the power cycle.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/gt/intel_gt_pm.c| 4 ++
drivers/gpu/drm/i915/i915_drv.c | 4 ++
drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 1 +
drivers/gpu/drm/i915/pxp
From: Bommu Krishnaiah
This api allow user mode to create Protected buffer and context creation.
Signed-off-by: Bommu Krishnaiah
Cc: Telukuntla Sreedhar
Cc: Kondapally Kalyan
Cc: Gupta Anshuman
Cc: Huang Sean Z
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 15 ++--
drivers
#14 to fix
the build problem.
Anshuman Gupta (1):
drm/i915/pxp: Add plane decryption support
Bommu Krishnaiah (2):
drm/i915/uapi: introduce drm_i915_gem_create_ext
drm/i915/pxp: User interface for Protected buffer
Huang, Sean Z (17):
drm/i915/pxp: Introduce Intel PXP component
drm/i91
Implement the functions to allow PXP to send a GPU command, in
order to terminate the hardware session, so hardware can recycle
this session slot for the next usage.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 156
Implement the funcs to create the TEE channel, so kernel can
send the TEE commands directly to TEE for creating the arbitrary
(defualt) session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 3 +-
drivers/gpu/drm/i915/i915_drv.c | 1 +
drivers/gpu/drm
(a.k.a default session or
arbitrary session). So Mesa can allocate the protected buffer,
which is encrypted with the leverage of the arbitrary hardware
session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Kconfig | 19 +
drivers/gpu/drm/i915/Makefile
Implement the PXP ioctl action to allow userspace driver to
terminate the hardware session and cleanup its software session
state. PXP sends the session termination command to GPU once
receves this ioctl action.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 10
needs to be re-created after
teardown or power event because hardware encryption key won't be
valid after such cases.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.h
Enable the PXP ioctl action to allow userspace 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
---
drivers/gpu/drm/i915/pxp/intel_pxp.c
Teardown is triggered when the display topology changes and no
long meets the secure playback requirement, and hardware trashes
all the encryption keys for display. So as a result, PXP should
handle such case and terminate the type0 sessions, which including
arb session
Signed-off-by: Huang, Sean
the power cycle.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/gt/intel_gt_pm.c| 4 ++
drivers/gpu/drm/i915/i915_drv.c | 4 ++
drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 1 +
drivers/gpu/drm/i915/pxp
From: Vitaly Lubart
Export PAVP client to work with i915_cp driver,
for binding it uses kernel component framework.
Signed-off-by: Vitaly Lubart
Signed-off-by: Tomas Winkler
---
drivers/misc/mei/Kconfig | 2 +
drivers/misc/mei/Makefile | 1 +
drivers/misc/mei/pxp/Kconfig |
With this ioctl action, userspace driver can reserve one or
multiple session slot/id assigned by kernel PXP, as the first
step of PXP session establishment flow. The session info is
stored in the session list structure.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile
PXP should terminate the hardware session and cleanup the software
state gracefully when the application has established the
protection session, but doesn't close the session correctly due to
some cases like application crash.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/i915_drv.c
From: Bommu Krishnaiah
Same old gem_create but with now with extensions support. This is needed
to support various upcoming usecases. For now we use the extensions
mechanism to support PAVP.
Signed-off-by: Bommu Krishnaiah
Signed-off-by: Matthew Auld
Cc: Joonas Lahtinen
Implement the ioctl action to allow userspace driver sends TEE
commands via PXP ioctl, instead of TEE iotcl. So we can
centralize those protection operations at PXP.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 48 +---
drivers/gpu/drm/i915/pxp
In the previous commits, we have implemented the PXP ioctl
functions. Now we enable those handlers and expose them as PXP
ioctl, so allow the userspace driver can establish, set, or
destory the protected session via this ioctl.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/i915_drv.c
user_flags instead gem_object_metadata. [Krishna]
Cc: Bommu Krishnaiah
Cc: Huang, Sean Z
Signed-off-by: Anshuman Gupta
---
drivers/gpu/drm/i915/display/intel_sprite.c | 21 ++---
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 19 insertions(+), 3 deletions
From: Bommu Krishnaiah
This api allow user mode to create Protected buffer and context creation.
