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m68k updates for v5.10

Browse Source 
- Conversion of the Mac IDE driver to a platform driver,
   - Minor cleanups and fixes.
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Merge tag 'm68k-for-v5.10-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

  - Conversion of the Mac IDE driver to a platform driver

  - Minor cleanups and fixes

* tag 'm68k-for-v5.10-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  ide/macide: Convert Mac IDE driver to platform driver
  m68k: Replace HTTP links with HTTPS ones
  m68k: mm: Remove superfluous memblock_alloc*() casts
  m68k: mm: Use PAGE_ALIGNED() helper
  m68k: Sort selects in main Kconfig
  m68k: amiga: Clean up Amiga hardware configuration
  m68k: Revive _TIF_* masks
  m68k: Correct some typos in comments
  m68k: Use get_kernel_nofault() in show_registers()
  zorro: Fix address space collision message with RAM expansion boards
  m68k: amiga: Fix Denise detection on OCS
This commit is contained in:
Linus Torvalds 2020-10-12 10:10:56 -07:00
commit af9db1d663
14 changed files with 186 additions and 120 deletions
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28
arch/m68k/Kconfig
View File

@ -6,32 +6,32 @@ config M68K
select ARCH_HAS_BINFMT_FLAT
select ARCH_HAS_DMA_PREP_COHERENT if HAS_DMA && MMU && !COLDFIRE
select ARCH_HAS_SYNC_DMA_FOR_DEVICE if HAS_DMA
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
select ARCH_NO_PREEMPT if !COLDFIRE
select ARCH_WANT_IPC_PARSE_VERSION
select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
select DMA_DIRECT_REMAP if HAS_DMA && MMU && !COLDFIRE
select HAVE_IDE
select GENERIC_ATOMIC64
select GENERIC_CPU_DEVICES
select GENERIC_IOMAP
select GENERIC_IRQ_SHOW
select GENERIC_STRNCPY_FROM_USER if MMU
select GENERIC_STRNLEN_USER if MMU
select HAVE_AOUT if MMU
select HAVE_ASM_MODVERSIONS
select HAVE_DEBUG_BUGVERBOSE
select GENERIC_IRQ_SHOW
select GENERIC_ATOMIC64
select NO_DMA if !MMU && !COLDFIRE
select HAVE_UID16
select VIRT_TO_BUS
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
select GENERIC_CPU_DEVICES
select GENERIC_IOMAP
select GENERIC_STRNCPY_FROM_USER if MMU
select GENERIC_STRNLEN_USER if MMU
select ARCH_WANT_IPC_PARSE_VERSION
select HAVE_FUTEX_CMPXCHG if MMU && FUTEX
select HAVE_IDE
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_UID16
select MMU_GATHER_NO_RANGE if MMU
select MODULES_USE_ELF_REL
select MODULES_USE_ELF_RELA
select OLD_SIGSUSPEND3
select NO_DMA if !MMU && !COLDFIRE
select OLD_SIGACTION
select MMU_GATHER_NO_RANGE if MMU
select OLD_SIGSUSPEND3
select VIRT_TO_BUS
config CPU_BIG_ENDIAN
def_bool y

