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kernel_linux
提交 ea2a6af5 编写于 作者: I Ingo Molnar
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Merge branch 'linus' into sched/urgent, to pick up fixes and updates 

Signed-off-by: NIngo Molnar <mingo@kernel.org>
上级 1b5d43cf 642e7fd2
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文本差异 电子邮件补丁
CREDITS
浏览文件 @ ea2a6af5
...@@ -1564,6 +1564,11 @@ W: http://www.carumba.com/ ...@@ -1564,6 +1564,11 @@ W: http://www.carumba.com/
D: bug toaster (A1 sauce makes all the difference) D: bug toaster (A1 sauce makes all the difference)
D: Random linux hacker D: Random linux hacker
N: James Hogan
E: jhogan@kernel.org
D: Metag architecture maintainer
D: TZ1090 SoC maintainer
N: Tim Hockin N: Tim Hockin
E: thockin@hockin.org E: thockin@hockin.org
W: http://www.hockin.org/~thockin W: http://www.hockin.org/~thockin
......
Documentation/00-INDEX
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...@@ -66,8 +66,6 @@ backlight/ ...@@ -66,8 +66,6 @@ backlight/
- directory with info on controlling backlights in flat panel displays - directory with info on controlling backlights in flat panel displays
bcache.txt bcache.txt
- Block-layer cache on fast SSDs to improve slow (raid) I/O performance. - Block-layer cache on fast SSDs to improve slow (raid) I/O performance.
blackfin/
- directory with documentation for the Blackfin arch.
block/ block/
- info on the Block I/O (BIO) layer. - info on the Block I/O (BIO) layer.
blockdev/ blockdev/
...@@ -114,8 +112,6 @@ cputopology.txt ...@@ -114,8 +112,6 @@ cputopology.txt
- documentation on how CPU topology info is exported via sysfs. - documentation on how CPU topology info is exported via sysfs.
crc32.txt crc32.txt
- brief tutorial on CRC computation - brief tutorial on CRC computation
cris/
- directory with info about Linux on CRIS architecture.
crypto/ crypto/
- directory with info on the Crypto API. - directory with info on the Crypto API.
dcdbas.txt dcdbas.txt
...@@ -172,8 +168,6 @@ fmc/ ...@@ -172,8 +168,6 @@ fmc/
- information about the FMC bus abstraction - information about the FMC bus abstraction
fpga/ fpga/
- FPGA Manager Core. - FPGA Manager Core.
frv/
- Fujitsu FR-V Linux documentation.
futex-requeue-pi.txt futex-requeue-pi.txt
- info on requeueing of tasks from a non-PI futex to a PI futex - info on requeueing of tasks from a non-PI futex to a PI futex
gcc-plugins.txt gcc-plugins.txt
...@@ -276,8 +270,6 @@ memory-hotplug.txt ...@@ -276,8 +270,6 @@ memory-hotplug.txt
- Hotpluggable memory support, how to use and current status. - Hotpluggable memory support, how to use and current status.
men-chameleon-bus.txt men-chameleon-bus.txt
- info on MEN chameleon bus. - info on MEN chameleon bus.
metag/
- directory with info about Linux on Meta architecture.
mic/ mic/
- Intel Many Integrated Core (MIC) architecture device driver. - Intel Many Integrated Core (MIC) architecture device driver.
mips/ mips/
...@@ -286,8 +278,6 @@ misc-devices/ ...@@ -286,8 +278,6 @@ misc-devices/
- directory with info about devices using the misc dev subsystem - directory with info about devices using the misc dev subsystem
mmc/ mmc/
- directory with info about the MMC subsystem - directory with info about the MMC subsystem
mn10300/
- directory with info about the mn10300 architecture port
mtd/ mtd/
- directory with info about memory technology devices (flash) - directory with info about memory technology devices (flash)
namespaces/ namespaces/
......
Documentation/admin-guide/README.rst
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...@@ -26,8 +26,8 @@ On what hardware does it run? ...@@ -26,8 +26,8 @@ On what hardware does it run?
Although originally developed first for 32-bit x86-based PCs (386 or higher), Although originally developed first for 32-bit x86-based PCs (386 or higher),
today Linux also runs on (at least) the Compaq Alpha AXP, Sun SPARC and today Linux also runs on (at least) the Compaq Alpha AXP, Sun SPARC and
UltraSPARC, Motorola 68000, PowerPC, PowerPC64, ARM, Hitachi SuperH, Cell, UltraSPARC, Motorola 68000, PowerPC, PowerPC64, ARM, Hitachi SuperH, Cell,
IBM S/390, MIPS, HP PA-RISC, Intel IA-64, DEC VAX, AMD x86-64, AXIS CRIS, IBM S/390, MIPS, HP PA-RISC, Intel IA-64, DEC VAX, AMD x86-64 Xtensa, and
Xtensa, Tilera TILE, ARC and Renesas M32R architectures. ARC architectures.
Linux is easily portable to most general-purpose 32- or 64-bit architectures Linux is easily portable to most general-purpose 32- or 64-bit architectures
as long as they have a paged memory management unit (PMMU) and a port of the as long as they have a paged memory management unit (PMMU) and a port of the
......
Documentation/admin-guide/kernel-parameters.rst
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...@@ -89,7 +89,6 @@ parameter is applicable:: ...@@ -89,7 +89,6 @@ parameter is applicable::
APM Advanced Power Management support is enabled. APM Advanced Power Management support is enabled.
ARM ARM architecture is enabled. ARM ARM architecture is enabled.
AX25 Appropriate AX.25 support is enabled. AX25 Appropriate AX.25 support is enabled.
BLACKFIN Blackfin architecture is enabled.
CLK Common clock infrastructure is enabled. CLK Common clock infrastructure is enabled.
CMA Contiguous Memory Area support is enabled. CMA Contiguous Memory Area support is enabled.
DRM Direct Rendering Management support is enabled. DRM Direct Rendering Management support is enabled.
......
Documentation/admin-guide/kernel-parameters.txt
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...@@ -1025,7 +1025,7 @@ ...@@ -1025,7 +1025,7 @@
address. The serial port must already be setup address. The serial port must already be setup
and configured. Options are not yet supported. and configured. Options are not yet supported.
earlyprintk= [X86,SH,BLACKFIN,ARM,M68k,S390] earlyprintk= [X86,SH,ARM,M68k,S390]
earlyprintk=vga earlyprintk=vga
earlyprintk=efi earlyprintk=efi
earlyprintk=sclp earlyprintk=sclp
...@@ -1347,10 +1347,6 @@ ...@@ -1347,10 +1347,6 @@
If specified, z/VM IUCV HVC accepts connections If specified, z/VM IUCV HVC accepts connections
from listed z/VM user IDs only. from listed z/VM user IDs only.
hwthread_map= [METAG] Comma-separated list of Linux cpu id to
hardware thread id mappings.
Format: <cpu>:<hwthread>
keep_bootcon [KNL] keep_bootcon [KNL]
Do not unregister boot console at start. This is only Do not unregister boot console at start. This is only
useful for debugging when something happens in the window useful for debugging when something happens in the window
...@@ -1766,6 +1762,17 @@ ...@@ -1766,6 +1762,17 @@
nohz nohz
Disable the tick when a single task runs. Disable the tick when a single task runs.
A residual 1Hz tick is offloaded to workqueues, which you
need to affine to housekeeping through the global
workqueue's affinity configured via the
/sys/devices/virtual/workqueue/cpumask sysfs file, or
by using the 'domain' flag described below.
NOTE: by default the global workqueue runs on all CPUs,
so to protect individual CPUs the 'cpumask' file has to
be configured manually after bootup.
domain domain
Isolate from the general SMP balancing and scheduling Isolate from the general SMP balancing and scheduling
algorithms. Note that performing domain isolation this way algorithms. Note that performing domain isolation this way
...@@ -2237,6 +2244,15 @@ ...@@ -2237,6 +2244,15 @@
The memory region may be marked as e820 type 12 (0xc) The memory region may be marked as e820 type 12 (0xc)
and is NVDIMM or ADR memory. and is NVDIMM or ADR memory.
memmap=<size>%<offset>-<oldtype>+<newtype>
[KNL,ACPI] Convert memory within the specified region
from <oldtype> to <newtype>. If "-<oldtype>" is left
out, the whole region will be marked as <newtype>,
even if previously unavailable. If "+<newtype>" is left
out, matching memory will be removed. Types are
specified as e820 types, e.g., 1 = RAM, 2 = reserved,
3 = ACPI, 12 = PRAM.
memory_corruption_check=0/1 [X86] memory_corruption_check=0/1 [X86]
Some BIOSes seem to corrupt the first 64k of Some BIOSes seem to corrupt the first 64k of
memory when doing things like suspend/resume. memory when doing things like suspend/resume.
......
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00-INDEX
- This file
bfin-gpio-notes.txt
- Notes in developing/using bfin-gpio driver.
bfin-spi-notes.txt
- Notes for using bfin spi bus driver.
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/*
* File: Documentation/blackfin/bfin-gpio-notes.txt
* Based on:
* Author:
*
* Created: $Id: bfin-gpio-note.txt 2008-11-24 16:42 grafyang $
* Description: This file contains the notes in developing/using bfin-gpio.
*
*
* Rev:
*
* Modified:
* Copyright 2004-2008 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
*/
1. Blackfin GPIO introduction
There are many GPIO pins on Blackfin. Most of these pins are muxed to
multi-functions. They can be configured as peripheral, or just as GPIO,
configured to input with interrupt enabled, or output.
For detailed information, please see "arch/blackfin/kernel/bfin_gpio.c",
or the relevant HRM.
2. Avoiding resource conflict
Followed function groups are used to avoiding resource conflict,
- Use the pin as peripheral,
int peripheral_request(unsigned short per, const char *label);
int peripheral_request_list(const unsigned short per[], const char *label);
void peripheral_free(unsigned short per);
void peripheral_free_list(const unsigned short per[]);
- Use the pin as GPIO,
int bfin_gpio_request(unsigned gpio, const char *label);
void bfin_gpio_free(unsigned gpio);
- Use the pin as GPIO interrupt,
int bfin_gpio_irq_request(unsigned gpio, const char *label);
void bfin_gpio_irq_free(unsigned gpio);
The request functions will record the function state for a certain pin,
the free functions will clear its function state.
Once a pin is requested, it can't be requested again before it is freed by
previous caller, otherwise kernel will dump stacks, and the request
function fail.
These functions are wrapped by other functions, most of the users need not
care.
3. But there are some exceptions
- Kernel permit the identical GPIO be requested both as GPIO and GPIO
interrupt.
Some drivers, like gpio-keys, need this behavior. Kernel only print out
warning messages like,
bfin-gpio: GPIO 24 is already reserved by gpio-keys: BTN0, and you are
configuring it as IRQ!
Note: Consider the case that, if there are two drivers need the
identical GPIO, one of them use it as GPIO, the other use it as
GPIO interrupt. This will really cause resource conflict. So if
there is any abnormal driver behavior, please check the bfin-gpio
warning messages.
- Kernel permit the identical GPIO be requested from the same driver twice.
Documentation/blackfin/bfin-spi-notes.txt 已删除 100644 → 0
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SPI Chip Select behavior:
With the Blackfin on-chip SPI peripheral, there is some logic tied to the CPHA
bit whether the Slave Select Line is controlled by hardware (CPHA=0) or
controlled by software (CPHA=1). However, the Linux SPI bus driver assumes that
the Slave Select is always under software control and being asserted during
the entire SPI transfer. - And not just bits_per_word duration.
In most cases you can utilize SPI MODE_3 instead of MODE_0 to work-around this
behavior. If your SPI slave device in question requires SPI MODE_0 or MODE_2
timing, you can utilize the GPIO controlled SPI Slave Select option instead.
