Linux 4.16-rc6

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Merge tag 'v4.16-rc6' into perf/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2018-03-19 20:37:35 +01:00
commit 134933e557
419 changed files with 4150 additions and 3220 deletions

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@ -152,6 +152,11 @@ OCXL_IOCTL_IRQ_SET_FD:
Associate an event fd to an AFU interrupt so that the user process
can be notified when the AFU sends an interrupt.
OCXL_IOCTL_GET_METADATA:
Obtains configuration information from the card, such at the size of
MMIO areas, the AFU version, and the PASID for the current context.
mmap
----

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@ -11,7 +11,11 @@ Required properties:
interrupts.
Optional properties:
- clocks: Optional reference to the clock used by the XOR engine.
- clocks: Optional reference to the clocks used by the XOR engine.
- clock-names: mandatory if there is a second clock, in this case the
name must be "core" for the first clock and "reg" for the second
one
Example:

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@ -18,6 +18,7 @@ Required properties:
- "renesas,etheravb-r8a7795" for the R8A7795 SoC.
- "renesas,etheravb-r8a7796" for the R8A7796 SoC.
- "renesas,etheravb-r8a77970" for the R8A77970 SoC.
- "renesas,etheravb-r8a77980" for the R8A77980 SoC.
- "renesas,etheravb-r8a77995" for the R8A77995 SoC.
- "renesas,etheravb-rcar-gen3" as a fallback for the above
R-Car Gen3 devices.

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@ -19,7 +19,7 @@ Required properties:
configured in FS mode;
- "st,stm32f4x9-hsotg": The DWC2 USB HS controller instance in STM32F4x9 SoCs
configured in HS mode;
- "st,stm32f7xx-hsotg": The DWC2 USB HS controller instance in STM32F7xx SoCs
- "st,stm32f7-hsotg": The DWC2 USB HS controller instance in STM32F7 SoCs
configured in HS mode;
- reg : Should contain 1 register range (address and length)
- interrupts : Should contain 1 interrupt

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@ -4,6 +4,7 @@ Required properties:
- compatible: Must contain one of the following:
- "renesas,r8a7795-usb3-peri"
- "renesas,r8a7796-usb3-peri"
- "renesas,r8a77965-usb3-peri"
- "renesas,rcar-gen3-usb3-peri" for a generic R-Car Gen3 compatible
device

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@ -12,6 +12,7 @@ Required properties:
- "renesas,usbhs-r8a7794" for r8a7794 (R-Car E2) compatible device
- "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device
- "renesas,usbhs-r8a7796" for r8a7796 (R-Car M3-W) compatible device
- "renesas,usbhs-r8a77965" for r8a77965 (R-Car M3-N) compatible device
- "renesas,usbhs-r8a77995" for r8a77995 (R-Car D3) compatible device
- "renesas,usbhs-r7s72100" for r7s72100 (RZ/A1) compatible device
- "renesas,rcar-gen2-usbhs" for R-Car Gen2 or RZ/G1 compatible devices

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@ -13,6 +13,7 @@ Required properties:
- "renesas,xhci-r8a7793" for r8a7793 SoC
- "renesas,xhci-r8a7795" for r8a7795 SoC
- "renesas,xhci-r8a7796" for r8a7796 SoC
- "renesas,xhci-r8a77965" for r8a77965 SoC
- "renesas,rcar-gen2-xhci" for a generic R-Car Gen2 or RZ/G1 compatible
device
- "renesas,rcar-gen3-xhci" for a generic R-Car Gen3 compatible device

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@ -111,7 +111,7 @@ TROUBLESHOOTING SERIAL CONSOLE PROBLEMS
- If you don't have an HCDP, the kernel doesn't know where
your console lives until the driver discovers serial
devices. Use "console=uart, io,0x3f8" (or appropriate
devices. Use "console=uart,io,0x3f8" (or appropriate
address for your machine).
Kernel and init script output works fine, but no "login:" prompt:

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@ -36,8 +36,7 @@ import glob
from docutils import nodes, statemachine
from docutils.statemachine import ViewList
from docutils.parsers.rst import directives
from sphinx.util.compat import Directive
from docutils.parsers.rst import directives, Directive
from sphinx.ext.autodoc import AutodocReporter
__version__ = '1.0'

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@ -9925,6 +9925,13 @@ F: Documentation/ABI/stable/sysfs-bus-nvmem
F: include/linux/nvmem-consumer.h
F: include/linux/nvmem-provider.h
NXP SGTL5000 DRIVER
M: Fabio Estevam <fabio.estevam@nxp.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Maintained
F: Documentation/devicetree/bindings/sound/sgtl5000.txt
F: sound/soc/codecs/sgtl5000*
NXP TDA998X DRM DRIVER
M: Russell King <linux@armlinux.org.uk>
S: Supported
@ -12107,6 +12114,7 @@ M: Sylwester Nawrocki <s.nawrocki@samsung.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Supported
F: sound/soc/samsung/
F: Documentation/devicetree/bindings/sound/samsung*
SAMSUNG EXYNOS PSEUDO RANDOM NUMBER GENERATOR (RNG) DRIVER
M: Krzysztof Kozlowski <krzk@kernel.org>

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@ -2,7 +2,7 @@
VERSION = 4
PATCHLEVEL = 16
SUBLEVEL = 0
EXTRAVERSION = -rc4
EXTRAVERSION = -rc6
NAME = Fearless Coyote
# *DOCUMENTATION*

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@ -58,7 +58,6 @@ config MACH_KUROBOX_PRO
config MACH_DNS323
bool "D-Link DNS-323"
select GENERIC_NET_UTILS
select I2C_BOARDINFO if I2C
help
Say 'Y' here if you want your kernel to support the
@ -66,7 +65,6 @@ config MACH_DNS323
config MACH_TS209
bool "QNAP TS-109/TS-209"
select GENERIC_NET_UTILS
help
Say 'Y' here if you want your kernel to support the
QNAP TS-109/TS-209 platform.
@ -101,7 +99,6 @@ config MACH_LINKSTATION_LS_HGL
config MACH_TS409
bool "QNAP TS-409"
select GENERIC_NET_UTILS
help
Say 'Y' here if you want your kernel to support the
QNAP TS-409 platform.

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@ -173,10 +173,42 @@ static struct mv643xx_eth_platform_data dns323_eth_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
* functions be kept somewhere?
*/
static int __init dns323_parse_hex_nibble(char n)
{
if (n >= '0' && n <= '9')
return n - '0';
if (n >= 'A' && n <= 'F')
return n - 'A' + 10;
if (n >= 'a' && n <= 'f')
return n - 'a' + 10;
return -1;
}
static int __init dns323_parse_hex_byte(const char *b)
{
int hi;
int lo;
hi = dns323_parse_hex_nibble(b[0]);
lo = dns323_parse_hex_nibble(b[1]);
if (hi < 0 || lo < 0)
return -1;
return (hi << 4) | lo;
}
static int __init dns323_read_mac_addr(void)
{
u_int8_t addr[6];
void __iomem *mac_page;
int i;
char *mac_page;
/* MAC address is stored as a regular ol' string in /dev/mtdblock4
* (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
@ -185,8 +217,23 @@ static int __init dns323_read_mac_addr(void)
if (!mac_page)
return -ENOMEM;
if (!mac_pton((__force const char *) mac_page, addr))
goto error_fail;
/* Sanity check the string we're looking at */
for (i = 0; i < 5; i++) {
if (*(mac_page + (i * 3) + 2) != ':') {
goto error_fail;
}
}
for (i = 0; i < 6; i++) {
int byte;
byte = dns323_parse_hex_byte(mac_page + (i * 3));
if (byte < 0) {
goto error_fail;
}
addr[i] = byte;
}
iounmap(mac_page);
printk("DNS-323: Found ethernet MAC address: %pM\n", addr);

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@ -53,12 +53,53 @@ struct mv643xx_eth_platform_data qnap_tsx09_eth_data = {
.phy_addr = MV643XX_ETH_PHY_ADDR(8),
};
static int __init qnap_tsx09_parse_hex_nibble(char n)
{
if (n >= '0' && n <= '9')
return n - '0';
if (n >= 'A' && n <= 'F')
return n - 'A' + 10;
if (n >= 'a' && n <= 'f')
return n - 'a' + 10;
return -1;
}
static int __init qnap_tsx09_parse_hex_byte(const char *b)
{
int hi;
int lo;
hi = qnap_tsx09_parse_hex_nibble(b[0]);
lo = qnap_tsx09_parse_hex_nibble(b[1]);
if (hi < 0 || lo < 0)
return -1;
return (hi << 4) | lo;
}
static int __init qnap_tsx09_check_mac_addr(const char *addr_str)
{
u_int8_t addr[6];
int i;
if (!mac_pton(addr_str, addr))
return -1;
for (i = 0; i < 6; i++) {
int byte;
/*
* Enforce "xx:xx:xx:xx:xx:xx\n" format.
*/
if (addr_str[(i * 3) + 2] != ((i < 5) ? ':' : '\n'))
return -1;
byte = qnap_tsx09_parse_hex_byte(addr_str + (i * 3));
if (byte < 0)
return -1;
addr[i] = byte;
}
printk(KERN_INFO "tsx09: found ethernet mac address %pM\n", addr);
@ -77,12 +118,12 @@ void __init qnap_tsx09_find_mac_addr(u32 mem_base, u32 size)
unsigned long addr;
for (addr = mem_base; addr < (mem_base + size); addr += 1024) {
void __iomem *nor_page;
char *nor_page;
int ret = 0;
nor_page = ioremap(addr, 1024);
if (nor_page != NULL) {
ret = qnap_tsx09_check_mac_addr((__force const char *)nor_page);
ret = qnap_tsx09_check_mac_addr(nor_page);
iounmap(nor_page);
}

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@ -178,7 +178,7 @@ static int enable_smccc_arch_workaround_1(void *data)
case PSCI_CONDUIT_HVC:
arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if (res.a0)
if ((int)res.a0 < 0)
return 0;
cb = call_hvc_arch_workaround_1;
smccc_start = __smccc_workaround_1_hvc_start;
@ -188,7 +188,7 @@ static int enable_smccc_arch_workaround_1(void *data)
case PSCI_CONDUIT_SMC:
arm_smccc_1_1_smc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if (res.a0)
if ((int)res.a0 < 0)
return 0;
cb = call_smc_arch_workaround_1;
smccc_start = __smccc_workaround_1_smc_start;

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@ -363,8 +363,6 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
{
int ret = 0;
vcpu_load(vcpu);
trace_kvm_set_guest_debug(vcpu, dbg->control);
if (dbg->control & ~KVM_GUESTDBG_VALID_MASK) {
@ -386,7 +384,6 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
}
out:
vcpu_put(vcpu);
return ret;
}

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@ -108,7 +108,7 @@ static bool pgattr_change_is_safe(u64 old, u64 new)
* The following mapping attributes may be updated in live
* kernel mappings without the need for break-before-make.
*/
static const pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE;
static const pteval_t mask = PTE_PXN | PTE_RDONLY | PTE_WRITE | PTE_NG;
/* creating or taking down mappings is always safe */
if (old == 0 || new == 0)
@ -118,9 +118,9 @@ static bool pgattr_change_is_safe(u64 old, u64 new)
if ((old | new) & PTE_CONT)
return false;
/* Transitioning from Global to Non-Global is safe */
if (((old ^ new) == PTE_NG) && (new & PTE_NG))
return true;
/* Transitioning from Non-Global to Global is unsafe */
if (old & ~new & PTE_NG)
return false;
return ((old ^ new) & ~mask) == 0;
}

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@ -66,38 +66,35 @@ ATOMIC_OPS(add, +)
ATOMIC_OPS(sub, -)
#ifdef __OPTIMIZE__
#define __ia64_atomic_const(i) __builtin_constant_p(i) ? \
#define __ia64_atomic_const(i) \
static const int __ia64_atomic_p = __builtin_constant_p(i) ? \
((i) == 1 || (i) == 4 || (i) == 8 || (i) == 16 || \
(i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0
#define atomic_add_return(i, v) \
({ \
int __i = (i); \
static const int __ia64_atomic_p = __ia64_atomic_const(i); \
__ia64_atomic_p ? ia64_fetch_and_add(__i, &(v)->counter) : \
ia64_atomic_add(__i, v); \
})
#define atomic_sub_return(i, v) \
({ \
int __i = (i); \
static const int __ia64_atomic_p = __ia64_atomic_const(i); \
__ia64_atomic_p ? ia64_fetch_and_add(-__i, &(v)->counter) : \
ia64_atomic_sub(__i, v); \
})
(i) == -1 || (i) == -4 || (i) == -8 || (i) == -16) : 0;\
__ia64_atomic_p
#else
#define atomic_add_return(i, v) ia64_atomic_add(i, v)
#define atomic_sub_return(i, v) ia64_atomic_sub(i, v)
#define __ia64_atomic_const(i) 0
#endif
#define atomic_add_return(i,v) \
({ \
int __ia64_aar_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \
: ia64_atomic_add(__ia64_aar_i, v); \
})
#define atomic_sub_return(i,v) \
({ \
int __ia64_asr_i = (i); \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \
: ia64_atomic_sub(__ia64_asr_i, v); \
})
#define atomic_fetch_add(i,v) \
({ \
int __ia64_aar_i = (i); \
(__builtin_constant_p(i) \
&& ( (__ia64_aar_i == 1) || (__ia64_aar_i == 4) \
|| (__ia64_aar_i == 8) || (__ia64_aar_i == 16) \
|| (__ia64_aar_i == -1) || (__ia64_aar_i == -4) \
|| (__ia64_aar_i == -8) || (__ia64_aar_i == -16))) \
__ia64_atomic_const(i) \
? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \
: ia64_atomic_fetch_add(__ia64_aar_i, v); \
})
@ -105,11 +102,7 @@ ATOMIC_OPS(sub, -)
#define atomic_fetch_sub(i,v) \
({ \
int __ia64_asr_i = (i); \
(__builtin_constant_p(i) \
&& ( (__ia64_asr_i == 1) || (__ia64_asr_i == 4) \
|| (__ia64_asr_i == 8) || (__ia64_asr_i == 16) \
|| (__ia64_asr_i == -1) || (__ia64_asr_i == -4) \
|| (__ia64_asr_i == -8) || (__ia64_asr_i == -16))) \
__ia64_atomic_const(i) \
? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq) \
: ia64_atomic_fetch_sub(__ia64_asr_i, v); \
})
@ -170,11 +163,7 @@ ATOMIC64_OPS(sub, -)
#define atomic64_add_return(i,v) \
({ \
long __ia64_aar_i = (i); \
(__builtin_constant_p(i) \
&& ( (__ia64_aar_i == 1) || (__ia64_aar_i == 4) \
|| (__ia64_aar_i == 8) || (__ia64_aar_i == 16) \
|| (__ia64_aar_i == -1) || (__ia64_aar_i == -4) \
|| (__ia64_aar_i == -8) || (__ia64_aar_i == -16))) \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(__ia64_aar_i, &(v)->counter) \
: ia64_atomic64_add(__ia64_aar_i, v); \
})
@ -182,11 +171,7 @@ ATOMIC64_OPS(sub, -)
#define atomic64_sub_return(i,v) \
({ \
long __ia64_asr_i = (i); \
(__builtin_constant_p(i) \
&& ( (__ia64_asr_i == 1) || (__ia64_asr_i == 4) \
|| (__ia64_asr_i == 8) || (__ia64_asr_i == 16) \
|| (__ia64_asr_i == -1) || (__ia64_asr_i == -4) \
|| (__ia64_asr_i == -8) || (__ia64_asr_i == -16))) \
__ia64_atomic_const(i) \
? ia64_fetch_and_add(-__ia64_asr_i, &(v)->counter) \
: ia64_atomic64_sub(__ia64_asr_i, v); \
})
@ -194,11 +179,7 @@ ATOMIC64_OPS(sub, -)
#define atomic64_fetch_add(i,v) \
({ \
long __ia64_aar_i = (i); \
(__builtin_constant_p(i) \
&& ( (__ia64_aar_i == 1) || (__ia64_aar_i == 4) \
|| (__ia64_aar_i == 8) || (__ia64_aar_i == 16) \
|| (__ia64_aar_i == -1) || (__ia64_aar_i == -4) \
|| (__ia64_aar_i == -8) || (__ia64_aar_i == -16))) \
__ia64_atomic_const(i) \
? ia64_fetchadd(__ia64_aar_i, &(v)->counter, acq) \
: ia64_atomic64_fetch_add(__ia64_aar_i, v); \
})
@ -206,11 +187,7 @@ ATOMIC64_OPS(sub, -)
#define atomic64_fetch_sub(i,v) \
({ \
long __ia64_asr_i = (i); \
(__builtin_constant_p(i) \
&& ( (__ia64_asr_i == 1) || (__ia64_asr_i == 4) \
|| (__ia64_asr_i == 8) || (__ia64_asr_i == 16) \
|| (__ia64_asr_i == -1) || (__ia64_asr_i == -4) \
|| (__ia64_asr_i == -8) || (__ia64_asr_i == -16))) \
__ia64_atomic_const(i) \
? ia64_fetchadd(-__ia64_asr_i, &(v)->counter, acq) \
: ia64_atomic64_fetch_sub(__ia64_asr_i, v); \
})

