radv: dump GPU info into the hang report
[mesa.git] / src / amd / vulkan / radv_debug.c
index 42296745543704d90bc32bebbe769ecc9d40fb97..2d1f5c2d7d2f2d16897431b071b73b1d9bf10ca6 100644 (file)
@@ -36,6 +36,7 @@
 #include "radv_shader.h"
 
 #define TRACE_BO_SIZE 4096
+#define TMA_BO_SIZE 4096
 
 #define COLOR_RESET    "\033[0m"
 #define COLOR_RED      "\033[31m"
@@ -47,8 +48,8 @@
  *
  * [0]: primary trace ID
  * [1]: secondary trace ID
- * [2-3]: 64-bit GFX pipeline pointer
- * [4-5]: 64-bit COMPUTE pipeline pointer
+ * [2-3]: 64-bit GFX ring pipeline pointer
+ * [4-5]: 64-bit COMPUTE ring pipeline pointer
  * [6-7]: 64-bit descriptor set #0 pointer
  * ...
  * [68-69]: 64-bit descriptor set #31 pointer
@@ -62,7 +63,8 @@ radv_init_trace(struct radv_device *device)
        device->trace_bo = ws->buffer_create(ws, TRACE_BO_SIZE, 8,
                                             RADEON_DOMAIN_VRAM,
                                             RADEON_FLAG_CPU_ACCESS|
-                                            RADEON_FLAG_NO_INTERPROCESS_SHARING,
+                                            RADEON_FLAG_NO_INTERPROCESS_SHARING |
+                                            RADEON_FLAG_ZERO_VRAM,
                                             RADV_BO_PRIORITY_UPLOAD_BUFFER);
        if (!device->trace_bo)
                return false;
@@ -71,8 +73,6 @@ radv_init_trace(struct radv_device *device)
        if (!device->trace_id_ptr)
                return false;
 
-       memset(device->trace_id_ptr, 0, TRACE_BO_SIZE);
-
        ac_vm_fault_occured(device->physical_device->rad_info.chip_class,
                            &device->dmesg_timestamp, NULL);
 
@@ -145,37 +145,6 @@ radv_dump_debug_registers(struct radv_device *device, FILE *f)
        fprintf(f, "\n");
 }
 
-static const char *
-radv_get_descriptor_name(enum VkDescriptorType type)
-{
-       switch (type) {
-       case VK_DESCRIPTOR_TYPE_SAMPLER:
-               return "SAMPLER";
-       case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:
-               return "COMBINED_IMAGE_SAMPLER";
-       case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:
-               return "SAMPLED_IMAGE";
-       case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:
-               return "STORAGE_IMAGE";
-       case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:
-               return "UNIFORM_TEXEL_BUFFER";
-       case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:
-               return "STORAGE_TEXEL_BUFFER";
-       case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
-               return "UNIFORM_BUFFER";
-       case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
-               return "STORAGE_BUFFER";
-       case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:
-               return "UNIFORM_BUFFER_DYNAMIC";
-       case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:
-               return "STORAGE_BUFFER_DYNAMIC";
-       case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:
-               return "INPUT_ATTACHMENT";
-       default:
-               return "UNKNOWN";
-       }
-}
-
 static void
 radv_dump_buffer_descriptor(enum chip_class chip_class, const uint32_t *desc,
                            FILE *f)
@@ -224,9 +193,10 @@ radv_dump_combined_image_sampler_descriptor(enum chip_class chip_class,
 }
 
 static void
-radv_dump_descriptor_set(enum chip_class chip_class,
+radv_dump_descriptor_set(struct radv_device *device,
                         struct radv_descriptor_set *set, unsigned id, FILE *f)
 {
+       enum chip_class chip_class = device->physical_device->rad_info.chip_class;
        const struct radv_descriptor_set_layout *layout;
        int i;
 
@@ -234,52 +204,10 @@ radv_dump_descriptor_set(enum chip_class chip_class,
                return;
        layout = set->layout;
 
