At this point the ASIC is already post reset by the HW/PSP
so the HW not in proper state to be configured for suspension,
some bloks might be even gated and so best is to avoid touching it.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 37 ++++++++++++++++++++++++++----
drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 6 +++++
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 6 +++++
drivers/gpu/drm/amd/amdgpu/atom.c | 1 +
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 18 +++++++++------
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 3 +++
drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 3 +++
8 files changed, 64 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 3399242..3489622 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -992,6 +992,7 @@ struct amdgpu_device {
atomic_t throttling_logging_enabled;
struct ratelimit_state throttling_logging_rs;
uint32_t ras_features;
+ bool in_dpc;
};
static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 84f8d14..e1bbefd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -319,6 +319,9 @@ uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
{
uint32_t ret;
+ if (adev->in_dpc)
+ return 0;
+
if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev))
return amdgpu_kiq_rreg(adev, reg);
@@ -350,8 +353,10 @@ uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
*
* Returns the 8 bit value from the offset specified.
*/
-uint8_t amdgpu_mm_rreg8(struct amdgpu_device *adev, uint32_t offset)
-{
+uint8_t amdgpu_mm_rreg8(struct amdgpu_device *adev, uint32_t offset) {
+
+ if (adev->in_dpc)
+ return 0;
if (offset < adev->rmmio_size)
return (readb(adev->rmmio + offset));
@@ -373,8 +378,10 @@ uint8_t amdgpu_mm_rreg8(struct amdgpu_device *adev, uint32_t offset)
*
* Writes the value specified to the offset specified.
*/
-void amdgpu_mm_wreg8(struct amdgpu_device *adev, uint32_t offset, uint8_t value)
-{
+void amdgpu_mm_wreg8(struct amdgpu_device *adev, uint32_t offset, uint8_t value) {
+
+ if (adev->in_dpc)
+ return;
if (offset < adev->rmmio_size)
writeb(value, adev->rmmio + offset);
@@ -384,6 +391,8 @@ void amdgpu_mm_wreg8(struct amdgpu_device *adev, uint32_t offset, uint8_t value)
void static inline amdgpu_mm_wreg_mmio(struct amdgpu_device *adev, uint32_t reg, uint32_t v, uint32_t acc_flags)
{
+ if (adev->in_dpc)
+ return;
trace_amdgpu_mm_wreg(adev->pdev->device, reg, v);
@@ -412,6 +421,8 @@ void static inline amdgpu_mm_wreg_mmio(struct amdgpu_device *adev, uint32_t reg,
void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
uint32_t acc_flags)
{
+ if (adev->in_dpc)
+ return;
if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev))
return amdgpu_kiq_wreg(adev, reg, v);
@@ -427,6 +438,9 @@ void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
uint32_t acc_flags)
{
+ if (adev->in_dpc)
+ return;
+
if (amdgpu_sriov_fullaccess(adev) &&
adev->gfx.rlc.funcs &&
adev->gfx.rlc.funcs->is_rlcg_access_range) {
@@ -448,6 +462,9 @@ void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev, uint32_t reg, uint32_t
*/
u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg)
{
+ if (adev->in_dpc)
+ return 0;
+
if ((reg * 4) < adev->rio_mem_size)
return ioread32(adev->rio_mem + (reg * 4));
else {
@@ -467,6 +484,8 @@ u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg)
*/
void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
{
+ if (adev->in_dpc)
+ return;
if ((reg * 4) < adev->rio_mem_size)
iowrite32(v, adev->rio_mem + (reg * 4));
@@ -487,6 +506,8 @@ void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
*/
u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index)
{
+ if (adev->in_dpc)
+ return 0;
if (index < adev->doorbell.num_doorbells) {
return readl(adev->doorbell.ptr + index);
@@ -508,6 +529,8 @@ u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index)
*/
void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v)
{
+ if (adev->in_dpc)
+ return;
if (index < adev->doorbell.num_doorbells) {
writel(v, adev->doorbell.ptr + index);
@@ -527,6 +550,8 @@ void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v)
*/
u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index)