118
arch/m68k/amiga/config.c
View File

@ -214,7 +214,7 @@ static void __init amiga_identify(void)
switch (amiga_model) {
case AMI_UNKNOWN:
goto Generic;
break;
case AMI_600:
case AMI_1200:
@ -227,7 +227,7 @@ static void __init amiga_identify(void)
case AMI_2000:
case AMI_2500:
AMIGAHW_SET(A2000_CLK); /* Is this correct for all models? */
goto Generic;
break;
case AMI_3000:
case AMI_3000T:
@ -238,7 +238,7 @@ static void __init amiga_identify(void)
AMIGAHW_SET(A3000_SCSI);
AMIGAHW_SET(A3000_CLK);
AMIGAHW_SET(ZORRO3);
goto Generic;
break;
case AMI_4000T:
AMIGAHW_SET(A4000_SCSI);
@ -247,68 +247,12 @@ static void __init amiga_identify(void)
AMIGAHW_SET(A4000_IDE);
AMIGAHW_SET(A3000_CLK);
AMIGAHW_SET(ZORRO3);
goto Generic;
break;
case AMI_CDTV:
case AMI_CD32:
AMIGAHW_SET(CD_ROM);
AMIGAHW_SET(A2000_CLK); /* Is this correct? */
goto Generic;
Generic:
AMIGAHW_SET(AMI_VIDEO);
AMIGAHW_SET(AMI_BLITTER);
AMIGAHW_SET(AMI_AUDIO);
AMIGAHW_SET(AMI_FLOPPY);
AMIGAHW_SET(AMI_KEYBOARD);
AMIGAHW_SET(AMI_MOUSE);
AMIGAHW_SET(AMI_SERIAL);
AMIGAHW_SET(AMI_PARALLEL);
AMIGAHW_SET(CHIP_RAM);
AMIGAHW_SET(PAULA);
switch (amiga_chipset) {
case CS_OCS:
case CS_ECS:
case CS_AGA:
switch (amiga_custom.deniseid & 0xf) {
case 0x0c:
AMIGAHW_SET(DENISE_HR);
break;
case 0x08:
AMIGAHW_SET(LISA);
break;
}
break;
default:
AMIGAHW_SET(DENISE);
break;
}
switch ((amiga_custom.vposr>>8) & 0x7f) {
case 0x00:
AMIGAHW_SET(AGNUS_PAL);
break;
case 0x10:
AMIGAHW_SET(AGNUS_NTSC);
break;
case 0x20:
case 0x21:
AMIGAHW_SET(AGNUS_HR_PAL);
break;
case 0x30:
case 0x31:
AMIGAHW_SET(AGNUS_HR_NTSC);
break;
case 0x22:
case 0x23:
AMIGAHW_SET(ALICE_PAL);
break;
case 0x32:
case 0x33:
AMIGAHW_SET(ALICE_NTSC);
break;
}
AMIGAHW_SET(ZORRO);
break;
case AMI_DRACO:
@ -318,6 +262,60 @@ static void __init amiga_identify(void)
panic("Unknown Amiga Model");
}
AMIGAHW_SET(AMI_VIDEO);
AMIGAHW_SET(AMI_BLITTER);
AMIGAHW_SET(AMI_AUDIO);
AMIGAHW_SET(AMI_FLOPPY);
AMIGAHW_SET(AMI_KEYBOARD);
AMIGAHW_SET(AMI_MOUSE);
AMIGAHW_SET(AMI_SERIAL);
AMIGAHW_SET(AMI_PARALLEL);
AMIGAHW_SET(CHIP_RAM);
AMIGAHW_SET(PAULA);
switch (amiga_chipset) {
case CS_OCS:
case CS_ECS:
case CS_AGA:
switch (amiga_custom.deniseid & 0xf) {
case 0x0c:
AMIGAHW_SET(DENISE_HR);
break;
case 0x08:
AMIGAHW_SET(LISA);
break;
default:
AMIGAHW_SET(DENISE);
break;
}
break;
}
switch ((amiga_custom.vposr>>8) & 0x7f) {
case 0x00:
AMIGAHW_SET(AGNUS_PAL);
break;
case 0x10:
AMIGAHW_SET(AGNUS_NTSC);
break;
case 0x20:
case 0x21:
AMIGAHW_SET(AGNUS_HR_PAL);
break;
case 0x30:
case 0x31:
AMIGAHW_SET(AGNUS_HR_NTSC);
break;
case 0x22:
case 0x23:
AMIGAHW_SET(ALICE_PAL);
break;
case 0x32:
case 0x33:
AMIGAHW_SET(ALICE_NTSC);
break;
}
AMIGAHW_SET(ZORRO);
#define AMIGAHW_ANNOUNCE(name, str) \
if (AMIGAHW_PRESENT(name)) \
pr_cont(str)

1
arch/m68k/configs/mac_defconfig
View File

@ -317,6 +317,7 @@ CONFIG_DUMMY_IRQ=m
CONFIG_IDE=y
CONFIG_IDE_GD_ATAPI=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_PLATFORM=y
CONFIG_BLK_DEV_MAC_IDE=y
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=y