-       fprintf(f, "** descriptor set (%d) **\n", id);
-       fprintf(f, "va: 0x%"PRIx64"\n", set->va);
-       fprintf(f, "size: %d\n", set->size);
-       fprintf(f, "mapped_ptr:\n");
-
-       for (i = 0; i < set->size / 4; i++) {
-               fprintf(f, "\t[0x%x] = 0x%08x\n", i, set->mapped_ptr[i]);
-       }
-       fprintf(f, "\n");
-
-       fprintf(f, "\t*** layout ***\n");
-       fprintf(f, "\tbinding_count: %d\n", layout->binding_count);
-       fprintf(f, "\tsize: %d\n", layout->size);
-       fprintf(f, "\tshader_stages: %x\n", layout->shader_stages);
-       fprintf(f, "\tdynamic_shader_stages: %x\n",
-               layout->dynamic_shader_stages);
-       fprintf(f, "\tbuffer_count: %d\n", layout->buffer_count);
-       fprintf(f, "\tdynamic_offset_count: %d\n",
-               layout->dynamic_offset_count);
-       fprintf(f, "\n");
-
        for (i = 0; i < set->layout->binding_count; i++) {
                uint32_t *desc =
                        set->mapped_ptr + layout->binding[i].offset / 4;
 
-               fprintf(f, "\t\t**** binding layout (%d) ****\n", i);
-               fprintf(f, "\t\ttype: %s\n",
-                       radv_get_descriptor_name(layout->binding[i].type));
-               fprintf(f, "\t\tarray_size: %d\n",
-                       layout->binding[i].array_size);
-               fprintf(f, "\t\toffset: %d\n",
-                       layout->binding[i].offset);
-               fprintf(f, "\t\tbuffer_offset: %d\n",
-                       layout->binding[i].buffer_offset);
-               fprintf(f, "\t\tdynamic_offset_offset: %d\n",
-                       layout->binding[i].dynamic_offset_offset);
-               fprintf(f, "\t\tdynamic_offset_count: %d\n",
-                       layout->binding[i].dynamic_offset_count);
-               fprintf(f, "\t\tsize: %d\n",
-                       layout->binding[i].size);
-               fprintf(f, "\t\timmutable_samplers_offset: %d\n",
-                       layout->binding[i].immutable_samplers_offset);
-               fprintf(f, "\t\timmutable_samplers_equal: %d\n",
-                       layout->binding[i].immutable_samplers_equal);
-               fprintf(f, "\n");
-
                switch (layout->binding[i].type) {
                case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:
                case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:
@@ -312,19 +240,17 @@ radv_dump_descriptor_set(enum chip_class chip_class,
 }
 
 static void
-radv_dump_descriptors(struct radv_pipeline *pipeline, FILE *f)
+radv_dump_descriptors(struct radv_device *device, FILE *f)
 {
-       struct radv_device *device = pipeline->device;
-       enum chip_class chip_class = device->physical_device->rad_info.chip_class;
        uint64_t *ptr = (uint64_t *)device->trace_id_ptr;
        int i;
 
-       fprintf(f, "List of descriptors:\n");
+       fprintf(f, "Descriptors:\n");
        for (i = 0; i < MAX_SETS; i++) {
                struct radv_descriptor_set *set =
-                       (struct radv_descriptor_set *)ptr[i + 3];
+                       *(struct radv_descriptor_set **)(ptr + i + 3);
 
-               radv_dump_descriptor_set(chip_class, set, i, f);
+               radv_dump_descriptor_set(device, set, i, f);
        }
 }
 
@@ -348,6 +274,12 @@ static void si_add_split_disasm(const char *disasm,
                struct radv_shader_inst *inst = &instructions[*num];
                unsigned len = next - disasm;
 
