From: Riana Tauro <riana.tauro@intel.com>
To: intel-xe@lists.freedesktop.org
Cc: riana.tauro@intel.com, anshuman.gupta@intel.com,
rodrigo.vivi@intel.com, aravind.iddamsetty@linux.intel.com,
badal.nilawar@intel.com, raag.jadav@intel.com,
ravi.kishore.koppuravuri@intel.com, mallesh.koujalagi@intel.com,
soham.purkait@intel.com,
Tejas Upadhyay <tejas.upadhyay@intel.com>,
Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Subject: [PATCH v4 10/13] drm/xe/xe_ras: Add support to offline/decline a page
Date: Fri, 17 Apr 2026 14:28:22 +0530 [thread overview]
Message-ID: <20260417085812.4013309-25-riana.tauro@intel.com> (raw)
In-Reply-To: <20260417085812.4013309-15-riana.tauro@intel.com>
Add a helper function that sends commands to system controller
to offline/decline a page based on user policy.
Cc: Tejas Upadhyay <tejas.upadhyay@intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Signed-off-by: Riana Tauro <riana.tauro@intel.com>
---
drivers/gpu/drm/xe/xe_ras.c | 51 +++++++++++++++++++
drivers/gpu/drm/xe/xe_ras.h | 2 +
drivers/gpu/drm/xe/xe_ras_types.h | 37 ++++++++++++++
drivers/gpu/drm/xe/xe_sysctrl_mailbox_types.h | 4 +-
4 files changed, 93 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xe/xe_ras.c b/drivers/gpu/drm/xe/xe_ras.c
index 347844b3d2bf..cd1ac6441b92 100644
--- a/drivers/gpu/drm/xe/xe_ras.c
+++ b/drivers/gpu/drm/xe/xe_ras.c
@@ -268,6 +268,57 @@ enum xe_ras_recovery_action xe_ras_process_errors(struct xe_device *xe)
return XE_RAS_RECOVERY_ACTION_RESET;
}
+/**
+ * xe_ras_page_offline() - Send page offline/decline request to system controller
+ * @xe: xe device instance
+ * @action: Action to be performed (offline/decline)
+ * @page_address: address of the page
+ *
+ * Returns: 0 on success, negative error code on failure
+ */
+int xe_ras_page_offline(struct xe_device *xe, enum xe_ras_page_action action, u64 page_address)
+{
+ struct xe_sysctrl_mailbox_command command = {0};
+ struct xe_ras_page_offline_request request = {0};
+ struct xe_ras_page_offline_response response = {0};
+ size_t rlen;
+ int ret;
+
+ if (!xe->info.has_sysctrl)
+ return 0;
+
+ if (action >= XE_RAS_PAGE_ACTION_MAX) {
+ xe_err(xe, "[RAS]: Invalid page offline action %d\n", action);
+ return -EINVAL;
+ }
+
+ request.page_address = page_address;
+ request.action = action;
+
+ prepare_sysctrl_command(&command, XE_SYSCTRL_CMD_PAGE_OFFLINE, &request,
+ sizeof(request), &response, sizeof(response));
+
+ ret = xe_sysctrl_send_command(&xe->sc, &command, &rlen);
+ if (ret) {
+ xe_err(xe, "[RAS]: sysctrl: error ret %d\n", ret);
+ return ret;
+ }
+
+ if (rlen != sizeof(response)) {
+ xe_err(xe, "[RAS]: sysctrl: response size mismatch. Expected %zu, got %zu\n",
+ sizeof(response), rlen);
+ return -EINVAL;
+ }
+
+ if (response.status) {
+ xe_err(xe, "[RAS]: sysctrl: Page offline command failed with status %u\n",