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@ -117,7 +117,7 @@ store_call_start(struct device *dev, struct device_attribute *attr,
#ifdef ERR_INJ_DEBUG
printk(KERN_DEBUG "Returns: status=%d,\n", (int)status[cpu]);
printk(KERN_DEBUG "capapbilities=%lx,\n", capabilities[cpu]);
printk(KERN_DEBUG "capabilities=%lx,\n", capabilities[cpu]);
printk(KERN_DEBUG "resources=%lx\n", resources[cpu]);
#endif
return size;
@ -142,7 +142,7 @@ store_virtual_to_phys(struct device *dev, struct device_attribute *attr,
u64 virt_addr=simple_strtoull(buf, NULL, 16);
int ret;
ret = get_user_pages(virt_addr, 1, FOLL_WRITE, NULL, NULL);
ret = get_user_pages_fast(virt_addr, 1, FOLL_WRITE, NULL);
if (ret<=0) {
#ifdef ERR_INJ_DEBUG
printk("Virtual address %lx is not existing.\n",virt_addr);

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@ -16,7 +16,7 @@ import re
import sys
if len(sys.argv) != 2:
print "Usage: %s FILE" % sys.argv[0]
print("Usage: %s FILE" % sys.argv[0])
sys.exit(2)
readelf = os.getenv("READELF", "readelf")
@ -29,7 +29,7 @@ def check_func (func, slots, rlen_sum):
global num_errors
num_errors += 1
if not func: func = "[%#x-%#x]" % (start, end)
print "ERROR: %s: %lu slots, total region length = %lu" % (func, slots, rlen_sum)
print("ERROR: %s: %lu slots, total region length = %lu" % (func, slots, rlen_sum))
return
num_funcs = 0
@ -43,23 +43,23 @@ for line in os.popen("%s -u %s" % (readelf, sys.argv[1])):
check_func(func, slots, rlen_sum)
func = m.group(1)
start = long(m.group(2), 16)
end = long(m.group(3), 16)
start = int(m.group(2), 16)
end = int(m.group(3), 16)
slots = 3 * (end - start) / 16
rlen_sum = 0L
rlen_sum = 0
num_funcs += 1
else:
m = rlen_pattern.match(line)
if m:
rlen_sum += long(m.group(1))
rlen_sum += int(m.group(1))
check_func(func, slots, rlen_sum)
if num_errors == 0:
print "No errors detected in %u functions." % num_funcs
print("No errors detected in %u functions." % num_funcs)
else:
if num_errors > 1:
err="errors"
else:
err="error"
print "%u %s detected in %u functions." % (num_errors, err, num_funcs)
print("%u %s detected in %u functions." % (num_errors, err, num_funcs))
sys.exit(1)

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@ -24,6 +24,7 @@ config MICROBLAZE
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select NO_BOOTMEM
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_OPROFILE

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@ -8,7 +8,6 @@ menu "Platform options"
config OPT_LIB_FUNCTION
bool "Optimalized lib function"
depends on CPU_LITTLE_ENDIAN
default y
help
Allows turn on optimalized library function (memcpy and memmove).
@ -21,6 +20,7 @@ config OPT_LIB_FUNCTION
config OPT_LIB_ASM
bool "Optimalized lib function ASM"
depends on OPT_LIB_FUNCTION && (XILINX_MICROBLAZE0_USE_BARREL = 1)
depends on CPU_BIG_ENDIAN
default n
help
Allows turn on optimalized library function (memcpy and memmove).

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@ -44,7 +44,6 @@ void machine_shutdown(void);
void machine_halt(void);
void machine_power_off(void);
extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);
extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);
# endif /* __ASSEMBLY__ */

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@ -29,10 +29,6 @@
* between mem locations with size of xfer spec'd in bytes
*/
#ifdef __MICROBLAZEEL__
#error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
#endif
#include <linux/linkage.h>
.text
.globl memcpy

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@ -32,9 +32,6 @@ int mem_init_done;
#ifndef CONFIG_MMU
unsigned int __page_offset;
EXPORT_SYMBOL(__page_offset);
#else
static int init_bootmem_done;
#endif /* CONFIG_MMU */
char *klimit = _end;
@ -117,7 +114,6 @@ static void __init paging_init(void)
void __init setup_memory(void)
{
unsigned long map_size;
struct memblock_region *reg;
#ifndef CONFIG_MMU
@ -174,17 +170,6 @@ void __init setup_memory(void)
pr_info("%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
pr_info("%s: max_pfn: %#lx\n", __func__, max_pfn);
/*
* Find an area to use for the bootmem bitmap.
* We look for the first area which is at least
* 128kB in length (128kB is enough for a bitmap
* for 4GB of memory, using 4kB pages), plus 1 page
* (in case the address isn't page-aligned).
*/
map_size = init_bootmem_node(NODE_DATA(0),
PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn);
memblock_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size);
/* Add active regions with valid PFNs */
for_each_memblock(memory, reg) {
unsigned long start_pfn, end_pfn;
@ -196,32 +181,9 @@ void __init setup_memory(void)
&memblock.memory, 0);
}
/* free bootmem is whole main memory */
free_bootmem_with_active_regions(0, max_low_pfn);
/* reserve allocate blocks */
for_each_memblock(reserved, reg) {
unsigned long top = reg->base + reg->size - 1;
pr_debug("reserved - 0x%08x-0x%08x, %lx, %lx\n",
(u32) reg->base, (u32) reg->size, top,
memory_start + lowmem_size - 1);
if (top <= (memory_start + lowmem_size - 1)) {
reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
} else if (reg->base < (memory_start + lowmem_size - 1)) {
unsigned long trunc_size = memory_start + lowmem_size -
reg->base;
reserve_bootmem(reg->base, trunc_size, BOOTMEM_DEFAULT);
}
}
/* XXX need to clip this if using highmem? */
sparse_memory_present_with_active_regions(0);
#ifdef CONFIG_MMU
init_bootmem_done = 1;
#endif
paging_init();
}
@ -398,30 +360,16 @@ asmlinkage void __init mmu_init(void)
/* This is only called until mem_init is done. */
void __init *early_get_page(void)
{
void *p;
if (init_bootmem_done) {
p = alloc_bootmem_pages(PAGE_SIZE);
} else {
/*
* Mem start + kernel_tlb -> here is limit
* because of mem mapping from head.S
*/
p = __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
memory_start + kernel_tlb));
}
return p;
/*
* Mem start + kernel_tlb -> here is limit
* because of mem mapping from head.S
*/
return __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
memory_start + kernel_tlb));
}
#endif /* CONFIG_MMU */
void * __ref alloc_maybe_bootmem(size_t size, gfp_t mask)
{
if (mem_init_done)
return kmalloc(size, mask);
else
return alloc_bootmem(size);
}
void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
{
void *p;

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@ -135,6 +135,8 @@ int __init ath25_find_config(phys_addr_t base, unsigned long size)
}
board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
if (!board_data)
goto error;
ath25_board.config = (struct ath25_boarddata *)board_data;
memcpy_fromio(board_data, bcfg, 0x100);
if (broken_boarddata) {

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@ -2277,6 +2277,8 @@ static int __init octeon_irq_init_cib(struct device_node *ciu_node,
}
host_data = kzalloc(sizeof(*host_data), GFP_KERNEL);
if (!host_data)
return -ENOMEM;
raw_spin_lock_init(&host_data->lock);
addr = of_get_address(ciu_node, 0, NULL, NULL);

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@ -168,11 +168,11 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
return;
}
if (request_irq(IPI0_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
"smp_ipi0", NULL))
if (request_irq(IPI0_IRQ, bmips_ipi_interrupt,
IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi0", NULL))
panic("Can't request IPI0 interrupt");
if (request_irq(IPI1_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
"smp_ipi1", NULL))
if (request_irq(IPI1_IRQ, bmips_ipi_interrupt,
IRQF_PERCPU | IRQF_NO_SUSPEND, "smp_ipi1", NULL))
panic("Can't request IPI1 interrupt");
}

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@ -7,6 +7,8 @@ choice
config LEMOTE_FULOONG2E
bool "Lemote Fuloong(2e) mini-PC"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select CEVT_R4K
select CSRC_R4K
select SYS_HAS_CPU_LOONGSON2E
@ -33,6 +35,8 @@ config LEMOTE_FULOONG2E
config LEMOTE_MACH2F
bool "Lemote Loongson 2F family machines"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select BOARD_SCACHE
select BOOT_ELF32
select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
@ -62,6 +66,8 @@ config LEMOTE_MACH2F
config LOONGSON_MACH3X
bool "Generic Loongson 3 family machines"
select ARCH_SPARSEMEM_ENABLE
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select BOOT_ELF32
select BOARD_SCACHE

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@ -543,7 +543,8 @@ void flush_cache_mm(struct mm_struct *mm)
rp3440, etc. So, avoid it if the mm isn't too big. */
if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
mm_total_size(mm) >= parisc_cache_flush_threshold) {
flush_tlb_all();
if (mm->context)
flush_tlb_all();
flush_cache_all();
return;
}
@ -571,6 +572,8 @@ void flush_cache_mm(struct mm_struct *mm)
pfn = pte_pfn(*ptep);
if (!pfn_valid(pfn))
continue;
if (unlikely(mm->context))
flush_tlb_page(vma, addr);
__flush_cache_page(vma, addr, PFN_PHYS(pfn));
}
}
@ -579,26 +582,46 @@ void flush_cache_mm(struct mm_struct *mm)
void flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
pgd_t *pgd;
unsigned long addr;
if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
end - start >= parisc_cache_flush_threshold) {
flush_tlb_range(vma, start, end);
if (vma->vm_mm->context)
flush_tlb_range(vma, start, end);
flush_cache_all();
return;
}
flush_user_dcache_range_asm(start, end);
if (vma->vm_flags & VM_EXEC)
flush_user_icache_range_asm(start, end);
flush_tlb_range(vma, start, end);
if (vma->vm_mm->context == mfsp(3)) {
flush_user_dcache_range_asm(start, end);
if (vma->vm_flags & VM_EXEC)
flush_user_icache_range_asm(start, end);
flush_tlb_range(vma, start, end);
return;
}
pgd = vma->vm_mm->pgd;
for (addr = vma->vm_start; addr < vma->vm_end; addr += PAGE_SIZE) {
unsigned long pfn;
pte_t *ptep = get_ptep(pgd, addr);
if (!ptep)
continue;
pfn = pte_pfn(*ptep);
if (pfn_valid(pfn)) {
if (unlikely(vma->vm_mm->context))
flush_tlb_page(vma, addr);
__flush_cache_page(vma, addr, PFN_PHYS(pfn));
}
}
}
void
flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn)
{
BUG_ON(!vma->vm_mm->context);
if (pfn_valid(pfn)) {
flush_tlb_page(vma, vmaddr);
if (likely(vma->vm_mm->context))
flush_tlb_page(vma, vmaddr);
__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
}
}

View File

@ -101,7 +101,8 @@ $(addprefix $(obj)/,$(zlib-y)): \
libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
libfdtheader := fdt.h libfdt.h libfdt_internal.h
$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o): \
$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o \
treeboot-akebono.o treeboot-currituck.o treeboot-iss4xx.o): \
$(addprefix $(obj)/,$(libfdtheader))
src-wlib-y := string.S crt0.S stdio.c decompress.c main.c \

View File

@ -874,7 +874,6 @@ struct ibm_arch_vec __cacheline_aligned ibm_architecture_vec = {
.mmu = 0,
.hash_ext = 0,
.radix_ext = 0,
.byte22 = 0,
},
/* option vector 6: IBM PAPR hints */

View File

@ -195,6 +195,12 @@ static void kvmppc_pte_free(pte_t *ptep)
kmem_cache_free(kvm_pte_cache, ptep);
}
/* Like pmd_huge() and pmd_large(), but works regardless of config options */
static inline int pmd_is_leaf(pmd_t pmd)
{
return !!(pmd_val(pmd) & _PAGE_PTE);
}
static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
unsigned int level, unsigned long mmu_seq)
{
@ -219,7 +225,7 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
else
new_pmd = pmd_alloc_one(kvm->mm, gpa);
if (level == 0 && !(pmd && pmd_present(*pmd)))
if (level == 0 && !(pmd && pmd_present(*pmd) && !pmd_is_leaf(*pmd)))
new_ptep = kvmppc_pte_alloc();
/* Check if we might have been invalidated; let the guest retry if so */
@ -244,12 +250,30 @@ static int kvmppc_create_pte(struct kvm *kvm, pte_t pte, unsigned long gpa,
new_pmd = NULL;
}
pmd = pmd_offset(pud, gpa);
if (pmd_large(*pmd)) {
/* Someone else has instantiated a large page here; retry */
ret = -EAGAIN;
goto out_unlock;
}
if (level == 1 && !pmd_none(*pmd)) {
if (pmd_is_leaf(*pmd)) {
unsigned long lgpa = gpa & PMD_MASK;
/*
* If we raced with another CPU which has just put
* a 2MB pte in after we saw a pte page, try again.
*/
if (level == 0 && !new_ptep) {
ret = -EAGAIN;
goto out_unlock;
}
/* Valid 2MB page here already, remove it */
old = kvmppc_radix_update_pte(kvm, pmdp_ptep(pmd),
~0UL, 0, lgpa, PMD_SHIFT);
kvmppc_radix_tlbie_page(kvm, lgpa, PMD_SHIFT);
if (old & _PAGE_DIRTY) {
unsigned long gfn = lgpa >> PAGE_SHIFT;
struct kvm_memory_slot *memslot;
memslot = gfn_to_memslot(kvm, gfn);
if (memslot && memslot->dirty_bitmap)
kvmppc_update_dirty_map(memslot,
gfn, PMD_SIZE);
}
} else if (level == 1 && !pmd_none(*pmd)) {
/*
* There's a page table page here, but we wanted
* to install a large page. Tell the caller and let
@ -412,28 +436,24 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
} else {
page = pages[0];
pfn = page_to_pfn(page);
if (PageHuge(page)) {
page = compound_head(page);
pte_size <<= compound_order(page);
if (PageCompound(page)) {
pte_size <<= compound_order(compound_head(page));
/* See if we can insert a 2MB large-page PTE here */
if (pte_size >= PMD_SIZE &&
(gpa & PMD_MASK & PAGE_MASK) ==
(hva & PMD_MASK & PAGE_MASK)) {
(gpa & (PMD_SIZE - PAGE_SIZE)) ==
(hva & (PMD_SIZE - PAGE_SIZE))) {
level = 1;
pfn &= ~((PMD_SIZE >> PAGE_SHIFT) - 1);
}
}
/* See if we can provide write access */
if (writing) {
/*
* We assume gup_fast has set dirty on the host PTE.
*/
pgflags |= _PAGE_WRITE;
} else {
local_irq_save(flags);
ptep = find_current_mm_pte(current->mm->pgd,
hva, NULL, NULL);
if (ptep && pte_write(*ptep) && pte_dirty(*ptep))
if (ptep && pte_write(*ptep))
pgflags |= _PAGE_WRITE;
local_irq_restore(flags);
}
@ -459,18 +479,15 @@ int kvmppc_book3s_radix_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
pte = pfn_pte(pfn, __pgprot(pgflags));
ret = kvmppc_create_pte(kvm, pte, gpa, level, mmu_seq);
}
if (ret == 0 || ret == -EAGAIN)
ret = RESUME_GUEST;
if (page) {
/*
* We drop pages[0] here, not page because page might
* have been set to the head page of a compound, but
* we have to drop the reference on the correct tail
* page to match the get inside gup()
*/
put_page(pages[0]);
if (!ret && (pgflags & _PAGE_WRITE))
set_page_dirty_lock(page);
put_page(page);
}
if (ret == 0 || ret == -EAGAIN)
ret = RESUME_GUEST;
return ret;
}
@ -644,7 +661,7 @@ void kvmppc_free_radix(struct kvm *kvm)
continue;
pmd = pmd_offset(pud, 0);
for (im = 0; im < PTRS_PER_PMD; ++im, ++pmd) {
if (pmd_huge(*pmd)) {
if (pmd_is_leaf(*pmd)) {
pmd_clear(pmd);
continue;
}