Signed-off-by: Bommu Krishnaiah
Cc: Telukuntla Sreedhar
Cc: Kondapally Kalyan
Cc: Gupta Anshuman
Cc: Huang Sean Z
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 15 ++--
drivers
Implement the PXP ioctl action to allow userspace driver to
terminate the hardware session and cleanup its software session
state. PXP sends the session termination command to GPU once
receves this ioctl action.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 10
Implement the functions to allow PXP to send a GPU command, in
order to terminate the hardware session, so hardware can recycle
this session slot for the next usage.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 156
Implement the funcs to create the TEE channel, so kernel can
send the TEE commands directly to TEE for creating the arbitrary
(defualt) session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 3 +-
drivers/gpu/drm/i915/i915_drv.c | 1 +
drivers/gpu/drm
Add several PXP-related reg into allowlist to allow user space
driver to read the those register values.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/i915_reg.h | 6
drivers/gpu/drm/i915/intel_uncore.c | 50 -
2 files changed, 41 insertions(+), 15
Implement the intel_pxp_gem_object_status() to allow i915 display
querying the current PXP session state. In the design, display
should not perform protection flip on the protected buffers if
there is no PXP session alive.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c
is ready for secure playback.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c| 11 +-
drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 51 +
drivers/gpu/drm/i915/pxp/intel_pxp_sm.h | 2 +
3 files changed, 63 insertions(+), 1 deletion(-)
diff --git a/
/i915/uapi: introduce drm_i915_gem_create_ext
drm/i915/pxp: User interface for Protected buffer
Huang, Sean Z (17):
drm/i915/pxp: Introduce Intel PXP component
drm/i915/pxp: set KCR reg init during the boot time
drm/i915/pxp: Implement funcs to create the TEE channel
drm/i915/pxp: Create
(a.k.a default session or
arbitrary session). So Mesa can allocate the protected buffer,
which is encrypted with the leverage of the arbitrary hardware
session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Kconfig | 19 +
drivers/gpu/drm/i915/Makefile
Create the irq worker that serves as callback handler, those
callback stubs should be called while the hardware key teardown
occurs.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/gt/intel_gt_irq.c | 4 +
drivers/gpu/drm/i915/i915_reg.h | 3 +-
drivers/gpu/drm/i915
Set the KCR init during the boot time, which is
required by hardware, to allow us doing further
protection operation such as sending commands to
GPU or TEE.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 8
1 file changed, 8 insertions(+)
diff --git a/drivers
needs to be re-created after
teardown or power event because hardware encryption key won't be
valid after such cases.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.h
Yes, you're correct. I missed this one and it
should be removed from this commit.
Best regards,
Sean
-Original Message-
From: Rodrigo Vivi
Sent: Wednesday, December 9, 2020 10:08 AM
To: Huang, Sean Z
Cc: Intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [RFC-v3 02/13] drm/i915/
rigo Vivi
Sent: Wednesday, December 9, 2020 10:06 AM
To: Huang, Sean Z
Cc: Intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [RFC-v3 01/13] drm/i915/pxp: Introduce Intel PXP
component
On Tue, Dec 08, 2020 at 11:02:55PM -0800, Huang, Sean Z wrote:
> PXP (Protected Xe Path) is an i915 co
user_flags instead gem_object_metadata. [Krishna]
Cc: Bommu Krishnaiah
Cc: Huang, Sean Z
Signed-off-by: Anshuman Gupta
---
drivers/gpu/drm/i915/display/intel_sprite.c | 21 ++---
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 19 insertions(+), 3 deletions
From: Vitaly Lubart
Export PAVP client to work with i915_cp driver,
for binding it uses kernel component framework.
Signed-off-by: Vitaly Lubart
Signed-off-by: Tomas Winkler
---
drivers/misc/mei/Kconfig | 2 +
drivers/misc/mei/Makefile | 1 +
drivers/misc/mei/pxp/Kconfig |
Implement the functions to allow PXP to send a GPU command, in
order to terminate the hardware session, so hardware can recycle
this session slot for the next usage.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 156
the power cycle.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/gt/intel_gt_pm.c| 4 ++
drivers/gpu/drm/i915/i915_drv.c | 4 ++
drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 1 +
drivers/gpu/drm/i915/pxp
From: Bommu Krishnaiah
This api allow user mode to create Protected buffer and context creation.
