[Mesa-dev] [PATCH] radv: fix trace dumping for !use_ib_bos

[Grazvydas Ignotas]

Fixes trace dumping crash for SI or when RADV_DEBUG=noibs is set.

Fixes: 97dfff5410 "radv: Dump command buffer on hang."
Signed-off-by: Grazvydas Ignotas <notasas at gmail.com>
---
Not sure if chained buffer dumping can be done for !use_ib_bos,
returning NULL in _get_cpu_addr() just skips that.

 src/amd/vulkan/winsys/amdgpu/radv_amdgpu_cs.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_cs.c b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_cs.c
index 7b74970..ffc7566 100644
--- a/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_cs.c
+++ b/src/amd/vulkan/winsys/amdgpu/radv_amdgpu_cs.c
@@ -950,10 +950,13 @@ static int radv_amdgpu_winsys_cs_submit(struct radeon_winsys_ctx *_ctx,
 
 static void *radv_amdgpu_winsys_get_cpu_addr(void *_cs, uint64_t addr)
 {
 	struct radv_amdgpu_cs *cs = (struct radv_amdgpu_cs *)_cs;
 	void *ret = NULL;
+
+	if (!cs->ib_buffer)
+		return NULL;
 	for (unsigned i = 0; i <= cs->num_old_ib_buffers; ++i) {
 		struct radv_amdgpu_winsys_bo *bo;
 
 		bo = (struct radv_amdgpu_winsys_bo*)
 		       (i == cs->num_old_ib_buffers ? cs->ib_buffer : cs->old_ib_buffers[i]);
@@ -968,14 +971,19 @@ static void *radv_amdgpu_winsys_get_cpu_addr(void *_cs, uint64_t addr)
 static void radv_amdgpu_winsys_cs_dump(struct radeon_winsys_cs *_cs,
                                        FILE* file,
                                        uint32_t trace_id)
 {
 	struct radv_amdgpu_cs *cs = (struct radv_amdgpu_cs *)_cs;
+	void *ib = cs->base.buf;
+	int num_dw = cs->base.cdw;
 
-	ac_parse_ib(file,
-		    radv_amdgpu_winsys_get_cpu_addr(cs, cs->ib.ib_mc_address),
-		    cs->ib.size, trace_id,  "main IB", cs->ws->info.chip_class,
+	if (cs->ws->use_ib_bos) {
+		ib = radv_amdgpu_winsys_get_cpu_addr(cs, cs->ib.ib_mc_address);
+		num_dw = cs->ib.size;
+	}
+	assert(ib);
+	ac_parse_ib(file, ib, num_dw, trace_id, "main IB", cs->ws->info.chip_class,
 		    radv_amdgpu_winsys_get_cpu_addr, cs);
 }
 
 static struct radeon_winsys_ctx *radv_amdgpu_ctx_create(struct radeon_winsys *_ws)
 {
-- 
2.7.4