Changes in aie4_message.c

c006978163fd001fbca55e5fa57bddcf49f47ad9 - accel/amdxdna: Add AIE4 work buffer initialization

Tue, 05 May 2026 18:09:36 +0200

accel/amdxdna: Add AIE4 work buffer initializationNPU 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 commonhelpers by moving them to aie.c and renaming them toamdxdna_alloc_msg_buffer() and amdxdna_free_msg_buffer(), allowing bothAIE2 and AIE4 to reuse the implementation.Signed-off-by: Nishad Saraf Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Lizhi Hou Link: https://lore.kernel.org/all/20260505160936.3917732-7-lizhi.hou@amd.com/ List of files: /linux/drivers/accel/amdxdna/aie4_message.c

0b087e0636245f7393610cef0f45333effcdd86a - accel/amdxdna: Add AIE4 metadata query support

Wed, 06 May 2026 18:16:42 +0200

accel/amdxdna: Add AIE4 metadata query supportAdd support for querying device metadata on AIE4 via a mailbox message.Refactor aie2_get_aie_metadata() into a common helper by moving it toaie.c and renaming it to amdxdna_get_metadata(), allowing both AIE2and AIE4 to reuse the implementation.Co-developed-by: Hayden Laccabue Signed-off-by: Hayden Laccabue Signed-off-by: David Zhang Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Lizhi Hou Link: https://patch.msgid.link/20260506161642.141257-1-lizhi.hou@amd.com List of files: /linux/drivers/accel/amdxdna/aie4_message.c

c02697cb9388b48086314fca90758016bd51b8e4 - accel/amdxdna: Add basic support for AIE4 devices

Mon, 30 Mar 2026 18:37:01 +0200

accel/amdxdna: Add basic support for AIE4 devicesAdd initial support for AIE4 devices (PCI device IDs 0x17F2 and 0x1B0B),including: Device initialization Basic mailbox communication SR-IOV enablementThis lays the groundwork for full AIE4 support.Co-developed-by: Hayden Laccabue Signed-off-by: Hayden Laccabue Signed-off-by: David Zhang Reviewed-by: Mario Limonciello (AMD) Signed-off-by: Lizhi Hou Link: https://patch.msgid.link/20260330163705.3153647-3-lizhi.hou@amd.com List of files: /linux/drivers/accel/amdxdna/aie4_message.c