Signed-off-by: Bommu Krishnaiah
Cc: Telukuntla Sreedhar
Cc: Kondapally Kalyan
Cc: Gupta Anshuman
Cc: Huang Sean Z
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 15 ++--
drivers
needs to be re-created after
teardown or power event because hardware encryption key won't be
valid after such cases.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.h
Implement the funcs to create the TEE channel, so kernel can
send the TEE commands directly to TEE for creating the arbitrary
(defualt) session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 3 +-
drivers/gpu/drm/i915/i915_drv.c | 1 +
drivers/gpu/drm
Create the irq worker that serves as callback handler, those
callback stubs should be called while the hardware key teardown
occurs.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/gt/intel_gt_irq.c | 4 +
drivers/gpu/drm/i915/i915_reg.h | 3 +-
drivers/gpu/drm/i915
Set the KCR init during the boot time, which is
required by hardware, to allow us doing further
protection operation such as sending commands to
GPU or TEE.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 8
drivers/gpu/drm/i915/pxp/intel_pxp.h | 6 ++
2
Implement the intel_pxp_gem_object_status() to allow i915 display
querying the current PXP session state. In the design, display
should not perform protection flip on the protected buffers if
there is no PXP session alive.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c
Teardown is triggered when the display topology changes and no
long meets the secure playback requirement, and hardware trashes
all the encryption keys for display. So as a result, PXP should
handle such case and terminate the type0 sessions, which including
arb session
Signed-off-by: Huang, Sean
(a.k.a default session or
arbitrary session). So Mesa can allocate the protected buffer,
which is encrypted with the leverage of the arbitrary hardware
session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Kconfig | 19 +
drivers/gpu/drm/i915/Makefile
buffer
Huang, Sean Z (9):
drm/i915/pxp: Introduce Intel PXP component
drm/i915/pxp: set KCR reg init during the boot time
drm/i915/pxp: Implement funcs to create the TEE channel
drm/i915/pxp: Create the arbitrary session after boot
drm/i915/pxp: Func to send hardware session termination
From: Bommu Krishnaiah
Same old gem_create but with now with extensions support. This is needed
to support various upcoming usecases. For now we use the extensions
mechanism to support PAVP.
Signed-off-by: Bommu Krishnaiah
Signed-off-by: Matthew Auld
Cc: Joonas Lahtinen
(a.k.a default session or
arbitrary session). So Mesa can allocate the protected buffer,
which is encrypted with the leverage of the arbitrary hardware
session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Kconfig | 19 +
drivers/gpu/drm/i915/Makefile
the pxp init call from i915_drv.c to intel_gt.c
- reove the tautology naming
Anshuman Gupta (1):
drm/i915/pxp: Add plane decryption support
Bommu Krishnaiah (2):
drm/i915/uapi: introduce drm_i915_gem_create_ext
drm/i915/pxp: User interface for Protected buffer
Huang, Sean Z (9):
drm/i915
From: Bommu Krishnaiah
This api allow user mode to create Protected buffer and context creation.
Signed-off-by: Bommu Krishnaiah
Cc: Telukuntla Sreedhar
Cc: Kondapally Kalyan
Cc: Gupta Anshuman
Cc: Huang Sean Z
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 15 ++--
drivers
user_flags instead gem_object_metadata. [Krishna]
Cc: Bommu Krishnaiah
Cc: Huang, Sean Z
Signed-off-by: Anshuman Gupta
---
drivers/gpu/drm/i915/display/intel_sprite.c | 21 ++---
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 19 insertions(+), 3 deletions
the power cycle.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/gt/intel_gt_pm.c| 4 ++
drivers/gpu/drm/i915/i915_drv.c | 4 ++
drivers/gpu/drm/i915/pxp/intel_pxp_context.h | 1 +
drivers/gpu/drm/i915/pxp
Implement the intel_pxp_gem_object_status() to allow i915 display
querying the current PXP session state. In the design, display
should not perform protection flip on the protected buffers if
there is no PXP session alive.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c
From: Vitaly Lubart
Export PAVP client to work with i915_cp driver,
for binding it uses kernel component framework.
