From 6090912c4abcfc6c81b156cf2bb4cda23ae6e847 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 24 Mar 2011 20:50:06 +0000 Subject: powerpc: Implement dma_mmap_coherent() This is used by Alsa to mmap buffers allocated with dma_alloc_coherent() into userspace. We need a special variant to handle machines with non-coherent DMAs as those buffers have "special" virt addresses and require non-cachable mappings Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/dma-mapping.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 6d2416a85709..dd70fac57ec8 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -42,6 +42,7 @@ extern void __dma_free_coherent(size_t size, void *vaddr); extern void __dma_sync(void *vaddr, size_t size, int direction); extern void __dma_sync_page(struct page *page, unsigned long offset, size_t size, int direction); +extern unsigned long __dma_get_coherent_pfn(unsigned long cpu_addr); #else /* ! CONFIG_NOT_COHERENT_CACHE */ /* @@ -198,6 +199,11 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) +extern int dma_mmap_coherent(struct device *, struct vm_area_struct *, + void *, dma_addr_t, size_t); +#define ARCH_HAS_DMA_MMAP_COHERENT + + static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { -- cgit v1.2.3 From 67eb54944bb9de5f568ea2c28d4f20a5b7d2611d Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Thu, 24 Mar 2011 11:51:19 +0000 Subject: powerpc: ARCH_PFN_OFFSET should be unsigned long pfns are unsigned long, but MEMORY_START is phys_addr_t. This leads to page_to_pfn() returning phys_addr_t, and thus type mismatches in a few print statements. Signed-off-by: Scott Wood Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/page.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index da4b20008541..2cd664ef0a5e 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -100,7 +100,7 @@ extern phys_addr_t kernstart_addr; #endif #ifdef CONFIG_FLATMEM -#define ARCH_PFN_OFFSET (MEMORY_START >> PAGE_SHIFT) +#define ARCH_PFN_OFFSET ((unsigned long)(MEMORY_START >> PAGE_SHIFT)) #define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr) #endif -- cgit v1.2.3 From 05e02d7f88a08b500f0a100733109e4b09ffbeb2 Mon Sep 17 00:00:00 2001 From: Varun Sethi Date: Thu, 24 Mar 2011 11:50:26 +0000 Subject: powerpc/booke: Correct the SPRN_MAS5 definition. 339 is the SPR number for MAS5 documented by Power ISA 2.06, and implemented by e500mc. It is not yet used anywhere in the kernel, so nothing should be relying on the wrong number. Signed-off-by: Varun Sethi Signed-off-by: Scott Wood Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/reg_booke.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index 86ad8128963a..3b1a9b707362 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h @@ -110,7 +110,7 @@ #define SPRN_MAS2 0x272 /* MMU Assist Register 2 */ #define SPRN_MAS3 0x273 /* MMU Assist Register 3 */ #define SPRN_MAS4 0x274 /* MMU Assist Register 4 */ -#define SPRN_MAS5 0x275 /* MMU Assist Register 5 */ +#define SPRN_MAS5 0x153 /* MMU Assist Register 5 */ #define SPRN_MAS6 0x276 /* MMU Assist Register 6 */ #define SPRN_PID1 0x279 /* Process ID Register 1 */ #define SPRN_PID2 0x27A /* Process ID Register 2 */ -- cgit v1.2.3 From 834796a8493809ae6667b65c4c044066f41d32c7 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Wed, 23 Mar 2011 18:40:47 +0000 Subject: powerpc: Wire up new syscalls These syscalls have been added recently: name_to_handle_at open_by_handle_at clock_adjtime syncfs Signed-off-by: Stephen Rothwell Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/systbl.h | 4 ++++ arch/powerpc/include/asm/unistd.h | 6 +++++- 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index aa0f1ebb4aaf..60f64b132bd4 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -348,3 +348,7 @@ COMPAT_SYS_SPU(sendmsg) COMPAT_SYS_SPU(recvmsg) COMPAT_SYS_SPU(recvmmsg) SYSCALL_SPU(accept4) +SYSCALL_SPU(name_to_handle_at) +COMPAT_SYS_SPU(open_by_handle_at) +COMPAT_SYS_SPU(clock_adjtime) +SYSCALL_SPU(syncfs) diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index 6151937657f6..3c215648ce6d 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -367,10 +367,14 @@ #define __NR_recvmsg 342 #define __NR_recvmmsg 