In this case, you should use GPIO based CS for all of your slaves and not just
the ones using mode 0 or 2 in order to guarantee correct CS toggling behavior.
You can even use the same pin whose peripheral role is a SSEL,
but use it as a GPIO instead.
Documentation/cris/README 已删除 100644 → 0
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Linux on the CRIS architecture
==============================
This is a port of Linux to Axis Communications ETRAX 100LX,
ETRAX FS and ARTPEC-3 embedded network CPUs.
For more information about CRIS and ETRAX please see further below.
In order to compile this you need a version of gcc with support for the
ETRAX chip family. Please see this link for more information on how to
download the compiler and other tools useful when building and booting
software for the ETRAX platform:
http://developer.axis.com/wiki/doku.php?id=axis:install-howto-2_20
What is CRIS ?
--------------
CRIS is an acronym for 'Code Reduced Instruction Set'. It is the CPU
architecture in Axis Communication AB's range of embedded network CPU's,
called ETRAX.
The ETRAX 100LX chip
--------------------
For reference, please see the following link:
http://www.axis.com/products/dev_etrax_100lx/index.htm
The ETRAX 100LX is a 100 MIPS processor with 8kB cache, MMU, and a very broad
range of built-in interfaces, all with modern scatter/gather DMA.
Memory interfaces:
* SRAM
* NOR-flash/ROM
* EDO or page-mode DRAM
* SDRAM
I/O interfaces:
* one 10/100 Mbit/s ethernet controller
* four serial-ports (up to 6 Mbit/s)
* two synchronous serial-ports for multimedia codec's etc.
* USB host controller and USB slave
* ATA
* SCSI
* two parallel-ports
* two generic 8-bit ports
(not all interfaces are available at the same time due to chip pin
multiplexing)
ETRAX 100LX is CRISv10 architecture.
The ETRAX FS and ARTPEC-3 chips
-------------------------------
The ETRAX FS is a 200MHz 32-bit RISC processor with on-chip 16kB
I-cache and 16kB D-cache and with a wide range of device interfaces
including multiple high speed serial ports and an integrated USB 1.1 PHY.
The ARTPEC-3 is a variant of the ETRAX FS with additional IO-units
used by the Axis Communications network cameras.
See below link for more information:
http://www.axis.com/products/dev_etrax_fs/index.htm
ETRAX FS and ARTPEC-3 are both CRISv32 architectures.
Bootlog
-------
Just as an example, this is the debug-output from a boot of Linux 2.4 on
a board with ETRAX 100LX. The displayed BogoMIPS value is 5 times too small :)
At the end you see some user-mode programs booting like telnet and ftp daemons.
Linux version 2.4.1 (bjornw@godzilla.axis.se) (gcc version 2.96 20000427 (experimental)) #207 Wed Feb 21 15:48:15 CET 2001
ROM fs in RAM, size 1376256 bytes
Setting up paging and the MMU.
On node 0 totalpages: 2048
zone(0): 2048 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Linux/CRIS port on ETRAX 100LX (c) 2001 Axis Communications AB
Kernel command line:
Calibrating delay loop... 19.91 BogoMIPS
Memory: 13872k/16384k available (587k kernel code, 2512k reserved, 44k data, 24k init)
kmem_create: Forcing size word alignment - vm_area_struct
kmem_create: Forcing size word alignment - filp
Dentry-cache hash table entries: 2048 (order: 1, 16384 bytes)
Buffer-cache hash table entries: 2048 (order: 0, 8192 bytes)
Page-cache hash table entries: 2048 (order: 0, 8192 bytes)
kmem_create: Forcing size word alignment - kiobuf
kmem_create: Forcing size word alignment - bdev_cache
Inode-cache hash table entries: 1024 (order: 0, 8192 bytes)
kmem_create: Forcing size word alignment - inode_cache
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Starting kswapd v1.8
kmem_create: Forcing size word alignment - file lock cache
kmem_create: Forcing size word alignment - blkdev_requests
block: queued sectors max/low 9109kB/3036kB, 64 slots per queue
ETRAX 100LX 10/100MBit ethernet v2.0 (c) 2000 Axis Communications AB
eth0 initialized
eth0: changed MAC to 00:40:8C:CD:00:00
ETRAX 100LX serial-driver $Revision: 1.7 $, (c) 2000 Axis Communications AB
ttyS0 at 0xb0000060 is a builtin UART with DMA
ttyS1 at 0xb0000068 is a builtin UART with DMA
ttyS2 at 0xb0000070 is a builtin UART with DMA
ttyS3 at 0xb0000078 is a builtin UART with DMA
Axis flash mapping: 200000 at 50000000
Axis flash: Found 1 x16 CFI device at 0x0 in 16 bit mode
Amd/Fujitsu Extended Query Table v1.0 at 0x0040
Axis flash: JEDEC Device ID is 0xC4. Assuming broken CFI table.
Axis flash: Swapping erase regions for broken CFI table.
number of CFI chips: 1
Using default partition table
I2C driver v2.2, (c) 1999-2001 Axis Communications AB
ETRAX 100LX GPIO driver v2.1, (c) 2001 Axis Communications AB
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
kmem_create: Forcing size word alignment - ip_dst_cache
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 2048 bind 2048)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: Mounted root (cramfs filesystem) readonly.
Init starts up...
Mounted none on /proc ok.
Setting up eth0 with ip 10.13.9.116 and mac 00:40:8c:18:04:60
eth0: changed MAC to 00:40:8C:18:04:60
Setting up lo with ip 127.0.0.1
Default gateway is 10.13.9.1
Hostname is bbox1
Telnetd starting, using port 23.
using /bin/sash as shell.
sftpd[15]: sftpd $Revision: 1.7 $ starting up
And here is how some /proc entries look:
17# cd /proc
17# cat cpuinfo
cpu : CRIS
cpu revision : 10
cpu model : ETRAX 100LX
cache size : 8 kB
fpu : no
mmu : yes
ethernet : 10/100 Mbps
token ring : no
scsi : yes
ata : yes
usb : yes
bogomips : 99.84
17# cat meminfo
total: used: free: shared: buffers: cached:
Mem: 7028736 925696 6103040 114688 0 229376
Swap: 0 0 0
MemTotal: 6864 kB
MemFree: 5960 kB
MemShared: 112 kB
Buffers: 0 kB
Cached: 224 kB
Active: 224 kB
Inact_dirty: 0 kB
Inact_clean: 0 kB
Inact_target: 0 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 6864 kB
LowFree: 5960 kB
SwapTotal: 0 kB
SwapFree: 0 kB
17# ls -l /bin
-rwxr-xr-x 1 342 100 10356 Jan 01 00:00 ifconfig
-rwxr-xr-x 1 342 100 17548 Jan 01 00:00 init
-rwxr-xr-x 1 342 100 9488 Jan 01 00:00 route
-rwxr-xr-x 1 342 100 46036 Jan 01 00:00 sftpd
-rwxr-xr-x 1 342 100 48104 Jan 01 00:00 sh
-rwxr-xr-x 1 342 100 16252 Jan 01 00:00 telnetd
Documentation/dev-tools/kmemleak.rst
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...@@ -8,7 +8,7 @@ with the difference that the orphan objects are not freed but only ...@@ -8,7 +8,7 @@ with the difference that the orphan objects are not freed but only
reported via /sys/kernel/debug/kmemleak. A similar method is used by the reported via /sys/kernel/debug/kmemleak. A similar method is used by the
Valgrind tool (``memcheck --leak-check``) to detect the memory leaks in Valgrind tool (``memcheck --leak-check``) to detect the memory leaks in
user-space applications. user-space applications.
Kmemleak is supported on x86, arm, powerpc, sparc, sh, microblaze, ppc, mips, s390, metag and tile. Kmemleak is supported on x86, arm, powerpc, sparc, sh, microblaze, ppc, mips, s390 and tile.
Usage Usage
----- -----
......
Documentation/devicetree/bindings/cris/axis.txt 已删除 100644 → 0
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Axis Communications AB
ARTPEC series SoC Device Tree Bindings
CRISv32 based SoCs are ETRAX FS and ARTPEC-3:
- compatible = "axis,crisv32";
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Boards based on the CRIS SoCs:
Required root node properties:
- compatible = should be one or more of the following:
- "axis,dev88" - for Axis devboard 88 with ETRAX FS
Optional:
Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt 0 → 100644
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Renesas R-Car LVDS Encoder
==========================
These DT bindings describe the LVDS encoder embedded in the Renesas R-Car
Gen2, R-Car Gen3 and RZ/G SoCs.
Required properties:
- compatible : Shall contain one of
- "renesas,r8a7743-lvds" for R8A7743 (RZ/G1M) compatible LVDS encoders
- "renesas,r8a7790-lvds" for R8A7790 (R-Car H2) compatible LVDS encoders
- "renesas,r8a7791-lvds" for R8A7791 (R-Car M2-W) compatible LVDS encoders
- "renesas,r8a7793-lvds" for R8A7793 (R-Car M2-N) compatible LVDS encoders
- "renesas,r8a7795-lvds" for R8A7795 (R-Car H3) compatible LVDS encoders
- "renesas,r8a7796-lvds" for R8A7796 (R-Car M3-W) compatible LVDS encoders
- "renesas,r8a77970-lvds" for R8A77970 (R-Car V3M) compatible LVDS encoders
- "renesas,r8a77995-lvds" for R8A77995 (R-Car D3) compatible LVDS encoders
- reg: Base address and length for the memory-mapped registers
- clocks: A phandle + clock-specifier pair for the functional clock
- resets: A phandle + reset specifier for the module reset
Required nodes:
The LVDS encoder has two video ports. Their connections are modelled using the
OF graph bindings specified in Documentation/devicetree/bindings/graph.txt.
- Video port 0 corresponds to the parallel RGB input
- Video port 1 corresponds to the LVDS output
Each port shall have a single endpoint.
Example:
lvds0: lvds@feb90000 {
compatible = "renesas,r8a7790-lvds";
reg = <0 0xfeb90000 0 0x1c>;
clocks = <&cpg CPG_MOD 726>;
resets = <&cpg 726>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
lvds0_in: endpoint {
remote-endpoint = <&du_out_lvds0>;
};
};
port@1 {
reg = <1>;
lvds0_out: endpoint {
};
};
};
};
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THS8135 Video DAC
-----------------
This is the binding for Texas Instruments THS8135 Video DAC bridge.
Required properties:
- compatible: Must be "ti,ths8135"
Required nodes:
This device has two video ports. Their connections are modelled using the OF
graph bindings specified in Documentation/devicetree/bindings/graph.txt.
- Video port 0 for RGB input
- Video port 1 for VGA output
Example
-------
vga-bridge {
compatible = "ti,ths8135";
#address-cells = <1>;
#size-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
vga_bridge_in: endpoint {
remote-endpoint = <&lcdc_out_vga>;
};
};
port@1 {
reg = <1>;
vga_bridge_out: endpoint {
remote-endpoint = <&vga_con_in>;
};
};
};
};
Documentation/devicetree/bindings/display/bridge/ti,ths813x.txt 0 → 100644
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THS8134 and THS8135 Video DAC
-----------------------------
This is the binding for Texas Instruments THS8134, THS8134A, THS8134B and
THS8135 Video DAC bridges.
Required properties:
- compatible: Must be one of
"ti,ths8134"
"ti,ths8134a," "ti,ths8134"
"ti,ths8134b", "ti,ths8134"
"ti,ths8135"
Required nodes:
This device has two video ports. Their connections are modelled using the OF
graph bindings specified in Documentation/devicetree/bindings/graph.txt.
