diff options
Diffstat (limited to 'drivers/parisc')
| -rw-r--r-- | drivers/parisc/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/parisc/Makefile | 16 | ||||
| -rw-r--r-- | drivers/parisc/asp.c | 11 | ||||
| -rw-r--r-- | drivers/parisc/ccio-dma.c | 93 | ||||
| -rw-r--r-- | drivers/parisc/dino.c | 6 | ||||
| -rw-r--r-- | drivers/parisc/eisa.c | 5 | ||||
| -rw-r--r-- | drivers/parisc/eisa_eeprom.c | 2 | ||||
| -rw-r--r-- | drivers/parisc/gsc.c | 19 | ||||
| -rw-r--r-- | drivers/parisc/hppb.c | 7 | ||||
| -rw-r--r-- | drivers/parisc/iommu-helpers.h | 16 | ||||
| -rw-r--r-- | drivers/parisc/iosapic.c | 16 | ||||
| -rw-r--r-- | drivers/parisc/iosapic_private.h | 4 | ||||
| -rw-r--r-- | drivers/parisc/lasi.c | 37 | ||||
| -rw-r--r-- | drivers/parisc/lba_pci.c | 8 | ||||
| -rw-r--r-- | drivers/parisc/led.c | 899 | ||||
| -rw-r--r-- | drivers/parisc/pdc_stable.c | 2 | ||||
| -rw-r--r-- | drivers/parisc/power.c | 87 | ||||
| -rw-r--r-- | drivers/parisc/sba_iommu.c | 103 | ||||
| -rw-r--r-- | drivers/parisc/wax.c | 12 |
19 files changed, 563 insertions, 783 deletions
diff --git a/drivers/parisc/Kconfig b/drivers/parisc/Kconfig index 2fc3222d2634..9cbcf15527b6 100644 --- a/drivers/parisc/Kconfig +++ b/drivers/parisc/Kconfig @@ -100,8 +100,9 @@ config SUPERIO config CHASSIS_LCD_LED bool "Chassis LCD and LED support" + depends on LEDS_CLASS=y default y - select VM_EVENT_COUNTERS + select LEDS_TRIGGERS help Say Y here if you want to enable support for the Heartbeat, Disk/Network activities LEDs on some PA-RISC machines, diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile index 99fa6a89e0b9..69860a60bb7a 100644 --- a/drivers/parisc/Makefile +++ b/drivers/parisc/Makefile @@ -1,25 +1,27 @@ # SPDX-License-Identifier: GPL-2.0 # -# Makefile for most of the non-PCI devices in PA-RISC machines +# Makefile PCI and non-PCI devices in PA-RISC machines +# +# Keep the order below, e.g. +# - ccio before any potential subdevices +# - gsc is required before lasi and wax +# - asp and wax before the EISA adapters for the IRQ regions +# - EISA must come before PCI to be sure it gets IRQ region # -# I/O SAPIC is also on IA64 platforms. -# The two could be merged into a common source some day. obj-$(CONFIG_IOSAPIC) += iosapic.o obj-$(CONFIG_IOMMU_SBA) += sba_iommu.o obj-$(CONFIG_PCI_LBA) += lba_pci.o obj-$(CONFIG_IOMMU_CCIO) += ccio-dma.o obj-$(CONFIG_GSC) += gsc.o - -obj-$(CONFIG_HPPB) += hppb.o -obj-$(CONFIG_GSC_DINO) += dino.o obj-$(CONFIG_GSC_LASI) += lasi.o asp.o obj-$(CONFIG_GSC_WAX) += wax.o obj-$(CONFIG_EISA) += eisa.o eisa_enumerator.o eisa_eeprom.o +obj-$(CONFIG_HPPB) += hppb.o +obj-$(CONFIG_GSC_DINO) += dino.o obj-$(CONFIG_SUPERIO) += superio.o obj-$(CONFIG_CHASSIS_LCD_LED) += led.o obj-$(CONFIG_PDC_STABLE) += pdc_stable.o obj-y += power.o - diff --git a/drivers/parisc/asp.c b/drivers/parisc/asp.c index f55018e5cc7c..32af8f095781 100644 --- a/drivers/parisc/asp.c +++ b/drivers/parisc/asp.c @@ -4,7 +4,7 @@ * * (c) Copyright 2000 The Puffin Group Inc. * - * by Helge Deller <deller@gmx.de> + * (c) 2000-2023 by Helge Deller <deller@gmx.de> */ #include <linux/errno.h> @@ -118,9 +118,16 @@ static const struct parisc_device_id asp_tbl[] __initconst = { { HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00070 }, { 0, } }; +MODULE_DEVICE_TABLE(parisc, asp_tbl); -struct parisc_driver asp_driver __refdata = { +static struct parisc_driver asp_driver __refdata = { .name = "asp", .id_table = asp_tbl, .probe = asp_init_chip, }; + +static int __init asp_init(void) +{ + return register_parisc_driver(&asp_driver); +} +arch_initcall(asp_init); diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 9bf652bd002c..4e7071714356 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -8,18 +8,10 @@ ** (c) Copyright 2000 Ryan Bradetich ** (c) Copyright 2000 Hewlett-Packard Company ** -** -** ** "Real Mode" operation refers to U2/Uturn chip operation. ** U2/Uturn were designed to perform coherency checks w/o using ** the I/O MMU - basically what x86 does. ** -** Philipp Rumpf has a "Real Mode" driver for PCX-W machines at: -** CVSROOT=:pserver:anonymous@198.186.203.37:/cvsroot/linux-parisc -** cvs -z3 co linux/arch/parisc/kernel/dma-rm.c -** -** I've rewritten his code to work under TPG's tree. See ccio-rm-dma.c. -** ** Drawbacks of using Real Mode are: ** o outbound DMA is slower - U2 won't prefetch data (GSC+ XQL signal). ** o Inbound DMA less efficient - U2 can't use DMA_FAST attribute. @@ -71,8 +63,6 @@ #undef CCIO_COLLECT_STATS #endif -#include <asm/runway.h> /* for proc_runway_root */ - #ifdef DEBUG_CCIO_INIT #define DBG_INIT(x...) printk(x) #else @@ -224,7 +214,7 @@ struct ioa_registers { struct ioc { struct ioa_registers __iomem *ioc_regs; /* I/O MMU base address */ u8 *res_map; /* resource map, bit == pdir entry */ - u64 *pdir_base; /* physical base address */ + __le64 *pdir_base; /* physical base address */ u32 pdir_size; /* bytes, function of IOV Space size */ u32 res_hint; /* next available IOVP - circular search */ @@ -349,7 +339,7 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size) BUG_ON(pages_needed == 0); BUG_ON((pages_needed * IOVP_SIZE) > DMA_CHUNK_SIZE); - DBG_RES("%s() size: %d pages_needed %d\n", + DBG_RES("%s() size: %zu pages_needed %d\n", __func__, size, pages_needed); /* @@ -437,7 +427,7 @@ ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped) BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE); BUG_ON(pages_mapped > BITS_PER_LONG); - DBG_RES("%s(): res_idx: %d pages_mapped %d\n", + DBG_RES("%s(): res_idx: %d pages_mapped %lu\n", __func__, res_idx, pages_mapped); #ifdef CCIO_COLLECT_STATS @@ -527,10 +517,10 @@ static u32 hint_lookup[] = { * ccio_io_pdir_entry - Initialize an I/O Pdir. * @pdir_ptr: A pointer into I/O Pdir. * @sid: The Space Identifier. - * @vba: The virtual address. + * @pba: The physical address. * @hints: The DMA Hint. * - * Given a virtual address (vba, arg2) and space id, (sid, arg1), + * Given a physical address (pba, arg2) and space id, (sid, arg1), * load the I/O PDIR entry pointed to by pdir_ptr (arg0). Each IO Pdir * entry consists of 8 bytes as shown below (MSB == bit 0): * @@ -553,7 +543,7 @@ static u32 hint_lookup[] = { * index are bits 12:19 of the value returned by LCI. */ static void -ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba, +ccio_io_pdir_entry(__le64 *pdir_ptr, space_t sid, phys_addr_t pba, unsigned long hints) { register unsigned long pa; @@ -567,7 +557,7 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba, ** "hints" parm includes the VALID bit! ** "dep" clobbers the physical address offset bits as well. */ - pa = lpa(vba); + pa = pba; asm volatile("depw %1,31,12,%0" : "+r" (pa) : "r" (hints)); ((u32 *)pdir_ptr)[1] = (u32) pa; @@ -592,7 +582,7 @@ ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba, ** Grab virtual index [0:11] ** Deposit virt_idx bits into I/O PDIR word */ - asm volatile ("lci %%r0(%1), %0" : "=r" (ci) : "r" (vba)); + asm volatile ("lci %%r0(%1), %0" : "=r" (ci) : "r" (phys_to_virt(pba))); asm volatile ("extru %1,19,12,%0" : "+r" (ci) : "r" (ci)); asm volatile ("depw %1,15,12,%0" : "+r" (pa) : "r" (ci)); @@ -714,14 +704,14 @@ ccio_dma_supported(struct device *dev, u64 mask) /** * ccio_map_single - Map an address range into the IOMMU. * @dev: The PCI device. - * @addr: The start address of the DMA region. + * @addr: The physical address of the DMA region. * @size: The length of the DMA region. * @direction: The direction of the DMA transaction (to/from device). * * This function implements the pci_map_single function. */ static dma_addr_t -ccio_map_single(struct device *dev, void *addr, size_t size, +ccio_map_single(struct device *dev, phys_addr_t addr, size_t size, enum dma_data_direction direction) { int idx; @@ -729,7 +719,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size, unsigned long flags; dma_addr_t iovp; dma_addr_t offset; - u64 *pdir_start; + __le64 *pdir_start; unsigned long hint = hint_lookup[(int)direction]; BUG_ON(!dev); @@ -740,7 +730,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size, BUG_ON(size <= 0); /* save offset bits */ - offset = ((unsigned long) addr) & ~IOVP_MASK; + offset = offset_in_page(addr); /* round up to nearest IOVP_SIZE */ size = ALIGN(size + offset, IOVP_SIZE); @@ -756,15 +746,15 @@ ccio_map_single(struct device *dev, void *addr, size_t size, pdir_start = &(ioc->pdir_base[idx]); - DBG_RUN("%s() 0x%p -> 0x%lx size: %0x%x\n", - __func__, addr, (long)iovp | offset, size); + DBG_RUN("%s() %pa -> %#lx size: %zu\n", + __func__, &addr, (long)(iovp | offset), size); /* If not cacheline aligned, force SAFE_DMA on the whole mess */ - if((size % L1_CACHE_BYTES) || ((unsigned long)addr % L1_CACHE_BYTES)) + if ((size % L1_CACHE_BYTES) || (addr % L1_CACHE_BYTES)) hint |= HINT_SAFE_DMA; while(size > 0) { - ccio_io_pdir_entry(pdir_start, KERNEL_SPACE, (unsigned long)addr, hint); + ccio_io_pdir_entry(pdir_start, KERNEL_SPACE, addr, hint); DBG_RUN(" pdir %p %08x%08x\n", pdir_start, @@ -783,17 +773,18 @@ ccio_map_single(struct device *dev, void *addr, size_t size, static dma_addr_t -ccio_map_page(struct device *dev, struct page *page, unsigned long offset, - size_t size, enum dma_data_direction direction, - unsigned long attrs) +ccio_map_phys(struct device *dev, phys_addr_t phys, size_t size, + enum dma_data_direction direction, unsigned long attrs) { - return ccio_map_single(dev, page_address(page) + offset, size, - direction); + if (unlikely(attrs & DMA_ATTR_MMIO)) + return DMA_MAPPING_ERROR; + + return ccio_map_single(dev, phys, size, direction); } /** - * ccio_unmap_page - Unmap an address range from the IOMMU. + * ccio_unmap_phys - Unmap an address range from the IOMMU. * @dev: The PCI device. * @iova: The start address of the DMA region. * @size: The length of the DMA region. @@ -801,7 +792,7 @@ ccio_map_page(struct device *dev, struct page *page, unsigned long offset, * @attrs: attributes */ static void -ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size, +ccio_unmap_phys(struct device *dev, dma_addr_t iova, size_t size, enum dma_data_direction direction, unsigned long attrs) { struct ioc *ioc; @@ -815,7 +806,7 @@ ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size, return; } - DBG_RUN("%s() iovp 0x%lx/%x\n", + DBG_RUN("%s() iovp %#lx/%zx\n", __func__, (long)iova, size); iova ^= offset; /* clear offset bits */ @@ -863,7 +854,8 @@ ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag, if (ret) { memset(ret, 0, size); - *dma_handle = ccio_map_single(dev, ret, size, DMA_BIDIRECTIONAL); + *dma_handle = ccio_map_single(dev, virt_to_phys(ret), size, + DMA_BIDIRECTIONAL); } return ret; @@ -883,7 +875,7 @@ static void ccio_free(struct device *dev, size_t size, void *cpu_addr, dma_addr_t dma_handle, unsigned long attrs) { - ccio_unmap_page(dev, dma_handle, size, 0, 0); + ccio_unmap_phys(dev, dma_handle, size, 0, 0); free_pages((unsigned long)cpu_addr, get_order(size)); } @@ -930,7 +922,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents, /* Fast path single entry scatterlists. */ if (nents == 1) { sg_dma_address(sglist) = ccio_map_single(dev, - sg_virt(sglist), sglist->length, + sg_phys(sglist), sglist->length, direction); sg_dma_len(sglist) = sglist->length; return 1; @@ -1014,7 +1006,7 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, #ifdef CCIO_COLLECT_STATS ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT; #endif - ccio_unmap_page(dev, sg_dma_address(sglist), + ccio_unmap_phys(dev, sg_dma_address(sglist), sg_dma_len(sglist), direction, 0); ++sglist; nents--; @@ -1027,12 +1019,12 @@ static const struct dma_map_ops ccio_ops = { .dma_supported = ccio_dma_supported, .alloc = ccio_alloc, .free = ccio_free, - .map_page = ccio_map_page, - .unmap_page = ccio_unmap_page, + .map_phys = ccio_map_phys, + .unmap_phys = ccio_unmap_phys, .map_sg = ccio_map_sg, .unmap_sg = ccio_unmap_sg, .get_sgtable = dma_common_get_sgtable, - .alloc_pages = dma_common_alloc_pages, + .alloc_pages_op = dma_common_alloc_pages, .free_pages = dma_common_free_pages, }; @@ -1082,7 +1074,7 @@ static int ccio_proc_info(struct seq_file *m, void *p) ioc->msingle_calls, ioc->msingle_pages, (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls)); - /* KLUGE - unmap_sg calls unmap_page for each mapped page */ + /* KLUGE - unmap_sg calls unmap_phys for each mapped page */ min = ioc->usingle_calls - ioc->usg_calls; max = ioc->usingle_pages - ioc->usg_pages; seq_printf(m, "pci_unmap_single: %8ld calls %8ld pages (avg %d/1000)\n", @@ -1293,7 +1285,7 @@ ccio_ioc_init(struct ioc *ioc) iova_space_size>>20, iov_order + PAGE_SHIFT); - ioc->pdir_base = (u64 *)__get_free_pages(GFP_KERNEL, + ioc->pdir_base = (__le64 *)__get_free_pages(GFP_KERNEL, get_order(ioc->pdir_size)); if(NULL == ioc->pdir_base) { panic("%s() could not allocate I/O Page Table\n", __func__); @@ -1567,10 +1559,15 @@ static int __init ccio_probe(struct parisc_device *dev) #ifdef CONFIG_PROC_FS if (ioc_count == 0) { - proc_create_single(MODULE_NAME, 0, proc_runway_root, + struct proc_dir_entry *runway; + + runway = proc_mkdir("bus/runway", NULL); + if (runway) { + proc_create_single(MODULE_NAME, 0, runway, ccio_proc_info); - proc_create_single(MODULE_NAME"-bitmap", 0, proc_runway_root, + proc_create_single(MODULE_NAME"-bitmap", 0, runway, ccio_proc_bitmap_info); + } } #endif ioc_count++; @@ -1582,8 +1579,8 @@ static int __init ccio_probe(struct parisc_device *dev) * * Register this driver. */ -void __init ccio_init(void) +static int __init ccio_init(void) { - register_parisc_driver(&ccio_driver); + return register_parisc_driver(&ccio_driver); } - +arch_initcall(ccio_init); diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c index f89f9fb4c84b..01a50a051296 100644 --- a/drivers/parisc/dino.c +++ b/drivers/parisc/dino.c @@ -1084,8 +1084,8 @@ static struct parisc_driver dino_driver __refdata = { * This is the only routine which is NOT static. * Must be called exactly once before pci_init(). */ -void __init dino_init(void) +static int __init dino_init(void) { - register_parisc_driver(&dino_driver); + return register_parisc_driver(&dino_driver); } - +arch_initcall(dino_init); diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c index 45e487388c6e..9eab974e6baf 100644 --- a/drivers/parisc/eisa.c +++ b/drivers/parisc/eisa.c @@ -400,10 +400,11 @@ static struct parisc_driver eisa_driver __refdata = { .probe = eisa_probe, }; -void __init parisc_eisa_init(void) +static int __init parisc_eisa_init(void) { - register_parisc_driver(&eisa_driver); + return register_parisc_driver(&eisa_driver); } +arch_initcall(parisc_eisa_init); static unsigned int eisa_irq_configured; diff --git a/drivers/parisc/eisa_eeprom.c b/drivers/parisc/eisa_eeprom.c index 443b15422fc1..601cbb22574f 100644 --- a/drivers/parisc/eisa_eeprom.c +++ b/drivers/parisc/eisa_eeprom.c @@ -15,8 +15,6 @@ #include <linux/uaccess.h> #include <asm/eisa_eeprom.h> -#define EISA_EEPROM_MINOR 241 - static loff_t eisa_eeprom_llseek(struct file *file, loff_t offset, int origin) { return fixed_size_llseek(file, offset, origin, HPEE_MAX_LENGTH); diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c index ec175ae99873..8ba778170447 100644 --- a/drivers/parisc/gsc.c +++ b/drivers/parisc/gsc.c @@ -154,7 +154,9 @@ static int gsc_set_affinity_irq(struct irq_data *d, const struct cpumask *dest, gsc_dev->eim = ((u32) gsc_dev->gsc_irq.txn_addr) | gsc_dev->gsc_irq.txn_data; /* switch IRQ's for devices below LASI/WAX to other CPU */ - gsc_writel(gsc_dev->eim, gsc_dev->hpa + OFFSET_IAR); + /* ASP chip (svers 0x70) does not support reprogramming */ + if (gsc_dev->gsc->id.sversion != 0x70) + gsc_writel(gsc_dev->eim, gsc_dev->hpa + OFFSET_IAR); irq_data_update_effective_affinity(d, &tmask); @@ -258,18 +260,3 @@ int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic) return 0; } - -extern struct parisc_driver lasi_driver; -extern struct parisc_driver asp_driver; -extern struct parisc_driver wax_driver; - -void __init gsc_init(void) -{ -#ifdef CONFIG_GSC_LASI - register_parisc_driver(&lasi_driver); - register_parisc_driver(&asp_driver); -#endif -#ifdef CONFIG_GSC_WAX - register_parisc_driver(&wax_driver); -#endif -} diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c index e60e68664654..0f9d80384e3d 100644 --- a/drivers/parisc/hppb.c +++ b/drivers/parisc/hppb.c @@ -96,9 +96,10 @@ static struct parisc_driver hppb_driver __refdata = { /** * hppb_init - HP-PB bus initialization procedure. * - * Register this driver. + * Register this driver. */ -void __init hppb_init(void) +static int __init hppb_init(void) { - register_parisc_driver(&hppb_driver); + return register_parisc_driver(&hppb_driver); } +arch_initcall(hppb_init); diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h index 0905be256de0..0691884f5095 100644 --- a/drivers/parisc/iommu-helpers.h +++ b/drivers/parisc/iommu-helpers.h @@ -14,13 +14,13 @@ static inline unsigned int iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, unsigned long hint, - void (*iommu_io_pdir_entry)(u64 *, space_t, unsigned long, + void (*iommu_io_pdir_entry)(__le64 *, space_t, phys_addr_t, unsigned long)) { struct scatterlist *dma_sg = startsg; /* pointer to current DMA */ unsigned int n_mappings = 0; unsigned long dma_offset = 0, dma_len = 0; - u64 *pdirp = NULL; + __le64 *pdirp = NULL; /* Horrible hack. For efficiency's sake, dma_sg starts one * entry below the true start (it is immediately incremented @@ -28,11 +28,11 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, dma_sg--; while (nents-- > 0) { - unsigned long vaddr; + phys_addr_t