343 #define __NR_accept4 344 +#define __NR_name_to_handle_at 345 +#define __NR_open_by_handle_at 346 +#define __NR_clock_adjtime 347 +#define __NR_syncfs 348 #ifdef __KERNEL__ -#define __NR_syscalls 345 +#define __NR_syscalls 349 #define __NR__exit __NR_exit #define NR_syscalls __NR_syscalls -- cgit v1.2.3 From 84493804bbbc10291492661440728668b2b06abe Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Sun, 6 Mar 2011 18:09:07 +0000 Subject: powerpc/mm: Move the STAB0 location to 0x8000 to make room in low memory Recent upstream builds with allmodconfig fail due to lack of space between 0x3000 and 0x6000. We have a hard block at 0x7000 but we can spare a page by moving the STAB0 from 0x6000 to 0x8000. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/mmu-hash64.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h index acac35d5b382..ae7b3efec8e5 100644 --- a/arch/powerpc/include/asm/mmu-hash64.h +++ b/arch/powerpc/include/asm/mmu-hash64.h @@ -27,7 +27,7 @@ #define STE_VSID_SHIFT 12 /* Location of cpu0's segment table */ -#define STAB0_PAGE 0x6 +#define STAB0_PAGE 0x8 #define STAB0_OFFSET (STAB0_PAGE << 12) #define STAB0_PHYS_ADDR (STAB0_OFFSET + PHYSICAL_START) -- cgit v1.2.3 From d4db35e8dc963cf2aca15fc22cc5e5a7d98f9255 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Wed, 30 Mar 2011 11:17:15 +1100 Subject: powerpc/qe_ic: Fix another breakage from the irq_data conversion Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/qe_ic.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/qe_ic.h b/arch/powerpc/include/asm/qe_ic.h index 9e2cb2019161..5f53dba81ea0 100644 --- a/arch/powerpc/include/asm/qe_ic.h +++ b/arch/powerpc/include/asm/qe_ic.h @@ -81,7 +81,7 @@ int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high); static inline void qe_ic_cascade_low_ipic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_chip_data(desc); unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); if (cascade_irq != NO_IRQ) @@ -91,7 +91,7 @@ static inline void qe_ic_cascade_low_ipic(unsigned int irq, static inline void qe_ic_cascade_high_ipic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_chip_data(desc); unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); if (cascade_irq != NO_IRQ) @@ -101,9 +101,9 @@ static inline void qe_ic_cascade_high_ipic(unsigned int irq, static inline void qe_ic_cascade_low_mpic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_chip_data(desc); unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); - struct irq_chip *chip = get_irq_desc_chip(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); @@ -114,9 +114,9 @@ static inline void qe_ic_cascade_low_mpic(unsigned int irq, static inline void qe_ic_cascade_high_mpic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_chip_data(desc); unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); - struct irq_chip *chip = get_irq_desc_chip(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); @@ -127,9 +127,9 @@ static inline void qe_ic_cascade_high_mpic(unsigned int irq, static inline void qe_ic_cascade_muxed_mpic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_chip_data(desc); unsigned int cascade_irq; - struct irq_chip *chip = get_irq_desc_chip(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); cascade_irq = qe_ic_get_high_irq(qe_ic); if (cascade_irq == NO_IRQ) -- cgit v1.2.3 From eead4d5c63ff9200a46d71345227f2b2f3eb86c0 Mon Sep 17 00:00:00 2001 From: Richard Cochran Date: Wed, 30 Mar 2011 15:25:04 +0200 Subject: powerpc: qe_ic: Rename get_irq_desc_data and get_irq_desc_chip These two functions disappeared in commit 0c6f8a8b917ad361319c8ace3e9f28e69bfdb4c1 "genirq: Remove compat code" but they still exist in qe_ic.h. This patch renames the function to their new names. Signed-off-by: Richard Cochran Cc: linuxppc-dev@lists.ozlabs.org Cc: Lennert Buytenhek Cc: Benjamin Herrenschmidt LKML-Reference: <20110330132504.GA31832@riccoc20.at.omicron.at> Signed-off-by: Thomas Gleixner --- arch/powerpc/include/asm/qe_ic.