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Platform data changes for omaps for the display subsystem and

Browse Source 
n900 secure mode changes. Note that the n900 secure mode changes
 will still be needed for device tree based booting also.
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Merge tag 'omap-for-v3.13/board-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/boards

From Tony Lindgren:
Platform data changes for omaps for the display subsystem and
n900 secure mode changes. Note that the n900 secure mode changes
will still be needed for device tree based booting also.

* tag 'omap-for-v3.13/board-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (508 commits)
  ARM: OMAP2+: display: Create omap_vout device inside omap_display_init
  ARM: OMAP2+: display: Create omapvrfb and omapfb devices inside omap_display_init
  ARM: OMAP2+: display: Create omapdrm device inside omap_display_init
  ARM: OMAP2+: drm: Don't build device for DMM
  RX-51: Add support for OMAP3 ROM Random Number Generator
  ARM: OMAP3: RX-51: ARM errata 430973 workaround
  ARM: OMAP3: Add secure function omap_smc3() which calling instruction smc #1
  +Linux 3.12-rc4

Signed-off-by: Kevin Hilman <khilman@linaro.org>
This commit is contained in:
Kevin Hilman 2013-10-14 15:46:26 -07:00
commit 5b5bbc20fd
537 changed files with 5314 additions and 3011 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
CREDITS
View File

@ -2808,8 +2808,7 @@ S: Ottawa, Ontario
S: Canada K2P 0X8
N: Mikael Pettersson
E: mikpe@it.uu.se
W: http://user.it.uu.se/~mikpe/linux/
E: mikpelinux@gmail.com
D: Miscellaneous fixes
N: Reed H. Petty

2
Documentation/block/00-INDEX
View File

@ -6,6 +6,8 @@ capability.txt
- Generic Block Device Capability (/sys/block/<device>/capability)
cfq-iosched.txt
- CFQ IO scheduler tunables
cmdline-partition.txt
- how to specify block device partitions on kernel command line
data-integrity.txt
- Block data integrity
deadline-iosched.txt

8
Documentation/block/cmdline-partition.txt
View File

@ -1,9 +1,9 @@
Embedded device command line partition
Embedded device command line partition parsing
=====================================================================
Read block device partition table from command line.
The partition used for fixed block device (eMMC) embedded device.
It is no MBR, save storage space. Bootloader can be easily accessed
Support for reading the block device partition table from the command line.
It is typically used for fixed block (eMMC) embedded devices.
It has no MBR, so saves storage space. Bootloader can be easily accessed
by absolute address of data on the block device.
Users can easily change the partition.

10
Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
View File

@ -1,11 +1,11 @@
* Samsung Exynos specific extensions to the Synopsis Designware Mobile
* Samsung Exynos specific extensions to the Synopsys Designware Mobile
Storage Host Controller
The Synopsis designware mobile storage host controller is used to interface
The Synopsys designware mobile storage host controller is used to interface
a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
differences between the core Synopsis dw mshc controller properties described
by synopsis-dw-mshc.txt and the properties used by the Samsung Exynos specific
extensions to the Synopsis Designware Mobile Storage Host Controller.
differences between the core Synopsys dw mshc controller properties described
by synopsys-dw-mshc.txt and the properties used by the Samsung Exynos specific
extensions to the Synopsys Designware Mobile Storage Host Controller.
Required Properties:

10
Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
View File

@ -1,11 +1,11 @@
* Rockchip specific extensions to the Synopsis Designware Mobile
* Rockchip specific extensions to the Synopsys Designware Mobile
Storage Host Controller
The Synopsis designware mobile storage host controller is used to interface
The Synopsys designware mobile storage host controller is used to interface
a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
differences between the core Synopsis dw mshc controller properties described
by synopsis-dw-mshc.txt and the properties used by the Rockchip specific
extensions to the Synopsis Designware Mobile Storage Host Controller.
differences between the core Synopsys dw mshc controller properties described
by synopsys-dw-mshc.txt and the properties used by the Rockchip specific
extensions to the Synopsys Designware Mobile Storage Host Controller.
Required Properties:

8
Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt → Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt
View File

@ -1,14 +1,14 @@
* Synopsis Designware Mobile Storage Host Controller
* Synopsys Designware Mobile Storage Host Controller
The Synopsis designware mobile storage host controller is used to interface
The Synopsys designware mobile storage host controller is used to interface
a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
differences between the core mmc properties described by mmc.txt and the
properties used by the Synopsis Designware Mobile Storage Host Controller.
properties used by the Synopsys Designware Mobile Storage Host Controller.
Required Properties:
* compatible: should be
- snps,dw-mshc: for controllers compliant with synopsis dw-mshc.
- snps,dw-mshc: for controllers compliant with synopsys dw-mshc.
* #address-cells: should be 1.
* #size-cells: should be 0.

18
Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
View File

@ -86,6 +86,7 @@ General Properties:
Clock Properties:
- fsl,cksel Timer reference clock source.
- fsl,tclk-period Timer reference clock period in nanoseconds.
- fsl,tmr-prsc Prescaler, divides the output clock.
- fsl,tmr-add Frequency compensation value.
@ -97,7 +98,7 @@ Clock Properties:
clock. You must choose these carefully for the clock to work right.
Here is how to figure good values:
TimerOsc = system clock MHz
TimerOsc = selected reference clock MHz
tclk_period = desired clock period nanoseconds
NominalFreq = 1000 / tclk_period MHz
FreqDivRatio = TimerOsc / NominalFreq (must be greater that 1.0)
@ -114,6 +115,20 @@ Clock Properties:
Pulse Per Second (PPS) signal, since this will be offered to the PPS
subsystem to synchronize the Linux clock.
Reference clock source is determined by the value, which is holded
in CKSEL bits in TMR_CTRL register. "fsl,cksel" property keeps the
value, which will be directly written in those bits, that is why,
according to reference manual, the next clock sources can be used:
<0> - external high precision timer reference clock (TSEC_TMR_CLK
input is used for this purpose);
<1> - eTSEC system clock;
<2> - eTSEC1 transmit clock;
<3> - RTC clock input.
When this attribute is not used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.
Example:
ptp_clock@24E00 {
@ -121,6 +136,7 @@ Example:
reg = <0x24E00 0xB0>;
interrupts = <12 0x8 13 0x8>;
interrupt-parent = < &ipic >;
fsl,cksel = <1>;
fsl,tclk-period = <10>;
fsl,tmr-prsc = <100>;
fsl,tmr-add = <0x999999A4>;

2
Documentation/devicetree/bindings/pci/designware-pcie.txt
View File

@ -1,4 +1,4 @@
* Synopsis Designware PCIe interface
* Synopsys Designware PCIe interface
Required properties:
- compatible: should contain "snps,dw-pcie" to identify the

0
Documentation/devicetree/bindings/tty/serial/qca,ar9330-uart.txt → Documentation/devicetree/bindings/serial/qca,ar9330-uart.txt
View File

10
Documentation/kernel-parameters.txt
View File

@ -480,6 +480,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Format: <io>,<irq>,<mode>
See header of drivers/net/hamradio/baycom_ser_hdx.c.
blkdevparts= Manual partition parsing of block device(s) for
embedded devices based on command line input.
See Documentation/block/cmdline-partition.txt
boot_delay= Milliseconds to delay each printk during boot.
Values larger than 10 seconds (10000) are changed to
no delay (0).
@ -1357,7 +1361,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
pages. In the event, a node is too small to have both
kernelcore and Movable pages, kernelcore pages will
take priority and other nodes will have a larger number
of kernelcore pages. The Movable zone is used for the
of Movable pages. The Movable zone is used for the
allocation of pages that may be reclaimed or moved
by the page migration subsystem. This means that
HugeTLB pages may not be allocated from this zone.
@ -3485,6 +3489,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
the unplug protocol
never -- do not unplug even if version check succeeds
xen_nopvspin [X86,XEN]
Disables the ticketlock slowpath using Xen PV
optimizations.
xirc2ps_cs= [NET,PCMCIA]
Format:
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]

6
Documentation/sound/alsa/HD-Audio-Models.txt
View File

@ -296,6 +296,12 @@ Cirrus Logic CS4206/4207
imac27 IMac 27 Inch
auto BIOS setup (default)
Cirrus Logic CS4208
===================
mba6 MacBook Air 6,1 and 6,2
gpio0 Enable GPIO 0 amp
auto BIOS setup (default)
VIA VT17xx/VT18xx/VT20xx
========================
auto BIOS setup (default)

