Re: [PATCH 1/3] powerpc/book3s64/hash/4k: 4k supports only 16TB linear mapping

2019-10-08 Thread Michael Ellerman
Samuel Holland writes: > Hello, > > On 9/17/19 9:57 AM, Aneesh Kumar K.V wrote: >> With commit: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in >> the >> same 0xc range"), we now split the 64TB address range into 4 contexts each of >> 16TB. That implies we can do only 16TB linear

Re: [PATCH 1/3] powerpc/book3s64/hash/4k: 4k supports only 16TB linear mapping

2019-10-05 Thread Samuel Holland
Hello, On 9/17/19 9:57 AM, Aneesh Kumar K.V wrote: > With commit: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in > the > same 0xc range"), we now split the 64TB address range into 4 contexts each of > 16TB. That implies we can do only 16TB linear mapping. Make sure we don't > add

Re: [PATCH 1/3] powerpc/book3s64/hash/4k: 4k supports only 16TB linear mapping

2019-10-03 Thread Michael Ellerman
On Tue, 2019-09-17 at 14:57:00 UTC, "Aneesh Kumar K.V" wrote: > With commit: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in > the > same 0xc range"), we now split the 64TB address range into 4 contexts each of > 16TB. That implies we can do only 16TB linear mapping. Make sure we d

[PATCH 1/3] powerpc/book3s64/hash/4k: 4k supports only 16TB linear mapping

2019-09-17 Thread Aneesh Kumar K.V
With commit: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in the same 0xc range"), we now split the 64TB address range into 4 contexts each of 16TB. That implies we can do only 16TB linear mapping. Make sure we don't add physical memory above 16TB if that is present in the system.