kernel.git/arch/powerpc/platforms/ps3, branch linux-3.7.y

powerpc/mm: Convert virtual address to vpn

2012-09-17T06:31:49Z

This patch convert different functions to take virtual page number instead of virtual address. Virtual page number is virtual address shifted right by VPN_SHIFT (12) bits. This enable us to have an address range of upto 76 bits. Reviewed-by: Paul Mackerras Signed-off-by: Aneesh Kumar K.V Signed-off-by: Benjamin Herrenschmidt

powerpc: Rework set_dabr so it can take a DABRX value as well

2012-09-09T23:59:10Z

Rework set_dabr to take a DABRX value as well. Both the pseries and PS3 hypervisors do some checks on the DABRX values that are passed in the hcall. This patch stops bogus values from being passed to hypervisor. Also, in the case where we are clearing the breakpoint, where DABR and DABRX are zero, we modify the DABRX value to make it valid so that the hcall won't fail. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt

powerpc/ps3: Minor Kconfig cleanup

2012-04-24T22:34:19Z

Signed-off-by: Geoff Levand

powerpc/ps3: Remove MEMORY_HOTPLUG requirement

2012-04-24T22:34:18Z

The dependency on hotplug memory was removed, so remove the dependency in the Kconfig. Signed-off-by: Andre Heider Signed-off-by: Geoff Levand

powerpc/ps3: Add highmem region memory early

2012-04-24T22:34:18Z

Real mode memory can be limited and runs out quickly as memory is allocated during kernel startup. Having the highmem available sooner fixes this. This change simplifies the memory management code by converting from hotplug memory to logical memory blocks. Signed-off-by: Hector Martin Signed-off-by: Andre Heider Signed-off-by: Geoff Levand

powerpc/ps3: Use highmem region from repository

2012-04-24T22:34:17Z

Use any preallocated highmem region setup by the bootloader. This implementation only checks for the existance of a single region at region_index=0. This feature allows the bootloader to preallocate highmem regions and pass the region locations to the kernel through the repository. Preallocated regions can be used to hold the initrd or other large data. If no region info exists, the kernel retains the old behavior and attempts to allocate the highmem region itself. Based on Hector Martin's patch "Get lv1 high memory region from devtree". CC: Hector Martin Signed-off-by: Andre Heider CC: Nathan Whitehorn Signed-off-by: Geoff Levand

powerpc/ps3: Add highmem repository read routines

2012-04-24T22:34:17Z

Add repository helper routines to read highmem region info. Bootloaders that preallocate highmem regions must place the region info into the repository at these well known nodes. These routines allow second stage kernles to read the region info from those nodes. Signed-off-by: Andre Heider CC: Nathan Whitehorn Signed-off-by: Geoff Levand

powerpc/ps3: Add highmem repository write routines

2012-04-24T22:34:17Z

Add routines to allow Linux based bootloaders to create and/or modify highmem region info in the PS3 system repository where it can be retrived by later boot stages. Signed-off-by: Geoff Levand

powerpc/ps3: Add PS3 repository write support

2012-04-24T22:34:16Z

Add a new config option CONFIG_PS3_REPOSITORY_WRITE that conditionally builds in support to create, write and delete nodes in the PS3 system repository. This support will allow Linux based bootloaders to manage data in the system repository for use by later boot stages, Signed-off-by: Geoff Levand

irq_domain: Move irq_virq_count into NOMAP revmap

2012-04-12T06:37:48Z

This patch replaces the old global setting of irq_virq_count that is only used by the NOMAP mapping and instead uses a revmap_data property so that the maximum NOMAP allocation can be set per NOMAP irq_domain. There is exactly one user of irq_virq_count in-tree right now: PS3. Also, irq_virq_count is only useful for the NOMAP mapping. So, instead of having a single global irq_virq_count values, this change drops it entirely and added a max_irq argument to irq_domain_add_nomap(). That makes it a property of an individual nomap irq domain instead of a global system settting. Signed-off-by: Grant Likely Tested-by: Benjamin Herrenschmidt Cc: Thomas Gleixner Cc: Milton Miller