When the GPU is in reset, accessing the hw is unreliable and could interfere with the reset. Return an error in those cases.
Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 341d072edd95..fd51d6554ee2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -684,6 +684,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file if (info->read_mmr_reg.count > 128) return -EINVAL; + if (adev->in_gpu_reset) + return -EPERM; + regs = kmalloc_array(info->read_mmr_reg.count, sizeof(*regs), GFP_KERNEL); if (!regs) return -ENOMEM; @@ -854,6 +857,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file if (!adev->pm.dpm_enabled) return -ENOENT; + if (adev->in_gpu_reset) + return -EPERM; + switch (info->sensor_info.type) { case AMDGPU_INFO_SENSOR_GFX_SCLK: /* get sclk in Mhz */ -- 2.25.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
