static int __pxp_global_teardown_final(struct intel_pxp *pxp)
{
+ int timeout;
+
if (!pxp->arb_is_valid)
return 0;
/*
intel_pxp_mark_termination_in_progress(pxp);
intel_pxp_terminate(pxp, false);
- if (!wait_for_completion_timeout(&pxp->termination, msecs_to_jiffies(250)))
+ if (HAS_ENGINE(pxp->ctrl_gt, GSC0))
+ timeout = GSCFW_MAX_ROUND_TRIP_LATENCY_MS;
+ else
+ timeout = 250;
+
+ if (!wait_for_completion_timeout(&pxp->termination, msecs_to_jiffies(timeout)))
return -ETIMEDOUT;
return 0;
static int __pxp_global_teardown_restart(struct intel_pxp *pxp)
{
+ int timeout;
+
if (pxp->arb_is_valid)
return 0;
/*
*/
pxp_queue_termination(pxp);
- if (!wait_for_completion_timeout(&pxp->termination, msecs_to_jiffies(250)))
+ if (HAS_ENGINE(pxp->ctrl_gt, GSC0))
+ timeout = GSCFW_MAX_ROUND_TRIP_LATENCY_MS;
+ else
+ timeout = 250;
+
+ if (!wait_for_completion_timeout(&pxp->termination, msecs_to_jiffies(timeout)))
return -ETIMEDOUT;
return 0;
if (!intel_pxp_is_enabled(pxp))
return -ENODEV;
- if (wait_for(pxp_component_bound(pxp), 250))
- return -ENXIO;
+ if (HAS_ENGINE(pxp->ctrl_gt, GSC0)) {
+ if (wait_for(intel_pxp_gsccs_is_ready_for_sessions(pxp), 250))
+ return -ENXIO;
+ } else {
+ if (wait_for(pxp_component_bound(pxp), 250))
+ return -ENXIO;
+ }
mutex_lock(&pxp->arb_mutex);
#include "gem/i915_gem_internal.h"
#include "gt/intel_context.h"
+#include "gt/uc/intel_gsc_fw.h"
#include "gt/uc/intel_gsc_uc_heci_cmd_submit.h"
#include "i915_drv.h"
+#include "intel_pxp_cmd_interface_42.h"
#include "intel_pxp_cmd_interface_43.h"
#include "intel_pxp_gsccs.h"
#include "intel_pxp_types.h"
+static bool
+is_fw_err_platform_config(u32 type)
+{
+ switch (type) {
+ case PXP_STATUS_ERROR_API_VERSION:
+ case PXP_STATUS_PLATFCONFIG_KF1_NOVERIF:
+ case PXP_STATUS_PLATFCONFIG_KF1_BAD:
+ return true;
+ default:
+ break;
+ }
+ return false;
+}
+
+static const char *
+fw_err_to_string(u32 type)
+{
+ switch (type) {
+ case PXP_STATUS_ERROR_API_VERSION:
+ return "ERR_API_VERSION";
+ case PXP_STATUS_NOT_READY:
+ return "ERR_NOT_READY";
+ case PXP_STATUS_PLATFCONFIG_KF1_NOVERIF:
+ case PXP_STATUS_PLATFCONFIG_KF1_BAD:
+ return "ERR_PLATFORM_CONFIG";
+ default:
+ break;
+ }
+ return NULL;
+}
+
static int
gsccs_send_message(struct intel_pxp *pxp,
void *msg_in, size_t msg_in_size,
return ret;
}
+bool intel_pxp_gsccs_is_ready_for_sessions(struct intel_pxp *pxp)
+{
+ /*
+ * GSC-fw loading, HuC-fw loading, HuC-fw authentication and
+ * GSC-proxy init flow (requiring an mei component driver)
+ * must all occur first before we can start requesting for PXP
+ * sessions. Checking for completion on HuC authentication and
+ * gsc-proxy init flow (the last set of dependencies that
+ * are out of order) will suffice.