1
arch/m68k/configs/multi_defconfig
View File

@ -346,6 +346,7 @@ CONFIG_DUMMY_IRQ=m
CONFIG_IDE=y
CONFIG_IDE_GD_ATAPI=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_PLATFORM=y
CONFIG_BLK_DEV_GAYLE=y
CONFIG_BLK_DEV_BUDDHA=y
CONFIG_BLK_DEV_FALCON_IDE=y

8
arch/m68k/include/asm/thread_info.h
View File

@ -68,4 +68,12 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_MEMDIE 16 /* is terminating due to OOM killer */
#define TIF_RESTORE_SIGMASK 18 /* restore signal mask in do_signal */
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_DELAYED_TRACE (1 << TIF_DELAYED_TRACE)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#endif /* _ASM_M68K_THREAD_INFO_H */

16
arch/m68k/kernel/head.S
View File

@ -57,7 +57,7 @@
* Of course, readability is a subjective issue, so it will never be
* argued that that goal was accomplished. It was merely a goal.
* A key way to help make code more readable is to give good
* documentation. So, the first thing you will find is exaustive
* documentation. So, the first thing you will find is exhaustive
* write-ups on the structure of the file, and the features of the
* functional subroutines.
*
@ -1304,7 +1304,7 @@ L(mmu_fixup_done):
* mmu_engage
*
* This chunk of code performs the gruesome task of engaging the MMU.
* The reason its gruesome is because when the MMU becomes engaged it
* The reason it's gruesome is because when the MMU becomes engaged it
* maps logical addresses to physical addresses. The Program Counter
* register is then passed through the MMU before the next instruction
* is fetched (the instruction following the engage MMU instruction).
@ -1369,7 +1369,7 @@ L(mmu_fixup_done):
/*
* After this point no new memory is allocated and
* the start of available memory is stored in availmem.
* (The bootmem allocator requires now the physicall address.)
* (The bootmem allocator requires now the physical address.)
*/
movel L(memory_start),availmem
@ -1547,7 +1547,7 @@ func_return get_bi_record
* seven bits of the logical address (LA) are used as an
* index into the "root table." Each entry in the root
* table has a bit which specifies if it's a valid pointer to a
* pointer table. Each entry defines a 32KMeg range of memory.
* pointer table. Each entry defines a 32Meg range of memory.
* If an entry is invalid then that logical range of 32M is
* invalid and references to that range of memory (when the MMU
* is enabled) will fault. If the entry is valid, then it does
@ -1584,7 +1584,7 @@ func_return get_bi_record
* bits 17..12 - index into the Page Table
* bits 11..0 - offset into a particular 4K page
*
* The algorithms which follows do one thing: they abstract
* The algorithms which follow do one thing: they abstract
* the MMU hardware. For example, there are three kinds of
* cache settings that are relevant. Either, memory is
* being mapped in which case it is either Kernel Code (or
@ -2082,7 +2082,7 @@ func_return mmu_map_tt
* mmu_map
*
* This routine will map a range of memory using a pointer
* table and allocating the pages on the fly from the kernel.
* table and allocate the pages on the fly from the kernel.
* The pointer table does not have to be already linked into
* the root table, this routine will do that if necessary.
*
@ -2528,7 +2528,7 @@ func_start mmu_get_root_table_entry,%d0/%a1
/* Find the start of free memory, get_bi_record does this for us,
* as the bootinfo structure is located directly behind the kernel
* and and we simply search for the last entry.
* we simply search for the last entry.
*/
get_bi_record BI_LAST
addw #PAGESIZE-1,%a0
@ -2654,7 +2654,7 @@ func_start mmu_get_page_table_entry,%d0/%a1
jne 2f
/* If the page table entry doesn't exist, we allocate a complete new
* page and use it as one continues big page table which can cover
* page and use it as one continuous big page table which can cover
* 4MB of memory, nearly almost all mappings have that alignment.
*/
get_new_page