- Video port 0 for RGB input
- Video port 1 for VGA output
Example
-------
vga-bridge {
compatible = "ti,ths8135";
#address-cells = <1>;
#size-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
vga_bridge_in: endpoint {
remote-endpoint = <&lcdc_out_vga>;
};
};
port@1 {
reg = <1>;
vga_bridge_out: endpoint {
remote-endpoint = <&vga_con_in>;
};
};
};
};
Documentation/devicetree/bindings/display/connector/dvi-connector.txt
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...@@ -10,6 +10,7 @@ Optional properties: ...@@ -10,6 +10,7 @@ Optional properties:
- analog: the connector has DVI analog pins - analog: the connector has DVI analog pins
- digital: the connector has DVI digital pins - digital: the connector has DVI digital pins
- dual-link: the connector has pins for DVI dual-link - dual-link: the connector has pins for DVI dual-link
- hpd-gpios: HPD GPIO number
Required nodes: Required nodes:
- Video port for DVI input - Video port for DVI input
......
Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt
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Etnaviv DRM master device
=========================
The Etnaviv DRM master device is a virtual device needed to list all
Vivante GPU cores that comprise the GPU subsystem.
Required properties:
- compatible: Should be one of
"fsl,imx-gpu-subsystem"
"marvell,dove-gpu-subsystem"
- cores: Should contain a list of phandles pointing to Vivante GPU devices
example:
gpu-subsystem {
compatible = "fsl,imx-gpu-subsystem";
cores = <&gpu_2d>, <&gpu_3d>;
};
Vivante GPU core devices Vivante GPU core devices
======================== ========================
...@@ -32,7 +12,9 @@ Required properties: ...@@ -32,7 +12,9 @@ Required properties:
- clocks: should contain one clock for entry in clock-names - clocks: should contain one clock for entry in clock-names
see Documentation/devicetree/bindings/clock/clock-bindings.txt see Documentation/devicetree/bindings/clock/clock-bindings.txt
- clock-names: - clock-names:
- "bus": AXI/register clock - "bus": AXI/master interface clock
- "reg": AHB/slave interface clock
(only required if GPU can gate slave interface independently)
- "core": GPU core clock - "core": GPU core clock
- "shader": Shader clock (only required if GPU has feature PIPE_3D) - "shader": Shader clock (only required if GPU has feature PIPE_3D)
......
Documentation/devicetree/bindings/display/msm/dsi.txt
浏览文件 @ ea2a6af5
...@@ -7,8 +7,6 @@ Required properties: ...@@ -7,8 +7,6 @@ Required properties:
- reg: Physical base address and length of the registers of controller - reg: Physical base address and length of the registers of controller
- reg-names: The names of register regions. The following regions are required: - reg-names: The names of register regions. The following regions are required:
* "dsi_ctrl" * "dsi_ctrl"
- qcom,dsi-host-index: The ID of DSI controller hardware instance. This should
be 0 or 1, since we have 2 DSI controllers at most for now.
- interrupts: The interrupt signal from the DSI block. - interrupts: The interrupt signal from the DSI block.
- power-domains: Should be <&mmcc MDSS_GDSC>. - power-domains: Should be <&mmcc MDSS_GDSC>.
- clocks: Phandles to device clocks. - clocks: Phandles to device clocks.
...@@ -22,6 +20,8 @@ Required properties: ...@@ -22,6 +20,8 @@ Required properties:
* "core" * "core"
For DSIv2, we need an additional clock: For DSIv2, we need an additional clock:
* "src" * "src"
For DSI6G v2.0 onwards, we need also need the clock:
* "byte_intf"
- assigned-clocks: Parents of "byte" and "pixel" for the given platform. - assigned-clocks: Parents of "byte" and "pixel" for the given platform.
- assigned-clock-parents: The Byte clock and Pixel clock PLL outputs provided - assigned-clock-parents: The Byte clock and Pixel clock PLL outputs provided
by a DSI PHY block. See [1] for details on clock bindings. by a DSI PHY block. See [1] for details on clock bindings.
...@@ -88,21 +88,35 @@ Required properties: ...@@ -88,21 +88,35 @@ Required properties:
* "qcom,dsi-phy-28nm-lp" * "qcom,dsi-phy-28nm-lp"
* "qcom,dsi-phy-20nm" * "qcom,dsi-phy-20nm"
* "qcom,dsi-phy-28nm-8960" * "qcom,dsi-phy-28nm-8960"
- reg: Physical base address and length of the registers of PLL, PHY and PHY * "qcom,dsi-phy-14nm"
regulator * "qcom,dsi-phy-10nm"
- reg: Physical base address and length of the registers of PLL, PHY. Some
revisions require the PHY regulator base address, whereas others require the
PHY lane base address. See below for each PHY revision.
- reg-names: The names of register regions. The following regions are required: - reg-names: The names of register regions. The following regions are required:
For DSI 28nm HPM/LP/8960 PHYs and 20nm PHY:
* "dsi_pll" * "dsi_pll"
* "dsi_phy" * "dsi_phy"
* "dsi_phy_regulator" * "dsi_phy_regulator"
For DSI 14nm and 10nm PHYs:
* "dsi_pll"
* "dsi_phy"
* "dsi_phy_lane"
- clock-cells: Must be 1. The DSI PHY block acts as a clock provider, creating - clock-cells: Must be 1. The DSI PHY block acts as a clock provider, creating
2 clocks: A byte clock (index 0), and a pixel clock (index 1). 2 clocks: A byte clock (index 0), and a pixel clock (index 1).
- qcom,dsi-phy-index: The ID of DSI PHY hardware instance. This should
be 0 or 1, since we have 2 DSI PHYs at most for now.
- power-domains: Should be <&mmcc MDSS_GDSC>. - power-domains: Should be <&mmcc MDSS_GDSC>.
- clocks: Phandles to device clocks. See [1] for details on clock bindings. - clocks: Phandles to device clocks. See [1] for details on clock bindings.
- clock-names: the following clocks are required: - clock-names: the following clocks are required:
* "iface" * "iface"
For 28nm HPM/LP, 28nm 8960 PHYs:
- vddio-supply: phandle to vdd-io regulator device node
For 20nm PHY:
- vddio-supply: phandle to vdd-io regulator device node - vddio-supply: phandle to vdd-io regulator device node
- vcca-supply: phandle to vcca regulator device node
For 14nm PHY:
- vcca-supply: phandle to vcca regulator device node
For 10nm PHY:
- vdds-supply: phandle to vdds regulator device node
Optional properties: Optional properties:
- qcom,dsi-phy-regulator-ldo-mode: Boolean value indicating if the LDO mode PHY - qcom,dsi-phy-regulator-ldo-mode: Boolean value indicating if the LDO mode PHY
......
Documentation/devicetree/bindings/display/panel/arm,versatile-tft-panel.txt 0 → 100644
浏览文件 @ ea2a6af5
ARM Versatile TFT Panels
These panels are connected to the daughterboards found on the
ARM Versatile reference designs.
This device node must appear as a child to a "syscon"-compatible
node.
Required properties:
- compatible: should be "arm,versatile-tft-panel"
Required subnodes:
- port: see display/panel/panel-common.txt, graph.txt
Example:
sysreg@0 {
compatible = "arm,versatile-sysreg", "syscon", "simple-mfd";
reg = <0x00000 0x1000>;
panel: display@0 {
compatible = "arm,versatile-tft-panel";
port {
panel_in: endpoint {
remote-endpoint = <&foo>;
};
};
};
};
Documentation/devicetree/bindings/display/panel/auo,g104sn02.txt 0 → 100644
浏览文件 @ ea2a6af5
AU Optronics Corporation 10.4" (800x600) color TFT LCD panel
Required properties:
- compatible: should be "auo,g104sn02"
- power-supply: as specified in the base binding
Optional properties:
- backlight: as specified in the base binding
- enable-gpios: as specified in the base binding
This binding is compatible with the simple-panel binding, which is specified
in simple-panel.txt in this directory.
Documentation/devicetree/bindings/display/panel/display-timing.txt
浏览文件 @ ea2a6af5
...@@ -80,6 +80,11 @@ The parameters are defined as: ...@@ -80,6 +80,11 @@ The parameters are defined as:
| | v | | | | | v | | |
+----------+-------------------------------------+----------+-------+ +----------+-------------------------------------+----------+-------+
Note: In addition to being used as subnode(s) of display-timings, the timing
subnode may also be used on its own. This is appropriate if only one mode
need be conveyed. In this case, the node should be named 'panel-timing'.
Example: Example:
display-timings { display-timings {
......
Documentation/devicetree/bindings/display/panel/koe,tx31d200vm0baa.txt 0 → 100644
浏览文件 @ ea2a6af5
Kaohsiung Opto-Electronics. TX31D200VM0BAA 12.3" HSXGA LVDS panel
This binding is compatible with the simple-panel binding, which is specified
in simple-panel.txt in this directory.
Required properties:
- compatible: should be "koe,tx31d200vm0baa"
Optional properties:
- backlight: phandle of the backlight device attached to the panel
Optional nodes:
- Video port for LVDS panel input.
Example:
panel {
compatible = "koe,tx31d200vm0baa";
backlight = <&backlight_lvds>;
port {
panel_in: endpoint {
remote-endpoint = <&lvds0_out>;
};
};
};
Documentation/devicetree/bindings/display/panel/orisetech,otm8009a.txt
浏览文件 @ ea2a6af5
...@@ -9,6 +9,7 @@ Required properties: ...@@ -9,6 +9,7 @@ Required properties:
Optional properties: Optional properties:
- reset-gpios: a GPIO spec for the reset pin (active low). - reset-gpios: a GPIO spec for the reset pin (active low).
- power-supply: phandle of the regulator that provides the supply voltage.
Example: Example:
&dsi { &dsi {
...@@ -17,5 +18,6 @@ Example: ...@@ -17,5 +18,6 @@ Example:
compatible = "orisetech,otm8009a"; compatible = "orisetech,otm8009a";
reg = <0>; reg = <0>;
reset-gpios = <&gpioh 7 GPIO_ACTIVE_LOW>; reset-gpios = <&gpioh 7 GPIO_ACTIVE_LOW>;
power-supply = <&v1v8>;
}; };
}; };
Documentation/devicetree/bindings/display/panel/raydium,rm68200.txt 0 → 100644
浏览文件 @ ea2a6af5
Raydium Semiconductor Corporation RM68200 5.5" 720p MIPI-DSI TFT LCD panel
The Raydium Semiconductor Corporation RM68200 is a 5.5" 720x1280 TFT LCD
panel connected using a MIPI-DSI video interface.
Required properties:
- compatible: "raydium,rm68200"
- reg: the virtual channel number of a DSI peripheral
Optional properties:
- reset-gpios: a GPIO spec for the reset pin (active low).
- power-supply: phandle of the regulator that provides the supply voltage.
- backlight: phandle of the backlight device attached to the panel.
Example:
&dsi {
...
panel@0 {
compatible = "raydium,rm68200";
reg = <0>;
reset-gpios = <&gpiof 15 GPIO_ACTIVE_LOW>;
power-supply = <&v1v8>;
backlight = <&pwm_backlight>;
};
};
Documentation/devicetree/bindings/display/panel/simple-panel.txt
浏览文件 @ ea2a6af5
Simple display panel Simple display panel
====================
panel node
----------
Required properties: Required properties:
- power-supply: See panel-common.txt - power-supply: See panel-common.txt
......