paddr; long size; - DBG_RUN_SG(" %d : %08lx/%05x %p/%05x\n", nents, - (unsigned long)sg_dma_address(startsg), cnt, + DBG_RUN_SG(" %d : %08lx %p/%05x\n", nents, + (unsigned long)sg_dma_address(startsg), sg_virt(startsg), startsg->length ); @@ -67,7 +67,7 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, BUG_ON(pdirp == NULL); - vaddr = (unsigned long)sg_virt(startsg); + paddr = sg_phys(startsg); sg_dma_len(dma_sg) += startsg->length; size = startsg->length + dma_offset; dma_offset = 0; @@ -76,8 +76,8 @@ iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents, #endif do { iommu_io_pdir_entry(pdirp, KERNEL_SPACE, - vaddr, hint); - vaddr += IOVP_SIZE; + paddr, hint); + paddr += IOVP_SIZE; size -= IOVP_SIZE; pdirp++; } while(unlikely(size > 0)); diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c index bcc1dae00780..a4011461189b 100644 --- a/drivers/parisc/iosapic.c +++ b/drivers/parisc/iosapic.c @@ -202,9 +202,9 @@ static inline void iosapic_write(void __iomem *iosapic, unsigned int reg, u32 va static DEFINE_SPINLOCK(iosapic_lock); -static inline void iosapic_eoi(void __iomem *addr, unsigned int data) +static inline void iosapic_eoi(__le32 __iomem *addr, __le32 data) { - __raw_writel(data, addr); + __raw_writel((__force u32)data, addr); } /* @@ -348,13 +348,10 @@ iosapic_load_irt(unsigned long cell_num, struct irt_entry **irt) } - -void __init iosapic_init(void) +static int __init iosapic_init(void) { unsigned long cell = 0; - DBG("iosapic_init()\n"); - #ifdef __LP64__ if (is_pdc_pat()) { int status; @@ -371,7 +368,10 @@ void __init iosapic_init(void) irt_num_entry = iosapic_load_irt(cell, &irt_cell); if (irt_num_entry == 0) irt_cell = NULL; /* old PDC w/o iosapic */ + + return 0; } +arch_initcall(iosapic_init); /* @@ -890,7 +890,7 @@ iosapic_rd_version(struct iosapic_info *isi) ** o allocate and initialize isi_vector[] ** o allocate irq region */ -void *iosapic_register(unsigned long hpa) +void *iosapic_register(unsigned long hpa, void __iomem *vaddr) { struct iosapic_info *isi = NULL; struct irt_entry *irte = irt_cell; @@ -919,7 +919,7 @@ void *iosapic_register(unsigned long hpa) return NULL; } - isi->addr = ioremap(hpa, 4096); + isi->addr = vaddr; isi->isi_hpa = hpa; isi->isi_version = iosapic_rd_version(isi); isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1; diff --git a/drivers/parisc/iosapic_private.h b/drivers/parisc/iosapic_private.h index 73ecc657ad95..bd8ff40162b4 100644 --- a/drivers/parisc/iosapic_private.h +++ b/drivers/parisc/iosapic_private.h @@ -118,8 +118,8 @@ struct iosapic_irt { struct vector_info { struct iosapic_info *iosapic; /* I/O SAPIC this vector is on */ struct irt_entry *irte; /* IRT entry */ - u32 __iomem *eoi_addr; /* precalculate EOI reg address */ - u32 eoi_data; /* IA64: ? PA: swapped txn_data */ + __le32 __iomem *eoi_addr; /* precalculate EOI reg address */ + __le32 eoi_data; /* IA64: ? PA: swapped txn_data */ int txn_irq; /* virtual IRQ number for processor */ ulong txn_addr; /* IA64: id_eid PA: partial HPA */ u32 txn_data; /* CPU interrupt bit */ diff --git a/drivers/parisc/lasi.c b/drivers/parisc/lasi.c index 6ef621adb63a..73c93e9cfa51 100644 --- a/drivers/parisc/lasi.c +++ b/drivers/parisc/lasi.c @@ -17,6 +17,7 @@ #include <linux/module.h> #include <linux/pm.h> #include <linux/types.h> +#include <linux/reboot.h> #include <asm/io.h> #include <asm/hardware.h> @@ -145,23 +146,19 @@ static void __init lasi_led_init(unsigned long lasi_hpa) * 1 to PWR_ON_L in the Power Control Register * */ - -static unsigned long lasi_power_off_hpa __read_mostly; - -static void lasi_power_off(void) +static int lasi_power_off(struct sys_off_data *data) { - unsigned long datareg; + struct gsc_asic *lasi = data->cb_data; - /* calculate addr of the Power Control Register */ - datareg = lasi_power_off_hpa + 0x0000C000; + /* Power down the machine via Power Control Register */ + gsc_writel(0x02, lasi->hpa + 0x0000C000); - /* Power down the machine */ - gsc_writel(0x02, datareg); + /* might not be reached: */ + return NOTIFY_DONE; } static int __init lasi_init_chip(struct parisc_device *dev) { - extern void (*chassis_power_off)(void); struct gsc_asic *lasi; int ret; @@ -212,13 +209,10 @@ static int __init lasi_init_chip(struct parisc_device *dev) gsc_fixup_irqs(dev, lasi, lasi_choose_irq); - /* initialize the power off function */ - /* FIXME: Record the LASI HPA for the power off function. This should - * ensure that only the first LASI (the one controlling the power off) - * should set the HPA here */ - lasi_power_off_hpa = lasi->hpa; - chassis_power_off = lasi_power_off; - + /* register the LASI power off function */ + register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, + SYS_OFF_PRIO_DEFAULT, lasi_power_off, lasi); + return ret; } @@ -226,9 +220,16 @@ static struct parisc_device_id lasi_tbl[] __initdata = { { HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00081 }, { 0, } }; +MODULE_DEVICE_TABLE(parisc, lasi_tbl); -struct parisc_driver lasi_driver __refdata = { +static struct parisc_driver lasi_driver __refdata = { .name = "lasi", .id_table = lasi_tbl, .probe = lasi_init_chip, }; + +static int __init lasi_init(void) +{ + return register_parisc_driver(&lasi_driver); +} +arch_initcall(lasi_init); diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index 702bfd64e6e1..3fc3765fddaa 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -1535,7 +1535,8 @@ lba_driver_probe(struct parisc_device *dev) } /* Tell I/O SAPIC driver we have a IRQ handler/region. */ - tmp_obj = iosapic_register(dev->hpa.start + LBA_IOSAPIC_BASE); + tmp_obj = iosapic_register(dev->hpa.start + LBA_IOSAPIC_BASE, + addr + LBA_IOSAPIC_BASE); /* NOTE: PCI devices (e.g. 103c:1005 graphics card) which don't ** have an IRT entry will get NULL back from iosapic code. @@ -1681,10 +1682,11 @@ static struct parisc_driver lba_driver __refdata = { ** One time initialization to let the world know the LBA was found. ** Must be called exactly once before pci_init(). */ -void __init lba_init(void) +static int __init lba_init(void) { - register_parisc_driver(&lba_driver); + return register_parisc_driver(&lba_driver); } +arch_initcall(lba_init); /* ** Initialize the IBASE/IMASK registers for LBA (Elroy). diff --git a/drivers/parisc/led.c b/drivers/parisc/led.c index 8bdc5e043831..016c9d5a60a8 100644 --- a/drivers/parisc/led.c +++ b/drivers/parisc/led.c @@ -1,77 +1,45 @@ // SPDX-License-Identifier: GPL-2.0-or-later /* - * Chassis LCD/LED driver for HP-PARISC workstations + * Chassis LCD/LED driver for HP-PARISC workstations * - * (c) Copyright 2000 Red Hat Software - * (c) Copyright 2000 Helge Deller <hdeller@redhat.com> - * (c) Copyright 2001-2009 Helge Deller <deller@gmx.de> - * (c) Copyright 2001 Randolph Chung <tausq@debian.org> + * (c) Copyright 2000 Red Hat Software + * (c) Copyright 2000 Helge Deller <hdeller@redhat.com> + * (c) Copyright 2001 Randolph Chung <tausq@debian.org> + * (c) Copyright 2000-2023 Helge Deller <deller@gmx.de> * - * TODO: - * - speed-up calculations with inlined assembler - * - interface to write to second row of LCD from /proc (if technically possible) + * The control of the LEDs and LCDs on PARISC machines has to be done + * completely in software. * - * Changes: - * - Audit copy_from_user in led_proc_write. - * Daniele Bellucci <bellucda@tiscali.it> - * - Switch from using a tasklet to a work queue, so the led_LCD_driver - * can sleep. - * David Pye <dmp@davidmpye.dyndns.org> + * The LEDs can be configured at runtime in /sys/class/leds/ */ #include <linux/module.h> -#include <linux/stddef.h> /* for offsetof() */ #include <linux/init.h> #include <linux/types.h> #include <linux/ioport.h> #include <linux/utsname.h> #include <linux/capability.h> #include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/inetdevice.h> -#include <linux/in.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> #include <linux/reboot.