[igt-dev] [PATCH] tests/amd_dispatch: add negative test for SDMA
Jesse Zhang
jesse.zhang at amd.com
Wed Oct 18 05:33:36 UTC 2023
Issue corrupted header or slow sdma linear copy
to trigger SDMA hang test.
V2:
- avoid generating warning,
and optimize logical code (Vitlaly)
Cc: Vitaly Prosyak <vitaly.prosyak at amd.com>
Cc: Luben Tuikov <luben.tuikov at amd.com>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Christian Koenig <christian.koenig at amd.com>
Cc: Kamil Konieczny <kamil.konieczny at linux.intel.com>
Signed-off-by: Jesse Zhang <Jesse.Zhang at amd.com>
Signed-off-by: Tim Huang <tim.huang at amd.com>
---
lib/amdgpu/amd_deadlock_helpers.c | 148 ++++++++++++++++++++++++++++++
lib/amdgpu/amd_deadlock_helpers.h | 7 ++
tests/amdgpu/amd_deadlock.c | 16 ++++
3 files changed, 171 insertions(+)
diff --git a/lib/amdgpu/amd_deadlock_helpers.c b/lib/amdgpu/amd_deadlock_helpers.c
index a6be5f02a..8f2d63772 100644
--- a/lib/amdgpu/amd_deadlock_helpers.c
+++ b/lib/amdgpu/amd_deadlock_helpers.c
@@ -248,3 +248,151 @@ bad_access_helper(amdgpu_device_handle device_handle, int reg_access, unsigned i
free_cmd_base(base_cmd);
amdgpu_cs_ctx_free(context_handle);
}
+
+void
+amdgpu_hang_sdma_helper(amdgpu_device_handle device_handle, uint8_t hang_type)
+{
+ const int sdma_write_length = 1024;
+ amdgpu_context_handle context_handle;
+ amdgpu_bo_handle ib_result_handle;
+ amdgpu_bo_handle bo1, bo2;
+ amdgpu_bo_handle resources[3];
+ amdgpu_bo_list_handle bo_list;
+ void *ib_result_cpu;
+ struct amdgpu_cs_ib_info ib_info;
+ struct amdgpu_cs_request ibs_request;
+ struct amdgpu_cs_fence fence_status;
+ uint64_t bo1_mc, bo2_mc;
+ uint64_t ib_result_mc_address;
+ volatile unsigned char *bo1_cpu, *bo2_cpu;
+ amdgpu_va_handle bo1_va_handle, bo2_va_handle;
+ amdgpu_va_handle va_handle;
+ struct drm_amdgpu_info_hw_ip hw_ip_info;
+ int j, r;
+ uint32_t expired, ib_size;
+ struct amdgpu_cmd_base *base_cmd = get_cmd_base();
+
+ r = amdgpu_query_hw_ip_info(device_handle, AMDGPU_HW_IP_DMA, 0, &hw_ip_info);
+ igt_assert_eq(r, 0);
+
+ r = amdgpu_cs_ctx_create(device_handle, &context_handle);
+ igt_assert_eq(r, 0);
+
+ if (hang_type == DMA_CORRUPTED_HEADER_HANG)
+ ib_size = 4096;
+ else
+ ib_size = 4096 * 0x20000;
+
+ r = amdgpu_bo_alloc_and_map(device_handle, ib_size, 4096,
+ AMDGPU_GEM_DOMAIN_GTT, 0,
+ &ib_result_handle, &ib_result_cpu,
+ &ib_result_mc_address, &va_handle);
+ igt_assert_eq(r, 0);
+
+ r = amdgpu_bo_alloc_and_map(device_handle,
+ sdma_write_length, 4096,
+ AMDGPU_GEM_DOMAIN_GTT,
+ 0, &bo1,
+ (void**)&bo1_cpu, &bo1_mc,
+ &bo1_va_handle);
+ igt_assert_eq(r, 0);
+
+ /* set bo1 */
+ memset((void*)bo1_cpu, 0xaa, sdma_write_length);
+
+ /* allocate UC bo2 for sDMA use */
+ r = amdgpu_bo_alloc_and_map(device_handle,
+ sdma_write_length, 4096,
+ AMDGPU_GEM_DOMAIN_GTT,
+ 0, &bo2,
+ (void**)&bo2_cpu, &bo2_mc,
+ &bo2_va_handle);
+ igt_assert_eq(r, 0);
+
+ /* clear bo2 */
+ memset((void*)bo2_cpu, 0, sdma_write_length);
+
+ resources[0] = bo1;
+ resources[1] = bo2;
+ resources[2] = ib_result_handle;
+ r = amdgpu_bo_list_create(device_handle, 3,
+ resources, NULL, &bo_list);
+
+ /* fulfill PM4: with bad copy linear header */
+ base_cmd->attach_buf(base_cmd, ib_result_cpu, ib_size);
+ if (hang_type == DMA_CORRUPTED_HEADER_HANG) {
+ base_cmd->emit(base_cmd, 0x23decd3d);
+ base_cmd->emit(base_cmd, (sdma_write_length - 1));
+ base_cmd->emit(base_cmd, 0);
+ base_cmd->emit(base_cmd, (0xffffffff & bo1_mc));
+ base_cmd->emit(base_cmd, ((0xffffffff00000000 & bo1_mc) >> 32));
+ base_cmd->emit(base_cmd, (0xffffffff & bo2_mc));
+ base_cmd->emit(base_cmd, ((0xffffffff00000000 & bo2_mc) >> 32));
+ } else {
+ for (j = 1; j < 0x20000; j++) {
+ base_cmd->emit(base_cmd, SDMA_PACKET(SDMA_OPCODE_COPY,
