For Gen12 when using mei-pxp tee backend tranport, if we are coming
up from a cold boot or from a resume (not runtime resume), we can
optionally quicken the very first session cleanup that would occur
as part of starting up a default PXP session. Typically a cleanup
from a cold-start is expected to be quick so we can use a shorter
timeout and skip retries (when getting non-success on calling
backend transport for intel_pxp_tee_end_arb_fw_session).
While we are touching this area of code, lets not update
pxp->platform_cfg_is_bad so its not done inside an "is_foo"
helper, move that to the helper's caller.
Signed-off-by: Alan Previn <alan.previn.teres.ale...@intel.com>
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c | 3 ++-
drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_session.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_tee.c | 23 +++++++++++++-------
drivers/gpu/drm/i915/pxp/intel_pxp_types.h | 10 +++++++++
6 files changed, 30 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c
b/drivers/gpu/drm/i915/pxp/intel_pxp.c
index dc327cf40b5a..b4de34e6ad01 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c
@@ -140,6 +140,7 @@ static void pxp_init_full(struct intel_pxp *pxp)
if (ret)
return;
+ pxp->hw_state_coldstart = true;
if (HAS_ENGINE(pxp->ctrl_gt, GSC0))
ret = intel_pxp_gsccs_init(pxp);
else
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
b/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
index 75df959b0aa0..94a26faac14f 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
@@ -24,7 +24,6 @@ is_fw_err_platform_config(struct intel_pxp *pxp, u32 type)
case PXP_STATUS_ERROR_API_VERSION:
case PXP_STATUS_PLATFCONFIG_KF1_NOVERIF:
case PXP_STATUS_PLATFCONFIG_KF1_BAD:
- pxp->platform_cfg_is_bad = true;
return true;
default:
break;
@@ -228,6 +227,7 @@ int intel_pxp_gsccs_create_session(struct intel_pxp *pxp,
drm_err(&i915->drm, "Failed to init session %d, ret=[%d]\n",
arb_session_id, ret);
} else if (msg_out.header.status != 0) {
if (is_fw_err_platform_config(pxp, msg_out.header.status)) {
+ pxp->platform_cfg_is_bad = true;
drm_info_once(&i915->drm,
"PXP init-session-%d failed due to
BIOS/SOC:0x%08x:%s\n",
arb_session_id, msg_out.header.status,
@@ -271,6 +271,7 @@ void intel_pxp_gsccs_end_arb_fw_session(struct intel_pxp
*pxp, u32 session_id)
session_id, ret);
} else if (msg_out.header.status != 0) {
if (is_fw_err_platform_config(pxp, msg_out.header.status)) {
+ pxp->platform_cfg_is_bad = true;
drm_info_once(&i915->drm,
"PXP inv-stream-key-%u failed due to
BIOS/SOC :0x%08x:%s\n",
session_id, msg_out.header.status,
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c
b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c
index 6dfd24918953..fd53b4fd7bac 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c
@@ -60,6 +60,7 @@ static void _pxp_resume(struct intel_pxp *pxp, bool
take_wakeref)
void intel_pxp_resume_complete(struct intel_pxp *pxp)
{
_pxp_resume(pxp, true);
+ pxp->hw_state_coldstart = true;
}
void intel_pxp_runtime_resume(struct intel_pxp *pxp)
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
index 0a3e66b0265e..7979648c6a2c 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
@@ -114,6 +114,7 @@ static int pxp_terminate_arb_session_and_global(struct
intel_pxp *pxp)
intel_pxp_gsccs_end_arb_fw_session(pxp, ARB_SESSION);
else
intel_pxp_tee_end_arb_fw_session(pxp, ARB_SESSION);
+ pxp->hw_state_coldstart = false;
return ret;
}
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
index b00d6c280159..07696738d31b 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
@@ -22,6 +22,7 @@
#include "intel_pxp_types.h"
#define PXP_TRANSPORT_TIMEOUT_MS 5000 /* 5 sec */
+#define PXP_TRANSPORT_TIMEOUT_FAST_MS 1000 /* 1 sec */
static bool