40
MAINTAINERS
View File

@ -824,15 +824,21 @@ S: Maintained
F: arch/arm/mach-gemini/
ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
M: Barry Song <baohua.song@csr.com>
M: Barry Song <baohua@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
T: git git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux.git
S: Maintained
F: arch/arm/mach-prima2/
F: drivers/clk/clk-prima2.c
F: drivers/clocksource/timer-prima2.c
F: drivers/clocksource/timer-marco.c
F: drivers/dma/sirf-dma.c
F: drivers/i2c/busses/i2c-sirf.c
F: drivers/input/misc/sirfsoc-onkey.c
F: drivers/irqchip/irq-sirfsoc.c
F: drivers/mmc/host/sdhci-sirf.c
F: drivers/pinctrl/sirf/
F: drivers/rtc/rtc-sirfsoc.c
F: drivers/spi/spi-sirf.c
ARM/EBSA110 MACHINE SUPPORT
@ -1812,7 +1818,8 @@ S: Supported
F: drivers/net/ethernet/broadcom/bnx2x/
BROADCOM BCM281XX/BCM11XXX ARM ARCHITECTURE
M: Christian Daudt <csd@broadcom.com>
M: Christian Daudt <bcm@fixthebug.org>
L: bcm-kernel-feedback-list@broadcom.com
T: git git://git.github.com/broadcom/bcm11351
S: Maintained
F: arch/arm/mach-bcm/
@ -2639,6 +2646,18 @@ F: include/linux/device-mapper.h
F: include/linux/dm-*.h
F: include/uapi/linux/dm-*.h
DIGI NEO AND CLASSIC PCI PRODUCTS
M: Lidza Louina <lidza.louina@gmail.com>
L: driverdev-devel@linuxdriverproject.org
S: Maintained
F: drivers/staging/dgnc/
DIGI EPCA PCI PRODUCTS
M: Lidza Louina <lidza.louina@gmail.com>
L: driverdev-devel@linuxdriverproject.org
S: Maintained
F: drivers/staging/dgap/
DIOLAN U2C-12 I2C DRIVER
M: Guenter Roeck <linux@roeck-us.net>
L: linux-i2c@vger.kernel.org
@ -4457,6 +4476,13 @@ L: linux-serial@vger.kernel.org
S: Maintained
F: drivers/tty/serial/ioc3_serial.c
IOMMU DRIVERS
M: Joerg Roedel <joro@8bytes.org>
L: iommu@lists.linux-foundation.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
S: Maintained
F: drivers/iommu/
IP MASQUERADING
M: Juanjo Ciarlante <jjciarla@raiz.uncu.edu.ar>
S: Maintained
@ -6595,7 +6621,7 @@ S: Obsolete
F: drivers/net/wireless/prism54/
PROMISE SATA TX2/TX4 CONTROLLER LIBATA DRIVER
M: Mikael Pettersson <mikpe@it.uu.se>
M: Mikael Pettersson <mikpelinux@gmail.com>
L: linux-ide@vger.kernel.org
S: Maintained
F: drivers/ata/sata_promise.*
@ -7258,9 +7284,9 @@ F: include/linux/sched.h
F: include/uapi/linux/sched.h
SCORE ARCHITECTURE
M: Chen Liqin <liqin.chen@sunplusct.com>
M: Chen Liqin <liqin.linux@gmail.com>
M: Lennox Wu <lennox.wu@gmail.com>
W: http://www.sunplusct.com
W: http://www.sunplus.com
S: Supported
F: arch/score/
@ -8724,9 +8750,8 @@ F: Documentation/hid/hiddev.txt
F: drivers/hid/usbhid/
USB/IP DRIVERS
M: Matt Mooney <mfm@muteddisk.com>
L: linux-usb@vger.kernel.org
S: Maintained
S: Orphan
F: drivers/staging/usbip/
USB ISP116X DRIVER
@ -9366,6 +9391,7 @@ F: arch/arm64/include/asm/xen/
XEN NETWORK BACKEND DRIVER
M: Ian Campbell <ian.campbell@citrix.com>
M: Wei Liu <wei.liu2@citrix.com>
L: xen-devel@lists.xenproject.org (moderated for non-subscribers)
L: netdev@vger.kernel.org
S: Supported

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 12
SUBLEVEL = 0
EXTRAVERSION = -rc2
EXTRAVERSION = -rc4
NAME = One Giant Leap for Frogkind
# *DOCUMENTATION*

3
arch/Kconfig
View File

@ -286,9 +286,6 @@ config HAVE_PERF_USER_STACK_DUMP
config HAVE_ARCH_JUMP_LABEL
bool
config HAVE_ARCH_MUTEX_CPU_RELAX
bool
config HAVE_RCU_TABLE_FREE
bool

9
arch/arc/include/asm/spinlock.h
View File

@ -45,7 +45,14 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
lock->slock = __ARCH_SPIN_LOCK_UNLOCKED__;
unsigned int tmp = __ARCH_SPIN_LOCK_UNLOCKED__;
__asm__ __volatile__(
" ex %0, [%1] \n"
: "+r" (tmp)
: "r"(&(lock->slock))
: "memory");
smp_mb();
}

4
arch/arc/include/asm/uaccess.h
View File

@ -43,7 +43,7 @@
* Because it essentially checks if buffer end is within limit and @len is
* non-ngeative, which implies that buffer start will be within limit too.
*
* The reason for rewriting being, for majorit yof cases, @len is generally
* The reason for rewriting being, for majority of cases, @len is generally
* compile time constant, causing first sub-expression to be compile time
* subsumed.
*
@ -53,7 +53,7 @@
*
*/
#define __user_ok(addr, sz) (((sz) <= TASK_SIZE) && \
(((addr)+(sz)) <= get_fs()))
((addr) <= (get_fs() - (sz))))
#define __access_ok(addr, sz) (unlikely(__kernel_ok) || \
likely(__user_ok((addr), (sz))))

25
arch/arc/kernel/signal.c
View File

@ -101,7 +101,6 @@ SYSCALL_DEFINE0(rt_sigreturn)
{
struct rt_sigframe __user *sf;
unsigned int magic;
int err;
struct pt_regs *regs = current_pt_regs();
/* Always make any pending restarted system calls return -EINTR */
@ -119,15 +118,16 @@ SYSCALL_DEFINE0(rt_sigreturn)
if (!access_ok(VERIFY_READ, sf, sizeof(*sf)))
goto badframe;
err = restore_usr_regs(regs, sf);
err |= __get_user(magic, &sf->sigret_magic);
if (err)
if (__get_user(magic, &sf->sigret_magic))
goto badframe;
if (unlikely(is_do_ss_needed(magic)))
if (restore_altstack(&sf->uc.uc_stack))
goto badframe;
if (restore_usr_regs(regs, sf))
goto badframe;
/* Don't restart from sigreturn */
syscall_wont_restart(regs);
@ -190,6 +190,15 @@ setup_rt_frame(int signo, struct k_sigaction *ka, siginfo_t *info,
if (!sf)
return 1;
/*
* w/o SA_SIGINFO, struct ucontext is partially populated (only
* uc_mcontext/uc_sigmask) for kernel's normal user state preservation
* during signal handler execution. This works for SA_SIGINFO as well
* although the semantics are now overloaded (the same reg state can be
* inspected by userland: but are they allowed to fiddle with it ?
*/
err |= stash_usr_regs(sf, regs, set);
/*
* SA_SIGINFO requires 3 args to signal handler:
* #1: sig-no (common to any handler)
@ -213,14 +222,6 @@ setup_rt_frame(int signo, struct k_sigaction *ka, siginfo_t *info,
magic = MAGIC_SIGALTSTK;
}
/*
* w/o SA_SIGINFO, struct ucontext is partially populated (only
* uc_mcontext/uc_sigmask) for kernel's normal user state preservation
* during signal handler execution. This works for SA_SIGINFO as well
* although the semantics are now overloaded (the same reg state can be
* inspected by userland: but are they allowed to fiddle with it ?
*/
err |= stash_usr_regs(sf, regs, set);
err |= __put_user(magic, &sf->sigret_magic);
if (err)
return err;

7
arch/arc/kernel/time.c
View File

@ -227,12 +227,9 @@ void __attribute__((weak)) arc_local_timer_setup(unsigned int cpu)
{
struct clock_event_device *clk = &per_cpu(arc_clockevent_device, cpu);
clockevents_calc_mult_shift(clk, arc_get_core_freq(), 5);
clk->max_delta_ns = clockevent_delta2ns(ARC_TIMER_MAX, clk);
clk->cpumask = cpumask_of(cpu);
clockevents_register_device(clk);
clockevents_config_and_register(clk, arc_get_core_freq(),
0, ARC_TIMER_MAX);
/*
* setup the per-cpu timer IRQ handler - for all cpus

6
arch/arc/kernel/unaligned.c
View File

@ -245,6 +245,12 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
regs->status32 &= ~STATUS_DE_MASK;
} else {
regs->ret += state.instr_len;
/* handle zero-overhead-loop */
if ((regs->ret == regs->lp_end) && (regs->lp_count)) {
regs->ret = regs->lp_start;
regs->lp_count--;
}
}
return 0;

3
arch/arm/Kconfig
View File

@ -2217,8 +2217,7 @@ config NEON
config KERNEL_MODE_NEON
bool "Support for NEON in kernel mode"
default n
depends on NEON
depends on NEON && AEABI
help
Say Y to include support for NEON in kernel mode.

2
arch/arm/boot/dts/Makefile
View File

@ -41,6 +41,8 @@ dtb-$(CONFIG_ARCH_AT91) += sama5d33ek.dtb
dtb-$(CONFIG_ARCH_AT91) += sama5d34ek.dtb
dtb-$(CONFIG_ARCH_AT91) += sama5d35ek.dtb
dtb-$(CONFIG_ARCH_ATLAS6) += atlas6-evb.dtb
dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
dtb-$(CONFIG_ARCH_BCM) += bcm11351-brt.dtb \
bcm28155-ap.dtb

49
arch/arm/boot/dts/armada-370-netgear-rn102.dts
View File

@ -27,6 +27,25 @@
};
soc {
ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
pcie-controller {
status = "okay";
/* Connected to Marvell SATA controller */
pcie@1,0 {
/* Port 0, Lane 0 */
status = "okay";
};
/* Connected to FL1009 USB 3.0 controller */
pcie@2,0 {
/* Port 1, Lane 0 */
status = "okay";
};
};
internal-regs {
serial@12000 {
clock-frequency = <200000000>;
@ -57,6 +76,11 @@
marvell,pins = "mpp56";
marvell,function = "gpio";
};
poweroff: poweroff {
marvell,pins = "mpp8";
marvell,function = "gpio";
};
};
mdio {
@ -89,22 +113,6 @@
pwm_polarity = <0>;
};
};
pcie-controller {
status = "okay";
/* Connected to Marvell SATA controller */
pcie@1,0 {
/* Port 0, Lane 0 */
status = "okay";
};
/* Connected to FL1009 USB 3.0 controller */
pcie@2,0 {
/* Port 1, Lane 0 */
status = "okay";
};
};
};
};
@ -160,7 +168,7 @@
button@1 {
label = "Power Button";
linux,code = <116>; /* KEY_POWER */
gpios = <&gpio1 30 1>;
gpios = <&gpio1 30 0>;
};
button@2 {
@ -176,4 +184,11 @@
};
};
gpio_poweroff {
compatible = "gpio-poweroff";
pinctrl-0 = <&poweroff>;
pinctrl-names = "default";
gpios = <&gpio0 8 1>;
};
};