View File

@ -2885,7 +2885,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
*/
trace_hardirqs_on();
guest_enter();
guest_enter_irqoff();
srcu_idx = srcu_read_lock(&vc->kvm->srcu);
@ -2893,8 +2893,6 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
guest_exit();
trace_hardirqs_off();
set_irq_happened(trap);
@ -2937,6 +2935,7 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
kvmppc_set_host_core(pcpu);
local_irq_enable();
guest_exit();
/* Let secondaries go back to the offline loop */
for (i = 0; i < controlled_threads; ++i) {
@ -3656,15 +3655,17 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
goto up_out;
psize = vma_kernel_pagesize(vma);
porder = __ilog2(psize);
up_read(&current->mm->mmap_sem);
/* We can handle 4k, 64k or 16M pages in the VRMA */
err = -EINVAL;
if (!(psize == 0x1000 || psize == 0x10000 ||
psize == 0x1000000))
goto out_srcu;
if (psize >= 0x1000000)
psize = 0x1000000;
else if (psize >= 0x10000)
psize = 0x10000;
else
psize = 0x1000;
porder = __ilog2(psize);
senc = slb_pgsize_encoding(psize);
kvm->arch.vrma_slb_v = senc | SLB_VSID_B_1T |

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@ -320,7 +320,6 @@ kvm_novcpu_exit:
stw r12, STACK_SLOT_TRAP(r1)
bl kvmhv_commence_exit
nop
lwz r12, STACK_SLOT_TRAP(r1)
b kvmhv_switch_to_host
/*
@ -1220,6 +1219,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
secondary_too_late:
li r12, 0
stw r12, STACK_SLOT_TRAP(r1)
cmpdi r4, 0
beq 11f
stw r12, VCPU_TRAP(r4)
@ -1558,12 +1558,12 @@ mc_cont:
3: stw r5,VCPU_SLB_MAX(r9)
guest_bypass:
stw r12, STACK_SLOT_TRAP(r1)
mr r3, r12
/* Increment exit count, poke other threads to exit */
bl kvmhv_commence_exit
nop
ld r9, HSTATE_KVM_VCPU(r13)
lwz r12, VCPU_TRAP(r9)
/* Stop others sending VCPU interrupts to this physical CPU */
li r0, -1
@ -1898,6 +1898,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1)
* POWER7/POWER8 guest -> host partition switch code.
* We don't have to lock against tlbies but we do
* have to coordinate the hardware threads.
* Here STACK_SLOT_TRAP(r1) contains the trap number.
*/
kvmhv_switch_to_host:
/* Secondary threads wait for primary to do partition switch */
@ -1950,12 +1951,12 @@ BEGIN_FTR_SECTION
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
/* If HMI, call kvmppc_realmode_hmi_handler() */
lwz r12, STACK_SLOT_TRAP(r1)
cmpwi r12, BOOK3S_INTERRUPT_HMI
bne 27f
bl kvmppc_realmode_hmi_handler
nop
cmpdi r3, 0
li r12, BOOK3S_INTERRUPT_HMI
/*
* At this point kvmppc_realmode_hmi_handler may have resync-ed
* the TB, and if it has, we must not subtract the guest timebase
@ -2008,10 +2009,8 @@ BEGIN_FTR_SECTION
lwz r8, KVM_SPLIT_DO_RESTORE(r3)
cmpwi r8, 0
beq 47f
stw r12, STACK_SLOT_TRAP(r1)
bl kvmhv_p9_restore_lpcr
nop
lwz r12, STACK_SLOT_TRAP(r1)
b 48f
47:
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
@ -2049,6 +2048,7 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX)
li r0, KVM_GUEST_MODE_NONE
stb r0, HSTATE_IN_GUEST(r13)
lwz r12, STACK_SLOT_TRAP(r1) /* return trap # in r12 */
ld r0, SFS+PPC_LR_STKOFF(r1)
addi r1, r1, SFS
mtlr r0

View File

@ -1345,7 +1345,7 @@ static int kvmppc_emulate_mmio_vsx_loadstore(struct kvm_vcpu *vcpu,
int kvmppc_handle_load128_by2x64(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, int is_default_endian)
{
enum emulation_result emulated;
enum emulation_result emulated = EMULATE_DONE;
while (vcpu->arch.mmio_vmx_copy_nums) {
emulated = __kvmppc_handle_load(run, vcpu, rt, 8,
@ -1608,7 +1608,9 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
kvm_sigset_deactivate(vcpu);
#ifdef CONFIG_ALTIVEC
out:
#endif
vcpu_put(vcpu);
return r;
}

View File

@ -240,6 +240,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32
* goto out;
*/
PPC_LWZ(b2p[TMP_REG_1], b2p_bpf_array, offsetof(struct bpf_array, map.max_entries));
PPC_RLWINM(b2p_index, b2p_index, 0, 0, 31);
PPC_CMPLW(b2p_index, b2p[TMP_REG_1]);
PPC_BCC(COND_GE, out);

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@ -63,6 +63,7 @@ static inline int init_new_context(struct task_struct *tsk,
_ASCE_USER_BITS | _ASCE_TYPE_SEGMENT;
/* pgd_alloc() did not account this pmd */
mm_inc_nr_pmds(mm);
mm_inc_nr_puds(mm);
}
crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm));
return 0;

View File

@ -14,6 +14,7 @@
#include <asm/processor.h>
#include <asm/cache.h>
#include <asm/ctl_reg.h>
#include <asm/dwarf.h>
#include <asm/errno.h>
#include <asm/ptrace.h>
#include <asm/thread_info.h>
@ -230,7 +231,7 @@ _PIF_WORK = (_PIF_PER_TRAP | _PIF_SYSCALL_RESTART)
.hidden \name
.type \name,@function
\name:
.cfi_startproc
CFI_STARTPROC
#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
exrl 0,0f
#else
@ -239,7 +240,7 @@ _PIF_WORK = (_PIF_PER_TRAP | _PIF_SYSCALL_RESTART)
#endif
j .
0: br \reg
.cfi_endproc
CFI_ENDPROC
.endm
GEN_BR_THUNK __s390x_indirect_jump_r1use_r9,%r9,%r1
@ -426,13 +427,13 @@ ENTRY(system_call)
UPDATE_VTIME %r8,%r9,__LC_SYNC_ENTER_TIMER
BPENTER __TI_flags(%r12),_TIF_ISOLATE_BP
stmg %r0,%r7,__PT_R0(%r11)
# clear user controlled register to prevent speculative use
xgr %r0,%r0
mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC
mvc __PT_PSW(16,%r11),__LC_SVC_OLD_PSW
mvc __PT_INT_CODE(4,%r11),__LC_SVC_ILC
stg %r14,__PT_FLAGS(%r11)
.Lsysc_do_svc:
# clear user controlled register to prevent speculative use
xgr %r0,%r0
# load address of system call table
lg %r10,__THREAD_sysc_table(%r13,%r12)
llgh %r8,__PT_INT_CODE+2(%r11)
@ -1439,6 +1440,7 @@ cleanup_critical:
stg %r15,__LC_SYSTEM_TIMER
0: # update accounting time stamp
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
BPENTER __TI_flags(%r12),_TIF_ISOLATE_BP
# set up saved register r11
lg %r15,__LC_KERNEL_STACK
la %r9,STACK_FRAME_OVERHEAD(%r15)

View File

@ -2,8 +2,8 @@
#include <linux/module.h>
#include <asm/nospec-branch.h>
int nospec_call_disable = IS_ENABLED(EXPOLINE_OFF);
int nospec_return_disable = !IS_ENABLED(EXPOLINE_FULL);
int nospec_call_disable = IS_ENABLED(CONFIG_EXPOLINE_OFF);
int nospec_return_disable = !IS_ENABLED(CONFIG_EXPOLINE_FULL);
static int __init nospectre_v2_setup_early(char *str)
{

View File

@ -86,6 +86,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "deliver_prefix_signal", VCPU_STAT(deliver_prefix_signal) },
{ "deliver_restart_signal", VCPU_STAT(deliver_restart_signal) },
{ "deliver_program_interruption", VCPU_STAT(deliver_program_int) },
{ "deliver_io_interrupt", VCPU_STAT(deliver_io_int) },
{ "exit_wait_state", VCPU_STAT(exit_wait_state) },
{ "instruction_epsw", VCPU_STAT(instruction_epsw) },
{ "instruction_gs", VCPU_STAT(instruction_gs) },
@ -2146,6 +2147,7 @@ static void sca_add_vcpu(struct kvm_vcpu *vcpu)
/* we still need the basic sca for the ipte control */
vcpu->arch.sie_block->scaoh = (__u32)(((__u64)sca) >> 32);
vcpu->arch.sie_block->scaol = (__u32)(__u64)sca;
return;
}
read_lock(&vcpu->kvm->arch.sca_lock);
if (vcpu->kvm->arch.use_esca) {

View File

@ -163,13 +163,10 @@ static void tlb_batch_pmd_scan(struct mm_struct *mm, unsigned long vaddr,
pte_unmap(pte);
}
void set_pmd_at(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t pmd)
static void __set_pmd_acct(struct mm_struct *mm, unsigned long addr,
pmd_t orig, pmd_t pmd)
{
pmd_t orig = *pmdp;
*pmdp = pmd;
if (mm == &init_mm)
return;
@ -219,6 +216,15 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
}
}
void set_pmd_at(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t pmd)
{
pmd_t orig = *pmdp;
*pmdp = pmd;
__set_pmd_acct(mm, addr, orig, pmd);
}
static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp, pmd_t pmd)
{
@ -227,6 +233,7 @@ static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
do {
old = *pmdp;
} while (cmpxchg64(&pmdp->pmd, old.pmd, pmd.pmd) != old.pmd);
__set_pmd_acct(vma->vm_mm, address, old, pmd);
return old;
}

View File

@ -2307,7 +2307,7 @@ choice
it can be used to assist security vulnerability exploitation.
This setting can be changed at boot time via the kernel command
line parameter vsyscall=[native|emulate|none].
line parameter vsyscall=[emulate|none].
On a system with recent enough glibc (2.14 or newer) and no
static binaries, you can say None without a performance penalty
@ -2315,15 +2315,6 @@ choice
If unsure, select "Emulate".
config LEGACY_VSYSCALL_NATIVE
bool "Native"
help
Actual executable code is located in the fixed vsyscall
address mapping, implementing time() efficiently. Since
this makes the mapping executable, it can be used during
security vulnerability exploitation (traditionally as
ROP gadgets). This configuration is not recommended.
config LEGACY_VSYSCALL_EMULATE
bool "Emulate"
help

View File

@ -363,9 +363,7 @@ ENTRY(entry_INT80_compat)
pushq 2*8(%rdi) /* regs->ip */
pushq 1*8(%rdi) /* regs->orig_ax */
movq (%rdi), %rdi /* restore %rdi */
pushq %rdi /* pt_regs->di */
pushq (%rdi) /* pt_regs->di */
pushq %rsi /* pt_regs->si */
pushq %rdx /* pt_regs->dx */
pushq %rcx /* pt_regs->cx */
@ -406,15 +404,3 @@ ENTRY(entry_INT80_compat)
TRACE_IRQS_ON
jmp swapgs_restore_regs_and_return_to_usermode
END(entry_INT80_compat)
ENTRY(stub32_clone)
/*
* The 32-bit clone ABI is: clone(..., int tls_val, int *child_tidptr).
* The 64-bit clone ABI is: clone(..., int *child_tidptr, int tls_val).
*
* The native 64-bit kernel's sys_clone() implements the latter,
* so we need to swap arguments here before calling it:
*/
xchg %r8, %rcx
jmp sys_clone
ENDPROC(stub32_clone)

View File

@ -8,12 +8,12 @@
#
0 i386 restart_syscall sys_restart_syscall
1 i386 exit sys_exit
2 i386 fork sys_fork sys_fork
2 i386 fork sys_fork
3 i386 read sys_read
4 i386 write sys_write
5 i386 open sys_open compat_sys_open
6 i386 close sys_close
7 i386 waitpid sys_waitpid sys32_waitpid
7 i386 waitpid sys_waitpid compat_sys_x86_waitpid
8 i386 creat sys_creat
9 i386 link sys_link
10 i386 unlink sys_unlink
@ -78,7 +78,7 @@
69 i386 ssetmask sys_ssetmask
70 i386 setreuid sys_setreuid16
71 i386 setregid sys_setregid16
72 i386 sigsuspend sys_sigsuspend sys_sigsuspend
72 i386 sigsuspend sys_sigsuspend
73 i386 sigpending sys_sigpending compat_sys_sigpending
74 i386 sethostname sys_sethostname
75 i386 setrlimit sys_setrlimit compat_sys_setrlimit
@ -96,7 +96,7 @@
87 i386 swapon sys_swapon
88 i386 reboot sys_reboot
89 i386 readdir sys_old_readdir compat_sys_old_readdir
90 i386 mmap sys_old_mmap sys32_mmap
90 i386 mmap sys_old_mmap compat_sys_x86_mmap
91 i386 munmap sys_munmap
92 i386 truncate sys_truncate compat_sys_truncate
93 i386 ftruncate sys_ftruncate compat_sys_ftruncate
@ -126,7 +126,7 @@
117 i386 ipc sys_ipc compat_sys_ipc
118 i386 fsync sys_fsync
119 i386 sigreturn sys_sigreturn sys32_sigreturn
120 i386 clone sys_clone stub32_clone
120 i386 clone sys_clone compat_sys_x86_clone
121 i386 setdomainname sys_setdomainname
122 i386 uname sys_newuname
123 i386 modify_ldt sys_modify_ldt
@ -186,8 +186,8 @@
177 i386 rt_sigtimedwait sys_rt_sigtimedwait compat_sys_rt_sigtimedwait
178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo
179 i386 rt_sigsuspend sys_rt_sigsuspend
180 i386 pread64 sys_pread64 sys32_pread
181 i386 pwrite64 sys_pwrite64 sys32_pwrite
180 i386 pread64 sys_pread64 compat_sys_x86_pread
181 i386 pwrite64 sys_pwrite64 compat_sys_x86_pwrite
182 i386 chown sys_chown16
183 i386 getcwd sys_getcwd
184 i386 capget sys_capget
@ -196,14 +196,14 @@
187 i386 sendfile sys_sendfile compat_sys_sendfile
188 i386 getpmsg
189 i386 putpmsg
190 i386 vfork sys_vfork sys_vfork
190 i386 vfork sys_vfork
191 i386 ugetrlimit sys_getrlimit compat_sys_getrlimit
192 i386 mmap2 sys_mmap_pgoff
193 i386 truncate64 sys_truncate64 sys32_truncate64
194 i386 ftruncate64 sys_ftruncate64 sys32_ftruncate64
195 i386 stat64 sys_stat64 sys32_stat64
196 i386 lstat64 sys_lstat64 sys32_lstat64
197 i386 fstat64 sys_fstat64 sys32_fstat64
193 i386 truncate64 sys_truncate64 compat_sys_x86_truncate64
194 i386 ftruncate64 sys_ftruncate64 compat_sys_x86_ftruncate64
195 i386 stat64 sys_stat64 compat_sys_x86_stat64
196 i386 lstat64 sys_lstat64 compat_sys_x86_lstat64
197 i386 fstat64 sys_fstat64 compat_sys_x86_fstat64
198 i386 lchown32 sys_lchown
199 i386 getuid32 sys_getuid
200 i386 getgid32 sys_getgid
@ -231,7 +231,7 @@
# 222 is unused
# 223 is unused
224 i386 gettid sys_gettid
225 i386 readahead sys_readahead sys32_readahead
225 i386 readahead sys_readahead compat_sys_x86_readahead
226 i386 setxattr sys_setxattr
227 i386 lsetxattr sys_lsetxattr
228 i386 fsetxattr sys_fsetxattr
@ -256,7 +256,7 @@
247 i386 io_getevents sys_io_getevents compat_sys_io_getevents
248 i386 io_submit sys_io_submit compat_sys_io_submit
249 i386 io_cancel sys_io_cancel
250 i386 fadvise64 sys_fadvise64 sys32_fadvise64
250 i386 fadvise64 sys_fadvise64 compat_sys_x86_fadvise64
# 251 is available for reuse (was briefly sys_set_zone_reclaim)
252 i386 exit_group sys_exit_group
253 i386 lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie
@ -278,7 +278,7 @@
269 i386 fstatfs64 sys_fstatfs64 compat_sys_fstatfs64
270 i386 tgkill sys_tgkill
271 i386 utimes sys_utimes compat_sys_utimes
272 i386 fadvise64_64 sys_fadvise64_64 sys32_fadvise64_64
272 i386 fadvise64_64 sys_fadvise64_64 compat_sys_x86_fadvise64_64
273 i386 vserver
274 i386 mbind sys_mbind
275 i386 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
@ -306,7 +306,7 @@
297 i386 mknodat sys_mknodat
298 i386 fchownat sys_fchownat
299 i386 futimesat sys_futimesat compat_sys_futimesat
300 i386 fstatat64 sys_fstatat64 sys32_fstatat
300 i386 fstatat64 sys_fstatat64 compat_sys_x86_fstatat
301 i386 unlinkat sys_unlinkat
302 i386 renameat sys_renameat
303 i386 linkat sys_linkat
@ -320,7 +320,7 @@
311 i386 set_robust_list sys_set_robust_list compat_sys_set_robust_list
312 i386 get_robust_list sys_get_robust_list compat_sys_get_robust_list
313 i386 splice sys_splice
314 i386 sync_file_range sys_sync_file_range sys32_sync_file_range
314 i386 sync_file_range sys_sync_file_range compat_sys_x86_sync_file_range
315 i386 tee sys_tee
316 i386 vmsplice sys_vmsplice compat_sys_vmsplice
317 i386 move_pages sys_move_pages compat_sys_move_pages
@ -330,7 +330,7 @@
321 i386 signalfd sys_signalfd compat_sys_signalfd
322 i386 timerfd_create sys_timerfd_create
323 i386 eventfd sys_eventfd
324 i386 fallocate sys_fallocate sys32_fallocate
324 i386 fallocate sys_fallocate compat_sys_x86_fallocate
325 i386 timerfd_settime sys_timerfd_settime compat_sys_timerfd_settime
326 i386 timerfd_gettime sys_timerfd_gettime compat_sys_timerfd_gettime
327 i386 signalfd4 sys_signalfd4 compat_sys_signalfd4