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/ctype.h> -#include <linux/blkdev.h> -#include <linux/workqueue.h> -#include <linux/rcupdate.h> +#include <linux/uaccess.h> +#include <linux/leds.h> +#include <linux/platform_device.h> + #include <asm/io.h> #include <asm/processor.h> #include <asm/hardware.h> #include <asm/param.h> /* HZ */ #include <asm/led.h> #include <asm/pdc.h> -#include <linux/uaccess.h> - -/* The control of the LEDs and LCDs on PARISC-machines have to be done - completely in software. The necessary calculations are done in a work queue - task which is scheduled regularly, and since the calculations may consume a - relatively large amount of CPU time, some of the calculations can be - turned off with the following variables (controlled via procfs) */ -static int led_type __read_mostly = -1; -static unsigned char lastleds; /* LED state from most recent update */ -static unsigned int led_heartbeat __read_mostly = 1; -static unsigned int led_diskio __read_mostly = 1; -static unsigned int led_lanrxtx __read_mostly = 1; -static char lcd_text[32] __read_mostly; -static char lcd_text_default[32] __read_mostly; -static int lcd_no_led_support __read_mostly = 0; /* KittyHawk doesn't support LED on its LCD */ +#define LED_HAS_LCD 1 +#define LED_HAS_LED 2 - -static struct workqueue_struct *led_wq; -static void led_work_func(struct work_struct *); -static DECLARE_DELAYED_WORK(led_task, led_work_func); - -#if 0 -#define DPRINTK(x) printk x -#else -#define DPRINTK(x) -#endif +static unsigned char led_type; /* bitmask of LED_HAS_XXX */ +static unsigned char lastleds; /* LED state from most recent update */ +static unsigned char lcd_new_text; +static unsigned char lcd_text[20]; +static unsigned char lcd_no_led_support; /* KittyHawk doesn't support LED on its LCD */ struct lcd_block { unsigned char command; /* stores the command byte */ @@ -80,7 +48,7 @@ struct lcd_block { }; /* Structure returned by PDC_RETURN_CHASSIS_INFO */ -/* NOTE: we use unsigned long:16 two times, since the following member +/* NOTE: we use unsigned long:16 two times, since the following member lcd_cmd_reg_addr needs to be 64bit aligned on 64bit PA2.0-machines */ struct pdc_chassis_lcd_info_ret_block { unsigned long model:16; /* DISPLAY_MODEL_XXXX */ @@ -100,15 +68,15 @@ struct pdc_chassis_lcd_info_ret_block { /* LCD_CMD and LCD_DATA for KittyHawk machines */ -#define KITTYHAWK_LCD_CMD F_EXTEND(0xf0190000UL) /* 64bit-ready */ -#define KITTYHAWK_LCD_DATA (KITTYHAWK_LCD_CMD+1) +#define KITTYHAWK_LCD_CMD F_EXTEND(0xf0190000UL) +#define KITTYHAWK_LCD_DATA (KITTYHAWK_LCD_CMD + 1) -/* lcd_info is pre-initialized to the values needed to program KittyHawk LCD's +/* lcd_info is pre-initialized to the values needed to program KittyHawk LCD's * HP seems to have used Sharp/Hitachi HD44780 LCDs most of the time. */ static struct pdc_chassis_lcd_info_ret_block -lcd_info __attribute__((aligned(8))) __read_mostly = +lcd_info __attribute__((aligned(8))) = { - .model = DISPLAY_MODEL_LCD, + .model = DISPLAY_MODEL_NONE, .lcd_width = 16, .lcd_cmd_reg_addr = KITTYHAWK_LCD_CMD, .lcd_data_reg_addr = KITTYHAWK_LCD_DATA, @@ -117,165 +85,65 @@ lcd_info __attribute__((aligned(8))) __read_mostly = .reset_cmd2 = 0xc0, }; - /* direct access to some of the lcd_info variables */ -#define LCD_CMD_REG lcd_info.lcd_cmd_reg_addr -#define LCD_DATA_REG lcd_info.lcd_data_reg_addr +#define LCD_CMD_REG lcd_info.lcd_cmd_reg_addr +#define LCD_DATA_REG lcd_info.lcd_data_reg_addr #define LED_DATA_REG lcd_info.lcd_cmd_reg_addr /* LASI & ASP only */ -#define LED_HASLCD 1 -#define LED_NOLCD 0 - -/* The workqueue must be created at init-time */ -static int start_task(void) -{ - /* Display the default text now */ - if (led_type == LED_HASLCD) lcd_print( lcd_text_default ); - - /* KittyHawk has no LED support on its LCD */ - if (lcd_no_led_support) return 0; - - /* Create the work queue and queue the LED task */ - led_wq = create_singlethread_workqueue("led_wq"); - if (!led_wq) - return -ENOMEM; - - queue_delayed_work(led_wq, &led_task, 0); - - return 0; -} - -device_initcall(start_task); - /* ptr to LCD/LED-specific function */ -static void (*led_func_ptr) (unsigned char) __read_mostly; - -#ifdef CONFIG_PROC_FS -static int led_proc_show(struct seq_file *m, void *v) -{ - switch ((long)m->private) - { - case LED_NOLCD: - seq_printf(m, "Heartbeat: %d\n", led_heartbeat); - seq_printf(m, "Disk IO: %d\n", led_diskio); - seq_printf(m, "LAN Rx/Tx: %d\n", led_lanrxtx); - break; - case LED_HASLCD: - seq_printf(m, "%s\n", lcd_text); - break; - default: - return 0; - } - return 0; -} - -static int led_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, led_proc_show, pde_data(inode)); -} +static void (*led_func_ptr) (unsigned char); -static ssize_t led_proc_write(struct file *file, const char __user *buf, - size_t count, loff_t *pos) +static void lcd_print_now(void) { - void *data = pde_data(file_inode(file)); - char *cur, lbuf[32]; - int d; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - if (count >= sizeof(lbuf)) - count = sizeof(lbuf)-1; - - if (copy_from_user(lbuf, buf, count)) - return -EFAULT; - lbuf[count] = 0; - - cur = lbuf; - - switch ((long)data) - { - case LED_NOLCD: - d = *cur++ - '0'; - if (d != 0 && d != 1) goto parse_error; - led_heartbeat = d; - - if (*cur++ != ' ') goto parse_error; + int i; + char *str = lcd_text; - d = *cur++ - '0'; - if (d != 0 && d != 1) goto parse_error; - led_diskio = d; + if (lcd_info.model != DISPLAY_MODEL_LCD) + return; - if (*cur++ != ' ') goto parse_error; + if (!lcd_new_text) + return; + lcd_new_text = 0; - d = *cur++ - '0'; - if (d != 0 && d != 1) goto parse_error; - led_lanrxtx = d; + /* Set LCD Cursor to 1st character */ + gsc_writeb(lcd_info.reset_cmd1, LCD_CMD_REG); + udelay(lcd_info.min_cmd_delay); - break; - case LED_HASLCD: - if (*cur && cur[strlen(cur)-1] == '\n') - cur[strlen(cur)-1] = 0; - if (*cur == 0) - cur = lcd_text_default; - lcd_print(cur); - break; - default: - return 0; + /* Print the string */ + for (i = 0; i < lcd_info.lcd_width; i++) { + gsc_writeb(*str ? *str++ : ' ', LCD_DATA_REG); + udelay(lcd_info.min_cmd_delay); } - - return count; - -parse_error: - if ((long)data == LED_NOLCD) - printk(KERN_CRIT "Parse error: expect \"n n n\" (n == 0 or 1) for heartbeat,\ndisk io and lan tx/rx indicators\n"); - return -EINVAL; } -static const struct proc_ops led_proc_ops = { - .proc_open = led_proc_open, - .proc_read = seq_read, - .proc_lseek = seq_lseek, - .proc_release = single_release, - .proc_write = led_proc_write, -}; - -static int __init led_create_procfs(void) +/** + * lcd_print() + * + * @str: string to show on the LCD. If NULL, print current string again. + * + * Displays the given string on the LCD-Display of newer machines. + */ +void lcd_print(const char *str) { - struct proc_dir_entry *proc_pdc_root = NULL; - struct proc_dir_entry *ent; - - if (led_type == -1) return -1; - - proc_pdc_root = proc_mkdir("pdc", NULL); - if (!proc_pdc_root) return -1; - - if (!lcd_no_led_support) - { - ent = proc_create_data("led", 0644, proc_pdc_root, - &led_proc_ops, (void *)LED_NOLCD); /* LED */ - if (!ent) return -1; - } - - if (led_type == LED_HASLCD) - { - ent = proc_create_data("lcd", 0644, proc_pdc_root, - &led_proc_ops, (void *)LED_HASLCD); /* LCD */ - if (!ent) return -1; - } + /* copy display string to buffer for procfs */ + if (str) + strscpy(lcd_text, str, sizeof(lcd_text)); + lcd_new_text = 1; - return 0; + /* print now if LCD without any LEDs */ + if (led_type == LED_HAS_LCD) + lcd_print_now(); } -#endif -/* - ** - ** led_ASP_driver() - ** - */ #define LED_DATA 0x01 /* data to shift (0:on 1:off) */ #define LED_STROBE 0x02 /* strobe to clock data */ + +/** + * led_ASP_driver() - LED driver for the ASP controller chip + * + * @leds: bitmap representing the LED status + */ static void led_ASP_driver(unsigned char leds) { int i; @@ -290,11 +158,10 @@ static void led_ASP_driver(unsigned char leds) } } - -/* - ** - ** led_LASI_driver() - ** +/** + * led_LASI_driver() - LED driver for the LASI controller chip + * + * @leds: bitmap representing the LED status */ static void led_LASI_driver(unsigned char leds) { @@ -302,395 +169,295 @@ static void led_LASI_driver(unsigned char leds) gsc_writeb( leds, LED_DATA_REG ); } - -/* - ** - ** led_LCD_driver() - ** +/** + * led_LCD_driver() - LED & LCD driver for LCD chips + * + * @leds: bitmap representing the LED status */ static void led_LCD_driver(unsigned char leds) { - static int i; - static unsigned char mask[4] = { LED_HEARTBEAT, LED_DISK_IO, + static const unsigned char mask[4] = { + LED_HEARTBEAT, LED_DISK_IO, LED_LAN_RCV, LED_LAN_TX }; - - static struct lcd_block * blockp[4] = { + + static struct lcd_block * const blockp[4] = { &lcd_info.heartbeat, &lcd_info.disk_io, &lcd_info.lan_rcv, &lcd_info.lan_tx }; + static unsigned char latest_leds; + int i; - /* Convert min_cmd_delay to milliseconds */ - unsigned int msec_cmd_delay = 1 + (lcd_info.min_cmd_delay / 1000); - - for (i=0; i<4; ++i) - { - if ((leds & mask[i]) != (lastleds & mask[i])) - { - gsc_writeb( blockp[i]->command, LCD_CMD_REG ); - msleep(msec_cmd_delay); - - gsc_writeb( leds & mask[i] ? blockp[i]->on : - blockp[i]->off, LCD_DATA_REG ); - msleep(msec_cmd_delay); - } + for (i = 0; i < 4; ++i) { + if ((leds & mask[i]) == (latest_leds & mask[i])) + continue; + + gsc_writeb( blockp[i]->command, LCD_CMD_REG ); + udelay(lcd_info.min_cmd_delay); + + gsc_writeb( leds & mask[i] ? blockp[i]->on : + blockp[i]->off, LCD_DATA_REG ); + udelay(lcd_info.min_cmd_delay); } + latest_leds = leds; + + lcd_print_now(); } -/* - ** - ** led_get_net_activity() - ** - ** calculate