+ */
+ if (intel_huc_is_authenticated(&pxp->ctrl_gt->uc.huc) &&
+ intel_gsc_uc_fw_proxy_init_done(&pxp->ctrl_gt->uc.gsc))
+ return true;
+
+ return false;
+}
+
+int intel_pxp_gsccs_create_session(struct intel_pxp *pxp,
+ int arb_session_id)
+{
+ struct drm_i915_private *i915 = pxp->ctrl_gt->i915;
+ struct pxp43_create_arb_in msg_in = {0};
+ struct pxp43_create_arb_out msg_out = {0};
+ int ret;
+
+ msg_in.header.api_version = PXP_APIVER(4, 3);
+ msg_in.header.command_id = PXP43_CMDID_INIT_SESSION;
+ msg_in.header.stream_id = (FIELD_PREP(PXP43_INIT_SESSION_APPID, arb_session_id) |
+ FIELD_PREP(PXP43_INIT_SESSION_VALID, 1) |
+ FIELD_PREP(PXP43_INIT_SESSION_APPTYPE, 0));
+ msg_in.header.buffer_len = sizeof(msg_in) - sizeof(msg_in.header);
+ msg_in.protection_mode = PXP43_INIT_SESSION_PROTECTION_ARB;
+
+ ret = gsccs_send_message_retry_complete(pxp,
+ &msg_in, sizeof(msg_in),
+ &msg_out, sizeof(msg_out), NULL);
+ if (ret) {
+ 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(msg_out.header.status)) {
+ 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,
+ fw_err_to_string(msg_out.header.status));
+ } else {
+ drm_dbg(&i915->drm, "PXP init-session-%d failed 0x%08x:%st:\n",
+ arb_session_id, msg_out.header.status,
+ fw_err_to_string(msg_out.header.status));
+ drm_dbg(&i915->drm, " cmd-detail: ID=[0x%08x],API-Ver-[0x%08x]\n",
+ msg_in.header.command_id, msg_in.header.api_version);
+ }
+ }
+
+ return ret;
+}
+
+void intel_pxp_gsccs_end_arb_fw_session(struct intel_pxp *pxp, u32 session_id)
+{
+ struct drm_i915_private *i915 = pxp->ctrl_gt->i915;
+ struct pxp42_inv_stream_key_in msg_in = {0};
+ struct pxp42_inv_stream_key_out msg_out = {0};
+ int ret = 0;
+
+ /*
+ * Stream key invalidation reuses the same version 4.2 input/output
+ * command format but firmware requires 4.3 API interaction
+ */
+ msg_in.header.api_version = PXP_APIVER(4, 3);
+ msg_in.header.command_id = PXP42_CMDID_INVALIDATE_STREAM_KEY;
+ msg_in.header.buffer_len = sizeof(msg_in) - sizeof(msg_in.header);
+
+ msg_in.header.stream_id = FIELD_PREP(PXP_CMDHDR_EXTDATA_SESSION_VALID, 1);
+ msg_in.header.stream_id |= FIELD_PREP(PXP_CMDHDR_EXTDATA_APP_TYPE, 0);
+ msg_in.header.stream_id |= FIELD_PREP(PXP_CMDHDR_EXTDATA_SESSION_ID, session_id);
+
+ ret = gsccs_send_message_retry_complete(pxp,
+ &msg_in, sizeof(msg_in),
+ &msg_out, sizeof(msg_out), NULL);
+ if (ret) {
+ drm_err(&i915->drm, "Failed to inv-stream-key-%u, ret=[%d]\n",
+ session_id, ret);
+ } else if (msg_out.header.status != 0) {
+ if (is_fw_err_platform_config(msg_out.header.status)) {
+ 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,
+ fw_err_to_string(msg_out.header.status));
+ } else {
+ drm_dbg(&i915->drm, "PXP inv-stream-key-%u failed 0x%08x:%s:\n",
+ session_id, msg_out.header.status,
+ fw_err_to_string(msg_out.header.status));
+ drm_dbg(&i915->drm, " cmd-detail: ID=[0x%08x],API-Ver-[0x%08x]\n",
+ msg_in.header.command_id, msg_in.header.api_version);
+ }
+ }
+}
+
static void
gsccs_cleanup_fw_host_session_handle(struct intel_pxp *pxp)
{
*
* -ENODEV: feature not available
* -EPERM: trying to mark a recoverable or not bannable context as protected
+ * -ENXIO: A dependency such as a component driver or firmware is not yet
+ * loaded so user space may need to attempt again. Depending on the
+ * device, this error may be reported if protected context creation is
+ * attempted very early after kernel start because the internal timeout
+ * waiting for such dependencies is not guaranteed to be larger than
+ * required (numbers differ depending on system and kernel config):
+ * - ADL/RPL: dependencies may take up to 3 seconds from kernel start
+ * while context creation internal timeout is 250 milisecs
+ * - MTL: dependencies may take up to 8 seconds from kernel start
+ * while context creation internal timeout is 250 milisecs
+ * NOTE: such dependencies happen once, so a subsequent call to create a
+ * protected context after a prior successful call will not experience
+ * such timeouts and will not return -ENXIO (unless the driver is reloaded,
+ * or, depending on the device, resumes from a suspended state).
+ * -EIO: The firmware did not succeed in creating the protected context.
*/
#define I915_CONTEXT_PARAM_PROTECTED_CONTENT 0xd
/* Must be kept compact -- no holes and well documented */
git.samba.org / sfrench / cifs-2.6.git / commitdiff