Documentation/devicetree/bindings/display/renesas,du.txt
浏览文件 @ ea2a6af5
...@@ -13,13 +13,10 @@ Required Properties: ...@@ -13,13 +13,10 @@ Required Properties:
- "renesas,du-r8a7794" for R8A7794 (R-Car E2) compatible DU - "renesas,du-r8a7794" for R8A7794 (R-Car E2) compatible DU
- "renesas,du-r8a7795" for R8A7795 (R-Car H3) compatible DU - "renesas,du-r8a7795" for R8A7795 (R-Car H3) compatible DU
- "renesas,du-r8a7796" for R8A7796 (R-Car M3-W) compatible DU - "renesas,du-r8a7796" for R8A7796 (R-Car M3-W) compatible DU
- "renesas,du-r8a77970" for R8A77970 (R-Car V3M) compatible DU
- "renesas,du-r8a77995" for R8A77995 (R-Car D3) compatible DU
- reg: A list of base address and length of each memory resource, one for - reg: the memory-mapped I/O registers base address and length
each entry in the reg-names property.
- reg-names: Name of the memory resources. The DU requires one memory
resource for the DU core (named "du") and one memory resource for each
LVDS encoder (named "lvds.x" with "x" being the LVDS controller numerical
index).
- interrupt-parent: phandle of the parent interrupt controller. - interrupt-parent: phandle of the parent interrupt controller.
- interrupts: Interrupt specifiers for the DU interrupts. - interrupts: Interrupt specifiers for the DU interrupts.
...@@ -29,14 +26,13 @@ Required Properties: ...@@ -29,14 +26,13 @@ Required Properties:
- clock-names: Name of the clocks. This property is model-dependent. - clock-names: Name of the clocks. This property is model-dependent.
- R8A7779 uses a single functional clock. The clock doesn't need to be - R8A7779 uses a single functional clock. The clock doesn't need to be
named. named.
- All other DU instances use one functional clock per channel and one - All other DU instances use one functional clock per channel The
clock per LVDS encoder (if available). The functional clocks must be functional clocks must be named "du.x" with "x" being the channel
named "du.x" with "x" being the channel numerical index. The LVDS clocks numerical index.
must be named "lvds.x" with "x" being the LVDS encoder numerical index. - In addition to the functional clocks, all DU versions also support
- In addition to the functional and encoder clocks, all DU versions also externally supplied pixel clocks. Those clocks are optional. When
support externally supplied pixel clocks. Those clocks are optional. supplied they must be named "dclkin.x" with "x" being the input clock
When supplied they must be named "dclkin.x" with "x" being the input numerical index.
clock numerical index.
- vsps: A list of phandle and channel index tuples to the VSPs that handle - vsps: A list of phandle and channel index tuples to the VSPs that handle
the memory interfaces for the DU channels. The phandle identifies the VSP the memory interfaces for the DU channels. The phandle identifies the VSP
...@@ -63,15 +59,15 @@ corresponding to each DU output. ...@@ -63,15 +59,15 @@ corresponding to each DU output.
R8A7794 (R-Car E2) DPAD 0 DPAD 1 - - R8A7794 (R-Car E2) DPAD 0 DPAD 1 - -
R8A7795 (R-Car H3) DPAD 0 HDMI 0 HDMI 1 LVDS 0 R8A7795 (R-Car H3) DPAD 0 HDMI 0 HDMI 1 LVDS 0
R8A7796 (R-Car M3-W) DPAD 0 HDMI 0 LVDS 0 - R8A7796 (R-Car M3-W) DPAD 0 HDMI 0 LVDS 0 -
R8A77970 (R-Car V3M) DPAD 0 LVDS 0 - -
R8A77995 (R-Car D3) DPAD 0 LVDS 0 LVDS 1 -
Example: R8A7795 (R-Car H3) ES2.0 DU Example: R8A7795 (R-Car H3) ES2.0 DU
du: display@feb00000 { du: display@feb00000 {
compatible = "renesas,du-r8a7795"; compatible = "renesas,du-r8a7795";
reg = <0 0xfeb00000 0 0x80000>, reg = <0 0xfeb00000 0 0x80000>;
<0 0xfeb90000 0 0x14>;
reg-names = "du", "lvds.0";
interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>, interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 269 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 269 IRQ_TYPE_LEVEL_HIGH>,
...@@ -79,9 +75,8 @@ Example: R8A7795 (R-Car H3) ES2.0 DU ...@@ -79,9 +75,8 @@ Example: R8A7795 (R-Car H3) ES2.0 DU
clocks = <&cpg CPG_MOD 724>, clocks = <&cpg CPG_MOD 724>,
<&cpg CPG_MOD 723>, <&cpg CPG_MOD 723>,
<&cpg CPG_MOD 722>, <&cpg CPG_MOD 722>,
<&cpg CPG_MOD 721>, <&cpg CPG_MOD 721>;
<&cpg CPG_MOD 727>; clock-names = "du.0", "du.1", "du.2", "du.3";
clock-names = "du.0", "du.1", "du.2", "du.3", "lvds.0";
vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>; vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;
ports { ports {
......
Documentation/devicetree/bindings/display/rockchip/cdn-dp-rockchip.txt 0 → 100644
浏览文件 @ ea2a6af5
Rockchip RK3399 specific extensions to the cdn Display Port
================================
Required properties:
- compatible: must be "rockchip,rk3399-cdn-dp"
- reg: physical base address of the controller and length
- clocks: from common clock binding: handle to dp clock.
- clock-names: from common clock binding:
Required elements: "core-clk" "pclk" "spdif" "grf"
- resets : a list of phandle + reset specifier pairs
- reset-names : string of reset names
Required elements: "apb", "core", "dptx", "spdif"
- power-domains : power-domain property defined with a phandle
to respective power domain.
- assigned-clocks: main clock, should be <&cru SCLK_DP_CORE>
- assigned-clock-rates : the DP core clk frequency, shall be: 100000000
- rockchip,grf: this soc should set GRF regs, so need get grf here.
- ports: contain a port nodes with endpoint definitions as defined in
Documentation/devicetree/bindings/media/video-interfaces.txt.
contained 2 endpoints, connecting to the output of vop.
- phys: from general PHY binding: the phandle for the PHY device.
- extcon: extcon specifier for the Power Delivery
- #sound-dai-cells = it must be 1 if your system is using 2 DAIs: I2S, SPDIF
-------------------------------------------------------------------------------
Example:
cdn_dp: dp@fec00000 {
compatible = "rockchip,rk3399-cdn-dp";
reg = <0x0 0xfec00000 0x0 0x100000>;
interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>,
<&cru SCLK_SPDIF_REC_DPTX>, <&cru PCLK_VIO_GRF>;
clock-names = "core-clk", "pclk", "spdif", "grf";
assigned-clocks = <&cru SCLK_DP_CORE>;
assigned-clock-rates = <100000000>;
power-domains = <&power RK3399_PD_HDCP>;
phys = <&tcphy0_dp>, <&tcphy1_dp>;
resets = <&cru SRST_DPTX_SPDIF_REC>;
reset-names = "spdif";
extcon = <&fusb0>, <&fusb1>;
rockchip,grf = <&grf>;
#address-cells = <1>;
#size-cells = <0>;
#sound-dai-cells = <1>;
ports {
#address-cells = <1>;
#size-cells = <0>;
dp_in: port {
#address-cells = <1>;
#size-cells = <0>;
dp_in_vopb: endpoint@0 {
reg = <0>;
remote-endpoint = <&vopb_out_dp>;
};
dp_in_vopl: endpoint@1 {
reg = <1>;
remote-endpoint = <&vopl_out_dp>;
};
};
};
};
Documentation/devicetree/bindings/display/st,stm32-ltdc.txt
浏览文件 @ ea2a6af5
...@@ -98,7 +98,7 @@ Example 2: DSI panel ...@@ -98,7 +98,7 @@ Example 2: DSI panel
compatible = "st,stm32-dsi"; compatible = "st,stm32-dsi";
reg = <0x40016c00 0x800>; reg = <0x40016c00 0x800>;
clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>; clocks = <&rcc 1 CLK_F469_DSI>, <&clk_hse>;
clock-names = "ref", "pclk"; clock-names = "pclk", "ref";
resets = <&rcc STM32F4_APB2_RESET(DSI)>; resets = <&rcc STM32F4_APB2_RESET(DSI)>;
reset-names = "apb"; reset-names = "apb";
......
Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
浏览文件 @ ea2a6af5
...@@ -64,6 +64,56 @@ Required properties: ...@@ -64,6 +64,56 @@ Required properties:
first port should be the input endpoint. The second should be the first port should be the input endpoint. The second should be the
output, usually to an HDMI connector. output, usually to an HDMI connector.
DWC HDMI TX Encoder
-------------------
The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
with Allwinner's own PHY IP. It supports audio and video outputs and CEC.
These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with the
following device-specific properties.
Required properties:
- compatible: value must be one of:
* "allwinner,sun8i-a83t-dw-hdmi"
- reg: base address and size of memory-mapped region
- reg-io-width: See dw_hdmi.txt. Shall be 1.
- interrupts: HDMI interrupt number
- clocks: phandles to the clocks feeding the HDMI encoder
* iahb: the HDMI bus clock
* isfr: the HDMI register clock
* tmds: TMDS clock
- clock-names: the clock names mentioned above
- resets: phandle to the reset controller
- reset-names: must be "ctrl"
- phys: phandle to the DWC HDMI PHY
- phy-names: must be "phy"
- ports: A ports node with endpoint definitions as defined in
Documentation/devicetree/bindings/media/video-interfaces.txt. The
first port should be the input endpoint. The second should be the
output, usually to an HDMI connector.
DWC HDMI PHY
------------
Required properties:
- compatible: value must be one of:
* allwinner,sun8i-a83t-hdmi-phy
* allwinner,sun8i-h3-hdmi-phy
- reg: base address and size of memory-mapped region
- clocks: phandles to the clocks feeding the HDMI PHY
* bus: the HDMI PHY interface clock
* mod: the HDMI PHY module clock
- clock-names: the clock names mentioned above
- resets: phandle to the reset controller driving the PHY
- reset-names: must be "phy"
H3 HDMI PHY requires additional clock:
- pll-0: parent of phy clock
TV Encoder TV Encoder
---------- ----------
...@@ -94,24 +144,29 @@ Required properties: ...@@ -94,24 +144,29 @@ Required properties:
* allwinner,sun7i-a20-tcon * allwinner,sun7i-a20-tcon
* allwinner,sun8i-a33-tcon * allwinner,sun8i-a33-tcon
* allwinner,sun8i-a83t-tcon-lcd * allwinner,sun8i-a83t-tcon-lcd
* allwinner,sun8i-a83t-tcon-tv
* allwinner,sun8i-v3s-tcon * allwinner,sun8i-v3s-tcon
* allwinner,sun9i-a80-tcon-lcd
* allwinner,sun9i-a80-tcon-tv
- reg: base address and size of memory-mapped region - reg: base address and size of memory-mapped region
- interrupts: interrupt associated to this IP - interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the TCON. Three are needed: - clocks: phandles to the clocks feeding the TCON.
- 'ahb': the interface clocks - 'ahb': the interface clocks
- 'tcon-ch0': The clock driving the TCON channel 0 - 'tcon-ch0': The clock driving the TCON channel 0, if supported
- resets: phandles to the reset controllers driving the encoder - resets: phandles to the reset controllers driving the encoder
- "lcd": the reset line for the TCON channel 0 - "lcd": the reset line for the TCON
- "edp": the reset line for the eDP block (A80 only)
- clock-names: the clock names mentioned above - clock-names: the clock names mentioned above
- reset-names: the reset names mentioned above - reset-names: the reset names mentioned above
- clock-output-names: Name of the pixel clock created - clock-output-names: Name of the pixel clock created, if TCON supports
channel 0.