if there was TX- or RX-throughput on the network interfaces - ** (analog to dev_get_info() from net/core/dev.c) - ** +/** + * lcd_system_halt() + * + * @nb: pointer to the notifier_block structure + * @event: the event (SYS_RESTART, SYS_HALT or SYS_POWER_OFF) + * @buf: pointer to a buffer (not used) + * + * Called by the reboot notifier chain at shutdown. Stops all + * LED/LCD activities. */ -static __inline__ int led_get_net_activity(void) -{ -#ifndef CONFIG_NET - return 0; -#else - static u64 rx_total_last, tx_total_last; - u64 rx_total, tx_total; - struct net_device *dev; - int retval; - - rx_total = tx_total = 0; - - /* we are running as a workqueue task, so we can use an RCU lookup */ - rcu_read_lock(); - for_each_netdev_rcu(&init_net, dev) { - const struct rtnl_link_stats64 *stats; - struct rtnl_link_stats64 temp; - struct in_device *in_dev = __in_dev_get_rcu(dev); - if (!in_dev || !in_dev->ifa_list) - continue; - if (ipv4_is_loopback(in_dev->ifa_list->ifa_local)) - continue; - stats = dev_get_stats(dev, &temp); - rx_total += stats->rx_packets; - tx_total += stats->tx_packets; - } - rcu_read_unlock(); - - retval = 0; +static int lcd_system_halt(struct notifier_block *nb, unsigned long event, void *buf) +{ + const char *txt; - if (rx_total != rx_total_last) { - rx_total_last = rx_total; - retval |= LED_LAN_RCV; + switch (event) { + case SYS_RESTART: txt = "SYSTEM RESTART"; + break; + case SYS_HALT: txt = "SYSTEM HALT"; + break; + case SYS_POWER_OFF: txt = "SYSTEM POWER OFF"; + break; + default: return NOTIFY_DONE; } - if (tx_total != tx_total_last) { - tx_total_last = tx_total; - retval |= LED_LAN_TX; - } + lcd_print(txt); - return retval; -#endif + return NOTIFY_OK; } +static struct notifier_block lcd_system_halt_notifier = { + .notifier_call = lcd_system_halt, +}; -/* - ** - ** led_get_diskio_activity() - ** - ** calculate if there was disk-io in the system - ** - */ -static __inline__ int led_get_diskio_activity(void) -{ - static unsigned long last_pgpgin, last_pgpgout; - unsigned long events[NR_VM_EVENT_ITEMS]; - int changed; - - all_vm_events(events); - - /* Just use a very simple calculation here. Do not care about overflow, - since we only want to know if there was activity or not. */ - changed = (events[PGPGIN] != last_pgpgin) || - (events[PGPGOUT] != last_pgpgout); - last_pgpgin = events[PGPGIN]; - last_pgpgout = events[PGPGOUT]; - - return (changed ? LED_DISK_IO : 0); -} - +static void set_led(struct led_classdev *led_cdev, enum led_brightness brightness); +struct hppa_led { + struct led_classdev led_cdev; + unsigned char led_bit; +}; +#define to_hppa_led(d) container_of(d, struct hppa_led, led_cdev) -/* - ** led_work_func() - ** - ** manages when and which chassis LCD/LED gets updated +typedef void (*set_handler)(struct led_classdev *, enum led_brightness); +struct led_type { + const char *name; + set_handler handler; + const char *default_trigger; +}; - TODO: - - display load average (older machines like 715/64 have 4 "free" LED's for that) - - optimizations - */ +#define NUM_LEDS_PER_BOARD 8 +struct hppa_drvdata { + struct hppa_led leds[NUM_LEDS_PER_BOARD]; +}; -#define HEARTBEAT_LEN (HZ*10/100) -#define HEARTBEAT_2ND_RANGE_START (HZ*28/100) -#define HEARTBEAT_2ND_RANGE_END (HEARTBEAT_2ND_RANGE_START + HEARTBEAT_LEN) +static void set_led(struct led_classdev *led_cdev, enum led_brightness brightness) +{ + struct hppa_led *p = to_hppa_led(led_cdev); + unsigned char led_bit = p->led_bit; -#define LED_UPDATE_INTERVAL (1 + (HZ*19/1000)) + if (brightness == LED_OFF) + lastleds &= ~led_bit; + else + lastleds |= led_bit; -static void led_work_func (struct work_struct *unused) -{ - static unsigned long last_jiffies; - static unsigned long count_HZ; /* counter in range 0..HZ */ - unsigned char currentleds = 0; /* stores current value of the LEDs */ + if (led_func_ptr) + led_func_ptr(lastleds); +} - /* exit if not initialized */ - if (!led_func_ptr) - return; - /* increment the heartbeat timekeeper */ - count_HZ += jiffies - last_jiffies; - last_jiffies = jiffies; - if (count_HZ >= HZ) - count_HZ = 0; +static int hppa_led_generic_probe(struct platform_device *pdev, + struct led_type *types) +{ + struct hppa_drvdata *p; + int i, err; - if (likely(led_heartbeat)) - { - /* flash heartbeat-LED like a real heart - * (2 x short then a long delay) - */ - if (count_HZ < HEARTBEAT_LEN || - (count_HZ >= HEARTBEAT_2ND_RANGE_START && - count_HZ < HEARTBEAT_2ND_RANGE_END)) - currentleds |= LED_HEARTBEAT; - } + p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL); + if (!p) + return -ENOMEM; - if (likely(led_lanrxtx)) currentleds |= led_get_net_activity(); - if (likely(led_diskio)) currentleds |= led_get_diskio_activity(); - - /* blink LEDs if we got an Oops (HPMC) */ - if (unlikely(oops_in_progress)) { - if (boot_cpu_data.cpu_type >= pcxl2) { - /* newer machines don't have loadavg. LEDs, so we - * let all LEDs blink twice per second instead */ - currentleds = (count_HZ <= (HZ/2)) ? 0 : 0xff; - } else { - /* old machines: blink loadavg. LEDs twice per second */ - if (count_HZ <= (HZ/2)) - currentleds &= ~(LED4|LED5|LED6|LED7); - else - currentleds |= (LED4|LED5|LED6|LED7); + for (i = 0; i < NUM_LEDS_PER_BOARD; i++) { + struct led_classdev *lp = &p->leds[i].led_cdev; + + p->leds[i].led_bit = BIT(i); + lp->name = types[i].name; + lp->brightness = LED_FULL; + lp->brightness_set = types[i].handler; + lp->default_trigger = types[i].default_trigger; + err = led_classdev_register(&pdev->dev, lp); + if (err) { + dev_err(&pdev->dev, "Could not register %s LED\n", + lp->name); + for (i--; i >= 0; i--) + led_classdev_unregister(&p->leds[i].led_cdev); + return err; } } - if (currentleds != lastleds) - { - led_func_ptr(currentleds); /* Update the LCD/LEDs */ - lastleds = currentleds; - } + platform_set_drvdata(pdev, p); - queue_delayed_work(led_wq, &led_task, LED_UPDATE_INTERVAL); + return 0; } -/* - ** led_halt() - ** - ** called by the reboot notifier chain at shutdown and stops all - ** LED/LCD activities. - ** - */ +static void platform_led_remove(struct platform_device *pdev) +{ + struct hppa_drvdata *p = platform_get_drvdata(pdev); + int i; -static int led_halt(struct notifier_block *, unsigned long, void *); + for (i = 0; i < NUM_LEDS_PER_BOARD; i++) + led_classdev_unregister(&p->leds[i].led_cdev); +} -static struct notifier_block led_notifier = { - .notifier_call = led_halt, +static struct led_type mainboard_led_types[NUM_LEDS_PER_BOARD] = { + { + .name = "platform-lan-tx", + .handler = set_led, + .default_trigger = "tx", + }, + { + .name = "platform-lan-rx", + .handler = set_led, + .default_trigger = "rx", + }, + { + .name = "platform-disk", + .handler = set_led, + .default_trigger = "disk-activity", + }, + { + .name = "platform-heartbeat", + .handler = set_led, + .default_trigger = "heartbeat", + }, + { + .name = "platform-LED4", + .handler = set_led, + .default_trigger = "panic", + }, + { + .name = "platform-LED5", + .handler = set_led, + .default_trigger = "panic", + }, + { + .name = "platform-LED6", + .handler = set_led, + .default_trigger = "panic", + }, + { + .name = "platform-LED7", + .handler = set_led, + .default_trigger = "panic", + }, }; -static int notifier_disabled = 0; -static int led_halt(struct notifier_block *nb, unsigned long event, void *buf) +static int platform_led_probe(struct platform_device *pdev) { - char *txt; + return hppa_led_generic_probe(pdev, mainboard_led_types); +} - if (notifier_disabled) - return NOTIFY_OK; +MODULE_ALIAS("platform:platform-leds"); - notifier_disabled = 1; - switch (event) { - case SYS_RESTART: txt = "SYSTEM RESTART"; - break; - case SYS_HALT: txt = "SYSTEM HALT"; - break; - case SYS_POWER_OFF: txt = "SYSTEM POWER OFF"; - break; - default: return NOTIFY_DONE; - } - - /* Cancel the work item and delete the queue */ - if (led_wq) { - cancel_delayed_work_sync(&led_task); - destroy_workqueue(led_wq); - led_wq = NULL; - } - - if (lcd_info.model == DISPLAY_MODEL_LCD) - lcd_print(txt); - else - if (led_func_ptr) - led_func_ptr(0xff); /* turn all LEDs ON */ - - return NOTIFY_OK; -} +static struct platform_driver hppa_mainboard_led_driver = { + .probe = platform_led_probe, + .remove = platform_led_remove, + .driver = { + .name = "platform-leds", + }, +}; -/* - ** register_led_driver() - ** - ** registers an external LED or LCD for usage by this driver. - ** currently only LCD-, LASI- and ASP-style LCD/LED's are supported. - ** - */ +static struct platform_driver * const drivers[] = { + &hppa_mainboard_led_driver, +}; +static struct platform_device platform_leds = { + .name = "platform-leds", +}; + +/** + * register_led_driver() + * + * @model: model type, one of the DISPLAY_MODEL_XXXX values + * @cmd_reg: physical address of cmd register for the LED/LCD + * @data_reg: physical address of data register for the LED/LCD + * + * Registers a chassis LED or LCD which should be driven by this driver. + * Only PDC-based, LASI- or ASP-style LEDs and LCDs are supported. + */ int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long data_reg) { - static int initialized; - - if (initialized || !data_reg) + if (led_func_ptr || !data_reg) + return 1; + + /* No LEDs when running in QEMU */ + if (running_on_qemu) return 1; - + lcd_info.model = model; /* store the values */ LCD_CMD_REG = (cmd_reg == LED_CMD_REG_NONE) ? 