Skip to content

Commit

Permalink
Merge tag 'mips_5.18_1' of git://git.kernel.org/pub/scm/linux/kernel/…
Browse files Browse the repository at this point in the history 
…git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - build fix for gpio

 - fix crc32 build problems

 - check for failed memory allocations

* tag 'mips_5.18_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: crypto: Fix CRC32 code
  MIPS: rb532: move GPIOD definition into C-files
  MIPS: lantiq: check the return value of kzalloc()
  mips: sgi-ip22: add a check for the return of kzalloc()
  • Loading branch information
@torvalds
torvalds committed Apr 2, 2022
2 parents 3890491 + 41022ef commit 0b0fa57
Show file tree
Hide file tree
Showing 7 changed files with 72 additions and 45 deletions.
46 changes: 26 additions & 20 deletions arch/mips/crypto/crc32-mips.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ enum crc_type {
};

#ifndef TOOLCHAIN_SUPPORTS_CRC
#define _ASM_MACRO_CRC32(OP, SZ, TYPE) \
#define _ASM_SET_CRC(OP, SZ, TYPE) \
_ASM_MACRO_3R(OP, rt, rs, rt2, \
".ifnc \\rt, \\rt2\n\t" \
".error \"invalid operands \\\"" #OP " \\rt,\\rs,\\rt2\\\"\"\n\t" \
Expand All @@ -37,30 +37,36 @@ _ASM_MACRO_3R(OP, rt, rs, rt2, \
((SZ) << 6) | ((TYPE) << 8)) \
_ASM_INSN32_IF_MM(0x00000030 | (__rs << 16) | (__rt << 21) | \
((SZ) << 14) | ((TYPE) << 3)))
_ASM_MACRO_CRC32(crc32b, 0, 0);
_ASM_MACRO_CRC32(crc32h, 1, 0);
_ASM_MACRO_CRC32(crc32w, 2, 0);
_ASM_MACRO_CRC32(crc32d, 3, 0);
_ASM_MACRO_CRC32(crc32cb, 0, 1);
_ASM_MACRO_CRC32(crc32ch, 1, 1);
_ASM_MACRO_CRC32(crc32cw, 2, 1);
_ASM_MACRO_CRC32(crc32cd, 3, 1);
#define _ASM_SET_CRC ""
#define _ASM_UNSET_CRC(op, SZ, TYPE) ".purgem " #op "\n\t"
#else /* !TOOLCHAIN_SUPPORTS_CRC */
#define _ASM_SET_CRC ".set\tcrc\n\t"
#define _ASM_SET_CRC(op, SZ, TYPE) ".set\tcrc\n\t"
#define _ASM_UNSET_CRC(op, SZ, TYPE)
#endif

#define _CRC32(crc, value, size, type) \
do { \
__asm__ __volatile__( \
".set push\n\t" \
_ASM_SET_CRC \
#type #size " %0, %1, %0\n\t" \
".set pop" \
: "+r" (crc) \
: "r" (value)); \
#define __CRC32(crc, value, op, SZ, TYPE) \
do { \
__asm__ __volatile__( \
".set push\n\t" \
_ASM_SET_CRC(op, SZ, TYPE) \
#op " %0, %1, %0\n\t" \
_ASM_UNSET_CRC(op, SZ, TYPE) \
".set pop" \
: "+r" (crc) \
: "r" (value)); \
} while (0)

#define _CRC32_crc32b(crc, value) __CRC32(crc, value, crc32b, 0, 0)
#define _CRC32_crc32h(crc, value) __CRC32(crc, value, crc32h, 1, 0)
#define _CRC32_crc32w(crc, value) __CRC32(crc, value, crc32w, 2, 0)
#define _CRC32_crc32d(crc, value) __CRC32(crc, value, crc32d, 3, 0)
#define _CRC32_crc32cb(crc, value) __CRC32(crc, value, crc32cb, 0, 1)
#define _CRC32_crc32ch(crc, value) __CRC32(crc, value, crc32ch, 1, 1)
#define _CRC32_crc32cw(crc, value) __CRC32(crc, value, crc32cw, 2, 1)
#define _CRC32_crc32cd(crc, value) __CRC32(crc, value, crc32cd, 3, 1)

#define _CRC32(crc, value, size, op) \
_CRC32_##op##size(crc, value)

#define CRC32(crc, value, size) \
_CRC32(crc, value, size, crc32)