+               if (!memchr(disasm, ';', len)) {
+                       /* Ignore everything that is not an instruction. */
+                       disasm = next + 1;
+                       continue;
+               }
+
                assert(len < ARRAY_SIZE(inst->text));
                memcpy(inst->text, disasm, len);
                inst->text[len] = 0;
@@ -406,7 +338,7 @@ radv_dump_annotated_shader(struct radv_shader_variant *shader,
                            start_addr, &num_inst, instructions);
 
        fprintf(f, COLOR_YELLOW "%s - annotated disassembly:" COLOR_RESET "\n",
-               radv_get_shader_name(shader, stage));
+               radv_get_shader_name(&shader->info, stage));
 
        /* Print instructions with annotations. */
        for (i = 0; i < num_inst; i++) {
@@ -490,7 +422,7 @@ radv_dump_shader(struct radv_pipeline *pipeline,
        if (!shader)
                return;
 
-       fprintf(f, "%s:\n\n", radv_get_shader_name(shader, stage));
+       fprintf(f, "%s:\n\n", radv_get_shader_name(&shader->info, stage));
 
        if (shader->spirv) {
                unsigned char sha1[21];
@@ -503,15 +435,16 @@ radv_dump_shader(struct radv_pipeline *pipeline,
                radv_print_spirv(shader->spirv, shader->spirv_size, f);
        }
 
-       if (shader->nir) {
-               fprintf(f, "NIR:\n");
-               nir_print_shader(shader->nir, f);
+       if (shader->nir_string) {
+               fprintf(f, "NIR:\n%s\n", shader->nir_string);
        }
 
-       fprintf(f, "LLVM IR:\n%s\n", shader->llvm_ir_string);
+       fprintf(f, "%s IR:\n%s\n",
+               pipeline->device->physical_device->use_llvm ? "LLVM" : "ACO",
+               shader->ir_string);
        fprintf(f, "DISASM:\n%s\n", shader->disasm_string);
 
-       radv_shader_dump_stats(pipeline->device, shader, stage, f);
+       radv_dump_shader_stats(pipeline->device, pipeline, stage, f);
 }
 
 static void
@@ -526,57 +459,29 @@ radv_dump_shaders(struct radv_pipeline *pipeline,
        }
 }
 
-static void
-radv_dump_pipeline_state(struct radv_pipeline *pipeline,
-                        VkShaderStageFlagBits active_stages, FILE *f)
-{
-       radv_dump_shaders(pipeline, active_stages, f);
-       radv_dump_annotated_shaders(pipeline, active_stages, f);
-       radv_dump_descriptors(pipeline, f);
-}
-
-static void
-radv_dump_graphics_state(struct radv_pipeline *graphics_pipeline,
-                        struct radv_pipeline *compute_pipeline, FILE *f)
-{
-       VkShaderStageFlagBits active_stages;
-
-       if (graphics_pipeline) {
-               active_stages = graphics_pipeline->active_stages;
-               radv_dump_pipeline_state(graphics_pipeline, active_stages, f);
-       }
-
-       if (compute_pipeline) {
-               active_stages = VK_SHADER_STAGE_COMPUTE_BIT;
-               radv_dump_pipeline_state(compute_pipeline, active_stages, f);
-       }
-}
-
-static void
-radv_dump_compute_state(struct radv_pipeline *compute_pipeline, FILE *f)
-{
-       VkShaderStageFlagBits active_stages = VK_SHADER_STAGE_COMPUTE_BIT;
-
-       if (!compute_pipeline)
-               return;
-
-       radv_dump_pipeline_state(compute_pipeline, active_stages, f);
-}
-
 static struct radv_pipeline *
-radv_get_saved_graphics_pipeline(struct radv_device *device)
+radv_get_saved_pipeline(struct radv_device *device, enum ring_type ring)
 {
        uint64_t *ptr = (uint64_t *)device->trace_id_ptr;
+       int offset = ring == RING_GFX ? 1 : 2;
 
-       return (struct radv_pipeline *)ptr[1];
+       return *(struct radv_pipeline **)(ptr + offset);
 }
 