5
arch/m68k/kernel/traps.c
View File

@ -845,7 +845,6 @@ static void show_trace(unsigned long *stack, const char *loglvl)
void show_registers(struct pt_regs *regs)
{
struct frame *fp = (struct frame *)regs;
mm_segment_t old_fs = get_fs();
u16 c, *cp;
unsigned long addr;
int i;
@ -918,10 +917,9 @@ void show_registers(struct pt_regs *regs)
show_stack(NULL, (unsigned long *)addr, KERN_INFO);
pr_info("Code:");
set_fs(KERNEL_DS);
cp = (u16 *)regs->pc;
for (i = -8; i < 16; i++) {
if (get_user(c, cp + i) && i >= 0) {
if (get_kernel_nofault(c, cp + i) && i >= 0) {
pr_cont(" Bad PC value.");
break;
}
@ -930,7 +928,6 @@ void show_registers(struct pt_regs *regs)
else
pr_cont(" <%04x>", c);
}
set_fs(old_fs);
pr_cont("\n");
}

41
arch/m68k/mac/config.c
View File

@ -24,6 +24,7 @@
#include <linux/init.h>
#include <linux/vt_kern.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <linux/adb.h>
#include <linux/cuda.h>
#include <linux/pmu.h>
@ -940,6 +941,26 @@ static const struct resource mac_scsi_ccl_rsrc[] __initconst = {
},
};
static const struct resource mac_ide_quadra_rsrc[] __initconst = {
DEFINE_RES_MEM(0x50F1A000, 0x104),
DEFINE_RES_IRQ(IRQ_NUBUS_F),
};
static const struct resource mac_ide_pb_rsrc[] __initconst = {
DEFINE_RES_MEM(0x50F1A000, 0x104),
DEFINE_RES_IRQ(IRQ_NUBUS_C),
};
static const struct resource mac_pata_baboon_rsrc[] __initconst = {
DEFINE_RES_MEM(0x50F1A000, 0x38),
DEFINE_RES_MEM(0x50F1A038, 0x04),
DEFINE_RES_IRQ(IRQ_BABOON_1),
};
static const struct pata_platform_info mac_pata_baboon_data __initconst = {
.ioport_shift = 2,
};
int __init mac_platform_init(void)
{
phys_addr_t swim_base = 0;
@ -1048,6 +1069,26 @@ int __init mac_platform_init(void)
break;
}
/*
* IDE device
*/
switch (macintosh_config->ide_type) {
case MAC_IDE_QUADRA:
platform_device_register_simple("mac_ide", -1,
mac_ide_quadra_rsrc, ARRAY_SIZE(mac_ide_quadra_rsrc));
break;
case MAC_IDE_PB:
platform_device_register_simple("mac_ide", -1,
mac_ide_pb_rsrc, ARRAY_SIZE(mac_ide_pb_rsrc));
break;
case MAC_IDE_BABOON:
platform_device_register_resndata(NULL, "pata_platform", -1,
mac_pata_baboon_rsrc, ARRAY_SIZE(mac_pata_baboon_rsrc),
&mac_pata_baboon_data, sizeof(mac_pata_baboon_data));
break;
}
/*
* Ethernet device
*/

2
arch/m68k/mac/macboing.c
View File

@ -116,7 +116,7 @@ static void mac_init_asc( void )
* support 16-bit stereo output, but only mono input."
*
* Technical Information Library (TIL) article number 16405.
* http://support.apple.com/kb/TA32601
* https://support.apple.com/kb/TA32601
*
* --David Kilzer
*/

2
arch/m68k/mm/mcfmmu.c
View File

@ -42,7 +42,7 @@ void __init paging_init(void)
unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 };
int i;
empty_zero_page = (void *) memblock_alloc(PAGE_SIZE, PAGE_SIZE);
empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
if (!empty_zero_page)
panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
__func__, PAGE_SIZE, PAGE_SIZE);

9
arch/m68k/mm/motorola.c
View File

@ -226,8 +226,8 @@ static pte_t * __init kernel_page_table(void)
{
pte_t *pte_table = last_pte_table;
if (((unsigned long)last_pte_table & ~PAGE_MASK) == 0) {
pte_table = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
if (PAGE_ALIGNED(last_pte_table)) {
pte_table = memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
if (!pte_table) {
panic("%s: Failed to allocate %lu bytes align=%lx\n",
__func__, PAGE_SIZE, PAGE_SIZE);
@ -274,9 +274,8 @@ static pmd_t * __init kernel_ptr_table(void)
}
last_pmd_table += PTRS_PER_PMD;
if (((unsigned long)last_pmd_table & ~PAGE_MASK) == 0) {
last_pmd_table = (pmd_t *)memblock_alloc_low(PAGE_SIZE,
PAGE_SIZE);
if (PAGE_ALIGNED(last_pmd_table)) {
last_pmd_table = memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
if (!last_pmd_table)
panic("%s: Failed to allocate %lu bytes align=%lx\n",
__func__, PAGE_SIZE, PAGE_SIZE);

