From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Tue, 5 Sep 2017 19:07:57 +0000 (+0200)
Subject: radv: dump the active shaders when a hang occured
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d28cbf6f9efa17c762375b91130c73c6cf3db2db;p=mesa.git

radv: dump the active shaders when a hang occured

Only the disassembly is currently dumped.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
---

diff --git a/src/amd/vulkan/radv_debug.c b/src/amd/vulkan/radv_debug.c
index 46679aff7ed..45dbe2b08dc 100644
--- a/src/amd/vulkan/radv_debug.c
+++ b/src/amd/vulkan/radv_debug.c
@@ -81,13 +81,77 @@ radv_dump_trace(struct radv_device *device, struct radeon_winsys_cs *cs)
 	fclose(f);
 }
 
+static void
+radv_dump_shader(struct radv_shader_variant *shader, gl_shader_stage stage,
+		 FILE *f)
+{
+	if (!shader)
+		return;
+
+	fprintf(f, "%s:\n%s\n\n", radv_get_shader_name(shader, stage),
+		shader->disasm_string);
+}
+
+static void
+radv_dump_shaders(struct radv_pipeline *pipeline,
+		  struct radv_shader_variant *compute_shader, FILE *f)
+{
+	unsigned mask;
+
+	/* Dump active graphics shaders. */
+	mask = pipeline->active_stages;
+	while (mask) {
+		int stage = u_bit_scan(&mask);
+
+		radv_dump_shader(pipeline->shaders[stage], stage, f);
+	}
+
+	radv_dump_shader(compute_shader, MESA_SHADER_COMPUTE, f);
+}
+
+static void
+radv_dump_graphics_state(struct radv_pipeline *graphics_pipeline,
+			 struct radv_pipeline *compute_pipeline, FILE *f)
+{
+	struct radv_shader_variant *compute_shader =
+		compute_pipeline ? compute_pipeline->shaders[MESA_SHADER_COMPUTE] : NULL;
+
+	if (!graphics_pipeline)
+		return;
+
+	radv_dump_shaders(graphics_pipeline, compute_shader, f);
+}
+
+static void
+radv_dump_compute_state(struct radv_pipeline *compute_pipeline, FILE *f)
+{
+	if (!compute_pipeline)
+		return;
+
+	radv_dump_shaders(compute_pipeline,
+			  compute_pipeline->shaders[MESA_SHADER_COMPUTE], f);
+}
+
+static struct radv_pipeline *
+radv_get_saved_graphics_pipeline(struct radv_device *device)
+{
+	uint64_t *ptr = (uint64_t *)device->trace_id_ptr;
+
+	return (struct radv_pipeline *)ptr[1];
+}
+
+static struct radv_pipeline *
+radv_get_saved_compute_pipeline(struct radv_device *device)
+{
+	uint64_t *ptr = (uint64_t *)device->trace_id_ptr;
+
+	return (struct radv_pipeline *)ptr[2];
+}
+
 static bool
-radv_gpu_hang_occured(struct radv_queue *queue)
+radv_gpu_hang_occured(struct radv_queue *queue, enum ring_type ring)
 {
 	struct radeon_winsys *ws = queue->device->ws;
-	enum ring_type ring;
-
-	ring = radv_queue_family_to_ring(queue->queue_family_index);
 
 	if (!ws->ctx_wait_idle(queue->hw_ctx, ring, queue->queue_idx))
 		return true;
@@ -98,10 +162,14 @@ radv_gpu_hang_occured(struct radv_queue *queue)
 void
 radv_check_gpu_hangs(struct radv_queue *queue, struct radeon_winsys_cs *cs)
 {
+	struct radv_pipeline *graphics_pipeline, *compute_pipeline;
 	struct radv_device *device = queue->device;
+	enum ring_type ring;
 	uint64_t addr;
 
-	bool hang_occurred = radv_gpu_hang_occured(queue);
+	ring = radv_queue_family_to_ring(queue->queue_family_index);
+
+	bool hang_occurred = radv_gpu_hang_occured(queue, ring);
 	bool vm_fault_occurred = false;
 	if (queue->device->instance->debug_flags & RADV_DEBUG_VM_FAULTS)
 		vm_fault_occurred = ac_vm_fault_occured(device->physical_device->rad_info.chip_class,
@@ -109,11 +177,27 @@ radv_check_gpu_hangs(struct radv_queue *queue, struct radeon_winsys_cs *cs)
 	if (!hang_occurred && !vm_fault_occurred)
 		return;
 
+	graphics_pipeline = radv_get_saved_graphics_pipeline(device);
+	compute_pipeline = radv_get_saved_compute_pipeline(device);
+
 	if (vm_fault_occurred) {
 		fprintf(stderr, "VM fault report.\n\n");
 		fprintf(stderr, "Failing VM page: 0x%08"PRIx64"\n\n", addr);
 	}
 
+	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();
 }