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/qe_ic.h b/arch/powerpc/include/asm/qe_ic.h index 9e2cb2019161..f706164b0bd0 100644 --- a/arch/powerpc/include/asm/qe_ic.h +++ b/arch/powerpc/include/asm/qe_ic.h @@ -81,7 +81,7 @@ int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high); static inline void qe_ic_cascade_low_ipic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_handler_data(desc); unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); if (cascade_irq != NO_IRQ) @@ -91,7 +91,7 @@ static inline void qe_ic_cascade_low_ipic(unsigned int irq, static inline void qe_ic_cascade_high_ipic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_handler_data(desc); unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); if (cascade_irq != NO_IRQ) @@ -101,9 +101,9 @@ static inline void qe_ic_cascade_high_ipic(unsigned int irq, static inline void qe_ic_cascade_low_mpic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_handler_data(desc); unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic); - struct irq_chip *chip = get_irq_desc_chip(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); @@ -114,9 +114,9 @@ static inline void qe_ic_cascade_low_mpic(unsigned int irq, static inline void qe_ic_cascade_high_mpic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_handler_data(desc); unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic); - struct irq_chip *chip = get_irq_desc_chip(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); if (cascade_irq != NO_IRQ) generic_handle_irq(cascade_irq); @@ -127,9 +127,9 @@ static inline void qe_ic_cascade_high_mpic(unsigned int irq, static inline void qe_ic_cascade_muxed_mpic(unsigned int irq, struct irq_desc *desc) { - struct qe_ic *qe_ic = get_irq_desc_data(desc); + struct qe_ic *qe_ic = irq_desc_get_handler_data(desc); unsigned int cascade_irq; - struct irq_chip *chip = get_irq_desc_chip(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); cascade_irq = qe_ic_get_high_irq(qe_ic); if (cascade_irq == NO_IRQ) -- cgit v1.2.3 From 25985edcedea6396277003854657b5f3cb31a628 Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Wed, 30 Mar 2011 22:57:33 -0300 Subject: Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi --- arch/powerpc/include/asm/bitops.h | 4 ++-- arch/powerpc/include/asm/compat.h | 2 +- arch/powerpc/include/asm/cpm.h | 2 +- arch/powerpc/include/asm/cpm1.h | 2 +- arch/powerpc/include/asm/hvcall.h | 2 +- arch/powerpc/include/asm/kprobes.h | 2 +- arch/powerpc/include/asm/lppaca.h | 2 +- arch/powerpc/include/asm/page_64.h | 2 +- arch/powerpc/include/asm/pasemi_dma.h | 2 +- arch/powerpc/include/asm/pci-bridge.h | 2 +- arch/powerpc/include/asm/pmac_feature.h | 4 ++-- arch/powerpc/include/asm/pte-common.h | 4 ++-- arch/powerpc/include/asm/reg_booke.h | 2 +- arch/powerpc/include/asm/spu_priv1.h | 2 +- arch/powerpc/include/asm/uninorth.h | 2 +- arch/powerpc/include/asm/vdso_datapage.h | 2 +- 16 files changed, 19 insertions(+), 19 deletions(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h index 2e561876fc89..f18c6d9b9510 100644 --- a/arch/powerpc/include/asm/bitops.h +++ b/arch/powerpc/include/asm/bitops.h @@ -209,8 +209,8 @@ static __inline__ unsigned long ffz(unsigned long x) return BITS_PER_LONG; /* - * Calculate the bit position of the least signficant '1' bit in x - * (since x has been changed this will actually be the least signficant + * Calculate the bit position of the least significant '1' bit in x + * (since x has been changed this will actually be the least significant * '0' bit in * the original x). Note: (x & -x) gives us a mask that * is the least significant * (RIGHT-most) 1-bit of the value in x. */ diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h index 2296112e247b..91010e8f8479 100644 --- a/arch/powerpc/include/asm/compat.h +++ b/arch/powerpc/include/asm/compat.h @@ -140,7 +140,7 @@ static inline void __user *arch_compat_alloc_user_space(long len) unsigned long usp = regs->gpr[1]; /* - * We cant access below the stack pointer in the 32bit ABI and + * We can't access below the stack pointer in the 32bit ABI and * can access 288 bytes in the 64bit ABI */ if (!is_32bit_task()) diff --git a/arch/powerpc/include/asm/cpm.h b/arch/powerpc/include/asm/cpm.h index e50323fe941f..4398a6cdcf53 100644 --- a/arch/powerpc/include/asm/cpm.h +++ b/arch/powerpc/include/asm/cpm.h @@ -98,7 +98,7 @@ typedef struct cpm_buf_desc { #define BD_SC_INTRPT (0x1000) /* Interrupt on change */ #define BD_SC_LAST (0x0800) /* Last buffer in frame */ #define BD_SC_TC (0x0400) /* Transmit CRC */ -#define BD_SC_CM (0x0200) /* Continous mode */ +#define BD_SC_CM (0x0200) /* Continuous mode */ #define BD_SC_ID (0x0100) /* Rec'd too many idles */ #define BD_SC_P (0x0100) /* xmt preamble */ #define BD_SC_BR (0x0020) /* Break received */ diff --git a/arch/powerpc/include/asm/cpm1.h b/arch/powerpc/include/asm/cpm1.h index bd07650dca56..8ee4211ca0c6 100644 --- a/arch/powerpc/include/asm/cpm1.h +++ b/arch/powerpc/include/asm/cpm1.h @@ -4,7 +4,7 @@ * * This file contains structures and information for the communication * processor channels. Some CPM control and status is available - * throught the MPC8xx internal memory map. See immap.h for details. + * through the MPC8xx internal memory map. See immap.h for details. * This file only contains what I need for the moment, not the total * CPM capabilities. I (or someone else) will add definitions as they * are needed. -- Dan diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index ec089acfa56b..8edec710cc6d 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -122,7 +122,7 @@ #define H_DABRX_KERNEL (1UL<<(63-62)) #define H_DABRX_USER (1UL<<(63-63)) -/* Each control block has to be on a 4K bondary */ +/* Each control block has to be on a 4K boundary */ #define H_CB_ALIGNMENT 4096 /* pSeries hypervisor opcodes */ diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h index d0e7701fa1f6..be0171afdc0f 100644 --- a/arch/powerpc/include/asm/kprobes.h +++ b/arch/powerpc/include/asm/kprobes.h @@ -50,7 +50,7 @@ typedef unsigned int kprobe_opcode_t; * Handle cases where: * - User passes a <.symbol> or * - User passes a or - * - User passes a non-existant symbol, kallsyms_lookup_name + * - User passes a non-existent symbol, kallsyms_lookup_name * returns 0. Don't deref the NULL pointer in that case */ #define kprobe_lookup_name(name, addr) \ diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h index 26b8c807f8f1..a077adc0b35e 100644 --- a/arch/powerpc/include/asm/lppaca.h +++ b/arch/powerpc/include/asm/lppaca.h @@ -105,7 +105,7 @@ struct lppaca { // processing of external interrupts. Note that PLIC will store the // XIRR directly into the xXirrValue field so that another XIRR will // not be presented until this one clears. The layout of the low - // 4-bytes of this Dword is upto SLIC - PLIC just checks whether the + // 4-bytes of this Dword is up to SLIC - PLIC just checks whether the // entire Dword is zero or not. A non-zero value in the low order // 2-bytes will result in SLIC being granted the highest thread // priority upon return. A 0 will return to SLIC as medium priority. diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h index 932f88dcf6fa..812b2cd80aed 100644 --- a/arch/powerpc/include/asm/page_64.h +++ b/arch/powerpc/include/asm/page_64.h @@ -169,7 +169,7 @@ do { \ /* * This is the default if a program doesn't have a PT_GNU_STACK * program header entry. The PPC64 ELF ABI has a non executable stack - * stack by default, so in the absense of a PT_GNU_STACK program header + * stack by default, so in the absence of a PT_GNU_STACK program header * we turn execute permission off. */ #define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ diff --git a/arch/powerpc/include/asm/pasemi_dma.h b/arch/powerpc/include/asm/pasemi_dma.h index 19fd7933e2d9..eafa5a5f56de 100644 --- a/arch/powerpc/include/asm/pasemi_dma.h +++ b/arch/powerpc/include/asm/pasemi_dma.h @@ -522,7 +522,7 @@ extern void *pasemi_dma_alloc_buf(struct pasemi_dmachan *chan, int size, extern void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size, dma_addr_t *handle); -/* Routines to allocate flags (events) for channel syncronization */ +/* Routines to allocate flags (events) for channel synchronization */ extern int pasemi_dma_alloc_flag(void); extern void pasemi_dma_free_flag(int flag); extern void pasemi_dma_set_flag(int flag); diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 5e156e034fe2..b90dbf8e5cd9 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -106,7 +106,7 @@ struct