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| author |   Helge Deller <deller@gmx.de> | 2018-10-19 22:13:49 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2018-10-20 21:10:37 +0200 |
| commit | e543b3a620296a18aaf0d66475b68d6a85e8fcd4 (patch) | |
| tree | 1da07950f750d30e2366a06215f5701c5264223a | |
| parent | parisc: Optimze cache flush algorithms (diff) | |
| download | linux-dev-e543b3a620296a18aaf0d66475b68d6a85e8fcd4.tar.xz linux-dev-e543b3a620296a18aaf0d66475b68d6a85e8fcd4.zip | |
parisc: Retrieve and display the PDC PAT capabilities
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | arch/parisc/include/asm/pdc.h | 1 | ||||
| -rw-r--r-- | arch/parisc/kernel/inventory.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h index 339e83ddb39e..5b187d40d604 100644 --- a/arch/parisc/include/asm/pdc.h +++ b/arch/parisc/include/asm/pdc.h @@ -11,6 +11,7 @@ extern int parisc_narrow_firmware; extern int pdc_type; extern unsigned long parisc_cell_num; /* cell number the CPU runs on (PAT) */ extern unsigned long parisc_cell_loc; /* cell location of CPU (PAT) */ +extern unsigned long parisc_pat_pdc_cap; /* PDC capabilities (PAT) */ /* Values for pdc_type */ #define PDC_TYPE_ILLEGAL -1 diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c index b0fe19ac4d78..35d05fdd7483 100644 --- a/arch/parisc/kernel/inventory.c +++ b/arch/parisc/kernel/inventory.c @@ -43,6 +43,7 @@ int pdc_type __read_mostly = PDC_TYPE_ILLEGAL; /* cell number and location (PAT firmware only) */ unsigned long parisc_cell_num __read_mostly; unsigned long parisc_cell_loc __read_mostly; +unsigned long parisc_pat_pdc_cap __read_mostly; void __init setup_pdc(void) @@ -81,12 +82,21 @@ void __init setup_pdc(void) #ifdef CONFIG_64BIT status = pdc_pat_cell_get_number(&cell_info); if (status == PDC_OK) { + unsigned long legacy_rev, pat_rev; pdc_type = PDC_TYPE_PAT; pr_cont("64 bit PAT.\n"); parisc_cell_num = cell_info.cell_num; parisc_cell_loc = cell_info.cell_loc; pr_info("PAT: Running on cell %lu and location %lu.\n", parisc_cell_num, parisc_cell_loc); + status = pdc_pat_pd_get_pdc_revisions(&legacy_rev, + &pat_rev, &parisc_pat_pdc_cap); + pr_info("PAT: legacy revision 0x%lx, pat_rev 0x%lx, pdc_cap 0x%lx, S-PTLB %d, HPMC_RENDEZ %d.\n", + legacy_rev, pat_rev, parisc_pat_pdc_cap, + parisc_pat_pdc_cap + & PDC_PAT_CAPABILITY_BIT_SIMULTANEOUS_PTLB ? 1:0, + parisc_pat_pdc_cap + & PDC_PAT_CAPABILITY_BIT_PDC_HPMC_RENDEZ ? 1:0); return; } #endif |