- 02 3月, 2011 1 次提交
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由 Scott Wood 提交于
memblock_enforce_memory_limit() takes the desired maximum quantity of memory to end up with, not an address above which memory will not be used. Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 16 1月, 2011 1 次提交
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由 Grant Likely 提交于
The physical address is never used by the device tree code when allocating memory for unflattening. Change the architecture's alloc hook to return the virutal address instead. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 22 10月, 2010 1 次提交
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由 Grant Likely 提交于
This patch refactors the early init parsing of the chosen node so that architectures aren't forced to provide an empty implementation of early_init_dt_scan_chosen_arch. Instead, if an architecture wants to do something different, it can either use a wrapper function around early_init_dt_scan_chosen(), or it can replace it altogether. This patch was written in preparation to adding device tree support to both x86 ad MIPS. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NDavid Daney <ddaney@caviumnetworks.com>
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- 05 8月, 2010 2 次提交
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由 Benjamin Herrenschmidt 提交于
The RMA (RMO is a misnomer) is a concept specific to ppc64 (in fact server ppc64 though I hijack it on embedded ppc64 for similar purposes) and represents the area of memory that can be accessed in real mode (aka with MMU off), or on embedded, from the exception vectors (which is bolted in the TLB) which pretty much boils down to the same thing. We take that out of the generic MEMBLOCK data structure and move it into arch/powerpc where it belongs, renaming it to "RMA" while at it. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
This introduce memblock.current_limit which is used to limit allocations from memblock_alloc() or memblock_alloc_base(..., MEMBLOCK_ALLOC_ACCESSIBLE). The old MEMBLOCK_ALLOC_ANYWHERE changes value from 0 to ~(u64)0 and can still be used with memblock_alloc_base() to allocate really anywhere. It is -no-longer- cropped to MEMBLOCK_REAL_LIMIT which disappears. Note to archs: I'm leaving the default limit to MEMBLOCK_ALLOC_ANYWHERE. I strongly recommend that you ensure that you set an appropriate limit during boot in order to guarantee that an memblock_alloc() at any time results in something that is accessible with a simple __va(). The reason is that a subsequent patch will introduce the ability for the array to resize itself by reallocating itself. The MEMBLOCK core will honor the current limit when performing those allocations. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 23 7月, 2010 1 次提交
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由 Benjamin Herrenschmidt 提交于
Oooops... we missed these. We incorrectly converted strings used when parsing the device-tree on pseries, thus breaking access to drconf memory and hotplug memory. While at it, also revert some variable names that represent something the FW calls "lmb" and thus don't need to be converted to "memblock". Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> ---
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- 14 7月, 2010 1 次提交
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由 Yinghai Lu 提交于
via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: NIngo Molnar <mingo@elte.hu> Acked-by: N"H. Peter Anvin" <hpa@zytor.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NYinghai Lu <yinghai@kernel.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 09 3月, 2010 1 次提交
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由 Michael Ellerman 提交于
On 64-bit kernels we currently have a 512 byte struct paca_struct for each cpu (usually just called "the paca"). Currently they are statically allocated, which means a kernel built for a large number of cpus will waste a lot of space if it's booted on a machine with few cpus. We can avoid that by only allocating the number of pacas we need at boot. However this is complicated by the fact that we need to access the paca before we know how many cpus there are in the system. The solution is to dynamically allocate enough space for NR_CPUS pacas, but then later in boot when we know how many cpus we have, we free any unused pacas. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 14 2月, 2010 3 次提交
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由 Grant Likely 提交于
Rather than defining of_chosen in each arch, it can be defined for all in driver/of/base.c Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Neither the powerpc nor the microblaze code use devtree_lock anymore. Remove the extern reference. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NMichal Simek <monstr@monstr.eu>
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由 Jeremy Kerr 提交于
We don't always have lmb available, so make arches provide an early_init_dt_alloc_memory_arch() to handle the allocation of memory in the fdt code. When we don't have lmb.h included, we need asm/page.h for __va. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NMichal Simek <monstr@monstr.eu>
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- 09 2月, 2010 5 次提交
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由 Jeremy Kerr 提交于
The boot_param_header has big-endian fields, so change the types to __be32, and perform endian conversion when we access them. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Jeremy Kerr 提交于
At present, the fdt code sets the kernel-wide initrd_start and initrd_end variables when parsing /chosen. On ARM, we only set these once the bootmem has been reserved. This change adds an arch hook to setup the initrd from the device tree: void early_init_dt_setup_initrd_arch(unsigned long start, unsigned long end); The arch-specific code can then setup the initrd however it likes. Compiled on powerpc, with CONFIG_BLK_DEV_INITRD=y and =n. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze architectures. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NMichal Simek <monstr@monstr.eu>
