Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block into for-3.18
This is to receive 0a30288da1 ("blk-mq, percpu_ref: implement a
kludge for SCSI blk-mq stall during probe") which implements
__percpu_ref_kill_expedited() to work around SCSI blk-mq stall. The
commit reverted and patches to implement proper fix will be added.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>
hifive-unleashed-5.1
Tejun Heo
commit
d06efebf0c
|
|
@ -315,7 +315,7 @@ char *date;</synopsis>
|
|||
<function>drm_dev_unregister()</function> followed by a call to
|
||||
<function>drm_dev_unref()</function>.
|
||||
</para>
|
||||
!Edrivers/gpu/drm/drm_stub.c
|
||||
!Edrivers/gpu/drm/drm_drv.c
|
||||
</sect2>
|
||||
<sect2>
|
||||
<title>Driver Load</title>
|
||||
|
|
|
|||
|
|
@ -794,6 +794,7 @@ Greg Kroah-Hartman, "How to piss off a kernel subsystem maintainer".
|
|||
<http://www.kroah.com/log/linux/maintainer-03.html>
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||||
<http://www.kroah.com/log/linux/maintainer-04.html>
|
||||
<http://www.kroah.com/log/linux/maintainer-05.html>
|
||||
<http://www.kroah.com/log/linux/maintainer-06.html>
|
||||
|
||||
NO!!!! No more huge patch bombs to linux-kernel@vger.kernel.org people!
|
||||
<https://lkml.org/lkml/2005/7/11/336>
|
||||
|
|
|
|||
|
|
@ -16,9 +16,9 @@ Example:
|
|||
* DMA client
|
||||
|
||||
Required properties:
|
||||
- dmas: a list of <[DMA multiplexer phandle] [SRS/DRS value]> pairs,
|
||||
where SRS/DRS values are fixed handles, specified in the SoC
|
||||
manual as the value that would be written into the PDMACHCR.
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||||
- dmas: a list of <[DMA multiplexer phandle] [SRS << 8 | DRS]> pairs.
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||||
where SRS/DRS are specified in the SoC manual.
|
||||
It will be written into PDMACHCR as high 16-bit parts.
|
||||
- dma-names: a list of DMA channel names, one per "dmas" entry
|
||||
|
||||
Example:
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||||
|
|
|
|||
|
|
@ -11,10 +11,17 @@ Required properties:
|
|||
|
||||
Optional properties for main touchpad device:
|
||||
|
||||
- linux,gpio-keymap: An array of up to 4 entries indicating the Linux
|
||||
keycode generated by each GPIO. Linux keycodes are defined in
|
||||
- linux,gpio-keymap: When enabled, the SPT_GPIOPWN_T19 object sends messages
|
||||
on GPIO bit changes. An array of up to 8 entries can be provided
|
||||
indicating the Linux keycode mapped to each bit of the status byte,
|
||||
starting at the LSB. Linux keycodes are defined in
|
||||
<dt-bindings/input/input.h>.
|
||||
|
||||
Note: the numbering of the GPIOs and the bit they start at varies between
|
||||
maXTouch devices. You must either refer to the documentation, or
|
||||
experiment to determine which bit corresponds to which input. Use
|
||||
KEY_RESERVED for unused padding values.
|
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|
||||
Example:
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|
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touch@4b {
|
||||
|
|
|
|||
|
|
@ -4,11 +4,13 @@ Specifying interrupt information for devices
|
|||
1) Interrupt client nodes
|
||||
-------------------------
|
||||
|
||||
Nodes that describe devices which generate interrupts must contain an either an
|
||||
"interrupts" property or an "interrupts-extended" property. These properties
|
||||
contain a list of interrupt specifiers, one per output interrupt. The format of
|
||||
the interrupt specifier is determined by the interrupt controller to which the
|
||||
interrupts are routed; see section 2 below for details.
|
||||
Nodes that describe devices which generate interrupts must contain an
|
||||
"interrupts" property, an "interrupts-extended" property, or both. If both are
|
||||
present, the latter should take precedence; the former may be provided simply
|
||||
for compatibility with software that does not recognize the latter. These
|
||||
properties contain a list of interrupt specifiers, one per output interrupt. The
|
||||
format of the interrupt specifier is determined by the interrupt controller to
|
||||
which the interrupts are routed; see section 2 below for details.
|
||||
|
||||
Example:
|
||||
interrupt-parent = <&intc1>;
|
||||
|
|
|
|||
|
|
@ -0,0 +1,107 @@
|
|||
* Toshiba TC3589x multi-purpose expander
|
||||
|
||||
The Toshiba TC3589x series are I2C-based MFD devices which may expose the
|
||||
following built-in devices: gpio, keypad, rotator (vibrator), PWM (for
|
||||
e.g. LEDs or vibrators) The included models are:
|
||||
|
||||
- TC35890
|
||||
- TC35892
|
||||
- TC35893
|
||||
- TC35894
|
||||
- TC35895
|
||||
- TC35896
|
||||
|
||||
Required properties:
|
||||
- compatible : must be "toshiba,tc35890", "toshiba,tc35892", "toshiba,tc35893",
|
||||
"toshiba,tc35894", "toshiba,tc35895" or "toshiba,tc35896"
|
||||
- reg : I2C address of the device
|
||||
- interrupt-parent : specifies which IRQ controller we're connected to
|
||||
- interrupts : the interrupt on the parent the controller is connected to
|
||||
- interrupt-controller : marks the device node as an interrupt controller
|
||||
- #interrupt-cells : should be <1>, the first cell is the IRQ offset on this
|
||||
TC3589x interrupt controller.
|
||||
|
||||
Optional nodes:
|
||||
|
||||
- GPIO
|
||||
This GPIO module inside the TC3589x has 24 (TC35890, TC35892) or 20
|
||||
(other models) GPIO lines.
|
||||
- compatible : must be "toshiba,tc3589x-gpio"
|
||||
- interrupts : interrupt on the parent, which must be the tc3589x MFD device
|
||||
- interrupt-controller : marks the device node as an interrupt controller
|
||||
- #interrupt-cells : should be <2>, the first cell is the IRQ offset on this
|
||||
TC3589x GPIO interrupt controller, the second cell is the interrupt flags
|
||||
in accordance with <dt-bindings/interrupt-controller/irq.h>. The following
|
||||
flags are valid:
|
||||
- IRQ_TYPE_LEVEL_LOW
|
||||
- IRQ_TYPE_LEVEL_HIGH
|
||||
- IRQ_TYPE_EDGE_RISING
|
||||
- IRQ_TYPE_EDGE_FALLING
|
||||
- IRQ_TYPE_EDGE_BOTH
|
||||
- gpio-controller : marks the device node as a GPIO controller
|
||||
- #gpio-cells : should be <2>, the first cell is the GPIO offset on this
|
||||
GPIO controller, the second cell is the flags.
|
||||
|
||||
- Keypad
|
||||
This keypad is the same on all variants, supporting up to 96 different
|
||||
keys. The linux-specific properties are modeled on those already existing
|
||||
in other input drivers.
|
||||
- compatible : must be "toshiba,tc3589x-keypad"
|
||||
- debounce-delay-ms : debounce interval in milliseconds
|
||||
- keypad,num-rows : number of rows in the matrix, see
|
||||
bindings/input/matrix-keymap.txt
|
||||
- keypad,num-columns : number of columns in the matrix, see
|
||||
bindings/input/matrix-keymap.txt
|
||||
- linux,keymap: the definition can be found in
|
||||
bindings/input/matrix-keymap.txt
|
||||
- linux,no-autorepeat: do no enable autorepeat feature.
|
||||
- linux,wakeup: use any event on keypad as wakeup event.
|
||||
|
||||
Example:
|
||||
|
||||
tc35893@44 {
|
||||
compatible = "toshiba,tc35893";
|
||||
reg = <0x44>;
|
||||
interrupt-parent = <&gpio6>;
|
||||
interrupts = <26 IRQ_TYPE_EDGE_RISING>;
|
||||
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
|
||||
tc3589x_gpio {
|
||||
compatible = "toshiba,tc3589x-gpio";
|
||||
interrupts = <0>;
|
||||
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
};
|
||||
tc3589x_keypad {
|
||||
compatible = "toshiba,tc3589x-keypad";
|
||||
interrupts = <6>;
|
||||
debounce-delay-ms = <4>;
|
||||
keypad,num-columns = <8>;
|
||||
keypad,num-rows = <8>;
|
||||
linux,no-autorepeat;
|
||||
linux,wakeup;
|
||||
linux,keymap = <0x0301006b
|
||||
0x04010066
|
||||
0x06040072
|
||||
0x040200d7
|
||||
0x0303006a
|
||||
0x0205000e
|
||||
0x0607008b
|
||||
0x0500001c
|
||||
0x0403000b
|
||||
0x03040034
|
||||
0x05020067
|
||||
0x0305006c
|
||||
0x040500e7
|
||||
0x0005009e
|
||||
0x06020073
|
||||
0x01030039
|
||||
0x07060069
|
||||
0x050500d9>;
|
||||
};
|
||||
};
|
||||
|
|
@ -22,7 +22,7 @@ Optional properties:
|
|||
width of 8 is assumed.
|
||||
|
||||
- ti,nand-ecc-opt: A string setting the ECC layout to use. One of:
|
||||
"sw" <deprecated> use "ham1" instead
|
||||
"sw" 1-bit Hamming ecc code via software
|
||||
"hw" <deprecated> use "ham1" instead
|
||||
"hw-romcode" <deprecated> use "ham1" instead
|
||||
"ham1" 1-bit Hamming ecc code
|
||||
|
|
|
|||
|
|
@ -39,6 +39,10 @@ Optional properties:
|
|||
further clocks may be specified in derived bindings.
|
||||
- clock-names: One name for each entry in the clocks property, the
|
||||
first one should be "stmmaceth".
|
||||
- clk_ptp_ref: this is the PTP reference clock; in case of the PTP is
|
||||
available this clock is used for programming the Timestamp Addend Register.
|
||||
If not passed then the system clock will be used and this is fine on some
|
||||
platforms.
|
||||
|
||||
Examples:
|
||||
|
||||
|
|
|
|||
|
|
@ -2,6 +2,10 @@
|
|||
|
||||
Required properties:
|
||||
- compatible: should contain "snps,dw-pcie" to identify the core.
|
||||
- reg: Should contain the configuration address space.
|
||||
- reg-names: Must be "config" for the PCIe configuration space.
|
||||
(The old way of getting the configuration address space from "ranges"
|
||||
is deprecated and should be avoided.)
|
||||
- #address-cells: set to <3>
|
||||
- #size-cells: set to <2>
|
||||
- device_type: set to "pci"
|
||||
|
|
|
|||
|
|
@ -0,0 +1,59 @@
|
|||
TI PCI Controllers
|
||||
|
||||
PCIe Designware Controller
|
||||
- compatible: Should be "ti,dra7-pcie""
|
||||
- reg : Two register ranges as listed in the reg-names property
|
||||
- reg-names : The first entry must be "ti-conf" for the TI specific registers
|
||||
The second entry must be "rc-dbics" for the designware pcie
|
||||
registers
|
||||
The third entry must be "config" for the PCIe configuration space
|
||||
- phys : list of PHY specifiers (used by generic PHY framework)
|
||||
- phy-names : must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the
|
||||
number of PHYs as specified in *phys* property.
|
||||
- ti,hwmods : Name of the hwmod associated to the pcie, "pcie<X>",
|
||||
where <X> is the instance number of the pcie from the HW spec.
|
||||
- interrupts : Two interrupt entries must be specified. The first one is for
|
||||
main interrupt line and the second for MSI interrupt line.
|
||||
- #address-cells,
|
||||
#size-cells,
|
||||
#interrupt-cells,
|
||||
device_type,
|
||||
ranges,
|
||||
num-lanes,
|
||||
interrupt-map-mask,
|
||||
interrupt-map : as specified in ../designware-pcie.txt
|
||||
|
||||
Example:
|
||||
axi {
|
||||
compatible = "simple-bus";
|
||||
#size-cells = <1>;
|
||||
#address-cells = <1>;
|
||||
ranges = <0x51000000 0x51000000 0x3000
|
||||
0x0 0x20000000 0x10000000>;
|
||||
pcie@51000000 {
|
||||
compatible = "ti,dra7-pcie";
|
||||
reg = <0x51000000 0x2000>, <0x51002000 0x14c>, <0x1000 0x2000>;
|
||||
reg-names = "rc_dbics", "ti_conf", "config";
|
||||
interrupts = <0 232 0x4>, <0 233 0x4>;
|
||||
#address-cells = <3>;
|
||||
#size-cells = <2>;
|
||||
device_type = "pci";
|
||||
ranges = <0x81000000 0 0 0x03000 0 0x00010000
|
||||
0x82000000 0 0x20013000 0x13000 0 0xffed000>;
|
||||
#interrupt-cells = <1>;
|
||||
num-lanes = <1>;
|
||||
ti,hwmods = "pcie1";
|
||||
phys = <&pcie1_phy>;
|
||||
phy-names = "pcie-phy0";
|
||||
interrupt-map-mask = <0 0 0 7>;
|
||||
interrupt-map = <0 0 0 1 &pcie_intc 1>,
|
||||
<0 0 0 2 &pcie_intc 2>,
|
||||
<0 0 0 3 &pcie_intc 3>,
|
||||
<0 0 0 4 &pcie_intc 4>;
|
||||
pcie_intc: interrupt-controller {
|
||||
interrupt-controller;
|
||||
#address-cells = <0>;
|
||||
#interrupt-cells = <1>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
@ -62,7 +62,7 @@ Example:
|
|||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <2>;
|
||||
interrupts = <0 32 0x4>;
|
||||
interrupts = <0 16 0x4>;
|
||||
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&gsbi5_uart_default>;
|
||||
|
|
|
|||
|
|
@ -45,8 +45,8 @@ Example:
|
|||
infet5-supply = <&some_reg>;
|
||||
infet6-supply = <&some_reg>;
|
||||
infet7-supply = <&some_reg>;
|
||||
vsys_l1-supply = <&some_reg>;
|
||||
vsys_l2-supply = <&some_reg>;
|
||||
vsys-l1-supply = <&some_reg>;
|
||||
vsys-l2-supply = <&some_reg>;
|
||||
|
||||
regulators {
|
||||
dcdc1 {
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
ADI AXI-SPDIF controller
|
||||
|
||||
Required properties:
|
||||
- compatible : Must be "adi,axi-spdif-1.00.a"
|
||||
- compatible : Must be "adi,axi-spdif-tx-1.00.a"
|
||||
- reg : Must contain SPDIF core's registers location and length
|
||||
- clocks : Pairs of phandle and specifier referencing the controller's clocks.
|
||||
The controller expects two clocks, the clock used for the AXI interface and
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@ i2s@ff890000 {
|
|||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
dmas = <&pdma1 0>, <&pdma1 1>;
|
||||
dma-names = "rx", "tx";
|
||||
dma-names = "tx", "rx";
|
||||
clock-names = "i2s_hclk", "i2s_clk";
|
||||
clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -16,11 +16,15 @@ Required Properties:
|
|||
- clocks: Must contain an entry for each entry in clock-names.
|
||||
- clock-names: Shall be "spiclk" for the transfer-clock, and "apb_pclk" for
|
||||
the peripheral clock.
|
||||
- #address-cells: should be 1.
|
||||
- #size-cells: should be 0.
|
||||
|
||||
Optional Properties:
|
||||
|
||||
- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
|
||||
Documentation/devicetree/bindings/dma/dma.txt
|
||||
- dma-names: DMA request names should include "tx" and "rx" if present.
|
||||
- #address-cells: should be 1.
|
||||
- #size-cells: should be 0.
|
||||
|
||||
|
||||
Example:
|
||||
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@ Required properties:
|
|||
* "fsl,imx23-usbphy" for imx23 and imx28
|
||||
* "fsl,imx6q-usbphy" for imx6dq and imx6dl
|
||||
* "fsl,imx6sl-usbphy" for imx6sl
|
||||
* "fsl,imx6sx-usbphy" for imx6sx
|
||||
"fsl,imx23-usbphy" is still a fallback for other strings
|
||||
- reg: Should contain registers location and length
|
||||
- interrupts: Should contain phy interrupt
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@ Analog TV Connector
|
|||
===================
|
||||
|
||||
Required properties:
|
||||
- compatible: "composite-connector" or "svideo-connector"
|
||||
- compatible: "composite-video-connector" or "svideo-connector"
|
||||
|
||||
Optional properties:
|
||||
- label: a symbolic name for the connector
|
||||
|
|
@ -14,7 +14,7 @@ Example
|
|||
-------
|
||||
|
||||
tv: connector {
|
||||
compatible = "composite-connector";
|
||||
compatible = "composite-video-connector";
|
||||
label = "tv";
|
||||
|
||||
port {
|
||||
|
|
|
|||
|
|
@ -56,10 +56,10 @@ The dma_buf buffer sharing API usage contains the following steps:
|
|||
size_t size, int flags,
|
||||
const char *exp_name)
|
||||
|
||||
If this succeeds, dma_buf_export allocates a dma_buf structure, and returns a
|
||||
pointer to the same. It also associates an anonymous file with this buffer,
|
||||
so it can be exported. On failure to allocate the dma_buf object, it returns
|
||||
NULL.
|
||||
If this succeeds, dma_buf_export_named allocates a dma_buf structure, and
|
||||
returns a pointer to the same. It also associates an anonymous file with this
|
||||
buffer, so it can be exported. On failure to allocate the dma_buf object,
|
||||
it returns NULL.
|
||||
|
||||
'exp_name' is the name of exporter - to facilitate information while
|
||||
debugging.
|
||||
|
|
@ -76,7 +76,7 @@ The dma_buf buffer sharing API usage contains the following steps:
|
|||
drivers and/or processes.
|
||||
|
||||
Interface:
|
||||
int dma_buf_fd(struct dma_buf *dmabuf)
|
||||
int dma_buf_fd(struct dma_buf *dmabuf, int flags)
|
||||
|
||||
This API installs an fd for the anonymous file associated with this buffer;
|
||||
returns either 'fd', or error.
|
||||
|
|
@ -157,7 +157,9 @@ to request use of buffer for allocation.
|
|||
"dma_buf->ops->" indirection from the users of this interface.
|
||||
|
||||
In struct dma_buf_ops, unmap_dma_buf is defined as
|
||||
void (*unmap_dma_buf)(struct dma_buf_attachment *, struct sg_table *);
|
||||
void (*unmap_dma_buf)(struct dma_buf_attachment *,
|
||||
struct sg_table *,
|
||||
enum dma_data_direction);
|
||||
|
||||
unmap_dma_buf signifies the end-of-DMA for the attachment provided. Like
|
||||
map_dma_buf, this API also must be implemented by the exporter.
|
||||
|
|
|
|||
|
|
@ -349,7 +349,11 @@ prototypes:
|
|||
locking rules:
|
||||
inode->i_lock may block
|
||||
fl_copy_lock: yes no
|
||||
fl_release_private: maybe no
|
||||
fl_release_private: maybe maybe[1]
|
||||
|
||||
[1]: ->fl_release_private for flock or POSIX locks is currently allowed
|
||||
to block. Leases however can still be freed while the i_lock is held and
|
||||
so fl_release_private called on a lease should not block.