{
+ if (adev->in_dpc)
+ return 0;
if (index < adev->doorbell.num_doorbells) {
return atomic64_read((atomic64_t *)(adev->doorbell.ptr + index));
@@ -548,6 +573,8 @@ u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index)
*/
void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v)
{
+ if (adev->in_dpc)
+ return;
if (index < adev->doorbell.num_doorbells) {
atomic64_set((atomic64_t *)(adev->doorbell.ptr + index), v);
@@ -4790,7 +4817,9 @@ pci_ers_result_t amdgpu_pci_slot_reset(struct pci_dev *pdev)
pci_restore_state(pdev);
+ adev->in_dpc = true;
r = amdgpu_device_ip_suspend(adev);
+ adev->in_dpc = false;
if (r)
goto out;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index d698142..50c42c9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -693,6 +693,9 @@ uint32_t amdgpu_kiq_rreg(struct amdgpu_device *adev, uint32_t reg)
struct amdgpu_kiq *kiq = &adev->gfx.kiq;
struct amdgpu_ring *ring = &kiq->ring;
+ if (adev->in_dpc)
+ return 0;
+
BUG_ON(!ring->funcs->emit_rreg);
spin_lock_irqsave(&kiq->ring_lock, flags);
@@ -757,6 +760,9 @@ void amdgpu_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
BUG_ON(!ring->funcs->emit_wreg);
+ if (adev->in_dpc)
+ return;
+
spin_lock_irqsave(&kiq->ring_lock, flags);
amdgpu_ring_alloc(ring, 32);
amdgpu_ring_emit_wreg(ring, reg, v);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index d6c38e2..555ef59 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -219,6 +219,9 @@ int psp_wait_for(struct psp_context *psp, uint32_t reg_index,
int i;
struct amdgpu_device *adev = psp->adev;
+ if (psp->adev->in_dpc)
+ return 0;
+
for (i = 0; i < adev->usec_timeout; i++) {
val = RREG32(reg_index);
if (check_changed) {
@@ -245,6 +248,9 @@ psp_cmd_submit_buf(struct psp_context *psp,
bool ras_intr = false;
bool skip_unsupport = false;
+ if (psp->adev->in_dpc)
+ return 0;
+
mutex_lock(&psp->mutex);
memset(psp->cmd_buf_mem, 0, PSP_CMD_BUFFER_SIZE);
diff --git a/drivers/gpu/drm/amd/amdgpu/atom.c b/drivers/gpu/drm/amd/amdgpu/atom.c
index 4cfc786..613dac1 100644
--- a/drivers/gpu/drm/amd/amdgpu/atom.c
+++ b/drivers/gpu/drm/amd/amdgpu/atom.c
@@ -750,6 +750,7 @@ static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
DRM_ERROR("atombios stuck in loop for more than %dsecs aborting\n",
ATOM_CMD_TIMEOUT_SEC);
ctx->abort = true;
+ dump_stack();
}
} else {
/* jiffies wrap around we will just wait a little longer */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 2db195e..86f268e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -6980,15 +6980,19 @@ static int gfx_v10_0_hw_fini(void *handle)
amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0);
amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0);
+
+ if (!adev->in_dpc) {
#ifndef BRING_UP_DEBUG
- if (amdgpu_async_gfx_ring) {
- r = gfx_v10_0_kiq_disable_kgq(adev);
- if (r)
- DRM_ERROR("KGQ disable failed\n");
- }
+ if (amdgpu_async_gfx_ring) {
+ r = gfx_v10_0_kiq_disable_kgq(adev);
+ if (r)
+ DRM_ERROR("KGQ disable failed\n");
+ }
#endif
- if (amdgpu_gfx_disable_kcq(adev))
- DRM_ERROR("KCQ disable failed\n");
+ if (amdgpu_gfx_disable_kcq(adev))
+ DRM_ERROR("KCQ disable failed\n");
+ }
+
if (amdgpu_sriov_vf(adev)) {
gfx_v10_0_cp_gfx_enable(adev, false);
/* Program KIQ position of RLC_CP_SCHEDULERS during destroy */
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 8462b30..306461d 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -224,9 +224,12 @@ int smu_dpm_set_power_gate(struct smu_context *smu, uint32_t block_type,
{
int ret = 0;
+
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
+
+
switch (block_type) {
/*
* Some legacy code of amdgpu_vcn.c and vcn_v2*.c still uses
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
index a58ea08..02cf55e 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
@@ -112,6 +112,9 @@ int smu_cmn_send_smc_msg_with_param(struct smu_context *smu,
struct amdgpu_device *adev = smu->adev;
int ret = 0, index = 0;
+ if (smu->adev->in_dpc)
+ return 0;
+
index = smu_cmn_to_asic_specific_index(smu,
CMN2ASIC_MAPPING_MSG,
msg);
--
2.7.4
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