View File

@ -42,10 +42,8 @@
#define CREATE_TRACE_POINTS
#include "vsyscall_trace.h"
static enum { EMULATE, NATIVE, NONE } vsyscall_mode =
#if defined(CONFIG_LEGACY_VSYSCALL_NATIVE)
NATIVE;
#elif defined(CONFIG_LEGACY_VSYSCALL_NONE)
static enum { EMULATE, NONE } vsyscall_mode =
#ifdef CONFIG_LEGACY_VSYSCALL_NONE
NONE;
#else
EMULATE;
@ -56,8 +54,6 @@ static int __init vsyscall_setup(char *str)
if (str) {
if (!strcmp("emulate", str))
vsyscall_mode = EMULATE;
else if (!strcmp("native", str))
vsyscall_mode = NATIVE;
else if (!strcmp("none", str))
vsyscall_mode = NONE;
else
@ -139,10 +135,6 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
WARN_ON_ONCE(address != regs->ip);
/* This should be unreachable in NATIVE mode. */
if (WARN_ON(vsyscall_mode == NATIVE))
return false;
if (vsyscall_mode == NONE) {
warn_bad_vsyscall(KERN_INFO, regs,
"vsyscall attempted with vsyscall=none");
@ -370,9 +362,7 @@ void __init map_vsyscall(void)
if (vsyscall_mode != NONE) {
__set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall,
vsyscall_mode == NATIVE
? PAGE_KERNEL_VSYSCALL
: PAGE_KERNEL_VVAR);
PAGE_KERNEL_VVAR);
set_vsyscall_pgtable_user_bits(swapper_pg_dir);
}

View File

@ -51,15 +51,14 @@
#define AA(__x) ((unsigned long)(__x))
asmlinkage long sys32_truncate64(const char __user *filename,
unsigned long offset_low,
unsigned long offset_high)
COMPAT_SYSCALL_DEFINE3(x86_truncate64, const char __user *, filename,
unsigned long, offset_low, unsigned long, offset_high)
{
return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
}
asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
unsigned long offset_high)
COMPAT_SYSCALL_DEFINE3(x86_ftruncate64, unsigned int, fd,
unsigned long, offset_low, unsigned long, offset_high)
{
return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
}
@ -96,8 +95,8 @@ static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
return 0;
}
asmlinkage long sys32_stat64(const char __user *filename,
struct stat64 __user *statbuf)
COMPAT_SYSCALL_DEFINE2(x86_stat64, const char __user *, filename,
struct stat64 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_stat(filename, &stat);
@ -107,8 +106,8 @@ asmlinkage long sys32_stat64(const char __user *filename,
return ret;
}
asmlinkage long sys32_lstat64(const char __user *filename,
struct stat64 __user *statbuf)
COMPAT_SYSCALL_DEFINE2(x86_lstat64, const char __user *, filename,
struct stat64 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_lstat(filename, &stat);
@ -117,7 +116,8 @@ asmlinkage long sys32_lstat64(const char __user *filename,
return ret;
}
asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
COMPAT_SYSCALL_DEFINE2(x86_fstat64, unsigned int, fd,
struct stat64 __user *, statbuf)
{
struct kstat stat;
int ret = vfs_fstat(fd, &stat);
@ -126,8 +126,9 @@ asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
return ret;
}
asmlinkage long sys32_fstatat(unsigned int dfd, const char __user *filename,
struct stat64 __user *statbuf, int flag)
COMPAT_SYSCALL_DEFINE4(x86_fstatat, unsigned int, dfd,
const char __user *, filename,
struct stat64 __user *, statbuf, int, flag)
{
struct kstat stat;
int error;
@ -153,7 +154,7 @@ struct mmap_arg_struct32 {
unsigned int offset;
};
asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg)
COMPAT_SYSCALL_DEFINE1(x86_mmap, struct mmap_arg_struct32 __user *, arg)
{
struct mmap_arg_struct32 a;
@ -167,22 +168,22 @@ asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg)
a.offset>>PAGE_SHIFT);
}
asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int __user *stat_addr,
int options)
COMPAT_SYSCALL_DEFINE3(x86_waitpid, compat_pid_t, pid, unsigned int __user *,
stat_addr, int, options)
{
return compat_sys_wait4(pid, stat_addr, options, NULL);
}
/* warning: next two assume little endian */
asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
u32 poslo, u32 poshi)
COMPAT_SYSCALL_DEFINE5(x86_pread, unsigned int, fd, char __user *, ubuf,
u32, count, u32, poslo, u32, poshi)
{
return sys_pread64(fd, ubuf, count,
((loff_t)AA(poshi) << 32) | AA(poslo));
}
asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf,
u32 count, u32 poslo, u32 poshi)
COMPAT_SYSCALL_DEFINE5(x86_pwrite, unsigned int, fd, const char __user *, ubuf,
u32, count, u32, poslo, u32, poshi)
{
return sys_pwrite64(fd, ubuf, count,
((loff_t)AA(poshi) << 32) | AA(poslo));
@ -193,8 +194,9 @@ asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf,
* Some system calls that need sign extended arguments. This could be
* done by a generic wrapper.
*/
long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
__u32 len_low, __u32 len_high, int advice)
COMPAT_SYSCALL_DEFINE6(x86_fadvise64_64, int, fd, __u32, offset_low,
__u32, offset_high, __u32, len_low, __u32, len_high,
int, advice)
{
return sys_fadvise64_64(fd,
(((u64)offset_high)<<32) | offset_low,
@ -202,31 +204,43 @@ long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
advice);
}
asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
size_t count)
COMPAT_SYSCALL_DEFINE4(x86_readahead, int, fd, unsigned int, off_lo,
unsigned int, off_hi, size_t, count)
{
return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count);
}
asmlinkage long sys32_sync_file_range(int fd, unsigned off_low, unsigned off_hi,
unsigned n_low, unsigned n_hi, int flags)
COMPAT_SYSCALL_DEFINE6(x86_sync_file_range, int, fd, unsigned int, off_low,
unsigned int, off_hi, unsigned int, n_low,
unsigned int, n_hi, int, flags)
{
return sys_sync_file_range(fd,
((u64)off_hi << 32) | off_low,
((u64)n_hi << 32) | n_low, flags);
}
asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi,
size_t len, int advice)
COMPAT_SYSCALL_DEFINE5(x86_fadvise64, int, fd, unsigned int, offset_lo,
unsigned int, offset_hi, size_t, len, int, advice)
{
return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo,
len, advice);
}
asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_lo,
unsigned offset_hi, unsigned len_lo,
unsigned len_hi)
COMPAT_SYSCALL_DEFINE6(x86_fallocate, int, fd, int, mode,
unsigned int, offset_lo, unsigned int, offset_hi,
unsigned int, len_lo, unsigned int, len_hi)
{
return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
((u64)len_hi << 32) | len_lo);
}
/*
* The 32-bit clone ABI is CONFIG_CLONE_BACKWARDS
*/
COMPAT_SYSCALL_DEFINE5(x86_clone, unsigned long, clone_flags,
unsigned long, newsp, int __user *, parent_tidptr,
unsigned long, tls_val, int __user *, child_tidptr)
{
return sys_clone(clone_flags, newsp, parent_tidptr, child_tidptr,
tls_val);
}

View File

@ -316,6 +316,7 @@
#define X86_FEATURE_VPCLMULQDQ (16*32+10) /* Carry-Less Multiplication Double Quadword */
#define X86_FEATURE_AVX512_VNNI (16*32+11) /* Vector Neural Network Instructions */
#define X86_FEATURE_AVX512_BITALG (16*32+12) /* Support for VPOPCNT[B,W] and VPSHUF-BITQMB instructions */
#define X86_FEATURE_TME (16*32+13) /* Intel Total Memory Encryption */
#define X86_FEATURE_AVX512_VPOPCNTDQ (16*32+14) /* POPCNT for vectors of DW/QW */
#define X86_FEATURE_LA57 (16*32+16) /* 5-level page tables */
#define X86_FEATURE_RDPID (16*32+22) /* RDPID instruction */
@ -328,6 +329,7 @@
/* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
#define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
#define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
#define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
#define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */
#define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */

View File

@ -39,6 +39,7 @@ struct device;
enum ucode_state {
UCODE_OK = 0,
UCODE_NEW,
UCODE_UPDATED,
UCODE_NFOUND,
UCODE_ERROR,

View File

@ -183,7 +183,10 @@
* otherwise we'll run out of registers. We don't care about CET
* here, anyway.
*/
# define CALL_NOSPEC ALTERNATIVE("call *%[thunk_target]\n", \
# define CALL_NOSPEC \
ALTERNATIVE( \
ANNOTATE_RETPOLINE_SAFE \
"call *%[thunk_target]\n", \
" jmp 904f;\n" \
" .align 16\n" \
"901: call 903f;\n" \

View File

@ -174,7 +174,6 @@ enum page_cache_mode {
#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_NOCACHE)
#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
#define __PAGE_KERNEL_VVAR (__PAGE_KERNEL_RO | _PAGE_USER)
#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
@ -206,7 +205,6 @@ enum page_cache_mode {
#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE | _PAGE_ENC)
#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE | _PAGE_ENC)
#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC | _PAGE_ENC)
#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL | _PAGE_ENC)
#define PAGE_KERNEL_VVAR __pgprot(__PAGE_KERNEL_VVAR | _PAGE_ENC)
#define PAGE_KERNEL_IO __pgprot(__PAGE_KERNEL_IO)

View File

@ -10,6 +10,7 @@ extern struct exception_table_entry __stop___ex_table[];
#if defined(CONFIG_X86_64)
extern char __end_rodata_hpage_align[];
extern char __entry_trampoline_start[], __entry_trampoline_end[];
#endif
#endif /* _ASM_X86_SECTIONS_H */

View File

@ -20,31 +20,43 @@
#include <asm/ia32.h>
/* ia32/sys_ia32.c */
asmlinkage long sys32_truncate64(const char __user *, unsigned long, unsigned long);
asmlinkage long sys32_ftruncate64(unsigned int, unsigned long, unsigned long);
asmlinkage long compat_sys_x86_truncate64(const char __user *, unsigned long,
unsigned long);
asmlinkage long compat_sys_x86_ftruncate64(unsigned int, unsigned long,
unsigned long);
asmlinkage long sys32_stat64(const char __user *, struct stat64 __user *);
asmlinkage long sys32_lstat64(const char __user *, struct stat64 __user *);
asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *);
asmlinkage long sys32_fstatat(unsigned int, const char __user *,
asmlinkage long compat_sys_x86_stat64(const char __user *,
struct stat64 __user *);
asmlinkage long compat_sys_x86_lstat64(const char __user *,
struct stat64 __user *);
asmlinkage long compat_sys_x86_fstat64(unsigned int, struct stat64 __user *);
asmlinkage long compat_sys_x86_fstatat(unsigned int, const char __user *,
struct stat64 __user *, int);
struct mmap_arg_struct32;
asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *);
asmlinkage long compat_sys_x86_mmap(struct mmap_arg_struct32 __user *);
asmlinkage long sys32_waitpid(compat_pid_t, unsigned int __user *, int);
asmlinkage long compat_sys_x86_waitpid(compat_pid_t, unsigned int __user *,
int);
asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);
asmlinkage long compat_sys_x86_pread(unsigned int, char __user *, u32, u32,
u32);
asmlinkage long compat_sys_x86_pwrite(unsigned int, const char __user *, u32,
u32, u32);
long sys32_fadvise64_64(int, __u32, __u32, __u32, __u32, int);
long sys32_vm86_warning(void);
asmlinkage long compat_sys_x86_fadvise64_64(int, __u32, __u32, __u32, __u32,
int);
asmlinkage ssize_t sys32_readahead(int, unsigned, unsigned, size_t);
asmlinkage long sys32_sync_file_range(int, unsigned, unsigned,
unsigned, unsigned, int);
asmlinkage long sys32_fadvise64(int, unsigned, unsigned, size_t, int);
asmlinkage long sys32_fallocate(int, int, unsigned,
unsigned, unsigned, unsigned);
asmlinkage ssize_t compat_sys_x86_readahead(int, unsigned int, unsigned int,
size_t);
asmlinkage long compat_sys_x86_sync_file_range(int, unsigned int, unsigned int,
unsigned int, unsigned int,
int);
asmlinkage long compat_sys_x86_fadvise64(int, unsigned int, unsigned int,
size_t, int);
asmlinkage long compat_sys_x86_fallocate(int, int, unsigned int, unsigned int,
unsigned int, unsigned int);
asmlinkage long compat_sys_x86_clone(unsigned long, unsigned long, int __user *,
unsigned long, int __user *);
/* ia32/ia32_signal.c */
asmlinkage long sys32_sigreturn(void);

View File

@ -30,6 +30,7 @@ struct mce {
__u64 synd; /* MCA_SYND MSR: only valid on SMCA systems */
__u64 ipid; /* MCA_IPID MSR: only valid on SMCA systems */
__u64 ppin; /* Protected Processor Inventory Number */
__u32 microcode;/* Microcode revision */
};
#define MCE_GET_RECORD_LEN _IOR('M', 1, int)

