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| author | Helge Deller <deller@gmx.de> | 2023-09-07 08:06:37 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2023-09-07 09:12:20 +0200 |
| commit | 510610f96d65277940a02f47d7bc7a06c8a2ab7a (patch) | |
| tree | 8838d843ca8f61d5c740e5ccad77a37ab9dd39f8 | |
| parent | parisc: BTLB: Clear possibly existing BTLB entries (diff) | |
| download | linux-510610f96d65277940a02f47d7bc7a06c8a2ab7a.tar.xz linux-510610f96d65277940a02f47d7bc7a06c8a2ab7a.zip | |
parisc: BTLB: Add BTLB insert and purge firmware function wrappers
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | arch/parisc/include/asm/pdc.h | 3 | ||||
| -rw-r--r-- | arch/parisc/kernel/firmware.c | 42 |
2 files changed, 36 insertions, 9 deletions
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h index 269b9a159f01..2fd7eb2f3746 100644 --- a/arch/parisc/include/asm/pdc.h +++ b/arch/parisc/include/asm/pdc.h @@ -46,6 +46,9 @@ int pdc_cache_info(struct pdc_cache_info *cache); int pdc_spaceid_bits(unsigned long *space_bits); #ifndef CONFIG_PA20 int pdc_btlb_info(struct pdc_btlb_info *btlb); +int pdc_btlb_insert(unsigned long long vpage, unsigned long physpage, unsigned long len, + unsigned long entry_info, unsigned long slot); +int pdc_btlb_purge_all(void); int pdc_mem_map_hpa(struct pdc_memory_map *r_addr, struct pdc_module_path *mod_path); #endif /* !CONFIG_PA20 */ int pdc_pim_toc11(struct pdc_toc_pim_11 *ret); diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c index 8f37e75f2fb9..79bf44d04aa8 100644 --- a/arch/parisc/kernel/firmware.c +++ b/arch/parisc/kernel/firmware.c @@ -696,18 +696,42 @@ int pdc_spaceid_bits(unsigned long *space_bits) */ int pdc_btlb_info(struct pdc_btlb_info *btlb) { - int retval; + int retval; unsigned long flags; - spin_lock_irqsave(&pdc_lock, flags); - retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(pdc_result), 0); - memcpy(btlb, pdc_result, sizeof(*btlb)); - spin_unlock_irqrestore(&pdc_lock, flags); + spin_lock_irqsave(&pdc_lock, flags); + retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INFO, __pa(pdc_result), 0); + memcpy(btlb, pdc_result, sizeof(*btlb)); + spin_unlock_irqrestore(&pdc_lock, flags); - if(retval < 0) { - btlb->max_size = 0; - } - return retval; + if(retval < 0) { + btlb->max_size = 0; + } + return retval; +} + +int pdc_btlb_insert(unsigned long long vpage, unsigned long physpage, unsigned long len, + unsigned long entry_info, unsigned long slot) +{ + int retval; + unsigned long flags; + + spin_lock_irqsave(&pdc_lock, flags); + retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_INSERT, (unsigned long) (vpage >> 32), + (unsigned long) vpage, physpage, len, entry_info, slot); + spin_unlock_irqrestore(&pdc_lock, flags); + return retval; +} + +int pdc_btlb_purge_all(void) +{ + int retval; + unsigned long flags; + + spin_lock_irqsave(&pdc_lock, flags); + retval = mem_pdc_call(PDC_BLOCK_TLB, PDC_BTLB_PURGE_ALL); + spin_unlock_irqrestore(&pdc_lock, flags); + return retval; } /** |