|
||||
|
||||
----------------------- lock_manager_operations ---------------------------
|
||||
prototypes:
|
||||
|
|
|
|||
|
|
@ -138,9 +138,9 @@ Installation
|
|||
- Build, install, reboot
|
||||
|
||||
The NFS/RDMA code will be enabled automatically if NFS and RDMA
|
||||
are turned on. The NFS/RDMA client and server are configured via the hidden
|
||||
SUNRPC_XPRT_RDMA config option that depends on SUNRPC and INFINIBAND. The
|
||||
value of SUNRPC_XPRT_RDMA will be:
|
||||
are turned on. The NFS/RDMA client and server are configured via the
|
||||
SUNRPC_XPRT_RDMA_CLIENT and SUNRPC_XPRT_RDMA_SERVER config options that both
|
||||
depend on SUNRPC and INFINIBAND. The default value of both options will be:
|
||||
|
||||
- N if either SUNRPC or INFINIBAND are N, in this case the NFS/RDMA client
|
||||
and server will not be built
|
||||
|
|
@ -235,8 +235,9 @@ NFS/RDMA Setup
|
|||
|
||||
- Start the NFS server
|
||||
|
||||
If the NFS/RDMA server was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
|
||||
kernel config), load the RDMA transport module:
|
||||
If the NFS/RDMA server was built as a module
|
||||
(CONFIG_SUNRPC_XPRT_RDMA_SERVER=m in kernel config), load the RDMA
|
||||
transport module:
|
||||
|
||||
$ modprobe svcrdma
|
||||
|
||||
|
|
@ -255,8 +256,9 @@ NFS/RDMA Setup
|
|||
|
||||
- On the client system
|
||||
|
||||
If the NFS/RDMA client was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
|
||||
kernel config), load the RDMA client module:
|
||||
If the NFS/RDMA client was built as a module
|
||||
(CONFIG_SUNRPC_XPRT_RDMA_CLIENT=m in kernel config), load the RDMA client
|
||||
module:
|
||||
|
||||
$ modprobe xprtrdma.ko
|
||||
|
||||
|
|
|
|||
|
|
@ -235,6 +235,39 @@ be used for more than one file, you can store an arbitrary pointer in the
|
|||
private field of the seq_file structure; that value can then be retrieved
|
||||
by the iterator functions.
|
||||
|
||||
There is also a wrapper function to seq_open() called seq_open_private(). It
|
||||
kmallocs a zero filled block of memory and stores a pointer to it in the
|
||||
private field of the seq_file structure, returning 0 on success. The
|
||||
block size is specified in a third parameter to the function, e.g.:
|
||||
|
||||
static int ct_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
return seq_open_private(file, &ct_seq_ops,
|
||||
sizeof(struct mystruct));
|
||||
}
|
||||
|
||||
There is also a variant function, __seq_open_private(), which is functionally
|
||||
identical except that, if successful, it returns the pointer to the allocated
|
||||
memory block, allowing further initialisation e.g.:
|
||||
|
||||
static int ct_open(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct mystruct *p =
|
||||
__seq_open_private(file, &ct_seq_ops, sizeof(*p));
|
||||
|
||||
if (!p)
|
||||
return -ENOMEM;
|
||||
|
||||
p->foo = bar; /* initialize my stuff */
|
||||
...
|
||||
p->baz = true;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
A corresponding close function, seq_release_private() is available which
|
||||
frees the memory allocated in the corresponding open.
|
||||
|
||||
The other operations of interest - read(), llseek(), and release() - are
|
||||
all implemented by the seq_file code itself. So a virtual file's
|
||||
file_operations structure will look like:
|
||||
|
|
|
|||
|
|
@ -53,7 +53,20 @@ with IS_ERR() (they will never return a NULL pointer). -ENOENT will be returned
|
|||
if and only if no GPIO has been assigned to the device/function/index triplet,
|
||||
other error codes are used for cases where a GPIO has been assigned but an error
|
||||
occurred while trying to acquire it. This is useful to discriminate between mere
|
||||
errors and an absence of GPIO for optional GPIO parameters.
|
||||
errors and an absence of GPIO for optional GPIO parameters. For the common
|
||||
pattern where a GPIO is optional, the gpiod_get_optional() and
|
||||
gpiod_get_index_optional() functions can be used. These functions return NULL
|
||||
instead of -ENOENT if no GPIO has been assigned to the requested function:
|
||||
|
||||
|
||||
struct gpio_desc *gpiod_get_optional(struct device *dev,
|
||||
const char *con_id,
|
||||
enum gpiod_flags flags)
|
||||
|
||||
struct gpio_desc *gpiod_get_index_optional(struct device *dev,
|
||||
const char *con_id,
|
||||
unsigned int index,
|
||||
enum gpiod_flags flags)
|
||||
|
||||
Device-managed variants of these functions are also defined:
|
||||
|
||||
|
|
@ -65,6 +78,15 @@ Device-managed variants of these functions are also defined:
|
|||
unsigned int idx,
|
||||
enum gpiod_flags flags)
|
||||
|
||||
struct gpio_desc *devm_gpiod_get_optional(struct device *dev,
|
||||
const char *con_id,
|
||||
enum gpiod_flags flags)
|
||||
|
||||
struct gpio_desc * devm_gpiod_get_index_optional(struct device *dev,
|
||||
const char *con_id,
|
||||
unsigned int index,
|
||||
enum gpiod_flags flags)
|
||||
|
||||
A GPIO descriptor can be disposed of using the gpiod_put() function:
|
||||
|
||||
void gpiod_put(struct gpio_desc *desc)
|
||||
|
|
|
|||
|
|
@ -57,12 +57,12 @@ Well, you are all set up now. You can now use SMBus commands or plain
|
|||
I2C to communicate with your device. SMBus commands are preferred if
|
||||
the device supports them. Both are illustrated below.
|
||||
|
||||
__u8 register = 0x10; /* Device register to access */
|
||||
__u8 reg = 0x10; /* Device register to access */
|
||||
__s32 res;
|
||||
char buf[10];
|
||||
|
||||
/* Using SMBus commands */
|
||||
res = i2c_smbus_read_word_data(file, register);
|
||||
res = i2c_smbus_read_word_data(file, reg);
|
||||
if (res < 0) {
|
||||
/* ERROR HANDLING: i2c transaction failed */
|
||||
} else {
|
||||
|
|
@ -70,11 +70,11 @@ the device supports them. Both are illustrated below.
|
|||
}
|
||||
|
||||
/* Using I2C Write, equivalent of
|
||||
i2c_smbus_write_word_data(file, register, 0x6543) */
|
||||
buf[0] = register;
|
||||
i2c_smbus_write_word_data(file, reg, 0x6543) */
|
||||
buf[0] = reg;
|
||||
buf[1] = 0x43;
|
||||
buf[2] = 0x65;
|
||||
if (write(file, buf, 3) ! =3) {
|
||||
if (write(file, buf, 3) != 3) {
|
||||
/* ERROR HANDLING: i2c transaction failed */
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -18,7 +18,7 @@ memory image to a dump file on the local disk, or across the network to
|
|||
a remote system.
|
||||
|
||||
Kdump and kexec are currently supported on the x86, x86_64, ppc64, ia64,
|
||||
and s390x architectures.
|
||||
s390x and arm architectures.
|
||||
|
||||
When the system kernel boots, it reserves a small section of memory for
|
||||
the dump-capture kernel. This ensures that ongoing Direct Memory Access
|
||||
|
|
@ -112,7 +112,7 @@ There are two possible methods of using Kdump.
|
|||
2) Or use the system kernel binary itself as dump-capture kernel and there is
|
||||
no need to build a separate dump-capture kernel. This is possible
|
||||
only with the architectures which support a relocatable kernel. As
|
||||
of today, i386, x86_64, ppc64 and ia64 architectures support relocatable
|
||||
of today, i386, x86_64, ppc64, ia64 and arm architectures support relocatable
|
||||
kernel.
|
||||
|
||||
Building a relocatable kernel is advantageous from the point of view that
|
||||
|
|
@ -241,6 +241,13 @@ Dump-capture kernel config options (Arch Dependent, ia64)
|
|||
kernel will be aligned to 64Mb, so if the start address is not then
|
||||
any space below the alignment point will be wasted.
|
||||
|
||||
Dump-capture kernel config options (Arch Dependent, arm)
|
||||
----------------------------------------------------------
|
||||
|
||||
- To use a relocatable kernel,
|
||||
Enable "AUTO_ZRELADDR" support under "Boot" options:
|
||||
|
||||
AUTO_ZRELADDR=y
|
||||
|
||||
Extended crashkernel syntax
|
||||
===========================
|
||||
|
|
@ -256,6 +263,10 @@ The syntax is:
|
|||
crashkernel=<range1>:<size1>[,<range2>:<size2>,...][@offset]
|
||||
range=start-[end]
|
||||
|
||||
Please note, on arm, the offset is required.
|
||||
crashkernel=<range1>:<size1>[,<range2>:<size2>,...]@offset
|
||||
range=start-[end]
|
||||
|
||||
'start' is inclusive and 'end' is exclusive.
|
||||
|
||||
For example:
|
||||
|
|
@ -296,6 +307,12 @@ Boot into System Kernel
|
|||
on the memory consumption of the kdump system. In general this is not
|
||||
dependent on the memory size of the production system.
|
||||
|
||||
On arm, use "crashkernel=Y@X". Note that the start address of the kernel
|
||||
will be aligned to 128MiB (0x08000000), so if the start address is not then
|
||||
any space below the alignment point may be overwritten by the dump-capture kernel,
|
||||
which means it is possible that the vmcore is not that precise as expected.
|
||||
|
||||
|
||||
Load the Dump-capture Kernel
|
||||
============================
|
||||
|
||||
|
|
@ -315,7 +332,8 @@ For ia64:
|
|||
- Use vmlinux or vmlinuz.gz
|
||||
For s390x:
|
||||
- Use image or bzImage
|
||||
|
||||
For arm:
|
||||
- Use zImage
|
||||
|
||||
If you are using a uncompressed vmlinux image then use following command
|
||||
to load dump-capture kernel.
|
||||
|
|
@ -331,6 +349,15 @@ to load dump-capture kernel.
|
|||
--initrd=<initrd-for-dump-capture-kernel> \
|
||||
--append="root=<root-dev> <arch-specific-options>"
|
||||
|
||||
If you are using a compressed zImage, then use following command
|
||||
to load dump-capture kernel.
|
||||
|
||||
kexec --type zImage -p <dump-capture-kernel-bzImage> \
|
||||
--initrd=<initrd-for-dump-capture-kernel> \
|
||||
--dtb=<dtb-for-dump-capture-kernel> \
|
||||
--append="root=<root-dev> <arch-specific-options>"
|
||||
|
||||
|
||||
Please note, that --args-linux does not need to be specified for ia64.
|
||||
It is planned to make this a no-op on that architecture, but for now
|
||||
it should be omitted
|
||||
|
|
@ -347,6 +374,9 @@ For ppc64:
|
|||
For s390x:
|
||||
"1 maxcpus=1 cgroup_disable=memory"
|
||||
|
||||
For arm:
|
||||
"1 maxcpus=1 reset_devices"
|
||||
|
||||
Notes on loading the dump-capture kernel:
|
||||
|
||||
* By default, the ELF headers are stored in ELF64 format to support
|
||||
|
|
|
|||
|
|
@ -3541,6 +3541,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
|
|||
bogus residue values);
|
||||
s = SINGLE_LUN (the device has only one
|
||||
Logical Unit);
|
||||
u = IGNORE_UAS (don't bind to the uas driver);
|
||||
w = NO_WP_DETECT (don't test whether the
|
||||
medium is write-protected).
|
||||
Example: quirks=0419:aaf5:rl,0421:0433:rc
|
||||
|
|
|
|||
|
|
@ -18,3 +18,5 @@ sonypi.txt
|
|||
- info on Linux Sony Programmable I/O Device support.
|
||||
thinkpad-acpi.txt
|
||||
- information on the (IBM and Lenovo) ThinkPad ACPI Extras driver.
|
||||
toshiba_haps.txt
|
||||
- information on the Toshiba HDD Active Protection Sensor driver.
|
||||
|
|
|
|||
|
|
@ -0,0 +1,76 @@
|
|||
Kernel driver toshiba_haps
|
||||
Toshiba HDD Active Protection Sensor
|
||||
====================================
|
||||
|
||||
Author: Azael Avalos <coproscefalo@gmail.com>
|
||||
|
||||
|
||||
0. Contents
|
||||
-----------
|
||||
|
||||
1. Description
|
||||
2. Interface
|
||||
3. Accelerometer axes
|
||||
4. Supported devices
|
||||
5. Usage
|
||||
|
||||
|
||||
1. Description
|
||||
--------------
|
||||
|
||||
This driver provides support for the accelerometer found in various Toshiba
|
||||
laptops, being called "Toshiba HDD Protection - Shock Sensor" officialy,
|
||||
and detects laptops automatically with this device.
|
||||
On Windows, Toshiba provided software monitors this device and provides
|
||||
automatic HDD protection (head unload) on sudden moves or harsh vibrations,
|
||||
however, this driver only provides a notification via a sysfs file to let
|
||||
userspace tools or daemons act accordingly, as well as providing a sysfs
|
||||
file to set the desired protection level or sensor sensibility.
|
||||
|
||||
|
||||
2. Interface
|
||||
------------
|
||||
|
||||
This device comes with 3 methods:
|
||||
_STA - Checks existence of the device, returning Zero if the device does not
|
||||
exists or is not supported.
|
||||
PTLV - Sets the desired protection level.
|
||||
RSSS - Shuts down the HDD protection interface for a few seconds,
|
||||
then restores normal operation.
|
||||
|
||||
Note:
|
||||
The presence of Solid State Drives (SSD) can make this driver to fail loading,
|
||||
given the fact that such drives have no movable parts, and thus, not requiring
|
||||
any "protection" as well as failing during the evaluation of the _STA method
|
||||
found under this device.
|
||||
|
||||
|
||||
3. Accelerometer axes
|
||||
---------------------
|
||||
|
||||
This device does not report any axes, however, to query the sensor position
|
||||
a couple HCI (Hardware Configuration Interface) calls (0x6D and 0xA6) are
|
||||
provided to query such information, handled by the kernel module toshiba_acpi
|
||||
since kernel version 3.15.
|
||||
|
||||
|
||||
4. Supported devices
|
||||
--------------------
|
||||
|
||||
This driver binds itself to the ACPI device TOS620A, and any Toshiba laptop
|
||||
with this device is supported, given the fact that they have the presence of
|
||||
conventional HDD and not only SSD, or a combination of both HDD and SSD.
|
||||
|
||||
|
||||
5. Usage
|
||||
--------
|
||||
|
||||
The sysfs files under /sys/devices/LNXSYSTM:00/LNXSYBUS:00/TOS620A:00/ are:
|
||||
protection_level - The protection_level is readable and writeable, and
|
||||
provides a way to let userspace query the current protection
|
||||
level, as well as set the desired protection level, the
|
||||
available protection levels are:
|
||||
0 - Disabled | 1 - Low | 2 - Medium | 3 - High
|
||||
reset_protection - The reset_protection entry is writeable only, being "1"
|
||||
the only parameter it accepts, it is used to trigger
|
||||
a reset of the protection interface.
|
||||
|
|
@ -59,7 +59,7 @@ acts similar to /dev/rtc and reacts on free-fall interrupts received
|
|||
from the device. It supports blocking operations, poll/select and
|
||||
fasync operation modes. You must read 1 bytes from the device. The
|
||||
result is number of free-fall interrupts since the last successful
|
||||
read (or 255 if number of interrupts would not fit). See the hpfall.c
|
||||
read (or 255 if number of interrupts would not fit). See the freefall.c
|
||||
file for an example on using the device.
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -462,9 +462,9 @@ JIT compiler
|
|||
------------
|
||||
|
||||
The Linux kernel has a built-in BPF JIT compiler for x86_64, SPARC, PowerPC,
|
||||
ARM and s390 and can be enabled through CONFIG_BPF_JIT. The JIT compiler is
|
||||
transparently invoked for each attached filter from user space or for internal
|
||||
kernel users if it has been previously enabled by root:
|
||||
ARM, MIPS and s390 and can be enabled through CONFIG_BPF_JIT. The JIT compiler
|
||||
is transparently invoked for each attached filter from user space or for
|
||||
internal kernel users if it has been previously enabled by root:
|
||||
|
||||
echo 1 > /proc/sys/net/core/bpf_jit_enable
|
||||
|
||||
|
|
|
|||
|
|
@ -143,8 +143,9 @@ This will cause the core to recalculate the total load on the regulator (based
|
|||
on all its consumers) and change operating mode (if necessary and permitted)
|
||||
to best match the current operating load.
|
||||
|
||||
The load_uA value can be determined from the consumers datasheet. e.g.most
|
||||
datasheets have tables showing the max current consumed in certain situations.
|
||||
The load_uA value can be determined from the consumer's datasheet. e.g. most
|
||||
datasheets have tables showing the maximum current consumed in certain
|
||||
situations.
|
||||
|
||||
Most consumers will use indirect operating mode control since they have no
|
||||
knowledge of the regulator or whether the regulator is shared with other
|
||||
|
|
@ -173,7 +174,7 @@ Consumers can register interest in regulator events by calling :-
|
|||
int regulator_register_notifier(struct regulator *regulator,
|
||||
struct notifier_block *nb);
|
||||
|
||||
Consumers can uregister interest by calling :-
|
||||
Consumers can unregister interest by calling :-
|
||||
|
||||
int regulator_unregister_notifier(struct regulator *regulator,
|
||||
struct notifier_block *nb);
|
||||
|
|
|
|||
|
|
@ -9,14 +9,14 @@ Safety
|
|||
|
||||
- Errors in regulator configuration can have very serious consequences
|
||||
for the system, potentially including lasting hardware damage.
|
||||
- It is not possible to automatically determine the power confugration
|
||||
- It is not possible to automatically determine the power configuration
|
||||
of the system - software-equivalent variants of the same chip may
|
||||
have different power requirments, and not all components with power
|
||||
have different power requirements, and not all components with power
|
||||
requirements are visible to software.
|
||||
|
||||
=> The API should make no changes to the hardware state unless it has
|
||||
specific knowledge that these changes are safe to do perform on
|
||||
this particular system.
|
||||
specific knowledge that these changes are safe to perform on this
|
||||
particular system.
|
||||
|
||||
Consumer use cases
|
||||
------------------
|
||||
|
|
|
|||
|
|
@ -11,7 +11,7 @@ Consider the following machine :-
|
|||
+-> [Consumer B @ 3.3V]
|
||||
|
||||
The drivers for consumers A & B must be mapped to the correct regulator in
|
||||
order to control their power supply. This mapping can be achieved in machine
|
||||
order to control their power supplies. This mapping can be achieved in machine
|
||||
initialisation code by creating a struct regulator_consumer_supply for
|
||||
each regulator.
|
||||
|
||||
|
|
@ -39,7 +39,7 @@ to the 'Vcc' supply for Consumer A.
|
|||
|
||||
Constraints can now be registered by defining a struct regulator_init_data
|
||||
for each regulator power domain. This structure also maps the consumers
|
||||
to their supply regulator :-
|
||||
to their supply regulators :-
|
||||
|
||||
static struct regulator_init_data regulator1_data = {
|
||||
.constraints = {
|
||||
|
|
|
|||
|
|
@ -36,11 +36,11 @@ Some terms used in this document:-
|
|||
Consumers can be classified into two types:-
|
||||
|
||||
Static: consumer does not change its supply voltage or
|
||||
current limit. It only needs to enable or disable it's
|
||||
current limit. It only needs to enable or disable its
|
||||
power supply. Its supply voltage is set by the hardware,
|
||||
bootloader, firmware or kernel board initialisation code.
|
||||
|
||||
Dynamic: consumer needs to change it's supply voltage or
|
||||
Dynamic: consumer needs to change its supply voltage or
|
||||
current limit to meet operation demands.
|
||||
|
||||
|
||||
|
|
@ -156,7 +156,7 @@ relevant to non SoC devices and is split into the following four interfaces:-
|
|||
This interface is for machine specific code and allows the creation of
|
||||
voltage/current domains (with constraints) for each regulator. It can
|
||||
provide regulator constraints that will prevent device damage through
|
||||
overvoltage or over current caused by buggy client drivers. It also
|
||||
overvoltage or overcurrent caused by buggy client drivers. It also
|
||||
allows the creation of a regulator tree whereby some regulators are
|
||||
supplied by others (similar to a clock tree).