View File

@ -105,7 +105,7 @@ static void probe_xeon_phi_r3mwait(struct cpuinfo_x86 *c)
/*
* Early microcode releases for the Spectre v2 mitigation were broken.
* Information taken from;
* - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/01/microcode-update-guidance.pdf
* - https://newsroom.intel.com/wp-content/uploads/sites/11/2018/03/microcode-update-guidance.pdf
* - https://kb.vmware.com/s/article/52345
* - Microcode revisions observed in the wild
* - Release note from 20180108 microcode release
@ -123,7 +123,6 @@ static const struct sku_microcode spectre_bad_microcodes[] = {
{ INTEL_FAM6_KABYLAKE_MOBILE, 0x09, 0x80 },
{ INTEL_FAM6_SKYLAKE_X, 0x03, 0x0100013e },
{ INTEL_FAM6_SKYLAKE_X, 0x04, 0x0200003c },
{ INTEL_FAM6_SKYLAKE_DESKTOP, 0x03, 0xc2 },
{ INTEL_FAM6_BROADWELL_CORE, 0x04, 0x28 },
{ INTEL_FAM6_BROADWELL_GT3E, 0x01, 0x1b },
{ INTEL_FAM6_BROADWELL_XEON_D, 0x02, 0x14 },
@ -144,6 +143,13 @@ static bool bad_spectre_microcode(struct cpuinfo_x86 *c)
{
int i;
/*
* We know that the hypervisor lie to us on the microcode version so
* we may as well hope that it is running the correct version.
*/
if (cpu_has(c, X86_FEATURE_HYPERVISOR))
return false;
for (i = 0; i < ARRAY_SIZE(spectre_bad_microcodes); i++) {
if (c->x86_model == spectre_bad_microcodes[i].model &&
c->x86_stepping == spectre_bad_microcodes[i].stepping)

View File

@ -56,6 +56,9 @@
static DEFINE_MUTEX(mce_log_mutex);
/* sysfs synchronization */
static DEFINE_MUTEX(mce_sysfs_mutex);
#define CREATE_TRACE_POINTS
#include <trace/events/mce.h>
@ -130,6 +133,8 @@ void mce_setup(struct mce *m)
if (this_cpu_has(X86_FEATURE_INTEL_PPIN))
rdmsrl(MSR_PPIN, m->ppin);
m->microcode = boot_cpu_data.microcode;
}
DEFINE_PER_CPU(struct mce, injectm);
@ -262,7 +267,7 @@ static void __print_mce(struct mce *m)
*/
pr_emerg(HW_ERR "PROCESSOR %u:%x TIME %llu SOCKET %u APIC %x microcode %x\n",
m->cpuvendor, m->cpuid, m->time, m->socketid, m->apicid,
cpu_data(m->extcpu).microcode);
m->microcode);
}
static void print_mce(struct mce *m)
@ -2086,6 +2091,7 @@ static ssize_t set_ignore_ce(struct device *s,
if (kstrtou64(buf, 0, &new) < 0)
return -EINVAL;
mutex_lock(&mce_sysfs_mutex);
if (mca_cfg.ignore_ce ^ !!new) {
if (new) {
/* disable ce features */
@ -2098,6 +2104,8 @@ static ssize_t set_ignore_ce(struct device *s,
on_each_cpu(mce_enable_ce, (void *)1, 1);
}
}
mutex_unlock(&mce_sysfs_mutex);
return size;
}
@ -2110,6 +2118,7 @@ static ssize_t set_cmci_disabled(struct device *s,
if (kstrtou64(buf, 0, &new) < 0)
return -EINVAL;
mutex_lock(&mce_sysfs_mutex);
if (mca_cfg.cmci_disabled ^ !!new) {
if (new) {
/* disable cmci */
@ -2121,6 +2130,8 @@ static ssize_t set_cmci_disabled(struct device *s,
on_each_cpu(mce_enable_ce, NULL, 1);
}
}
mutex_unlock(&mce_sysfs_mutex);
return size;
}
@ -2128,8 +2139,19 @@ static ssize_t store_int_with_restart(struct device *s,
struct device_attribute *attr,
const char *buf, size_t size)
{
ssize_t ret = device_store_int(s, attr, buf, size);
unsigned long old_check_interval = check_interval;
ssize_t ret = device_store_ulong(s, attr, buf, size);
if (check_interval == old_check_interval)
return ret;
if (check_interval < 1)
check_interval = 1;
mutex_lock(&mce_sysfs_mutex);
mce_restart();
mutex_unlock(&mce_sysfs_mutex);
return ret;
}

View File

@ -339,7 +339,7 @@ int __init save_microcode_in_initrd_amd(unsigned int cpuid_1_eax)
return -EINVAL;
ret = load_microcode_amd(true, x86_family(cpuid_1_eax), desc.data, desc.size);
if (ret != UCODE_OK)
if (ret > UCODE_UPDATED)
return -EINVAL;
return 0;
@ -683,27 +683,35 @@ static enum ucode_state __load_microcode_amd(u8 family, const u8 *data,
static enum ucode_state
load_microcode_amd(bool save, u8 family, const u8 *data, size_t size)
{
struct ucode_patch *p;
enum ucode_state ret;
/* free old equiv table */
free_equiv_cpu_table();
ret = __load_microcode_amd(family, data, size);
if (ret != UCODE_OK)
if (ret != UCODE_OK) {
cleanup();
#ifdef CONFIG_X86_32
/* save BSP's matching patch for early load */
if (save) {
struct ucode_patch *p = find_patch(0);
if (p) {
memset(amd_ucode_patch, 0, PATCH_MAX_SIZE);
memcpy(amd_ucode_patch, p->data, min_t(u32, ksize(p->data),
PATCH_MAX_SIZE));
}
return ret;
}
#endif
p = find_patch(0);
if (!p) {
return ret;
} else {
if (boot_cpu_data.microcode == p->patch_id)
return ret;
ret = UCODE_NEW;
}
/* save BSP's matching patch for early load */
if (!save)
return ret;
memset(amd_ucode_patch, 0, PATCH_MAX_SIZE);
memcpy(amd_ucode_patch, p->data, min_t(u32, ksize(p->data), PATCH_MAX_SIZE));
return ret;
}

View File

@ -22,13 +22,16 @@
#define pr_fmt(fmt) "microcode: " fmt
#include <linux/platform_device.h>
#include <linux/stop_machine.h>
#include <linux/syscore_ops.h>
#include <linux/miscdevice.h>
#include <linux/capability.h>
#include <linux/firmware.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/cpu.h>
#include <linux/nmi.h>
#include <linux/fs.h>
#include <linux/mm.h>
@ -64,6 +67,11 @@ LIST_HEAD(microcode_cache);
*/
static DEFINE_MUTEX(microcode_mutex);
/*
* Serialize late loading so that CPUs get updated one-by-one.
*/
static DEFINE_SPINLOCK(update_lock);
struct ucode_cpu_info ucode_cpu_info[NR_CPUS];
struct cpu_info_ctx {
@ -373,26 +381,23 @@ static int collect_cpu_info(int cpu)
return ret;
}
struct apply_microcode_ctx {
enum ucode_state err;
};
static void apply_microcode_local(void *arg)
{
struct apply_microcode_ctx *ctx = arg;
enum ucode_state *err = arg;
ctx->err = microcode_ops->apply_microcode(smp_processor_id());
*err = microcode_ops->apply_microcode(smp_processor_id());
}
static int apply_microcode_on_target(int cpu)
{
struct apply_microcode_ctx ctx = { .err = 0 };
enum ucode_state err;
int ret;
ret = smp_call_function_single(cpu, apply_microcode_local, &ctx, 1);
if (!ret)
ret = ctx.err;
ret = smp_call_function_single(cpu, apply_microcode_local, &err, 1);
if (!ret) {
if (err == UCODE_ERROR)
ret = 1;
}
return ret;
}
@ -489,19 +494,114 @@ static void __exit microcode_dev_exit(void)
/* fake device for request_firmware */
static struct platform_device *microcode_pdev;
static enum ucode_state reload_for_cpu(int cpu)
/*
* Late loading dance. Why the heavy-handed stomp_machine effort?
*
* - HT siblings must be idle and not execute other code while the other sibling
* is loading microcode in order to avoid any negative interactions caused by
* the loading.
*
* - In addition, microcode update on the cores must be serialized until this
* requirement can be relaxed in the future. Right now, this is conservative
* and good.
*/
#define SPINUNIT 100 /* 100 nsec */
static int check_online_cpus(void)
{
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
enum ucode_state ustate;
if (num_online_cpus() == num_present_cpus())
return 0;
if (!uci->valid)
return UCODE_OK;
pr_err("Not all CPUs online, aborting microcode update.\n");
ustate = microcode_ops->request_microcode_fw(cpu, &microcode_pdev->dev, true);
if (ustate != UCODE_OK)
return ustate;
return -EINVAL;
}
return apply_microcode_on_target(cpu);
static atomic_t late_cpus_in;
static atomic_t late_cpus_out;
static int __wait_for_cpus(atomic_t *t, long long timeout)
{
int all_cpus = num_online_cpus();
atomic_inc(t);
while (atomic_read(t) < all_cpus) {
if (timeout < SPINUNIT) {
pr_err("Timeout while waiting for CPUs rendezvous, remaining: %d\n",
all_cpus - atomic_read(t));
return 1;
}
ndelay(SPINUNIT);
timeout -= SPINUNIT;
touch_nmi_watchdog();
}
return 0;
}
/*
* Returns:
* < 0 - on error
* 0 - no update done
* 1 - microcode was updated
*/
static int __reload_late(void *info)
{
int cpu = smp_processor_id();
enum ucode_state err;
int ret = 0;
/*
* Wait for all CPUs to arrive. A load will not be attempted unless all
* CPUs show up.
* */
if (__wait_for_cpus(&late_cpus_in, NSEC_PER_SEC))
return -1;
spin_lock(&update_lock);
apply_microcode_local(&err);
spin_unlock(&update_lock);
if (err > UCODE_NFOUND) {
pr_warn("Error reloading microcode on CPU %d\n", cpu);
return -1;
/* siblings return UCODE_OK because their engine got updated already */
} else if (err == UCODE_UPDATED || err == UCODE_OK) {
ret = 1;
} else {
return ret;
}
/*
* Increase the wait timeout to a safe value here since we're
* serializing the microcode update and that could take a while on a
* large number of CPUs. And that is fine as the *actual* timeout will
* be determined by the last CPU finished updating and thus cut short.
*/
if (__wait_for_cpus(&late_cpus_out, NSEC_PER_SEC * num_online_cpus()))
panic("Timeout during microcode update!\n");
return ret;
}
/*
* Reload microcode late on all CPUs. Wait for a sec until they
* all gather together.
*/
static int microcode_reload_late(void)
{
int ret;
atomic_set(&late_cpus_in, 0);
atomic_set(&late_cpus_out, 0);
ret = stop_machine_cpuslocked(__reload_late, NULL, cpu_online_mask);
if (ret > 0)
microcode_check();
return ret;
}
static ssize_t reload_store(struct device *dev,
@ -509,10 +609,9 @@ static ssize_t reload_store(struct device *dev,
const char *buf, size_t size)
{
enum ucode_state tmp_ret = UCODE_OK;
bool do_callback = false;
int bsp = boot_cpu_data.cpu_index;
unsigned long val;
ssize_t ret = 0;
int cpu;
ret = kstrtoul(buf, 0, &val);
if (ret)
@ -521,29 +620,24 @@ static ssize_t reload_store(struct device *dev,
if (val != 1)
return size;
tmp_ret = microcode_ops->request_microcode_fw(bsp, &microcode_pdev->dev, true);
if (tmp_ret != UCODE_NEW)
return size;
get_online_cpus();
ret = check_online_cpus();
if (ret)
goto put;
mutex_lock(&microcode_mutex);
for_each_online_cpu(cpu) {
tmp_ret = reload_for_cpu(cpu);
if (tmp_ret > UCODE_NFOUND) {
pr_warn("Error reloading microcode on CPU %d\n", cpu);
/* set retval for the first encountered reload error */
if (!ret)
ret = -EINVAL;
}
if (tmp_ret == UCODE_UPDATED)
do_callback = true;
}
if (!ret && do_callback)
microcode_check();
ret = microcode_reload_late();
mutex_unlock(&microcode_mutex);
put:
put_online_cpus();
if (!ret)
if (ret >= 0)
ret = size;
return ret;
@ -611,10 +705,8 @@ static enum ucode_state microcode_init_cpu(int cpu, bool refresh_fw)
if (system_state != SYSTEM_RUNNING)
return UCODE_NFOUND;
ustate = microcode_ops->request_microcode_fw(cpu, &microcode_pdev->dev,
refresh_fw);
if (ustate == UCODE_OK) {
ustate = microcode_ops->request_microcode_fw(cpu, &microcode_pdev->dev, refresh_fw);
if (ustate == UCODE_NEW) {
pr_debug("CPU%d updated upon init\n", cpu);
apply_microcode_on_target(cpu);
}

View File

@ -589,6 +589,23 @@ static int apply_microcode_early(struct ucode_cpu_info *uci, bool early)
if (!mc)
return 0;
/*
* Save us the MSR write below - which is a particular expensive
* operation - when the other hyperthread has updated the microcode
* already.
*/
rev = intel_get_microcode_revision();
if (rev >= mc->hdr.rev) {
uci->cpu_sig.rev = rev;
return UCODE_OK;
}
/*
* Writeback and invalidate caches before updating microcode to avoid
* internal issues depending on what the microcode is updating.
*/
native_wbinvd();
/* write microcode via MSR 0x79 */
native_wrmsrl(MSR_IA32_UCODE_WRITE, (unsigned long)mc->bits);
@ -774,9 +791,9 @@ static int collect_cpu_info(int cpu_num, struct cpu_signature *csig)
static enum ucode_state apply_microcode_intel(int cpu)
{
struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
struct cpuinfo_x86 *c = &cpu_data(cpu);
struct microcode_intel *mc;
struct ucode_cpu_info *uci;
struct cpuinfo_x86 *c;
static int prev_rev;
u32 rev;
@ -784,15 +801,32 @@ static enum ucode_state apply_microcode_intel(int cpu)
if (WARN_ON(raw_smp_processor_id() != cpu))
return UCODE_ERROR;
uci = ucode_cpu_info + cpu;
mc = uci->mc;
/* Look for a newer patch in our cache: */
mc = find_patch(uci);
if (!mc) {
/* Look for a newer patch in our cache: */
mc = find_patch(uci);
mc = uci->mc;
if (!mc)
return UCODE_NFOUND;
}
/*
* Save us the MSR write below - which is a particular expensive
* operation - when the other hyperthread has updated the microcode
* already.
*/
rev = intel_get_microcode_revision();
if (rev >= mc->hdr.rev) {
uci->cpu_sig.rev = rev;
c->microcode = rev;
return UCODE_OK;
}
/*
* Writeback and invalidate caches before updating microcode to avoid
* internal issues depending on what the microcode is updating.
*/
native_wbinvd();
/* write microcode via MSR 0x79 */
wrmsrl(MSR_IA32_UCODE_WRITE, (unsigned long)mc->bits);
@ -813,8 +847,6 @@ static enum ucode_state apply_microcode_intel(int cpu)
prev_rev = rev;
}
c = &cpu_data(cpu);
uci->cpu_sig.rev = rev;
c->microcode = rev;
@ -830,6 +862,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
unsigned int leftover = size;
unsigned int curr_mc_size = 0, new_mc_size = 0;
unsigned int csig, cpf;
enum ucode_state ret = UCODE_OK;
while (leftover) {
struct microcode_header_intel mc_header;
@ -871,6 +904,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
new_mc = mc;
new_mc_size = mc_size;
mc = NULL; /* trigger new vmalloc */
ret = UCODE_NEW;
}
ucode_ptr += mc_size;
@ -900,7 +934,7 @@ static enum ucode_state generic_load_microcode(int cpu, void *data, size_t size,
pr_debug("CPU%d found a matching microcode update with version 0x%x (current=0x%x)\n",
cpu, new_rev, uci->cpu_sig.rev);
return UCODE_OK;
return ret;
}
static int get_ucode_fw(void *to, const void *from, size_t n)

