accel/amdxdna: Add AIE4 work buffer initialization

NPU firmware requires a host-allocated work buffer for hardware contexts.
Allocate a 4 MB host buffer and attach it to device during device init.

accel/amdxdna: Add AIE4 work buffer initialization

NPU firmware requires a host-allocated work buffer for hardware contexts.
Allocate a 4 MB host buffer and attach it to device during device init.

Refactor aie2_alloc_msg_buffer() and aie2_free_msg_buffer() into common
helpers by moving them to aie.c and renaming them to
amdxdna_alloc_msg_buffer() and amdxdna_free_msg_buffer(), allowing both
AIE2 and AIE4 to reuse the implementation.

Signed-off-by: Nishad Saraf <nishads@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://lore.kernel.org/all/20260505160936.3917732-7-lizhi.hou@amd.com/

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accel/amdxdna: Add AIE4 metadata query support

Add support for querying device metadata on AIE4 via a mailbox message.
Refactor aie2_get_aie_metadata() into a common helper by moving it to
aie.c and

accel/amdxdna: Add AIE4 metadata query support

Add support for querying device metadata on AIE4 via a mailbox message.
Refactor aie2_get_aie_metadata() into a common helper by moving it to
aie.c and renaming it to amdxdna_get_metadata(), allowing both AIE2
and AIE4 to reuse the implementation.

Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260506161642.141257-1-lizhi.hou@amd.com

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accel/amdxdna: Get device revision to derive VBNV string

Add support for querying the device revision from firmware.

Use the returned revision to look up the VBNV string during device
initializatio

accel/amdxdna: Get device revision to derive VBNV string

Add support for querying the device revision from firmware.

Use the returned revision to look up the VBNV string during device
initialization, and fall back to the default VBNV when the revision
query is not supported or no mapping is found.

This allows the driver to report the accurate VBNV for devices that
share the same vendor/device ID but differ by hardware revision.

Signed-off-by: Max Zhen <max.zhen@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
[Lizhi: Revise amdxdna_vbnv_init()]
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260416190150.1040067-1-lizhi.hou@amd.com

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accel/amdxdna: Create common SMU interfaces for AIE2 and AIE4

AIE2 and AIE4 use similar interfaces to the SMU (System Management
Unit). Move the SMU implementation into aie_smu.c and provide common

accel/amdxdna: Create common SMU interfaces for AIE2 and AIE4

AIE2 and AIE4 use similar interfaces to the SMU (System Management
Unit). Move the SMU implementation into aie_smu.c and provide common
interfaces for both platforms.

This allows AIE2 and AIE4 to share the same implementation and reduces
code duplication.

Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260330163705.3153647-6-lizhi.hou@amd.com

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accel/amdxdna: Add AIE4 firmware loading

Add support for loading AIE4 firmware through the common PSP
interfaces.

Compared to AIE2, AIE4 introduces an additional CERT firmware image.
aiem_psp_creat

accel/amdxdna: Add AIE4 firmware loading

Add support for loading AIE4 firmware through the common PSP
interfaces.

Compared to AIE2, AIE4 introduces an additional CERT firmware image.
aiem_psp_create() performs CERT setup when the CERT image size is
non-zero.

Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260330163705.3153647-5-lizhi.hou@amd.com

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accel/amdxdna: Create common PSP interfaces for AIE2 and AIE4

The AIE2 and AIE4 use the similar interface to PSP (Platform Security
Processor). Move the PSP implementation into aie_psp.c so both pla

accel/amdxdna: Create common PSP interfaces for AIE2 and AIE4

The AIE2 and AIE4 use the similar interface to PSP (Platform Security
Processor). Move the PSP implementation into aie_psp.c so both platforms
use the same path and future AIE4 PSP work can build on it.

Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260330163705.3153647-4-lizhi.hou@amd.com

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accel/amdxdna: Add basic support for AIE4 devices

Add initial support for AIE4 devices (PCI device IDs 0x17F2 and 0x1B0B),
including:
Device initialization
Basic mailbox communication
SR-IOV e

accel/amdxdna: Add basic support for AIE4 devices

Add initial support for AIE4 devices (PCI device IDs 0x17F2 and 0x1B0B),
including:
Device initialization
Basic mailbox communication
SR-IOV enablement

This lays the groundwork for full AIE4 support.

Co-developed-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: Hayden Laccabue <Hayden.Laccabue@amd.com>
Signed-off-by: David Zhang <yidong.zhang@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260330163705.3153647-3-lizhi.hou@amd.com

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accel/amdxdna: Create shared functions for AIE2 and AIE4

The AIE4 platform uses a mailbox management channel mechanism similar to
AIE2 to communicate with the firmware.

Create aie.h and aie.c and m

accel/amdxdna: Create shared functions for AIE2 and AIE4

The AIE4 platform uses a mailbox management channel mechanism similar to
AIE2 to communicate with the firmware.

Create aie.h and aie.c and move the functions and structures that can
be shared by both platforms from the AIE2-specific files into these
common files. This allows AIE2 and AIE4 to reuse the same implementation
and reduces code duplication.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260330163705.3153647-2-lizhi.hou@amd.com

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