[Bug,110674] Crashes / Resets From AMDGPU / Radeon VII

Commit Message

[e-mail] Aug. 13, 2019, 1:05 p.m. UTC

https://bugs.freedesktop.org/show_bug.cgi?id=110674

--- Comment #94 from Tom B <[e-mail]> ---
Reverting d1a3e239a6016f2bb42a91696056e223982e8538 didn't fix it for me. But
that commit may give some insight because it is related to uclk which is the
first error we get.

I also tried globally increasing usec_timeout as it's used in a few places
(patch below). This makes the PC take about a minute to boot up, so clearly the
GPU is in an invalid state before these timeouts are hit and then each
subsequent call to smum_send_msg_to_smc_with_parameter causes a delay because
each call times out. Whatever happens, puts the card into a state that it can't
recover from.

The next step is to try to find where vega20_set_uclk_to_highest_dpm_level is
called from and see what happens just before the call to this function.

Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index f4ac632a87b2..9b878c74b17e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2418,7 +2418,7 @@  int amdgpu_device_init(struct amdgpu_device *adev,
        adev->pdev = pdev;
        adev->flags = flags;
        adev->asic_type = flags & AMD_ASIC_MASK;
-       adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT;
+       adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT*10;
        if (amdgpu_emu_mode == 1)
                adev->usec_timeout *= 2;
        adev->gmc.gart_size = 512 * 1024 * 1024;
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
index a7e8340baf90..a6b2bc4277ef 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
@@ -84,7 +84,7 @@  int hwmgr_early_init(struct pp_hwmgr *hwmgr)
        if (!hwmgr)
                return -EINVAL;

-       hwmgr->usec_timeout = AMD_MAX_USEC_TIMEOUT;
+       hwmgr->usec_timeout = AMD_MAX_USEC_TIMEOUT*10;
        hwmgr->pp_table_version = PP_TABLE_V1;
        hwmgr->dpm_level = AMD_DPM_FORCED_LEVEL_AUTO;
        hwmgr->request_dpm_level = AMD_DPM_FORCED_LEVEL_AUTO;