- ports: A ports node with endpoint definitions as defined in - ports: A ports node with endpoint definitions as defined in
Documentation/devicetree/bindings/media/video-interfaces.txt. The Documentation/devicetree/bindings/media/video-interfaces.txt. The
first port should be the input endpoint, the second one the output first port should be the input endpoint, the second one the output
The output may have multiple endpoints. The TCON has two channels, The output may have multiple endpoints. TCON can have 1 or 2 channels,
usually with the first channel being used for the panels interfaces usually with the first channel being used for the panels interfaces
(RGB, LVDS, etc.), and the second being used for the outputs that (RGB, LVDS, etc.), and the second being used for the outputs that
require another controller (TV Encoder, HDMI, etc.). The endpoints require another controller (TV Encoder, HDMI, etc.). The endpoints
...@@ -119,11 +174,13 @@ Required properties: ...@@ -119,11 +174,13 @@ Required properties:
channel the endpoint is associated to. If that property is not channel the endpoint is associated to. If that property is not
present, the endpoint number will be used as the channel number. present, the endpoint number will be used as the channel number.
On SoCs other than the A33 and V3s, there is one more clock required: For TCONs with channel 0, there is one more clock required:
- 'tcon-ch0': The clock driving the TCON channel 0
For TCONs with channel 1, there is one more clock required:
- 'tcon-ch1': The clock driving the TCON channel 1 - 'tcon-ch1': The clock driving the TCON channel 1
On SoCs that support LVDS (all SoCs but the A13, H3, H5 and V3s), you When TCON support LVDS (all TCONs except TV TCON on A83T and those found
need one more reset line: in A13, H3, H5 and V3s SoCs), you need one more reset line:
- 'lvds': The reset line driving the LVDS logic - 'lvds': The reset line driving the LVDS logic
And on the A23, A31, A31s and A33, you need one more clock line: And on the A23, A31, A31s and A33, you need one more clock line:
...@@ -134,7 +191,7 @@ DRC ...@@ -134,7 +191,7 @@ DRC
--- ---
The DRC (Dynamic Range Controller), found in the latest Allwinner SoCs The DRC (Dynamic Range Controller), found in the latest Allwinner SoCs
(A31, A23, A33), allows to dynamically adjust pixel (A31, A23, A33, A80), allows to dynamically adjust pixel
brightness/contrast based on histogram measurements for LCD content brightness/contrast based on histogram measurements for LCD content
adaptive backlight control. adaptive backlight control.
...@@ -144,6 +201,7 @@ Required properties: ...@@ -144,6 +201,7 @@ Required properties:
* allwinner,sun6i-a31-drc * allwinner,sun6i-a31-drc
* allwinner,sun6i-a31s-drc * allwinner,sun6i-a31s-drc
* allwinner,sun8i-a33-drc * allwinner,sun8i-a33-drc
* allwinner,sun9i-a80-drc
- reg: base address and size of the memory-mapped region. - reg: base address and size of the memory-mapped region.
- interrupts: interrupt associated to this IP - interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the DRC - clocks: phandles to the clocks feeding the DRC
...@@ -170,6 +228,7 @@ Required properties: ...@@ -170,6 +228,7 @@ Required properties:
* allwinner,sun6i-a31-display-backend * allwinner,sun6i-a31-display-backend
* allwinner,sun7i-a20-display-backend * allwinner,sun7i-a20-display-backend
* allwinner,sun8i-a33-display-backend * allwinner,sun8i-a33-display-backend
* allwinner,sun9i-a80-display-backend
- reg: base address and size of the memory-mapped region. - reg: base address and size of the memory-mapped region.
- interrupts: interrupt associated to this IP - interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the frontend and backend - clocks: phandles to the clocks feeding the frontend and backend
...@@ -191,6 +250,28 @@ On the A33, some additional properties are required: ...@@ -191,6 +250,28 @@ On the A33, some additional properties are required:
- resets and reset-names need to have a phandle to the SAT bus - resets and reset-names need to have a phandle to the SAT bus
resets, whose name will be "sat" resets, whose name will be "sat"
DEU
---
The DEU (Detail Enhancement Unit), found in the Allwinner A80 SoC,
can sharpen the display content in both luma and chroma channels.
Required properties:
- compatible: value must be one of:
* allwinner,sun9i-a80-deu
- reg: base address and size of the memory-mapped region.
- interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the DEU
* ahb: the DEU interface clock
* mod: the DEU module clock
* ram: the DEU DRAM clock
- clock-names: the clock names mentioned above
- resets: phandles to the reset line driving the DEU
- ports: A ports node with endpoint definitions as defined in
Documentation/devicetree/bindings/media/video-interfaces.txt. The
first port should be the input endpoints, the second one the outputs
Display Engine Frontend Display Engine Frontend
----------------------- -----------------------
...@@ -204,6 +285,7 @@ Required properties: ...@@ -204,6 +285,7 @@ Required properties:
* allwinner,sun6i-a31-display-frontend * allwinner,sun6i-a31-display-frontend
* allwinner,sun7i-a20-display-frontend * allwinner,sun7i-a20-display-frontend
* allwinner,sun8i-a33-display-frontend * allwinner,sun8i-a33-display-frontend
* allwinner,sun9i-a80-display-frontend
- reg: base address and size of the memory-mapped region. - reg: base address and size of the memory-mapped region.
- interrupts: interrupt associated to this IP - interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the frontend and backend - clocks: phandles to the clocks feeding the frontend and backend
...@@ -226,6 +308,8 @@ supported. ...@@ -226,6 +308,8 @@ supported.
Required properties: Required properties:
- compatible: value must be one of: - compatible: value must be one of:
* allwinner,sun8i-a83t-de2-mixer-0 * allwinner,sun8i-a83t-de2-mixer-0
* allwinner,sun8i-a83t-de2-mixer-1
* allwinner,sun8i-h3-de2-mixer-0
* allwinner,sun8i-v3s-de2-mixer * allwinner,sun8i-v3s-de2-mixer
- reg: base address and size of the memory-mapped region. - reg: base address and size of the memory-mapped region.
- clocks: phandles to the clocks feeding the mixer - clocks: phandles to the clocks feeding the mixer
...@@ -256,7 +340,9 @@ Required properties: ...@@ -256,7 +340,9 @@ Required properties:
* allwinner,sun7i-a20-display-engine * allwinner,sun7i-a20-display-engine
* allwinner,sun8i-a33-display-engine * allwinner,sun8i-a33-display-engine
* allwinner,sun8i-a83t-display-engine * allwinner,sun8i-a83t-display-engine
* allwinner,sun8i-h3-display-engine
* allwinner,sun8i-v3s-display-engine * allwinner,sun8i-v3s-display-engine
* allwinner,sun9i-a80-display-engine
- allwinner,pipelines: list of phandle to the display engine - allwinner,pipelines: list of phandle to the display engine
frontends (DE 1.0) or mixers (DE 2.0) available. frontends (DE 1.0) or mixers (DE 2.0) available.
......
Documentation/devicetree/bindings/gpio/gpio-etraxfs.txt 已删除 100644 → 0
浏览文件 @ 1b5d43cf
Axis ETRAX FS General I/O controller bindings
Required properties:
- compatible: one of:
- "axis,etraxfs-gio"
- "axis,artpec3-gio"
- reg: Physical base address and length of the controller's registers.
- #gpio-cells: Should be 3
- The first cell is the gpio offset number.
- The second cell is reserved and is currently unused.
- The third cell is the port number (hex).
- gpio-controller: Marks the device node as a GPIO controller.
Example:
gio: gpio@b001a000 {
compatible = "axis,etraxfs-gio";
reg = <0xb001a000 0x1000>;
gpio-controller;
#gpio-cells = <3>;
};
Documentation/devicetree/bindings/interrupt-controller/andestech,ativic32.txt 0 → 100644
浏览文件 @ ea2a6af5
* Andestech Internal Vector Interrupt Controller
The Internal Vector Interrupt Controller (IVIC) is a basic interrupt controller
suitable for a simpler SoC platform not requiring a more sophisticated and
bigger External Vector Interrupt Controller.
Main node required properties:
- compatible : should at least contain "andestech,ativic32".
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells: 1 cells and refer to interrupt-controller/interrupts
Examples:
intc: interrupt-controller {
compatible = "andestech,ativic32";
#interrupt-cells = <1>;
interrupt-controller;
};
Documentation/devicetree/bindings/interrupt-controller/axis,crisv32-intc.txt 已删除 100644 → 0
浏览文件 @ 1b5d43cf
* CRISv32 Interrupt Controller
Interrupt controller for the CRISv32 SoCs.
Main node required properties:
- compatible : should be:
"axis,crisv32-intc"
- interrupt-controller : Identifies the node as an interrupt controller
- #interrupt-cells : Specifies the number of cells needed to encode an
interrupt source. The type shall be a <u32> and the value shall be 1.
- reg: physical base address and size of the intc registers map.
Example:
intc: interrupt-controller {
compatible = "axis,crisv32-intc";
reg = <0xb001c000 0x1000>;
interrupt-controller;
#interrupt-cells = <1>;
};
Documentation/devicetree/bindings/jailhouse.txt 0 → 100644
浏览文件 @ ea2a6af5
Jailhouse non-root cell device tree bindings
--------------------------------------------
When running in a non-root Jailhouse cell (partition), the device tree of this
platform shall have a top-level "hypervisor" node with the following
properties:
- compatible = "jailhouse,cell"
Documentation/devicetree/bindings/metag/meta.txt 已删除 100644 → 0
浏览文件 @ 1b5d43cf
* Meta Processor Binding
This binding specifies what properties must be available in the device tree
representation of a Meta Processor Core, which is the root node in the tree.
Required properties:
- compatible: Specifies the compatibility list for the Meta processor.
The type shall be <string> and the value shall include "img,meta".
Optional properties:
- clocks: Clock consumer specifiers as described in
Documentation/devicetree/bindings/clock/clock-bindings.txt
- clock-names: Clock consumer names as described in
Documentation/devicetree/bindings/clock/clock-bindings.txt.
Clocks are identified by name. Valid clocks are:
- "core": The Meta core clock from which the Meta timers are derived.
* Examples
/ {
compatible = "toumaz,tz1090", "img,meta";
clocks = <&meta_core_clk>;
clock-names = "core";
};
Documentation/devicetree/bindings/nds32/andestech-boards 0 → 100644
浏览文件 @ ea2a6af5
Andestech(nds32) AE3XX Platform
-----------------------------------------------------------------------------
The AE3XX prototype demonstrates the AE3XX example platform on the FPGA. It
is composed of one Andestech(nds32) processor and AE3XX.
Required properties (in root node):
- compatible = "andestech,ae3xx";
Example:
/dts-v1/;
/ {
compatible = "andestech,ae3xx";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&intc>;
};
Andestech(nds32) AG101P Platform
-----------------------------------------------------------------------------
AG101P is a generic SoC Platform IP that works with any of Andestech(nds32)
processors to provide a cost-effective and high performance solution for
majority of embedded systems in variety of application domains. Users may
simply attach their IP on one of the system buses together with certain glue
logics to complete a SoC solution for a specific application. With
comprehensive simulation and design environments, users may evaluate the
system performance of their applications and track bugs of their designs
efficiently. The optional hardware development platform further provides real
system environment for early prototyping and software/hardware co-development.
Required properties (in root node):
compatible = "andestech,ag101p";
Example:
/dts-v1/;
/ {
compatible = "andestech,ag101p";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&intc>;
};
Documentation/devicetree/bindings/nds32/atl2c.txt 0 → 100644
浏览文件 @ ea2a6af5
* Andestech L2 cache Controller
The level-2 cache controller plays an important role in reducing memory latency
for high performance systems, such as thoese designs with AndesCore processors.
Level-2 cache controller in general enhances overall system performance
signigicantly and the system power consumption might be reduced as well by
reducing DRAM accesses.