0 : cmd_reg; switch (lcd_info.model) { case DISPLAY_MODEL_LCD: LCD_DATA_REG = data_reg; - printk(KERN_INFO "LCD display at %lx,%lx registered\n", + pr_info("led: LCD display at %#lx and %#lx\n", LCD_CMD_REG , LCD_DATA_REG); led_func_ptr = led_LCD_driver; - led_type = LED_HASLCD; + if (lcd_no_led_support) + led_type = LED_HAS_LCD; + else + led_type = LED_HAS_LCD | LED_HAS_LED; break; case DISPLAY_MODEL_LASI: - /* Skip to register LED in QEMU */ - if (running_on_qemu) - return 1; LED_DATA_REG = data_reg; led_func_ptr = led_LASI_driver; - printk(KERN_INFO "LED display at %lx registered\n", LED_DATA_REG); - led_type = LED_NOLCD; + pr_info("led: LED display at %#lx\n", LED_DATA_REG); + led_type = LED_HAS_LED; break; case DISPLAY_MODEL_OLD_ASP: LED_DATA_REG = data_reg; led_func_ptr = led_ASP_driver; - printk(KERN_INFO "LED (ASP-style) display at %lx registered\n", + pr_info("led: LED (ASP-style) display at %#lx\n", LED_DATA_REG); - led_type = LED_NOLCD; + led_type = LED_HAS_LED; break; default: - printk(KERN_ERR "%s: Wrong LCD/LED model %d !\n", - __func__, lcd_info.model); + pr_err("led: Unknown LCD/LED model type %d\n", lcd_info.model); return 1; } - - /* mark the LCD/LED driver now as initialized and - * register to the reboot notifier chain */ - initialized++; - register_reboot_notifier(&led_notifier); - - /* Ensure the work is queued */ - if (led_wq) { - queue_delayed_work(led_wq, &led_task, 0); - } - - return 0; -} - -/* - ** register_led_regions() - ** - ** register_led_regions() registers the LCD/LED regions for /procfs. - ** At bootup - where the initialisation of the LCD/LED normally happens - - ** not all internal structures of request_region() are properly set up, - ** so that we delay the led-registration until after busdevices_init() - ** has been executed. - ** - */ - -void __init register_led_regions(void) -{ - switch (lcd_info.model) { - case DISPLAY_MODEL_LCD: - request_mem_region((unsigned long)LCD_CMD_REG, 1, "lcd_cmd"); - request_mem_region((unsigned long)LCD_DATA_REG, 1, "lcd_data"); - break; - case DISPLAY_MODEL_LASI: - case DISPLAY_MODEL_OLD_ASP: - request_mem_region((unsigned long)LED_DATA_REG, 1, "led_data"); - break; - } -} - - -/* - ** - ** lcd_print() - ** - ** Displays the given string on the LCD-Display of newer machines. - ** lcd_print() disables/enables the timer-based led work queue to - ** avoid a race condition while writing the CMD/DATA register pair. - ** - */ -int lcd_print( const char *str ) -{ - int i; - - if (!led_func_ptr || lcd_info.model != DISPLAY_MODEL_LCD) - return 0; - - /* temporarily disable the led work task */ - if (led_wq) - cancel_delayed_work_sync(&led_task); - /* copy display string to buffer for procfs */ - strscpy(lcd_text, str, sizeof(lcd_text)); - - /* Set LCD Cursor to 1st character */ - gsc_writeb(lcd_info.reset_cmd1, LCD_CMD_REG); - udelay(lcd_info.min_cmd_delay); - - /* Print the string */ - for (i=0; i < lcd_info.lcd_width; i++) { - if (str && *str) - gsc_writeb(*str++, LCD_DATA_REG); - else - gsc_writeb(' ', LCD_DATA_REG); - udelay(lcd_info.min_cmd_delay); - } - - /* re-queue the work */ - if (led_wq) { - queue_delayed_work(led_wq, &led_task, 0); - } + platform_register_drivers(drivers, ARRAY_SIZE(drivers)); - return lcd_info.lcd_width; + return register_reboot_notifier(&lcd_system_halt_notifier); } -/* - ** led_init() - ** - ** led_init() is called very early in the bootup-process from setup.c - ** and asks the PDC for an usable chassis LCD or LED. - ** If the PDC doesn't return any info, then the LED - ** is detected by lasi.c or asp.c and registered with the - ** above functions lasi_led_init() or asp_led_init(). - ** KittyHawk machines have often a buggy PDC, so that - ** we explicitly check for those machines here. +/** + * early_led_init() + * + * early_led_init() is called early in the bootup-process and asks the + * PDC for an usable chassis LCD or LED. If the PDC doesn't return any + * info, then a LED might be detected by the LASI or ASP drivers later. + * KittyHawk machines have often a buggy PDC, so that we explicitly check + * for those machines here. */ - -int __init led_init(void) +static int __init early_led_init(void) { struct pdc_chassis_info chassis_info; int ret; - snprintf(lcd_text_default, sizeof(lcd_text_default), + scnprintf(lcd_text, sizeof(lcd_text), "Linux %s", init_utsname()->release); + lcd_new_text = 1; /* Work around the buggy PDC of KittyHawk-machines */ switch (CPU_HVERSION) { @@ -699,82 +466,86 @@ int __init led_init(void) case 0x582: /* KittyHawk DC3 100 (K400) */ case 0x583: /* KittyHawk DC3 120 (K410) */ case 0x58B: /* KittyHawk DC2 100 (K200) */ - printk(KERN_INFO "%s: KittyHawk-Machine (hversion 0x%x) found, " - "LED detection skipped.\n", __FILE__, CPU_HVERSION); + pr_info("LCD on KittyHawk-Machine found.\n"); + lcd_info.model = DISPLAY_MODEL_LCD; + /* KittyHawk has no LED support on its LCD, so skip LED detection */ lcd_no_led_support = 1; goto found; /* use the preinitialized values of lcd_info */ } /* initialize the struct, so that we can check for valid return values */ - lcd_info.model = DISPLAY_MODEL_NONE; chassis_info.actcnt = chassis_info.maxcnt = 0; ret = pdc_chassis_info(&chassis_info, &lcd_info, sizeof(lcd_info)); - if (ret == PDC_OK) { - DPRINTK((KERN_INFO "%s: chassis info: model=%d (%s), " - "lcd_width=%d, cmd_delay=%u,\n" - "%s: sizecnt=%d, actcnt=%ld, maxcnt=%ld\n", - __FILE__, lcd_info.model, - (lcd_info.model==DISPLAY_MODEL_LCD) ? "LCD" : - (lcd_info.model==DISPLAY_MODEL_LASI) ? "LED" : "unknown", - lcd_info.lcd_width, lcd_info.min_cmd_delay, - __FILE__, sizeof(lcd_info), - chassis_info.actcnt, chassis_info.maxcnt)); - DPRINTK((KERN_INFO "%s: cmd=%p, data=%p, reset1=%x, reset2=%x, act_enable=%d\n", - __FILE__, lcd_info.lcd_cmd_reg_addr, - lcd_info.lcd_data_reg_addr, lcd_info.reset_cmd1, - lcd_info.reset_cmd2, lcd_info.act_enable )); - - /* check the results. Some machines have a buggy PDC */ - if (chassis_info.actcnt <= 0 || chassis_info.actcnt != chassis_info.maxcnt) - goto not_found; + if (ret != PDC_OK) { +not_found: + lcd_info.model = DISPLAY_MODEL_NONE; + return 1; + } - switch (lcd_info.model) { - case DISPLAY_MODEL_LCD: /* LCD display */ - if (chassis_info.actcnt < - offsetof(struct pdc_chassis_lcd_info_ret_block, _pad)-1) - goto not_found; - if (!lcd_info.act_enable) { - DPRINTK((KERN_INFO "PDC prohibited usage of the LCD.\n")); - goto not_found; - } - break; - - case DISPLAY_MODEL_NONE: /* no LED or LCD available */ - printk(KERN_INFO "PDC reported no LCD or LED.\n"); + /* check the results. Some machines have a buggy PDC */ + if (chassis_info.actcnt <= 0 || chassis_info.actcnt != chassis_info.maxcnt) + goto not_found; + + switch (lcd_info.model) { + case DISPLAY_MODEL_LCD: /* LCD display */ + if (chassis_info.actcnt < + offsetof(struct pdc_chassis_lcd_info_ret_block, _pad)-1) goto not_found; + if (!lcd_info.act_enable) { + /* PDC tells LCD should not be used. */ + goto not_found; + } + break; - case DISPLAY_MODEL_LASI: /* Lasi style 8 bit LED display */ - if (chassis_info.actcnt != 8 && chassis_info.actcnt != 32) - goto not_found; - break; + case DISPLAY_MODEL_NONE: /* no LED or LCD available */ + goto not_found; - default: - printk(KERN_WARNING "PDC reported unknown LCD/LED model %d\n", - lcd_info.model); + case DISPLAY_MODEL_LASI: /* Lasi style 8 bit LED display */ + if (chassis_info.actcnt != 8 && chassis_info.actcnt != 32) goto not_found; - } /* switch() */ - -found: - /* register the LCD/LED driver */ - register_led_driver(lcd_info.model, LCD_CMD_REG, LCD_DATA_REG); - return 0; + break; - } else { /* if() */ - DPRINTK((KERN_INFO "pdc_chassis_info call failed with retval = %d\n", ret)); + default: + pr_warn("PDC reported unknown LCD/LED model %d\n", + lcd_info.model); + goto not_found; } -not_found: - lcd_info.model = DISPLAY_MODEL_NONE; - return 1; +found: + /* register the LCD/LED driver */ + return register_led_driver(lcd_info.model, LCD_CMD_REG, LCD_DATA_REG); } +arch_initcall(early_led_init); -static void __exit led_exit(void) +/** + * register_led_regions() + * + * Register_led_regions() registers the LCD/LED regions for /procfs. + * At bootup - where the initialisation of the LCD/LED often