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Commit 4f0955fc authored by Huang Rui's avatar Huang Rui Committed by Alex Deucher
Browse files

drm/amdgpu: export test ib debugfs interface 



As Christian and David's suggestion, submit the test ib ring debug interfaces.
It's useful for debugging with the command submission without VM case.

Signed-off-by: default avatarHuang Rui <ray.huang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 17d176a5

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

+54 −0
Original line number Original line Diff line number Diff line
@@ -61,6 +61,7 @@ MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin"); 




static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev);

static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev);

static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev);

static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev);

static int amdgpu_debugfs_test_ib_ring_init(struct amdgpu_device *adev);





static const char *amdgpu_asic_name[] = {

static const char *amdgpu_asic_name[] = {

	"TAHITI",

	"TAHITI",
@@ -2227,6 +2228,10 @@ int amdgpu_device_init(struct amdgpu_device *adev, 
	if (r)

	if (r)

		DRM_ERROR("registering register debugfs failed (%d).\n", r);

		DRM_ERROR("registering register debugfs failed (%d).\n", r);





	r = amdgpu_debugfs_test_ib_ring_init(adev);

	if (r)

		DRM_ERROR("registering register test ib ring debugfs failed (%d).\n", r);



	r = amdgpu_debugfs_firmware_init(adev);

	r = amdgpu_debugfs_firmware_init(adev);

	if (r)

	if (r)

		DRM_ERROR("registering firmware debugfs failed (%d).\n", r);

		DRM_ERROR("registering firmware debugfs failed (%d).\n", r);
@@ -3743,11 +3748,60 @@ static void amdgpu_debugfs_regs_cleanup(struct amdgpu_device *adev) 
	}

	}

}

}





static int amdgpu_debugfs_test_ib(struct seq_file *m, void *data)

{

	struct drm_info_node *node = (struct drm_info_node *) m->private;

	struct drm_device *dev = node->minor->dev;

	struct amdgpu_device *adev = dev->dev_private;

	int r = 0, i;



	/* hold on the scheduler */

	for (i = 0; i < AMDGPU_MAX_RINGS; i++) {

		struct amdgpu_ring *ring = adev->rings[i];



		if (!ring || !ring->sched.thread)

			continue;

		kthread_park(ring->sched.thread);

	}



	seq_printf(m, "run ib test:\n");

	r = amdgpu_ib_ring_tests(adev);

	if (r)

		seq_printf(m, "ib ring tests failed (%d).\n", r);

	else

		seq_printf(m, "ib ring tests passed.\n");



	/* go on the scheduler */

	for (i = 0; i < AMDGPU_MAX_RINGS; i++) {

		struct amdgpu_ring *ring = adev->rings[i];



		if (!ring || !ring->sched.thread)

			continue;

		kthread_unpark(ring->sched.thread);

	}



	return 0;

}



static const struct drm_info_list amdgpu_debugfs_test_ib_ring_list[] = {

	{"amdgpu_test_ib", &amdgpu_debugfs_test_ib}

};



static int amdgpu_debugfs_test_ib_ring_init(struct amdgpu_device *adev)

{

	return amdgpu_debugfs_add_files(adev,

					amdgpu_debugfs_test_ib_ring_list, 1);

}



int amdgpu_debugfs_init(struct drm_minor *minor)

int amdgpu_debugfs_init(struct drm_minor *minor)

{

{

	return 0;

	return 0;

}

}

#else

#else

static int amdgpu_debugfs_test_ib_init(struct amdgpu_device *adev)

{

	return 0;

}

static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)

static int amdgpu_debugfs_regs_init(struct amdgpu_device *adev)

{

{

	return 0;

	return 0;