11
arch/arm/boot/dts/armada-xp.dtsi
View File

@ -70,6 +70,8 @@
timer@20300 {
compatible = "marvell,armada-xp-timer";
clocks = <&coreclk 2>, <&refclk>;
clock-names = "nbclk", "fixed";
};
coreclk: mvebu-sar@18230 {
@ -169,4 +171,13 @@
};
};
};
clocks {
/* 25 MHz reference crystal */
refclk: oscillator {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <25000000>;
};
};
};

6
arch/arm/boot/dts/at91sam9x5.dtsi
View File

@ -190,12 +190,12 @@
AT91_PIOA 8 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PA8 periph A */
};
pinctrl_uart2_rts: uart2_rts-0 {
pinctrl_usart2_rts: usart2_rts-0 {
atmel,pins =
<AT91_PIOB 0 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PB0 periph B */
};
pinctrl_uart2_cts: uart2_cts-0 {
pinctrl_usart2_cts: usart2_cts-0 {
atmel,pins =
<AT91_PIOB 1 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PB1 periph B */
};
@ -556,6 +556,7 @@
interrupts = <12 IRQ_TYPE_LEVEL_HIGH 0>;
dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(0)>;
dma-names = "rxtx";
pinctrl-names = "default";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
@ -567,6 +568,7 @@
interrupts = <26 IRQ_TYPE_LEVEL_HIGH 0>;
dmas = <&dma1 1 AT91_DMA_CFG_PER_ID(0)>;
dma-names = "rxtx";
pinctrl-names = "default";
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";

12
arch/arm/boot/dts/atlas6.dtsi
View File

@ -181,6 +181,8 @@
interrupts = <17>;
fifosize = <128>;
clocks = <&clks 13>;
sirf,uart-dma-rx-channel = <21>;
sirf,uart-dma-tx-channel = <2>;
};
uart1: uart@b0060000 {
@ -199,6 +201,8 @@
interrupts = <19>;
fifosize = <128>;
clocks = <&clks 15>;
sirf,uart-dma-rx-channel = <6>;
sirf,uart-dma-tx-channel = <7>;
};
usp0: usp@b0080000 {
@ -206,7 +210,10 @@
compatible = "sirf,prima2-usp";
reg = <0xb0080000 0x10000>;
interrupts = <20>;
fifosize = <128>;
clocks = <&clks 28>;
sirf,usp-dma-rx-channel = <17>;
sirf,usp-dma-tx-channel = <18>;
};
usp1: usp@b0090000 {
@ -214,7 +221,10 @@
compatible = "sirf,prima2-usp";
reg = <0xb0090000 0x10000>;
interrupts = <21>;
fifosize = <128>;
clocks = <&clks 29>;
sirf,usp-dma-rx-channel = <14>;
sirf,usp-dma-tx-channel = <15>;
};
dmac0: dma-controller@b00b0000 {
@ -237,6 +247,8 @@
compatible = "sirf,prima2-vip";
reg = <0xb00C0000 0x10000>;
clocks = <&clks 31>;
interrupts = <14>;
sirf,vip-dma-rx-channel = <16>;
};
spi0: spi@b00d0000 {

3
arch/arm/boot/dts/kirkwood.dtsi
View File

@ -13,6 +13,7 @@
cpu@0 {
device_type = "cpu";
compatible = "marvell,feroceon";
reg = <0>;
clocks = <&core_clk 1>, <&core_clk 3>, <&gate_clk 11>;
clock-names = "cpu_clk", "ddrclk", "powersave";
};
@ -167,7 +168,7 @@
xor@60900 {
compatible = "marvell,orion-xor";
reg = <0x60900 0x100
0xd0B00 0x100>;
0x60B00 0x100>;
status = "okay";
clocks = <&gate_clk 16>;

27
arch/arm/boot/dts/prima2.dtsi
View File

@ -171,7 +171,8 @@
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0xb0000000 0xb0000000 0x180000>;
ranges = <0xb0000000 0xb0000000 0x180000>,
<0x56000000 0x56000000 0x1b00000>;
timer@b0020000 {
compatible = "sirf,prima2-tick";
@ -196,25 +197,32 @@
uart0: uart@b0050000 {
cell-index = <0>;
compatible = "sirf,prima2-uart";
reg = <0xb0050000 0x10000>;
reg = <0xb0050000 0x1000>;
interrupts = <17>;
fifosize = <128>;
clocks = <&clks 13>;
sirf,uart-dma-rx-channel = <21>;
sirf,uart-dma-tx-channel = <2>;
};
uart1: uart@b0060000 {
cell-index = <1>;
compatible = "sirf,prima2-uart";
reg = <0xb0060000 0x10000>;
reg = <0xb0060000 0x1000>;
interrupts = <18>;
fifosize = <32>;
clocks = <&clks 14>;
};
uart2: uart@b0070000 {
cell-index = <2>;
compatible = "sirf,prima2-uart";
reg = <0xb0070000 0x10000>;
reg = <0xb0070000 0x1000>;
interrupts = <19>;
fifosize = <128>;
clocks = <&clks 15>;
sirf,uart-dma-rx-channel = <6>;
sirf,uart-dma-tx-channel = <7>;
};
usp0: usp@b0080000 {
@ -222,7 +230,10 @@
compatible = "sirf,prima2-usp";
reg = <0xb0080000 0x10000>;
interrupts = <20>;
fifosize = <128>;
clocks = <&clks 28>;
sirf,usp-dma-rx-channel = <17>;
sirf,usp-dma-tx-channel = <18>;
};
usp1: usp@b0090000 {
@ -230,7 +241,10 @@
compatible = "sirf,prima2-usp";
reg = <0xb0090000 0x10000>;
interrupts = <21>;
fifosize = <128>;
clocks = <&clks 29>;
sirf,usp-dma-rx-channel = <14>;
sirf,usp-dma-tx-channel = <15>;
};
usp2: usp@b00a0000 {
@ -238,7 +252,10 @@
compatible = "sirf,prima2-usp";
reg = <0xb00a0000 0x10000>;
interrupts = <22>;
fifosize = <128>;
clocks = <&clks 30>;
sirf,usp-dma-rx-channel = <10>;
sirf,usp-dma-tx-channel = <11>;
};
dmac0: dma-controller@b00b0000 {
@ -261,6 +278,8 @@
compatible = "sirf,prima2-vip";
reg = <0xb00C0000 0x10000>;
clocks = <&clks 31>;
interrupts = <14>;
sirf,vip-dma-rx-channel = <16>;
};
spi0: spi@b00d0000 {

38
arch/arm/common/edma.c
View File

@ -269,6 +269,11 @@ static const struct edmacc_param dummy_paramset = {
.ccnt = 1,
};
static const struct of_device_id edma_of_ids[] = {
{ .compatible = "ti,edma3", },
{}
};
/*****************************************************************************/
static void map_dmach_queue(unsigned ctlr, unsigned ch_no,
@ -560,14 +565,38 @@ static int reserve_contiguous_slots(int ctlr, unsigned int id,
static int prepare_unused_channel_list(struct device *dev, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
int i, ctlr;
int i, count, ctlr;
struct of_phandle_args dma_spec;
if (dev->of_node) {
count = of_property_count_strings(dev->of_node, "dma-names");
if (count < 0)
return 0;
for (i = 0; i < count; i++) {
if (of_parse_phandle_with_args(dev->of_node, "dmas",
"#dma-cells", i,
&dma_spec))
continue;
if (!of_match_node(edma_of_ids, dma_spec.np)) {
of_node_put(dma_spec.np);
continue;
}
clear_bit(EDMA_CHAN_SLOT(dma_spec.args[0]),
edma_cc[0]->edma_unused);
of_node_put(dma_spec.np);
}
return 0;
}
/* For non-OF case */
for (i = 0; i < pdev->num_resources; i++) {
if ((pdev->resource[i].flags & IORESOURCE_DMA) &&
(int)pdev->resource[i].start >= 0) {
ctlr = EDMA_CTLR(pdev->resource[i].start);
clear_bit(EDMA_CHAN_SLOT(pdev->resource[i].start),
edma_cc[ctlr]->edma_unused);
edma_cc[ctlr]->edma_unused);
}
}
@ -1762,11 +1791,6 @@ static int edma_probe(struct platform_device *pdev)
return 0;
}
static const struct of_device_id edma_of_ids[] = {
{ .compatible = "ti,edma3", },
{}
};
static struct platform_driver edma_driver = {
.driver = {
.name = "edma",

1
arch/arm/configs/multi_v7_defconfig
View File

@ -135,6 +135,7 @@ CONFIG_MMC=y
CONFIG_MMC_ARMMMCI=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_ESDHC_IMX=y
CONFIG_MMC_SDHCI_TEGRA=y
CONFIG_MMC_SDHCI_SPEAR=y
CONFIG_MMC_OMAP=y

6
arch/arm/crypto/aes-armv4.S
View File

@ -148,7 +148,7 @@ AES_Te:
@ const AES_KEY *key) {
.align 5
ENTRY(AES_encrypt)
sub r3,pc,#8 @ AES_encrypt
adr r3,AES_encrypt
stmdb sp!,{r1,r4-r12,lr}
mov r12,r0 @ inp
mov r11,r2
@ -381,7 +381,7 @@ _armv4_AES_encrypt:
.align 5
ENTRY(private_AES_set_encrypt_key)
_armv4_AES_set_encrypt_key:
sub r3,pc,#8 @ AES_set_encrypt_key
adr r3,_armv4_AES_set_encrypt_key
teq r0,#0
moveq r0,#-1
beq .Labrt
@ -843,7 +843,7 @@ AES_Td:
@ const AES_KEY *key) {
.align 5
ENTRY(AES_decrypt)
sub r3,pc,#8 @ AES_decrypt
adr r3,AES_decrypt
stmdb sp!,{r1,r4-r12,lr}
mov r12,r0 @ inp
mov r11,r2