-static struct radv_pipeline *
-radv_get_saved_compute_pipeline(struct radv_device *device)
+static void
+radv_dump_queue_state(struct radv_queue *queue, FILE *f)
 {
-       uint64_t *ptr = (uint64_t *)device->trace_id_ptr;
+       enum ring_type ring = radv_queue_family_to_ring(queue->queue_family_index);
+       struct radv_pipeline *pipeline;
 
-       return (struct radv_pipeline *)ptr[2];
+       fprintf(f, "RING_%s:\n", ring == RING_GFX ? "GFX" : "COMPUTE");
+
+       pipeline = radv_get_saved_pipeline(queue->device, ring);
+       if (pipeline) {
+               radv_dump_shaders(pipeline, pipeline->active_stages, f);
+               radv_dump_annotated_shaders(pipeline, pipeline->active_stages, f);
+               radv_dump_descriptors(queue->device, f);
+       }
 }
 
 static void
@@ -639,8 +544,7 @@ radv_dump_device_name(struct radv_device *device, FILE *f)
                snprintf(kernel_version, sizeof(kernel_version),
                         " / %s", uname_data.release);
 
-       fprintf(f, "Device name: %s (%s DRM %i.%i.%i%s, LLVM "
-               MESA_LLVM_VERSION_STRING ")\n\n",
+       fprintf(f, "Device name: %s (%s / DRM %i.%i.%i%s)\n\n",
                chip_name, device->physical_device->name,
                info->drm_major, info->drm_minor, info->drm_patchlevel,
                kernel_version);
@@ -660,7 +564,6 @@ radv_gpu_hang_occured(struct radv_queue *queue, enum ring_type ring)
 void
 radv_check_gpu_hangs(struct radv_queue *queue, struct radeon_cmdbuf *cs)
 {
-       struct radv_pipeline *graphics_pipeline, *compute_pipeline;
        struct radv_device *device = queue->device;
        enum ring_type ring;
        uint64_t addr;
@@ -675,11 +578,11 @@ radv_check_gpu_hangs(struct radv_queue *queue, struct radeon_cmdbuf *cs)
        if (!hang_occurred && !vm_fault_occurred)
                return;
 
-       graphics_pipeline = radv_get_saved_graphics_pipeline(device);
-       compute_pipeline = radv_get_saved_compute_pipeline(device);
+       radv_dump_trace(queue->device, cs);
 
        fprintf(stderr, "GPU hang report:\n\n");
        radv_dump_device_name(device, stderr);
+       ac_print_gpu_info(&device->physical_device->rad_info);
 
        radv_dump_enabled_options(device, stderr);
        radv_dump_dmesg(stderr);
@@ -690,26 +593,13 @@ radv_check_gpu_hangs(struct radv_queue *queue, struct radeon_cmdbuf *cs)
        }
 
        radv_dump_debug_registers(device, stderr);
+       radv_dump_queue_state(queue, stderr);
 
-       switch (ring) {
-       case RING_GFX:
-               radv_dump_graphics_state(graphics_pipeline, compute_pipeline,
-                                        stderr);
-               break;
-       case RING_COMPUTE:
-               radv_dump_compute_state(compute_pipeline, stderr);
-               break;
-       default:
-               assert(0);
-               break;
-       }
-
-       radv_dump_trace(queue->device, cs);
        abort();
 }
 