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由 Jeremy Kerr 提交于
Merge common function between powerpc, sparc and microblaze. Code is identical for powerpc and microblaze, but adds a lock (and release) of the devtree_lock on sparc. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 29 1月, 2010 3 次提交
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由 Grant Likely 提交于
In struct device_node, the phandle is named 'linux_phandle' for PowerPC and MicroBlaze, and 'node' for SPARC. There is no good reason for the difference, it is just an artifact of the code diverging over a couple of years. This patch renames both to simply .phandle. Note: the .node also existed in PowerPC/MicroBlaze, but the only user seems to be arch/powerpc/platforms/powermac/pfunc_core.c. It doesn't look like the assignment between .linux_phandle and .node is significantly different enough to warrant the separate code paths unless ibm,phandle properties actually appear in Apple device trees. I think it is safe to eliminate the old .node property and use phandle everywhere. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NDavid S. Miller <davem@davemloft.net> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
Merge common code between PowerPC and MicroBlaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 11 12月, 2009 5 次提交
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze. This patch splits the arch-specific stuff out into a new function, early_init_dt_scan_chosen_arch(). Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
A cell is firmly established as a u32. No need to do an ugly typedef to redefine it to cell_t. Eliminate the unnecessary typedef so that it doesn't have to be added to the of_fdt header file Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: NWolfram Sang <w.sang@pengutronix.de>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: NWolfram Sang <w.sang@pengutronix.de>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 24 11月, 2009 8 次提交
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由 Grant Likely 提交于
Merge common code between PowerPC and MicroBlaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Merge common code between PowerPC and MicroBlaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Merge common code between PowerPC and MicroBlaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Merge common code between PowerPC and MicroBlaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
Merge common code between Microblaze and PowerPC. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Tested-by: NMichal Simek <monstr@monstr.eu>
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- 16 10月, 2009 1 次提交
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由 Grant Likely 提交于
Merge common code between Microblaze and PowerPC, and make it available to Sparc Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NMichal Simek <monstr@monstr.eu> Acked-by: NStephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: NStephen Rothwell <sfr@canb.auug.org.au>
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- 09 6月, 2009 1 次提交
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由 Benjamin Herrenschmidt 提交于
This is a random collection of added ifdef's around portions of code that only mak sense on server processors. Using either CONFIG_PPC_STD_MMU_64 or CONFIG_PPC_BOOK3S as seems appropriate. This is meant to make the future merging of Book3E 64-bit support easier. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 15 5月, 2009 1 次提交
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由 Becky Bruce 提交于
We're currently choking on mem=4g (and above) due to memory_limit being specified as an unsigned long. Make memory_limit phys_addr_t to fix this. Signed-off-by: NBecky Bruce <beckyb@kernel.crashing.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 11 2月, 2009 1 次提交
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由 Michael Ellerman 提交于
The lmb debugging can be turned on at boottime with lmb=debug on the command line. However on powerpc that doesn't work, because we don't necessarily call lmb_dump_all(). So always call lmb_dump_all() after lmb_analyze(), no output is generated unless lmb=debug is found on the command line. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Acked-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 16 1月, 2009 1 次提交
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由 Michael Neuling 提交于
The PAPR says that the property for specifying the number of SLBs should be called "slb-size". We currently only look for "ibm,slb-size" because this is what firmware actually presents. This patch makes us look for the "slb-size" property as well and in preference to the "ibm,slb-size". This should future proof us if firmware changes to match PAPR. Signed-off-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 08 1月, 2009 1 次提交
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由 Stephen Rothwell 提交于
of_get_flat_dt_prop() returns a "void *", so we don't need to cast when assigning its result to a pointer variable. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 29 12月, 2008 1 次提交
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由 Hollis Blanchard 提交于
Ensure that total memory size is page-aligned, because otherwise mark_bootmem() gets upset. This error case was triggered by using 64 KiB pages in the kernel while arch/powerpc/boot/4xx.c arbitrarily reduced the amount of memory by 4096 (to work around a chip bug that affects the last 256 bytes of physical memory). Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 21 12月, 2008 1 次提交
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由 Nathan Lynch 提交于
We have more than one piece of code that looks up cache nodes manually using the "l2-cache" property. Add a common helper routine which does this and handles ePAPR's "next-level-cache" property as well as powermac. Signed-off-by: NNathan Lynch <ntl@pobox.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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