7
arch/arm/include/asm/uaccess.h
View File

@ -19,6 +19,13 @@
#include <asm/unified.h>
#include <asm/compiler.h>
#if __LINUX_ARM_ARCH__ < 6
#include <asm-generic/uaccess-unaligned.h>
#else
#define __get_user_unaligned __get_user
#define __put_user_unaligned __put_user
#endif
#define VERIFY_READ 0
#define VERIFY_WRITE 1

4
arch/arm/kernel/entry-common.S
View File

@ -442,10 +442,10 @@ local_restart:
ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine
add r1, sp, #S_OFF
cmp scno, #(__ARM_NR_BASE - __NR_SYSCALL_BASE)
2: cmp scno, #(__ARM_NR_BASE - __NR_SYSCALL_BASE)
eor r0, scno, #__NR_SYSCALL_BASE @ put OS number back
bcs arm_syscall
2: mov why, #0 @ no longer a real syscall
mov why, #0 @ no longer a real syscall
b sys_ni_syscall @ not private func
#if defined(CONFIG_OABI_COMPAT) || !defined(CONFIG_AEABI)

8
arch/arm/kernel/entry-header.S
View File

@ -329,10 +329,10 @@
#ifdef CONFIG_CONTEXT_TRACKING
.if \save
stmdb sp!, {r0-r3, ip, lr}
bl user_exit
bl context_tracking_user_exit
ldmia sp!, {r0-r3, ip, lr}
.else
bl user_exit
bl context_tracking_user_exit
.endif
#endif
.endm
@ -341,10 +341,10 @@
#ifdef CONFIG_CONTEXT_TRACKING
.if \save
stmdb sp!, {r0-r3, ip, lr}
bl user_enter
bl context_tracking_user_enter
ldmia sp!, {r0-r3, ip, lr}
.else
bl user_enter
bl context_tracking_user_enter
.endif
#endif
.endm

6
arch/arm/kvm/reset.c
View File

@ -58,14 +58,14 @@ static const struct kvm_irq_level a15_vtimer_irq = {
*/
int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
{
struct kvm_regs *cpu_reset;
struct kvm_regs *reset_regs;
const struct kvm_irq_level *cpu_vtimer_irq;
switch (vcpu->arch.target) {
case KVM_ARM_TARGET_CORTEX_A15:
if (vcpu->vcpu_id > a15_max_cpu_idx)
return -EINVAL;
cpu_reset = &a15_regs_reset;
reset_regs = &a15_regs_reset;
vcpu->arch.midr = read_cpuid_id();
cpu_vtimer_irq = &a15_vtimer_irq;
break;
@ -74,7 +74,7 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
}
/* Reset core registers */
memcpy(&vcpu->arch.regs, cpu_reset, sizeof(vcpu->arch.regs));
memcpy(&vcpu->arch.regs, reset_regs, sizeof(vcpu->arch.regs));
/* Reset CP15 registers */
kvm_reset_coprocs(vcpu);

2
arch/arm/mach-at91/at91rm9200_time.c
View File

@ -93,7 +93,7 @@ static irqreturn_t at91rm9200_timer_interrupt(int irq, void *dev_id)
static struct irqaction at91rm9200_timer_irq = {
.name = "at91_tick",
.flags = IRQF_SHARED | IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
.flags = IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL,
.handler = at91rm9200_timer_interrupt,
.irq = NR_IRQS_LEGACY + AT91_ID_SYS,
};

2
arch/arm/mach-at91/at91sam926x_time.c
View File

@ -171,7 +171,7 @@ static irqreturn_t at91sam926x_pit_interrupt(int irq, void *dev_id)
static struct irqaction at91sam926x_pit_irq = {
.name = "at91_tick",
.flags = IRQF_SHARED | IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
.flags = IRQF_SHARED | IRQF_TIMER | IRQF_IRQPOLL,
.handler = at91sam926x_pit_interrupt,
.irq = NR_IRQS_LEGACY + AT91_ID_SYS,
};

8
arch/arm/mach-at91/at91sam9g45_reset.S
View File

@ -16,11 +16,17 @@
#include "at91_rstc.h"
.arm
/*
* at91_ramc_base is an array void*
* init at NULL if only one DDR controler is present in or DT
*/
.globl at91sam9g45_restart
at91sam9g45_restart:
ldr r5, =at91_ramc_base @ preload constants
ldr r0, [r5]
ldr r5, [r5, #4] @ ddr1
cmp r5, #0
ldr r4, =at91_rstc_base
ldr r1, [r4]
@ -30,6 +36,8 @@ at91sam9g45_restart:
.balign 32 @ align to cache line
strne r2, [r5, #AT91_DDRSDRC_RTR] @ disable DDR1 access
strne r3, [r5, #AT91_DDRSDRC_LPR] @ power down DDR1
str r2, [r0, #AT91_DDRSDRC_RTR] @ disable DDR0 access
str r3, [r0, #AT91_DDRSDRC_LPR] @ power down DDR0
str r4, [r1, #AT91_RSTC_CR] @ reset processor

2
arch/arm/mach-at91/at91x40_time.c
View File

@ -57,7 +57,7 @@ static irqreturn_t at91x40_timer_interrupt(int irq, void *dev_id)
static struct irqaction at91x40_timer_irq = {
.name = "at91_tick",
.flags = IRQF_DISABLED | IRQF_TIMER,
.flags = IRQF_TIMER,
.handler = at91x40_timer_interrupt
};

2
arch/arm/mach-davinci/board-dm365-evm.c
View File

@ -176,7 +176,7 @@ static struct at24_platform_data eeprom_info = {
.context = (void *)0x7f00,
};
static struct snd_platform_data dm365_evm_snd_data = {
static struct snd_platform_data dm365_evm_snd_data __maybe_unused = {
.asp_chan_q = EVENTQ_3,
};

4
arch/arm/mach-davinci/include/mach/serial.h
View File

@ -15,8 +15,6 @@
#include <mach/hardware.h>
#include <linux/platform_device.h>
#define DAVINCI_UART0_BASE (IO_PHYS + 0x20000)
#define DAVINCI_UART1_BASE (IO_PHYS + 0x20400)
#define DAVINCI_UART2_BASE (IO_PHYS + 0x20800)
@ -39,6 +37,8 @@
#define UART_DM646X_SCR_TX_WATERMARK 0x08
#ifndef __ASSEMBLY__
#include <linux/platform_device.h>
extern int davinci_serial_init(struct platform_device *);
#endif

7
arch/arm/mach-integrator/pci_v3.h
View File

@ -1,2 +1,9 @@
/* Simple oneliner include to the PCIv3 early init */
#ifdef CONFIG_PCI
extern int pci_v3_early_init(void);
#else
static inline int pci_v3_early_init(void)
{
return 0;
}
#endif

8
arch/arm/mach-mvebu/coherency.c
View File

@ -140,6 +140,7 @@ int __init coherency_init(void)
coherency_base = of_iomap(np, 0);
coherency_cpu_base = of_iomap(np, 1);
set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
of_node_put(np);
}
return 0;
@ -147,9 +148,14 @@ int __init coherency_init(void)
static int __init coherency_late_init(void)
{
if (of_find_matching_node(NULL, of_coherency_table))
struct device_node *np;
np = of_find_matching_node(NULL, of_coherency_table);
if (np) {
bus_register_notifier(&platform_bus_type,
&mvebu_hwcc_platform_nb);
of_node_put(np);
}
return 0;
}

1
arch/arm/mach-mvebu/pmsu.c
View File

@ -67,6 +67,7 @@ int __init armada_370_xp_pmsu_init(void)
pr_info("Initializing Power Management Service Unit\n");
pmsu_mp_base = of_iomap(np, 0);
pmsu_reset_base = of_iomap(np, 1);
of_node_put(np);
}
return 0;

1
arch/arm/mach-mvebu/system-controller.c
View File

@ -98,6 +98,7 @@ static int __init mvebu_system_controller_init(void)
BUG_ON(!match);
system_controller_base = of_iomap(np, 0);
mvebu_sc = (struct mvebu_system_controller *)match->data;
of_node_put(np);
}
return 0;

6
arch/arm/mach-omap2/Makefile
View File

@ -8,7 +8,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \
# Common support
obj-y := id.o io.o control.o mux.o devices.o fb.o serial.o gpmc.o timer.o pm.o \
common.o gpio.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \
omap_device.o sram.o
omap_device.o sram.o drm.o
omap-2-3-common = irq.o
hwmod-common = omap_hwmod.o omap_hwmod_reset.o \
@ -228,10 +228,6 @@ endif
# OMAP2420 MSDI controller integration support ("MMC")
obj-$(CONFIG_SOC_OMAP2420) += msdi.o
ifneq ($(CONFIG_DRM_OMAP),)
obj-y += drm.o
endif
# Specific board support
obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o
obj-$(CONFIG_MACH_OMAP_H4) += board-h4.o

19
arch/arm/mach-omap2/board-rx51-peripherals.c
View File

@ -57,6 +57,8 @@
#include "common-board-devices.h"
#include "gpmc.h"
#include "gpmc-onenand.h"
#include "soc.h"
#include "omap-secure.h"
#define SYSTEM_REV_B_USES_VAUX3 0x1699
#define SYSTEM_REV_S_USES_VAUX3 0x8
@ -1289,6 +1291,22 @@ static void __init rx51_init_twl4030_hwmon(void)
platform_device_register(&madc_hwmon);
}
static struct platform_device omap3_rom_rng_device = {
.name = "omap3-rom-rng",
.id = -1,
.dev = {
.platform_data = rx51_secure_rng_call,
},
};
static void __init rx51_init_omap3_rom_rng(void)
{
if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
pr_info("RX-51: Registring OMAP3 HWRNG device\n");
platform_device_register(&omap3_rom_rng_device);
}
}
void __init rx51_peripherals_init(void)
{
rx51_i2c_init();
@ -1309,5 +1327,6 @@ void __init rx51_peripherals_init(void)
rx51_charger_init();
rx51_init_twl4030_hwmon();
rx51_init_omap3_rom_rng();
}