Expand Down
9 changes: 0 additions & 9 deletions arch/mips/include/asm/mach-rc32434/rb.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -29,15 +29,6 @@
#define DEV3TC 0x01003C
#define BTCS 0x010040
#define BTCOMPARE 0x010044
#define GPIOBASE 0x050000
/* Offsets relative to GPIOBASE */
#define GPIOFUNC 0x00
#define GPIOCFG 0x04
#define GPIOD 0x08
#define GPIOILEVEL 0x0C
#define GPIOISTAT 0x10
#define GPIONMIEN 0x14
#define IMASK6 0x38
#define LO_WPX (1 << 0)
#define LO_ALE (1 << 1)
#define LO_CLE (1 << 2)
Expand Down
2 changes: 2 additions & 0 deletions arch/mips/lantiq/falcon/sysctrl.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -167,6 +167,8 @@ static inline void clkdev_add_sys(const char *dev, unsigned int module,
{
struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);

if (!clk)
return;
clk->cl.dev_id = dev;
clk->cl.con_id = NULL;
clk->cl.clk = clk;
Expand Down
2 changes: 2 additions & 0 deletions arch/mips/lantiq/xway/gptu.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -122,6 +122,8 @@ static inline void clkdev_add_gptu(struct device *dev, const char *con,
{
struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);

if (!clk)
return;
clk->cl.dev_id = dev_name(dev);
clk->cl.con_id = con;
clk->cl.clk = clk;
Expand Down
46 changes: 30 additions & 16 deletions arch/mips/lantiq/xway/sysctrl.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -315,6 +315,8 @@ static void clkdev_add_pmu(const char *dev, const char *con, bool deactivate,
{
struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);

if (!clk)
return;
clk->cl.dev_id = dev;
clk->cl.con_id = con;
clk->cl.clk = clk;
Expand All @@ -338,6 +340,8 @@ static void clkdev_add_cgu(const char *dev, const char *con,
{
struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);

if (!clk)
return;
clk->cl.dev_id = dev;
clk->cl.con_id = con;
clk->cl.clk = clk;
Expand All @@ -356,24 +360,28 @@ static void clkdev_add_pci(void)
struct clk *clk_ext = kzalloc(sizeof(struct clk), GFP_KERNEL);

/* main pci clock */
clk->cl.dev_id = "17000000.pci";
clk->cl.con_id = NULL;
clk->cl.clk = clk;
clk->rate = CLOCK_33M;
clk->rates = valid_pci_rates;
clk->enable = pci_enable;
clk->disable = pmu_disable;
clk->module = 0;
clk->bits = PMU_PCI;
clkdev_add(&clk->cl);
if (clk) {
clk->cl.dev_id = "17000000.pci";
clk->cl.con_id = NULL;
clk->cl.clk = clk;
clk->rate = CLOCK_33M;
clk->rates = valid_pci_rates;
clk->enable = pci_enable;
clk->disable = pmu_disable;
clk->module = 0;
clk->bits = PMU_PCI;
clkdev_add(&clk->cl);
}

/* use internal/external bus clock */
clk_ext->cl.dev_id = "17000000.pci";
clk_ext->cl.con_id = "external";
clk_ext->cl.clk = clk_ext;
clk_ext->enable = pci_ext_enable;
clk_ext->disable = pci_ext_disable;
clkdev_add(&clk_ext->cl);
if (clk_ext) {
clk_ext->cl.dev_id = "17000000.pci";
clk_ext->cl.con_id = "external";
clk_ext->cl.clk = clk_ext;
clk_ext->enable = pci_ext_enable;
clk_ext->disable = pci_ext_disable;
clkdev_add(&clk_ext->cl);
}
}

/* xway socs can generate clocks on gpio pins */
Expand All @@ -393,9 +401,15 @@ static void clkdev_add_clkout(void)
char *name;

name = kzalloc(sizeof("clkout0"), GFP_KERNEL);
if (!name)
continue;
sprintf(name, "clkout%d", i);

clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
if (!clk) {
kfree(name);
continue;
}
clk->cl.dev_id = "1f103000.cgu";
clk->cl.con_id = name;
clk->cl.clk = clk;
Expand Down
10 changes: 10 additions & 0 deletions arch/mips/rb532/gpio.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,16 @@
#include <asm/mach-rc32434/rb.h>
#include <asm/mach-rc32434/gpio.h>

#define GPIOBASE 0x050000
/* Offsets relative to GPIOBASE */
#define GPIOFUNC 0x00
#define GPIOCFG 0x04
#define GPIOD 0x08
#define GPIOILEVEL 0x0C
#define GPIOISTAT 0x10
#define GPIONMIEN 0x14
#define IMASK6 0x38

struct rb532_gpio_chip {
struct gpio_chip chip;
void __iomem *regbase;
Expand Down
2 changes: 2 additions & 0 deletions arch/mips/sgi-ip22/ip22-gio.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -363,6 +363,8 @@ static void ip22_check_gio(int slotno, unsigned long addr, int irq)
printk(KERN_INFO "GIO: slot %d : %s (id %x)\n",
slotno, name, id);
gio_dev = kzalloc(sizeof *gio_dev, GFP_KERNEL);
if (!gio_dev)
return;
gio_dev->name = name;
gio_dev->slotno = slotno;
gio_dev->id.id = id;
Expand Down

0 comments on commit 0b0fa57

Please sign in to comment.