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drm/amdgpu: export test ib debugfs interface

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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: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2017-05-10 23:04:06 +08:00 committed by Alex Deucher
parent 17d176a5cc
commit 4f0955fcc0
1 changed files with 54 additions and 0 deletions
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54
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -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;