pci_controller { * Used for variants of PCI indirect handling and possible quirks: * SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1 * EXT_REG - provides access to PCI-e extended registers - * SURPRESS_PRIMARY_BUS - we surpress the setting of PCI_PRIMARY_BUS + * SURPRESS_PRIMARY_BUS - we suppress the setting of PCI_PRIMARY_BUS * on Freescale PCI-e controllers since they used the PCI_PRIMARY_BUS * to determine which bus number to match on when generating type0 * config cycles diff --git a/arch/powerpc/include/asm/pmac_feature.h b/arch/powerpc/include/asm/pmac_feature.h index 00eedc5a4e61..10902c9375d0 100644 --- a/arch/powerpc/include/asm/pmac_feature.h +++ b/arch/powerpc/include/asm/pmac_feature.h @@ -53,8 +53,8 @@ /* Here is the infamous serie of OHare based machines */ -#define PMAC_TYPE_COMET 0x20 /* Beleived to be PowerBook 2400 */ -#define PMAC_TYPE_HOOPER 0x21 /* Beleived to be PowerBook 3400 */ +#define PMAC_TYPE_COMET 0x20 /* Believed to be PowerBook 2400 */ +#define PMAC_TYPE_HOOPER 0x21 /* Believed to be PowerBook 3400 */ #define PMAC_TYPE_KANGA 0x22 /* PowerBook 3500 (first G3) */ #define PMAC_TYPE_ALCHEMY 0x23 /* Alchemy motherboard base */ #define PMAC_TYPE_GAZELLE 0x24 /* Spartacus, some 5xxx/6xxx */ diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h index 76bb195e4f24..811f04ac3660 100644 --- a/arch/powerpc/include/asm/pte-common.h +++ b/arch/powerpc/include/asm/pte-common.h @@ -86,7 +86,7 @@ extern unsigned long bad_call_to_PMD_PAGE_SIZE(void); #define PTE_RPN_MASK (~((1UL< Date: Thu, 10 Feb 2011 18:45:24 +1100 Subject: powerpc/smp: soft-replugged CPUs must go back to start_secondary Various thing are torn down when a CPU is hot-unplugged. That CPU is expected to go back to start_secondary when re-plugged to re initialize everything, such as clock sources, maps, ... Some implementations just return from cpu_die() callback in the idle loop when the CPU is "re-plugged". This is not enough. We fix it using a little asm trampoline which resets the stack and calls back into start_secondary as if we were all fresh from boot. The trampoline already existed on ppc64, but we add it for ppc32 Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/smp.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 66e237bbe15f..1de0e97a394f 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -36,6 +36,7 @@ extern void cpu_die(void); extern void smp_send_debugger_break(int cpu); extern void smp_message_recv(int); +extern void start_secondary_resume(void); DECLARE_PER_CPU(unsigned int, cpu_pvr); -- cgit v1.2.3 From b527d07114fdab83f39040c69b4b0a4b1b232c16 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 11 Feb 2011 12:46:41 +1100 Subject: powerpc/smp: Remove unused generic_cpu_enable() Nobody uses it, besides we should always use the normal __cpu_up path anyways Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/smp.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 1de0e97a394f..a629b6fef882 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -43,7 +43,6 @@ DECLARE_PER_CPU(unsigned int, cpu_pvr); #ifdef CONFIG_HOTPLUG_CPU extern void fixup_irqs(const struct cpumask *map); int generic_cpu_disable(void); -int generic_cpu_enable(unsigned int cpu); void generic_cpu_die(unsigned int cpu); void generic_mach_cpu_die(void); #endif -- cgit v1.2.3 From 7a53a4fe707a93a33f6c5d42173bf213cb6ff71d Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 11 Feb 2011 12:49:01 +1100 Subject: powerpc/smp: Remove unused smp_ops->cpu_enable() Remove the last remnants of cpu_enable(), everybody uses the normal __cpu_up() path now Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/machdep.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index fe56a23e1ff0..bcfc0da2cef1 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -37,7 +37,6 @@ struct smp_ops_t { void (*setup_cpu)(int nr); void (*take_timebase)(void); void (*give_timebase)(void); - int (*cpu_enable)(unsigned int nr); int (*cpu_disable)(void); void (*cpu_die)(unsigned int nr); int (*cpu_bootable)(unsigned int nr); -- cgit v1.2.3 From fb49f864c3c3f8ac5b68563774171fe43634ffeb Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 11 Feb 2011 14:09:32 +1100 Subject: powerpc/pmac/smp: Fix 32-bit PowerMac cpu_die Use generic cpu_state, call idle_task_exit() properly, and remove smp_core99_cpu_die() which isn't useful, the generic function does the job just fine. --- arch/powerpc/include/asm/smp.