| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | x86, olpc: Constify an olpc_ofw() arg | Andres Salomon | 2010-07-30 | 1 | -1/+1 |
| | | | | | | | | | | | The arguments passed to OFW shouldn't be modified; update the 'args' argument of olpc_ofw to reflect this. This saves us some later casting away of consts. Signed-off-by: Andres Salomon <dilinger@queued.net> LKML-Reference: <20100628220029.1555ac24@debian> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> | ||||
| * | x86, olpc: Add comment about implicit optimization barrier | Andres Salomon | 2010-06-24 | 1 | -0/+2 |
| | | | | | | | | Signed-off-by: Andres Salomon <dilinger@queued.net> Cc: H. Peter Anvin <hpa@linux.intel.com> LKML-Reference: <20100618174653.7755a39a@dev.queued.net> Signed-off-by: Ingo Molnar <mingo@elte.hu> | ||||
| * | x86, olpc: Add support for calling into OpenFirmware | Andres Salomon | 2010-06-18 | 1 | -0/+104 |
| Add support for saving OFW's cif, and later calling into it to run OFW commands. OFW remains resident in memory, living within virtual range 0xff800000 - 0xffc00000. A single page directory entry points to the pgdir that OFW actually uses, so rather than saving the entire page table, we grab and install that one entry permanently in the kernel's page table. This is currently only used by the OLPC XO. Note that this particular calling convention breaks PAE and PAT, and so cannot be used on newer x86 hardware. Signed-off-by: Andres Salomon <dilinger@queued.net> LKML-Reference: <20100618174653.7755a39a@dev.queued.net> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> | |||||
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index : op-kernel-dev | |
| Development kernel branch for OpenPOWER systems | Raptor Engineering, LLC |
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