This binding specifies what properties must be available in the device tree
representation of an Andestech L2 cache controller.
Required properties:
- compatible:
Usage: required
Value type: <string>
Definition: "andestech,atl2c"
- reg : Physical base address and size of cache controller's memory mapped
- cache-unified : Specifies the cache is a unified cache.
- cache-level : Should be set to 2 for a level 2 cache.
* Example
cache-controller@e0500000 {
compatible = "andestech,atl2c";
reg = <0xe0500000 0x1000>;
cache-unified;
cache-level = <2>;
};
Documentation/devicetree/bindings/nds32/cpus.txt 0 → 100644
浏览文件 @ ea2a6af5
* Andestech Processor Binding
This binding specifies what properties must be available in the device tree
representation of a Andestech Processor Core, which is the root node in the
tree.
Required properties:
- compatible:
Usage: required
Value type: <string>
Definition: Should be "andestech,<core_name>", "andestech,nds32v3" as fallback.
Must contain "andestech,nds32v3" as the most generic value, in addition to
one of the following identifiers for a particular CPU core:
"andestech,n13"
"andestech,n15"
"andestech,d15"
"andestech,n10"
"andestech,d10"
- device_type
Usage: required
Value type: <string>
Definition: must be "cpu"
- reg: Contains CPU index.
- clock-frequency: Contains the clock frequency for CPU, in Hz.
* Examples
/ {
cpus {
cpu@0 {
device_type = "cpu";
compatible = "andestech,n13", "andestech,nds32v3";
reg = <0x0>;
clock-frequency = <60000000>
};
};
};
Documentation/devicetree/bindings/serial/axis,etraxfs-uart.txt 已删除 100644 → 0
浏览文件 @ 1b5d43cf
ETRAX FS UART
Required properties:
- compatible : "axis,etraxfs-uart"
- reg: offset and length of the register set for the device.
- interrupts: device interrupt
Optional properties:
- {dtr,dsr,rng,dcd}-gpios: specify a GPIO for DTR/DSR/RI/DCD
line respectively.
Example:
serial@b00260000 {
compatible = "axis,etraxfs-uart";
reg = <0xb0026000 0x1000>;
interrupts = <68>;
dtr-gpios = <&sysgpio 0 GPIO_ACTIVE_LOW>;
dsr-gpios = <&sysgpio 1 GPIO_ACTIVE_LOW>;
rng-gpios = <&sysgpio 2 GPIO_ACTIVE_LOW>;
dcd-gpios = <&sysgpio 3 GPIO_ACTIVE_LOW>;
};
Documentation/devicetree/bindings/timer/andestech,atcpit100-timer.txt 0 → 100644
浏览文件 @ ea2a6af5
Andestech ATCPIT100 timer
------------------------------------------------------------------
ATCPIT100 is a generic IP block from Andes Technology, embedded in
Andestech AE3XX platforms and other designs.
This timer is a set of compact multi-function timers, which can be
used as pulse width modulators (PWM) as well as simple timers.
It supports up to 4 PIT channels. Each PIT channel is a
multi-function timer and provide the following usage scenarios:
One 32-bit timer
Two 16-bit timers
Four 8-bit timers
One 16-bit PWM
One 16-bit timer and one 8-bit PWM
Two 8-bit timer and one 8-bit PWM
Required properties:
- compatible : Should be "andestech,atcpit100"
- reg : Address and length of the register set
- interrupts : Reference to the timer interrupt
- clocks : a clock to provide the tick rate for "andestech,atcpit100"
- clock-names : should be "PCLK" for the peripheral clock source.
Examples:
timer0: timer@f0400000 {
compatible = "andestech,atcpit100";
reg = <0xf0400000 0x1000>;
interrupts = <2>;
clocks = <&apb>;
clock-names = "PCLK";
};
Documentation/devicetree/bindings/vendor-prefixes.txt
浏览文件 @ ea2a6af5
...@@ -104,6 +104,7 @@ eeti eGalax_eMPIA Technology Inc ...@@ -104,6 +104,7 @@ eeti eGalax_eMPIA Technology Inc
elan Elan Microelectronic Corp. elan Elan Microelectronic Corp.
embest Shenzhen Embest Technology Co., Ltd. embest Shenzhen Embest Technology Co., Ltd.
emmicro EM Microelectronic emmicro EM Microelectronic
emtrion emtrion GmbH
energymicro Silicon Laboratories (formerly Energy Micro AS) energymicro Silicon Laboratories (formerly Energy Micro AS)
engicam Engicam S.r.l. engicam Engicam S.r.l.
epcos EPCOS AG epcos EPCOS AG
......
Documentation/devicetree/bindings/x86/ce4100.txt
浏览文件 @ ea2a6af5
...@@ -7,17 +7,36 @@ Many of the "generic" devices like HPET or IO APIC have the ce4100 ...@@ -7,17 +7,36 @@ Many of the "generic" devices like HPET or IO APIC have the ce4100
name in their compatible property because they first appeared in this name in their compatible property because they first appeared in this
SoC. SoC.
The CPU node The CPU nodes
------------ -------------
cpu@0 {
device_type = "cpu"; cpus {
compatible = "intel,ce4100"; #address-cells = <1>;
reg = <0>; #size-cells = <0>;
lapic = <&lapic0>;
cpu@0 {
device_type = "cpu";
compatible = "intel,ce4100";
reg = <0x00>;
};
cpu@2 {
device_type = "cpu";
compatible = "intel,ce4100";
reg = <0x02>;
};
}; };
The reg property describes the CPU number. The lapic property points to A "cpu" node describes one logical processor (hardware thread).
the local APIC timer.
Required properties:
- device_type
Device type, must be "cpu".
- reg
Local APIC ID, the unique number assigned to each processor by
system hardware.
The SoC node The SoC node
------------ ------------
......
Documentation/devicetree/overlay-notes.txt
浏览文件 @ ea2a6af5
...@@ -87,8 +87,8 @@ Overlay in-kernel API ...@@ -87,8 +87,8 @@ Overlay in-kernel API
The API is quite easy to use. The API is quite easy to use.
1. Call of_overlay_apply() to create and apply an overlay changeset. The return 1. Call of_overlay_fdt_apply() to create and apply an overlay changeset. The
value is an error or a cookie identifying this overlay. return value is an error or a cookie identifying this overlay.
2. Call of_overlay_remove() to remove and cleanup the overlay changeset 2. Call of_overlay_remove() to remove and cleanup the overlay changeset
previously created via the call to of_overlay_apply(). Removal of an overlay previously created via the call to of_overlay_apply(). Removal of an overlay
......
Documentation/driver-api/usb/writing_musb_glue_layer.rst
浏览文件 @ ea2a6af5
...@@ -718,6 +718,3 @@ http://www.maximintegrated.com/app-notes/index.mvp/id/1822 ...@@ -718,6 +718,3 @@ http://www.maximintegrated.com/app-notes/index.mvp/id/1822
Texas Instruments USB Configuration Wiki Page: Texas Instruments USB Configuration Wiki Page:
http://processors.wiki.ti.com/index.php/Usbgeneralpage http://processors.wiki.ti.com/index.php/Usbgeneralpage
Analog Devices Blackfin MUSB Configuration:
http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:musb
Documentation/features/core/BPF-JIT/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/core/generic-idle-thread/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | ok |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | ok | | hexagon: | ok |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | ok |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | ok | | parisc: | ok |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/core/jump-labels/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/core/tracehook/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | ok |
| c6x: | ok | | c6x: | ok |
| cris: | TODO |
| frv: | ok |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | ok | | hexagon: | ok |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | ok |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | ok |
| nios2: | ok | | nios2: | ok |
| openrisc: | ok | | openrisc: | ok |
| parisc: | ok | | parisc: | ok |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/KASAN/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | 64-bit only | x86: | ok | 64-bit only
......
Documentation/features/debug/gcov-profile-all/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | ok | | microblaze: | ok |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/kgdb/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | ok |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | ok | | hexagon: | ok |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | ok | | microblaze: | ok |
| mips: | ok | | mips: | ok |
| mn10300: | ok |
| nios2: | ok | | nios2: | ok |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/kprobes/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/kretprobes/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/optprobes/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/stackprotector/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/uprobes/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/debug/user-ret-profiler/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/io/dma-api-debug/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | ok | | c6x: | ok |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | ok | | microblaze: | ok |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/io/dma-contiguous/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/io/sg-chain/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/lib/strncasecmp/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | TODO | | x86: | TODO |
......
Documentation/features/list-arch.sh
浏览文件 @ ea2a6af5
...@@ -17,7 +17,7 @@ for F in */*/arch-support.txt; do ...@@ -17,7 +17,7 @@ for F in */*/arch-support.txt; do
N=$(grep -h "^# Feature name:" $F | cut -c25-) N=$(grep -h "^# Feature name:" $F | cut -c25-)
C=$(grep -h "^# Kconfig:" $F | cut -c25-) C=$(grep -h "^# Kconfig:" $F | cut -c25-)
D=$(grep -h "^# description:" $F | cut -c25-) D=$(grep -h "^# description:" $F | cut -c25-)
S=$(grep -hw $ARCH $F | cut -d\| -f3) S=$(grep -hv "^#" $F | grep -w $ARCH | cut -d\| -f3)
printf "%10s/%-22s:%s| %35s # %s\n" "$SUBSYS" "$N" "$S" "$C" "$D" printf "%10s/%-22s:%s| %35s # %s\n" "$SUBSYS" "$N" "$S" "$C" "$D"
done done
......
Documentation/features/locking/cmpxchg-local/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/locking/lockdep/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | ok |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | ok | | hexagon: | ok |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | ok |
| microblaze: | ok | | microblaze: | ok |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | ok |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | ok | | um: | ok |
| unicore32: | ok | | unicore32: | ok |
| x86: | ok | | x86: | ok |
......
Documentation/features/locking/queued-rwlocks/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/locking/queued-spinlocks/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/locking/rwsem-optimized/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/perf/kprobes-event/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | ok | | hexagon: | ok |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | TODO | | sparc: | TODO |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/perf/perf-regs/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/perf/perf-stackdump/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/sched/membarrier-sync-core/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -33,28 +33,20 @@ ...@@ -33,28 +33,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/sched/numa-balancing/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | .. | | arc: | .. |
| arm: | .. | | arm: | .. |
| arm64: | .. | | arm64: | .. |
| blackfin: | .. |
| c6x: | .. | | c6x: | .. |
| cris: | .. |
| frv: | .. |
| h8300: | .. | | h8300: | .. |
| hexagon: | .. | | hexagon: | .. |
| ia64: | TODO | | ia64: | TODO |
| m32r: | .. |
| m68k: | .. | | m68k: | .. |
| metag: | .. |
| microblaze: | .. | | microblaze: | .. |
| mips: | TODO | | mips: | TODO |
| mn10300: | .. |
| nios2: | .. | | nios2: | .. |
| openrisc: | .. | | openrisc: | .. |
| parisc: | .. | | parisc: | .. |
| powerpc: | ok | | powerpc: | ok |
| s390: | .. | | s390: | .. |
| score: | .. |
| sh: | .. | | sh: | .. |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | .. | | um: | .. |
| unicore32: | .. | | unicore32: | .. |
| x86: | ok | | x86: | ok |
......
Documentation/features/seccomp/seccomp-filter/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | ok |
| um: | ok | | um: | ok |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/time/arch-tick-broadcast/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | TODO | | x86: | TODO |
......
