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| author | Anton Blanchard <anton@samba.org> | 2014-04-22 15:01:26 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-04-28 13:11:23 +1000 |
| commit | 3441f04b4b62758a798f9fbbf2047dfedf0329a5 (patch) | |
| tree | 57dcaa15ea0d4d4f7bbd6479fd6393b4bbf3f322 /arch/powerpc/include | |
| parent | 14ad0c58d5df6e5911a5413abdc2a9be6a8acb51 (diff) | |
| download | linux-stable-3441f04b4b62758a798f9fbbf2047dfedf0329a5.tar.gz linux-stable-3441f04b4b62758a798f9fbbf2047dfedf0329a5.tar.bz2 linux-stable-3441f04b4b62758a798f9fbbf2047dfedf0329a5.zip | |
powerpc/powernv: Create OPAL sglist helper functions and fix endian issues
We have two copies of code that creates an OPAL sg list. Consolidate
these into a common set of helpers and fix the endian issues.
The flash interface embedded a version number in the num_entries
field, whereas the dump interface did did not. Since versioning
wasn't added to the flash interface and it is impossible to add
this in a backwards compatible way, just remove it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 1a752ac8c0ba..afb0fedd1214 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -41,14 +41,14 @@ struct opal_takeover_args { * size except the last one in the list to be as well. */ struct opal_sg_entry { - void *data; - long length; + __be64 data; + __be64 length; }; -/* sg list */ +/* SG list */ struct opal_sg_list { - unsigned long num_entries; - struct opal_sg_list *next; + __be64 length; + __be64 next; struct opal_sg_entry entry[]; }; @@ -929,6 +929,10 @@ extern int opal_resync_timebase(void); extern void opal_lpc_init(void); +struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr, + unsigned long vmalloc_size); +void opal_free_sg_list(struct opal_sg_list *sg); + #endif /* __ASSEMBLY__ */ #endif /* __OPAL_H */ |