+ response.status);
+ return -EIO;
+ }
+
+ return 0;
+}
+
#ifdef CONFIG_PCIEAER
static void aer_unmask_and_downgrade_internal_error(struct xe_device *xe)
{
diff --git a/drivers/gpu/drm/xe/xe_ras.h b/drivers/gpu/drm/xe/xe_ras.h
index e191ab80080c..ec59258eb3df 100644
--- a/drivers/gpu/drm/xe/xe_ras.h
+++ b/drivers/gpu/drm/xe/xe_ras.h
@@ -12,5 +12,7 @@ struct xe_device;
void xe_ras_init(struct xe_device *xe);
enum xe_ras_recovery_action xe_ras_process_errors(struct xe_device *xe);
+int xe_ras_page_offline(struct xe_device *xe, enum xe_ras_page_action action,
+ u64 page_address);
#endif
diff --git a/drivers/gpu/drm/xe/xe_ras_types.h b/drivers/gpu/drm/xe/xe_ras_types.h
index 020e3f92a057..d76310866da5 100644
--- a/drivers/gpu/drm/xe/xe_ras_types.h
+++ b/drivers/gpu/drm/xe/xe_ras_types.h
@@ -30,6 +30,19 @@ enum xe_ras_recovery_action {
XE_RAS_RECOVERY_ACTION_MAX
};
+/**
+ * enum xe_ras_page_action - Page offline actions for page offline request
+ *
+ * @XE_RAS_PAGE_ACTION_OFFLINE: Instruct firmware to remove page from queue
+ * @XE_RAS_PAGE_ACTION_DECLINE: Instruct firmware to mark page as not offline
+ * @XE_RAS_PAGE_ACTION_MAX: Max value for validation
+ */
+enum xe_ras_page_action {
+ XE_RAS_PAGE_ACTION_OFFLINE,
+ XE_RAS_PAGE_ACTION_DECLINE,
+ XE_RAS_PAGE_ACTION_MAX
+};
+
/**
* struct xe_ras_error_common - Common RAS error class
*
@@ -260,4 +273,28 @@ struct xe_ras_memory_error {
/** @reserved2: Reserved for future use */
u32 reserved2[2];
} __packed;
+
+/**
+ * struct xe_ras_page_offline_request - Request for page offline command
+ *
+ * This structure provides the request format to offline/decline a page
+ */
+struct xe_ras_page_offline_request {
+ /** @page_address: Page address (4KB aligned) */
+ u64 page_address;
+ /** @action: Action to be performed (enum xe_ras_page_action) */
+ u32 action;
+ /** @reserved: Reserved for future use */
+ u32 reserved;
+} __packed;
+
+/**
+ * struct xe_ras_page_offline_response - Response from page offline command
+ */
+struct xe_ras_page_offline_response {
+ /** @status: Status of the page offline request */
+ u32 status;
+ /** @reserved: Reserved for future use */
+ u32 reserved;
+} __packed;
#endif
diff --git a/drivers/gpu/drm/xe/xe_sysctrl_mailbox_types.h b/drivers/gpu/drm/xe/xe_sysctrl_mailbox_types.h
index 00a0f05aab32..2cafa8a14cc3 100644
--- a/drivers/gpu/drm/xe/xe_sysctrl_mailbox_types.h
+++ b/drivers/gpu/drm/xe/xe_sysctrl_mailbox_types.h
@@ -14,9 +14,11 @@
* enum xe_sysctrl_mailbox_command_id - Command ID's for GFSP group
*
* @XE_SYSCTRL_CMD_GET_SOC_ERROR: Get basic error information
+ * @XE_SYSCTRL_CMD_PAGE_OFFLINE: Instruct firmware to offline/decline a page
*/
enum xe_sysctrl_mailbox_command_id {
- XE_SYSCTRL_CMD_GET_SOC_ERROR = 0x01
+ XE_SYSCTRL_CMD_GET_SOC_ERROR = 0x01,
+ XE_SYSCTRL_CMD_PAGE_OFFLINE = 0x08