|
||||
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@ Drivers can register a regulator by calling :-
|
|||
struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
|
||||
const struct regulator_config *config);
|
||||
|
||||
This will register the regulators capabilities and operations to the regulator
|
||||
This will register the regulator's capabilities and operations to the regulator
|
||||
core.
|
||||
|
||||
Regulators can be unregistered by calling :-
|
||||
|
|
@ -23,8 +23,8 @@ void regulator_unregister(struct regulator_dev *rdev);
|
|||
|
||||
Regulator Events
|
||||
================
|
||||
Regulators can send events (e.g. over temp, under voltage, etc) to consumer
|
||||
drivers by calling :-
|
||||
Regulators can send events (e.g. overtemperature, undervoltage, etc) to
|
||||
consumer drivers by calling :-
|
||||
|
||||
int regulator_notifier_call_chain(struct regulator_dev *rdev,
|
||||
unsigned long event, void *data);
|
||||
|
|
|
|||
|
|
@ -2,26 +2,26 @@ this_cpu operations
|
|||
-------------------
|
||||
|
||||
this_cpu operations are a way of optimizing access to per cpu
|
||||
variables associated with the *currently* executing processor through
|
||||
the use of segment registers (or a dedicated register where the cpu
|
||||
permanently stored the beginning of the per cpu area for a specific
|
||||
processor).
|
||||
variables associated with the *currently* executing processor. This is
|
||||
done through the use of segment registers (or a dedicated register where
|
||||
the cpu permanently stored the beginning of the per cpu area for a
|
||||
specific processor).
|
||||
|
||||
The this_cpu operations add a per cpu variable offset to the processor
|
||||
specific percpu base and encode that operation in the instruction
|
||||
this_cpu operations add a per cpu variable offset to the processor
|
||||
specific per cpu base and encode that operation in the instruction
|
||||
operating on the per cpu variable.
|
||||
|
||||
This means there are no atomicity issues between the calculation of
|
||||
This means that there are no atomicity issues between the calculation of
|
||||
the offset and the operation on the data. Therefore it is not
|
||||
necessary to disable preempt or interrupts to ensure that the
|
||||
necessary to disable preemption or interrupts to ensure that the
|
||||
processor is not changed between the calculation of the address and
|
||||
the operation on the data.
|
||||
|
||||
Read-modify-write operations are of particular interest. Frequently
|
||||
processors have special lower latency instructions that can operate
|
||||
without the typical synchronization overhead but still provide some
|
||||
sort of relaxed atomicity guarantee. The x86 for example can execute
|
||||
RMV (Read Modify Write) instructions like inc/dec/cmpxchg without the
|
||||
without the typical synchronization overhead, but still provide some
|
||||
sort of relaxed atomicity guarantees. The x86, for example, can execute
|
||||
RMW (Read Modify Write) instructions like inc/dec/cmpxchg without the
|
||||
lock prefix and the associated latency penalty.
|
||||
|
||||
Access to the variable without the lock prefix is not synchronized but
|
||||
|
|
@ -30,6 +30,38 @@ data specific to the currently executing processor. Only the current
|
|||
processor should be accessing that variable and therefore there are no
|
||||
concurrency issues with other processors in the system.
|
||||
|
||||
Please note that accesses by remote processors to a per cpu area are
|
||||
exceptional situations and may impact performance and/or correctness
|
||||
(remote write operations) of local RMW operations via this_cpu_*.
|
||||
|
||||
The main use of the this_cpu operations has been to optimize counter
|
||||
operations.
|
||||
|
||||
The following this_cpu() operations with implied preemption protection
|
||||
are defined. These operations can be used without worrying about
|
||||
preemption and interrupts.
|
||||
|
||||
this_cpu_add()
|
||||
this_cpu_read(pcp)
|
||||
this_cpu_write(pcp, val)
|
||||
this_cpu_add(pcp, val)
|
||||
this_cpu_and(pcp, val)
|
||||
this_cpu_or(pcp, val)
|
||||
this_cpu_add_return(pcp, val)
|
||||
this_cpu_xchg(pcp, nval)
|
||||
this_cpu_cmpxchg(pcp, oval, nval)
|
||||
this_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
|
||||
this_cpu_sub(pcp, val)
|
||||
this_cpu_inc(pcp)
|
||||
this_cpu_dec(pcp)
|
||||
this_cpu_sub_return(pcp, val)
|
||||
this_cpu_inc_return(pcp)
|
||||
this_cpu_dec_return(pcp)
|
||||
|
||||
|
||||
Inner working of this_cpu operations
|
||||
------------------------------------
|
||||
|
||||
On x86 the fs: or the gs: segment registers contain the base of the
|
||||
per cpu area. It is then possible to simply use the segment override
|
||||
to relocate a per cpu relative address to the proper per cpu area for
|
||||
|
|
@ -48,22 +80,21 @@ results in a single instruction
|
|||
mov ax, gs:[x]
|
||||
|
||||
instead of a sequence of calculation of the address and then a fetch
|
||||
from that address which occurs with the percpu operations. Before
|
||||
from that address which occurs with the per cpu operations. Before
|
||||
this_cpu_ops such sequence also required preempt disable/enable to
|
||||
prevent the kernel from moving the thread to a different processor
|
||||
while the calculation is performed.
|
||||
|
||||
The main use of the this_cpu operations has been to optimize counter
|
||||
operations.
|
||||
Consider the following this_cpu operation:
|
||||
|
||||
this_cpu_inc(x)
|
||||
|
||||
results in the following single instruction (no lock prefix!)
|
||||
The above results in the following single instruction (no lock prefix!)
|
||||
|
||||
inc gs:[x]
|
||||
|
||||
instead of the following operations required if there is no segment
|
||||
register.
|
||||
register:
|
||||
|
||||
int *y;
|
||||
int cpu;
|
||||
|
|
@ -73,10 +104,10 @@ register.
|
|||
(*y)++;
|
||||
put_cpu();
|
||||
|
||||
Note that these operations can only be used on percpu data that is
|
||||
Note that these operations can only be used on per cpu data that is
|
||||
reserved for a specific processor. Without disabling preemption in the
|
||||
surrounding code this_cpu_inc() will only guarantee that one of the
|
||||
percpu counters is correctly incremented. However, there is no
|
||||
per cpu counters is correctly incremented. However, there is no
|
||||
guarantee that the OS will not move the process directly before or
|
||||
after the this_cpu instruction is executed. In general this means that
|
||||
the value of the individual counters for each processor are
|
||||
|
|
@ -86,9 +117,9 @@ that is of interest.
|
|||
Per cpu variables are used for performance reasons. Bouncing cache
|
||||
lines can be avoided if multiple processors concurrently go through
|
||||
the same code paths. Since each processor has its own per cpu
|
||||
variables no concurrent cacheline updates take place. The price that
|
||||
variables no concurrent cache line updates take place. The price that
|
||||
has to be paid for this optimization is the need to add up the per cpu
|
||||
counters when the value of the counter is needed.
|
||||
counters when the value of a counter is needed.
|
||||
|
||||
|
||||
Special operations:
|
||||
|
|
@ -100,33 +131,39 @@ Takes the offset of a per cpu variable (&x !) and returns the address
|
|||
of the per cpu variable that belongs to the currently executing
|
||||
processor. this_cpu_ptr avoids multiple steps that the common
|
||||
get_cpu/put_cpu sequence requires. No processor number is
|
||||
available. Instead the offset of the local per cpu area is simply
|
||||
added to the percpu offset.
|
||||
available. Instead, the offset of the local per cpu area is simply
|
||||
added to the per cpu offset.
|
||||
|
||||
Note that this operation is usually used in a code segment when
|
||||
preemption has been disabled. The pointer is then used to
|
||||
access local per cpu data in a critical section. When preemption
|
||||
is re-enabled this pointer is usually no longer useful since it may
|
||||
no longer point to per cpu data of the current processor.
|
||||
|
||||
|
||||
Per cpu variables and offsets
|
||||
-----------------------------
|
||||
|
||||
Per cpu variables have *offsets* to the beginning of the percpu
|
||||
Per cpu variables have *offsets* to the beginning of the per cpu
|
||||
area. They do not have addresses although they look like that in the
|
||||
code. Offsets cannot be directly dereferenced. The offset must be
|
||||
added to a base pointer of a percpu area of a processor in order to
|
||||
added to a base pointer of a per cpu area of a processor in order to
|
||||
form a valid address.
|
||||
|
||||
Therefore the use of x or &x outside of the context of per cpu
|
||||
operations is invalid and will generally be treated like a NULL
|
||||
pointer dereference.
|
||||
|
||||
In the context of per cpu operations
|
||||
DEFINE_PER_CPU(int, x);
|
||||
|
||||
x is a per cpu variable. Most this_cpu operations take a cpu
|
||||
variable.
|
||||
In the context of per cpu operations the above implies that x is a per
|
||||
cpu variable. Most this_cpu operations take a cpu variable.
|
||||
|
||||
&x is the *offset* a per cpu variable. this_cpu_ptr() takes
|
||||
the offset of a per cpu variable which makes this look a bit
|
||||
strange.
|
||||
int __percpu *p = &x;
|
||||
|
||||
&x and hence p is the *offset* of a per cpu variable. this_cpu_ptr()
|
||||
takes the offset of a per cpu variable which makes this look a bit
|
||||
strange.
|
||||
|
||||
|
||||
Operations on a field of a per cpu structure
|
||||
|
|
@ -152,7 +189,7 @@ If we have an offset to struct s:
|
|||
|
||||
struct s __percpu *ps = &p;
|
||||
|
||||
z = this_cpu_dec(ps->m);
|
||||
this_cpu_dec(ps->m);
|
||||
|
||||
z = this_cpu_inc_return(ps->n);
|
||||
|
||||
|
|
@ -172,29 +209,52 @@ if we do not make use of this_cpu ops later to manipulate fields:
|
|||
Variants of this_cpu ops
|
||||
-------------------------
|
||||
|
||||
this_cpu ops are interrupt safe. Some architecture do not support
|
||||
this_cpu ops are interrupt safe. Some architectures do not support
|
||||
these per cpu local operations. In that case the operation must be
|
||||
replaced by code that disables interrupts, then does the operations
|
||||
that are guaranteed to be atomic and then reenable interrupts. Doing
|
||||
that are guaranteed to be atomic and then re-enable interrupts. Doing
|
||||
so is expensive. If there are other reasons why the scheduler cannot
|
||||
change the processor we are executing on then there is no reason to
|
||||
disable interrupts. For that purpose the __this_cpu operations are
|
||||
provided. For example.
|
||||
disable interrupts. For that purpose the following __this_cpu operations
|
||||
are provided.
|
||||
|
||||
__this_cpu_inc(x);
|
||||
These operations have no guarantee against concurrent interrupts or
|
||||
preemption. If a per cpu variable is not used in an interrupt context
|
||||
and the scheduler cannot preempt, then they are safe. If any interrupts
|
||||
still occur while an operation is in progress and if the interrupt too
|
||||
modifies the variable, then RMW actions can not be guaranteed to be
|
||||
safe.
|
||||
|
||||
Will increment x and will not fallback to code that disables
|
||||
__this_cpu_add()
|
||||
__this_cpu_read(pcp)
|
||||
__this_cpu_write(pcp, val)
|
||||
__this_cpu_add(pcp, val)
|
||||
__this_cpu_and(pcp, val)
|
||||
__this_cpu_or(pcp, val)
|
||||
__this_cpu_add_return(pcp, val)
|
||||
__this_cpu_xchg(pcp, nval)
|
||||
__this_cpu_cmpxchg(pcp, oval, nval)
|
||||
__this_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
|
||||
__this_cpu_sub(pcp, val)
|
||||
__this_cpu_inc(pcp)
|
||||
__this_cpu_dec(pcp)
|
||||
__this_cpu_sub_return(pcp, val)
|
||||
__this_cpu_inc_return(pcp)
|
||||
__this_cpu_dec_return(pcp)
|
||||
|
||||
|
||||
Will increment x and will not fall-back to code that disables
|
||||
interrupts on platforms that cannot accomplish atomicity through
|
||||
address relocation and a Read-Modify-Write operation in the same
|
||||
instruction.
|
||||
|
||||
|
||||
|
||||
&this_cpu_ptr(pp)->n vs this_cpu_ptr(&pp->n)
|
||||
--------------------------------------------
|
||||
|
||||
The first operation takes the offset and forms an address and then
|
||||
adds the offset of the n field.
|
||||
adds the offset of the n field. This may result in two add
|
||||
instructions emitted by the compiler.
|
||||
|
||||
The second one first adds the two offsets and then does the
|
||||
relocation. IMHO the second form looks cleaner and has an easier time
|
||||
|
|
@ -202,4 +262,73 @@ with (). The second form also is consistent with the way
|
|||
this_cpu_read() and friends are used.
|
||||
|
||||
|
||||
Christoph Lameter, April 3rd, 2013
|
||||
Remote access to per cpu data
|
||||
------------------------------
|
||||
|
||||
Per cpu data structures are designed to be used by one cpu exclusively.
|
||||
If you use the variables as intended, this_cpu_ops() are guaranteed to
|
||||
be "atomic" as no other CPU has access to these data structures.
|
||||
|
||||
There are special cases where you might need to access per cpu data
|
||||
structures remotely. It is usually safe to do a remote read access
|
||||
and that is frequently done to summarize counters. Remote write access
|
||||
something which could be problematic because this_cpu ops do not
|
||||
have lock semantics. A remote write may interfere with a this_cpu
|
||||
RMW operation.
|
||||
|
||||
Remote write accesses to percpu data structures are highly discouraged
|
||||
unless absolutely necessary. Please consider using an IPI to wake up
|
||||
the remote CPU and perform the update to its per cpu area.
|
||||
|
||||
To access per-cpu data structure remotely, typically the per_cpu_ptr()
|
||||
function is used:
|
||||
|
||||
|
||||
DEFINE_PER_CPU(struct data, datap);
|
||||
|
||||
struct data *p = per_cpu_ptr(&datap, cpu);
|
||||
|
||||
This makes it explicit that we are getting ready to access a percpu
|
||||
area remotely.
|
||||
|
||||
You can also do the following to convert the datap offset to an address
|
||||
|
||||
struct data *p = this_cpu_ptr(&datap);
|
||||
|
||||
but, passing of pointers calculated via this_cpu_ptr to other cpus is
|
||||
unusual and should be avoided.
|
||||
|
||||
Remote access are typically only for reading the status of another cpus
|
||||
per cpu data. Write accesses can cause unique problems due to the
|
||||
relaxed synchronization requirements for this_cpu operations.
|
||||
|
||||
One example that illustrates some concerns with write operations is
|
||||
the following scenario that occurs because two per cpu variables
|
||||
share a cache-line but the relaxed synchronization is applied to
|
||||
only one process updating the cache-line.
|
||||
|
||||
Consider the following example
|
||||
|
||||
|
||||
struct test {
|
||||
atomic_t a;
|
||||
int b;
|
||||
};
|
||||
|
||||
DEFINE_PER_CPU(struct test, onecacheline);
|
||||
|
||||
There is some concern about what would happen if the field 'a' is updated
|
||||
remotely from one processor and the local processor would use this_cpu ops
|
||||
to update field b. Care should be taken that such simultaneous accesses to
|
||||
data within the same cache line are avoided. Also costly synchronization
|
||||
may be necessary. IPIs are generally recommended in such scenarios instead
|
||||
of a remote write to the per cpu area of another processor.
|
||||
|
||||
Even in cases where the remote writes are rare, please bear in
|
||||
mind that a remote write will evict the cache line from the processor
|
||||
that most likely will access it. If the processor wakes up and finds a
|
||||
missing local cache line of a per cpu area, its performance and hence
|
||||
the wake up times will be affected.
|
||||
|
||||
Christoph Lameter, August 4th, 2014
|
||||
Pranith Kumar, Aug 2nd, 2014
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@ invlpg instruction (or instructions _near_ it) show up high in
|
|||
profiles. If you believe that individual invalidations being
|
||||
called too often, you can lower the tunable:
|
||||
|
||||
/sys/debug/kernel/x86/tlb_single_page_flush_ceiling
|
||||
/sys/kernel/debug/x86/tlb_single_page_flush_ceiling
|
||||
|
||||
This will cause us to do the global flush for more cases.
|
||||
Lowering it to 0 will disable the use of the individual flushes.