is_fw_err_platform_config(struct intel_pxp *pxp, u32 type)
@@ -30,7 +31,6 @@ is_fw_err_platform_config(struct intel_pxp *pxp, u32 type)
case PXP_STATUS_ERROR_API_VERSION:
case PXP_STATUS_PLATFCONFIG_KF1_NOVERIF:
case PXP_STATUS_PLATFCONFIG_KF1_BAD:
- pxp->platform_cfg_is_bad = true;
return true;
default:
break;
@@ -58,7 +58,8 @@ fw_err_to_string(u32 type)
static int intel_pxp_tee_io_message(struct intel_pxp *pxp,
void *msg_in, u32 msg_in_size,
void *msg_out, u32 msg_out_max_size,
- u32 *msg_out_rcv_size)
+ u32 *msg_out_rcv_size,
+ unsigned long timeout_ms)
{
struct drm_i915_private *i915 = pxp->ctrl_gt->i915;
struct i915_pxp_component *pxp_component = pxp->pxp_component;
@@ -76,14 +77,14 @@ static int intel_pxp_tee_io_message(struct intel_pxp *pxp,
}
ret = pxp_component->ops->send(pxp_component->tee_dev, msg_in,
msg_in_size,
- PXP_TRANSPORT_TIMEOUT_MS);
+ timeout_ms);
if (ret) {
drm_err(&i915->drm, "Failed to send PXP TEE message\n");
goto unlock;
}
ret = pxp_component->ops->recv(pxp_component->tee_dev, msg_out,
msg_out_max_size,
- PXP_TRANSPORT_TIMEOUT_MS);
+ timeout_ms);
if (ret < 0) {
drm_err(&i915->drm, "Failed to receive PXP TEE message\n");
goto unlock;
@@ -344,12 +345,13 @@ int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp
*pxp,
ret = intel_pxp_tee_io_message(pxp,
&msg_in, sizeof(msg_in),
&msg_out, sizeof(msg_out),
- NULL);
+ NULL, PXP_TRANSPORT_TIMEOUT_MS);
if (ret) {
drm_err(&i915->drm, "Failed to send tee msg init arb session,
ret=[%d]\n", ret);
} else if (msg_out.header.status != 0) {
if (is_fw_err_platform_config(pxp, msg_out.header.status)) {
+ pxp->platform_cfg_is_bad = true;
drm_info_once(&i915->drm,
"PXP init-arb-session-%d failed due to
BIOS/SOC:0x%08x:%s\n",
arb_session_id, msg_out.header.status,
@@ -387,10 +389,14 @@ void intel_pxp_tee_end_arb_fw_session(struct intel_pxp
*pxp, u32 session_id)
ret = intel_pxp_tee_io_message(pxp,
&msg_in, sizeof(msg_in),
&msg_out, sizeof(msg_out),
- NULL);
+ NULL, pxp->hw_state_coldstart ?
+ PXP_TRANSPORT_TIMEOUT_FAST_MS :
PXP_TRANSPORT_TIMEOUT_MS);
- /* Cleanup coherency between GT and Firmware is critical, so try again
if it fails */
- if ((ret || msg_out.header.status != 0x0) && ++trials < 3)
+ /*
+ * Cleanup coherency between GT and Firmware is critical, so try again
if it
+ * fails, unless we are performing a cold-start reset
+ */
+ if ((ret || msg_out.header.status != 0x0) && !pxp->hw_state_coldstart
&& ++trials < 3)
goto try_again;
if (ret) {
@@ -398,6 +404,7 @@ void intel_pxp_tee_end_arb_fw_session(struct intel_pxp
*pxp, u32 session_id)
session_id, ret);
} else if (msg_out.header.status != 0) {
if (is_fw_err_platform_config(pxp, msg_out.header.status)) {
+ pxp->platform_cfg_is_bad = true;
drm_info_once(&i915->drm,
"PXP inv-stream-key-%u failed due to
BIOS/SOC :0x%08x:%s\n",
session_id, msg_out.header.status,
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h
b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h
index 7e11fa8034b2..acafd5dfe12f 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h
@@ -108,6 +108,16 @@ struct intel_pxp {
* we only re-start the arb session when required.
*/
bool hw_state_invalidated;
+ /**
+ * @hw_state_coldstart: If we are coming up from a cold boot or from
+ * resume (not runtime resume) condition, we can optionally quicken
+ * the very first session cleanup that would occur as part of starting
+ * up a default PXP session. Typically a cleanup from a cold-start
+ * is expected to be quick so we can use a shorter timeout and skip
+ * retries (when getting non-success on calling backend transport
+ * for intel_pxp_tee_end_arb_fw_session).
+ */
+ bool hw_state_coldstart;
/** @irq_enabled: tracks the status of the kcr irqs */
bool irq_enabled;
base-commit: 346f47e69d27a4b3177c2939b1f6f26d093ad8c4
--
2.39.0