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index a629b6fef882..9fe559785b39 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -45,6 +45,7 @@ extern void fixup_irqs(const struct cpumask *map); int generic_cpu_disable(void); void generic_cpu_die(unsigned int cpu); void generic_mach_cpu_die(void); +DECLARE_PER_CPU(int, cpu_state); #endif #ifdef CONFIG_PPC64 -- cgit v1.2.3 From 1c91cc570576dfd0f288d664c095d64d11aaace4 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 11 Feb 2011 13:05:17 +1100 Subject: powerpc/pmac/smp: Rename fixup_irqs() to migrate_irqs() and use it on ppc32 Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/smp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 9fe559785b39..7e997715bf1e 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -41,7 +41,7 @@ extern void start_secondary_resume(void); DECLARE_PER_CPU(unsigned int, cpu_pvr); #ifdef CONFIG_HOTPLUG_CPU -extern void fixup_irqs(const struct cpumask *map); +extern void migrate_irqs(void); int generic_cpu_disable(void); void generic_cpu_die(unsigned int cpu); void generic_mach_cpu_die(void); -- cgit v1.2.3 From 62cc67b9df273be18fcb09a071592dedf751c90a Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 21 Feb 2011 16:49:58 +1100 Subject: powerpc/pmac/smp: Properly NAP offlined CPU on G5 The current code soft-disables, and then goes to NAP mode which turns interrupts on. That means that if an interrupt occurs, we will hit the masked interrupt code path which isn't what we want, as it will return with EE off, which will either get us out of NAP mode, or fail to enter it (according to spec). Instead, let's just rely on the fact that it is safe to take decrementer interrupts on an offline CPU and leave interrupts enabled. We can also get rid of the special case in asm for power4_cpu_offline_powersave() and just use power4_idle(). Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/machdep.h | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index bcfc0da2cef1..578d3309e109 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -266,7 +266,6 @@ struct machdep_calls { extern void e500_idle(void); extern void power4_idle(void); -extern void power4_cpu_offline_powersave(void); extern void ppc6xx_idle(void); extern void book3e_idle(void); -- cgit v1.2.3 From d72944457bb7d5c4be43aa1b741cb93c69484c20 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Tue, 8 Mar 2011 13:50:37 +1100 Subject: powerpc/smp: Add a smp_ops->bringup_up() done callback This allows us to stop abusing smp_ops->setup_cpu() for cleanup tasks that have to take place after the initial boot time CPU bringup. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/machdep.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index 578d3309e109..e4f01915fbb0 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -35,6 +35,7 @@ struct smp_ops_t { int (*probe)(void); void (*kick_cpu)(int nr); void (*setup_cpu)(int nr); + void (*bringup_done)(void); void (*take_timebase)(void); void (*give_timebase)(void); int (*cpu_disable)(void); -- cgit v1.2.3 From 105765f451d3ff007bb4ae3761e825686d9615db Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 1 Apr 2011 09:23:37 +1100 Subject: powerpc/smp: Don't expose per-cpu "cpu_state" array Instead, keep it static, expose an accessor and use that from the PowerMac code. Avoids easy namespace collisions and will make it easier to consolidate with other implementations. Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/smp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm') diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 7e997715bf1e..a902a0d3ae0d 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -45,7 +45,7 @@ extern void migrate_irqs(void); int generic_cpu_disable(void); void generic_cpu_die(unsigned int cpu); void generic_mach_cpu_die(void); -DECLARE_PER_CPU(int, cpu_state); +void generic_set_cpu_dead(unsigned int cpu); #endif #ifdef CONFIG_PPC64 -- cgit v1.2.3