From: Balbir Singh <bsingharora@gmail•com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux•vnet.ibm.com>,
benh@kernel•crashing.org, paulus@samba•org, mpe@ellerman•id.au
Cc: linuxppc-dev@lists•ozlabs.org
Subject: Re: [PATCH 14/65] powerpc/mm/power9: Add partition table format
Date: Wed, 6 Apr 2016 16:11:26 +1000 [thread overview]
Message-ID: <5704A88E.5090906@gmail.com> (raw)
In-Reply-To: <1459067053-10835-14-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
On 27/03/16 19:23, Aneesh Kumar K.V wrote:
> We also add mach dep call back for updating partition table entry.
The changelog needs to be enhanced.
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux•vnet.ibm.com>
> ---
> arch/powerpc/include/asm/book3s/64/mmu.h | 31 +++++++++++++++++++++++++++++--
> arch/powerpc/include/asm/machdep.h | 1 +
> arch/powerpc/include/asm/reg.h | 1 +
> 3 files changed, 31 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
> index aadb0bbc5c71..b86786f2521c 100644
> --- a/arch/powerpc/include/asm/book3s/64/mmu.h
> +++ b/arch/powerpc/include/asm/book3s/64/mmu.h
> @@ -21,12 +21,39 @@ struct mmu_psize_def {
> extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
> #endif /* __ASSEMBLY__ */
>
> -#ifdef CONFIG_PPC_STD_MMU_64
> /* 64-bit classic hash table MMU */
> #include <asm/book3s/64/mmu-hash.h>
> -#endif
>
> #ifndef __ASSEMBLY__
> +/*
> + * ISA 3.0 partiton and process table entry format
> + */
> +struct prtb_entry {
> + __be64 prtb0;
> + __be64 prtb1;
> +};
> +extern struct prtb_entry *process_tb;
> +
> +struct patb_entry {
> + __be64 patb0;
> + __be64 patb1;
> +};
> +extern struct patb_entry *partition_tb;
> +
> +#define PATB_HR (1UL << 63)
> +#define PATB_GR (1UL << 63)
> +#define RPDB_MASK 0x0ffffffffffff00fUL
> +#define RPDB_SHIFT (1UL << 8)
Some comments on the fields and constants?
> +/*
> + * Limit process table to PAGE_SIZE table. This
> + * also limit the max pid we can support.
> + * MAX_USER_CONTEXT * 16 bytes of space.
> + */
> +#define PRTB_SIZE_SHIFT (CONTEXT_BITS + 4)
> +/*
> + * Power9 currently only support 64K partition table size.
> + */
> +#define PATB_SIZE_SHIFT 16
>
> typedef unsigned long mm_context_id_t;
> struct spinlock;
> diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
> index fd22442d30a9..6bdcd0da9e21 100644
> --- a/arch/powerpc/include/asm/machdep.h
> +++ b/arch/powerpc/include/asm/machdep.h
> @@ -256,6 +256,7 @@ struct machdep_calls {
> #ifdef CONFIG_ARCH_RANDOM
> int (*get_random_seed)(unsigned long *v);
> #endif
> + int (*update_partition_table)(u64);
> };
>
> extern void e500_idle(void);
> diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
> index 52ed654d01ba..257251ada3a3 100644
> --- a/arch/powerpc/include/asm/reg.h
> +++ b/arch/powerpc/include/asm/reg.h
> @@ -587,6 +587,7 @@
> #define SPRN_PIR 0x3FF /* Processor Identification Register */
> #endif
> #define SPRN_TIR 0x1BE /* Thread Identification Register */
> +#define SPRN_PTCR 0x1D0 /* Partition table control Register */
> #define SPRN_PSPB 0x09F /* Problem State Priority Boost reg */
> #define SPRN_PTEHI 0x3D5 /* 981 7450 PTE HI word (S/W TLB load) */
> #define SPRN_PTELO 0x3D6 /* 982 7450 PTE LO word (S/W TLB load) */
next prev parent reply other threads:[~2016-04-06 6:11 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-27 8:23 [PATCH 01/65] powerpc/mm: Use big endian page table for book3s 64 Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 02/65] powerpc/mm: use _PAGE_READ to indicate Read access Aneesh Kumar K.V
2016-03-27 15:35 ` Ian Munsie
2016-03-31 0:57 ` Balbir Singh
2016-04-04 14:55 ` Aneesh Kumar K.V
2016-04-05 3:25 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 03/65] powerpc/mm/subpage: Clear RWX bit to indicate no access Aneesh Kumar K.V
2016-03-31 1:42 ` Balbir Singh
2016-04-04 14:59 ` Aneesh Kumar K.V
2016-04-05 3:30 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 04/65] powerpc/mm: Use pte_user instead of opencoding Aneesh Kumar K.V
2016-03-31 1:45 ` Balbir Singh
2016-04-04 15:00 ` Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 05/65] powerpc/mm: Replace _PAGE_USER with _PAGE_PRIVILEGED Aneesh Kumar K.V
2016-03-27 15:41 ` Ian Munsie
2016-03-27 8:23 ` [PATCH 06/65] powerpc/cxl: Use REGION_ID instead of opencoding Aneesh Kumar K.V
2016-03-27 15:48 ` Ian Munsie
2016-03-27 8:23 ` [PATCH 07/65] powerpc/mm: Remove RPN_SHIFT and RPN_SIZE Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 08/65] powerpc/mm: Update _PAGE_KERNEL_RO Aneesh Kumar K.V
2016-04-05 7:45 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 09/65] powerpc/mm: Use helper for finding pte bits mapping I/O area Aneesh Kumar K.V
2016-04-05 11:47 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 10/65] powerpc/mm: Drop WIMG in favour of new constants Aneesh Kumar K.V
2016-04-05 13:25 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 11/65] powerpc/mm: Use generic version of pmdp_clear_flush_young Aneesh Kumar K.V
2016-04-05 23:51 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 12/65] powerpc/mm: Use generic version of ptep_clear_flush_young Aneesh Kumar K.V
2016-04-05 23:53 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 13/65] powerpc/mm: Move common data structure between radix and hash to book3s 64 generic headers Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 14/65] powerpc/mm/power9: Add partition table format Aneesh Kumar K.V
2016-04-06 6:11 ` Balbir Singh [this message]