12
arch/arm/mach-omap2/board-rx51.c
View File

@ -2,6 +2,8 @@
* Board support file for Nokia N900 (aka RX-51).
*
* Copyright (C) 2007, 2008 Nokia
* Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
* Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -31,7 +33,9 @@
#include "mux.h"
#include "gpmc.h"
#include "pm.h"
#include "soc.h"
#include "sdram-nokia.h"
#include "omap-secure.h"
#define RX51_GPIO_SLEEP_IND 162
@ -103,6 +107,14 @@ static void __init rx51_init(void)
usb_musb_init(&musb_board_data);
rx51_peripherals_init();
if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
#ifdef CONFIG_ARM_ERRATA_430973
pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
/* set IBE to 1 */
rx51_secure_update_aux_cr(BIT(6), 0);
#endif
}
/* Ensure SDRC pins are mux'd for self-refresh */
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);

1
arch/arm/mach-omap2/cclock3xxx_data.c
View File

@ -3275,6 +3275,7 @@ static struct omap_clk omap36xx_clks[] = {
static struct omap_clk omap34xx_omap36xx_clks[] = {
CLK(NULL, "aes1_ick", &aes1_ick),
CLK("omap_rng", "ick", &rng_ick),
CLK("omap3-rom-rng", "ick", &rng_ick),
CLK(NULL, "sha11_ick", &sha11_ick),
CLK(NULL, "des1_ick", &des1_ick),
CLK(NULL, "cam_mclk", &cam_mclk),

10
arch/arm/mach-omap2/devices.c
View File

@ -37,6 +37,7 @@
#include "mux.h"
#include "control.h"
#include "devices.h"
#include "display.h"
#define L3_MODULES_MAX_LEN 12
#define L3_MODULES 3
@ -466,13 +467,13 @@ static struct platform_device omap_vout_device = {
.resource = &omap_vout_resource[0],
.id = -1,
};
static void omap_init_vout(void)
int __init omap_init_vout(void)
{
if (platform_device_register(&omap_vout_device) < 0)
printk(KERN_ERR "Unable to register OMAP-VOUT device\n");
return platform_device_register(&omap_vout_device);
}
#else
static inline void omap_init_vout(void) {}
int __init omap_init_vout(void) { return 0; }
#endif
#if IS_ENABLED(CONFIG_WL12XX)
@ -536,7 +537,6 @@ static int __init omap2_init_devices(void)
omap_init_wl12xx_of();
}
omap_init_sti();
omap_init_vout();
return 0;
}

28
arch/arm/mach-omap2/display.c
View File

@ -416,6 +416,34 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
}
}
/* create DRM device */
r = omap_init_drm();
if (r < 0) {
pr_err("Unable to register omapdrm device\n");
return r;
}
/* create vrfb device */
r = omap_init_vrfb();
if (r < 0) {
pr_err("Unable to register omapvrfb device\n");
return r;
}
/* create FB device */
r = omap_init_fb();
if (r < 0) {
pr_err("Unable to register omapfb device\n");
return r;
}
/* create V4L2 display device */
r = omap_init_vout();
if (r < 0) {
pr_err("Unable to register omap_vout device\n");
return r;
}
return 0;
}

4
arch/arm/mach-omap2/display.h
View File

@ -26,4 +26,8 @@ struct omap_dss_dispc_dev_attr {
bool has_framedonetv_irq;
};
int omap_init_drm(void);
int omap_init_vrfb(void);
int omap_init_fb(void);
int omap_init_vout(void);
#endif

24
arch/arm/mach-omap2/drm.c
View File

@ -26,10 +26,9 @@
#include <linux/platform_data/omap_drm.h>
#include "soc.h"
#include "omap_device.h"
#include "omap_hwmod.h"
#include "display.h"
#if defined(CONFIG_DRM_OMAP) || (CONFIG_DRM_OMAP_MODULE)
#if defined(CONFIG_DRM_OMAP) || defined(CONFIG_DRM_OMAP_MODULE)
static struct omap_drm_platform_data platform_data;
@ -42,26 +41,13 @@ static struct platform_device omap_drm_device = {
.id = 0,
};
static int __init omap_init_drm(void)
int __init omap_init_drm(void)
{
struct omap_hwmod *oh = NULL;
struct platform_device *pdev;
/* lookup and populate the DMM information, if present - OMAP4+ */
oh = omap_hwmod_lookup("dmm");
if (oh) {
pdev = omap_device_build(oh->name, -1, oh, NULL, 0);
WARN(IS_ERR(pdev), "Could not build omap_device for %s\n",
oh->name);
}
platform_data.omaprev = GET_OMAP_TYPE;
return platform_device_register(&omap_drm_device);
}
omap_arch_initcall(omap_init_drm);
#else
int __init omap_init_drm(void) { return 0; }
#endif

14
arch/arm/mach-omap2/fb.c
View File

@ -32,6 +32,7 @@
#include <asm/mach/map.h>
#include "soc.h"
#include "display.h"
#ifdef CONFIG_OMAP2_VRFB
@ -64,7 +65,7 @@ static const struct resource omap3_vrfb_resources[] = {
DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11"),
};
static int __init omap_init_vrfb(void)
int __init omap_init_vrfb(void)
{
struct platform_device *pdev;
const struct resource *res;
@ -85,8 +86,8 @@ static int __init omap_init_vrfb(void)
return PTR_RET(pdev);
}
omap_arch_initcall(omap_init_vrfb);
#else
int __init omap_init_vrfb(void) { return 0; }
#endif
#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
@ -105,11 +106,10 @@ static struct platform_device omap_fb_device = {
.num_resources = 0,
};
static int __init omap_init_fb(void)
int __init omap_init_fb(void)
{
return platform_device_register(&omap_fb_device);
}
omap_arch_initcall(omap_init_fb);
#else
int __init omap_init_fb(void) { return 0; }
#endif

76
arch/arm/mach-omap2/omap-secure.c
View File

@ -3,6 +3,8 @@
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Santosh Shilimkar <santosh.shilimkar@ti.com>
* Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
* Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
*
*
* This program is free software,you can redistribute it and/or modify
@ -70,3 +72,77 @@ phys_addr_t omap_secure_ram_mempool_base(void)
{
return omap_secure_memblock_base;
}
/**
* rx51_secure_dispatcher: Routine to dispatch secure PPA API calls
* @idx: The PPA API index
* @process: Process ID
* @flag: The flag indicating criticality of operation
* @nargs: Number of valid arguments out of four.
* @arg1, arg2, arg3 args4: Parameters passed to secure API
*
* Return the non-zero error value on failure.
*
* NOTE: rx51_secure_dispatcher differs from omap_secure_dispatcher because
* it calling omap_smc3() instead omap_smc2() and param[0] is nargs+1
*/
u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
u32 arg1, u32 arg2, u32 arg3, u32 arg4)
{
u32 ret;
u32 param[5];
param[0] = nargs+1; /* RX-51 needs number of arguments + 1 */
param[1] = arg1;
param[2] = arg2;
param[3] = arg3;
param[4] = arg4;
/*
* Secure API needs physical address
* pointer for the parameters
*/
local_irq_disable();
local_fiq_disable();
flush_cache_all();
outer_clean_range(__pa(param), __pa(param + 5));
ret = omap_smc3(idx, process, flag, __pa(param));
flush_cache_all();
local_fiq_enable();
local_irq_enable();
return ret;
}
/**
* rx51_secure_update_aux_cr: Routine to modify the contents of Auxiliary Control Register
* @set_bits: bits to set in ACR
* @clr_bits: bits to clear in ACR
*
* Return the non-zero error value on failure.
*/
u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits)
{
u32 acr;
/* Read ACR */
asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
acr &= ~clear_bits;
acr |= set_bits;
return rx51_secure_dispatcher(RX51_PPA_WRITE_ACR,
0,
FLAG_START_CRITICAL,
1, acr, 0, 0, 0);
}
/**
* rx51_secure_rng_call: Routine for HW random generator
*/
u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag)
{
return rx51_secure_dispatcher(RX51_PPA_HWRNG,
0,
NO_FLAG,
3, ptr, count, flag, 0);
}

13
arch/arm/mach-omap2/omap-secure.h
View File

@ -3,6 +3,8 @@
*
* Copyright (C) 2011 Texas Instruments, Inc.
* Santosh Shilimkar <santosh.shilimkar@ti.com>
* Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
* Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -46,14 +48,25 @@
#define OMAP4_PPA_L2_POR_INDEX 0x23
#define OMAP4_PPA_CPU_ACTRL_SMP_INDEX 0x25
/* Secure RX-51 PPA (Primary Protected Application) APIs */
#define RX51_PPA_HWRNG 29
#define RX51_PPA_L2_INVAL 40
#define RX51_PPA_WRITE_ACR 42
#ifndef __ASSEMBLER__
extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs,
u32 arg1, u32 arg2, u32 arg3, u32 arg4);
extern u32 omap_smc2(u32 id, u32 falg, u32 pargs);
extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs);
extern phys_addr_t omap_secure_ram_mempool_base(void);
extern int omap_secure_ram_reserve_memblock(void);
extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
u32 arg1, u32 arg2, u32 arg3, u32 arg4);
extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag);
#ifdef CONFIG_OMAP4_ERRATA_I688
extern int omap_barrier_reserve_memblock(void);
#else

21
arch/arm/mach-omap2/omap-smc.S
View File

@ -1,9 +1,11 @@
/*
* OMAP44xx secure APIs file.
* OMAP34xx and OMAP44xx secure APIs file.
*
* Copyright (C) 2010 Texas Instruments, Inc.
* Written by Santosh Shilimkar <santosh.shilimkar@ti.com>
*
* Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
* Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
*
* This program is free software,you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -54,6 +56,23 @@ ENTRY(omap_smc2)
ldmfd sp!, {r4-r12, pc}
ENDPROC(omap_smc2)
/**
* u32 omap_smc3(u32 service_id, u32 process_id, u32 flag, u32 pargs)
* Low level common routine for secure HAL and PPA APIs via smc #1
* r0 - @service_id: Secure Service ID
* r1 - @process_id: Process ID
* r2 - @flag: Flag to indicate the criticality of operation
* r3 - @pargs: Physical address of parameter list
*/
ENTRY(omap_smc3)
stmfd sp!, {r4-r11, lr}
mov r12, r0 @ Copy the secure service ID
mov r6, #0xff @ Indicate new Task call
dsb @ Memory Barrier (not sure if needed, copied from omap_smc2)
smc #1 @ Call PPA service
ldmfd sp!, {r4-r11, pc}
ENDPROC(omap_smc3)
ENTRY(omap_modify_auxcoreboot0)
stmfd sp!, {r1-r12, lr}
ldr r12, =0x104