 void
-radv_print_spirv(uint32_t *data, uint32_t size, FILE *fp)
+radv_print_spirv(const char *data, uint32_t size, FILE *fp)
 {
        char path[] = "/tmp/fileXXXXXX";
        char line[2048], command[128];
@@ -738,3 +628,198 @@ fail:
        close(fd);
        unlink(path);
 }
+
+bool
+radv_trap_handler_init(struct radv_device *device)
+{
+       struct radeon_winsys *ws = device->ws;
+
+       /* Create the trap handler shader and upload it like other shaders. */
+       device->trap_handler_shader = radv_create_trap_handler_shader(device);
+       if (!device->trap_handler_shader) {
+               fprintf(stderr, "radv: failed to create the trap handler shader.\n");
+               return false;
+       }
+
+       device->tma_bo = ws->buffer_create(ws, TMA_BO_SIZE, 256,
+                                          RADEON_DOMAIN_VRAM,
+                                          RADEON_FLAG_CPU_ACCESS |
+                                          RADEON_FLAG_NO_INTERPROCESS_SHARING |
+                                          RADEON_FLAG_ZERO_VRAM |
+                                          RADEON_FLAG_32BIT,
+                                          RADV_BO_PRIORITY_SCRATCH);
+       if (!device->tma_bo)
+               return false;
+
+       device->tma_ptr = ws->buffer_map(device->tma_bo);
+       if (!device->tma_ptr)
+               return false;
+
+       /* Upload a buffer descriptor to store various info from the trap. */
+       uint64_t tma_va = radv_buffer_get_va(device->tma_bo) + 16;
+       uint32_t desc[4];
+
+       desc[0] = tma_va;
+       desc[1] = S_008F04_BASE_ADDRESS_HI(tma_va >> 32);
+       desc[2] = TMA_BO_SIZE;
+       desc[3] = S_008F0C_DST_SEL_X(V_008F0C_SQ_SEL_X) |
+                 S_008F0C_DST_SEL_Y(V_008F0C_SQ_SEL_Y) |
+                 S_008F0C_DST_SEL_Z(V_008F0C_SQ_SEL_Z) |
+                 S_008F0C_DST_SEL_W(V_008F0C_SQ_SEL_W) |
+                 S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_32);
+
+       memcpy(device->tma_ptr, desc, sizeof(desc));
+
+       return true;
+}
+
+void
+radv_trap_handler_finish(struct radv_device *device)
+{
+       struct radeon_winsys *ws = device->ws;
+
+       if (unlikely(device->trap_handler_shader))
+               radv_shader_variant_destroy(device, device->trap_handler_shader);
+
+       if (unlikely(device->tma_bo))
+               ws->buffer_destroy(device->tma_bo);
+}
+
+static struct radv_shader_variant *
+radv_get_faulty_shader(struct radv_device *device, uint64_t faulty_pc)
+{
+       struct radv_shader_variant *shader = NULL;
+
+       mtx_lock(&device->shader_slab_mutex);
+       list_for_each_entry(struct radv_shader_slab, slab, &device->shader_slabs, slabs) {
+               list_for_each_entry(struct radv_shader_variant, s, &slab->shaders, slab_list) {
+                       uint64_t offset = align_u64(s->bo_offset + s->code_size, 256);
+                       uint64_t va = radv_buffer_get_va(s->bo);
+
+                       if (faulty_pc >= va + s->bo_offset && faulty_pc < va + offset) {
+                               mtx_unlock(&device->shader_slab_mutex);
+                               return s;
+                       }
+               }
+       }
+       mtx_unlock(&device->shader_slab_mutex);
+
+       return shader;
+}
+
+static void
+radv_dump_faulty_shader(struct radv_device *device, uint64_t faulty_pc)
+{
+       struct radv_shader_variant *shader;
+       uint64_t start_addr, end_addr;
+       uint32_t instr_offset;
+
+       shader = radv_get_faulty_shader(device, faulty_pc);
+       if (!shader)
+               return;
+
+       start_addr = radv_buffer_get_va(shader->bo) + shader->bo_offset;
+       end_addr = start_addr + shader->code_size;
+       instr_offset = faulty_pc - start_addr;