Signed-off-by: Vitaly Lubart
Signed-off-by: Tomas Winkler
---
drivers/misc/mei/Kconfig | 2 +
drivers/misc/mei/Makefile | 1 +
drivers/misc/mei/pxp/Kconfig |
Create the irq worker that serves as callback handler, those
callback stubs should be called while the hardware key teardown
occurs.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/gt/intel_gt_irq.c | 4 +
drivers/gpu/drm/i915/i915_debugfs.c | 2 +-
drivers/gpu/drm/i915
From: Bommu Krishnaiah
Same old gem_create but with now with extensions support. This is needed
to support various upcoming usecases. For now we use the extensions
mechanism to support PAVP.
Signed-off-by: Bommu Krishnaiah
Signed-off-by: Matthew Auld
Cc: Joonas Lahtinen
Teardown is triggered when the display topology changes and no
long meets the secure playback requirement, and hardware trashes
all the encryption keys for display. So as a result, PXP should
handle such case and terminate the type0 sessions, which including
arb session
Signed-off-by: Huang, Sean
Implement the funcs to create the TEE channel, so kernel can
send the TEE commands directly to TEE for creating the arbitrary
(defualt) session.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 3 +-
drivers/gpu/drm/i915/i915_drv.c | 1 +
drivers/gpu/drm
needs to be re-created after
teardown or power event because hardware encryption key won't be
valid after such cases.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.c | 1 +
drivers/gpu/drm/i915/pxp/intel_pxp.h
Implement the functions to allow PXP to send a GPU command, in
order to terminate the hardware session, so hardware can recycle
this session slot for the next usage.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 1 +
drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c | 156
Set the KCR init during the boot time, which is
required by hardware, to allow us doing further
protection operation such as sending commands to
GPU or TEE.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 8
drivers/gpu/drm/i915/pxp/intel_pxp.h | 6 ++
2
or them.
Please share some source code or example commit doing so if it's necessary.
Thanks.
Best regards,
Sean
-Original Message-
From: Joonas Lahtinen
Sent: Monday, December 7, 2020 4:21 AM
To: Huang, Sean Z ; Intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [RFC-v1 09/16] drm
I have removed the dead code that specific for multi-session, and will upload
the new version soon.
-Original Message-
From: Joonas Lahtinen
Sent: Monday, December 7, 2020 4:01 AM
To: Huang, Sean Z ; Intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [RFC-v1 08/16] drm/i915/pxp
Thanks, Yes for single session there is no ioctl exposed so I correct the
commit description.
Best regards,
Sean
-Original Message-
From: Joonas Lahtinen
Sent: Monday, December 7, 2020 3:56 AM
To: Huang, Sean Z ; Intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [RFC-v1 07/16
--Original Message-
From: Joonas Lahtinen
Sent: Monday, December 7, 2020 3:11 AM
To: Huang, Sean Z ; Intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [RFC-v1 04/16] drm/i915/pxp: set KCR reg init during
the boot time
Quoting Huang, Sean Z (2020-12-07 02:21:22)
> Set the KCR init d
Hi Joonas,
Yes, I have removed this commit for single session patch series.
-Original Message-
From: Joonas Lahtinen
Sent: Monday, December 7, 2020 3:52 AM
To: Huang, Sean Z ; Intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [RFC-v1 06/16] drm/i915/pxp: Implement funcs to
get
> will be, so can't recommend better names.
DONE
> In this series, there will be no user space context ID, but only a singleton
> implicit session. So we should not need any tracking code.
DONE
-Original Message-
From: Joonas Lahtinen
Sent: Monday, December 7, 2020 2:51 AM
To: Huang,
way earlier than they
>are used.
>We should be adding the base structs at most and extending them as we add more
>functionality as we go.
DONE, Thanks for capturing this, this enum is for session management only and I
have removed this.
