From: "Huang, Sean Z" <sean.z.huang@intel.com>
To: Intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [RFC-v3 13/26] drm/i915/pxp: Enable ioctl action to query PXP tag
Date: Tue, 1 Dec 2020 15:33:58 -0800 [thread overview]
Message-ID: <20201201233411.21858-14-sean.z.huang@intel.com> (raw)
In-Reply-To: <20201201233411.21858-1-sean.z.huang@intel.com>
Enable the PXP ioctl action to allow user space driver to query the
PXP tag, which is a 32-bit bitwise value indicating the current
session info, including protection type, session id, and whether
the session is enabled.
Signed-off-by: Huang, Sean Z <sean.z.huang@intel.com>
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 7 +++++++
drivers/gpu/drm/i915/pxp/intel_pxp.h | 7 +++++++
drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 20 ++++++++++++++++++++
drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 3 +++
4 files changed, 37 insertions(+)
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c
index 3856e1060d11..969f3fdf0804 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c
@@ -70,6 +70,13 @@ int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmf
}
break;
}
+ case PXP_ACTION_QUERY_PXP_TAG:
+ {
+ struct pxp_sm_query_pxp_tag *params = &pxp_info.query_pxp_tag;
+
+ ret = pxp_sm_ioctl_query_pxp_tag(i915, ¶ms->session_is_alive, ¶ms->pxp_tag);
+ break;
+ }
case PXP_ACTION_SET_USER_CONTEXT:
{
ret = intel_pxp_set_user_ctx(i915, pxp_info.set_user_ctx);
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h
index ed77630bb7c4..9ba17c620ea2 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h
@@ -31,6 +31,7 @@ enum pxp_sm_session_req {
};
enum pxp_ioctl_action {
+ PXP_ACTION_QUERY_PXP_TAG = 0,
PXP_ACTION_SET_SESSION_STATUS = 1,
PXP_ACTION_SET_USER_CONTEXT = 5,
};
@@ -42,6 +43,11 @@ enum pxp_sm_status {
PXP_SM_STATUS_ERROR_UNKNOWN
};
+struct pxp_sm_query_pxp_tag {
+ u32 session_is_alive;
+ u32 pxp_tag; /* in - Session ID, out pxp tag */
+};
+
struct pxp_sm_set_session_status_params {
/** @pxp_tag: in [optional], for Arbitrator session, out pxp tag */
u32 pxp_tag;
@@ -57,6 +63,7 @@ struct pxp_info {
u32 action;
u32 sm_status;
union {
+ struct pxp_sm_query_pxp_tag query_pxp_tag;
struct pxp_sm_set_session_status_params set_session_status;
u32 set_user_ctx;
};
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c
index 65b89728251d..fdfb366d7472 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.c
@@ -970,6 +970,26 @@ int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int
return ret;
}
+int pxp_sm_ioctl_query_pxp_tag(struct drm_i915_private *i915, u32 *session_is_alive, u32 *pxp_tag)
+{
+ int session_type = 0;
+ int session_index = 0;
+ int ret;
+
+ if (!session_is_alive || !pxp_tag)
+ return -EINVAL;
+
+ ret = pxp_get_session_index(i915, *pxp_tag, &session_index, &session_type);
+ if (ret) {
+ drm_err(&i915->drm, "Failed to __pxpsessionid_to_sessionid\n");
+ return ret;
+ }
+
+ *pxp_tag = intel_pxp_get_pxp_tag(i915, session_index, session_type, session_is_alive);
+end:
+ return 0;
+}
+
int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915)
{
int ret;
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h
index a68e1d109437..7ae001ccb60f 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_sm.h
@@ -109,7 +109,10 @@ int pxp_sm_terminate_protected_session_safe(struct drm_i915_private *i915, int c
int session_type, int session_id);
int pxp_sm_terminate_protected_session_unsafe(struct drm_i915_private *i915, int session_type,
int session_id);
+int pxp_sm_ioctl_query_pxp_tag(struct drm_i915_private *i915, u32 *session_is_alive, u32 *pxp_tag);
int pxp_sm_set_kcr_init_reg(struct drm_i915_private *i915);
+u32 intel_pxp_get_pxp_tag(struct drm_i915_private *i915, int session_idx,
+ int session_type, u32 *session_is_alive);
bool intel_pxp_sm_is_any_type0_session_in_play(struct drm_i915_private *i915, int protection_mode);
#endif /* __INTEL_PXP_SM_H__ */
--
2.17.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2020-12-01 23:35 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-01 23:33 [Intel-gfx] [RFC-v3 00/26] Introduce Intel PXP component Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 01/26] drm/i915/pxp: " Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 02/26] drm/i915/pxp: Enable PXP irq worker and callback stub Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 03/26] drm/i915/pxp: Add PXP context for logical hardware states Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 04/26] drm/i915/pxp: set KCR reg init during the boot time Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 05/26] drm/i915/pxp: Implement ioctl action to set the user space context Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 06/26] drm/i915/pxp: Add PXP-related registers into allowlist Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 07/26] drm/i915/pxp: Read register to check hardware session state Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 08/26] drm/i915/pxp: Implement funcs to get/set PXP tag Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 09/26] drm/i915/pxp: Implement ioctl action to reserve session slot Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 10/26] drm/i915/pxp: Implement ioctl action to set session in play Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 11/26] drm/i915/pxp: Func to send hardware session termination Huang, Sean Z
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 12/26] drm/i915/pxp: Implement ioctl action to terminate the session Huang, Sean Z
2020-12-01 23:33 ` Huang, Sean Z [this message]
2020-12-01 23:33 ` [Intel-gfx] [RFC-v3 14/26] drm/i915/pxp: Destroy all type0 sessions upon teardown Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 15/26] drm/i915/pxp: Termiante the session upon app crash Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 16/26] drm/i915/pxp: Enable PXP power management Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 17/26] drm/i915/pxp: Implement funcs to create the TEE channel Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 18/26] drm/i915/pxp: Implement ioctl action to send TEE commands Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 19/26] drm/i915/pxp: Create the arbitrary session after boot Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 20/26] drm/i915/pxp: Add i915 trace logs for PXP operations Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 21/26] drm/i915/pxp: Expose session state for display protection flip Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 22/26] mei: pxp: export pavp client to me client bus Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 23/26] drm/i915/uapi: introduce drm_i915_gem_create_ext Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 24/26] drm/i915/pxp: User interface for Protected buffer Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 25/26] drm/i915/pxp: Add plane decryption support Huang, Sean Z
2020-12-01 23:34 ` [Intel-gfx] [RFC-v3 26/26] drm/i915/pxp: Enable the PXP ioctl for protected session Huang, Sean Z
2020-12-01 23:42 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Introduce Intel PXP component (rev2) Patchwork
2020-12-01 23:57 [Intel-gfx] [RFC-v3 00/26] Introduce Intel PXP component Huang, Sean Z
2020-12-01 23:57 ` [Intel-gfx] [RFC-v3 13/26] drm/i915/pxp: Enable ioctl action to query PXP tag Huang, Sean Z
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201201233411.21858-14-sean.z.huang@intel.com \
--to=sean.z.huang@intel.com \
--cc=Intel-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.