Documentation/features/time/clockevents/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | ok |
| c6x: | ok | | c6x: | ok |
| cris: | ok |
| frv: | TODO |
| h8300: | ok | | h8300: | ok |
| hexagon: | ok | | hexagon: | ok |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | ok | | m68k: | ok |
| metag: | ok |
| microblaze: | ok | | microblaze: | ok |
| mips: | ok | | mips: | ok |
| mn10300: | ok |
| nios2: | ok | | nios2: | ok |
| openrisc: | ok | | openrisc: | ok |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | ok |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | ok | | um: | ok |
| unicore32: | ok | | unicore32: | ok |
| x86: | ok | | x86: | ok |
......
Documentation/features/time/context-tracking/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/time/irq-time-acct/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | .. | | ia64: | .. |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | .. | | parisc: | .. |
| powerpc: | .. | | powerpc: | .. |
| s390: | .. | | s390: | .. |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | .. | | sparc: | .. |
| tile: | .. |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/time/modern-timekeeping/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | TODO | | arm: | TODO |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | ok | | c6x: | ok |
| cris: | TODO |
| frv: | ok |
| h8300: | ok | | h8300: | ok |
| hexagon: | ok | | hexagon: | ok |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | ok |
| microblaze: | ok | | microblaze: | ok |
| mips: | ok | | mips: | ok |
| mn10300: | ok |
| nios2: | ok | | nios2: | ok |
| openrisc: | ok | | openrisc: | ok |
| parisc: | ok | | parisc: | ok |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | ok |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | ok | | um: | ok |
| unicore32: | ok | | unicore32: | ok |
| x86: | ok | | x86: | ok |
......
Documentation/features/time/virt-cpuacct/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | ok | | parisc: | ok |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | ok | | sparc: | ok |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/vm/ELF-ASLR/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/vm/PG_uncached/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/vm/THP/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | .. |
| c6x: | .. | | c6x: | .. |
| cris: | .. |
| frv: | .. |
| h8300: | .. | | h8300: | .. |
| hexagon: | .. | | hexagon: | .. |
| ia64: | TODO | | ia64: | TODO |
| m32r: | .. |
| m68k: | .. | | m68k: | .. |
| metag: | TODO |
| microblaze: | .. | | microblaze: | .. |
| mips: | ok | | mips: | ok |
| mn10300: | .. |
| nios2: | .. | | nios2: | .. |
| openrisc: | .. | | openrisc: | .. |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | .. |
| sh: | .. | | sh: | .. |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | .. | | um: | .. |
| unicore32: | .. | | unicore32: | .. |
| x86: | ok | | x86: | ok |
......
Documentation/features/vm/TLB/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | .. | | c6x: | .. |
| cris: | .. |
| frv: | .. |
| h8300: | .. | | h8300: | .. |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | .. | | m68k: | .. |
| metag: | TODO |
| microblaze: | .. | | microblaze: | .. |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | .. | | nios2: | .. |
| openrisc: | .. | | openrisc: | .. |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | .. |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | .. | | um: | .. |
| unicore32: | .. | | unicore32: | .. |
| x86: | ok | | x86: | ok |
......
Documentation/features/vm/huge-vmap/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | TODO | | arc: | TODO |
| arm: | TODO | | arm: | TODO |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | TODO | | powerpc: | TODO |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | TODO | | sh: | TODO |
| sparc: | TODO | | sparc: | TODO |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/vm/ioremap_prot/arch-support.txt
浏览文件 @ ea2a6af5
...@@ -10,28 +10,20 @@ ...@@ -10,28 +10,20 @@
| arc: | ok | | arc: | ok |
| arm: | TODO | | arm: | TODO |
| arm64: | TODO | | arm64: | TODO |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | TODO | | s390: | TODO |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | TODO | | sparc: | TODO |
| tile: | ok |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
Documentation/features/vm/numa-memblock/arch-support.txt
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| arc: | .. | | arc: | .. |
| arm: | .. | | arm: | .. |
| arm64: | .. | | arm64: | .. |
| blackfin: | .. |
| c6x: | .. | | c6x: | .. |
| cris: | .. |
| frv: | .. |
| h8300: | .. | | h8300: | .. |
| hexagon: | .. | | hexagon: | .. |
| ia64: | ok | | ia64: | ok |
| m32r: | TODO |
| m68k: | .. | | m68k: | .. |
| metag: | ok |
| microblaze: | ok | | microblaze: | ok |
| mips: | ok | | mips: | ok |
| mn10300: | TODO |
| nios2: | .. | | nios2: | .. |
| openrisc: | .. | | openrisc: | .. |
| parisc: | .. | | parisc: | .. |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | ok |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | .. | | um: | .. |
| unicore32: | .. | | unicore32: | .. |
| x86: | ok | | x86: | ok |
......
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| arc: | ok | | arc: | ok |
| arm: | ok | | arm: | ok |
| arm64: | ok | | arm64: | ok |
| blackfin: | TODO |
| c6x: | TODO | | c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO | | h8300: | TODO |
| hexagon: | TODO | | hexagon: | TODO |
| ia64: | TODO | | ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO | | m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO | | microblaze: | TODO |
| mips: | TODO | | mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO | | nios2: | TODO |
| openrisc: | TODO | | openrisc: | TODO |
| parisc: | TODO | | parisc: | TODO |
| powerpc: | ok | | powerpc: | ok |
| s390: | ok | | s390: | ok |
| score: | TODO |
| sh: | ok | | sh: | ok |
| sparc: | ok | | sparc: | ok |
| tile: | TODO |
| um: | TODO | | um: | TODO |
| unicore32: | TODO | | unicore32: | TODO |
| x86: | ok | | x86: | ok |
......
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================================
Fujitsu FR-V LINUX DOCUMENTATION
================================
This directory contains documentation for the Fujitsu FR-V CPU architecture
port of Linux.
The following documents are available:
(*) features.txt
A description of the basic features inherent in this architecture port.
(*) configuring.txt
A summary of the configuration options particular to this architecture.
(*) booting.txt
A description of how to boot the kernel image and a summary of the kernel
command line options.
(*) gdbstub.txt
A description of how to debug the kernel using GDB attached by serial
port, and a summary of the services available.
(*) mmu-layout.txt
A description of the virtual and physical memory layout used in the
MMU linux kernel, and the registers used to support it.
(*) gdbinit
An example .gdbinit file for use with GDB. It includes macros for viewing
MMU state on the FR451. See mmu-layout.txt for more information.
(*) clock.txt
A description of the CPU clock scaling interface.
(*) atomic-ops.txt
A description of how the FR-V kernel's atomic operations work.
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=====================================
FUJITSU FR-V KERNEL ATOMIC OPERATIONS
=====================================
On the FR-V CPUs, there is only one atomic Read-Modify-Write operation: the SWAP/SWAPI
instruction. Unfortunately, this alone can't be used to implement the following operations:
(*) Atomic add to memory
(*) Atomic subtract from memory
(*) Atomic bit modification (set, clear or invert)
(*) Atomic compare and exchange
On such CPUs, the standard way of emulating such operations in uniprocessor mode is to disable
interrupts, but on the FR-V CPUs, modifying the PSR takes a lot of clock cycles, and it has to be
done twice. This means the CPU runs for a relatively long time with interrupts disabled,
potentially having a great effect on interrupt latency.
=============
NEW ALGORITHM
=============
To get around this, the following algorithm has been implemented. It operates in a way similar to
the LL/SC instruction pairs supported on a number of platforms.
(*) The CCCR.CC3 register is reserved within the kernel to act as an atomic modify abort flag.
(*) In the exception prologues run on kernel->kernel entry, CCCR.CC3 is set to 0 (Undefined
state).
(*) All atomic operations can then be broken down into the following algorithm:
(1) Set ICC3.Z to true and set CC3 to True (ORCC/CKEQ/ORCR).
(2) Load the value currently in the memory to be modified into a register.
(3) Make changes to the value.
(4) If CC3 is still True, simultaneously and atomically (by VLIW packing):
(a) Store the modified value back to memory.
(b) Set ICC3.Z to false (CORCC on GR29 is sufficient for this - GR29 holds the current
task pointer in the kernel, and so is guaranteed to be non-zero).
(5) If ICC3.Z is still true, go back to step (1).
This works in a non-SMP environment because any interrupt or other exception that happens between
steps (1) and (4) will set CC3 to the Undefined, thus aborting the store in (4a), and causing the
condition in ICC3 to remain with the Z flag set, thus causing step (5) to loop back to step (1).
This algorithm suffers from two problems:
(1) The condition CCCR.CC3 is cleared unconditionally by an exception, irrespective of whether or
not any changes were made to the target memory location during that exception.
(2) The branch from step (5) back to step (1) may have to happen more than once until the store
manages to take place. In theory, this loop could cycle forever because there are too many
interrupts coming in, but it's unlikely.
=======
EXAMPLE
=======
Taking an example from include/asm-frv/atomic.h:
static inline int atomic_add_return(int i, atomic_t *v)
{
unsigned long val;
asm("0: \n"
It starts by setting ICC3.Z to true for later use, and also transforming that into CC3 being in the
True state.
" orcc gr0,gr0,gr0,icc3 \n" <-- (1)
" ckeq icc3,cc7 \n" <-- (1)
Then it does the load. Note that the final phase of step (1) is done at the same time as the
load. The VLIW packing ensures they are done simultaneously. The ".p" on the load must not be
removed without swapping the order of these two instructions.
" ld.p %M0,%1 \n" <-- (2)
" orcr cc7,cc7,cc3 \n" <-- (1)
Then the proposed modification is generated. Note that the old value can be retained if required
(such as in test_and_set_bit()).
" add%I2 %1,%2,%1 \n" <-- (3)
Then it attempts to store the value back, contingent on no exception having cleared CC3 since it
was set to True.
" cst.p %1,%M0 ,cc3,#1 \n" <-- (4a)
It simultaneously records the success or failure of the store in ICC3.Z.
" corcc gr29,gr29,gr0 ,cc3,#1 \n" <-- (4b)
Such that the branch can then be taken if the operation was aborted.
" beq icc3,#0,0b \n" <-- (5)
: "+U"(v->counter), "=&r"(val)
: "NPr"(i)
: "memory", "cc7", "cc3", "icc3"
);
return val;
}
=============
CONFIGURATION
=============
The atomic ops implementation can be made inline or out-of-line by changing the
CONFIG_FRV_OUTOFLINE_ATOMIC_OPS configuration variable. Making it out-of-line has a number of
advantages:
- The resulting kernel image may be smaller
- Debugging is easier as atomic ops can just be stepped over and they can be breakpointed
Keeping it inline also has a number of advantages:
- The resulting kernel may be Faster
- no out-of-line function calls need to be made
- the compiler doesn't have half its registers clobbered by making a call
The out-of-line implementations live in arch/frv/lib/atomic-ops.S.
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=========================
BOOTING FR-V LINUX KERNEL
=========================
======================
PROVIDING A FILESYSTEM
======================
First of all, a root filesystem must be made available. This can be done in
one of two ways:
(1) NFS Export
A filesystem should be constructed in a directory on an NFS server that
the target board can reach. This directory should then be NFS exported
such that the target board can read and write into it as root.
(2) Flash Filesystem (JFFS2 Recommended)
In this case, the image must be stored or built up on flash before it
can be used. A complete image can be built using the mkfs.jffs2 or
similar program and then downloaded and stored into flash by RedBoot.
========================
LOADING THE KERNEL IMAGE
========================
The kernel will need to be loaded into RAM by RedBoot (or by some alternative
boot loader) before it can be run. The kernel image (arch/frv/boot/Image) may
be loaded in one of three ways:
(1) Load from Flash
This is the simplest. RedBoot can store an image in the flash (see the
RedBoot documentation) and then load it back into RAM. RedBoot keeps
track of the load address, entry point and size, so the command to do
this is simply:
fis load linux
The image is then ready to be executed.
(2) Load by TFTP
The following command will download a raw binary kernel image from the
default server (as negotiated by BOOTP) and store it into RAM:
load -b 0x00100000 -r /tftpboot/image.bin
The image is then ready to be executed.
