Enable PXP with MTL-GSC-CS: add the has_pxp into device info
and increase the debugfs teardown timeouts to align with
new GSC-CS + firmware specs.
Now that we have 3 places that are selecting pxp timeouts
based on tee vs gsccs back-end, let's add a helper.
Signed-off-by: Alan Previn <alan.previn.teres.ale...@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
---
drivers/gpu/drm/i915/i915_pci.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.c | 18 ++++++++++--------
drivers/gpu/drm/i915/pxp/intel_pxp.h | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c | 6 +++++-
drivers/gpu/drm/i915/pxp/intel_pxp_session.c | 2 +-
5 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 5fcc9cfed671..f59122e33465 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -1152,6 +1152,7 @@ static const struct intel_device_info mtl_info = {
.has_llc = 0,
.has_mslice_steering = 0,
.has_snoop = 1,
+ .has_pxp = 1,
.__runtime.memory_regions = REGION_SMEM | REGION_STOLEN_LMEM,
.__runtime.platform_engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(CCS0),
.require_force_probe = 1,
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c
b/drivers/gpu/drm/i915/pxp/intel_pxp.c
index f143eadbc253..bb2e15329f34 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c
@@ -289,6 +289,14 @@ static bool pxp_component_bound(struct intel_pxp *pxp)
return bound;
}
+int intel_pxp_get_backend_timeout_ms(struct intel_pxp *pxp)
+{
+ if (HAS_ENGINE(pxp->ctrl_gt, GSC0))
+ return GSCFW_MAX_ROUND_TRIP_LATENCY_MS;
+ else
+ return 250;
+}
+
static int __pxp_global_teardown_final(struct intel_pxp *pxp)
{
int timeout;
@@ -302,10 +310,7 @@ static int __pxp_global_teardown_final(struct intel_pxp
*pxp)
intel_pxp_mark_termination_in_progress(pxp);
intel_pxp_terminate(pxp, false);
- if (HAS_ENGINE(pxp->ctrl_gt, GSC0))
- timeout = GSCFW_MAX_ROUND_TRIP_LATENCY_MS;
- else
- timeout = 250;
+ timeout = intel_pxp_get_backend_timeout_ms(pxp);
if (!wait_for_completion_timeout(&pxp->termination,
msecs_to_jiffies(timeout)))
return -ETIMEDOUT;
@@ -325,10 +330,7 @@ static int __pxp_global_teardown_restart(struct intel_pxp
*pxp)
*/
pxp_queue_termination(pxp);
- if (HAS_ENGINE(pxp->ctrl_gt, GSC0))
- timeout = GSCFW_MAX_ROUND_TRIP_LATENCY_MS;
- else
- timeout = 250;
+ timeout = intel_pxp_get_backend_timeout_ms(pxp);
if (!wait_for_completion_timeout(&pxp->termination,
msecs_to_jiffies(timeout)))
return -ETIMEDOUT;
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h
b/drivers/gpu/drm/i915/pxp/intel_pxp.h
index 17e6dbc86b38..17254c3f1267 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h
@@ -27,6 +27,7 @@ void intel_pxp_mark_termination_in_progress(struct intel_pxp
*pxp);
void intel_pxp_tee_end_arb_fw_session(struct intel_pxp *pxp, u32
arb_session_id);
int intel_pxp_get_readiness_status(struct intel_pxp *pxp);
+int intel_pxp_get_backend_timeout_ms(struct intel_pxp *pxp);
int intel_pxp_start(struct intel_pxp *pxp);
void intel_pxp_end(struct intel_pxp *pxp);
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c
b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c
index 4b8e70caa3ad..e07c5b380789 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c
@@ -14,6 +14,7 @@
#include "intel_pxp.h"
#include "intel_pxp_debugfs.h"
+#include "intel_pxp_gsccs.h"
#include "intel_pxp_irq.h"
#include "intel_pxp_types.h"
@@ -45,6 +46,7 @@ static int pxp_terminate_set(void *data, u64 val)
{
struct intel_pxp *pxp = data;
struct intel_gt *gt = pxp->ctrl_gt;
+ int timeout_ms;
if (!intel_pxp_is_active(pxp))
return -ENODEV;
@@ -54,8 +56,10 @@ static int pxp_terminate_set(void *data, u64 val)
intel_pxp_irq_handler(pxp,
GEN12_DISPLAY_PXP_STATE_TERMINATED_INTERRUPT);
spin_unlock_irq(gt->irq_lock);
+ timeout_ms = intel_pxp_get_backend_timeout_ms(pxp);
+
if (!wait_for_completion_timeout(&pxp->termination,
- msecs_to_jiffies(100)))
+ msecs_to_jiffies(timeout_ms)))
return -ETIMEDOUT;
return 0;
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
index e4d8242302c5..0a3e66b0265e 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
@@ -44,7 +44,7 @@ static int pxp_wait_for_session_state(struct intel_pxp *pxp,
u32 id, bool in_pla
KCR_SIP(pxp->kcr_base),
mask,
in_play ? mask : 0,
- 100);
+ 250);
intel_runtime_pm_put(uncore->rpm, wakeref);
--
2.39.0
