor */
for (unsigned tex = 0; tex < texture_count; ++tex) {
mali_ptr *PANDECODE_PTR_VAR(u, mmem, textures + tex * sizeof(mali_ptr));
struct pandecode_mapped_memory *tmem = pandecode_find_mapped_gpu_mem_containing(*u);
if (tmem)
pandecode_texture(*u, tmem, job_no, tex);
}
}
pandecode_indent--;
pandecode_log("\n");
}
static void
pandecode_samplers(mali_ptr samplers, unsigned sampler_count, int job_no, bool is_bifrost)
{
pandecode_log("Samplers %"PRIx64"_%d:\n", samplers, job_no);
pandecode_indent++;
for (int i = 0; i < sampler_count; ++i) {
if (is_bifrost) {
DUMP_ADDR(BIFROST_SAMPLER, samplers + (MALI_BIFROST_SAMPLER_LENGTH * i), "Sampler %d:\n", i);
} else {
DUMP_ADDR(MIDGARD_SAMPLER, samplers + (MALI_MIDGARD_SAMPLER_LENGTH * i), "Sampler %d:\n", i);
}
}
pandecode_indent--;
pandecode_log("\n");
}
static void
pandecode_vertex_tiler_postfix_pre(
const struct MALI_DRAW *p,
int job_no, enum mali_job_type job_type,
char *suffix, bool is_bifrost, unsigned gpu_id)
{
struct pandecode_mapped_memory *attr_mem;
struct pandecode_fbd fbd_info = {
/* Default for Bifrost */
.rt_count = 1
};
if (is_bifrost)
pandecode_compute_fbd(p->fbd & ~1, job_no);
else if (p->fbd & MALI_FBD_TAG_IS_MFBD)
fbd_info = pandecode_mfbd_bfr((u64) ((uintptr_t) p->fbd) & ~MALI_FBD_TAG_MASK,
job_no, false, job_type == MALI_JOB_TYPE_COMPUTE, is_bifrost, gpu_id);
else if (job_type == MALI_JOB_TYPE_COMPUTE)
pandecode_compute_fbd((u64) (uintptr_t) p->fbd, job_no);
else
fbd_info = pandecode_sfbd((u64) (uintptr_t) p->fbd, job_no, false, gpu_id);
int varying_count = 0, attribute_count = 0, uniform_count = 0, uniform_buffer_count = 0;
int texture_count = 0, sampler_count = 0;
if (p->state) {
struct pandecode_mapped_memory *smem = pandecode_find_mapped_gpu_mem_containing(p->state);
uint32_t *cl = pandecode_fetch_gpu_mem(smem, p->state, MALI_RENDERER_STATE_LENGTH);
/* Disassemble ahead-of-time to get stats. Initialize with
* stats for the missing-shader case so we get validation
* there, too */
struct midgard_disasm_stats info = {
.texture_count = 0,
.sampler_count = 0,
.attribute_count = 0,
.varying_count = 0,
.work_count = 1,
.uniform_count = -128,
.uniform_buffer_count = 0
};
pan_unpack(cl, RENDERER_STATE, state);
if (state.shader.shader & ~0xF)
info = pandecode_shader_disassemble(state.shader.shader & ~0xF, job_no, job_type, is_bifrost, gpu_id);
DUMP_UNPACKED(RENDERER_STATE, state, "State:\n");
pandecode_indent++;
/* Save for dumps */
attribute_count = state.shader.attribute_count;
varying_count = state.shader.varying_count;
texture_count = state.shader.texture_count;
sampler_count = state.shader.sampler_count;
uniform_buffer_count = state.properties.uniform_buffer_count;
if (is_bifrost)
uniform_count = state.preload.uniform_count;
else
uniform_count = state.properties.midgard.uniform_count;
if (is_bifrost)
DUMP_UNPACKED(PRELOAD, state.preload, "Preload:\n");
if (!is_bifrost) {
mali_ptr shader = state.sfbd_blend_shader & ~0xF;
if (state.multisample_misc.sfbd_blend_shader && shader)
pandecode_blend_shader_disassemble(shader, job_no, job_type, false, gpu_id);
}
pandecode_indent--;
pandecode_log("\n");
/* MRT blend fields are used whenever MFBD is used, with
* per-RT descriptors */
if (job_type == MALI_JOB_TYPE_TILER &&
(is_bifrost || p->fbd & MALI_FBD_TAG_IS_MFBD)) {
void* blend_base = ((void *) cl) + MALI_RENDERER_STATE_LENGTH;