|
||||
|
|
|
|||
85
MAINTAINERS
85
MAINTAINERS
|
|
@ -1277,9 +1277,15 @@ F: drivers/scsi/arm/
|
|||
ARM/Rockchip SoC support
|
||||
M: Heiko Stuebner <heiko@sntech.de>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
L: linux-rockchip@lists.infradead.org
|
||||
S: Maintained
|
||||
F: arch/arm/boot/dts/rk3*
|
||||
F: arch/arm/mach-rockchip/
|
||||
F: drivers/clk/rockchip/
|
||||
F: drivers/i2c/busses/i2c-rk3x.c
|
||||
F: drivers/*/*rockchip*
|
||||
F: drivers/*/*/*rockchip*
|
||||
F: sound/soc/rockchip/
|
||||
|
||||
ARM/SAMSUNG ARM ARCHITECTURES
|
||||
M: Ben Dooks <ben-linux@fluff.org>
|
||||
|
|
@ -1843,6 +1849,12 @@ S: Orphan
|
|||
F: Documentation/filesystems/befs.txt
|
||||
F: fs/befs/
|
||||
|
||||
BECKHOFF CX5020 ETHERCAT MASTER DRIVER
|
||||
M: Dariusz Marcinkiewicz <reksio@newterm.pl>
|
||||
L: netdev@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/ethernet/ec_bhf.c
|
||||
|
||||
BFS FILE SYSTEM
|
||||
M: "Tigran A. Aivazian" <tigran@aivazian.fsnet.co.uk>
|
||||
S: Maintained
|
||||
|
|
@ -2059,7 +2071,7 @@ S: Supported
|
|||
F: drivers/scsi/bnx2i/
|
||||
|
||||
BROADCOM KONA GPIO DRIVER
|
||||
M: Markus Mayer <markus.mayer@linaro.org>
|
||||
M: Ray Jui <rjui@broadcom.com>
|
||||
L: bcm-kernel-feedback-list@broadcom.com
|
||||
S: Supported
|
||||
F: drivers/gpio/gpio-bcm-kona.c
|
||||
|
|
@ -3115,6 +3127,17 @@ F: include/linux/host1x.h
|
|||
F: include/uapi/drm/tegra_drm.h
|
||||
F: Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt
|
||||
|
||||
DRM DRIVERS FOR RENESAS
|
||||
M: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
||||
L: dri-devel@lists.freedesktop.org
|
||||
L: linux-sh@vger.kernel.org
|
||||
T: git git://people.freedesktop.org/~airlied/linux
|
||||
S: Supported
|
||||
F: drivers/gpu/drm/rcar-du/
|
||||
F: drivers/gpu/drm/shmobile/
|
||||
F: include/linux/platform_data/rcar-du.h
|
||||
F: include/linux/platform_data/shmob_drm.h
|
||||
|
||||
DSBR100 USB FM RADIO DRIVER
|
||||
M: Alexey Klimov <klimov.linux@gmail.com>
|
||||
L: linux-media@vger.kernel.org
|
||||
|
|
@ -3843,10 +3866,13 @@ F: drivers/tty/serial/ucc_uart.c
|
|||
|
||||
FREESCALE SOC SOUND DRIVERS
|
||||
M: Timur Tabi <timur@tabi.org>
|
||||
M: Nicolin Chen <nicoleotsuka@gmail.com>
|
||||
M: Xiubo Li <Li.Xiubo@freescale.com>
|
||||
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
|
||||
L: linuxppc-dev@lists.ozlabs.org
|
||||
S: Maintained
|
||||
F: sound/soc/fsl/fsl*
|
||||
F: sound/soc/fsl/imx*
|
||||
F: sound/soc/fsl/mpc8610_hpcd.c
|
||||
|
||||
FREEVXFS FILESYSTEM
|
||||
|
|
@ -4446,6 +4472,13 @@ F: include/linux/i2c-*.h
|
|||
F: include/uapi/linux/i2c.h
|
||||
F: include/uapi/linux/i2c-*.h
|
||||
|
||||
I2C ACPI SUPPORT
|
||||
M: Mika Westerberg <mika.westerberg@linux.intel.com>
|
||||
L: linux-i2c@vger.kernel.org
|
||||
L: linux-acpi@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/i2c/i2c-acpi.c
|
||||
|
||||
I2C-TAOS-EVM DRIVER
|
||||
M: Jean Delvare <jdelvare@suse.de>
|
||||
L: linux-i2c@vger.kernel.org
|
||||
|
|
@ -5972,6 +6005,12 @@ T: git git://linuxtv.org/media_tree.git
|
|||
S: Maintained
|
||||
F: drivers/media/radio/radio-mr800.c
|
||||
|
||||
MRF24J40 IEEE 802.15.4 RADIO DRIVER
|
||||
M: Alan Ott <alan@signal11.us>
|
||||
L: linux-wpan@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/net/ieee802154/mrf24j40.c
|
||||
|
||||
MSI LAPTOP SUPPORT
|
||||
M: "Lee, Chun-Yi" <jlee@suse.com>
|
||||
L: platform-driver-x86@vger.kernel.org
|
||||
|
|
@ -6385,7 +6424,8 @@ F: Documentation/scsi/NinjaSCSI.txt
|
|||
F: drivers/scsi/nsp32*
|
||||
|
||||
NTB DRIVER
|
||||
M: Jon Mason <jon.mason@intel.com>
|
||||
M: Jon Mason <jdmason@kudzu.us>
|
||||
M: Dave Jiang <dave.jiang@intel.com>
|
||||
S: Supported
|
||||
W: https://github.com/jonmason/ntb/wiki
|
||||
T: git git://github.com/jonmason/ntb.git
|
||||
|
|
@ -6836,7 +6876,7 @@ F: arch/x86/kernel/quirks.c
|
|||
|
||||
PCI DRIVER FOR IMX6
|
||||
M: Richard Zhu <r65037@freescale.com>
|
||||
M: Shawn Guo <shawn.guo@freescale.com>
|
||||
M: Lucas Stach <l.stach@pengutronix.de>
|
||||
L: linux-pci@vger.kernel.org
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
S: Maintained
|
||||
|
|
@ -6858,6 +6898,14 @@ S: Supported
|
|||
F: Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
|
||||
F: drivers/pci/host/pci-tegra.c
|
||||
|
||||
PCI DRIVER FOR TI DRA7XX
|
||||
M: Kishon Vijay Abraham I <kishon@ti.com>
|
||||
L: linux-omap@vger.kernel.org
|
||||
L: linux-pci@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/devicetree/bindings/pci/ti-pci.txt
|
||||
F: drivers/pci/host/pci-dra7xx.c
|
||||
|
||||
PCI DRIVER FOR RENESAS R-CAR
|
||||
M: Simon Horman <horms@verge.net.au>
|
||||
L: linux-pci@vger.kernel.org
|
||||
|
|
@ -7006,7 +7054,7 @@ S: Maintained
|
|||
F: drivers/pinctrl/sh-pfc/
|
||||
|
||||
PIN CONTROLLER - SAMSUNG
|
||||
M: Tomasz Figa <t.figa@samsung.com>
|
||||
M: Tomasz Figa <tomasz.figa@gmail.com>
|
||||
M: Thomas Abraham <thomas.abraham@linaro.org>
|
||||
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
|
||||
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
|
||||
|
|
@ -7059,6 +7107,7 @@ F: drivers/scsi/pmcraid.*
|
|||
PMC SIERRA PM8001 DRIVER
|
||||
M: xjtuwjp@gmail.com
|
||||
M: lindar_liu@usish.com
|
||||
L: pmchba@pmcs.com
|
||||
L: linux-scsi@vger.kernel.org
|
||||
S: Supported
|
||||
F: drivers/scsi/pm8001/
|
||||
|
|
@ -7851,7 +7900,8 @@ S: Supported
|
|||
F: drivers/media/i2c/s5k5baf.c
|
||||
|
||||
SAMSUNG SOC CLOCK DRIVERS
|
||||
M: Tomasz Figa <t.figa@samsung.com>
|
||||
M: Sylwester Nawrocki <s.nawrocki@samsung.com>
|
||||
M: Tomasz Figa <tomasz.figa@gmail.com>
|
||||
S: Supported
|
||||
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
|
||||
F: drivers/clk/samsung/
|
||||
|
|
@ -7864,6 +7914,19 @@ S: Supported
|
|||
L: netdev@vger.kernel.org
|
||||
F: drivers/net/ethernet/samsung/sxgbe/
|
||||
|
||||
SAMSUNG USB2 PHY DRIVER
|
||||
M: Kamil Debski <k.debski@samsung.com>
|
||||
L: linux-kernel@vger.kernel.org
|
||||
S: Supported
|
||||
F: Documentation/devicetree/bindings/phy/samsung-phy.txt
|
||||
F: Documentation/phy/samsung-usb2.txt
|
||||
F: drivers/phy/phy-exynos4210-usb2.c
|
||||
F: drivers/phy/phy-exynos4x12-usb2.c
|
||||
F: drivers/phy/phy-exynos5250-usb2.c
|
||||
F: drivers/phy/phy-s5pv210-usb2.c
|
||||
F: drivers/phy/phy-samsung-usb2.c
|
||||
F: drivers/phy/phy-samsung-usb2.h
|
||||
|
||||
SERIAL DRIVERS
|
||||
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||||
L: linux-serial@vger.kernel.org
|
||||
|
|
@ -9514,6 +9577,14 @@ S: Maintained
|
|||
F: Documentation/usb/ohci.txt
|
||||
F: drivers/usb/host/ohci*
|
||||
|
||||
USB OVER IP DRIVER
|
||||
M: Valentina Manea <valentina.manea.m@gmail.com>
|
||||
M: Shuah Khan <shuah.kh@samsung.com>
|
||||
L: linux-usb@vger.kernel.org
|
||||
S: Maintained
|
||||
F: drivers/usb/usbip/
|
||||
F: tools/usb/usbip/
|
||||
|
||||
USB PEGASUS DRIVER
|
||||
M: Petko Manolov <petkan@nucleusys.com>
|
||||
L: linux-usb@vger.kernel.org
|
||||
|
|
@ -10014,9 +10085,9 @@ F: Documentation/x86/
|
|||
F: arch/x86/
|
||||
|
||||
X86 PLATFORM DRIVERS
|
||||
M: Matthew Garrett <matthew.garrett@nebula.com>
|
||||
M: Darren Hart <dvhart@infradead.org>
|
||||
L: platform-driver-x86@vger.kernel.org
|
||||
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86.git
|
||||
T: git git://git.infradead.org/users/dvhart/linux-platform-drivers-x86.git
|
||||
S: Maintained
|
||||
F: drivers/platform/x86/
|
||||
|
||||
|
|
|
|||
4
Makefile
4
Makefile
|
|
@ -1,7 +1,7 @@
|
|||
VERSION = 3
|
||||
PATCHLEVEL = 16
|
||||
PATCHLEVEL = 17
|
||||
SUBLEVEL = 0
|
||||
EXTRAVERSION =
|
||||
EXTRAVERSION = -rc6
|
||||
NAME = Shuffling Zombie Juror
|
||||
|
||||
# *DOCUMENTATION*
|
||||
|
|
|
|||
|
|
@ -500,10 +500,14 @@ extern inline void writeq(u64 b, volatile void __iomem *addr)
|
|||
#define outb_p outb
|
||||
#define outw_p outw
|
||||
#define outl_p outl
|
||||
#define readb_relaxed(addr) __raw_readb(addr)
|
||||
#define readw_relaxed(addr) __raw_readw(addr)
|
||||
#define readl_relaxed(addr) __raw_readl(addr)
|
||||
#define readq_relaxed(addr) __raw_readq(addr)
|
||||
#define readb_relaxed(addr) __raw_readb(addr)
|
||||
#define readw_relaxed(addr) __raw_readw(addr)
|
||||
#define readl_relaxed(addr) __raw_readl(addr)
|
||||
#define readq_relaxed(addr) __raw_readq(addr)
|
||||
#define writeb_relaxed(b, addr) __raw_writeb(b, addr)
|
||||
#define writew_relaxed(b, addr) __raw_writew(b, addr)
|
||||
#define writel_relaxed(b, addr) __raw_writel(b, addr)
|
||||
#define writeq_relaxed(b, addr) __raw_writeq(b, addr)
|
||||
|
||||
#define mmiowb()
|
||||
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
#include <uapi/asm/unistd.h>
|
||||
|
||||
#define NR_SYSCALLS 508
|
||||
#define NR_SYSCALLS 511
|
||||
|
||||
#define __ARCH_WANT_OLD_READDIR
|
||||
#define __ARCH_WANT_STAT64
|
||||
|
|
|
|||
|
|
@ -469,5 +469,8 @@
|
|||
#define __NR_process_vm_writev 505
|
||||
#define __NR_kcmp 506
|
||||
#define __NR_finit_module 507
|
||||
#define __NR_sched_setattr 508
|
||||
#define __NR_sched_getattr 509
|
||||
#define __NR_renameat2 510
|
||||
|
||||
#endif /* _UAPI_ALPHA_UNISTD_H */
|
||||
|
|
|
|||
|
|
@ -526,6 +526,9 @@ sys_call_table:
|
|||
.quad sys_process_vm_writev /* 505 */
|
||||
.quad sys_kcmp
|
||||
.quad sys_finit_module
|
||||
.quad sys_sched_setattr
|
||||
.quad sys_sched_getattr
|
||||
.quad sys_renameat2 /* 510 */
|
||||
|
||||
.size sys_call_table, . - sys_call_table
|
||||
.type sys_call_table, @object
|
||||
|
|
|
|||
|
|
@ -427,7 +427,7 @@ struct ic_inv_args {
|
|||
|
||||
static void __ic_line_inv_vaddr_helper(void *info)
|
||||
{
|
||||
struct ic_inv *ic_inv_args = (struct ic_inv_args *) info;
|
||||
struct ic_inv_args *ic_inv = info;
|
||||
|
||||
__ic_line_inv_vaddr_local(ic_inv->paddr, ic_inv->vaddr, ic_inv->sz);
|
||||
}
|
||||
|
|
@ -581,6 +581,7 @@ void flush_icache_range(unsigned long kstart, unsigned long kend)
|
|||
tot_sz -= sz;
|
||||
}
|
||||
}
|
||||
EXPORT_SYMBOL(flush_icache_range);
|
||||
|
||||
/*
|
||||
* General purpose helper to make I and D cache lines consistent.
|
||||
|
|
|
|||
|
|
@ -1983,8 +1983,6 @@ config XIP_PHYS_ADDR
|
|||
config KEXEC
|
||||
bool "Kexec system call (EXPERIMENTAL)"
|
||||
depends on (!SMP || PM_SLEEP_SMP)
|
||||
select CRYPTO
|
||||
select CRYPTO_SHA256
|
||||
help
|
||||
kexec is a system call that implements the ability to shutdown your
|
||||
current kernel, and to start another kernel. It is like a reboot
|
||||
|
|
|
|||
|
|
@ -804,7 +804,7 @@
|
|||
|
||||
usb1: usb@48390000 {
|
||||
compatible = "synopsys,dwc3";
|
||||
reg = <0x48390000 0x17000>;
|
||||
reg = <0x48390000 0x10000>;
|
||||
interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
|
||||
phys = <&usb2_phy1>;
|
||||
phy-names = "usb2-phy";
|
||||
|
|
@ -826,7 +826,7 @@
|
|||
|
||||
usb2: usb@483d0000 {
|
||||
compatible = "synopsys,dwc3";
|
||||
reg = <0x483d0000 0x17000>;
|
||||
reg = <0x483d0000 0x10000>;
|
||||
interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
|
||||
phys = <&usb2_phy2>;
|
||||
phy-names = "usb2-phy";
|
||||
|
|
|
|||
|
|
@ -260,7 +260,7 @@
|
|||
status = "okay";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c0_pins>;
|
||||
clock-frequency = <400000>;
|
||||
clock-frequency = <100000>;
|
||||
|
||||
tps65218: tps65218@24 {
|
||||
reg = <0x24>;
|
||||
|
|
@ -424,7 +424,7 @@
|
|||
ranges = <0 0 0 0x01000000>; /* minimum GPMC partition = 16MB */
|
||||
nand@0,0 {
|
||||
reg = <0 0 4>; /* device IO registers */
|
||||
ti,nand-ecc-opt = "bch8";
|
||||
ti,nand-ecc-opt = "bch16";
|
||||
ti,elm-id = <&elm>;
|
||||
nand-bus-width = <8>;
|
||||
gpmc,device-width = <1>;
|
||||
|
|
@ -443,8 +443,6 @@
|
|||
gpmc,rd-cycle-ns = <40>;
|
||||
gpmc,wr-cycle-ns = <40>;
|
||||
gpmc,wait-pin = <0>;
|
||||
gpmc,wait-on-read;
|
||||
gpmc,wait-on-write;
|
||||
gpmc,bus-turnaround-ns = <0>;
|
||||
gpmc,cycle2cycle-delay-ns = <0>;
|
||||
gpmc,clk-activation-ns = <0>;
|
||||
|
|
|
|||
|
|
@ -435,13 +435,13 @@
|
|||
};
|
||||
|
||||
&gpmc {
|
||||
status = "okay";
|
||||
status = "okay"; /* Disable QSPI when enabling GPMC (NAND) */
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&nand_flash_x8>;
|
||||
ranges = <0 0 0x08000000 0x10000000>; /* CS0: NAND */
|
||||
nand@0,0 {
|
||||
reg = <0 0 0>; /* CS0, offset 0 */
|
||||
ti,nand-ecc-opt = "bch8";
|
||||
ti,nand-ecc-opt = "bch16";
|
||||
ti,elm-id = <&elm>;
|
||||
nand-bus-width = <8>;
|
||||
gpmc,device-width = <1>;
|
||||
|
|
@ -459,8 +459,7 @@
|
|||
gpmc,access-ns = <30>; /* tCEA + 4*/
|
||||
gpmc,rd-cycle-ns = <40>;
|
||||
gpmc,wr-cycle-ns = <40>;
|
||||
gpmc,wait-on-read = "true";
|
||||
gpmc,wait-on-write = "true";
|
||||
gpmc,wait-pin = <0>;
|
||||
gpmc,bus-turnaround-ns = <0>;
|
||||
gpmc,cycle2cycle-delay-ns = <0>;
|
||||
gpmc,clk-activation-ns = <0>;
|
||||
|
|
@ -557,7 +556,7 @@
|
|||
};
|
||||
|
||||
&qspi {
|
||||
status = "okay";
|
||||
status = "disabled"; /* Disable GPMC (NAND) when enabling QSPI */
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&qspi1_default>;
|
||||
|
||||
|
|
|
|||
|
|
@ -149,7 +149,7 @@
|
|||
usb: usbck {
|
||||
compatible = "atmel,at91rm9200-clk-usb";
|
||||
#clock-cells = <0>;
|
||||
atmel,clk-divisors = <1 2>;
|
||||
atmel,clk-divisors = <1 2 0 0>;
|
||||
clocks = <&pllb>;
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -40,6 +40,7 @@
|
|||
};
|
||||
|
||||
pllb: pllbck {
|
||||
compatible = "atmel,at91sam9g20-clk-pllb";
|
||||
atmel,clk-input-range = <2000000 32000000>;
|
||||
atmel,pll-clk-output-ranges = <30000000 100000000 0 0>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@
|
|||
/dts-v1/;
|
||||
|
||||
#include "dra74x.dtsi"
|
||||
#include <dt-bindings/gpio/gpio.h>
|
||||
|
||||
/ {
|
||||
model = "TI DRA742";
|
||||
|
|
@ -24,9 +25,29 @@
|
|||
regulator-min-microvolt = <3300000>;
|
||||
regulator-max-microvolt = <3300000>;
|
||||
};
|
||||
|
||||
vtt_fixed: fixedregulator-vtt {
|
||||
compatible = "regulator-fixed";
|
||||
regulator-name = "vtt_fixed";
|
||||
regulator-min-microvolt = <1350000>;
|
||||
regulator-max-microvolt = <1350000>;
|
||||
regulator-always-on;
|
||||
regulator-boot-on;
|
||||
enable-active-high;
|
||||
gpio = <&gpio7 11 GPIO_ACTIVE_HIGH>;
|
||||
};
|
||||
};
|
||||
|
||||
&dra7_pmx_core {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&vtt_pin>;
|
||||
|
||||
vtt_pin: pinmux_vtt_pin {
|
||||
pinctrl-single,pins = <
|
||||