happens + * not all internal structures of request_region() are properly set up, + * so that we delay the led-registration until after busdevices_init() + * has been executed. + */ +static void __init register_led_regions(void) { - unregister_reboot_notifier(&led_notifier); - return; + switch (lcd_info.model) { + case DISPLAY_MODEL_LCD: + request_mem_region((unsigned long)LCD_CMD_REG, 1, "lcd_cmd"); + request_mem_region((unsigned long)LCD_DATA_REG, 1, "lcd_data"); + break; + case DISPLAY_MODEL_LASI: + case DISPLAY_MODEL_OLD_ASP: + request_mem_region((unsigned long)LED_DATA_REG, 1, "led_data"); + break; + } } -#ifdef CONFIG_PROC_FS -module_init(led_create_procfs) -#endif +static int __init startup_leds(void) +{ + if (platform_device_register(&platform_leds)) + printk(KERN_INFO "LED: failed to register LEDs\n"); + register_led_regions(); + return 0; +} +device_initcall(startup_leds); diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c index 633266447e2f..16f4496bca95 100644 --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -483,7 +483,7 @@ static struct attribute *paths_subsys_attrs[] = { ATTRIBUTE_GROUPS(paths_subsys); /* Specific kobject type for our PDC paths */ -static struct kobj_type ktype_pdcspath = { +static const struct kobj_type ktype_pdcspath = { .sysfs_ops = &pdcspath_attr_ops, .default_groups = paths_subsys_groups, }; diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c index 6f5e5f0230d3..9d6c7bf72e29 100644 --- a/drivers/parisc/power.c +++ b/drivers/parisc/power.c @@ -1,38 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* - * linux/drivers/parisc/power.c - * HP PARISC soft power switch support driver - * - * Copyright (c) 2001-2007 Helge Deller <deller@gmx.de> - * All rights reserved. - * - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL"). - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * HP PARISC soft power switch driver * + * Copyright (c) 2001-2023 Helge Deller <deller@gmx.de> * * HINT: * Support of the soft power switch button may be enabled or disabled at * runtime through the "/proc/sys/kernel/power" procfs entry. - */ + */ #include <linux/module.h> #include <linux/init.h> @@ -62,12 +37,12 @@ #define MFCPU_X(rDiagReg, t_ch, t_th, code) \ (DIAG_CODE(code) + ((rDiagReg)<<21) + ((t_ch)<<16) + ((t_th)<<0) ) - + #define MTCPU(dr, gr) MFCPU_X(dr, gr, 0, 0x12) /* move value of gr to dr[dr] */ #define MFCPU_C(dr, gr) MFCPU_X(dr, gr, 0, 0x30) /* for dr0 and dr8 only ! */ #define MFCPU_T(dr, gr) MFCPU_X(dr, 0, gr, 0xa0) /* all dr except dr0 and dr8 */ - -#define __getDIAG(dr) ( { \ + +#define __getDIAG(dr) ( { \ register unsigned long __res asm("r28");\ __asm__ __volatile__ ( \ ".word %1" : "=&r" (__res) : "i" (MFCPU_T(dr,28) ) \ @@ -85,7 +60,7 @@ static void process_shutdown(void) printk(KERN_ALERT KTHREAD_NAME ": Shutdown requested...\n"); shutdown_timer++; - + /* wait until the button was pressed for 1 second */ if (shutdown_timer == (POWERSWITCH_DOWN_SEC*POWERSWITCH_POLL_PER_SEC)) { static const char msg[] = "Shutting down..."; @@ -108,7 +83,25 @@ static struct task_struct *power_task; #define SYSCTL_FILENAME "sys/kernel/power" /* soft power switch enabled/disabled */ -int pwrsw_enabled __read_mostly = 1; +static int pwrsw_enabled __read_mostly = 1; + +static const struct ctl_table power_sysctl_table[] = { + { + .procname = "soft-power", + .data = &pwrsw_enabled, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, +}; + +static int __init init_power_sysctl(void) +{ + register_sysctl_init("kernel", power_sysctl_table); + return 0; +} + +arch_initcall(init_power_sysctl); /* main kernel thread worker. It polls the button state */ static int kpowerswd(void *param) @@ -135,7 +128,7 @@ static int kpowerswd(void *param) button_not_pressed = (gsc_readl(soft_power_reg) & 0x1); } else { /* - * On gecko style machines (e.g. 712/xx and 715/xx) + * On gecko style machines (e.g. 712/xx and 715/xx) * the power switch status is stored in Bit 0 ("the highest bit") * of CPU diagnose register 25. * Warning: Some machines never reset the DIAG flag, even if @@ -161,7 +154,7 @@ static int kpowerswd(void *param) /* - * powerfail interruption handler (irq IRQ_FROM_REGION(CPU_IRQ_REGION)+2) + * powerfail interruption handler (irq IRQ_FROM_REGION(CPU_IRQ_REGION)+2) */ #if 0 static void powerfail_interrupt(int code, void *x) @@ -197,6 +190,14 @@ static struct notifier_block parisc_panic_block = { .priority = INT_MAX, }; +/* qemu soft power-off function */ +static int qemu_power_off(struct sys_off_data *data) +{ + /* this turns the system off via SeaBIOS */ + gsc_writel(0, (unsigned long) data->cb_data); + pdc_soft_power_button(1); + return NOTIFY_DONE; +} static int __init power_init(void) { @@ -214,19 +215,25 @@ static int __init power_init(void) ret = pdc_soft_power_button(1); if (ret != PDC_OK) soft_power_reg = -1UL; - + switch (soft_power_reg) { case 0: printk(KERN_INFO DRIVER_NAME ": Gecko-style soft power switch enabled.\n"); break; - + case -1UL: printk(KERN_INFO DRIVER_NAME ": Soft power switch support not available.\n"); return -ENODEV; - + default: printk(KERN_INFO DRIVER_NAME ": Soft power switch at 0x%08lx enabled.\n", soft_power_reg); } - power_task = kthread_run(kpowerswd, (void*)soft_power_reg, KTHREAD_NAME); + power_task = NULL; + if (running_on_qemu && soft_power_reg) + register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_DEFAULT, + qemu_power_off, (void *)soft_power_reg); + if (!running_on_qemu || soft_power_reg) + power_task = kthread_run(kpowerswd, (void*)soft_power_reg, + KTHREAD_NAME); if (IS_ERR(power_task)) { printk(KERN_ERR DRIVER_NAME ": thread creation failed. Driver not loaded.\n"); pdc_soft_power_button(0); diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index bf3405f4289e..a6eb6bffa5ea 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -46,8 +46,6 @@ #include <linux/module.h> #include <asm/ropes.h> -#include <asm/mckinley.h> /* for proc_mckinley_root */ -#include <asm/runway.h> /* for proc_runway_root */ #include <asm/page.h> /* for PAGE0 */ #include <asm/pdc.h> /* for PDC_MODEL_* */ #include <asm/pdcpat.h> /* for is_pdc_pat() */ @@ -121,6 +119,8 @@ module_param(sba_reserve_agpgart, int, 0444); MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART"); #endif +static struct proc_dir_entry *proc_runway_root __ro_after_init; +static struct proc_dir_entry *proc_mckinley_root __ro_after_init; /************************************ ** SBA register read and write support @@ -202,7 +202,7 @@ static void sba_dump_pdir_entry(struct ioc *ioc, char *msg, uint pide) { /* start printing from lowest pde in rval */ - u64 *ptr = &(ioc->pdir_base[pide & (~0U * BITS_PER_LONG)]); + __le64 *ptr = &(ioc->pdir_base[pide & (~0U * BITS_PER_LONG)]); unsigned long *rptr = (unsigned long *) &(ioc->res_map[(pide >>3) & ~(sizeof(unsigned long) - 1)]); uint rcnt; @@ -532,7 +532,7 @@ typedef unsigned long space_t; * sba_io_pdir_entry - fill in one IO PDIR entry * @pdir_ptr: pointer to IO PDIR entry * @sid: process Space ID - currently only support KERNEL_SPACE - * @vba: Virtual CPU address of buffer to map + * @pba: Physical address of buffer to map * @hint: DMA hint set to use for this mapping * * SBA Mapping Routine @@ -569,20 +569,17 @@ typedef unsigned long space_t; */ static void -sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba, +sba_io_pdir_entry(__le64 *pdir_ptr, space_t sid, phys_addr_t pba, unsigned long hint) { - u64 pa; /* physical address */ register unsigned ci; /* coherent index */ - pa = lpa(vba); - pa &= IOVP_MASK; + asm("lci 0(%1), %0" : "=r" (ci) : "r" (phys_to_virt(pba))); + pba &= IOVP_MASK; + pba |= (ci >> PAGE_SHIFT) & 0xff; /* move CI (8 bits) into lowest byte */ - asm("lci 0(%1), %0" : "=r" (ci) : "r" (vba)); - pa |= (ci >> PAGE_SHIFT) & 0xff; /* move CI (8 bits) into lowest byte */ - - pa |= SBA_PDIR_VALID_BIT; /* set "valid" bit */ - *pdir_ptr = cpu_to_le64(pa); /* swap and store into I/O Pdir */ + pba |= SBA_PDIR_VALID_BIT; /* set "valid" bit */ + *pdir_ptr = cpu_to_le64(pba); /* swap and store into I/O Pdir */ /* * If the PDC_MODEL capabilities has Non-coherent IO-PDIR bit set @@ -613,7 +610,7 @@ static void sba_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt) { u32 iovp = (u32) SBA_IOVP(ioc,iova); - u64 *pdir_ptr = &ioc->pdir_base[PDIR_INDEX(iovp)]; + __le64 *pdir_ptr = &ioc->pdir_base[PDIR_INDEX(iovp)]; #ifdef ASSERT_PDIR_SANITY /* Assert first pdir entry is set. @@ -707,14 +704,14 @@ static int sba_dma_supported( struct device *dev, u64 mask) * See Documentation/core-api/dma-api-howto.rst */ static dma_addr_t -sba_map_single(struct device *dev, void *addr, size_t size, +sba_map_single(struct device *dev, phys_addr_t addr, size_t size, enum dma_data_direction direction) { struct ioc *ioc; unsigned long