for (unsigned i = 0; i < fbd_info.rt_count; i++) {
mali_ptr shader = 0;
if (is_bifrost)
shader = pandecode_bifrost_blend(blend_base, job_no, i,
state.shader.shader);
else
shader = pandecode_midgard_blend_mrt(blend_base, job_no, i);
if (shader & ~0xF)
pandecode_blend_shader_disassemble(shader, job_no, job_type,
is_bifrost, gpu_id);
}
}
} else
pandecode_msg("XXX: missing shader descriptor\n");
if (p->viewport) {
DUMP_ADDR(VIEWPORT, p->viewport, "Viewport:\n");
pandecode_log("\n");
}
unsigned max_attr_index = 0;
if (p->attributes)
max_attr_index = pandecode_attribute_meta(attribute_count, p->attributes, false, suffix);
if (p->attribute_buffers) {
attr_mem = pandecode_find_mapped_gpu_mem_containing(p->attribute_buffers);
pandecode_attributes(attr_mem, p->attribute_buffers, job_no, suffix, max_attr_index, false, job_type);
}
if (p->varyings) {
varying_count = pandecode_attribute_meta(varying_count, p->varyings, true, suffix);
}
if (p->varying_buffers) {
attr_mem = pandecode_find_mapped_gpu_mem_containing(p->varying_buffers);
pandecode_attributes(attr_mem, p->varying_buffers, job_no, suffix, varying_count, true, job_type);
}
if (p->uniform_buffers) {
if (uniform_buffer_count)
pandecode_uniform_buffers(p->uniform_buffers, uniform_buffer_count, job_no);
else
pandecode_msg("warn: UBOs specified but not referenced\n");
} else if (uniform_buffer_count)
pandecode_msg("XXX: UBOs referenced but not specified\n");
/* We don't want to actually dump uniforms, but we do need to validate
* that the counts we were given are sane */
if (p->push_uniforms) {
if (uniform_count)
pandecode_uniforms(p->push_uniforms, uniform_count);
else
pandecode_msg("warn: Uniforms specified but not referenced\n");
} else if (uniform_count)
pandecode_msg("XXX: Uniforms referenced but not specified\n");
if (p->textures)
pandecode_textures(p->textures, texture_count, job_no, is_bifrost);
if (p->samplers)
pandecode_samplers(p->samplers, sampler_count, job_no, is_bifrost);
}
static void
pandecode_bifrost_tiler_heap(mali_ptr gpu_va, int job_no)
{
struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
pan_unpack(PANDECODE_PTR(mem, gpu_va, void), BIFROST_TILER_HEAP, h);
DUMP_UNPACKED(BIFROST_TILER_HEAP, h, "Bifrost Tiler Heap:\n");
}
static void
pandecode_bifrost_tiler(mali_ptr gpu_va, int job_no)
{
struct pandecode_mapped_memory *mem = pandecode_find_mapped_gpu_mem_containing(gpu_va);
pan_unpack(PANDECODE_PTR(mem, gpu_va, void), BIFROST_TILER, t);
pandecode_bifrost_tiler_heap(t.heap, job_no);
DUMP_UNPACKED(BIFROST_TILER, t, "Bifrost Tiler:\n");
pandecode_indent++;
if (t.hierarchy_mask != 0xa &&
t.hierarchy_mask != 0x14 &&
t.hierarchy_mask != 0x28 &&
t.hierarchy_mask != 0x50 &&
t.hierarchy_mask != 0xa0)
pandecode_prop("XXX: Unexpected hierarchy_mask (not 0xa, 0x14, 0x28, 0x50 or 0xa0)!");
pandecode_indent--;
}
static void
pandecode_primitive_size(const void *s, bool constant)
{
pan_unpack(s, PRIMITIVE_SIZE, ps);
if (ps.size_array == 0x0)
return;
DUMP_UNPACKED(PRIMITIVE_SIZE, ps, "Primitive Size:\n")
}
static void
pandecode_vertex_compute_geometry_job(const struct MALI_JOB_HEADER *h,
const struct pandecode_mapped_memory *mem,
mali_ptr job, int job_no, bool is_bifrost,
unsigned gpu_id)
{
struct mali_compute_job_packed *PANDECODE_PTR_VAR(p, mem, job);
pan_section_unpack(p, COMPUTE_JOB, DRAW, draw);