7
drivers/ide/Kconfig
View File

@ -744,9 +744,10 @@ config BLK_DEV_MAC_IDE
depends on MAC
help
This is the IDE driver for the on-board IDE interface on some m68k
Macintosh models. It supports both the `Quadra style' (used in
Quadra/ Centris 630 and Performa 588 models) and `Powerbook style'
(used in the Powerbook 150 and 190 models) IDE interface.
Macintosh models, namely Quadra/Centris 630, Performa 588 and
Powerbook 150. The IDE interface on the Powerbook 190 is not
supported by this driver and requires BLK_DEV_PLATFORM or
PATA_PLATFORM.
Say Y if you have such an Macintosh model and want to use IDE
devices (hard disks, CD-ROM drives, etc.) that are connected to the

66
drivers/ide/macide.c
View File

@ -18,10 +18,11 @@
#include <linux/delay.h>
#include <linux/ide.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <asm/macintosh.h>
#include <asm/macints.h>
#include <asm/mac_baboon.h>
#define DRV_NAME "mac_ide"
#define IDE_BASE 0x50F1A000 /* Base address of IDE controller */
@ -100,42 +101,61 @@ static const char *mac_ide_name[] =
* Probe for a Macintosh IDE interface
*/
static int __init macide_init(void)
static int mac_ide_probe(struct platform_device *pdev)
{
unsigned long base;
int irq;
struct resource *mem, *irq;
struct ide_hw hw, *hws[] = { &hw };
struct ide_port_info d = macide_port_info;
struct ide_host *host;
int rc;
if (!MACH_IS_MAC)
return -ENODEV;
switch (macintosh_config->ide_type) {
case MAC_IDE_QUADRA:
base = IDE_BASE;
irq = IRQ_NUBUS_F;
break;
case MAC_IDE_PB:
base = IDE_BASE;
irq = IRQ_NUBUS_C;
break;
case MAC_IDE_BABOON:
base = BABOON_BASE;
d.port_ops = NULL;
irq = IRQ_BABOON_1;
break;
default:
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem)
return -ENODEV;
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!irq)
return -ENODEV;
if (!devm_request_mem_region(&pdev->dev, mem->start,
resource_size(mem), DRV_NAME)) {
dev_err(&pdev->dev, "resources busy\n");
return -EBUSY;
}
printk(KERN_INFO "ide: Macintosh %s IDE controller\n",
mac_ide_name[macintosh_config->ide_type - 1]);
macide_setup_ports(&hw, base, irq);
macide_setup_ports(&hw, mem->start, irq->start);
return ide_host_add(&d, hws, 1, NULL);
rc = ide_host_add(&d, hws, 1, &host);
if (rc)
return rc;
platform_set_drvdata(pdev, host);
return 0;
}
module_init(macide_init);
static int mac_ide_remove(struct platform_device *pdev)
{
struct ide_host *host = platform_get_drvdata(pdev);
ide_host_remove(host);
return 0;
}
static struct platform_driver mac_ide_driver = {
.driver = {
.name = DRV_NAME,
},
.probe = mac_ide_probe,
.remove = mac_ide_remove,
};
module_platform_driver(mac_ide_driver);
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_LICENSE("GPL");

2
drivers/zorro/zorro.c
View File

@ -181,7 +181,7 @@ static int __init amiga_zorro_probe(struct platform_device *pdev)
z->resource.name = z->name;
r = zorro_find_parent_resource(pdev, z);
error = request_resource(r, &z->resource);
if (error)
if (error && !(z->rom.er_Type & ERTF_MEMLIST))
dev_err(&bus->dev,
"Address space collision on device %s %pR\n",
z->name, &z->resource);