[PATCH i-g-t 1/5] tests/intel/xe_pm: Update runtime pm conditions
Rodrigo Vivi
rodrigo.vivi at intel.com
Thu May 16 18:10:11 UTC 2024
Xe is no longer holding a runtime pm reference for the life
of a VM or exec_queue.
Also, IGT changes autosuspend time to a minimal time, so we
cannot guarantee that rpm is still suspended after the execution
has finished.
So, the reference usage is not a reliable reference.
Hence, start using runtime_active_time as the indicator
that runtime_pm resumed upon our actions.
v2: Usage of runtime_active_pm and inclusion of mmap tests.
v3: Add doc for the exported lib function (Kamil)
Cc: Kamil Konieczny <kamil.konieczny at linux.intel.com>
Cc: Badal Nilawar <badal.nilawar at intel.com>
Cc: Anshuman Gupta <anshuman.gupta at intel.com>
Cc: Francois Dugast <francois.dugast at intel.com>
Reviewed-by: Francois Dugast <francois.dugast at intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
lib/igt_pm.c | 24 ++++++++++++++
lib/igt_pm.h | 1 +
tests/intel/xe_pm.c | 77 +++++++++++++++++----------------------------
3 files changed, 53 insertions(+), 49 deletions(-)
diff --git a/lib/igt_pm.c b/lib/igt_pm.c
index fe7692960..928b72685 100644
--- a/lib/igt_pm.c
+++ b/lib/igt_pm.c
@@ -1412,6 +1412,30 @@ int igt_pm_get_runtime_suspended_time(struct pci_device *pci_dev)
return -1;
}
+/**
+ * igt_pm_get_runtime_active_time:
+ * @pci_dev: PCI device struct
+ *
+ * Return: The total time that the device has been active.
+ */
+int igt_pm_get_runtime_active_time(struct pci_device *pci_dev)
+{
+ char time_str[64];
+ int time, time_fd;
+
+ time_fd = igt_pm_get_power_attr_fd_rdonly(pci_dev, "runtime_active_time");
+ if (igt_pm_read_power_attr(time_fd, time_str, 64, false)) {
+ igt_assert(sscanf(time_str, "%d", &time) > 0);
+
+ igt_debug("runtime active time for PCI '%04x:%02x:%02x.%01x' = %d\n",
+ pci_dev->domain, pci_dev->bus, pci_dev->dev, pci_dev->func, time);
+
+ return time;
+ }
+
+ return -1;
+}
+
/**
* igt_pm_get_runtime_usage:
* @pci_dev: pci device
diff --git a/lib/igt_pm.h b/lib/igt_pm.h
index 91ee05cd1..b71f7c440 100644
--- a/lib/igt_pm.h
+++ b/lib/igt_pm.h
@@ -94,6 +94,7 @@ void igt_pm_print_pci_card_runtime_status(void);
bool i915_is_slpc_enabled_gt(int drm_fd, int gt);
bool i915_is_slpc_enabled(int drm_fd);
int igt_pm_get_runtime_suspended_time(struct pci_device *pci_dev);
+int igt_pm_get_runtime_active_time(struct pci_device *pci_dev);
int igt_pm_get_runtime_usage(struct pci_device *pci_dev);
void igt_pm_ignore_slpc_efficient_freq(int i915, int gtfd, bool val);
diff --git a/tests/intel/xe_pm.c b/tests/intel/xe_pm.c
index 9cb00c7f1..9e1f1723d 100644
--- a/tests/intel/xe_pm.c
+++ b/tests/intel/xe_pm.c
@@ -185,34 +185,6 @@ static bool in_d3(device_t device, enum igt_acpi_d_state state)
return true;
}
-static bool out_of_d3(device_t device, enum igt_acpi_d_state state)
-{
- uint16_t val;
-
- /* Runtime resume needs to be immediate action without any wait */
- if (runtime_usage_available(device.pci_xe) &&
- igt_pm_get_runtime_usage(device.pci_xe) <= 0)
- return false;
-
- if (igt_get_runtime_pm_status() != IGT_RUNTIME_PM_STATUS_ACTIVE)
- return false;
-
- switch (state) {
- case IGT_ACPI_D3Hot:
- igt_assert_eq(pci_device_cfg_read_u16(device.pci_xe,
- &val, 0xd4), 0);
- return (val & 0x3) == 0;
- case IGT_ACPI_D3Cold:
- return igt_pm_get_acpi_real_d_state(device.pci_root) ==
- IGT_ACPI_D0;
- default:
- igt_info("Invalid D3 State\n");
- igt_assert(0);
- }
-
- return true;
-}
-
static void close_fw_handle(int sig)
{
if (fw_handle < 0)
@@ -323,27 +295,27 @@ test_exec(device_t device, struct drm_xe_engine_class_instance *eci,
uint64_t pad;
uint32_t data;
} *data;
- int i, b, rpm_usage;
+ int i, b, active_time;
bool check_rpm = (d_state == IGT_ACPI_D3Hot ||
d_state == IGT_ACPI_D3Cold);
igt_assert(n_exec_queues <= MAX_N_EXEC_QUEUES);
igt_assert(n_execs > 0);
- if (check_rpm)
+ if (check_rpm) {
igt_assert(in_d3(device, d_state));
+ active_time = igt_pm_get_runtime_active_time(device.pci_xe);