0x3b4 (PIN_OUTPUT | MUX_MODE14) /* spi1_cs1.gpio7_11 */
|
||||
>;
|
||||
};
|
||||
|
||||
i2c1_pins: pinmux_i2c1_pins {
|
||||
pinctrl-single,pins = <
|
||||
0x400 (PIN_INPUT | MUX_MODE0) /* i2c1_sda */
|
||||
|
|
@ -43,20 +64,19 @@
|
|||
|
||||
i2c3_pins: pinmux_i2c3_pins {
|
||||
pinctrl-single,pins = <
|
||||
0x410 (PIN_INPUT | MUX_MODE0) /* i2c3_sda */
|
||||
0x414 (PIN_INPUT | MUX_MODE0) /* i2c3_scl */
|
||||
0x288 (PIN_INPUT | MUX_MODE9) /* gpio6_14.i2c3_sda */
|
||||
0x28c (PIN_INPUT | MUX_MODE9) /* gpio6_15.i2c3_scl */
|
||||
>;
|
||||
};
|
||||
|
||||
mcspi1_pins: pinmux_mcspi1_pins {
|
||||
pinctrl-single,pins = <
|
||||
0x3a4 (PIN_INPUT | MUX_MODE0) /* spi2_clk */
|
||||
0x3a8 (PIN_INPUT | MUX_MODE0) /* spi2_d1 */
|
||||
0x3ac (PIN_INPUT | MUX_MODE0) /* spi2_d0 */
|
||||
0x3b0 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_cs0 */
|
||||
0x3b4 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_cs1 */
|
||||
0x3b8 (PIN_INPUT_SLEW | MUX_MODE6) /* spi2_cs2 */
|
||||
0x3bc (PIN_INPUT_SLEW | MUX_MODE6) /* spi2_cs3 */
|
||||
0x3a4 (PIN_INPUT | MUX_MODE0) /* spi1_sclk */
|
||||
0x3a8 (PIN_INPUT | MUX_MODE0) /* spi1_d1 */
|
||||
0x3ac (PIN_INPUT | MUX_MODE0) /* spi1_d0 */
|
||||
0x3b0 (PIN_INPUT_SLEW | MUX_MODE0) /* spi1_cs0 */
|
||||
0x3b8 (PIN_INPUT_SLEW | MUX_MODE6) /* spi1_cs2.hdmi1_hpd */
|
||||
0x3bc (PIN_INPUT_SLEW | MUX_MODE6) /* spi1_cs3.hdmi1_cec */
|
||||
>;
|
||||
};
|
||||
|
||||
|
|
@ -284,7 +304,7 @@
|
|||
status = "okay";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c3_pins>;
|
||||
clock-frequency = <3400000>;
|
||||
clock-frequency = <400000>;
|
||||
};
|
||||
|
||||
&mcspi1 {
|
||||
|
|
@ -483,7 +503,7 @@
|
|||
reg = <0x001c0000 0x00020000>;
|
||||
};
|
||||
partition@7 {
|
||||
label = "NAND.u-boot-env";
|
||||
label = "NAND.u-boot-env.backup1";
|
||||
reg = <0x001e0000 0x00020000>;
|
||||
};
|
||||
partition@8 {
|
||||
|
|
@ -504,3 +524,8 @@
|
|||
&usb2_phy2 {
|
||||
phy-supply = <&ldousb_reg>;
|
||||
};
|
||||
|
||||
&gpio7 {
|
||||
ti,no-reset-on-init;
|
||||
ti,no-idle-on-init;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -245,7 +245,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
gpio2: gpio@48055000 {
|
||||
|
|
@ -256,7 +256,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
gpio3: gpio@48057000 {
|
||||
|
|
@ -267,7 +267,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
gpio4: gpio@48059000 {
|
||||
|
|
@ -278,7 +278,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
gpio5: gpio@4805b000 {
|
||||
|
|
@ -289,7 +289,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
gpio6: gpio@4805d000 {
|
||||
|
|
@ -300,7 +300,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
gpio7: gpio@48051000 {
|
||||
|
|
@ -311,7 +311,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
gpio8: gpio@48053000 {
|
||||
|
|
@ -322,7 +322,7 @@
|
|||
gpio-controller;
|
||||
#gpio-cells = <2>;
|
||||
interrupt-controller;
|
||||
#interrupt-cells = <1>;
|
||||
#interrupt-cells = <2>;
|
||||
};
|
||||
|
||||
uart1: serial@4806a000 {
|
||||
|
|
|
|||
|
|
@ -134,6 +134,8 @@
|
|||
i2c@13860000 {
|
||||
pinctrl-0 = <&i2c0_bus>;
|
||||
pinctrl-names = "default";
|
||||
samsung,i2c-sda-delay = <100>;
|
||||
samsung,i2c-max-bus-freq = <400000>;
|
||||
status = "okay";
|
||||
|
||||
usb3503: usb3503@08 {
|
||||
|
|
@ -148,6 +150,10 @@
|
|||
|
||||
max77686: pmic@09 {
|
||||
compatible = "maxim,max77686";
|
||||
interrupt-parent = <&gpx3>;
|
||||
interrupts = <2 0>;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&max77686_irq>;
|
||||
reg = <0x09>;
|
||||
#clock-cells = <1>;
|
||||
|
||||
|
|
@ -368,4 +374,11 @@
|
|||
samsung,pins = "gpx1-3";
|
||||
samsung,pin-pud = <0>;
|
||||
};
|
||||
|
||||
max77686_irq: max77686-irq {
|
||||
samsung,pins = "gpx3-2";
|
||||
samsung,pin-function = <0>;
|
||||
samsung,pin-pud = <0>;
|
||||
samsung,pin-drv = <0>;
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -28,6 +28,12 @@
|
|||
MX53_PAD_CSI0_DAT9__I2C1_SCL 0x400001ec
|
||||
>;
|
||||
};
|
||||
|
||||
pinctrl_pmic: pmicgrp {
|
||||
fsl,pins = <
|
||||
MX53_PAD_CSI0_DAT5__GPIO5_23 0x1e4 /* IRQ */
|
||||
>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
|
|
@ -38,6 +44,8 @@
|
|||
|
||||
pmic: mc34708@8 {
|
||||
compatible = "fsl,mc34708";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&pinctrl_pmic>;
|
||||
reg = <0x08>;
|
||||
interrupt-parent = <&gpio5>;
|
||||
interrupts = <23 0x8>;
|
||||
|
|
|
|||
|
|
@ -731,7 +731,7 @@
|
|||
compatible = "fsl,imx53-vpu";
|
||||
reg = <0x63ff4000 0x1000>;
|
||||
interrupts = <9>;
|
||||
clocks = <&clks IMX5_CLK_VPU_GATE>,
|
||||
clocks = <&clks IMX5_CLK_VPU_REFERENCE_GATE>,
|
||||
<&clks IMX5_CLK_VPU_GATE>;
|
||||
clock-names = "per", "ahb";
|
||||
resets = <&src 1>;
|
||||
|
|
|
|||
|
|
@ -58,7 +58,7 @@
|
|||
|
||||
sound-spdif {
|
||||
compatible = "fsl,imx-audio-spdif";
|
||||
model = "imx-spdif";
|
||||
model = "On-board SPDIF";
|
||||
/* IMX6 doesn't implement this yet */
|
||||
spdif-controller = <&spdif>;
|
||||
spdif-out;
|
||||
|
|
@ -181,11 +181,13 @@
|
|||
};
|
||||
|
||||
&usbh1 {
|
||||
disable-over-current;
|
||||
vbus-supply = <®_usbh1_vbus>;
|
||||
status = "okay";
|
||||
};
|
||||
|
||||
&usbotg {
|
||||
disable-over-current;
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&pinctrl_hummingboard_usbotg_id>;
|
||||
vbus-supply = <®_usbotg_vbus>;
|
||||
|
|
|
|||
|
|
@ -119,7 +119,7 @@
|
|||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&pinctrl_enet>;
|
||||
phy-mode = "rgmii";
|
||||
phy-reset-gpios = <&gpio3 23 0>;
|
||||
phy-reset-gpios = <&gpio1 25 0>;
|
||||
phy-supply = <&vgen2_1v2_eth>;
|
||||
status = "okay";
|
||||
};
|
||||
|
|
@ -339,6 +339,7 @@
|
|||
MX6QDL_PAD_ENET_REF_CLK__ENET_TX_CLK 0x1b0b0
|
||||
MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b0b0
|
||||
MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0
|
||||
MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25 0x1b0b0
|
||||
MX6QDL_PAD_GPIO_16__ENET_REF_CLK 0x4001b0a8
|
||||
>;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -61,7 +61,7 @@
|
|||
|
||||
sound-spdif {
|
||||
compatible = "fsl,imx-audio-spdif";
|
||||
model = "imx-spdif";
|
||||
model = "Integrated SPDIF";
|
||||
/* IMX6 doesn't implement this yet */
|
||||
spdif-controller = <&spdif>;
|
||||
spdif-out;
|
||||
|
|
@ -130,16 +130,23 @@
|
|||
fsl,pins = <MX6QDL_PAD_GPIO_17__SPDIF_OUT 0x13091>;
|
||||
};
|
||||
|
||||
pinctrl_cubox_i_usbh1: cubox-i-usbh1 {
|
||||
fsl,pins = <MX6QDL_PAD_GPIO_3__USB_H1_OC 0x1b0b0>;
|
||||
};
|
||||
|
||||
pinctrl_cubox_i_usbh1_vbus: cubox-i-usbh1-vbus {
|
||||
fsl,pins = <MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x4001b0b0>;
|
||||
};
|
||||
|
||||
pinctrl_cubox_i_usbotg_id: cubox-i-usbotg-id {
|
||||
pinctrl_cubox_i_usbotg: cubox-i-usbotg {
|
||||
/*
|
||||
* The Cubox-i pulls this low, but as it's pointless
|
||||
* The Cubox-i pulls ID low, but as it's pointless
|
||||
* leaving it as a pull-up, even if it is just 10uA.
|
||||
*/
|
||||
fsl,pins = <MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x13059>;
|
||||
fsl,pins = <
|
||||
MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x13059
|
||||
MX6QDL_PAD_KEY_COL4__USB_OTG_OC 0x1b0b0
|
||||
>;
|
||||
};
|
||||
|
||||
pinctrl_cubox_i_usbotg_vbus: cubox-i-usbotg-vbus {
|
||||
|
|
@ -173,13 +180,15 @@
|
|||
};
|
||||
|
||||
&usbh1 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&pinctrl_cubox_i_usbh1>;
|
||||
vbus-supply = <®_usbh1_vbus>;
|
||||
status = "okay";
|
||||
};
|
||||
|
||||
&usbotg {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&pinctrl_cubox_i_usbotg_id>;
|
||||
pinctrl-0 = <&pinctrl_cubox_i_usbotg>;
|
||||
vbus-supply = <®_usbotg_vbus>;
|
||||
status = "okay";
|
||||
};
|
||||
|
|
|
|||
|
|
@ -17,7 +17,7 @@
|
|||
enet {
|
||||
pinctrl_microsom_enet_ar8035: microsom-enet-ar8035 {
|
||||
fsl,pins = <
|
||||
MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b0b0
|
||||
MX6QDL_PAD_ENET_MDIO__ENET_MDIO 0x1b8b0
|
||||
MX6QDL_PAD_ENET_MDC__ENET_MDC 0x1b0b0
|
||||
/* AR8035 reset */
|
||||
MX6QDL_PAD_KEY_ROW4__GPIO4_IO15 0x130b0
|
||||
|
|
|
|||
|
|
@ -78,7 +78,7 @@
|
|||
#define MX6SX_PAD_GPIO1_IO07__USDHC2_WP 0x0030 0x0378 0x0870 0x1 0x1
|
||||
#define MX6SX_PAD_GPIO1_IO07__ENET2_MDIO 0x0030 0x0378 0x0770 0x2 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO07__AUDMUX_MCLK 0x0030 0x0378 0x0000 0x3 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO07__UART1_CTS_B 0x0030 0x0378 0x082C 0x4 0x1
|
||||
#define MX6SX_PAD_GPIO1_IO07__UART1_CTS_B 0x0030 0x0378 0x0000 0x4 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO07__GPIO1_IO_7 0x0030 0x0378 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO07__SRC_EARLY_RESET 0x0030 0x0378 0x0000 0x6 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO07__DCIC2_OUT 0x0030 0x0378 0x0000 0x7 0x0
|
||||
|
|
@ -96,7 +96,7 @@
|
|||
#define MX6SX_PAD_GPIO1_IO09__WDOG2_WDOG_B 0x0038 0x0380 0x0000 0x1 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO09__SDMA_EXT_EVENT_1 0x0038 0x0380 0x0820 0x2 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO09__CCM_OUT0 0x0038 0x0380 0x0000 0x3 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO09__UART2_CTS_B 0x0038 0x0380 0x0834 0x4 0x1
|
||||
#define MX6SX_PAD_GPIO1_IO09__UART2_CTS_B 0x0038 0x0380 0x0000 0x4 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO09__GPIO1_IO_9 0x0038 0x0380 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO09__SRC_INT_BOOT 0x0038 0x0380 0x0000 0x6 0x0
|
||||
#define MX6SX_PAD_GPIO1_IO09__OBSERVE_MUX_OUT_4 0x0038 0x0380 0x0000 0x7 0x0
|
||||
|
|
@ -213,7 +213,7 @@
|
|||
#define MX6SX_PAD_CSI_DATA07__ESAI_TX3_RX2 0x0068 0x03B0 0x079C 0x1 0x1
|
||||
#define MX6SX_PAD_CSI_DATA07__I2C4_SDA 0x0068 0x03B0 0x07C4 0x2 0x2
|
||||
#define MX6SX_PAD_CSI_DATA07__KPP_ROW_7 0x0068 0x03B0 0x07DC 0x3 0x0
|
||||
#define MX6SX_PAD_CSI_DATA07__UART6_CTS_B 0x0068 0x03B0 0x0854 0x4 0x1
|
||||
#define MX6SX_PAD_CSI_DATA07__UART6_CTS_B 0x0068 0x03B0 0x0000 0x4 0x0
|
||||
#define MX6SX_PAD_CSI_DATA07__GPIO1_IO_21 0x0068 0x03B0 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_CSI_DATA07__WEIM_DATA_16 0x0068 0x03B0 0x0000 0x6 0x0
|
||||
#define MX6SX_PAD_CSI_DATA07__DCIC1_OUT 0x0068 0x03B0 0x0000 0x7 0x0
|
||||
|
|
@ -254,7 +254,7 @@
|
|||
#define MX6SX_PAD_CSI_VSYNC__CSI1_VSYNC 0x0078 0x03C0 0x0708 0x0 0x0
|
||||
#define MX6SX_PAD_CSI_VSYNC__ESAI_TX5_RX0 0x0078 0x03C0 0x07A4 0x1 0x1
|
||||
#define MX6SX_PAD_CSI_VSYNC__AUDMUX_AUD6_RXD 0x0078 0x03C0 0x0674 0x2 0x1
|
||||
#define MX6SX_PAD_CSI_VSYNC__UART4_CTS_B 0x0078 0x03C0 0x0844 0x3 0x3
|
||||
#define MX6SX_PAD_CSI_VSYNC__UART4_CTS_B 0x0078 0x03C0 0x0000 0x3 0x0
|
||||
#define MX6SX_PAD_CSI_VSYNC__MQS_RIGHT 0x0078 0x03C0 0x0000 0x4 0x0
|
||||
#define MX6SX_PAD_CSI_VSYNC__GPIO1_IO_25 0x0078 0x03C0 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_CSI_VSYNC__WEIM_DATA_24 0x0078 0x03C0 0x0000 0x6 0x0
|
||||
|
|
@ -352,7 +352,7 @@
|
|||
#define MX6SX_PAD_ENET2_TX_CLK__ENET2_TX_CLK 0x00A0 0x03E8 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 0x00A0 0x03E8 0x076C 0x1 0x1
|
||||
#define MX6SX_PAD_ENET2_TX_CLK__I2C3_SDA 0x00A0 0x03E8 0x07BC 0x2 0x1
|
||||
#define MX6SX_PAD_ENET2_TX_CLK__UART1_CTS_B 0x00A0 0x03E8 0x082C 0x3 0x3
|
||||
#define MX6SX_PAD_ENET2_TX_CLK__UART1_CTS_B 0x00A0 0x03E8 0x0000 0x3 0x0
|
||||
#define MX6SX_PAD_ENET2_TX_CLK__MLB_CLK 0x00A0 0x03E8 0x07E8 0x4 0x1
|
||||
#define MX6SX_PAD_ENET2_TX_CLK__GPIO2_IO_9 0x00A0 0x03E8 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_ENET2_TX_CLK__USB_OTG2_PWR 0x00A0 0x03E8 0x0000 0x6 0x0
|
||||
|
|
@ -404,7 +404,7 @@
|
|||
#define MX6SX_PAD_KEY_COL4__SAI2_RX_BCLK 0x00B4 0x03FC 0x0808 0x7 0x0
|
||||
#define MX6SX_PAD_KEY_ROW0__KPP_ROW_0 0x00B8 0x0400 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_KEY_ROW0__USDHC3_WP 0x00B8 0x0400 0x0000 0x1 0x0
|
||||
#define MX6SX_PAD_KEY_ROW0__UART6_CTS_B 0x00B8 0x0400 0x0854 0x2 0x3
|
||||
#define MX6SX_PAD_KEY_ROW0__UART6_CTS_B 0x00B8 0x0400 0x0000 0x2 0x0
|
||||
#define MX6SX_PAD_KEY_ROW0__ECSPI1_MOSI 0x00B8 0x0400 0x0718 0x3 0x0
|
||||
#define MX6SX_PAD_KEY_ROW0__AUDMUX_AUD5_TXD 0x00B8 0x0400 0x0660 0x4 0x0
|
||||
#define MX6SX_PAD_KEY_ROW0__GPIO2_IO_15 0x00B8 0x0400 0x0000 0x5 0x0
|
||||
|
|
@ -423,7 +423,7 @@
|
|||
#define MX6SX_PAD_KEY_ROW1__M4_NMI 0x00BC 0x0404 0x0000 0x8 0x0
|
||||
#define MX6SX_PAD_KEY_ROW2__KPP_ROW_2 0x00C0 0x0408 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_KEY_ROW2__USDHC4_WP 0x00C0 0x0408 0x0878 0x1 0x1
|
||||
#define MX6SX_PAD_KEY_ROW2__UART5_CTS_B 0x00C0 0x0408 0x084C 0x2 0x3
|
||||
#define MX6SX_PAD_KEY_ROW2__UART5_CTS_B 0x00C0 0x0408 0x0000 0x2 0x0
|
||||
#define MX6SX_PAD_KEY_ROW2__CAN1_RX 0x00C0 0x0408 0x068C 0x3 0x1
|
||||
#define MX6SX_PAD_KEY_ROW2__CANFD_RX1 0x00C0 0x0408 0x0694 0x4 0x1
|
||||
#define MX6SX_PAD_KEY_ROW2__GPIO2_IO_17 0x00C0 0x0408 0x0000 0x5 0x0
|
||||
|
|
@ -815,7 +815,7 @@
|
|||
#define MX6SX_PAD_NAND_DATA05__RAWNAND_DATA05 0x0164 0x04AC 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_NAND_DATA05__USDHC2_DATA5 0x0164 0x04AC 0x0000 0x1 0x0
|
||||
#define MX6SX_PAD_NAND_DATA05__QSPI2_B_DQS 0x0164 0x04AC 0x0000 0x2 0x0
|
||||
#define MX6SX_PAD_NAND_DATA05__UART3_CTS_B 0x0164 0x04AC 0x083C 0x3 0x1
|
||||
#define MX6SX_PAD_NAND_DATA05__UART3_CTS_B 0x0164 0x04AC 0x0000 0x3 0x0
|
||||
#define MX6SX_PAD_NAND_DATA05__AUDMUX_AUD4_RXC 0x0164 0x04AC 0x064C 0x4 0x0
|
||||
#define MX6SX_PAD_NAND_DATA05__GPIO4_IO_9 0x0164 0x04AC 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_NAND_DATA05__WEIM_AD_5 0x0164 0x04AC 0x0000 0x6 0x0
|
||||
|
|
@ -957,7 +957,7 @@
|
|||
#define MX6SX_PAD_QSPI1A_SS1_B__SIM_M_HADDR_12 0x019C 0x04E4 0x0000 0x7 0x0
|
||||
#define MX6SX_PAD_QSPI1A_SS1_B__SDMA_DEBUG_PC_3 0x019C 0x04E4 0x0000 0x9 0x0
|
||||
#define MX6SX_PAD_QSPI1B_DATA0__QSPI1_B_DATA_0 0x01A0 0x04E8 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_QSPI1B_DATA0__UART3_CTS_B 0x01A0 0x04E8 0x083C 0x1 0x4
|
||||
#define MX6SX_PAD_QSPI1B_DATA0__UART3_CTS_B 0x01A0 0x04E8 0x0000 0x1 0x0
|
||||
#define MX6SX_PAD_QSPI1B_DATA0__ECSPI3_MOSI 0x01A0 0x04E8 0x0738 0x2 0x1
|
||||
#define MX6SX_PAD_QSPI1B_DATA0__ESAI_RX_FS 0x01A0 0x04E8 0x0778 0x3 0x2
|
||||
#define MX6SX_PAD_QSPI1B_DATA0__CSI1_DATA_22 0x01A0 0x04E8 0x06F4 0x4 0x1
|
||||
|
|
@ -1236,7 +1236,7 @@
|
|||
#define MX6SX_PAD_SD1_DATA2__AUDMUX_AUD5_TXFS 0x0230 0x0578 0x0670 0x1 0x1
|
||||