11
arch/arm/mach-vexpress/tc2_pm.c
View File

@ -131,6 +131,16 @@ static void tc2_pm_down(u64 residency)
} else
BUG();
/*
* If the CPU is committed to power down, make sure
* the power controller will be in charge of waking it
* up upon IRQ, ie IRQ lines are cut from GIC CPU IF
* to the CPU by disabling the GIC CPU IF to prevent wfi
* from completing execution behind power controller back
*/
if (!skip_wfi)
gic_cpu_if_down();
if (last_man && __mcpm_outbound_enter_critical(cpu, cluster)) {
arch_spin_unlock(&tc2_pm_lock);
@ -231,7 +241,6 @@ static void tc2_pm_suspend(u64 residency)
cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
ve_spc_set_resume_addr(cluster, cpu, virt_to_phys(mcpm_entry_point));
gic_cpu_if_down();
tc2_pm_down(residency);
}

7
arch/arm64/Kconfig.debug
View File

@ -6,13 +6,6 @@ config FRAME_POINTER
bool
default y
config DEBUG_STACK_USAGE
bool "Enable stack utilization instrumentation"
depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T output.
config EARLY_PRINTK
bool "Early printk support"
default y

5
arch/arm64/configs/defconfig
View File

@ -42,7 +42,7 @@ CONFIG_IP_PNP_BOOTP=y
# CONFIG_WIRELESS is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
# CONFIG_BLK_DEV is not set
CONFIG_BLK_DEV=y
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
@ -72,6 +72,7 @@ CONFIG_LOGO=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_EXT4_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
# CONFIG_EXT3_FS_XATTR is not set
CONFIG_FUSE_FS=y
@ -90,3 +91,5 @@ CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_INFO=y
# CONFIG_FTRACE is not set
CONFIG_ATOMIC64_SELFTEST=y
CONFIG_VIRTIO_MMIO=y
CONFIG_VIRTIO_BLK=y

10
arch/arm64/include/asm/uaccess.h
View File

@ -166,9 +166,10 @@ do { \
#define get_user(x, ptr) \
({ \
__typeof__(*(ptr)) __user *__p = (ptr); \
might_fault(); \
access_ok(VERIFY_READ, (ptr), sizeof(*(ptr))) ? \
__get_user((x), (ptr)) : \
access_ok(VERIFY_READ, __p, sizeof(*__p)) ? \
__get_user((x), __p) : \
((x) = 0, -EFAULT); \
})
@ -227,9 +228,10 @@ do { \
#define put_user(x, ptr) \
({ \
__typeof__(*(ptr)) __user *__p = (ptr); \
might_fault(); \
access_ok(VERIFY_WRITE, (ptr), sizeof(*(ptr))) ? \
__put_user((x), (ptr)) : \
access_ok(VERIFY_WRITE, __p, sizeof(*__p)) ? \
__put_user((x), __p) : \
-EFAULT; \
})

2
arch/arm64/kernel/fpsimd.c
View File

@ -80,8 +80,10 @@ void fpsimd_thread_switch(struct task_struct *next)
void fpsimd_flush_thread(void)
{
preempt_disable();
memset(&current->thread.fpsimd_state, 0, sizeof(struct fpsimd_state));
fpsimd_load_state(&current->thread.fpsimd_state);
preempt_enable();
}
#ifdef CONFIG_KERNEL_MODE_NEON

2
arch/arm64/mm/tlb.S
View File

@ -35,7 +35,7 @@
*/
ENTRY(__cpu_flush_user_tlb_range)
vma_vm_mm x3, x2 // get vma->vm_mm
mmid x3, x3 // get vm_mm->context.id
mmid w3, x3 // get vm_mm->context.id
dsb sy
lsr x0, x0, #12 // align address
lsr x1, x1, #12

16
arch/avr32/include/asm/Kbuild
View File

@ -1,5 +1,19 @@
generic-y += clkdev.h
generic-y += cputime.h
generic-y += delay.h
generic-y += device.h
generic-y += div64.h
generic-y += emergency-restart.h
generic-y += exec.h
generic-y += trace_clock.h
generic-y += futex.h
generic-y += irq_regs.h
generic-y += param.h
generic-y += local.h
generic-y += local64.h
generic-y += percpu.h
generic-y += scatterlist.h
generic-y += sections.h
generic-y += topology.h
generic-y += trace_clock.h
generic-y += xor.h

6
arch/avr32/include/asm/cputime.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_CPUTIME_H
#define __ASM_AVR32_CPUTIME_H
#include <asm-generic/cputime.h>
#endif /* __ASM_AVR32_CPUTIME_H */

1
arch/avr32/include/asm/delay.h
View File

@ -1 +0,0 @@
#include <asm-generic/delay.h>

7
arch/avr32/include/asm/device.h
View File

@ -1,7 +0,0 @@
/*
* Arch specific extensions to struct device
*
* This file is released under the GPLv2
*/
#include <asm-generic/device.h>

6
arch/avr32/include/asm/div64.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_DIV64_H
#define __ASM_AVR32_DIV64_H
#include <asm-generic/div64.h>
#endif /* __ASM_AVR32_DIV64_H */

6
arch/avr32/include/asm/emergency-restart.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_EMERGENCY_RESTART_H
#define __ASM_AVR32_EMERGENCY_RESTART_H
#include <asm-generic/emergency-restart.h>
#endif /* __ASM_AVR32_EMERGENCY_RESTART_H */

6
arch/avr32/include/asm/futex.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_FUTEX_H
#define __ASM_AVR32_FUTEX_H
#include <asm-generic/futex.h>
#endif /* __ASM_AVR32_FUTEX_H */

1
arch/avr32/include/asm/irq_regs.h
View File

@ -1 +0,0 @@
#include <asm-generic/irq_regs.h>

6
arch/avr32/include/asm/local.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_LOCAL_H
#define __ASM_AVR32_LOCAL_H
#include <asm-generic/local.h>
#endif /* __ASM_AVR32_LOCAL_H */

1
arch/avr32/include/asm/local64.h
View File

@ -1 +0,0 @@
#include <asm-generic/local64.h>

6
arch/avr32/include/asm/percpu.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_PERCPU_H
#define __ASM_AVR32_PERCPU_H
#include <asm-generic/percpu.h>
#endif /* __ASM_AVR32_PERCPU_H */

6
arch/avr32/include/asm/scatterlist.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_SCATTERLIST_H
#define __ASM_AVR32_SCATTERLIST_H
#include <asm-generic/scatterlist.h>
#endif /* __ASM_AVR32_SCATTERLIST_H */

6
arch/avr32/include/asm/sections.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_SECTIONS_H
#define __ASM_AVR32_SECTIONS_H
#include <asm-generic/sections.h>
#endif /* __ASM_AVR32_SECTIONS_H */

6
arch/avr32/include/asm/topology.h
View File

@ -1,6 +0,0 @@
#ifndef __ASM_AVR32_TOPOLOGY_H
#define __ASM_AVR32_TOPOLOGY_H
#include <asm-generic/topology.h>
#endif /* __ASM_AVR32_TOPOLOGY_H */

6
arch/avr32/include/asm/xor.h
View File

@ -1,6 +0,0 @@
#ifndef _ASM_XOR_H
#define _ASM_XOR_H
#include <asm-generic/xor.h>
#endif

2
arch/avr32/kernel/process.c
View File

@ -289,7 +289,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
memset(childregs, 0, sizeof(struct pt_regs));
p->thread.cpu_context.r0 = arg;
p->thread.cpu_context.r1 = usp; /* fn */
p->thread.cpu_context.r2 = syscall_return;
p->thread.cpu_context.r2 = (unsigned long)syscall_return;
p->thread.cpu_context.pc = (unsigned long)ret_from_kernel_thread;
childregs->sr = MODE_SUPERVISOR;
} else {

9
arch/avr32/kernel/time.c
View File

@ -98,7 +98,14 @@ static void comparator_mode(enum clock_event_mode mode,
case CLOCK_EVT_MODE_SHUTDOWN:
sysreg_write(COMPARE, 0);
pr_debug("%s: stop\n", evdev->name);
cpu_idle_poll_ctrl(false);
if (evdev->mode == CLOCK_EVT_MODE_ONESHOT ||
evdev->mode == CLOCK_EVT_MODE_RESUME) {
/*
* Only disable idle poll if we have forced that
* in a previous call.
*/
cpu_idle_poll_ctrl(false);
}
break;
default:
BUG();

2
arch/mips/alchemy/board-mtx1.c
View File

@ -276,7 +276,7 @@ static struct platform_device mtx1_pci_host = {
.resource = alchemy_pci_host_res,
};
static struct __initdata platform_device * mtx1_devs[] = {
static struct platform_device *mtx1_devs[] __initdata = {
&mtx1_pci_host,
&mtx1_gpio_leds,
&mtx1_wdt,

2
arch/mips/include/asm/cpu-features.h
View File

@ -187,7 +187,7 @@
/*
* MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other
* pre-MIPS32/MIPS53 processors have CLO, CLZ. The IDT RC64574 is 64-bit and
* pre-MIPS32/MIPS64 processors have CLO, CLZ. The IDT RC64574 is 64-bit and
* has CLO and CLZ but not DCLO nor DCLZ. For 64-bit kernels
* cpu_has_clo_clz also indicates the availability of DCLO and DCLZ.
*/