-Original Message-
From: Joonas Lahtinen
Sent:
-Original Message-----
From: Huang, Sean Z
Sent: Monday, December 7, 2020 10:26 AM
To: Joonas Lahtinen ;
Intel-gfx@lists.freedesktop.org
Subject: RE: [Intel-gfx] [RFC-v1 01/16] drm/i915/pxp: Introduce Intel PXP
component
Hi Joonas,
Thanks for the details review. I have apply the modification
lly want to tighten the scope to intel_pxp and call this
> from intel_gt_fini(), so signature should look like: void
> intel_pxp_fini(struct intel_pxp *pxp)
DONE
Best regards,
Sean
-Original Message-
From: Joonas Lahtinen
Sent: Monday, December 7, 2020 2:01 AM
To: Huang, Sean Z ; Int
user_flags instead gem_object_metadata. [Krishna]
Cc: Bommu Krishnaiah
Cc: Huang, Sean Z
Signed-off-by: Anshuman Gupta
---
drivers/gpu/drm/i915/display/intel_sprite.c | 21 ++---
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 19 insertions(+), 3 deletions
needs to be re-created after
teardown or power event because hardware encryption key won't be
valid after such cases.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 47 ++-
drivers/gpu/drm/i915/pxp/intel_pxp.h | 7 +
drivers/gpu/drm/i915/pxp/intel_pxp_sm.c
Add PXP context which represents combined view
of driver and logical HW states.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile| 3 +-
drivers/gpu/drm/i915/pxp/intel_pxp.c | 29 -
drivers/gpu/drm/i915/pxp/intel_pxp.h | 3 ++
drivers
the power cycle.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/i915_drv.c | 8 +++
drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 70 +
drivers/gpu/drm/i915/pxp/intel_pxp_pm.h | 31 +++
4 files changed
Implement the intel_pxp_gem_object_status() to allow i915 display
querying the current PXP session state. In the design, display
should not perform protection flip on the protected buffers if
there is no PXP session alive.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c
Implement the functions to get/set the PXP tag, which is 32-bit
bitwise value containing the hardware session info, such as its
session id, protection mode or whether it's enabled.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 125 ++--
drivers
From: Bommu Krishnaiah
Same old gem_create but with now with extensions support. This is needed
to support various upcoming usecases. For now we use the extensions
mechanism to support PAVP.
Signed-off-by: Bommu Krishnaiah
Signed-off-by: Matthew Auld
Cc: Joonas Lahtinen
From: Vitaly Lubart
Export PAVP client to work with i915_cp driver,
for binding it uses kernel component framework.
Signed-off-by: Vitaly Lubart
Signed-off-by: Tomas Winkler
---
drivers/misc/mei/Kconfig | 2 +
drivers/misc/mei/Makefile | 1 +
drivers/misc/mei/pxp/Kconfig |
Implement the functions to check the hardware protected session
state via reading the hardware register session in play.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.h| 3 +
drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 177
drivers/gpu/drm/i915
Currently ring3 driver sends the TEE commands directly to TEE, but
later, as our design, we would like to make ring3 sending the TEE
commands via the ring0 PXP ioctl action instead of TEE ioctl, so
we can centralize those protection operations at ring0 PXP.
Signed-off-by: Huang, Sean Z
From: Bommu Krishnaiah
This api allow user mode to create Protected buffer and context creation.
Signed-off-by: Bommu Krishnaiah
Cc: Telukuntla Sreedhar
Cc: Kondapally Kalyan
Cc: Gupta Anshuman
Cc: Huang Sean Z
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 15 ++--
drivers
Teardown is triggered when the display topology changes and no
long meets the secure playback requirement, and hardware trashes
all the encryption keys for display. So as a result, PXP should
handle such case and terminate the type0 sessions, which including
arb session
Signed-off-by: Huang, Sean
Set the KCR init during the boot time, which is required by
hardware, to allow us doing further protection operation such
as sending commands to GPU or TEE
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile | 3 +-
drivers/gpu/drm/i915/pxp/intel_pxp.c| 11
Implement the functions to allow PXP to send a GPU command, in
order to terminate the hardware session, so hardware can recycle
this session slot for the next usage.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 150
1 file changed, 150
Create the irq worker that serves as callback handler, those
callback stubs should be called while the hardware key teardown
occurs.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/gt/intel_gt_irq.c | 4 ++
drivers/gpu/drm/i915/i915_reg.h| 1 +
drivers/gpu/drm/i915/pxp
for Protected buffer
Huang, Sean Z (12):
drm/i915/pxp: Introduce Intel PXP component
drm/i915/pxp: Enable PXP irq worker and callback stub
drm/i915/pxp: Add PXP context for logical hardware states.