+ }
vm = xe_vm_create(device.fd_xe, 0, 0);
if (check_rpm)
- igt_assert(out_of_d3(device, d_state));
+ igt_assert(igt_pm_get_runtime_active_time(device.pci_xe) >
+ active_time);
bo_size = sizeof(*data) * n_execs;
bo_size = xe_bb_size(device.fd_xe, bo_size);
- if (check_rpm && runtime_usage_available(device.pci_xe))
- rpm_usage = igt_pm_get_runtime_usage(device.pci_xe);
-
if (flags & USERPTR) {
data = aligned_alloc(xe_get_default_alignment(device.fd_xe), bo_size);
memset(data, 0, bo_size);
@@ -381,8 +353,10 @@ test_exec(device_t device, struct drm_xe_engine_class_instance *eci,
xe_vm_prefetch_async(device.fd_xe, vm, bind_exec_queues[0], 0, addr,
bo_size, sync, 1, 0);
- if (check_rpm && runtime_usage_available(device.pci_xe))
- igt_assert(igt_pm_get_runtime_usage(device.pci_xe) > rpm_usage);
+ if (check_rpm) {
+ igt_assert(in_d3(device, d_state));
+ active_time = igt_pm_get_runtime_active_time(device.pci_xe);
+ }
for (i = 0; i < n_execs; i++) {
uint64_t batch_offset = (char *)&data[i].batch - (char *)data;
@@ -426,9 +400,6 @@ test_exec(device_t device, struct drm_xe_engine_class_instance *eci,
igt_assert(syncobj_wait(device.fd_xe, &sync[0].handle, 1, INT64_MAX, 0,
NULL));
- if (check_rpm && runtime_usage_available(device.pci_xe))
- rpm_usage = igt_pm_get_runtime_usage(device.pci_xe);
-
sync[0].flags |= DRM_XE_SYNC_FLAG_SIGNAL;
if (n_vmas > 1)
xe_vm_unbind_all_async(device.fd_xe, vm, 0, bo, sync, 1);
@@ -456,15 +427,13 @@ NULL));
free(data);
}
- if (check_rpm && runtime_usage_available(device.pci_xe))
- igt_assert(igt_pm_get_runtime_usage(device.pci_xe) < rpm_usage);
- if (check_rpm)
- igt_assert(out_of_d3(device, d_state));
-
xe_vm_destroy(device.fd_xe, vm);
- if (check_rpm)
+ if (check_rpm) {
+ igt_assert(igt_pm_get_runtime_active_time(device.pci_xe) >
+ active_time);
igt_assert(in_d3(device, d_state));
+ }
}
/**
@@ -558,10 +527,13 @@ static void test_mmap(device_t device, uint32_t placement, uint32_t flags)
size_t bo_size = 8192;
uint32_t *map = NULL;
uint32_t bo;
- int i;
+ int i, active_time;
igt_require_f(placement, "Device doesn't support such memory region\n");
+ igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+ active_time = igt_pm_get_runtime_active_time(device.pci_xe);
+
bo_size = ALIGN(bo_size, xe_get_default_alignment(device.fd_xe));
bo = xe_bo_create(device.fd_xe, 0, bo_size, placement, flags);
@@ -572,7 +544,8 @@ static void test_mmap(device_t device, uint32_t placement, uint32_t flags)
fw_handle = igt_debugfs_open(device.fd_xe, "forcewake_all", O_RDONLY);
igt_assert(fw_handle >= 0);
- igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
+ igt_assert(igt_pm_get_runtime_active_time(device.pci_xe) >
+ active_time);
for (i = 0; i < bo_size / sizeof(*map); i++)
map[i] = MAGIC_1;
@@ -582,22 +555,28 @@ static void test_mmap(device_t device, uint32_t placement, uint32_t flags)
/* Runtime suspend and validate the pattern and changed the pattern */
close(fw_handle);
+ sleep(1);
+
igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+ active_time = igt_pm_get_runtime_active_time(device.pci_xe);
for (i = 0; i < bo_size / sizeof(*map); i++)
igt_assert(map[i] == MAGIC_1);
/* dgfx page-fault on mmaping should wake the gpu */
if (xe_has_vram(device.fd_xe) && flags & DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM)
- igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
+ igt_assert(igt_pm_get_runtime_active_time(device.pci_xe) >
+ active_time);
igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+ active_time = igt_pm_get_runtime_active_time(device.pci_xe);
for (i = 0; i < bo_size / sizeof(*map); i++)
map[i] = MAGIC_2;
if (xe_has_vram(device.fd_xe) && flags & DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM)
- igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
+ igt_assert(igt_pm_get_runtime_active_time(device.pci_xe) >
+ active_time);
igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
--
2.44.0
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