VFs do not perform HW fini/suspend in FLR, so the dpm_enabled
is incorrectly kept enabled. Add interface to disable it in
virt_pre_reset call.
v2: Made implementation generic for all asics
v3: Re-order conditionals so PP_MP1_STATE_FLR is only evaluated on VF
Signed-off-by: Victor Skvortsov <victor.skvortsov@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 ++----
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 8 ++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 1 +
drivers/gpu/drm/amd/include/kgd_pp_interface.h | 1 +
drivers/gpu/drm/amd/pm/amdgpu_dpm.c | 6 +++++-
5 files changed, 17 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 29a4adee9286..a6b8d0ba4758 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -5289,10 +5289,8 @@ int amdgpu_device_pre_asic_reset(struct amdgpu_device *adev,
if (reset_context->reset_req_dev == adev)
job = reset_context->job;
- if (amdgpu_sriov_vf(adev)) {
- /* stop the data exchange thread */
- amdgpu_virt_fini_data_exchange(adev);
- }
+ if (amdgpu_sriov_vf(adev))
+ amdgpu_virt_pre_reset(adev);
amdgpu_fence_driver_isr_toggle(adev, true);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index b287a82e6177..b6397d3229e1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -33,6 +33,7 @@
#include "amdgpu.h"
#include "amdgpu_ras.h"
#include "amdgpu_reset.h"
+#include "amdgpu_dpm.h"
#include "vi.h"
#include "soc15.h"
#include "nv.h"
@@ -849,6 +850,13 @@ enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *ad
return mode;
}
+void amdgpu_virt_pre_reset(struct amdgpu_device *adev)
+{
+ /* stop the data exchange thread */
+ amdgpu_virt_fini_data_exchange(adev);
+ amdgpu_dpm_set_mp1_state(adev, PP_MP1_STATE_FLR);
+}
+
void amdgpu_virt_post_reset(struct amdgpu_device *adev)
{
if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(11, 0, 3)) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
index b42a8854dca0..b650a2032c42 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
@@ -376,6 +376,7 @@ u32 amdgpu_sriov_rreg(struct amdgpu_device *adev,
u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id);
bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev,
uint32_t ucode_id);
+void amdgpu_virt_pre_reset(struct amdgpu_device *adev);
void amdgpu_virt_post_reset(struct amdgpu_device *adev);
bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev);
bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev,
diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index 4b20e2274313..19a48d98830a 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -218,6 +218,7 @@ enum pp_mp1_state {
PP_MP1_STATE_SHUTDOWN,
PP_MP1_STATE_UNLOAD,
PP_MP1_STATE_RESET,
+ PP_MP1_STATE_FLR,
};
enum pp_df_cstate {
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 8b7d6ed7e2ed..9dc82f4d7c93 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -168,7 +168,11 @@ int amdgpu_dpm_set_mp1_state(struct amdgpu_device *adev,
int ret = 0;
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
- if (pp_funcs && pp_funcs->set_mp1_state) {
+ if (mp1_state == PP_MP1_STATE_FLR) {
+ /* VF lost access to SMU */
+ if (amdgpu_sriov_vf(adev))
+ adev->pm.dpm_enabled = false;
+ } else if (pp_funcs && pp_funcs->set_mp1_state) {
mutex_lock(&adev->pm.mutex);
ret = pp_funcs->set_mp1_state(
--
2.34.1