drm/i915/pxp: set KCR reg init during the boot time
drm/i915/pxp: Read register to check hardware
,
and destroy each session. It will also provide the communication
chanel to TEE (Trusted Execution Environment) for the protected
hardware session creation.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Kconfig | 19
drivers/gpu/drm/i915/Makefile| 4
: Lionel Landwerlin
Sent: Friday, December 4, 2020 6:24 AM
To: Huang, Sean Z ; Intel-gfx@lists.freedesktop.org
Cc: Bommu, Krishnaiah ; Kondapally, Kalyan
Subject: Re: [Intel-gfx] [RFC-v4 24/26] drm/i915/pxp: User interface for
Protected buffer
On 02/12/2020 06:03, Huang, Sean Z wrote:
> F
needs to be re-created after
teardown or power event because hardware encryption key won't be
valid after such cases.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 47 +++-
drivers/gpu/drm/i915/pxp/intel_pxp.h | 7
drivers/gpu/drm/i915
the power cycle.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/Makefile | 1 +
drivers/gpu/drm/i915/i915_drv.c | 8 +++
drivers/gpu/drm/i915/pxp/intel_pxp_pm.c | 72 +
drivers/gpu/drm/i915/pxp/intel_pxp_pm.h | 31 +++
4 files changed
Currently ring3 driver sends the TEE commands directly to TEE, but
later, as our design, we would like to make ring3 sending the TEE
commands via the ring0 PXP ioctl action instead of TEE ioctl, so
we can centralize those protection operations at ring0 PXP.
Signed-off-by: Huang, Sean Z
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
---
drivers/gpu/drm/i915/pxp/intel_pxp.c
Implement the functions to check the hardware protected session
state via reading the hardware register session in play.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.h| 3 +
drivers/gpu/drm/i915/pxp/intel_pxp_sm.c | 177
drivers/gpu/drm/i915
From: Bommu Krishnaiah
This api allow user mode to create Protected buffer and context creation.
Signed-off-by: Bommu Krishnaiah
Cc: Telukuntla Sreedhar
Cc: Kondapally Kalyan
Cc: Gupta Anshuman
Cc: Huang Sean Z
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 15 ++--
drivers
PXP should terminate the hardware session and cleanup the software
state gracefully when the application has established the
protection session, but doesn't close the session correctly due to
some cases like application crash.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/i915_drv.c
From: Bommu Krishnaiah
Same old gem_create but with now with extensions support. This is needed
to support various upcoming usecases. For now we use the extensions
mechanism to support PAVP.
Signed-off-by: Bommu Krishnaiah
Signed-off-by: Matthew Auld
Cc: Joonas Lahtinen
Implement one ioctl action to allow user space driver to set its
user space context, so PXP can track the context id through this
user space context list.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 57
drivers/gpu/drm/i915/pxp
From: Vitaly Lubart
Export PAVP client to work with i915_cp driver,
for binding it uses kernel component framework.
Signed-off-by: Vitaly Lubart
Signed-off-by: Tomas Winkler
---
drivers/misc/mei/Kconfig | 2 +
drivers/misc/mei/Makefile | 1 +
drivers/misc/mei/pxp/Kconfig |
Implement the ioctl action to allow user space driver sends TEE
commands via PXP ioctl, instead of TEE iotcl. So we can
centralize those protection operations at PXP.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 14 ++
drivers/gpu/drm/i915/pxp/intel_pxp.h
Implement the intel_pxp_gem_object_status() to allow i915 display
querying the current PXP session state. In the design, display
should not perform protection flip on the protected buffers if
there is no PXP session alive.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/pxp/intel_pxp.c
Add several PXP-related reg into allowlist to allow user space
driver to read the those register values.
Signed-off-by: Huang, Sean Z
---
drivers/gpu/drm/i915/i915_reg.h | 6
drivers/gpu/drm/i915/intel_uncore.c | 50 -
2 files changed, 41 insertions(+), 15
301 - 400 of 579 matches
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