2
arch/mips/mm/c-r4k.c
View File

@ -609,6 +609,7 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size)
r4k_blast_scache();
else
blast_scache_range(addr, addr + size);
preempt_enable();
__sync();
return;
}
@ -650,6 +651,7 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size)
*/
blast_inv_scache_range(addr, addr + size);
}
preempt_enable();
__sync();
return;
}

12
arch/mips/mm/dma-default.c
View File

@ -308,12 +308,10 @@ static void mips_dma_sync_sg_for_cpu(struct device *dev,
{
int i;
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (cpu_needs_post_dma_flush(dev))
if (cpu_needs_post_dma_flush(dev))
for (i = 0; i < nelems; i++, sg++)
__dma_sync(sg_page(sg), sg->offset, sg->length,
direction);
}
}
static void mips_dma_sync_sg_for_device(struct device *dev,
@ -321,12 +319,10 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
{
int i;
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (!plat_device_is_coherent(dev))
if (!plat_device_is_coherent(dev))
for (i = 0; i < nelems; i++, sg++)
__dma_sync(sg_page(sg), sg->offset, sg->length,
direction);
}
}
int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)

44
arch/openrisc/include/asm/prom.h
View File

@ -14,53 +14,9 @@
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
#ifndef _ASM_OPENRISC_PROM_H
#define _ASM_OPENRISC_PROM_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <asm/irq.h>
#include <linux/irqdomain.h>
#include <linux/atomic.h>
#include <linux/of_irq.h>
#include <linux/of_fdt.h>
#include <linux/of_address.h>
#include <linux/proc_fs.h>
#include <linux/platform_device.h>
#define HAVE_ARCH_DEVTREE_FIXUPS
/* Other Prototypes */
extern int early_uartlite_console(void);
/* Parse the ibm,dma-window property of an OF node into the busno, phys and
* size parameters.
*/
void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
unsigned long *busno, unsigned long *phys, unsigned long *size);
extern void kdump_move_device_tree(void);
/* Get the MAC address */
extern const void *of_get_mac_address(struct device_node *np);
/**
* of_irq_map_pci - Resolve the interrupt for a PCI device
* @pdev: the device whose interrupt is to be resolved
* @out_irq: structure of_irq filled by this function
*
* This function resolves the PCI interrupt for a given PCI device. If a
* device-node exists for a given pci_dev, it will use normal OF tree
* walking. If not, it will implement standard swizzling and walk up the
* PCI tree until an device-node is found, at which point it will finish
* resolving using the OF tree walking.
*/
struct pci_dev;
extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_OPENRISC_PROM_H */

5
arch/parisc/mm/fault.c
View File

@ -182,6 +182,9 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
if (user_mode(regs))
flags |= FAULT_FLAG_USER;
acc_type = parisc_acctyp(code, regs->iir);
if (acc_type & VM_WRITE)
flags |= FAULT_FLAG_WRITE;
retry:
@ -196,8 +199,6 @@ retry:
good_area:
acc_type = parisc_acctyp(code,regs->iir);
if ((vma->vm_flags & acc_type) != acc_type)
goto bad_area;

4
arch/powerpc/boot/Makefile
View File

@ -74,7 +74,7 @@ src-wlib-$(CONFIG_8xx) += mpc8xx.c planetcore.c
src-wlib-$(CONFIG_PPC_82xx) += pq2.c fsl-soc.c planetcore.c
src-wlib-$(CONFIG_EMBEDDED6xx) += mv64x60.c mv64x60_i2c.c ugecon.c
src-plat-y := of.c
src-plat-y := of.c epapr.c
src-plat-$(CONFIG_40x) += fixed-head.S ep405.c cuboot-hotfoot.c \
treeboot-walnut.c cuboot-acadia.c \
cuboot-kilauea.c simpleboot.c \
@ -97,7 +97,7 @@ src-plat-$(CONFIG_EMBEDDED6xx) += cuboot-pq2.c cuboot-mpc7448hpc2.c \
prpmc2800.c
src-plat-$(CONFIG_AMIGAONE) += cuboot-amigaone.c
src-plat-$(CONFIG_PPC_PS3) += ps3-head.S ps3-hvcall.S ps3.c
src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c
src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c
src-wlib := $(sort $(src-wlib-y))
src-plat := $(sort $(src-plat-y))

9
arch/powerpc/boot/epapr-wrapper.c Normal file
View File

@ -0,0 +1,9 @@
extern void epapr_platform_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6,
unsigned long r7);
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
epapr_platform_init(r3, r4, r5, r6, r7);
}

4
arch/powerpc/boot/epapr.c
View File

@ -48,8 +48,8 @@ static void platform_fixups(void)
fdt_addr, fdt_totalsize((void *)fdt_addr), ima_size);
}
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
void epapr_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
epapr_magic = r6;
ima_size = r7;

16
arch/powerpc/boot/of.c
View File

@ -26,6 +26,9 @@
static unsigned long claim_base;
void epapr_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7);
static void *of_try_claim(unsigned long size)
{
unsigned long addr = 0;
@ -61,7 +64,7 @@ static void of_image_hdr(const void *hdr)
}
}
void platform_init(unsigned long a1, unsigned long a2, void *promptr)
static void of_platform_init(unsigned long a1, unsigned long a2, void *promptr)
{
platform_ops.image_hdr = of_image_hdr;
platform_ops.malloc = of_try_claim;
@ -81,3 +84,14 @@ void platform_init(unsigned long a1, unsigned long a2, void *promptr)
loader_info.initrd_size = a2;
}
}
void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
/* Detect OF vs. ePAPR boot */
if (r5)
of_platform_init(r3, r4, (void *)r5);
else
epapr_platform_init(r3, r4, r5, r6, r7);
}

9
arch/powerpc/boot/wrapper
View File

@ -148,18 +148,18 @@ make_space=y
case "$platform" in
pseries)
platformo=$object/of.o
platformo="$object/of.o $object/epapr.o"
link_address='0x4000000'
;;
maple)
platformo=$object/of.o
platformo="$object/of.o $object/epapr.o"
link_address='0x400000'
;;
pmac|chrp)
platformo=$object/of.o
platformo="$object/of.o $object/epapr.o"
;;
coff)
platformo="$object/crt0.o $object/of.o"
platformo="$object/crt0.o $object/of.o $object/epapr.o"
lds=$object/zImage.coff.lds
link_address='0x500000'
pie=
@ -253,6 +253,7 @@ treeboot-iss4xx-mpic)
platformo="$object/treeboot-iss4xx.o"
;;
epapr)
platformo="$object/epapr.o $object/epapr-wrapper.o"
link_address='0x20000000'
pie=-pie
;;

4
arch/powerpc/include/asm/irq.h
View File

@ -69,9 +69,9 @@ extern struct thread_info *softirq_ctx[NR_CPUS];
extern void irq_ctx_init(void);
extern void call_do_softirq(struct thread_info *tp);
extern int call_handle_irq(int irq, void *p1,
struct thread_info *tp, void *func);
extern void call_do_irq(struct pt_regs *regs, struct thread_info *tp);
extern void do_IRQ(struct pt_regs *regs);
extern void __do_irq(struct pt_regs *regs);
int irq_choose_cpu(const struct cpumask *mask);

4
arch/powerpc/include/asm/processor.h
View File

@ -149,8 +149,6 @@ typedef struct {
struct thread_struct {
unsigned long ksp; /* Kernel stack pointer */
unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */
#ifdef CONFIG_PPC64
unsigned long ksp_vsid;
#endif
@ -162,6 +160,7 @@ struct thread_struct {
#endif
#ifdef CONFIG_PPC32
void *pgdir; /* root of page-table tree */
unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */
#endif
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
/*
@ -321,7 +320,6 @@ struct thread_struct {
#else
#define INIT_THREAD { \
.ksp = INIT_SP, \
.ksp_limit = INIT_SP_LIMIT, \
.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
.fs = KERNEL_DS, \
.fpr = {{0}}, \

3
arch/powerpc/kernel/asm-offsets.c
View File

@ -80,10 +80,11 @@ int main(void)
DEFINE(TASKTHREADPPR, offsetof(struct task_struct, thread.ppr));
#else
DEFINE(THREAD_INFO, offsetof(struct task_struct, stack));
DEFINE(THREAD_INFO_GAP, _ALIGN_UP(sizeof(struct thread_info), 16));
DEFINE(KSP_LIMIT, offsetof(struct thread_struct, ksp_limit));
#endif /* CONFIG_PPC64 */
DEFINE(KSP, offsetof(struct thread_struct, ksp));
DEFINE(KSP_LIMIT, offsetof(struct thread_struct, ksp_limit));
DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
#ifdef CONFIG_BOOKE
DEFINE(THREAD_NORMSAVES, offsetof(struct thread_struct, normsave[0]));

2
arch/powerpc/kernel/iommu.c
View File

@ -661,7 +661,7 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid)
/* number of bytes needed for the bitmap */
sz = BITS_TO_LONGS(tbl->it_size) * sizeof(unsigned long);
page = alloc_pages_node(nid, GFP_ATOMIC, get_order(sz));
page = alloc_pages_node(nid, GFP_KERNEL, get_order(sz));
if (!page)
panic("iommu_init_table: Can't allocate %ld bytes\n", sz);
tbl->it_map = page_address(page);

