From: wenlunpeng <wenlunpeng@xxxxxxxxxxxxx>
The quirk is for reboot-stability.
A device reboot stress test has been observed to cause
random system hangs when amdgpu_dpm is enabled.
Disabling amdgpu_dpm can fix this.
However, a boot-param can still overwrite it to enable
amdgpu_dpm.
Serial log when error occurs:
...
Console: switching to colour frame buffer device 160x45
amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device
[drm:amdgpu_device_ip_late_init] *ERROR* late_init of IP block <si_dpm> failed -22
amdgpu 0000:01:00.0: amdgpu_device_ip_late_init failed
amdgpu 0000:01:00.0: Fatal error during GPU init
[drm] amdgpu: finishing device.
Console: switching to colour dummy device 80x25
...
Signed-off-by: wenlunpeng <wenlunpeng@xxxxxxxxxxxxx>
Signed-off-by: WangYuli <wangyuli@xxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 094498a0964b..81716fcac7cd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -32,6 +32,7 @@
#include <drm/drm_vblank.h>
#include <linux/cc_platform.h>
+#include <linux/dmi.h>
#include <linux/dynamic_debug.h>
#include <linux/module.h>
#include <linux/mmu_notifier.h>
@@ -3023,10 +3024,32 @@ static struct pci_driver amdgpu_kms_pci_driver = {
.dev_groups = amdgpu_sysfs_groups,
};
+static int quirk_set_amdgpu_dpm_0(const struct dmi_system_id *dmi)
+{
+ amdgpu_dpm = 0;
+ pr_info("Identified '%s', set amdgpu_dpm to 0.\n", dmi->ident);
+ return 1;
+}
+
+static const struct dmi_system_id amdgpu_quirklist[] = {
+ {
+ .ident = "DS25 Desktop",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "THTF-SW831-1W-DS25_MB"),
+ },
+ .callback = quirk_set_amdgpu_dpm_0,
+ },
+ {}
+};
+
static int __init amdgpu_init(void)
{
int r;
+ /* quirks for some hardware, applied only when it's untouched */
+ if (amdgpu_dpm == -1)
+ dmi_check_system(amdgpu_quirklist);
+
if (drm_firmware_drivers_only())
return -EINVAL;
--
2.43.4