+ SDMA_COPY_SUB_OPCODE_LINEAR,
+ 0));
+ base_cmd->emit(base_cmd, (sdma_write_length - 1));
+ base_cmd->emit(base_cmd, 0);
+ base_cmd->emit(base_cmd, (0xffffffff & bo1_mc));
+ base_cmd->emit(base_cmd, ((0xffffffff00000000 & bo1_mc) >> 32));
+ base_cmd->emit(base_cmd, (0xffffffff & bo2_mc));
+ base_cmd->emit(base_cmd, ((0xffffffff00000000 & bo2_mc) >> 32));
+ base_cmd->emit(base_cmd, SDMA_PACKET(SDMA_OPCODE_COPY,
+ SDMA_COPY_SUB_OPCODE_LINEAR,
+ 0));
+ base_cmd->emit(base_cmd, (sdma_write_length - 1));
+ base_cmd->emit(base_cmd, 0);
+ base_cmd->emit(base_cmd, (0xffffffff & bo2_mc));
+ base_cmd->emit(base_cmd, ((0xffffffff00000000 & bo2_mc) >> 32));
+ base_cmd->emit(base_cmd, (0xffffffff & bo1_mc));
+ base_cmd->emit(base_cmd, ((0xffffffff00000000 & bo1_mc) >> 32));
+ }
+ }
+
+ /* exec command */
+ memset(&ib_info, 0, sizeof(struct amdgpu_cs_ib_info));
+ ib_info.ib_mc_address = ib_result_mc_address;
+ ib_info.size = base_cmd->cdw;
+
+ memset(&ibs_request, 0, sizeof(struct amdgpu_cs_request));
+ ibs_request.ip_type = AMDGPU_HW_IP_DMA;
+ ibs_request.ring = 0;
+ ibs_request.number_of_ibs = 1;
+ ibs_request.ibs = &ib_info;
+ ibs_request.resources = bo_list;
+ ibs_request.fence_info.handle = NULL;
+
+ r = amdgpu_cs_submit(context_handle, 0, &ibs_request, 1);
+ igt_assert_eq(r, 0);
+
+ memset(&fence_status, 0, sizeof(struct amdgpu_cs_fence));
+ fence_status.context = context_handle;
+ fence_status.ip_type = AMDGPU_HW_IP_DMA;
+ fence_status.ip_instance = 0;
+ fence_status.ring = 0;
+ fence_status.fence = ibs_request.seq_no;
+
+ r = amdgpu_cs_query_fence_status(&fence_status,
+ AMDGPU_TIMEOUT_INFINITE,
+ 0, &expired);
+ if (r != 0 && r != -ECANCELED && r != -ETIME)
+ igt_assert(0);
+
+ r = amdgpu_bo_list_destroy(bo_list);
+ igt_assert_eq(r, 0);
+
+ amdgpu_bo_unmap_and_free(ib_result_handle, va_handle,
+ ib_result_mc_address, 4096);
+
+ amdgpu_bo_unmap_and_free(bo1, bo1_va_handle, bo1_mc,
+ sdma_write_length);
+
+ amdgpu_bo_unmap_and_free(bo2, bo2_va_handle, bo2_mc,
+ sdma_write_length);
+ /* end of test */
+ r = amdgpu_cs_ctx_free(context_handle);
+ igt_assert_eq(r, 0);
+ free_cmd_base(base_cmd);
+}
diff --git a/lib/amdgpu/amd_deadlock_helpers.h b/lib/amdgpu/amd_deadlock_helpers.h
index cc8eba7f7..9c0d245a9 100644
--- a/lib/amdgpu/amd_deadlock_helpers.h
+++ b/lib/amdgpu/amd_deadlock_helpers.h
@@ -24,11 +24,18 @@
#ifndef __AMD_DEADLOCK_HELPERS_H__
#define __AMD_DEADLOCK_HELPERS_H__
+enum hang_type {
+ DMA_CORRUPTED_HEADER_HANG,
+ DMA_SLOW_LINEARCOPY_HANG
+};
+
void
amdgpu_wait_memory_helper(amdgpu_device_handle device_handle, unsigned ip_type);
void
bad_access_helper(amdgpu_device_handle device_handle, int reg_access, unsigned ip_type);
+void
+amdgpu_hang_sdma_helper(amdgpu_device_handle device_handle, uint8_t hang_type);
#endif
diff --git a/tests/amdgpu/amd_deadlock.c b/tests/amdgpu/amd_deadlock.c
index 6147b7636..dc7ec4366 100644
--- a/tests/amdgpu/amd_deadlock.c
+++ b/tests/amdgpu/amd_deadlock.c
@@ -77,6 +77,22 @@ igt_main
}
}
+ igt_describe("Test-GPU-reset-by-sdma-corrupted-header-with-jobs");
+ igt_subtest_with_dynamic("amdgpu-deadlock-sdma-corrupted-header-test") {
+ if (arr_cap[AMD_IP_DMA]) {
+ igt_dynamic_f("amdgpu-deadlock-sdma-corrupted-header-test")
+ amdgpu_hang_sdma_helper(device, DMA_CORRUPTED_HEADER_HANG);
+ }
+ }
+
+ igt_describe("Test-GPU-reset-by-sdma-slow-linear-copy-with-jobs");
+ igt_subtest_with_dynamic("amdgpu-deadlock-sdma-slow-linear-copy") {
+ if (arr_cap[AMD_IP_DMA]) {
+ igt_dynamic_f("amdgpu-deadlock-sdma-slow-linear-copy")
+ amdgpu_hang_sdma_helper(device, DMA_SLOW_LINEARCOPY_HANG);
+ }
+ }
+
igt_fixture {
amdgpu_device_deinitialize(device);
drm_close_driver(fd);
--
2.25.1
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