flags; dma_addr_t iovp; dma_addr_t offset; - u64 *pdir_start; + __le64 *pdir_start; int pide; ioc = GET_IOC(dev); @@ -722,7 +719,7 @@ sba_map_single(struct device *dev, void *addr, size_t size, return DMA_MAPPING_ERROR; /* save offset bits */ - offset = ((dma_addr_t) (long) addr) & ~IOVP_MASK; + offset = offset_in_page(addr); /* round up to nearest IOVP_SIZE */ size = (size + offset + ~IOVP_MASK) & IOVP_MASK; @@ -739,13 +736,13 @@ sba_map_single(struct device *dev, void *addr, size_t size, pide = sba_alloc_range(ioc, dev, size); iovp = (dma_addr_t) pide << IOVP_SHIFT; - DBG_RUN("%s() 0x%p -> 0x%lx\n", - __func__, addr, (long) iovp | offset); + DBG_RUN("%s() 0x%pa -> 0x%lx\n", + __func__, &addr, (long) iovp | offset); pdir_start = &(ioc->pdir_base[pide]); while (size > 0) { - sba_io_pdir_entry(pdir_start, KERNEL_SPACE, (unsigned long) addr, 0); + sba_io_pdir_entry(pdir_start, KERNEL_SPACE, addr, 0); DBG_RUN(" pdir 0x%p %02x%02x%02x%02x%02x%02x%02x%02x\n", pdir_start, @@ -778,17 +775,18 @@ sba_map_single(struct device *dev, void *addr, size_t size, static dma_addr_t -sba_map_page(struct device *dev, struct page *page, unsigned long offset, - size_t size, enum dma_data_direction direction, - unsigned long attrs) +sba_map_phys(struct device *dev, phys_addr_t phys, size_t size, + enum dma_data_direction direction, unsigned long attrs) { - return sba_map_single(dev, page_address(page) + offset, size, - direction); + if (unlikely(attrs & DMA_ATTR_MMIO)) + return DMA_MAPPING_ERROR; + + return sba_map_single(dev, phys, size, direction); } /** - * sba_unmap_page - unmap one IOVA and free resources + * sba_unmap_phys - unmap one IOVA and free resources * @dev: instance of PCI owned by the driver that's asking. * @iova: IOVA of driver buffer previously mapped. * @size: number of bytes mapped in driver buffer. @@ -798,7 +796,7 @@ sba_map_page(struct device *dev, struct page *page, unsigned long offset, * See Documentation/core-api/dma-api-howto.rst */ static void -sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size, +sba_unmap_phys(struct device *dev, dma_addr_t iova, size_t size, enum dma_data_direction direction, unsigned long attrs) { struct ioc *ioc; @@ -893,7 +891,7 @@ static void *sba_alloc(struct device *hwdev, size_t size, dma_addr_t *dma_handle if (ret) { memset(ret, 0, size); - *dma_handle = sba_map_single(hwdev, ret, size, 0); + *dma_handle = sba_map_single(hwdev, virt_to_phys(ret), size, 0); } return ret; @@ -914,7 +912,7 @@ static void sba_free(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle, unsigned long attrs) { - sba_unmap_page(hwdev, dma_handle, size, 0, 0); + sba_unmap_phys(hwdev, dma_handle, size, 0, 0); free_pages((unsigned long) vaddr, get_order(size)); } @@ -962,7 +960,7 @@ sba_map_sg(struct device *dev, struct scatterlist *sglist, int nents, /* Fast path single entry scatterlists. */ if (nents == 1) { - sg_dma_address(sglist) = sba_map_single(dev, sg_virt(sglist), + sg_dma_address(sglist) = sba_map_single(dev, sg_phys(sglist), sglist->length, direction); sg_dma_len(sglist) = sglist->length; return 1; @@ -1061,7 +1059,7 @@ sba_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents, while (nents && sg_dma_len(sglist)) { - sba_unmap_page(dev, sg_dma_address(sglist), sg_dma_len(sglist), + sba_unmap_phys(dev, sg_dma_address(sglist), sg_dma_len(sglist), direction, 0); #ifdef SBA_COLLECT_STATS ioc->usg_pages += ((sg_dma_address(sglist) & ~IOVP_MASK) + sg_dma_len(sglist) + IOVP_SIZE - 1) >> PAGE_SHIFT; @@ -1085,12 +1083,12 @@ static const struct dma_map_ops sba_ops = { .dma_supported = sba_dma_supported, .alloc = sba_alloc, .free = sba_free, - .map_page = sba_map_page, - .unmap_page = sba_unmap_page, + .map_phys = sba_map_phys, + .unmap_phys = sba_unmap_phys, .map_sg = sba_map_sg, .unmap_sg = sba_unmap_sg, .get_sgtable = dma_common_get_sgtable, - .alloc_pages = dma_common_alloc_pages, + .alloc_pages_op = dma_common_alloc_pages, .free_pages = dma_common_free_pages, }; @@ -1432,7 +1430,7 @@ sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num) ioc->pdir_size = pdir_size = (iova_space_size/IOVP_SIZE) * sizeof(u64); - DBG_INIT("%s() hpa 0x%lx mem %ldMB IOV %dMB (%d bits)\n", + DBG_INIT("%s() hpa %px mem %ldMB IOV %dMB (%d bits)\n", __func__, ioc->ioc_hpa, (unsigned long) totalram_pages() >> (20 - PAGE_SHIFT), @@ -1469,7 +1467,7 @@ sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num) ioc->iovp_mask = ~(iova_space_mask + PAGE_SIZE - 1); #endif - DBG_INIT("%s() IOV base 0x%lx mask 0x%0lx\n", + DBG_INIT("%s() IOV base %#lx mask %#0lx\n", __func__, ioc->ibase, ioc->imask); /* @@ -1581,7 +1579,7 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa, if (!IS_PLUTO(sba_dev->dev)) { ioc_ctl = READ_REG(sba_dev->sba_hpa+IOC_CTRL); - DBG_INIT("%s() hpa 0x%lx ioc_ctl 0x%Lx ->", + DBG_INIT("%s() hpa %px ioc_ctl 0x%Lx ->", __func__, sba_dev->sba_hpa, ioc_ctl); ioc_ctl &= ~(IOC_CTRL_RM | IOC_CTRL_NC | IOC_CTRL_CE); ioc_ctl |= IOC_CTRL_DD | IOC_CTRL_D4 | IOC_CTRL_TC; @@ -1666,14 +1664,14 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa, /* flush out the last writes */ READ_REG(sba_dev->ioc[i].ioc_hpa + ROPE7_CTL); - DBG_INIT(" ioc[%d] ROPE_CFG 0x%Lx ROPE_DBG 0x%Lx\n", + DBG_INIT(" ioc[%d] ROPE_CFG %#lx ROPE_DBG %lx\n", i, - READ_REG(sba_dev->ioc[i].ioc_hpa + 0x40), - READ_REG(sba_dev->ioc[i].ioc_hpa + 0x50) + (unsigned long) READ_REG(sba_dev->ioc[i].ioc_hpa + 0x40), + (unsigned long) READ_REG(sba_dev->ioc[i].ioc_hpa + 0x50) ); - DBG_INIT(" STATUS_CONTROL 0x%Lx FLUSH_CTRL 0x%Lx\n", - READ_REG(sba_dev->ioc[i].ioc_hpa + 0x108), - READ_REG(sba_dev->ioc[i].ioc_hpa + 0x400) + DBG_INIT(" STATUS_CONTROL %#lx FLUSH_CTRL %#lx\n", + (unsigned long) READ_REG(sba_dev->ioc[i].ioc_hpa + 0x108), + (unsigned long) READ_REG(sba_dev->ioc[i].ioc_hpa + 0x400) ); if (IS_PLUTO(sba_dev->dev)) { @@ -1737,7 +1735,7 @@ sba_common_init(struct sba_device *sba_dev) #ifdef ASSERT_PDIR_SANITY /* Mark first bit busy - ie no IOVA 0 */ sba_dev->ioc[i].res_map[0] = 0x80; - sba_dev->ioc[i].pdir_base[0] = 0xeeffc0addbba0080ULL; + sba_dev->ioc[i].pdir_base[0] = (__force __le64) 0xeeffc0addbba0080ULL; #endif /* Third (and last) part of PIRANHA BUG */ @@ -1897,9 +1895,7 @@ static int __init sba_driver_callback(struct parisc_device *dev) int i; char *version; void __iomem *sba_addr = ioremap(dev->hpa.start, SBA_FUNC_SIZE); -#ifdef CONFIG_PROC_FS - struct proc_dir_entry *root; -#endif + struct proc_dir_entry *root __maybe_unused; sba_dump_ranges(sba_addr); @@ -1965,21 +1961,23 @@ static int __init sba_driver_callback(struct parisc_device *dev) hppa_dma_ops = &sba_ops; -#ifdef CONFIG_PROC_FS switch (dev->id.hversion) { case PLUTO_MCKINLEY_PORT: + if (!proc_mckinley_root) + proc_mckinley_root = proc_mkdir("bus/mckinley", NULL); root = proc_mckinley_root; break; case ASTRO_RUNWAY_PORT: case IKE_MERCED_PORT: default: + if (!proc_runway_root) + proc_runway_root = proc_mkdir("bus/runway", NULL); root = proc_runway_root; break; } proc_create_single("sba_iommu", 0, root, sba_proc_info); proc_create_single("sba_iommu-bitmap", 0, root, sba_proc_bitmap_info); -#endif return 0; } @@ -1988,10 +1986,11 @@ static int __init sba_driver_callback(struct parisc_device *dev) ** This is the only routine which is NOT static. ** Must be called exactly once before pci_init(). */ -void __init sba_init(void) +static int __init sba_init(void) { - register_parisc_driver(&sba_driver); + return register_parisc_driver(&sba_driver); } +arch_initcall(sba_init); /** @@ -2006,7 +2005,7 @@ void * sba_get_iommu(struct parisc_device *pci_hba) struct parisc_device *sba_dev = parisc_parent(pci_hba); struct sba_device *sba = dev_get_drvdata(&sba_dev->dev); char t = sba_dev->id.hw_type; - int iocnum = (pci_hba->hw_path >> 3); /* rope # */ + int iocnum = (pci_hba->hw_path >> 3); /* IOC # */ WARN_ON((t != HPHW_IOA) && (t != HPHW_BCPORT)); diff --git a/drivers/parisc/wax.c b/drivers/parisc/wax.c index 73a2b01f8d9c..834dbe9a767b 100644 --- a/drivers/parisc/wax.c +++ b/drivers/parisc/wax.c @@ -4,7 +4,7 @@ * * (c) Copyright 2000 The Puffin Group Inc. * - * by Helge Deller <deller@gmx.de> + * (c) 2000-2023 by Helge Deller <deller@gmx.de> */ #include <linux/errno.h> @@ -121,14 +121,20 @@ static int __init wax_init_chip(struct parisc_device *dev) } static const struct parisc_device_id wax_tbl[] __initconst = { - { HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008e }, + { HPHW_BA, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008e }, { 0, } }; MODULE_DEVICE_TABLE(parisc, wax_tbl); -struct parisc_driver wax_driver __refdata = { +static struct parisc_driver wax_driver __refdata = { .name = "wax", .id_table = wax_tbl, .probe = wax_init_chip, }; + +static int __init wax_init(void) +{ + return register_parisc_driver(&wax_driver); +} +arch_initcall(wax_init); |