#define MX6SX_PAD_SD1_DATA2__PWM3_OUT 0x0230 0x0578 0x0000 0x2 0x0
|
||||
#define MX6SX_PAD_SD1_DATA2__GPT_COMPARE2 0x0230 0x0578 0x0000 0x3 0x0
|
||||
#define MX6SX_PAD_SD1_DATA2__UART2_CTS_B 0x0230 0x0578 0x0834 0x4 0x2
|
||||
#define MX6SX_PAD_SD1_DATA2__UART2_CTS_B 0x0230 0x0578 0x0000 0x4 0x0
|
||||
#define MX6SX_PAD_SD1_DATA2__GPIO6_IO_4 0x0230 0x0578 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_SD1_DATA2__ECSPI4_RDY 0x0230 0x0578 0x0000 0x6 0x0
|
||||
#define MX6SX_PAD_SD1_DATA2__CCM_OUT0 0x0230 0x0578 0x0000 0x7 0x0
|
||||
|
|
@ -1315,7 +1315,7 @@
|
|||
#define MX6SX_PAD_SD2_DATA3__VADC_CLAMP_CURRENT_3 0x024C 0x0594 0x0000 0x8 0x0
|
||||
#define MX6SX_PAD_SD2_DATA3__MMDC_DEBUG_31 0x024C 0x0594 0x0000 0x9 0x0
|
||||
#define MX6SX_PAD_SD3_CLK__USDHC3_CLK 0x0250 0x0598 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_SD3_CLK__UART4_CTS_B 0x0250 0x0598 0x0844 0x1 0x0
|
||||
#define MX6SX_PAD_SD3_CLK__UART4_CTS_B 0x0250 0x0598 0x0000 0x1 0x0
|
||||
#define MX6SX_PAD_SD3_CLK__ECSPI4_SCLK 0x0250 0x0598 0x0740 0x2 0x0
|
||||
#define MX6SX_PAD_SD3_CLK__AUDMUX_AUD6_RXFS 0x0250 0x0598 0x0680 0x3 0x0
|
||||
#define MX6SX_PAD_SD3_CLK__LCDIF2_VSYNC 0x0250 0x0598 0x0000 0x4 0x0
|
||||
|
|
@ -1409,7 +1409,7 @@
|
|||
#define MX6SX_PAD_SD3_DATA7__USDHC3_DATA7 0x0274 0x05BC 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_SD3_DATA7__CAN1_RX 0x0274 0x05BC 0x068C 0x1 0x0
|
||||
#define MX6SX_PAD_SD3_DATA7__CANFD_RX1 0x0274 0x05BC 0x0694 0x2 0x0
|
||||
#define MX6SX_PAD_SD3_DATA7__UART3_CTS_B 0x0274 0x05BC 0x083C 0x3 0x3
|
||||
#define MX6SX_PAD_SD3_DATA7__UART3_CTS_B 0x0274 0x05BC 0x0000 0x3 0x0
|
||||
#define MX6SX_PAD_SD3_DATA7__LCDIF2_DATA_5 0x0274 0x05BC 0x0000 0x4 0x0
|
||||
#define MX6SX_PAD_SD3_DATA7__GPIO7_IO_9 0x0274 0x05BC 0x0000 0x5 0x0
|
||||
#define MX6SX_PAD_SD3_DATA7__ENET1_1588_EVENT0_IN 0x0274 0x05BC 0x0000 0x6 0x0
|
||||
|
|
@ -1510,7 +1510,7 @@
|
|||
#define MX6SX_PAD_SD4_DATA6__SDMA_DEBUG_EVENT_CHANNEL_1 0x0298 0x05E0 0x0000 0x9 0x0
|
||||
#define MX6SX_PAD_SD4_DATA7__USDHC4_DATA7 0x029C 0x05E4 0x0000 0x0 0x0
|
||||
#define MX6SX_PAD_SD4_DATA7__RAWNAND_DATA08 0x029C 0x05E4 0x0000 0x1 0x0
|
||||
#define MX6SX_PAD_SD4_DATA7__UART5_CTS_B 0x029C 0x05E4 0x084C 0x2 0x1
|
||||
#define MX6SX_PAD_SD4_DATA7__UART5_CTS_B 0x029C 0x05E4 0x0000 0x2 0x0
|
||||
#define MX6SX_PAD_SD4_DATA7__ECSPI3_SS0 0x029C 0x05E4 0x073C 0x3 0x0
|
||||
#define MX6SX_PAD_SD4_DATA7__LCDIF2_DATA_15 0x029C 0x05E4 0x0000 0x4 0x0
|
||||
#define MX6SX_PAD_SD4_DATA7__GPIO6_IO_21 0x029C 0x05E4 0x0000 0x5 0x0
|
||||
|
|
|
|||
|
|
@ -292,6 +292,7 @@
|
|||
&uart3 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&uart3_pins>;
|
||||
interrupts-extended = <&intc 74 &omap3_pmx_core OMAP3_UART3_RX>;
|
||||
};
|
||||
|
||||
&gpio1 {
|
||||
|
|
|
|||
|
|
@ -93,7 +93,7 @@
|
|||
};
|
||||
|
||||
tv: connector {
|
||||
compatible = "composite-connector";
|
||||
compatible = "composite-video-connector";
|
||||
label = "tv";
|
||||
|
||||
port {
|
||||
|
|
@ -353,7 +353,7 @@
|
|||
};
|
||||
|
||||
twl_power: power {
|
||||
compatible = "ti,twl4030-power-n900";
|
||||
compatible = "ti,twl4030-power-n900", "ti,twl4030-power-idle-osc-off";
|
||||
ti,use_poweroff;
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -107,7 +107,7 @@
|
|||
#address-cells = <1>;
|
||||
#size-cells = <1>;
|
||||
reg = <1 0 0x08000000>;
|
||||
ti,nand-ecc-opt = "ham1";
|
||||
ti,nand-ecc-opt = "sw";
|
||||
nand-bus-width = <8>;
|
||||
gpmc,cs-on-ns = <0>;
|
||||
gpmc,cs-rd-off-ns = <36>;
|
||||
|
|
|
|||
|
|
@ -467,6 +467,7 @@
|
|||
ti,bit-shift = <0x1e>;
|
||||
reg = <0x0d00>;
|
||||
ti,set-bit-to-disable;
|
||||
ti,set-rate-parent;
|
||||
};
|
||||
|
||||
dpll4_m6_ck: dpll4_m6_ck {
|
||||
|
|
|
|||
|
|
@ -367,10 +367,12 @@
|
|||
|
||||
l3_iclk_div: l3_iclk_div {
|
||||
#clock-cells = <0>;
|
||||
compatible = "fixed-factor-clock";
|
||||
compatible = "ti,divider-clock";
|
||||
ti,max-div = <2>;
|
||||
ti,bit-shift = <4>;
|
||||
reg = <0x100>;
|
||||
clocks = <&dpll_core_h12x2_ck>;
|
||||
clock-mult = <1>;
|
||||
clock-div = <1>;
|
||||
ti,index-power-of-two;
|
||||
};
|
||||
|
||||
gpu_l3_iclk: gpu_l3_iclk {
|
||||
|
|
@ -383,10 +385,12 @@
|
|||
|
||||
l4_root_clk_div: l4_root_clk_div {
|
||||
#clock-cells = <0>;
|
||||
compatible = "fixed-factor-clock";
|
||||
compatible = "ti,divider-clock";
|
||||
ti,max-div = <2>;
|
||||
ti,bit-shift = <8>;
|
||||
reg = <0x100>;
|
||||
clocks = <&l3_iclk_div>;
|
||||
clock-mult = <1>;
|
||||
clock-div = <1>;
|
||||
ti,index-power-of-two;
|
||||
};
|
||||
|
||||
slimbus1_slimbus_clk: slimbus1_slimbus_clk {
|
||||
|
|
|
|||
|
|
@ -275,11 +275,6 @@
|
|||
renesas,function = "msiof0";
|
||||
};
|
||||
|
||||
i2c6_pins: i2c6 {
|
||||
renesas,groups = "i2c6";
|
||||
renesas,function = "i2c6";
|
||||
};
|
||||
|
||||
usb0_pins: usb0 {
|
||||
renesas,groups = "usb0";
|
||||
renesas,function = "usb0";
|
||||
|
|
@ -420,8 +415,6 @@
|
|||
};
|
||||
|
||||
&i2c6 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&i2c6_pins>;
|
||||
status = "okay";
|
||||
clock-frequency = <100000>;
|
||||
|
||||
|
|
|
|||
|
|
@ -149,6 +149,8 @@
|
|||
&mmc0 { /* sdmmc */
|
||||
num-slots = <1>;
|
||||
status = "okay";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
|
||||
vmmc-supply = <&vcc_sd0>;
|
||||
|
||||
slot@0 {
|
||||
|
|
|
|||
|
|
@ -179,6 +179,8 @@
|
|||
&mmc0 {
|
||||
num-slots = <1>;
|
||||
status = "okay";
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
|
||||
vmmc-supply = <&vcc_sd0>;
|
||||
|
||||
slot@0 {
|
||||
|
|
|
|||
|
|
@ -116,7 +116,6 @@
|
|||
msp2: msp@80117000 {
|
||||
pinctrl-names = "default";
|
||||
pinctrl-0 = <&msp2_default_mode>;
|
||||
status = "okay";
|
||||
};
|
||||
|
||||
msp3: msp@80125000 {
|
||||
|
|
|
|||
|
|
@ -660,6 +660,8 @@
|
|||
clock-frequency = <100000>;
|
||||
resets = <&apb2_rst 0>;
|
||||
status = "disabled";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
};
|
||||
|
||||
i2c1: i2c@01c2b000 {
|
||||
|
|
@ -670,6 +672,8 @@
|
|||
clock-frequency = <100000>;
|
||||
resets = <&apb2_rst 1>;
|
||||
status = "disabled";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
};
|
||||
|
||||
i2c2: i2c@01c2b400 {
|
||||
|
|
@ -680,6 +684,8 @@
|
|||
clock-frequency = <100000>;
|
||||
resets = <&apb2_rst 2>;
|
||||
status = "disabled";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
};
|
||||
|
||||
i2c3: i2c@01c2b800 {
|
||||
|
|
@ -690,6 +696,8 @@
|
|||
clock-frequency = <100000>;
|
||||
resets = <&apb2_rst 3>;
|
||||
status = "disabled";
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
};
|
||||
|
||||
gmac: ethernet@01c30000 {
|
||||
|
|
|
|||
|
|
@ -423,7 +423,7 @@
|
|||
vcc4-supply = <&sys_3v3_reg>;
|
||||
vcc5-supply = <&sys_3v3_reg>;
|
||||
vcc6-supply = <&vio_reg>;
|
||||
vcc7-supply = <&sys_5v0_reg>;
|
||||
vcc7-supply = <&charge_pump_5v0_reg>;
|
||||
vccio-supply = <&sys_3v3_reg>;
|
||||
|
||||
regulators {
|
||||
|
|
@ -674,5 +674,14 @@
|
|||
regulator-max-microvolt = <3300000>;
|
||||
regulator-always-on;
|
||||
};
|
||||
|
||||
charge_pump_5v0_reg: regulator@101 {
|
||||
compatible = "regulator-fixed";
|
||||
reg = <101>;
|
||||
regulator-name = "5v0";
|
||||
regulator-min-microvolt = <5000000>;
|
||||
regulator-max-microvolt = <5000000>;
|
||||
regulator-always-on;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -201,7 +201,7 @@
|
|||
vcc4-supply = <&sys_3v3_reg>;
|
||||
vcc5-supply = <&sys_3v3_reg>;
|
||||
vcc6-supply = <&vio_reg>;
|
||||
vcc7-supply = <&sys_5v0_reg>;
|
||||
vcc7-supply = <&charge_pump_5v0_reg>;
|
||||
vccio-supply = <&sys_3v3_reg>;
|
||||
|
||||
regulators {
|
||||
|
|
@ -373,5 +373,14 @@
|
|||
regulator-max-microvolt = <3300000>;
|
||||
regulator-always-on;
|
||||
};
|
||||
|
||||
charge_pump_5v0_reg: regulator@101 {
|
||||
compatible = "regulator-fixed";
|
||||
reg = <101>;
|
||||
regulator-name = "5v0";
|
||||
regulator-min-microvolt = <5000000>;
|
||||
regulator-max-microvolt = <5000000>;
|
||||
regulator-always-on;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -83,10 +83,6 @@
|
|||
regulator-always-on;
|
||||
};
|
||||
|
||||
clk32kg: regulator-clk32kg {
|
||||
compatible = "ti,twl6030-clk32kg";
|
||||
};
|
||||
|
||||
twl_usb_comparator: usb-comparator {
|
||||
compatible = "ti,twl6030-usb";
|
||||
interrupts = <4>, <10>;
|
||||
|
|
|
|||
|
|
@ -168,7 +168,7 @@
|
|||
};
|
||||
|
||||
pinctrl_esdhc1: esdhc1grp {
|
||||
fsl,fsl,pins = <
|
||||
fsl,pins = <
|
||||
VF610_PAD_PTA24__ESDHC1_CLK 0x31ef
|
||||
VF610_PAD_PTA25__ESDHC1_CMD 0x31ef
|
||||
VF610_PAD_PTA26__ESDHC1_DAT0 0x31ef
|
||||
|
|
|
|||
|
|
@ -1443,14 +1443,14 @@ void edma_assign_channel_eventq(unsigned channel, enum dma_event_q eventq_no)
|
|||
EXPORT_SYMBOL(edma_assign_channel_eventq);
|
||||
|
||||
static int edma_setup_from_hw(struct device *dev, struct edma_soc_info *pdata,
|
||||
struct edma *edma_cc)
|
||||
struct edma *edma_cc, int cc_id)
|
||||
{
|
||||
int i;
|
||||
u32 value, cccfg;
|
||||
s8 (*queue_priority_map)[2];
|
||||
|
||||
/* Decode the eDMA3 configuration from CCCFG register */
|
||||
cccfg = edma_read(0, EDMA_CCCFG);
|
||||
cccfg = edma_read(cc_id, EDMA_CCCFG);
|
||||
|
||||
value = GET_NUM_REGN(cccfg);
|
||||
edma_cc->num_region = BIT(value);
|
||||
|
|
@ -1464,7 +1464,8 @@ static int edma_setup_from_hw(struct device *dev, struct edma_soc_info *pdata,
|
|||
value = GET_NUM_EVQUE(cccfg);
|
||||
edma_cc->num_tc = value + 1;
|
||||
|
||||
dev_dbg(dev, "eDMA3 HW configuration (cccfg: 0x%08x):\n", cccfg);
|
||||
dev_dbg(dev, "eDMA3 CC%d HW configuration (cccfg: 0x%08x):\n", cc_id,
|
||||
cccfg);
|
||||
dev_dbg(dev, "num_region: %u\n", edma_cc->num_region);
|
||||
dev_dbg(dev, "num_channel: %u\n", edma_cc->num_channels);
|
||||
dev_dbg(dev, "num_slot: %u\n", edma_cc->num_slots);
|
||||
|
|
@ -1684,7 +1685,7 @@ static int edma_probe(struct platform_device *pdev)
|
|||
return -ENOMEM;
|
||||
|
||||
/* Get eDMA3 configuration from IP */
|
||||
ret = edma_setup_from_hw(dev, info[j], edma_cc[j]);
|
||||
ret = edma_setup_from_hw(dev, info[j], edma_cc[j], j);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
|
|
|
|||
|
|
@ -472,7 +472,6 @@ static inline void __sync_cache_range_r(volatile void *p, size_t size)
|
|||
"mcr p15, 0, r0, c1, c0, 0 @ set SCTLR \n\t" \
|
||||
"isb \n\t" \
|
||||
"bl v7_flush_dcache_"__stringify(level)" \n\t" \
|
||||
"clrex \n\t" \
|
||||
"mrc p15, 0, r0, c1, c0, 1 @ get ACTLR \n\t" \
|
||||
"bic r0, r0, #(1 << 6) @ disable local coherency \n\t" \
|
||||
"mcr p15, 0, r0, c1, c0, 1 @ set ACTLR \n\t" \
|
||||
|
|
|
|||
|
|
@ -74,6 +74,7 @@
|
|||
#define ARM_CPU_PART_CORTEX_A12 0x4100c0d0
|
||||
#define ARM_CPU_PART_CORTEX_A17 0x4100c0e0
|
||||
#define ARM_CPU_PART_CORTEX_A15 0x4100c0f0
|
||||
#define ARM_CPU_PART_MASK 0xff00fff0
|
||||
|
||||
#define ARM_CPU_XSCALE_ARCH_MASK 0xe000
|
||||
#define ARM_CPU_XSCALE_ARCH_V1 0x2000
|
||||
|
|
@ -179,7 +180,7 @@ static inline unsigned int __attribute_const__ read_cpuid_implementor(void)
|
|||
*/
|
||||
static inline unsigned int __attribute_const__ read_cpuid_part(void)
|
||||
{
|
||||
return read_cpuid_id() & 0xff00fff0;
|
||||
return read_cpuid_id() & ARM_CPU_PART_MASK;
|
||||
}
|
||||
|
||||
static inline unsigned int __attribute_const__ __deprecated read_cpuid_part_number(void)
|
||||
|
|
|
|||
|
|
@ -50,6 +50,7 @@ typedef struct user_fp elf_fpregset_t;
|
|||
#define R_ARM_ABS32 2
|
||||
#define R_ARM_CALL 28
|
||||
#define R_ARM_JUMP24 29
|
||||
#define R_ARM_TARGET1 38
|
||||
#define R_ARM_V4BX 40
|
||||
#define R_ARM_PREL31 42
|
||||
#define R_ARM_MOVW_ABS_NC 43
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@
|
|||
#include <linux/cpumask.h>
|
||||
#include <linux/err.h>
|
||||
|
||||
#include <asm/cpu.h>
|
||||
#include <asm/cputype.h>
|
||||
|
||||
/*
|
||||
|
|
@ -25,6 +26,20 @@ static inline bool is_smp(void)
|
|||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
* smp_cpuid_part() - return part id for a given cpu
|
||||
* @cpu: logical cpu id.
|
||||
*
|
||||
* Return: part id of logical cpu passed as argument.
|
||||
*/
|
||||
static inline unsigned int smp_cpuid_part(int cpu)
|
||||
{
|
||||
struct cpuinfo_arm *cpu_info = &per_cpu(cpu_data, cpu);
|
||||
|
||||
return is_smp() ? cpu_info->cpuid & ARM_CPU_PART_MASK :
|
||||
read_cpuid_part();
|
||||
}
|
||||
|
||||
/* all SMP configurations have the extended CPUID registers */
|
||||
#ifndef CONFIG_MMU
|
||||
#define tlb_ops_need_broadcast() 0
|
||||
|
|
|
|||
|
|
@ -1,6 +1,9 @@
|
|||
#ifndef __ASMARM_TLS_H
|
||||
#define __ASMARM_TLS_H
|
||||
|
||||
#include <linux/compiler.h>
|
||||
#include <asm/thread_info.h>
|
||||
|
||||
#ifdef __ASSEMBLY__
|
||||
#include <asm/asm-offsets.h>
|
||||
.macro switch_tls_none, base, tp, tpuser, tmp1, tmp2
|
||||
|
|
@ -50,6 +53,47 @@
|
|||
#endif
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
static inline void set_tls(unsigned long val)
|
||||
{
|
||||
struct thread_info *thread;
|
||||
|
||||
thread = current_thread_info();
|
||||
|
||||
thread->tp_value[0] = val;
|
||||
|
||||
/*
|
||||
* This code runs with preemption enabled and therefore must
|
||||
* be reentrant with respect to switch_tls.
|
||||
*
|
||||
* We need to ensure ordering between the shadow state and the
|
||||
* hardware state, so that we don't corrupt the hardware state
|
||||
* with a stale shadow state during context switch.
|
||||
*
|
||||
* If we're preempted here, switch_tls will load TPIDRURO from
|
||||
* thread_info upon resuming execution and the following mcr
|
||||
* is merely redundant.
|
||||
*/
|
||||
barrier();
|
||||
|
||||
if (!tls_emu) {
|
||||
if (has_tls_reg) {
|
||||
asm("mcr p15, 0, %0, c13, c0, 3"
|
||||
: : "r" (val));
|
||||
} else {
|
||||
/*
|
||||
* User space must never try to access this
|
||||
* directly. Expect your app to break
|
||||
* eventually if you do so. The user helper
|
||||
* at 0xffff0fe0 must be used instead. (see
|
||||
* entry-armv.S for details)
|
||||
*/
|
||||
*((unsigned int *)0xffff0ff0) = val;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
static inline unsigned long get_tpuser(void)
|
||||
{
|
||||
unsigned long reg = 0;
|
||||
|
|
@ -59,5 +103,23 @@ static inline unsigned long get_tpuser(void)
|
|||
|
||||
return reg;
|
||||
}
|
||||
|
||||
static inline void set_tpuser(unsigned long val)
|
||||
{
|
||||
/* Since TPIDRURW is fully context-switched (unlike TPIDRURO),
|
||||
* we need not update thread_info.