+
+       fprintf(stderr, "Faulty shader found "
+                       "VA=[0x%"PRIx64"-0x%"PRIx64"], instr_offset=%d\n",
+               start_addr, end_addr, instr_offset);
+
+       /* Get the list of instructions.
+        * Buffer size / 4 is the upper bound of the instruction count.
+        */
+       unsigned num_inst = 0;
+       struct radv_shader_inst *instructions =
+               calloc(shader->code_size / 4, sizeof(struct radv_shader_inst));
+
+       /* Split the disassembly string into instructions. */
+       si_add_split_disasm(shader->disasm_string, start_addr, &num_inst, instructions);
+
+       /* Print instructions with annotations. */
+       for (unsigned i = 0; i < num_inst; i++) {
+               struct radv_shader_inst *inst = &instructions[i];
+
+               if (start_addr + inst->offset == faulty_pc) {
+                       fprintf(stderr, "\n!!! Faulty instruction below !!!\n");
+                       fprintf(stderr, "%s\n", inst->text);
+                       fprintf(stderr, "\n");
+               } else {
+                       fprintf(stderr, "%s\n", inst->text);
+               }
+       }
+
+       free(instructions);
+}
+
+struct radv_sq_hw_reg {
+       uint32_t status;
+       uint32_t trap_sts;
+       uint32_t hw_id;
+       uint32_t ib_sts;
+};
+
+static void
+radv_dump_sq_hw_regs(struct radv_device *device)
+{
+       struct radv_sq_hw_reg *regs = (struct radv_sq_hw_reg *)&device->tma_ptr[6];
+
+       fprintf(stderr, "\nHardware registers:\n");
+       ac_dump_reg(stderr, device->physical_device->rad_info.chip_class,
+                   R_000002_SQ_HW_REG_STATUS, regs->status, ~0);
+       ac_dump_reg(stderr, device->physical_device->rad_info.chip_class,
+                   R_000003_SQ_HW_REG_TRAP_STS, regs->trap_sts, ~0);
+       ac_dump_reg(stderr, device->physical_device->rad_info.chip_class,
+                   R_000004_SQ_HW_REG_HW_ID, regs->hw_id, ~0);
+       ac_dump_reg(stderr, device->physical_device->rad_info.chip_class,
+                   R_000007_SQ_HW_REG_IB_STS, regs->ib_sts, ~0);
+       fprintf(stderr, "\n\n");
+}
+
+void
+radv_check_trap_handler(struct radv_queue *queue)
+{
+       enum ring_type ring = radv_queue_family_to_ring(queue->queue_family_index);
+       struct radv_device *device = queue->device;
+       struct radeon_winsys *ws = device->ws;
+
+       /* Wait for the context to be idle in a finite time. */
+       ws->ctx_wait_idle(queue->hw_ctx, ring, queue->queue_idx);
+
+       /* Try to detect if the trap handler has been reached by the hw by
+        * looking at ttmp0 which should be non-zero if a shader exception
+        * happened.
+        */
+       if (!device->tma_ptr[4])
+               return;
+
+#if 0
+       fprintf(stderr, "tma_ptr:\n");
+       for (unsigned i = 0; i < 10; i++)
+               fprintf(stderr, "tma_ptr[%d]=0x%x\n", i, device->tma_ptr[i]);
+#endif
+
+       radv_dump_sq_hw_regs(device);
+
+       uint32_t ttmp0 = device->tma_ptr[4];
+       uint32_t ttmp1 = device->tma_ptr[5];
+
+       /* According to the ISA docs, 3.10 Trap and Exception Registers:
+        *
+        * "{ttmp1, ttmp0} = {3'h0, pc_rewind[3:0], HT[0], trapID[7:0], PC[47:0]}"
+        *
+        * "When the trap handler is entered, the PC of the faulting
+        *  instruction is: (PC - PC_rewind * 4)."
+        * */
+       uint8_t trap_id = (ttmp1 >> 16) & 0xff;
+       uint8_t ht = (ttmp1 >> 24) & 0x1;
+       uint8_t pc_rewind = (ttmp1 >> 25) & 0xf;
+       uint64_t pc = (ttmp0 | ((ttmp1 & 0x0000ffffull) << 32)) - (pc_rewind * 4);
+
+       fprintf(stderr, "PC=0x%"PRIx64", trapID=%d, HT=%d, PC_rewind=%d\n",
+               pc, trap_id, ht, pc_rewind);
+
+       radv_dump_faulty_shader(device, pc);
+
+       abort();
+}