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parisc: Add function to return DIMM slot of physical address

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Add a firmware wrapper function, which asks PDC firmware for the DIMM slot of a
physical address. This is needed to show users which DIMM module needs
replacement in case a broken DIMM was encountered.

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller
2017-07-25 19:26:23 +02:00
parent f520e55241
commit 25a9b76597
2 changed files with 40 additions and 1 deletions
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16
arch/parisc/include/asm/pdcpat.h
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@@ -150,7 +150,7 @@
#define PDC_PAT_MEM_SETGM 9L /* Set Good Memory value */
#define PDC_PAT_MEM_ADD_PAGE 10L /* ADDs a page to the cell */
#define PDC_PAT_MEM_ADDRESS 11L /* Get Physical Location From */
/* Memory Address */
/* Memory Address */
#define PDC_PAT_MEM_GET_TXT_SIZE 12L /* Get Formatted Text Size */
#define PDC_PAT_MEM_GET_PD_TXT 13L /* Get PD Formatted Text */
#define PDC_PAT_MEM_GET_CELL_TXT 14L /* Get Cell Formatted Text */
@@ -228,6 +228,17 @@ struct pdc_pat_mem_read_pd_retinfo { /* PDC_PAT_MEM/PDC_PAT_MEM_PD_READ */
unsigned long pdt_entries;
};
struct pdc_pat_mem_phys_mem_location { /* PDC_PAT_MEM/PDC_PAT_MEM_ADDRESS */
u64 cabinet:8;
u64 ign1:8;
u64 ign2:8;
u64 cell_slot:8;
u64 ign3:8;
u64 dimm_slot:8; /* DIMM slot, e.g. 0x1A, 0x2B, show user hex value! */
u64 ign4:8;
u64 source:4; /* for mem: always 0x07 */
u64 source_detail:4; /* for mem: always 0x04 (SIMM or DIMM) */
};
struct pdc_pat_pd_addr_map_entry {
unsigned char entry_type; /* 1 = Memory Descriptor Entry Type */
@@ -319,6 +330,9 @@ extern int pdc_pat_mem_read_cell_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
extern int pdc_pat_mem_read_pd_pdt(struct pdc_pat_mem_read_pd_retinfo *pret,
unsigned long *pdt_entries_ptr, unsigned long count,
unsigned long offset);
extern int pdc_pat_mem_get_dimm_phys_location(
struct pdc_pat_mem_phys_mem_location *pret,
unsigned long phys_addr);
#endif /* __ASSEMBLY__ */