|
||||
*/
|
||||
if (has_tls_reg && !tls_emu) {
|
||||
asm("mcr p15, 0, %0, c13, c0, 2"
|
||||
: : "r" (val));
|
||||
}
|
||||
}
|
||||
|
||||
static inline void flush_tls(void)
|
||||
{
|
||||
set_tls(0);
|
||||
set_tpuser(0);
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif /* __ASMARM_TLS_H */
|
||||
|
|
|
|||
|
|
@ -107,8 +107,11 @@ static inline void set_fs(mm_segment_t fs)
|
|||
extern int __get_user_1(void *);
|
||||
extern int __get_user_2(void *);
|
||||
extern int __get_user_4(void *);
|
||||
extern int __get_user_lo8(void *);
|
||||
extern int __get_user_32t_8(void *);
|
||||
extern int __get_user_8(void *);
|
||||
extern int __get_user_64t_1(void *);
|
||||
extern int __get_user_64t_2(void *);
|
||||
extern int __get_user_64t_4(void *);
|
||||
|
||||
#define __GUP_CLOBBER_1 "lr", "cc"
|
||||
#ifdef CONFIG_CPU_USE_DOMAINS
|
||||
|
|
@ -117,7 +120,7 @@ extern int __get_user_8(void *);
|
|||
#define __GUP_CLOBBER_2 "lr", "cc"
|
||||
#endif
|
||||
#define __GUP_CLOBBER_4 "lr", "cc"
|
||||
#define __GUP_CLOBBER_lo8 "lr", "cc"
|
||||
#define __GUP_CLOBBER_32t_8 "lr", "cc"
|
||||
#define __GUP_CLOBBER_8 "lr", "cc"
|
||||
|
||||
#define __get_user_x(__r2,__p,__e,__l,__s) \
|
||||
|
|
@ -131,12 +134,30 @@ extern int __get_user_8(void *);
|
|||
|
||||
/* narrowing a double-word get into a single 32bit word register: */
|
||||
#ifdef __ARMEB__
|
||||
#define __get_user_xb(__r2, __p, __e, __l, __s) \
|
||||
__get_user_x(__r2, __p, __e, __l, lo8)
|
||||
#define __get_user_x_32t(__r2, __p, __e, __l, __s) \
|
||||
__get_user_x(__r2, __p, __e, __l, 32t_8)
|
||||
#else
|
||||
#define __get_user_xb __get_user_x
|
||||
#define __get_user_x_32t __get_user_x
|
||||
#endif
|
||||
|
||||
/*
|
||||
* storing result into proper least significant word of 64bit target var,
|
||||
* different only for big endian case where 64 bit __r2 lsw is r3:
|
||||
*/
|
||||
#ifdef __ARMEB__
|
||||
#define __get_user_x_64t(__r2, __p, __e, __l, __s) \
|
||||
__asm__ __volatile__ ( \
|
||||
__asmeq("%0", "r0") __asmeq("%1", "r2") \
|
||||
__asmeq("%3", "r1") \
|
||||
"bl __get_user_64t_" #__s \
|
||||
: "=&r" (__e), "=r" (__r2) \
|
||||
: "0" (__p), "r" (__l) \
|
||||
: __GUP_CLOBBER_##__s)
|
||||
#else
|
||||
#define __get_user_x_64t __get_user_x
|
||||
#endif
|
||||
|
||||
|
||||
#define __get_user_check(x,p) \
|
||||
({ \
|
||||
unsigned long __limit = current_thread_info()->addr_limit - 1; \
|
||||
|
|
@ -146,17 +167,26 @@ extern int __get_user_8(void *);
|
|||
register int __e asm("r0"); \
|
||||
switch (sizeof(*(__p))) { \
|
||||
case 1: \
|
||||
__get_user_x(__r2, __p, __e, __l, 1); \
|
||||
if (sizeof((x)) >= 8) \
|
||||
__get_user_x_64t(__r2, __p, __e, __l, 1); \
|
||||
else \
|
||||
__get_user_x(__r2, __p, __e, __l, 1); \
|
||||
break; \
|
||||
case 2: \
|
||||
__get_user_x(__r2, __p, __e, __l, 2); \
|
||||
if (sizeof((x)) >= 8) \
|
||||
__get_user_x_64t(__r2, __p, __e, __l, 2); \
|
||||
else \
|
||||
__get_user_x(__r2, __p, __e, __l, 2); \
|
||||
break; \
|
||||
case 4: \
|
||||
__get_user_x(__r2, __p, __e, __l, 4); \
|
||||
if (sizeof((x)) >= 8) \
|
||||
__get_user_x_64t(__r2, __p, __e, __l, 4); \
|
||||
else \
|
||||
__get_user_x(__r2, __p, __e, __l, 4); \
|
||||
break; \
|
||||
case 8: \
|
||||
if (sizeof((x)) < 8) \
|
||||
__get_user_xb(__r2, __p, __e, __l, 4); \
|
||||
__get_user_x_32t(__r2, __p, __e, __l, 4); \
|
||||
else \
|
||||
__get_user_x(__r2, __p, __e, __l, 8); \
|
||||
break; \
|
||||
|
|
|
|||
|
|
@ -26,25 +26,14 @@ static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
|
|||
__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
|
||||
}
|
||||
|
||||
static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
|
||||
void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
|
||||
size_t size, enum dma_data_direction dir,
|
||||
struct dma_attrs *attrs)
|
||||
{
|
||||
if (__generic_dma_ops(hwdev)->unmap_page)
|
||||
__generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs);
|
||||
}
|
||||
struct dma_attrs *attrs);
|
||||
|
||||
static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
|
||||
dma_addr_t handle, size_t size, enum dma_data_direction dir)
|
||||
{
|
||||
if (__generic_dma_ops(hwdev)->sync_single_for_cpu)
|
||||
__generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir);
|
||||
}
|
||||
void xen_dma_sync_single_for_cpu(struct device *hwdev,
|
||||
dma_addr_t handle, size_t size, enum dma_data_direction dir);
|
||||
|
||||
void xen_dma_sync_single_for_device(struct device *hwdev,
|
||||
dma_addr_t handle, size_t size, enum dma_data_direction dir);
|
||||
|
||||
static inline void xen_dma_sync_single_for_device(struct device *hwdev,
|
||||
dma_addr_t handle, size_t size, enum dma_data_direction dir)
|
||||
{
|
||||
if (__generic_dma_ops(hwdev)->sync_single_for_device)
|
||||
__generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir);
|
||||
}
|
||||
#endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */
|
||||
|
|
|
|||
|
|
@ -33,7 +33,6 @@ typedef struct xpaddr {
|
|||
#define INVALID_P2M_ENTRY (~0UL)
|
||||
|
||||
unsigned long __pfn_to_mfn(unsigned long pfn);
|
||||
unsigned long __mfn_to_pfn(unsigned long mfn);
|
||||
extern struct rb_root phys_to_mach;
|
||||
|
||||
static inline unsigned long pfn_to_mfn(unsigned long pfn)
|
||||
|
|
@ -51,14 +50,6 @@ static inline unsigned long pfn_to_mfn(unsigned long pfn)
|
|||
|
||||
static inline unsigned long mfn_to_pfn(unsigned long mfn)
|
||||
{
|
||||
unsigned long pfn;
|
||||
|
||||
if (phys_to_mach.rb_node != NULL) {
|
||||
pfn = __mfn_to_pfn(mfn);
|
||||
if (pfn != INVALID_P2M_ENTRY)
|
||||
return pfn;
|
||||
}
|
||||
|
||||
return mfn;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -98,6 +98,14 @@ EXPORT_SYMBOL(__clear_user);
|
|||
EXPORT_SYMBOL(__get_user_1);
|
||||
EXPORT_SYMBOL(__get_user_2);
|
||||
EXPORT_SYMBOL(__get_user_4);
|
||||
EXPORT_SYMBOL(__get_user_8);
|
||||
|
||||
#ifdef __ARMEB__
|
||||
EXPORT_SYMBOL(__get_user_64t_1);
|
||||
EXPORT_SYMBOL(__get_user_64t_2);
|
||||
EXPORT_SYMBOL(__get_user_64t_4);
|
||||
EXPORT_SYMBOL(__get_user_32t_8);
|
||||
#endif
|
||||
|
||||
EXPORT_SYMBOL(__put_user_1);
|
||||
EXPORT_SYMBOL(__put_user_2);
|
||||
|
|
|
|||
|
|
@ -208,26 +208,21 @@
|
|||
#endif
|
||||
.endif
|
||||
msr spsr_cxsf, \rpsr
|
||||
#if defined(CONFIG_CPU_V6)
|
||||
ldr r0, [sp]
|
||||
strex r1, r2, [sp] @ clear the exclusive monitor
|
||||
ldmib sp, {r1 - pc}^ @ load r1 - pc, cpsr
|
||||
#elif defined(CONFIG_CPU_32v6K)
|
||||
clrex @ clear the exclusive monitor
|
||||
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
|
||||
#else
|
||||
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
|
||||
#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_32v6K)
|
||||
@ We must avoid clrex due to Cortex-A15 erratum #830321
|
||||
sub r0, sp, #4 @ uninhabited address
|
||||
strex r1, r2, [r0] @ clear the exclusive monitor
|
||||
#endif
|
||||
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
|
||||
.endm
|
||||
|
||||
.macro restore_user_regs, fast = 0, offset = 0
|
||||
ldr r1, [sp, #\offset + S_PSR] @ get calling cpsr
|
||||
ldr lr, [sp, #\offset + S_PC]! @ get pc
|
||||
msr spsr_cxsf, r1 @ save in spsr_svc
|
||||
#if defined(CONFIG_CPU_V6)
|
||||
#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_32v6K)
|
||||
@ We must avoid clrex due to Cortex-A15 erratum #830321
|
||||
strex r1, r2, [sp] @ clear the exclusive monitor
|
||||
#elif defined(CONFIG_CPU_32v6K)
|
||||
clrex @ clear the exclusive monitor
|
||||
#endif
|
||||
.if \fast
|
||||
ldmdb sp, {r1 - lr}^ @ get calling r1 - lr
|
||||
|
|
@ -261,7 +256,10 @@
|
|||
.endif
|
||||
ldr lr, [sp, #S_SP] @ top of the stack
|
||||
ldrd r0, r1, [sp, #S_LR] @ calling lr and pc
|
||||
clrex @ clear the exclusive monitor
|
||||
|
||||
@ We must avoid clrex due to Cortex-A15 erratum #830321
|
||||
strex r2, r1, [sp, #S_LR] @ clear the exclusive monitor
|
||||
|
||||
stmdb lr!, {r0, r1, \rpsr} @ calling lr and rfe context
|
||||
ldmia sp, {r0 - r12}
|
||||
mov sp, lr
|
||||
|
|
@ -282,13 +280,16 @@
|
|||
.endm
|
||||
#else /* ifdef CONFIG_CPU_V7M */
|
||||
.macro restore_user_regs, fast = 0, offset = 0
|
||||
clrex @ clear the exclusive monitor
|
||||
mov r2, sp
|
||||
load_user_sp_lr r2, r3, \offset + S_SP @ calling sp, lr
|
||||
ldr r1, [sp, #\offset + S_PSR] @ get calling cpsr
|
||||
ldr lr, [sp, #\offset + S_PC] @ get pc
|
||||
add sp, sp, #\offset + S_SP
|
||||
msr spsr_cxsf, r1 @ save in spsr_svc
|
||||
|
||||
@ We must avoid clrex due to Cortex-A15 erratum #830321
|
||||
strex r1, r2, [sp] @ clear the exclusive monitor
|
||||
|
||||
.if \fast
|
||||
ldmdb sp, {r1 - r12} @ get calling r1 - r12
|
||||
.else
|
||||
|
|
|
|||
|
|
@ -175,7 +175,7 @@ static bool migrate_one_irq(struct irq_desc *desc)
|
|||
c = irq_data_get_irq_chip(d);
|
||||
if (!c->irq_set_affinity)
|
||||
pr_debug("IRQ%u: unable to set affinity\n", d->irq);
|
||||
else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret)
|
||||
else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret)
|
||||
cpumask_copy(d->affinity, affinity);
|
||||
|
||||
return ret;
|
||||
|
|
|
|||
|
|
@ -91,6 +91,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
|
|||
break;
|
||||
|
||||
case R_ARM_ABS32:
|
||||
case R_ARM_TARGET1:
|
||||
*(u32 *)loc += sym->st_value;
|
||||
break;
|
||||
|
||||
|
|
|
|||
|
|
@ -76,21 +76,15 @@ static struct pmu_hw_events *cpu_pmu_get_cpu_events(void)
|
|||
|
||||
static void cpu_pmu_enable_percpu_irq(void *data)
|
||||
{
|
||||
struct arm_pmu *cpu_pmu = data;
|
||||
struct platform_device *pmu_device = cpu_pmu->plat_device;
|
||||
int irq = platform_get_irq(pmu_device, 0);
|
||||
int irq = *(int *)data;
|
||||
|
||||
enable_percpu_irq(irq, IRQ_TYPE_NONE);
|
||||
cpumask_set_cpu(smp_processor_id(), &cpu_pmu->active_irqs);
|
||||
}
|
||||
|
||||
static void cpu_pmu_disable_percpu_irq(void *data)
|
||||
{
|
||||
struct arm_pmu *cpu_pmu = data;
|
||||
struct platform_device *pmu_device = cpu_pmu->plat_device;
|
||||
int irq = platform_get_irq(pmu_device, 0);
|
||||
int irq = *(int *)data;
|
||||
|
||||
cpumask_clear_cpu(smp_processor_id(), &cpu_pmu->active_irqs);
|
||||
disable_percpu_irq(irq);
|
||||
}
|
||||
|
||||
|
|
@ -103,7 +97,7 @@ static void cpu_pmu_free_irq(struct arm_pmu *cpu_pmu)
|
|||
|
||||
irq = platform_get_irq(pmu_device, 0);
|
||||
if (irq >= 0 && irq_is_percpu(irq)) {
|
||||
on_each_cpu(cpu_pmu_disable_percpu_irq, cpu_pmu, 1);
|
||||
on_each_cpu(cpu_pmu_disable_percpu_irq, &irq, 1);
|
||||
free_percpu_irq(irq, &percpu_pmu);
|
||||
} else {
|
||||
for (i = 0; i < irqs; ++i) {
|
||||
|
|
@ -138,7 +132,7 @@ static int cpu_pmu_request_irq(struct arm_pmu *cpu_pmu, irq_handler_t handler)
|
|||
irq);
|
||||
return err;
|
||||
}
|
||||
on_each_cpu(cpu_pmu_enable_percpu_irq, cpu_pmu, 1);
|
||||
on_each_cpu(cpu_pmu_enable_percpu_irq, &irq, 1);
|
||||
} else {
|
||||
for (i = 0; i < irqs; ++i) {
|
||||
err = 0;
|
||||
|
|
|
|||
|
|
@ -334,6 +334,8 @@ void flush_thread(void)
|
|||
memset(&tsk->thread.debug, 0, sizeof(struct debug_info));
|
||||
memset(&thread->fpstate, 0, sizeof(union fp_state));
|
||||
|
||||
flush_tls();
|
||||
|
||||
thread_notify(THREAD_NOTIFY_FLUSH, thread);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -142,14 +142,6 @@ static int emulate_swpX(unsigned int address, unsigned int *data,
|
|||
while (1) {
|
||||
unsigned long temp;
|
||||
|
||||
/*
|
||||
* Barrier required between accessing protected resource and
|
||||
* releasing a lock for it. Legacy code might not have done
|
||||
* this, and we cannot determine that this is not the case
|
||||
* being emulated, so insert always.
|
||||
*/
|
||||
smp_mb();
|
||||
|
||||
if (type == TYPE_SWPB)
|
||||
__user_swpb_asm(*data, address, res, temp);
|
||||
else
|
||||
|
|
@ -162,13 +154,6 @@ static int emulate_swpX(unsigned int address, unsigned int *data,
|
|||
}
|
||||
|
||||
if (res == 0) {
|
||||
/*
|
||||
* Barrier also required between acquiring a lock for a
|
||||
* protected resource and accessing the resource. Inserted for
|
||||
* same reason as above.
|
||||
*/
|
||||
smp_mb();
|
||||
|
||||
if (type == TYPE_SWPB)
|
||||
swpbcounter++;
|
||||
else
|
||||
|
|
|
|||
|
|
@ -45,7 +45,7 @@ static int thumbee_notifier(struct notifier_block *self, unsigned long cmd, void
|
|||
|
||||
switch (cmd) {
|
||||
case THREAD_NOTIFY_FLUSH:
|
||||
thread->thumbee_state = 0;
|
||||
teehbr_write(0);
|
||||
break;
|
||||
case THREAD_NOTIFY_SWITCH:
|
||||
current_thread_info()->thumbee_state = teehbr_read();
|
||||
|
|
|
|||
|
|
@ -581,7 +581,6 @@ do_cache_op(unsigned long start, unsigned long end, int flags)
|
|||
#define NR(x) ((__ARM_NR_##x) - __ARM_NR_BASE)
|
||||
asmlinkage int arm_syscall(int no, struct pt_regs *regs)
|
||||
{
|
||||
struct thread_info *thread = current_thread_info();
|
||||
siginfo_t info;
|
||||
|
||||
if ((no >> 16) != (__ARM_NR_BASE>> 16))
|
||||
|
|
@ -632,21 +631,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
|
|||
return regs->ARM_r0;
|
||||
|
||||
case NR(set_tls):
|
||||
thread->tp_value[0] = regs->ARM_r0;
|
||||
if (tls_emu)
|
||||
return 0;
|
||||
if (has_tls_reg) {
|
||||
asm ("mcr p15, 0, %0, c13, c0, 3"
|
||||
: : "r" (regs->ARM_r0));
|
||||
} else {
|
||||
/*
|
||||
* User space must never try to access this directly.
|
||||
* Expect your app to break eventually if you do so.
|
||||
* The user helper at 0xffff0fe0 must be used instead.
