src/sys/arm/include/vmparam.h, branch releng/10.2

MFC r280278, r280402:

2015-05-23T23:27:00Z

Allow to override default kernel virtual address assignment on ARM. Do not save/restore the TLS pointer on context switch for armv6.

MFC 264203, 264204, 264206, 264218:

2014-05-17T21:46:25Z

Tell VM we now have ARM platforms with physically discontiguous memory. Define the full 1024M of ram on the imx51 and imx53 boards. Use a more professional uart device description.

MFC 264128, 264129, 264130, 264135,

2014-05-17T21:07:54Z

Fix TTB set operation for armv7. Perform sychronization (by "isb" barrier) after TTB is set. Fix TLB maintenance issues for armv6 and armv7. - Add cpu_cpwait to comply with the convention. - Add missing TLB invalidations, especially in pmap_kenter & pmap_kremove with distinguishing between D and ID pages. - Modify pmap init/bootstrap invalidations to ID, just to be safe. - Fix TLB-inv and PTE_SYNC ordering. Allocate per-cpu resources for doing pmap_zero_page() and pmap_copy_page(). This is performance enhancement rather than bugfix. We don't support any ARM systems with an ISA bus and don't need a freelist of memory to support ISA addressing limitations.

MFC r257854 (discussed with alc@)

2014-05-16T01:30:30Z

As of r257209, all architectures have defined VM_KMEM_SIZE_SCALE. In other words, every architecture is now auto-sizing the kmem arena. This revision changes kmeminit() so that the definition of VM_KMEM_SIZE_SCALE becomes mandatory and the definition of VM_KMEM_SIZE becomes optional. Replace or eliminate all existing definitions of VM_KMEM_SIZE. With auto-sizing enabled, VM_KMEM_SIZE effectively became an alternate spelling for VM_KMEM_SIZE_MIN on most architectures. Use VM_KMEM_SIZE_MIN for clarity.

MFC r257549, r261642

2014-05-15T19:09:31Z

Don't create a distinct free page pool for segregating allocations that are accessed through the direct map unless the kernel configuration actually includes a direct map. Only a few configurations do, and for the rest the unnecessary free page pool is a small pessimization. Remove the ARM_USE_SMALL_ALLOC option and code related to it.

Provide settings for superpage reservation system on ARM.

2013-08-26T16:23:54Z

This allows for enabling and configuring superpages reservation mechanism in order to allocate and populate 256 4KB base pages (for the purpose of promotion to a 1MB superpage). Submitted by: Zbigniew Bodek Reviewed by: alc Sponsored by: The FreeBSD Foundation, Semihalf

Instead of just trying to do it for arm, make sure vm_kmem_size is properly

2013-08-09T22:30:54Z

aligned in kmeminit(), where it'll work for any arch. Suggested by: alc

Make sure vm_kmem_size is aligned on a page boundary, since that's what vmem

2013-08-09T21:53:02Z

expects.

Rename VM_NDOMAIN into MAXMEMDOM and move it into machine/param.h in

2013-05-07T22:46:24Z

order to match the MAXCPU concept. The change should also be useful for consolidation and consistency. Sponsored by: EMC / Isilon storage division Obtained from: jeff Reviewed by: alc

Move some virtual memory constants to the top of the file where they are on

2013-03-02T05:02:29Z

other architectures [1]. While here: - Remove an unused and commented out include. - Add a comment describing the file that other copies have. - Fix the style of the defines and add a comment on what each one is. Suggested by: [1] alc