View File

@ -23,7 +23,7 @@
/*
* this changes the io permissions bitmap in the current task.
*/
asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int turn_on)
SYSCALL_DEFINE3(ioperm, unsigned long, from, unsigned long, num, int, turn_on)
{
struct thread_struct *t = &current->thread;
struct tss_struct *tss;

View File

@ -1168,10 +1168,18 @@ NOKPROBE_SYMBOL(longjmp_break_handler);
bool arch_within_kprobe_blacklist(unsigned long addr)
{
bool is_in_entry_trampoline_section = false;
#ifdef CONFIG_X86_64
is_in_entry_trampoline_section =
(addr >= (unsigned long)__entry_trampoline_start &&
addr < (unsigned long)__entry_trampoline_end);
#endif
return (addr >= (unsigned long)__kprobes_text_start &&
addr < (unsigned long)__kprobes_text_end) ||
(addr >= (unsigned long)__entry_text_start &&
addr < (unsigned long)__entry_text_end);
addr < (unsigned long)__entry_text_end) ||
is_in_entry_trampoline_section;
}
int __init arch_init_kprobes(void)

View File

@ -43,6 +43,13 @@ static inline void signal_compat_build_tests(void)
BUILD_BUG_ON(offsetof(compat_siginfo_t, _sifields) != 3 * sizeof(int));
#define CHECK_CSI_OFFSET(name) BUILD_BUG_ON(_sifields_offset != offsetof(compat_siginfo_t, _sifields.name))
BUILD_BUG_ON(offsetof(siginfo_t, si_signo) != 0);
BUILD_BUG_ON(offsetof(siginfo_t, si_errno) != 4);
BUILD_BUG_ON(offsetof(siginfo_t, si_code) != 8);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_signo) != 0);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_errno) != 4);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_code) != 8);
/*
* Ensure that the size of each si_field never changes.
* If it does, it is a sign that the
@ -63,36 +70,94 @@ static inline void signal_compat_build_tests(void)
CHECK_CSI_SIZE (_kill, 2*sizeof(int));
CHECK_SI_SIZE (_kill, 2*sizeof(int));
BUILD_BUG_ON(offsetof(siginfo_t, si_pid) != 0x10);
BUILD_BUG_ON(offsetof(siginfo_t, si_uid) != 0x14);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pid) != 0xC);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_uid) != 0x10);
CHECK_CSI_OFFSET(_timer);
CHECK_CSI_SIZE (_timer, 3*sizeof(int));
CHECK_SI_SIZE (_timer, 6*sizeof(int));
BUILD_BUG_ON(offsetof(siginfo_t, si_tid) != 0x10);
BUILD_BUG_ON(offsetof(siginfo_t, si_overrun) != 0x14);
BUILD_BUG_ON(offsetof(siginfo_t, si_value) != 0x18);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_tid) != 0x0C);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_overrun) != 0x10);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_value) != 0x14);
CHECK_CSI_OFFSET(_rt);
CHECK_CSI_SIZE (_rt, 3*sizeof(int));
CHECK_SI_SIZE (_rt, 4*sizeof(int));
BUILD_BUG_ON(offsetof(siginfo_t, si_pid) != 0x10);
BUILD_BUG_ON(offsetof(siginfo_t, si_uid) != 0x14);
BUILD_BUG_ON(offsetof(siginfo_t, si_value) != 0x18);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pid) != 0x0C);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_uid) != 0x10);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_value) != 0x14);
CHECK_CSI_OFFSET(_sigchld);
CHECK_CSI_SIZE (_sigchld, 5*sizeof(int));
CHECK_SI_SIZE (_sigchld, 8*sizeof(int));
BUILD_BUG_ON(offsetof(siginfo_t, si_pid) != 0x10);
BUILD_BUG_ON(offsetof(siginfo_t, si_uid) != 0x14);
BUILD_BUG_ON(offsetof(siginfo_t, si_status) != 0x18);
BUILD_BUG_ON(offsetof(siginfo_t, si_utime) != 0x20);
BUILD_BUG_ON(offsetof(siginfo_t, si_stime) != 0x28);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pid) != 0x0C);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_uid) != 0x10);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_status) != 0x14);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_utime) != 0x18);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_stime) != 0x1C);
#ifdef CONFIG_X86_X32_ABI
CHECK_CSI_OFFSET(_sigchld_x32);
CHECK_CSI_SIZE (_sigchld_x32, 7*sizeof(int));
/* no _sigchld_x32 in the generic siginfo_t */
BUILD_BUG_ON(offsetof(compat_siginfo_t, _sifields._sigchld_x32._utime) != 0x18);
BUILD_BUG_ON(offsetof(compat_siginfo_t, _sifields._sigchld_x32._stime) != 0x20);
#endif
CHECK_CSI_OFFSET(_sigfault);
CHECK_CSI_SIZE (_sigfault, 4*sizeof(int));
CHECK_SI_SIZE (_sigfault, 8*sizeof(int));
BUILD_BUG_ON(offsetof(siginfo_t, si_addr) != 0x10);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_addr) != 0x0C);
BUILD_BUG_ON(offsetof(siginfo_t, si_addr_lsb) != 0x18);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_addr_lsb) != 0x10);
BUILD_BUG_ON(offsetof(siginfo_t, si_lower) != 0x20);
BUILD_BUG_ON(offsetof(siginfo_t, si_upper) != 0x28);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_lower) != 0x14);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_upper) != 0x18);
BUILD_BUG_ON(offsetof(siginfo_t, si_pkey) != 0x20);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_pkey) != 0x14);
CHECK_CSI_OFFSET(_sigpoll);
CHECK_CSI_SIZE (_sigpoll, 2*sizeof(int));
CHECK_SI_SIZE (_sigpoll, 4*sizeof(int));
BUILD_BUG_ON(offsetof(siginfo_t, si_band) != 0x10);
BUILD_BUG_ON(offsetof(siginfo_t, si_fd) != 0x18);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_band) != 0x0C);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_fd) != 0x10);
CHECK_CSI_OFFSET(_sigsys);
CHECK_CSI_SIZE (_sigsys, 3*sizeof(int));
CHECK_SI_SIZE (_sigsys, 4*sizeof(int));
BUILD_BUG_ON(offsetof(siginfo_t, si_call_addr) != 0x10);
BUILD_BUG_ON(offsetof(siginfo_t, si_syscall) != 0x18);
BUILD_BUG_ON(offsetof(siginfo_t, si_arch) != 0x1C);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_call_addr) != 0x0C);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_syscall) != 0x10);
BUILD_BUG_ON(offsetof(compat_siginfo_t, si_arch) != 0x14);
/* any new si_fields should be added here */
}

View File

@ -727,7 +727,8 @@ void handle_vm86_fault(struct kernel_vm86_regs *regs, long error_code)
return;
check_vip:
if (VEFLAGS & X86_EFLAGS_VIP) {
if ((VEFLAGS & (X86_EFLAGS_VIP | X86_EFLAGS_VIF)) ==
(X86_EFLAGS_VIP | X86_EFLAGS_VIF)) {
save_v86_state(regs, VM86_STI);
return;
}

View File

@ -118,9 +118,11 @@ SECTIONS
#ifdef CONFIG_X86_64
. = ALIGN(PAGE_SIZE);
VMLINUX_SYMBOL(__entry_trampoline_start) = .;
_entry_trampoline = .;
*(.entry_trampoline)
. = ALIGN(PAGE_SIZE);
VMLINUX_SYMBOL(__entry_trampoline_end) = .;
ASSERT(. - _entry_trampoline == PAGE_SIZE, "entry trampoline is too big");
#endif

View File

@ -2770,8 +2770,10 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
else
pte_access &= ~ACC_WRITE_MASK;
if (!kvm_is_mmio_pfn(pfn))
spte |= shadow_me_mask;
spte |= (u64)pfn << PAGE_SHIFT;
spte |= shadow_me_mask;
if (pte_access & ACC_WRITE_MASK) {

View File

@ -330,7 +330,7 @@ static noinline int vmalloc_fault(unsigned long address)
if (!pmd_k)
return -1;
if (pmd_huge(*pmd_k))
if (pmd_large(*pmd_k))
return 0;
pte_k = pte_offset_kernel(pmd_k, address);
@ -475,7 +475,7 @@ static noinline int vmalloc_fault(unsigned long address)
if (pud_none(*pud) || pud_pfn(*pud) != pud_pfn(*pud_ref))
BUG();
if (pud_huge(*pud))
if (pud_large(*pud))
return 0;
pmd = pmd_offset(pud, address);
@ -486,7 +486,7 @@ static noinline int vmalloc_fault(unsigned long address)
if (pmd_none(*pmd) || pmd_pfn(*pmd) != pmd_pfn(*pmd_ref))
BUG();
if (pmd_huge(*pmd))
if (pmd_large(*pmd))
return 0;
pte_ref = pte_offset_kernel(pmd_ref, address);

View File

@ -332,7 +332,7 @@ static void __init pti_clone_user_shared(void)
}
/*
* Clone the ESPFIX P4D into the user space visinble page table
* Clone the ESPFIX P4D into the user space visible page table
*/
static void __init pti_setup_espfix64(void)
{

View File

@ -97,7 +97,7 @@ static struct img_ascii_lcd_config boston_config = {
static void malta_update(struct img_ascii_lcd_ctx *ctx)
{
unsigned int i;
int err;
int err = 0;
for (i = 0; i < ctx->cfg->num_chars; i++) {
err = regmap_write(ctx->regmap,
@ -180,7 +180,7 @@ static int sead3_wait_lcd_idle(struct img_ascii_lcd_ctx *ctx)
static void sead3_update(struct img_ascii_lcd_ctx *ctx)
{
unsigned int i;
int err;
int err = 0;
for (i = 0; i < ctx->cfg->num_chars; i++) {
err = sead3_wait_lcd_idle(ctx);
@ -224,7 +224,7 @@ MODULE_DEVICE_TABLE(of, img_ascii_lcd_matches);
/**
* img_ascii_lcd_scroll() - scroll the display by a character
* @arg: really a pointer to the private data structure
* @t: really a pointer to the private data structure
*
* Scroll the current message along the LCD by one character, rearming the
* timer if required.

View File

@ -1372,7 +1372,7 @@ static void panel_process_inputs(void)
break;
input->rise_timer = 0;
input->state = INPUT_ST_RISING;
/* no break here, fall through */
/* fall through */
case INPUT_ST_RISING:
if ((phys_curr & input->mask) != input->value) {
input->state = INPUT_ST_LOW;
@ -1385,11 +1385,11 @@ static void panel_process_inputs(void)
}
input->high_timer = 0;
input->state = INPUT_ST_HIGH;
/* no break here, fall through */
/* fall through */
case INPUT_ST_HIGH:
if (input_state_high(input))
break;
/* no break here, fall through */
/* fall through */
case INPUT_ST_FALLING:
input_state_falling(input);
}

View File

@ -266,7 +266,7 @@ static int lo_write_bvec(struct file *file, struct bio_vec *bvec, loff_t *ppos)
struct iov_iter i;
ssize_t bw;
iov_iter_bvec(&i, ITER_BVEC, bvec, 1, bvec->bv_len);
iov_iter_bvec(&i, ITER_BVEC | WRITE, bvec, 1, bvec->bv_len);
file_start_write(file);
bw = vfs_iter_write(file, &i, ppos, 0);

View File

@ -262,6 +262,7 @@ static DEFINE_SPINLOCK(minor_lock);
static int blkfront_setup_indirect(struct blkfront_ring_info *rinfo);
static void blkfront_gather_backend_features(struct blkfront_info *info);
static int negotiate_mq(struct blkfront_info *info);
static int get_id_from_freelist(struct blkfront_ring_info *rinfo)
{
@ -1774,11 +1775,18 @@ static int talk_to_blkback(struct xenbus_device *dev,
unsigned int i, max_page_order;
unsigned int ring_page_order;
if (!info)
return -ENODEV;
max_page_order = xenbus_read_unsigned(info->xbdev->otherend,
"max-ring-page-order", 0);
ring_page_order = min(xen_blkif_max_ring_order, max_page_order);
info->nr_ring_pages = 1 << ring_page_order;
err = negotiate_mq(info);
if (err)
goto destroy_blkring;
for (i = 0; i < info->nr_rings; i++) {
struct blkfront_ring_info *rinfo = &info->rinfo[i];
@ -1978,11 +1986,6 @@ static int blkfront_probe(struct xenbus_device *dev,
}
info->xbdev = dev;
err = negotiate_mq(info);
if (err) {
kfree(info);
return err;
}
mutex_init(&info->mutex);
info->vdevice = vdevice;
@ -2099,10 +2102,6 @@ static int blkfront_resume(struct xenbus_device *dev)
blkif_free(info, info->connected == BLKIF_STATE_CONNECTED);
err = negotiate_mq(info);
if (err)
return err;
err = talk_to_blkback(dev, info);
if (!err)
blk_mq_update_nr_hw_queues(&info->tag_set, info->nr_rings);

View File

@ -21,6 +21,7 @@
*
*/
#include <linux/dmi.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/quirks.h>
@ -379,6 +380,21 @@ static const struct usb_device_id blacklist_table[] = {
{ } /* Terminating entry */
};
/* The Bluetooth USB module build into some devices needs to be reset on resume,
* this is a problem with the platform (likely shutting off all power) not with
* the module itself. So we use a DMI list to match known broken platforms.
*/
static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
{
/* Lenovo Yoga 920 (QCA Rome device 0cf3:e300) */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo YOGA 920"),
},
},
{}
};
#define BTUSB_MAX_ISOC_FRAMES 10
#define BTUSB_INTR_RUNNING 0
@ -2945,6 +2961,9 @@ static int btusb_probe(struct usb_interface *intf,
hdev->send = btusb_send_frame;
hdev->notify = btusb_notify;
if (dmi_check_system(btusb_needs_reset_resume_table))
interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
#ifdef CONFIG_PM
err = btusb_config_oob_wake(hdev);
if (err)
@ -3031,12 +3050,6 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info & BTUSB_QCA_ROME) {
data->setup_on_usb = btusb_setup_qca;
hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
/* QCA Rome devices lose their updated firmware over suspend,
* but the USB hub doesn't notice any status change.
* explicitly request a device reset on resume.
*/
interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
}
#ifdef CONFIG_BT_HCIBTUSB_RTL

View File

@ -922,12 +922,13 @@ static int bcm_get_resources(struct bcm_device *dev)
dev->clk = devm_clk_get(dev->dev, NULL);
dev->device_wakeup = devm_gpiod_get(dev->dev, "device-wakeup",
GPIOD_OUT_LOW);
dev->device_wakeup = devm_gpiod_get_optional(dev->dev, "device-wakeup",
GPIOD_OUT_LOW);
if (IS_ERR(dev->device_wakeup))
return PTR_ERR(dev->device_wakeup);
dev->shutdown = devm_gpiod_get(dev->dev, "shutdown", GPIOD_OUT_LOW);
dev->shutdown = devm_gpiod_get_optional(dev->dev, "shutdown",
GPIOD_OUT_LOW);
if (IS_ERR(dev->shutdown))
return PTR_ERR(dev->shutdown);

View File

@ -386,6 +386,7 @@ config ATMEL_PIT
config ATMEL_ST
bool "Atmel ST timer support" if COMPILE_TEST
depends on HAS_IOMEM
select TIMER_OF
select MFD_SYSCON
help

View File

@ -163,6 +163,7 @@ struct mv_xor_v2_device {
void __iomem *dma_base;
void __iomem *glob_base;
struct clk *clk;
struct clk *reg_clk;
struct tasklet_struct irq_tasklet;
struct list_head free_sw_desc;
struct dma_device dmadev;
@ -749,13 +750,26 @@ static int mv_xor_v2_probe(struct platform_device *pdev)
if (ret)
return ret;
xor_dev->reg_clk = devm_clk_get(&pdev->dev, "reg");
if (PTR_ERR(xor_dev->reg_clk) != -ENOENT) {
if (!IS_ERR(xor_dev->reg_clk)) {
ret = clk_prepare_enable(xor_dev->reg_clk);
if (ret)
return ret;
} else {
return PTR_ERR(xor_dev->reg_clk);
}
}
xor_dev->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(xor_dev->clk) && PTR_ERR(xor_dev->clk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (IS_ERR(xor_dev->clk) && PTR_ERR(xor_dev->clk) == -EPROBE_DEFER) {
ret = EPROBE_DEFER;
goto disable_reg_clk;
}
if (!IS_ERR(xor_dev->clk)) {
ret = clk_prepare_enable(xor_dev->clk);
if (ret)
return ret;
goto disable_reg_clk;
}
ret = platform_msi_domain_alloc_irqs(&pdev->dev, 1,
@ -866,8 +880,9 @@ free_hw_desq:
free_msi_irqs:
platform_msi_domain_free_irqs(&pdev->dev);
disable_clk:
if (!IS_ERR(xor_dev->clk))
clk_disable_unprepare(xor_dev->clk);
clk_disable_unprepare(xor_dev->clk);
disable_reg_clk:
clk_disable_unprepare(xor_dev->reg_clk);
return ret;
}