2016-03-27 8:23 ` [PATCH 15/65] powerpc/mm/hash: Add support for POWER9 hash Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 16/65] powerpc/mm: Move hash and no hash code to separate files Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 17/65] powerpc/mm/book3s: Rename hash specific PTE bits to carry H_ prefix Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 18/65] powerpc/mm: Handle _PTE_NONE_MASK Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 19/65] powerpc/mm: Move common pte bits and accessors to book3s/64/pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 20/65] powerpc/mm: Move pte accessors that operate on common pte bits to pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 21/65] powerpc/mm: Make page table size a variable Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 22/65] powerpc/mm: Move page table index and and vaddr to pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 23/65] powerpc/mm: Move pte related function together Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 24/65] powerpc/mm/radix: Add radix pte defines Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 25/65] powerpc/mm/radix: Dummy radix_enabled() Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 26/65] powerpc/mm: Add radix callbacks to pte accessors Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 27/65] powerpc/mm: Move hugetlb and THP related pmd accessors to pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 28/65] powerpc/mm/radix: Add radix callback for pmd accessors Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 29/65] powerpc/mm: Abstraction for early init routines Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 30/65] powerpc/mm/radix: Add radix callback " Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 31/65] powerpc/mm: Abstraction for vmemmap and map_kernel_page Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 32/65] powerpc/mm/radix: Add radix callback for vmemmap and map_kernel page Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 33/65] powerpc/mm: Abstraction for switch_mmu_context Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 34/65] powerpc/mm/radix: Add mmu context handling callback for radix Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 35/65] powerpc/mm: Rename mmu_context_hash64.c to mmu_context_book3s64.c Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 36/65] powerpc/mm: Hash linux abstraction for tlbflush routines Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 37/65] powerpc/mm/radix: Add " Aneesh Kumar K.V
2016-03-27 10:00 ` kbuild test robot
2016-03-28 17:58 ` Aneesh Kumar K.V
2016-03-27 10:09 ` kbuild test robot
2016-03-27 10:11 ` kbuild test robot
2016-03-27 8:23 ` [PATCH 38/65] powerpc/mm/radix: Add MMU_FTR_RADIX Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 39/65] powerpc/mm/radix: Use STD_MMU_64 to properly isolate hash related code Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 40/65] powerpc/mm/radix: Isolate hash table function from pseries guest code Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 41/65] powerpc/mm/radix: Add checks in slice code to catch radix usage Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 42/65] powerpc/mm/radix: Limit paca allocation in radix Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 43/65] powerpc/mm/radix: Pick the address layout for radix config Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 44/65] powerpc/mm/radix: Update secondary PTCR Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 45/65] powerpc/mm: Make a copy of pgalloc.h for 32 and 64 book3s Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 46/65] powerpc/mm: revert changes made to generic pgalloc-64.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 47/65] powerpc/mm: Copy pgalloc (part 2) Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 48/65] powerpc/mm: Simplify the code dropping 4 level table #ifdef Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 49/65] powerpc/mm: Rename function to indicate we are allocating fragments Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 50/65] powerpc/mm: make 4k and 64k use pte_t for pgtable_t Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 51/65] powerpc/mm: Add radix pgalloc details Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 52/65] powerpc/mm: Update pte filter for radix Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 53/65] powerpc/mm: VMALLOC abstraction Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 54/65] powerpc/radix: update mmu cache Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 55/65] powerpc/mm: pte_frag abstraction Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 56/65] powerpc/mm: Fix vma_mmu_pagesize for radix Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 57/65] powerpc/mm: Add radix support for hugetlb Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 58/65] powerpc/mm/radix: Make sure swapper pgdir is properly aligned Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 59/65] powerpc/mm/radix: Add hugetlb support 4K page size Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 60/65] powerpc/mm: Drop PTE_ATOMIC_UPDATES from pmd_hugepage_update Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 61/65] powerpc/mm: THP is only available on hash64 as of now Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 62/65] powerpc/mm/thp: Abstraction for THP functions Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 63/65] powerpc/mm/radix: Add radix THP callbacks Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 64/65] powerpc/mm/radix: Add THP support for 4k linux page size Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 65/65] powerpc/mm/radix: Cputable update for radix Aneesh Kumar K.V
2016-03-30 1:01 ` Michael Neuling
2016-04-01 6:25 ` Michael Ellerman
2016-04-01 9:34 ` Aneesh Kumar K.V
2018-06-28 23:55 ` Benjamin Herrenschmidt
2016-03-30 10:53 ` [PATCH 01/65] powerpc/mm: Use big endian page table for book3s 64 Balbir Singh
2016-04-04 15:03 ` Aneesh Kumar K.V
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