|
||||
* (see entry-armv.S for details)
|
||||
*/
|
||||
*((unsigned int *)0xffff0ff0) = regs->ARM_r0;
|
||||
}
|
||||
set_tls(regs->ARM_r0);
|
||||
return 0;
|
||||
|
||||
#ifdef CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG
|
||||
|
|
|
|||
|
|
@ -93,6 +93,8 @@ static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
|
|||
else
|
||||
kvm_vcpu_block(vcpu);
|
||||
|
||||
kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu));
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -99,6 +99,10 @@ __do_hyp_init:
|
|||
mrc p15, 0, r0, c10, c2, 1
|
||||
mcr p15, 4, r0, c10, c2, 1
|
||||
|
||||
@ Invalidate the stale TLBs from Bootloader
|
||||
mcr p15, 4, r0, c8, c7, 0 @ TLBIALLH
|
||||
dsb ish
|
||||
|
||||
@ Set the HSCTLR to:
|
||||
@ - ARM/THUMB exceptions: Kernel config (Thumb-2 kernel)
|
||||
@ - Endianness: Kernel config
|
||||
|
|
|
|||
|
|
@ -80,7 +80,7 @@ ENTRY(__get_user_8)
|
|||
ENDPROC(__get_user_8)
|
||||
|
||||
#ifdef __ARMEB__
|
||||
ENTRY(__get_user_lo8)
|
||||
ENTRY(__get_user_32t_8)
|
||||
check_uaccess r0, 8, r1, r2, __get_user_bad
|
||||
#ifdef CONFIG_CPU_USE_DOMAINS
|
||||
add r0, r0, #4
|
||||
|
|
@ -90,7 +90,37 @@ ENTRY(__get_user_lo8)
|
|||
#endif
|
||||
mov r0, #0
|
||||
ret lr
|
||||
ENDPROC(__get_user_lo8)
|
||||
ENDPROC(__get_user_32t_8)
|
||||
|
||||
ENTRY(__get_user_64t_1)
|
||||
check_uaccess r0, 1, r1, r2, __get_user_bad8
|
||||
8: TUSER(ldrb) r3, [r0]
|
||||
mov r0, #0
|
||||
ret lr
|
||||
ENDPROC(__get_user_64t_1)
|
||||
|
||||
ENTRY(__get_user_64t_2)
|
||||
check_uaccess r0, 2, r1, r2, __get_user_bad8
|
||||
#ifdef CONFIG_CPU_USE_DOMAINS
|
||||
rb .req ip
|
||||
9: ldrbt r3, [r0], #1
|
||||
10: ldrbt rb, [r0], #0
|
||||
#else
|
||||
rb .req r0
|
||||
9: ldrb r3, [r0]
|
||||
10: ldrb rb, [r0, #1]
|
||||
#endif
|
||||
orr r3, rb, r3, lsl #8
|
||||
mov r0, #0
|
||||
ret lr
|
||||
ENDPROC(__get_user_64t_2)
|
||||
|
||||
ENTRY(__get_user_64t_4)
|
||||
check_uaccess r0, 4, r1, r2, __get_user_bad8
|
||||
11: TUSER(ldr) r3, [r0]
|
||||
mov r0, #0
|
||||
ret lr
|
||||
ENDPROC(__get_user_64t_4)
|
||||
#endif
|
||||
|
||||
__get_user_bad8:
|
||||
|
|
@ -111,5 +141,9 @@ ENDPROC(__get_user_bad8)
|
|||
.long 6b, __get_user_bad8
|
||||
#ifdef __ARMEB__
|
||||
.long 7b, __get_user_bad
|
||||
.long 8b, __get_user_bad8
|
||||
.long 9b, __get_user_bad8
|
||||
.long 10b, __get_user_bad8
|
||||
.long 11b, __get_user_bad8
|
||||
#endif
|
||||
.popsection
|
||||
|
|
|
|||
|
|
@ -14,6 +14,7 @@
|
|||
#include <linux/gpio.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_irq.h>
|
||||
#include <linux/clk-provider.h>
|
||||
|
||||
#include <asm/setup.h>
|
||||
#include <asm/irq.h>
|
||||
|
|
@ -35,13 +36,21 @@ static void __init at91rm9200_dt_init_irq(void)
|
|||
of_irq_init(irq_of_match);
|
||||
}
|
||||
|
||||
static void __init at91rm9200_dt_timer_init(void)
|
||||
{
|
||||
#if defined(CONFIG_COMMON_CLK)
|
||||
of_clk_init(NULL);
|
||||
#endif
|
||||
at91rm9200_timer_init();
|
||||
}
|
||||
|
||||
static const char *at91rm9200_dt_board_compat[] __initdata = {
|
||||
"atmel,at91rm9200",
|
||||
NULL
|
||||
};
|
||||
|
||||
DT_MACHINE_START(at91rm9200_dt, "Atmel AT91RM9200 (Device Tree)")
|
||||
.init_time = at91rm9200_timer_init,
|
||||
.init_time = at91rm9200_dt_timer_init,
|
||||
.map_io = at91_map_io,
|
||||
.handle_irq = at91_aic_handle_irq,
|
||||
.init_early = at91rm9200_dt_initialize,
|
||||
|
|
|
|||
|
|
@ -36,5 +36,4 @@ obj-$(CONFIG_ARCH_BCM_5301X) += bcm_5301x.o
|
|||
|
||||
ifeq ($(CONFIG_ARCH_BRCMSTB),y)
|
||||
obj-y += brcmstb.o
|
||||
obj-$(CONFIG_SMP) += headsmp-brcmstb.o platsmp-brcmstb.o
|
||||
endif
|
||||
|
|
|
|||
|
|
@ -1,19 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2013-2014 Broadcom Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation version 2.
|
||||
*
|
||||
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
||||
* kind, whether express or implied; without even the implied warranty
|
||||
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
#ifndef __BRCMSTB_H__
|
||||
#define __BRCMSTB_H__
|
||||
|
||||
void brcmstb_secondary_startup(void);
|
||||
|
||||
#endif /* __BRCMSTB_H__ */
|
||||
|
|
@ -1,33 +0,0 @@
|
|||
/*
|
||||
* SMP boot code for secondary CPUs
|
||||
* Based on arch/arm/mach-tegra/headsmp.S
|
||||
*
|
||||
* Copyright (C) 2010 NVIDIA, Inc.
|
||||
* Copyright (C) 2013-2014 Broadcom Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation version 2.
|
||||
*
|
||||
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
||||
* kind, whether express or implied; without even the implied warranty
|
||||
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
#include <asm/assembler.h>
|
||||
#include <linux/linkage.h>
|
||||
#include <linux/init.h>
|
||||
|
||||
.section ".text.head", "ax"
|
||||
|
||||
ENTRY(brcmstb_secondary_startup)
|
||||
/*
|
||||
* Ensure CPU is in a sane state by disabling all IRQs and switching
|
||||
* into SVC mode.
|
||||
*/
|
||||
setmode PSR_I_BIT | PSR_F_BIT | SVC_MODE, r0
|
||||
|
||||
bl v7_invalidate_l1
|
||||
b secondary_startup
|
||||
ENDPROC(brcmstb_secondary_startup)
|
||||
|
|
@ -1,363 +0,0 @@
|
|||
/*
|
||||
* Broadcom STB CPU SMP and hotplug support for ARM
|
||||
*
|
||||
* Copyright (C) 2013-2014 Broadcom Corporation
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation version 2.
|
||||
*
|
||||
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
||||
* kind, whether express or implied; without even the implied warranty
|
||||
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
#include <linux/delay.h>
|
||||
#include <linux/errno.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/printk.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/smp.h>
|
||||
#include <linux/mfd/syscon.h>
|
||||
#include <linux/spinlock.h>
|
||||
|
||||
#include <asm/cacheflush.h>
|
||||
#include <asm/cp15.h>
|
||||
#include <asm/mach-types.h>
|
||||
#include <asm/smp_plat.h>
|
||||
|
||||
#include "brcmstb.h"
|
||||
|
||||
enum {
|
||||
ZONE_MAN_CLKEN_MASK = BIT(0),
|
||||
ZONE_MAN_RESET_CNTL_MASK = BIT(1),
|
||||
ZONE_MAN_MEM_PWR_MASK = BIT(4),
|
||||
ZONE_RESERVED_1_MASK = BIT(5),
|
||||
ZONE_MAN_ISO_CNTL_MASK = BIT(6),
|
||||
ZONE_MANUAL_CONTROL_MASK = BIT(7),
|
||||
ZONE_PWR_DN_REQ_MASK = BIT(9),
|
||||
ZONE_PWR_UP_REQ_MASK = BIT(10),
|
||||
ZONE_BLK_RST_ASSERT_MASK = BIT(12),
|
||||
ZONE_PWR_OFF_STATE_MASK = BIT(25),
|
||||
ZONE_PWR_ON_STATE_MASK = BIT(26),
|
||||
ZONE_DPG_PWR_STATE_MASK = BIT(28),
|
||||
ZONE_MEM_PWR_STATE_MASK = BIT(29),
|
||||
ZONE_RESET_STATE_MASK = BIT(31),
|
||||
CPU0_PWR_ZONE_CTRL_REG = 1,
|
||||
CPU_RESET_CONFIG_REG = 2,
|
||||
};
|
||||
|
||||
static void __iomem *cpubiuctrl_block;
|
||||
static void __iomem *hif_cont_block;
|
||||
static u32 cpu0_pwr_zone_ctrl_reg;
|
||||
static u32 cpu_rst_cfg_reg;
|
||||
static u32 hif_cont_reg;
|
||||
|
||||
#ifdef CONFIG_HOTPLUG_CPU
|
||||
static DEFINE_PER_CPU_ALIGNED(int, per_cpu_sw_state);
|
||||
|
||||
static int per_cpu_sw_state_rd(u32 cpu)
|
||||
{
|
||||
sync_cache_r(SHIFT_PERCPU_PTR(&per_cpu_sw_state, per_cpu_offset(cpu)));
|
||||
return per_cpu(per_cpu_sw_state, cpu);
|
||||
}
|
||||
|
||||
static void per_cpu_sw_state_wr(u32 cpu, int val)
|
||||
{
|
||||
per_cpu(per_cpu_sw_state, cpu) = val;
|
||||
dmb();
|
||||
sync_cache_w(SHIFT_PERCPU_PTR(&per_cpu_sw_state, per_cpu_offset(cpu)));
|
||||
dsb_sev();
|
||||
}
|
||||
#else
|
||||
static inline void per_cpu_sw_state_wr(u32 cpu, int val) { }
|
||||
#endif
|
||||
|
||||
static void __iomem *pwr_ctrl_get_base(u32 cpu)
|
||||
{
|
||||
void __iomem *base = cpubiuctrl_block + cpu0_pwr_zone_ctrl_reg;
|
||||
base += (cpu_logical_map(cpu) * 4);
|
||||
return base;
|
||||
}
|
||||
|
||||
static u32 pwr_ctrl_rd(u32 cpu)
|
||||
{
|
||||
void __iomem *base = pwr_ctrl_get_base(cpu);
|
||||
return readl_relaxed(base);
|
||||
}
|
||||
|
||||
static void pwr_ctrl_wr(u32 cpu, u32 val)
|
||||
{
|
||||
void __iomem *base = pwr_ctrl_get_base(cpu);
|
||||
writel(val, base);
|
||||
}
|
||||
|
||||
static void cpu_rst_cfg_set(u32 cpu, int set)
|
||||
{
|
||||
u32 val;
|
||||
val = readl_relaxed(cpubiuctrl_block + cpu_rst_cfg_reg);
|
||||
if (set)
|
||||
val |= BIT(cpu_logical_map(cpu));
|
||||
else
|
||||
val &= ~BIT(cpu_logical_map(cpu));
|
||||
writel_relaxed(val, cpubiuctrl_block + cpu_rst_cfg_reg);
|
||||
}
|
||||
|
||||
static void cpu_set_boot_addr(u32 cpu, unsigned long boot_addr)
|
||||
{
|
||||
const int reg_ofs = cpu_logical_map(cpu) * 8;
|
||||
writel_relaxed(0, hif_cont_block + hif_cont_reg + reg_ofs);
|
||||
writel_relaxed(boot_addr, hif_cont_block + hif_cont_reg + 4 + reg_ofs);
|
||||
}
|
||||
|
||||
static void brcmstb_cpu_boot(u32 cpu)
|
||||
{
|
||||
pr_info("SMP: Booting CPU%d...\n", cpu);
|
||||
|
||||
/*
|
||||
* set the reset vector to point to the secondary_startup
|
||||
* routine
|
||||
*/
|
||||
cpu_set_boot_addr(cpu, virt_to_phys(brcmstb_secondary_startup));
|
||||
|
||||
/* unhalt the cpu */
|
||||
cpu_rst_cfg_set(cpu, 0);
|
||||
}
|
||||
|
||||
static void brcmstb_cpu_power_on(u32 cpu)
|
||||
{
|
||||
/*
|
||||
* The secondary cores power was cut, so we must go through
|
||||
* power-on initialization.
|
||||
*/
|
||||
u32 tmp;
|
||||
|
||||
pr_info("SMP: Powering up CPU%d...\n", cpu);
|
||||
|
||||
/* Request zone power up */
|
||||
pwr_ctrl_wr(cpu, ZONE_PWR_UP_REQ_MASK);
|
||||
|
||||
/* Wait for the power up FSM to complete */
|
||||
do {
|
||||
tmp = pwr_ctrl_rd(cpu);
|
||||
} while (!(tmp & ZONE_PWR_ON_STATE_MASK));
|
||||
|
||||
per_cpu_sw_state_wr(cpu, 1);
|
||||
}
|
||||
|
||||
static int brcmstb_cpu_get_power_state(u32 cpu)
|
||||
{
|
||||
int tmp = pwr_ctrl_rd(cpu);
|
||||
return (tmp & ZONE_RESET_STATE_MASK) ? 0 : 1;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_HOTPLUG_CPU
|
||||
|
||||
static void brcmstb_cpu_die(u32 cpu)
|
||||
{
|
||||
v7_exit_coherency_flush(all);
|
||||
|
||||
/* Prevent all interrupts from reaching this CPU. */
|
||||
arch_local_irq_disable();
|
||||
|
||||
/*
|
||||
* Final full barrier to ensure everything before this instruction has
|
||||
* quiesced.
|
||||
*/
|
||||
isb();
|
||||
dsb();
|
||||
|
||||
per_cpu_sw_state_wr(cpu, 0);
|
||||
|
||||
/* Sit and wait to die */
|
||||
wfi();
|
||||
|
||||
/* We should never get here... */
|
||||
panic("Spurious interrupt on CPU %d received!\n", cpu);
|
||||
}
|
||||
|
||||
static int brcmstb_cpu_kill(u32 cpu)
|
||||
{
|
||||
u32 tmp;
|
||||
|
||||
pr_info("SMP: Powering down CPU%d...\n", cpu);
|
||||
|
||||
while (per_cpu_sw_state_rd(cpu))
|
||||
;
|
||||
|
||||
/* Program zone reset */
|
||||
pwr_ctrl_wr(cpu, ZONE_RESET_STATE_MASK | ZONE_BLK_RST_ASSERT_MASK |
|
||||
ZONE_PWR_DN_REQ_MASK);
|
||||
|
||||
/* Verify zone reset */
|
||||
tmp = pwr_ctrl_rd(cpu);
|
||||
if (!(tmp & ZONE_RESET_STATE_MASK))
|
||||
pr_err("%s: Zone reset bit for CPU %d not asserted!\n",
|
||||
__func__, cpu);
|
||||
|
||||
/* Wait for power down */
|
||||
do {
|
||||
tmp = pwr_ctrl_rd(cpu);
|
||||
} while (!(tmp & ZONE_PWR_OFF_STATE_MASK));
|
||||
|
||||
/* Settle-time from Broadcom-internal DVT reference code */
|
||||
udelay(7);
|
||||
|
||||
/* Assert reset on the CPU */
|
||||
cpu_rst_cfg_set(cpu, 1);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_HOTPLUG_CPU */
|
||||
|
||||
static int __init setup_hifcpubiuctrl_regs(struct device_node *np)
|
||||
{
|
||||
int rc = 0;
|
||||
char *name;
|
||||
struct device_node *syscon_np = NULL;
|
||||
|
||||
name = "syscon-cpu";
|
||||
|
||||
syscon_np = of_parse_phandle(np, name, 0);
|
||||
if (!syscon_np) {
|
||||
pr_err("can't find phandle %s\n", name);
|
||||
rc = -EINVAL;
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
cpubiuctrl_block = of_iomap(syscon_np, 0);
|
||||
if (!cpubiuctrl_block) {
|
||||
pr_err("iomap failed for cpubiuctrl_block\n");
|
||||
rc = -EINVAL;
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
rc = of_property_read_u32_index(np, name, CPU0_PWR_ZONE_CTRL_REG,
|
||||
&cpu0_pwr_zone_ctrl_reg);
|
||||
if (rc) {
|
||||
pr_err("failed to read 1st entry from %s property (%d)\n", name,
|
||||
rc);
|
||||
rc = -EINVAL;
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
rc = of_property_read_u32_index(np, name, CPU_RESET_CONFIG_REG,
|
||||
&cpu_rst_cfg_reg);
|
||||
if (rc) {
|
||||
pr_err("failed to read 2nd entry from %s property (%d)\n", name,
|
||||
rc);
|
||||
rc = -EINVAL;
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
cleanup:
|
||||
if (syscon_np)
|
||||
of_node_put(syscon_np);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int __init setup_hifcont_regs(struct device_node *np)
|
||||
{
|
||||
int rc = 0;
|
||||
char *name;
|
||||
struct device_node *syscon_np = NULL;
|
||||
|
||||
name = "syscon-cont";
|
||||
|
||||
syscon_np = of_parse_phandle(np, name, 0);
|
||||
if (!syscon_np) {
|
||||
pr_err("can't find phandle %s\n", name);
|
||||
rc = -EINVAL;
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
hif_cont_block = of_iomap(syscon_np, 0);
|
||||
if (!hif_cont_block) {
|
||||
pr_err("iomap failed for hif_cont_block\n");
|
||||
rc = -EINVAL;
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
/* offset is at top of hif_cont_block */
|
||||
hif_cont_reg = 0;
|
||||
|
||||
cleanup:
|
||||
if (syscon_np)
|
||||
of_node_put(syscon_np);
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
static void __init brcmstb_cpu_ctrl_setup(unsigned int max_cpus)
|
||||
{
|
||||
int rc;
|
||||
struct device_node *np;
|
||||
char *name;
|
||||
|
||||
name = "brcm,brcmstb-smpboot";
|
||||
np = of_find_compatible_node(NULL, NULL, name);
|
||||
if (!np) {
|
||||
pr_err("can't find compatible node %s\n", name);
|
||||
return;
|
||||
}
|
||||
|
||||
rc = setup_hifcpubiuctrl_regs(np);
|
||||
if (rc)
|
||||
return;
|
||||
|
||||
rc = setup_hifcont_regs(np);
|
||||
if (rc)
|
||||
return;
|
||||
}
|
||||
|
||||
static DEFINE_SPINLOCK(boot_lock);
|
||||
|
||||
static void brcmstb_secondary_init(unsigned int cpu)
|
||||
{
|
||||
/*
|
||||
* Synchronise with the boot thread.
|
||||
*/
|
||||
spin_lock(&boot_lock);
|
||||
spin_unlock(&boot_lock);
|
||||
}
|
||||
|
||||
static int brcmstb_boot_secondary(unsigned int cpu, struct task_struct *idle)
|
||||
{
|
||||
/*
|
||||
* set synchronisation state between this boot processor
|
||||
* and the secondary one
|
||||
*/
|
||||
spin_lock(&boot_lock);
|
||||
|
||||
/* Bring up power to the core if necessary */
|
||||
if (brcmstb_cpu_get_power_state(cpu) == 0)
|
||||
brcmstb_cpu_power_on(cpu);
|
||||
|
||||
brcmstb_cpu_boot(cpu);
|
||||
|
||||
/*
|
||||
* now the secondary core is starting up let it run its
|
||||
* calibrations, then wait for it to finish
|
||||
*/
|
||||
spin_unlock(&boot_lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct smp_operations brcmstb_smp_ops __initdata = {
|
||||
.smp_prepare_cpus = brcmstb_cpu_ctrl_setup,
|
||||
.smp_secondary_init = brcmstb_secondary_init,
|
||||
.smp_boot_secondary = brcmstb_boot_secondary,
|
||||
#ifdef CONFIG_HOTPLUG_CPU
|
||||
.cpu_kill = brcmstb_cpu_kill,
|
||||
.cpu_die = brcmstb_cpu_die,
|
||||
#endif
|
||||
};
|
||||
|
||||
CPU_METHOD_OF_DECLARE(brcmstb_smp, "brcm,brahma-b15", &brcmstb_smp_ops);
|
||||
|
|
@ -43,7 +43,6 @@
|
|||
"mcr p15, 0, r0, c1, c0, 0 @ set SCTLR\n\t" \
|
||||
"isb\n\t"\
|
||||
"bl v7_flush_dcache_"__stringify(level)"\n\t" \
|
||||
"clrex\n\t"\
|
||||
"mrc p15, 0, r0, c1, c0, 1 @ get ACTLR\n\t" \
|
||||
"bic r0, r0, #(1 << 6) @ disable local coherency\n\t" \
|
||||
/* Dummy Load of a device register to avoid Erratum 799270 */ \
|
||||
|
|
|
|||
Some files were not shown because too many files have changed in this diff Show More
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Reference in New Issue