View File

@ -917,7 +917,7 @@ rcar_dmac_chan_prep_sg(struct rcar_dmac_chan *chan, struct scatterlist *sgl,
rcar_dmac_chan_configure_desc(chan, desc);
max_chunk_size = (RCAR_DMATCR_MASK + 1) << desc->xfer_shift;
max_chunk_size = RCAR_DMATCR_MASK << desc->xfer_shift;
/*
* Allocate and fill the transfer chunk descriptors. We own the only

View File

@ -639,7 +639,7 @@ static void __exit dcdbas_exit(void)
platform_driver_unregister(&dcdbas_driver);
}
module_init(dcdbas_init);
subsys_initcall_sync(dcdbas_init);
module_exit(dcdbas_exit);
MODULE_DESCRIPTION(DRIVER_DESCRIPTION " (version " DRIVER_VERSION ")");

View File

@ -68,11 +68,11 @@ void efi_retrieve_tpm2_eventlog_1_2(efi_system_table_t *sys_table_arg)
efi_guid_t linux_eventlog_guid = LINUX_EFI_TPM_EVENT_LOG_GUID;
efi_status_t status;
efi_physical_addr_t log_location, log_last_entry;
struct linux_efi_tpm_eventlog *log_tbl;
struct linux_efi_tpm_eventlog *log_tbl = NULL;
unsigned long first_entry_addr, last_entry_addr;
size_t log_size, last_entry_size;
efi_bool_t truncated;
void *tcg2_protocol;
void *tcg2_protocol = NULL;
status = efi_call_early(locate_protocol, &tcg2_guid, NULL,
&tcg2_protocol);

View File

@ -14,7 +14,6 @@
* GNU General Public License for more details.
*/
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/init.h>
@ -37,10 +36,9 @@ struct gpio_rcar_priv {
struct platform_device *pdev;
struct gpio_chip gpio_chip;
struct irq_chip irq_chip;
struct clk *clk;
unsigned int irq_parent;
atomic_t wakeup_path;
bool has_both_edge_trigger;
bool needs_clk;
};
#define IOINTSEL 0x00 /* General IO/Interrupt Switching Register */
@ -186,13 +184,10 @@ static int gpio_rcar_irq_set_wake(struct irq_data *d, unsigned int on)
}
}
if (!p->clk)
return 0;
if (on)
clk_enable(p->clk);
atomic_inc(&p->wakeup_path);
else
clk_disable(p->clk);
atomic_dec(&p->wakeup_path);
return 0;
}
@ -330,17 +325,14 @@ static int gpio_rcar_direction_output(struct gpio_chip *chip, unsigned offset,
struct gpio_rcar_info {
bool has_both_edge_trigger;
bool needs_clk;
};
static const struct gpio_rcar_info gpio_rcar_info_gen1 = {
.has_both_edge_trigger = false,
.needs_clk = false,
};
static const struct gpio_rcar_info gpio_rcar_info_gen2 = {
.has_both_edge_trigger = true,
.needs_clk = true,
};
static const struct of_device_id gpio_rcar_of_table[] = {
@ -403,7 +395,6 @@ static int gpio_rcar_parse_dt(struct gpio_rcar_priv *p, unsigned int *npins)
ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &args);
*npins = ret == 0 ? args.args[2] : RCAR_MAX_GPIO_PER_BANK;
p->has_both_edge_trigger = info->has_both_edge_trigger;
p->needs_clk = info->needs_clk;
if (*npins == 0 || *npins > RCAR_MAX_GPIO_PER_BANK) {
dev_warn(&p->pdev->dev,
@ -440,16 +431,6 @@ static int gpio_rcar_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, p);
p->clk = devm_clk_get(dev, NULL);
if (IS_ERR(p->clk)) {
if (p->needs_clk) {
dev_err(dev, "unable to get clock\n");
ret = PTR_ERR(p->clk);
goto err0;
}
p->clk = NULL;
}
pm_runtime_enable(dev);
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@ -531,11 +512,24 @@ static int gpio_rcar_remove(struct platform_device *pdev)
return 0;
}
static int __maybe_unused gpio_rcar_suspend(struct device *dev)
{
struct gpio_rcar_priv *p = dev_get_drvdata(dev);
if (atomic_read(&p->wakeup_path))
device_set_wakeup_path(dev);
return 0;
}
static SIMPLE_DEV_PM_OPS(gpio_rcar_pm_ops, gpio_rcar_suspend, NULL);
static struct platform_driver gpio_rcar_device_driver = {
.probe = gpio_rcar_probe,
.remove = gpio_rcar_remove,
.driver = {
.name = "gpio_rcar",
.pm = &gpio_rcar_pm_ops,
.of_match_table = of_match_ptr(gpio_rcar_of_table),
}
};

View File

@ -540,6 +540,9 @@ int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev,
size_t size;
u32 retry = 3;
if (amdgpu_acpi_pcie_notify_device_ready(adev))
return -EINVAL;
/* Get the device handle */
handle = ACPI_HANDLE(&adev->pdev->dev);
if (!handle)

View File

@ -69,25 +69,18 @@ void amdgpu_connector_hotplug(struct drm_connector *connector)
/* don't do anything if sink is not display port, i.e.,
* passive dp->(dvi|hdmi) adaptor
*/
if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
int saved_dpms = connector->dpms;
/* Only turn off the display if it's physically disconnected */
if (!amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) {
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
} else if (amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) {
/* Don't try to start link training before we
* have the dpcd */
if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
return;
if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT &&
amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd) &&
amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) {
/* Don't start link training before we have the DPCD */
if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
return;
/* set it to OFF so that drm_helper_connector_dpms()
* won't return immediately since the current state
* is ON at this point.
*/
connector->dpms = DRM_MODE_DPMS_OFF;
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
}
connector->dpms = saved_dpms;
/* Turn the connector off and back on immediately, which
* will trigger link training
*/
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
}
}
}

View File

@ -36,8 +36,6 @@ void amdgpu_gem_object_free(struct drm_gem_object *gobj)
struct amdgpu_bo *robj = gem_to_amdgpu_bo(gobj);
if (robj) {
if (robj->gem_base.import_attach)
drm_prime_gem_destroy(&robj->gem_base, robj->tbo.sg);
amdgpu_mn_unregister(robj);
amdgpu_bo_unref(&robj);
}

View File

@ -352,6 +352,7 @@ struct amdgpu_mode_info {
u16 firmware_flags;
/* pointer to backlight encoder */
struct amdgpu_encoder *bl_encoder;
u8 bl_level; /* saved backlight level */
struct amdgpu_audio audio; /* audio stuff */
int num_crtc; /* number of crtcs */
int num_hpd; /* number of hpd pins */

View File

@ -56,6 +56,8 @@ static void amdgpu_ttm_bo_destroy(struct ttm_buffer_object *tbo)
amdgpu_bo_kunmap(bo);
if (bo->gem_base.import_attach)
drm_prime_gem_destroy(&bo->gem_base, bo->tbo.sg);
drm_gem_object_release(&bo->gem_base);
amdgpu_bo_unref(&bo->parent);
if (!list_empty(&bo->shadow_list)) {

View File

@ -481,7 +481,7 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, char __user *buf,
result = 0;
if (*pos < 12) {
early[0] = amdgpu_ring_get_rptr(ring);
early[0] = amdgpu_ring_get_rptr(ring) & ring->buf_mask;
early[1] = amdgpu_ring_get_wptr(ring) & ring->buf_mask;
early[2] = ring->wptr & ring->buf_mask;
for (i = *pos / 4; i < 3 && size; i++) {

View File

@ -299,12 +299,15 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
cancel_delayed_work_sync(&adev->uvd.idle_work);
for (i = 0; i < adev->uvd.max_handles; ++i)
if (atomic_read(&adev->uvd.handles[i]))
break;
/* only valid for physical mode */
if (adev->asic_type < CHIP_POLARIS10) {
for (i = 0; i < adev->uvd.max_handles; ++i)
if (atomic_read(&adev->uvd.handles[i]))
break;
if (i == AMDGPU_MAX_UVD_HANDLES)
return 0;
if (i == adev->uvd.max_handles)
return 0;
}
size = amdgpu_bo_size(adev->uvd.vcpu_bo);
ptr = adev->uvd.cpu_addr;

View File

@ -34,7 +34,7 @@
#include <linux/backlight.h>
#include "bif/bif_4_1_d.h"
static u8
u8
amdgpu_atombios_encoder_get_backlight_level_from_reg(struct amdgpu_device *adev)
{
u8 backlight_level;
@ -48,7 +48,7 @@ amdgpu_atombios_encoder_get_backlight_level_from_reg(struct amdgpu_device *adev)
return backlight_level;
}
static void
void
amdgpu_atombios_encoder_set_backlight_level_to_reg(struct amdgpu_device *adev,
u8 backlight_level)
{

View File

@ -24,6 +24,11 @@
#ifndef __ATOMBIOS_ENCODER_H__
#define __ATOMBIOS_ENCODER_H__
u8
amdgpu_atombios_encoder_get_backlight_level_from_reg(struct amdgpu_device *adev);
void
amdgpu_atombios_encoder_set_backlight_level_to_reg(struct amdgpu_device *adev,
u8 backlight_level);
u8
amdgpu_atombios_encoder_get_backlight_level(struct amdgpu_encoder *amdgpu_encoder);
void

View File

@ -2921,6 +2921,11 @@ static int dce_v10_0_hw_fini(void *handle)
static int dce_v10_0_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->mode_info.bl_level =
amdgpu_atombios_encoder_get_backlight_level_from_reg(adev);
return dce_v10_0_hw_fini(handle);
}
@ -2929,6 +2934,9 @@ static int dce_v10_0_resume(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
amdgpu_atombios_encoder_set_backlight_level_to_reg(adev,
adev->mode_info.bl_level);
ret = dce_v10_0_hw_init(handle);
/* turn on the BL */

View File

@ -3047,6 +3047,11 @@ static int dce_v11_0_hw_fini(void *handle)
static int dce_v11_0_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->mode_info.bl_level =
amdgpu_atombios_encoder_get_backlight_level_from_reg(adev);
return dce_v11_0_hw_fini(handle);
}
@ -3055,6 +3060,9 @@ static int dce_v11_0_resume(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
amdgpu_atombios_encoder_set_backlight_level_to_reg(adev,
adev->mode_info.bl_level);
ret = dce_v11_0_hw_init(handle);
/* turn on the BL */

View File

@ -2787,6 +2787,11 @@ static int dce_v6_0_hw_fini(void *handle)
static int dce_v6_0_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->mode_info.bl_level =
amdgpu_atombios_encoder_get_backlight_level_from_reg(adev);
return dce_v6_0_hw_fini(handle);
}
@ -2795,6 +2800,9 @@ static int dce_v6_0_resume(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
amdgpu_atombios_encoder_set_backlight_level_to_reg(adev,
adev->mode_info.bl_level);
ret = dce_v6_0_hw_init(handle);
/* turn on the BL */
@ -3093,7 +3101,7 @@ static int dce_v6_0_hpd_irq(struct amdgpu_device *adev,
tmp |= DC_HPD1_INT_CONTROL__DC_HPD1_INT_ACK_MASK;
WREG32(mmDC_HPD1_INT_CONTROL + hpd_offsets[hpd], tmp);
schedule_work(&adev->hotplug_work);
DRM_INFO("IH: HPD%d\n", hpd + 1);
DRM_DEBUG("IH: HPD%d\n", hpd + 1);
}
return 0;

View File

@ -2819,6 +2819,11 @@ static int dce_v8_0_hw_fini(void *handle)
static int dce_v8_0_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
adev->mode_info.bl_level =
amdgpu_atombios_encoder_get_backlight_level_from_reg(adev);
return dce_v8_0_hw_fini(handle);
}
@ -2827,6 +2832,9 @@ static int dce_v8_0_resume(void *handle)
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int ret;
amdgpu_atombios_encoder_set_backlight_level_to_reg(adev,
adev->mode_info.bl_level);
ret = dce_v8_0_hw_init(handle);
/* turn on the BL */

View File

@ -4384,34 +4384,8 @@ static void gfx_v7_0_gpu_early_init(struct amdgpu_device *adev)
case CHIP_KAVERI:
adev->gfx.config.max_shader_engines = 1;
adev->gfx.config.max_tile_pipes = 4;
if ((adev->pdev->device == 0x1304) ||
(adev->pdev->device == 0x1305) ||
(adev->pdev->device == 0x130C) ||
(adev->pdev->device == 0x130F) ||
(adev->pdev->device == 0x1310) ||
(adev->pdev->device == 0x1311) ||
(adev->pdev->device == 0x131C)) {
adev->gfx.config.max_cu_per_sh = 8;
adev->gfx.config.max_backends_per_se = 2;
} else if ((adev->pdev->device == 0x1309) ||
(adev->pdev->device == 0x130A) ||
(adev->pdev->device == 0x130D) ||
(adev->pdev->device == 0x1313) ||
(adev->pdev->device == 0x131D)) {
adev->gfx.config.max_cu_per_sh = 6;
adev->gfx.config.max_backends_per_se = 2;
} else if ((adev->pdev->device == 0x1306) ||
(adev->pdev->device == 0x1307) ||
(adev->pdev->device == 0x130B) ||
(adev->pdev->device == 0x130E) ||
(adev->pdev->device == 0x1315) ||
(adev->pdev->device == 0x131B)) {
adev->gfx.config.max_cu_per_sh = 4;
adev->gfx.config.max_backends_per_se = 1;
} else {
adev->gfx.config.max_cu_per_sh = 3;
adev->gfx.config.max_backends_per_se = 1;
}
adev->gfx.config.max_cu_per_sh = 8;
adev->gfx.config.max_backends_per_se = 2;
adev->gfx.config.max_sh_per_se = 1;
adev->gfx.config.max_texture_channel_caches = 4;
adev->gfx.config.max_gprs = 256;

View File

@ -31,6 +31,7 @@
#include "amdgpu_uvd.h"
#include "amdgpu_vce.h"
#include "atom.h"
#include "amd_pcie.h"
#include "amdgpu_powerplay.h"
#include "sid.h"
#include "si_ih.h"
@ -1461,8 +1462,8 @@ static void si_pcie_gen3_enable(struct amdgpu_device *adev)
{
struct pci_dev *root = adev->pdev->bus->self;
int bridge_pos, gpu_pos;
u32 speed_cntl, mask, current_data_rate;
int ret, i;
u32 speed_cntl, current_data_rate;
int i;
u16 tmp16;
if (pci_is_root_bus(adev->pdev->bus))
@ -1474,23 +1475,20 @@ static void si_pcie_gen3_enable(struct amdgpu_device *adev)
if (adev->flags & AMD_IS_APU)
return;
ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
if (ret != 0)
return;
if (!(mask & (DRM_PCIE_SPEED_50 | DRM_PCIE_SPEED_80)))
if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)))
return;
speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
current_data_rate = (speed_cntl & LC_CURRENT_DATA_RATE_MASK) >>
LC_CURRENT_DATA_RATE_SHIFT;
if (mask & DRM_PCIE_SPEED_80) {
if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3) {
if (current_data_rate == 2) {
DRM_INFO("PCIE gen 3 link speeds already enabled\n");
return;
}
DRM_INFO("enabling PCIE gen 3 link speeds, disable with amdgpu.pcie_gen2=0\n");
} else if (mask & DRM_PCIE_SPEED_50) {
} else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2) {
if (current_data_rate == 1) {
DRM_INFO("PCIE gen 2 link speeds already enabled\n");
return;
@ -1506,7 +1504,7 @@ static void si_pcie_gen3_enable(struct amdgpu_device *adev)
if (!gpu_pos)
return;
if (mask & DRM_PCIE_SPEED_80) {
if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3) {
if (current_data_rate != 2) {
u16 bridge_cfg, gpu_cfg;
u16 bridge_cfg2, gpu_cfg2;
@ -1589,9 +1587,9 @@ static void si_pcie_gen3_enable(struct amdgpu_device *adev)
pci_read_config_word(adev->pdev, gpu_pos + PCI_EXP_LNKCTL2, &tmp16);
tmp16 &= ~0xf;
if (mask & DRM_PCIE_SPEED_80)
if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)
tmp16 |= 3;
else if (mask & DRM_PCIE_SPEED_50)
else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2)
tmp16 |= 2;
else
tmp16 |= 1;