pandecode_vertex_tiler_postfix_pre(&draw, job_no, h->type, "", is_bifrost, gpu_id);
pandecode_log("Vertex Job Payload:\n");
pandecode_indent++;
pandecode_invocation(pan_section_ptr(p, COMPUTE_JOB, INVOCATION));
DUMP_SECTION(COMPUTE_JOB, PARAMETERS, p, "Vertex Job Parameters:\n");
DUMP_UNPACKED(DRAW, draw, "Draw:\n");
pandecode_indent--;
pandecode_log("\n");
}
static void
pandecode_tiler_job_bfr(const struct MALI_JOB_HEADER *h,
const struct pandecode_mapped_memory *mem,
mali_ptr job, int job_no, unsigned gpu_id)
{
struct mali_bifrost_tiler_job_packed *PANDECODE_PTR_VAR(p, mem, job);
pan_section_unpack(p, BIFROST_TILER_JOB, DRAW, draw);
pan_section_unpack(p, BIFROST_TILER_JOB, TILER, tiler_ptr);
pandecode_vertex_tiler_postfix_pre(&draw, job_no, h->type, "", true, gpu_id);
pandecode_log("Tiler Job Payload:\n");
pandecode_indent++;
pandecode_bifrost_tiler(tiler_ptr.address, job_no);
pandecode_invocation(pan_section_ptr(p, BIFROST_TILER_JOB, INVOCATION));
pandecode_primitive(pan_section_ptr(p, BIFROST_TILER_JOB, PRIMITIVE));
/* TODO: gl_PointSize on Bifrost */
pandecode_primitive_size(pan_section_ptr(p, BIFROST_TILER_JOB, PRIMITIVE_SIZE), true);
pan_section_unpack(p, BIFROST_TILER_JOB, PADDING, padding);
DUMP_UNPACKED(DRAW, draw, "Draw:\n");
pandecode_indent--;
pandecode_log("\n");
}
static void
pandecode_tiler_job_mdg(const struct MALI_JOB_HEADER *h,
const struct pandecode_mapped_memory *mem,
mali_ptr job, int job_no, unsigned gpu_id)
{
struct mali_midgard_tiler_job_packed *PANDECODE_PTR_VAR(p, mem, job);
pan_section_unpack(p, MIDGARD_TILER_JOB, DRAW, draw);
pandecode_vertex_tiler_postfix_pre(&draw, job_no, h->type, "", false, gpu_id);
pandecode_log("Tiler Job Payload:\n");
pandecode_indent++;
pandecode_invocation(pan_section_ptr(p, MIDGARD_TILER_JOB, INVOCATION));
pandecode_primitive(pan_section_ptr(p, MIDGARD_TILER_JOB, PRIMITIVE));
DUMP_UNPACKED(DRAW, draw, "Draw:\n");
pan_section_unpack(p, MIDGARD_TILER_JOB, PRIMITIVE, primitive);
pandecode_primitive_size(pan_section_ptr(p, MIDGARD_TILER_JOB, PRIMITIVE_SIZE),
primitive.point_size_array_format == MALI_POINT_SIZE_ARRAY_FORMAT_NONE);
pandecode_indent--;
pandecode_log("\n");
}
static void
pandecode_fragment_job(const struct pandecode_mapped_memory *mem,
mali_ptr job, int job_no,
bool is_bifrost, unsigned gpu_id)
{
struct mali_fragment_job_packed *PANDECODE_PTR_VAR(p, mem, job);
pan_section_unpack(p, FRAGMENT_JOB, PAYLOAD, s);
bool is_mfbd = s.framebuffer & MALI_FBD_TAG_IS_MFBD;
if (!is_mfbd && is_bifrost)
pandecode_msg("XXX: Bifrost fragment must use MFBD\n");
struct pandecode_fbd info;
if (is_mfbd)
info = pandecode_mfbd_bfr(s.framebuffer & ~MALI_FBD_TAG_MASK, job_no,
true, false, is_bifrost, gpu_id);
else
info = pandecode_sfbd(s.framebuffer & ~MALI_FBD_TAG_MASK, job_no,
true, gpu_id);
/* Compute the tag for the tagged pointer. This contains the type of
* FBD (MFBD/SFBD), and in the case of an MFBD, information about which
* additional structures follow the MFBD header (an extra payload or
* not, as well as a count of render targets) */
unsigned expected_tag = is_mfbd ? MALI_FBD_TAG_IS_MFBD : 0;
if (is_mfbd) {
if (info.has_extra)
expected_tag |= MALI_FBD_TAG_HAS_ZS_RT;
expected_tag |= (MALI_POSITIVE(info.rt_count) << 2);
}
/* Extract tile coordinates */
unsigned min_x = s.bound_min_x << MALI_TILE_SHIFT;
unsigned min_y = s.bound_min_y << MALI_TILE_SHIFT;
