[Skiboot] [PATCH 1/8] Add global physical memory map

[Michael Neuling]

On Wed, 2017-05-10 at 17:47 +1000, Stewart Smith wrote:
> Michael Neuling <mikey at neuling.org> writes:
> > This adds a global map for allocating physical memory address. This
> > centralises physical memory space allocations into one location rather
> > than spread through, PHB, XIVE, NX etc.
> > 
> > This adds a new call phys_map_get() which takes a chip, type and index
> > and returns a address and size for the region to be used.
> > 
> > An error in a call to this function crashes skiboot. This is done
> > since bogus calls here are going to be hit by developers not users and
> > they need to be fixed.
> > 
> > Currently only P9 is implemented but other chips should be easy to
> > add. On P9 BARs are generally set by skiboot. On P8 this was done by
> > hostboot so this is not needed there.
> > 
> > This just adds the infrastructure. User (PHB4, XIVE etc) will be
> > migrated in subsequent patches.
> > 
> > Suggested-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
> > Signed-off-by: Michael Neuling <mikey at neuling.org>
> 
> Series merged to master (with a fixup as discussed on slack) as of
> 6916c2a0faff1eedbe9138616e460792e50a0b94

Sorry about that... thanks for fixing....

> 
> Fixup is:
> 
> commit 6916c2a0faff1eedbe9138616e460792e50a0b94
> Author: Stewart Smith <stewart at linux.vnet.ibm.com>
> Date:   Wed May 10 17:42:16 2017 +1000
> 
>     test/hdata_to_dt: fix build breakage caused by phys_map_get
>     
>     Fixes: 5f67c1e253788691d376e4e639d4a6e7785efa55
>     Signed-off-by: Stewart Smith <stewart at linux.vnet.ibm.com>
> 
> diff --git a/hdata/test/hdata_to_dt.c b/hdata/test/hdata_to_dt.c
> index 54f376135213..e8b7ed66242e 100644
> --- a/hdata/test/hdata_to_dt.c
> +++ b/hdata/test/hdata_to_dt.c
> @@ -112,6 +112,7 @@ static bool spira_check_ptr(const void *ptr, const char
> *file, unsigned int line
>  #include "../../core/chip.c"
>  #include "../../test/dt_common.c"
>  #include "../../core/fdt.c"
> +#include "../../hw/phys-map.c"
>  
>  #include <err.h>
>  
> @@ -267,6 +268,8 @@ int main(int argc, char *argv[])
>  		     "Pipe to 'dtc -I dtb -O dts' for human readable\n");
>  	}
>  
> +	phys_map_init();
> +
>  	/* Copy in spira dump (assumes little has changed!). */
>  	if (new_spira) {
>  		fd = open(argv[1], O_RDONLY);
> 
>