opensbi.git/platform/generic/include/mips/mips-cm.h, branch master

platform: generic: mips eyeq7h: synchronize timers across clusters

2026-02-25T13:19:03Z

Use eyeq7 specific method to synchronously restart architectural mtimer and eyeq7h specific high-resolution timer with common hardware trigger. This ensures all timers are precisely in sync Signed-off-by: Vladimir Kondratiev Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260223-for-upstream-eyeq7h-v3-18-621d004d1a21@mobileye.com Signed-off-by: Anup Patel

platform: generic: mips p8700: synchronize hi-res timers

2026-02-25T13:19:03Z

There's high-resolution (1GHz) timer found in the p8700 cluster. This timer used for precise time measurement by platform specific software. Synchronize this proprietary timers to reference in cluster 0. Procedure borrowed from the aclint mtimer. Signed-off-by: Vladimir Kondratiev Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260223-for-upstream-eyeq7h-v3-17-621d004d1a21@mobileye.com Signed-off-by: Anup Patel

platform: generic: mips p8700: access CM registers via match data

2026-02-25T13:19:03Z

Modify the coherence manager register accessors to use the global variable p8700_cm_info instead of the statically declared GLOBAL_CM_BASE array. Also use p8700_cm_info to get the number of coherence managers and their base addresses in mips_p8700_early_init() and mips_p8700_nascent_init(). Clean up the hard-coded values in mips/board.h, access to the coherence manager is now fully based on information provided by platform compatible from the device tree. Signed-off-by: Benoît Monin Signed-off-by: Vladimir Kondratiev Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260223-for-upstream-eyeq7h-v3-9-621d004d1a21@mobileye.com Signed-off-by: Anup Patel

platform: generic: mips p8700: use global CM addresses

2026-02-25T13:19:03Z

In the multi-cluster system each cluster has its own CM (Coherency Manager). Every CM has its "global" memory address where it is accessible from any bus master. Initially, all CMs accessible from the local cluster using same "local" address. Transactions by local address are not routed through system bus and thus are faster. Remap CM in every cluster to the local address matching its global address. Then, every CM is always accessed using same address, but when transaction initiated from the local cluster it is routed internally. This removes need for 2 PMP regions covering local address access. CM accessor functions simplified because there's no need to detect whether transaction is local or global Access timer always in cluster 0 Signed-off-by: Vladimir Kondratiev Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260223-for-upstream-eyeq7h-v3-7-621d004d1a21@mobileye.com Signed-off-by: Anup Patel

platform: generic: mips p8700: improve CM access tracing

2026-02-25T13:19:03Z

use function call like format; debug print returning value of the "read" accessor Signed-off-by: Vladimir Kondratiev Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20260223-for-upstream-eyeq7h-v3-3-621d004d1a21@mobileye.com Signed-off-by: Anup Patel

platform: generic: mips: add P8700

2025-06-14T16:14:11Z

Extend generic platform to support MIPS P8700. Signed-off-by: Chao-ying Fu Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250522212141.3198-2-cfu@mips.com Signed-off-by: Anup Patel