};
enum xe_sysctrl_group {
--
2.47.1
next prev parent reply other threads:[~2026-04-17 8:26 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-17 8:58 [PATCH v4 00/13] Introduce Xe Uncorrectable Error Handling Riana Tauro
2026-04-17 8:58 ` [PATCH v4 01/13] drm/xe/xe_survivability: Decouple survivability info from boot survivability Riana Tauro
2026-04-17 8:58 ` [PATCH v4 02/13] drm/xe/xe_pci_error: Implement PCI error recovery callbacks Riana Tauro
2026-04-27 6:35 ` Raag Jadav
2026-05-06 13:59 ` Tauro, Riana
2026-04-17 8:58 ` [PATCH v4 03/13] drm/xe/xe_pci_error: Group all devres to release them on PCIe slot reset Riana Tauro
2026-04-17 8:58 ` [PATCH v4 04/13] drm/xe: Skip device access during PCI error recovery Riana Tauro
2026-04-30 12:58 ` Anshuman Gupta
2026-05-06 15:41 ` Tauro, Riana
2026-04-17 8:58 ` [PATCH v4 05/13] drm/xe/xe_ras: Initialize Uncorrectable AER Registers Riana Tauro
2026-04-27 7:56 ` Raag Jadav
2026-05-05 5:22 ` Tauro, Riana
2026-04-17 8:58 ` [PATCH v4 06/13] drm/xe/xe_ras: Add basic structures and commands for uncorrectable errors Riana Tauro
2026-04-17 17:38 ` Matt Roper
2026-04-17 21:25 ` Jadav, Raag
2026-04-17 21:32 ` Matt Roper
2026-04-20 5:34 ` Tauro, Riana
2026-04-20 7:49 ` Raag Jadav
2026-04-17 8:58 ` [PATCH v4 07/13] drm/xe/xe_ras: Add support for uncorrectable core-compute errors Riana Tauro
2026-04-27 8:24 ` Raag Jadav
2026-05-05 5:28 ` Tauro, Riana
2026-04-17 8:58 ` [PATCH v4 08/13] drm/xe/xe_ras: Handle uncorrectable SoC Internal errors Riana Tauro
2026-04-17 8:58 ` [PATCH v4 09/13] drm/xe/xe_ras: Handle uncorrectable device memory errors Riana Tauro
2026-04-21 6:08 ` Upadhyay, Tejas
2026-05-05 5:03 ` Tauro, Riana
2026-04-17 8:58 ` Riana Tauro [this message]
2026-04-21 6:21 ` [PATCH v4 10/13] drm/xe/xe_ras: Add support to offline/decline a page Upadhyay, Tejas
2026-05-05 5:16 ` Tauro, Riana
2026-04-17 8:58 ` [PATCH v4 11/13] drm/xe/xe_ras: Add support for page offline list and queue commands Riana Tauro
2026-04-21 6:19 ` Upadhyay, Tejas
2026-05-05 5:08 ` Tauro, Riana
2026-04-21 9:10 ` Upadhyay, Tejas
2026-05-05 5:17 ` Tauro, Riana
2026-04-17 8:58 ` [PATCH v4 12/13] drm/xe/xe_ras: Query errors from system controller on probe Riana Tauro
2026-04-28 11:46 ` Raag Jadav
2026-05-05 13:50 ` Tauro, Riana
2026-04-17 8:58 ` [PATCH v4 13/13] drm/xe/xe_pci_error: Process errors in mmio_enabled Riana Tauro
2026-04-28 11:39 ` Raag Jadav
2026-05-05 5:31 ` Tauro, Riana
2026-04-30 11:15 ` Gupta, Anshuman
2026-05-02 17:55 ` Raag Jadav
2026-04-20 13:33 ` ✗ CI.checkpatch: warning for Introduce Xe Uncorrectable Error Handling (rev4) Patchwork
2026-04-20 13:35 ` ✓ CI.KUnit: success " Patchwork
2026-04-20 14:42 ` ✓ Xe.CI.BAT: " Patchwork
2026-04-20 17:14 ` ✗ Xe.CI.FULL: failure " Patchwork
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