unsigned max_x = s.bound_max_x << MALI_TILE_SHIFT;
unsigned max_y = s.bound_max_y << MALI_TILE_SHIFT;
/* Validate the coordinates are well-ordered */
if (min_x > max_x)
pandecode_msg("XXX: misordered X coordinates (%u > %u)\n", min_x, max_x);
if (min_y > max_y)
pandecode_msg("XXX: misordered X coordinates (%u > %u)\n", min_x, max_x);
/* Validate the coordinates fit inside the framebuffer. We use floor,
* rather than ceil, for the max coordinates, since the tile
* coordinates for something like an 800x600 framebuffer will actually
* resolve to 800x608, which would otherwise trigger a Y-overflow */
if (max_x + 1 > info.width)
pandecode_msg("XXX: tile coordinates overflow in X direction\n");
if (max_y + 1 > info.height)
pandecode_msg("XXX: tile coordinates overflow in Y direction\n");
/* After validation, we print */
DUMP_UNPACKED(FRAGMENT_JOB_PAYLOAD, s, "Fragment Job Payload:\n");
/* The FBD is a tagged pointer */
unsigned tag = (s.framebuffer & MALI_FBD_TAG_MASK);
if (tag != expected_tag)
pandecode_msg("XXX: expected FBD tag %X but got %X\n", expected_tag, tag);
pandecode_log("\n");
}
static void
pandecode_write_value_job(const struct pandecode_mapped_memory *mem,
mali_ptr job, int job_no)
{
struct mali_write_value_job_packed *PANDECODE_PTR_VAR(p, mem, job);
pan_section_unpack(p, WRITE_VALUE_JOB, PAYLOAD, u);
DUMP_SECTION(WRITE_VALUE_JOB, PAYLOAD, p, "Write Value Payload:\n");
pandecode_log("\n");
}
/* Entrypoint to start tracing. jc_gpu_va is the GPU address for the first job
* in the chain; later jobs are found by walking the chain. Bifrost is, well,
* if it's bifrost or not. GPU ID is the more finegrained ID (at some point, we
* might wish to combine this with the bifrost parameter) because some details
* are model-specific even within a particular architecture. Minimal traces
* *only* examine the job descriptors, skipping printing entirely if there is
* no faults, and only descends into the payload if there are faults. This is
* useful for looking for faults without the overhead of invasive traces. */
void
pandecode_jc(mali_ptr jc_gpu_va, bool bifrost, unsigned gpu_id, bool minimal)
{
pandecode_dump_file_open();
unsigned job_descriptor_number = 0;
mali_ptr next_job = 0;
do {
struct pandecode_mapped_memory *mem =
pandecode_find_mapped_gpu_mem_containing(jc_gpu_va);
pan_unpack(PANDECODE_PTR(mem, jc_gpu_va, struct mali_job_header_packed),
JOB_HEADER, h);
next_job = h.next;
int job_no = job_descriptor_number++;
/* If the job is good to go, skip it in minimal mode */
if (minimal && (h.exception_status == 0x0 || h.exception_status == 0x1))
continue;
DUMP_UNPACKED(JOB_HEADER, h, "Job Header:\n");
pandecode_log("\n");
switch (h.type) {
case MALI_JOB_TYPE_WRITE_VALUE:
pandecode_write_value_job(mem, jc_gpu_va, job_no);
break;
case MALI_JOB_TYPE_TILER:
if (bifrost)
pandecode_tiler_job_bfr(&h, mem, jc_gpu_va, job_no, gpu_id);
else
pandecode_tiler_job_mdg(&h, mem, jc_gpu_va, job_no, gpu_id);
break;
case MALI_JOB_TYPE_VERTEX:
case MALI_JOB_TYPE_COMPUTE:
pandecode_vertex_compute_geometry_job(&h, mem, jc_gpu_va, job_no,
bifrost, gpu_id);
break;
case MALI_JOB_TYPE_FRAGMENT:
pandecode_fragment_job(mem, jc_gpu_va, job_no, bifrost, gpu_id);
break;
default:
break;
}
} while ((jc_gpu_va = next_job));
pandecode_map_read_write();
}
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