100
arch/powerpc/kernel/irq.c
View File

@ -441,50 +441,6 @@ void migrate_irqs(void)
}
#endif
static inline void handle_one_irq(unsigned int irq)
{
struct thread_info *curtp, *irqtp;
unsigned long saved_sp_limit;
struct irq_desc *desc;
desc = irq_to_desc(irq);
if (!desc)
return;
/* Switch to the irq stack to handle this */
curtp = current_thread_info();
irqtp = hardirq_ctx[smp_processor_id()];
if (curtp == irqtp) {
/* We're already on the irq stack, just handle it */
desc->handle_irq(irq, desc);
return;
}
saved_sp_limit = current->thread.ksp_limit;
irqtp->task = curtp->task;
irqtp->flags = 0;
/* Copy the softirq bits in preempt_count so that the
* softirq checks work in the hardirq context. */
irqtp->preempt_count = (irqtp->preempt_count & ~SOFTIRQ_MASK) |
(curtp->preempt_count & SOFTIRQ_MASK);
current->thread.ksp_limit = (unsigned long)irqtp +
_ALIGN_UP(sizeof(struct thread_info), 16);
call_handle_irq(irq, desc, irqtp, desc->handle_irq);
current->thread.ksp_limit = saved_sp_limit;
irqtp->task = NULL;
/* Set any flag that may have been set on the
* alternate stack
*/
if (irqtp->flags)
set_bits(irqtp->flags, &curtp->flags);
}
static inline void check_stack_overflow(void)
{
#ifdef CONFIG_DEBUG_STACKOVERFLOW
@ -501,9 +457,9 @@ static inline void check_stack_overflow(void)
#endif
}
void do_IRQ(struct pt_regs *regs)
void __do_irq(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
struct irq_desc *desc;
unsigned int irq;
irq_enter();
@ -519,18 +475,56 @@ void do_IRQ(struct pt_regs *regs)
*/
irq = ppc_md.get_irq();
/* We can hard enable interrupts now */
/* We can hard enable interrupts now to allow perf interrupts */
may_hard_irq_enable();
/* And finally process it */
if (irq != NO_IRQ)
handle_one_irq(irq);
else
if (unlikely(irq == NO_IRQ))
__get_cpu_var(irq_stat).spurious_irqs++;
else {
desc = irq_to_desc(irq);
if (likely(desc))
desc->handle_irq(irq, desc);
}
trace_irq_exit(regs);
irq_exit();
}
void do_IRQ(struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
struct thread_info *curtp, *irqtp;
/* Switch to the irq stack to handle this */
curtp = current_thread_info();
irqtp = hardirq_ctx[raw_smp_processor_id()];
/* Already there ? */
if (unlikely(curtp == irqtp)) {
__do_irq(regs);
set_irq_regs(old_regs);
return;
}
/* Prepare the thread_info in the irq stack */
irqtp->task = curtp->task;
irqtp->flags = 0;
/* Copy the preempt_count so that the [soft]irq checks work. */
irqtp->preempt_count = curtp->preempt_count;
/* Switch stack and call */
call_do_irq(regs, irqtp);
/* Restore stack limit */
irqtp->task = NULL;
/* Copy back updates to the thread_info */
if (irqtp->flags)
set_bits(irqtp->flags, &curtp->flags);
set_irq_regs(old_regs);
}
@ -592,28 +586,22 @@ void irq_ctx_init(void)
memset((void *)softirq_ctx[i], 0, THREAD_SIZE);
tp = softirq_ctx[i];
tp->cpu = i;
tp->preempt_count = 0;
memset((void *)hardirq_ctx[i], 0, THREAD_SIZE);
tp = hardirq_ctx[i];
tp->cpu = i;
tp->preempt_count = HARDIRQ_OFFSET;
}
}
static inline void do_softirq_onstack(void)
{
struct thread_info *curtp, *irqtp;
unsigned long saved_sp_limit = current->thread.ksp_limit;
curtp = current_thread_info();
irqtp = softirq_ctx[smp_processor_id()];
irqtp->task = curtp->task;
irqtp->flags = 0;
current->thread.ksp_limit = (unsigned long)irqtp +
_ALIGN_UP(sizeof(struct thread_info), 16);
call_do_softirq(irqtp);
current->thread.ksp_limit = saved_sp_limit;
irqtp->task = NULL;
/* Set any flag that may have been set on the

25
arch/powerpc/kernel/misc_32.S
View File

@ -36,26 +36,41 @@
.text
/*
* We store the saved ksp_limit in the unused part
* of the STACK_FRAME_OVERHEAD
*/
_GLOBAL(call_do_softirq)
mflr r0
stw r0,4(r1)
lwz r10,THREAD+KSP_LIMIT(r2)
addi r11,r3,THREAD_INFO_GAP
stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r3)
mr r1,r3
stw r10,8(r1)
stw r11,THREAD+KSP_LIMIT(r2)
bl __do_softirq
lwz r10,8(r1)
lwz r1,0(r1)
lwz r0,4(r1)
stw r10,THREAD+KSP_LIMIT(r2)
mtlr r0
blr
_GLOBAL(call_handle_irq)
_GLOBAL(call_do_irq)
mflr r0
stw r0,4(r1)
mtctr r6
stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r5)
mr r1,r5
bctrl
lwz r10,THREAD+KSP_LIMIT(r2)
addi r11,r3,THREAD_INFO_GAP
stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r4)
mr r1,r4
stw r10,8(r1)
stw r11,THREAD+KSP_LIMIT(r2)
bl __do_irq
lwz r10,8(r1)
lwz r1,0(r1)
lwz r0,4(r1)
stw r10,THREAD+KSP_LIMIT(r2)
mtlr r0
blr

10
arch/powerpc/kernel/misc_64.S
View File

@ -40,14 +40,12 @@ _GLOBAL(call_do_softirq)
mtlr r0
blr
_GLOBAL(call_handle_irq)
ld r8,0(r6)
_GLOBAL(call_do_irq)
mflr r0
std r0,16(r1)
mtctr r8
stdu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r5)
mr r1,r5
bctrl
stdu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r4)
mr r1,r4
bl .__do_irq
ld r1,0(r1)
ld r0,16(r1)
mtlr r0

3
arch/powerpc/kernel/process.c
View File

@ -1000,9 +1000,10 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
kregs = (struct pt_regs *) sp;
sp -= STACK_FRAME_OVERHEAD;
p->thread.ksp = sp;
#ifdef CONFIG_PPC32
p->thread.ksp_limit = (unsigned long)task_stack_page(p) +
_ALIGN_UP(sizeof(struct thread_info), 16);
#endif
#ifdef CONFIG_HAVE_HW_BREAKPOINT
p->thread.ptrace_bps[0] = NULL;
#endif

21
arch/powerpc/kernel/prom_init.c
View File

@ -196,6 +196,8 @@ static int __initdata mem_reserve_cnt;
static cell_t __initdata regbuf[1024];
static bool rtas_has_query_cpu_stopped;
/*
* Error results ... some OF calls will return "-1" on error, some
@ -1574,6 +1576,11 @@ static void __init prom_instantiate_rtas(void)
prom_setprop(rtas_node, "/rtas", "linux,rtas-entry",
&val, sizeof(val));
/* Check if it supports "query-cpu-stopped-state" */
if (prom_getprop(rtas_node, "query-cpu-stopped-state",
&val, sizeof(val)) != PROM_ERROR)
rtas_has_query_cpu_stopped = true;
#if defined(CONFIG_PPC_POWERNV) && defined(__BIG_ENDIAN__)
/* PowerVN takeover hack */
prom_rtas_data = base;
@ -1815,6 +1822,18 @@ static void __init prom_hold_cpus(void)
= (void *) LOW_ADDR(__secondary_hold_acknowledge);
unsigned long secondary_hold = LOW_ADDR(__secondary_hold);
/*
* On pseries, if RTAS supports "query-cpu-stopped-state",
* we skip this stage, the CPUs will be started by the
* kernel using RTAS.
*/
if ((of_platform == PLATFORM_PSERIES ||
of_platform == PLATFORM_PSERIES_LPAR) &&
rtas_has_query_cpu_stopped) {
prom_printf("prom_hold_cpus: skipped\n");
return;
}
prom_debug("prom_hold_cpus: start...\n");
prom_debug(" 1) spinloop = 0x%x\n", (unsigned long)spinloop);
prom_debug(" 1) *spinloop = 0x%x\n", *spinloop);
@ -3011,6 +3030,8 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
* On non-powermacs, put all CPUs in spin-loops.
*
* PowerMacs use a different mechanism to spin CPUs
*
* (This must be done after instanciating RTAS)
*/
if (of_platform != PLATFORM_POWERMAC &&
of_platform != PLATFORM_OPAL)

18
arch/powerpc/kernel/sysfs.c
View File

@ -17,6 +17,7 @@
#include <asm/machdep.h>
#include <asm/smp.h>
#include <asm/pmc.h>
#include <asm/firmware.h>
#include "cacheinfo.h"
@ -179,15 +180,25 @@ SYSFS_PMCSETUP(spurr, SPRN_SPURR);
SYSFS_PMCSETUP(dscr, SPRN_DSCR);
SYSFS_PMCSETUP(pir, SPRN_PIR);
/*
Lets only enable read for phyp resources and
enable write when needed with a separate function.
Lets be conservative and default to pseries.
*/
static DEVICE_ATTR(mmcra, 0600, show_mmcra, store_mmcra);
static DEVICE_ATTR(spurr, 0400, show_spurr, NULL);
static DEVICE_ATTR(dscr, 0600, show_dscr, store_dscr);
static DEVICE_ATTR(purr, 0600, show_purr, store_purr);
static DEVICE_ATTR(purr, 0400, show_purr, store_purr);
static DEVICE_ATTR(pir, 0400, show_pir, NULL);
unsigned long dscr_default = 0;
EXPORT_SYMBOL(dscr_default);
static void add_write_permission_dev_attr(struct device_attribute *attr)
{
attr->attr.mode |= 0200;
}
static ssize_t show_dscr_default(struct device *dev,
struct device_attribute *attr, char *buf)
{
@ -394,8 +405,11 @@ static void register_cpu_online(unsigned int cpu)
if (cpu_has_feature(CPU_FTR_MMCRA))
device_create_file(s, &dev_attr_mmcra);
if (cpu_has_feature(CPU_FTR_PURR))
if (cpu_has_feature(CPU_FTR_PURR)) {
if (!firmware_has_feature(FW_FEATURE_LPAR))
add_write_permission_dev_attr(&dev_attr_purr);
device_create_file(s, &dev_attr_purr);
}
if (cpu_has_feature(CPU_FTR_SPURR))
device_create_file(s, &dev_attr_spurr);

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