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* [ARM] Fix non-page aligned boot time mappingsRussell King2007-07-04
| | | | | | | | | | | | | AT91SAM9260 stopped booting with the recent changes to MM initialisation - it was asking for a non-aligned virtual address which caused loops to be non-terminal. Fix this by rounding virtual addresses down, but remember to include the offset in the length, and round the length up to the following page. This means that asking for a mapping of 4K starting at 2K into a page maps two pages as one would expect. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] spelling fixesSimon Arlott2007-05-20
| | | | | | | Spelling fixes in arch/arm/. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 9: add additional device memory typesRussell King2007-05-05
| | | | | | | Add cached device type for ioremap_cached(). Group all device memory types together, and ensure that they all have a "MT_DEVICE" prefix. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6Russell King2007-05-05
| | | | | | | Change the memory types table to define the L1 descriptor bit 4 to be in terms of the ARMv6 definition - execute never. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 6: allow mem_types table to specify extended pte attributesRussell King2007-04-21
| | | | | | | | Add prot_pte_ext to the mem_types table to allow the extended pte attributes to be passed to set_pte_ext(), thereby permitting us to specify memory type information for the hardware PTE entries. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 5: Use mem_types table in ioremapRussell King2007-04-21
| | | | | | | We really want to be using the memory type table in ioremap, so we only have to do the CPU type fixups in one place. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 4: make create_mapping() more conventionalRussell King2007-04-21
| | | | | | | | | Rather than our three separate loops to setup mappings (by page mappings up to a section boundary, then section mappings, and the remainder by page mappings) convert this to a more conventional Linux style of a loop over each page table level. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 3: separate out supersection mappings, avoid for <4GBRussell King2007-04-21
| | | | | | | | | | | | | | | | | | | | Catalin Marinas at ARM Ltd says: > The CPU architects in ARM intended supersections only as a way to map > addresses >= 4GB. Supersections are not mandated by the architecture > and there is no easy way to detect their hardware support at run-time > (other than checking for a specific core). From the analysis done in > ARM, there wasn't a clear performance gain by using supersections > rather than sections (no significant improvement in the TLB misses). Therefore, we should avoid using supersections unless there's a real need (iow, we're mapping addresses >= 4GB). This means that we can simplify create_mapping() a bit since we will only use supersection mappings for addresses >= 4GB, which means that the physical, virtual and length must be multiples of the supersection mapping size. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 2: clean up create_mapping()Russell King2007-04-21
| | | | | | | | There's now no need to carry around each protection separately. Instead, pass around the pointer to the entry in the mem_types array which we're interested in. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] mm 1: Combine mem_type domain into prot_* at init timeRussell King2007-04-21
| | | | | | | | | | | Rather than combining the domain for a particular memory type with the protection information each time we want to use it, do so when we fix up the mem_type array at initialisation time. Rename struct mem_types to be mem_type - each structure is one memory type description, not several. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4158/1: Fix user page protection macrosImre_Deak2007-02-11
| | | | | | | | | | The PAGE_* user page protection macros don't take into account the configured memory policy and other architecture specific bits like the global/ASID and shared mapping bits. Instead of constants let these depend on a variable fixed up at init just like PAGE_KERNEL. Signed-off-by: Imre Deak <imre.deak@solidboot.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix warnings from asm/system.hRussell King2006-12-17
| | | | | | | Move adjust_cr() into arch/arm/mm/mmu.c, and move irqflags.h to a more appropriate place in the header file. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Unuse another Linux PTE bitRussell King2006-12-13
| | | | | | | | | | L_PTE_ASID is not really required to be stored in every PTE, since we can identify it via the address passed to set_pte_at(). So, create set_pte_ext() which takes the address of the PTE to set, the Linux PTE value, and the additional CPU PTE bits which aren't encoded in the Linux PTE value. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3999/1: RX3715: suspend to RAM supportBen Dooks2006-12-07
| | | | | | | | | | The RX3715 is similar to the H1940 in the way that suspend to RAM works, so we can use most of the extant support for the H1940 with only a few modifictions Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3986/1: H1940: suspend to RAM supportBen Dooks2006-12-07
| | | | | | | | | Add support to suspend and resume, using the H1940's bootloader Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3971/1: xsc3: get rid of L_PTE_COHERENTLennert Buytenhek2006-12-01
| | | | | | | | Merge L_PTE_COHERENT with L_PTE_SHARED and free up a L_PTE_* bit. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix XIP_KERNEL build error in arch/arm/mm/mmu.cRussell King2006-09-30
| | | | | | | XIP kernels need to know the start/end of text, but we were missing the declaration of _etext in mmu.c. Add it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Move rest of MMU setup code from mm-armv.c to mmu.cRussell King2006-09-27
| | | | | | | | | If we're going to have mmu.c for code which is specific to the MMU machines, we might as well move the other MMU initialisation specific code from mm-armv.c into this new file. This also allows us to make some functions static. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Split ARM MM initialisation for !mmuRussell King2006-09-27
| | | | | | | Move the MMU specific code from init.c into mmu.c, and add nommu fixups to nommu.c Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Move mmu.c out of the wayRussell King2006-09-20
| | | | | | | Rename mmu.c to context.c - it's the ARMv6 ASID context handling code rather than generic "mmu" handling code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Linux-2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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