View File

@ -26,6 +26,7 @@
#include "amdgpu_pm.h"
#include "amdgpu_dpm.h"
#include "amdgpu_atombios.h"
#include "amd_pcie.h"
#include "sid.h"
#include "r600_dpm.h"
#include "si_dpm.h"
@ -3331,29 +3332,6 @@ static void btc_apply_voltage_delta_rules(struct amdgpu_device *adev,
}
}
static enum amdgpu_pcie_gen r600_get_pcie_gen_support(struct amdgpu_device *adev,
u32 sys_mask,
enum amdgpu_pcie_gen asic_gen,
enum amdgpu_pcie_gen default_gen)
{
switch (asic_gen) {
case AMDGPU_PCIE_GEN1:
return AMDGPU_PCIE_GEN1;
case AMDGPU_PCIE_GEN2:
return AMDGPU_PCIE_GEN2;
case AMDGPU_PCIE_GEN3:
return AMDGPU_PCIE_GEN3;
default:
if ((sys_mask & DRM_PCIE_SPEED_80) && (default_gen == AMDGPU_PCIE_GEN3))
return AMDGPU_PCIE_GEN3;
else if ((sys_mask & DRM_PCIE_SPEED_50) && (default_gen == AMDGPU_PCIE_GEN2))
return AMDGPU_PCIE_GEN2;
else
return AMDGPU_PCIE_GEN1;
}
return AMDGPU_PCIE_GEN1;
}
static void r600_calculate_u_and_p(u32 i, u32 r_c, u32 p_b,
u32 *p, u32 *u)
{
@ -5028,10 +5006,11 @@ static int si_populate_smc_acpi_state(struct amdgpu_device *adev,
table->ACPIState.levels[0].vddc.index,
&table->ACPIState.levels[0].std_vddc);
}
table->ACPIState.levels[0].gen2PCIE = (u8)r600_get_pcie_gen_support(adev,
si_pi->sys_pcie_mask,
si_pi->boot_pcie_gen,
AMDGPU_PCIE_GEN1);
table->ACPIState.levels[0].gen2PCIE =
(u8)amdgpu_get_pcie_gen_support(adev,
si_pi->sys_pcie_mask,
si_pi->boot_pcie_gen,
AMDGPU_PCIE_GEN1);
if (si_pi->vddc_phase_shed_control)
si_populate_phase_shedding_value(adev,
@ -7168,10 +7147,10 @@ static void si_parse_pplib_clock_info(struct amdgpu_device *adev,
pl->vddc = le16_to_cpu(clock_info->si.usVDDC);
pl->vddci = le16_to_cpu(clock_info->si.usVDDCI);
pl->flags = le32_to_cpu(clock_info->si.ulFlags);
pl->pcie_gen = r600_get_pcie_gen_support(adev,
si_pi->sys_pcie_mask,
si_pi->boot_pcie_gen,
clock_info->si.ucPCIEGen);
pl->pcie_gen = amdgpu_get_pcie_gen_support(adev,
si_pi->sys_pcie_mask,
si_pi->boot_pcie_gen,
clock_info->si.ucPCIEGen);
/* patch up vddc if necessary */
ret = si_get_leakage_voltage_from_leakage_index(adev, pl->vddc,
@ -7326,7 +7305,6 @@ static int si_dpm_init(struct amdgpu_device *adev)
struct si_power_info *si_pi;
struct atom_clock_dividers dividers;
int ret;
u32 mask;
si_pi = kzalloc(sizeof(struct si_power_info), GFP_KERNEL);
if (si_pi == NULL)
@ -7336,11 +7314,9 @@ static int si_dpm_init(struct amdgpu_device *adev)
eg_pi = &ni_pi->eg;
pi = &eg_pi->rv7xx;
ret = drm_pcie_get_speed_cap_mask(adev->ddev, &mask);
if (ret)
si_pi->sys_pcie_mask = 0;
else
si_pi->sys_pcie_mask = mask;
si_pi->sys_pcie_mask =
(adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) >>
CAIL_PCIE_LINK_SPEED_SUPPORT_SHIFT;
si_pi->force_pcie_gen = AMDGPU_PCIE_GEN_INVALID;
si_pi->boot_pcie_gen = si_get_current_pcie_speed(adev);

View File

@ -1037,6 +1037,10 @@ static void handle_hpd_rx_irq(void *param)
!is_mst_root_connector) {
/* Downstream Port status changed. */
if (dc_link_detect(dc_link, DETECT_REASON_HPDRX)) {
if (aconnector->fake_enable)
aconnector->fake_enable = false;
amdgpu_dm_update_connector_after_detect(aconnector);
@ -2012,30 +2016,32 @@ static void update_stream_scaling_settings(const struct drm_display_mode *mode,
dst.width = stream->timing.h_addressable;
dst.height = stream->timing.v_addressable;
rmx_type = dm_state->scaling;
if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) {
if (src.width * dst.height <
src.height * dst.width) {
/* height needs less upscaling/more downscaling */
dst.width = src.width *
dst.height / src.height;
} else {
/* width needs less upscaling/more downscaling */
dst.height = src.height *
dst.width / src.width;
if (dm_state) {
rmx_type = dm_state->scaling;
if (rmx_type == RMX_ASPECT || rmx_type == RMX_OFF) {
if (src.width * dst.height <
src.height * dst.width) {
/* height needs less upscaling/more downscaling */
dst.width = src.width *
dst.height / src.height;
} else {
/* width needs less upscaling/more downscaling */
dst.height = src.height *
dst.width / src.width;
}
} else if (rmx_type == RMX_CENTER) {
dst = src;
}
} else if (rmx_type == RMX_CENTER) {
dst = src;
}
dst.x = (stream->timing.h_addressable - dst.width) / 2;
dst.y = (stream->timing.v_addressable - dst.height) / 2;
dst.x = (stream->timing.h_addressable - dst.width) / 2;
dst.y = (stream->timing.v_addressable - dst.height) / 2;
if (dm_state->underscan_enable) {
dst.x += dm_state->underscan_hborder / 2;
dst.y += dm_state->underscan_vborder / 2;
dst.width -= dm_state->underscan_hborder;
dst.height -= dm_state->underscan_vborder;
if (dm_state->underscan_enable) {
dst.x += dm_state->underscan_hborder / 2;
dst.y += dm_state->underscan_vborder / 2;
dst.width -= dm_state->underscan_hborder;
dst.height -= dm_state->underscan_vborder;
}
}
stream->src = src;
@ -2360,12 +2366,7 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
if (aconnector == NULL) {
DRM_ERROR("aconnector is NULL!\n");
goto drm_connector_null;
}
if (dm_state == NULL) {
DRM_ERROR("dm_state is NULL!\n");
goto dm_state_null;
return stream;
}
drm_connector = &aconnector->base;
@ -2377,18 +2378,18 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
*/
if (aconnector->mst_port) {
dm_dp_mst_dc_sink_create(drm_connector);
goto mst_dc_sink_create_done;
return stream;
}
if (create_fake_sink(aconnector))
goto stream_create_fail;
return stream;
}
stream = dc_create_stream_for_sink(aconnector->dc_sink);
if (stream == NULL) {
DRM_ERROR("Failed to create stream for sink!\n");
goto stream_create_fail;
return stream;
}
list_for_each_entry(preferred_mode, &aconnector->base.modes, head) {
@ -2414,9 +2415,12 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
} else {
decide_crtc_timing_for_drm_display_mode(
&mode, preferred_mode,
dm_state->scaling != RMX_OFF);
dm_state ? (dm_state->scaling != RMX_OFF) : false);
}
if (!dm_state)
drm_mode_set_crtcinfo(&mode, 0);
fill_stream_properties_from_drm_display_mode(stream,
&mode, &aconnector->base);
update_stream_scaling_settings(&mode, dm_state, stream);
@ -2426,10 +2430,8 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
drm_connector,
aconnector->dc_sink);
stream_create_fail:
dm_state_null:
drm_connector_null:
mst_dc_sink_create_done:
update_stream_signal(stream);
return stream;
}
@ -2497,6 +2499,27 @@ dm_crtc_duplicate_state(struct drm_crtc *crtc)
return &state->base;
}
static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
{
enum dc_irq_source irq_source;
struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
struct amdgpu_device *adev = crtc->dev->dev_private;
irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
return dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY;
}
static int dm_enable_vblank(struct drm_crtc *crtc)
{
return dm_set_vblank(crtc, true);
}
static void dm_disable_vblank(struct drm_crtc *crtc)
{
dm_set_vblank(crtc, false);
}
/* Implemented only the options currently availible for the driver */
static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
.reset = dm_crtc_reset_state,
@ -2506,6 +2529,8 @@ static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
.page_flip = drm_atomic_helper_page_flip,
.atomic_duplicate_state = dm_crtc_duplicate_state,
.atomic_destroy_state = dm_crtc_destroy_state,
.enable_vblank = dm_enable_vblank,
.disable_vblank = dm_disable_vblank,
};
static enum drm_connector_status
@ -2800,7 +2825,7 @@ int amdgpu_dm_connector_mode_valid(struct drm_connector *connector,
goto fail;
}
stream = dc_create_stream_for_sink(dc_sink);
stream = create_stream_for_sink(aconnector, mode, NULL);
if (stream == NULL) {
DRM_ERROR("Failed to create stream for sink!\n");
goto fail;
@ -3060,6 +3085,9 @@ static int dm_plane_atomic_check(struct drm_plane *plane,
if (!dm_plane_state->dc_state)
return 0;
if (!fill_rects_from_plane_state(state, dm_plane_state->dc_state))
return -EINVAL;
if (dc_validate_plane(dc, dm_plane_state->dc_state) == DC_OK)
return 0;
@ -4632,8 +4660,6 @@ static int dm_update_planes_state(struct dc *dc,
bool pflip_needed = !state->allow_modeset;
int ret = 0;
if (pflip_needed)
return ret;
/* Add new planes */
for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
@ -4648,6 +4674,8 @@ static int dm_update_planes_state(struct dc *dc,
/* Remove any changed/removed planes */
if (!enable) {
if (pflip_needed)
continue;
if (!old_plane_crtc)
continue;
@ -4679,6 +4707,7 @@ static int dm_update_planes_state(struct dc *dc,
*lock_and_validation_needed = true;
} else { /* Add new planes */
struct dc_plane_state *dc_new_plane_state;
if (drm_atomic_plane_disabling(plane->state, new_plane_state))
continue;
@ -4692,38 +4721,50 @@ static int dm_update_planes_state(struct dc *dc,
if (!dm_new_crtc_state->stream)
continue;
if (pflip_needed)
continue;
WARN_ON(dm_new_plane_state->dc_state);
dm_new_plane_state->dc_state = dc_create_plane_state(dc);
dc_new_plane_state = dc_create_plane_state(dc);
if (!dc_new_plane_state) {
ret = -EINVAL;
return ret;
}
DRM_DEBUG_DRIVER("Enabling DRM plane: %d on DRM crtc %d\n",
plane->base.id, new_plane_crtc->base.id);
if (!dm_new_plane_state->dc_state) {
ret = -EINVAL;
ret = fill_plane_attributes(
new_plane_crtc->dev->dev_private,
dc_new_plane_state,
new_plane_state,
new_crtc_state);
if (ret) {
dc_plane_state_release(dc_new_plane_state);
return ret;
}
ret = fill_plane_attributes(
new_plane_crtc->dev->dev_private,
dm_new_plane_state->dc_state,
new_plane_state,
new_crtc_state);
if (ret)
return ret;
/*
* Any atomic check errors that occur after this will
* not need a release. The plane state will be attached
* to the stream, and therefore part of the atomic
* state. It'll be released when the atomic state is
* cleaned.
*/
if (!dc_add_plane_to_context(
dc,
dm_new_crtc_state->stream,
dm_new_plane_state->dc_state,
dc_new_plane_state,
dm_state->context)) {
dc_plane_state_release(dc_new_plane_state);
ret = -EINVAL;
return ret;
}
dm_new_plane_state->dc_state = dc_new_plane_state;
/* Tell DC to do a full surface update every time there
* is a plane change. Inefficient, but works for now.
*/
@ -4737,6 +4778,30 @@ static int dm_update_planes_state(struct dc *dc,
return ret;
}
static int dm_atomic_check_plane_state_fb(struct drm_atomic_state *state,
struct drm_crtc *crtc)
{
struct drm_plane *plane;
struct drm_crtc_state *crtc_state;
WARN_ON(!drm_atomic_get_new_crtc_state(state, crtc));
drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) {
struct drm_plane_state *plane_state =
drm_atomic_get_plane_state(state, plane);
if (IS_ERR(plane_state))
return -EDEADLK;
crtc_state = drm_atomic_get_crtc_state(plane_state->state, crtc);
if (crtc->primary == plane && crtc_state->active) {
if (!plane_state->fb)
return -EINVAL;
}
}
return 0;
}
static int amdgpu_dm_atomic_check(struct drm_device *dev,
struct drm_atomic_state *state)
{
@ -4760,6 +4825,10 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev,
goto fail;
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
ret = dm_atomic_check_plane_state_fb(state, crtc);
if (ret)
goto fail;
if (!drm_atomic_crtc_needs_modeset(new_crtc_state) &&
!new_crtc_state->color_mgmt_changed)
continue;

View File

@ -683,10 +683,8 @@ static const struct amdgpu_irq_src_funcs dm_hpd_irq_funcs = {
void amdgpu_dm_set_irq_funcs(struct amdgpu_device *adev)
{
if (adev->mode_info.num_crtc > 0)
adev->crtc_irq.num_types = AMDGPU_CRTC_IRQ_VLINE1 + adev->mode_info.num_crtc;
else
adev->crtc_irq.num_types = 0;
adev->crtc_irq.num_types = adev->mode_info.num_crtc;
adev->crtc_irq.funcs = &dm_crtc_irq_funcs;
adev->pageflip_irq.num_types = adev->mode_info.num_crtc;

View File

@ -189,6 +189,12 @@ void dm_dp_mst_dc_sink_create(struct drm_connector *connector)
.link = aconnector->dc_link,
.sink_signal = SIGNAL_TYPE_DISPLAY_PORT_MST };
/*
* TODO: Need to further figure out why ddc.algo is NULL while MST port exists
*/
if (!aconnector->port || !aconnector->port->aux.ddc.algo)
return;
edid = drm_dp_mst_get_edid(connector, &aconnector->mst_port->mst_mgr, aconnector->port);
if (!edid) {

View File

@ -1358,13 +1358,13 @@ enum dc_irq_source dc_interrupt_to_irq_source(
return dal_irq_service_to_irq_source(dc->res_pool->irqs, src_id, ext_id);
}
void dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable)
bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable)
{
if (dc == NULL)
return;
return false;
dal_irq_service_set(dc->res_pool->irqs, src, enable);
return dal_irq_service_set(dc->res_pool->irqs, src, enable);
}
void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src)

View File

@ -1749,8 +1749,7 @@ static void enable_link_hdmi(struct pipe_ctx *pipe_ctx)
link->link_enc,
pipe_ctx->clock_source->id,
display_color_depth,
pipe_ctx->stream->signal == SIGNAL_TYPE_HDMI_TYPE_A,
pipe_ctx->stream->signal == SIGNAL_TYPE_DVI_DUAL_LINK,
pipe_ctx->stream->signal,
stream->phy_pix_clk);
if (pipe_ctx->stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)

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