(3) Load by Y-Modem
The following command will download a raw binary kernel image across the
serial port that RedBoot is currently using:
load -m ymodem -b 0x00100000 -r zImage
The serial client (such as minicom) must then be told to transmit the
program by Y-Modem.
When finished, the image will then be ready to be executed.
==================
BOOTING THE KERNEL
==================
Boot the image with the following RedBoot command:
exec -c "<CMDLINE>" 0x00100000
For example:
exec -c "console=ttySM0,115200 ip=:::::dhcp root=/dev/mtdblock2 rw"
This will start the kernel running. Note that if the GDB-stub is compiled in,
then the kernel will immediately wait for GDB to connect over serial before
doing anything else. See the section on kernel debugging with GDB.
The kernel command line <CMDLINE> tells the kernel where its console is and
how to find its root filesystem. This is made up of the following components,
separated by spaces:
(*) console=ttyS<x>[,<baud>[<parity>[<bits>[<flow>]]]]
This specifies that the system console should output through on-chip
serial port <x> (which can be "0" or "1").
<baud> is a standard baud rate between 1200 and 115200 (default 9600).
<parity> is a parity setting of "N", "O", "E", "M" or "S" for None, Odd,
Even, Mark or Space. "None" is the default.
<stop> is "7" or "8" for the number of bits per character. "8" is the
default.
<flow> is "r" to use flow control (XCTS on serial port 2 only). The
default is to not use flow control.
For example:
console=ttyS0,115200
To use the first on-chip serial port at baud rate 115200, no parity, 8
bits, and no flow control.
(*) root=<xxxx>
This specifies the device upon which the root filesystem resides. It
may be specified by major and minor number, device path, or even
partition uuid, if supported. For example:
/dev/nfs NFS root filesystem
/dev/mtdblock3 Fourth RedBoot partition on the System Flash
PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF/PARTNROFF=1
first partition after the partition with the given UUID
253:0 Device with major 253 and minor 0
Authoritative information can be found in
"Documentation/admin-guide/kernel-parameters.rst".
(*) rw
Start with the root filesystem mounted Read/Write.
The remaining components are all optional:
(*) ip=<ip>::::<host>:<iface>:<cfg>
Configure the network interface. If <cfg> is "off" then <ip> should
specify the IP address for the network device <iface>. <host> provide
the hostname for the device.
If <cfg> is "bootp" or "dhcp", then all of these parameters will be
discovered by consulting a BOOTP or DHCP server.
For example, the following might be used:
ip=192.168.73.12::::frv:eth0:off
This sets the IP address on the VDK motherboard RTL8029 ethernet chipset
(eth0) to be 192.168.73.12, and sets the board's hostname to be "frv".
(*) nfsroot=<server>:<dir>[,v<vers>]
This is mandatory if "root=/dev/nfs" is given as an option. It tells the
kernel the IP address of the NFS server providing its root filesystem,
and the pathname on that server of the filesystem.
The NFS version to use can also be specified. v2 and v3 are supported by
Linux.
For example:
nfsroot=192.168.73.1:/nfsroot-frv
(*) profile=1
Turns on the kernel profiler (accessible through /proc/profile).
(*) console=gdb0
This can be used as an alternative to the "console=ttyS..." listed
above. I tells the kernel to pass the console output to GDB if the
gdbstub is compiled in to the kernel.
If this is used, then the gdbstub passes the text to GDB, which then
simply dumps it to its standard output.
(*) mem=<xxx>M
Normally the kernel will work out how much SDRAM it has by reading the
SDRAM controller registers. That can be overridden with this
option. This allows the kernel to be told that it has <xxx> megabytes of
memory available.
(*) init=<prog> [<arg> [<arg> [<arg> ...]]]
This tells the kernel what program to run initially. By default this is
/sbin/init, but /sbin/sash or /bin/sh are common alternatives.
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Clock scaling
-------------
The kernel supports scaling of CLCK.CMODE, CLCK.CM and CLKC.P0 clock
registers. If built with CONFIG_PM and CONFIG_SYSCTL options enabled, four
extra files will appear in the directory /proc/sys/pm/. Reading these files
will show:
p0 -- current value of the P0 bit in CLKC register.
cm -- current value of the CM bits in CLKC register.
cmode -- current value of the CMODE bits in CLKC register.
On all boards, the 'p0' file should also be writable, and either '1' or '0'
can be rewritten, to set or clear the CLKC_P0 bit respectively, hence
controlling whether the resource bus rate clock is halved.
The 'cm' file should also be available on all boards. '0' can be written to it
to shift the board into High-Speed mode (normal), and '1' can be written to
shift the board into Medium-Speed mode. Selecting Low-Speed mode is not
supported by this interface, even though some CPUs do support it.
On the boards with FR405 CPU (i.e. CB60 and CB70), the 'cmode' file is also
writable, allowing the CPU core speed (and other clock speeds) to be
controlled from userspace.
Determining current and possible settings
-----------------------------------------
The current state and the available masks can be found in /proc/cpuinfo. For
example, on the CB70:
# cat /proc/cpuinfo
CPU-Series: fr400
CPU-Core: fr405, gr0-31, BE, CCCR
CPU: mb93405
MMU: Prot
FP-Media: fr0-31, Media
System: mb93091-cb70, mb93090-mb00
PM-Controls: cmode=0xd31f, cm=0x3, p0=0x3, suspend=0x9
PM-Status: cmode=3, cm=0, p0=0
Clock-In: 50.00 MHz
Clock-Core: 300.00 MHz
Clock-SDRAM: 100.00 MHz
Clock-CBus: 100.00 MHz
Clock-Res: 50.00 MHz
Clock-Ext: 50.00 MHz
Clock-DSU: 25.00 MHz
BogoMips: 300.00
And on the PDK, the PM lines look like the following:
PM-Controls: cm=0x3, p0=0x3, suspend=0x9
PM-Status: cmode=9, cm=0, p0=0
The PM-Controls line, if present, will indicate which /proc/sys/pm files can
be set to what values. The specification values are bitmasks; so, for example,
"suspend=0x9" indicates that 0 and 3 can be written validly to
/proc/sys/pm/suspend.
The PM-Controls line will only be present if CONFIG_PM is configured to Y.
The PM-Status line indicates which clock controls are set to which value. If
the file can be read, then the suspend value must be 0, and so that's not
included.
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=======================================
FUJITSU FR-V LINUX KERNEL CONFIGURATION
=======================================
=====================
CONFIGURATION OPTIONS
=====================
The most important setting is in the "MMU support options" tab (the first
presented in the configuration tools available):
(*) "Kernel Type"
This options allows selection of normal, MMU-requiring linux, and uClinux
(which doesn't require an MMU and doesn't have inter-process protection).
There are a number of settings in the "Processor type and features" section of
the kernel configuration that need to be considered.
(*) "CPU"
The register and instruction sets at the core of the processor. This can
only be set to "FR40x/45x/55x" at the moment - but this permits usage of
the kernel with MB93091 CB10, CB11, CB30, CB41, CB60, CB70 and CB451
CPU boards, and with the MB93093 PDK board.
(*) "System"
This option allows a choice of basic system. This governs the peripherals
that are expected to be available.
(*) "Motherboard"
This specifies the type of motherboard being used, and the peripherals
upon it. Currently only "MB93090-MB00" can be set here.
(*) "Default cache-write mode"
This controls the initial data cache write management mode. By default
Write-Through is selected, but Write-Back (Copy-Back) can also be
selected. This can be changed dynamically once the kernel is running (see
features.txt).
There are some architecture specific configuration options in the "General
Setup" section of the kernel configuration too:
(*) "Reserve memory uncached for (PCI) DMA"
This requests that a uClinux kernel set aside some memory in an uncached
window for the use as consistent DMA memory (mainly for PCI). At least a
megabyte will be allocated in this way, possibly more. Any memory so
reserved will not be available for normal allocations.
(*) "Kernel support for ELF-FDPIC binaries"
This enables the binary-format driver for the new FDPIC ELF binaries that
this platform normally uses. These binaries are totally relocatable -
their separate sections can relocated independently, allowing them to be
shared on uClinux where possible. This should normally be enabled.
(*) "Kernel image protection"
This makes the protection register governing access to the core kernel
image prohibit access by userspace programs. This option is available on
uClinux only.
There are also a number of settings in the "Kernel Hacking" section of the
kernel configuration especially for debugging a kernel on this
architecture. See the "gdbstub.txt" file for information about those.
======================
DEFAULT CONFIGURATIONS
======================
The kernel sources include a number of example default configurations:
(*) defconfig-mb93091
Default configuration for the MB93091-VDK with both CPU board and
MB93090-MB00 motherboard running uClinux.
(*) defconfig-mb93091-fb
Default configuration for the MB93091-VDK with CPU board,
MB93090-MB00 motherboard, and DAV board running uClinux.
Includes framebuffer driver.
(*) defconfig-mb93093
Default configuration for the MB93093-PDK board running uClinux.
(*) defconfig-cb70-standalone
Default configuration for the MB93091-VDK with only CB70 CPU board
running uClinux. This will use the CB70's DM9000 for network access.
(*) defconfig-mmu
Default configuration for the MB93091-VDK with both CB451 CPU board and
MB93090-MB00 motherboard running MMU linux.
(*) defconfig-mmu-audio
Default configuration for the MB93091-VDK with CB451 CPU board, DAV
board, and MB93090-MB00 motherboard running MMU linux. Includes
audio driver.
(*) defconfig-mmu-fb
Default configuration for the MB93091-VDK with CB451 CPU board, DAV
board, and MB93090-MB00 motherboard running MMU linux. Includes
framebuffer driver.
(*) defconfig-mmu-standalone
Default configuration for the MB93091-VDK with only CB451 CPU board
running MMU linux.
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===========================
FUJITSU FR-V LINUX FEATURES
===========================
This kernel port has a number of features of which the user should be aware:
(*) Linux and uClinux
The FR-V architecture port supports both normal MMU linux and uClinux out
of the same sources.
(*) CPU support
Support for the FR401, FR403, FR405, FR451 and FR555 CPUs should work with
the same uClinux kernel configuration.
In normal (MMU) Linux mode, only the FR451 CPU will work as that is the
only one with a suitably featured CPU.
The kernel is written and compiled with the assumption that only the
bottom 32 GR registers and no FR registers will be used by the kernel
itself, however all extra userspace registers will be saved on context
switch. Note that since most CPUs can't support lazy switching, no attempt
is made to do lazy register saving where that would be possible (FR555
only currently).
(*) Board support
The board on which the kernel will run can be configured on the "Processor
type and features" configuration tab.
Set the System to "MB93093-PDK" to boot from the MB93093 (FR403) PDK.
Set the System to "MB93091-VDK" to boot from the CB11, CB30, CB41, CB60,
CB70 or CB451 VDK boards. Set the Motherboard setting to "MB93090-MB00" to
boot with the standard ATA90590B VDK motherboard, and set it to "None" to
boot without any motherboard.
(*) Binary Formats
The only userspace binary format supported is FDPIC ELF. Normal ELF, FLAT
and AOUT binaries are not supported for this architecture.
FDPIC ELF supports shared library and program interpreter facilities.
(*) Scheduler Speed
The kernel scheduler runs at 100Hz irrespective of the clock speed on this
architecture. This value is set in asm/param.h (see the HZ macro defined
there).
(*) Normal (MMU) Linux Memory Layout.
See mmu-layout.txt in this directory for a description of the normal linux
memory layout
See include/asm-frv/mem-layout.h for constants pertaining to the memory
layout.
See include/asm-frv/mb-regs.h for the constants pertaining to the I/O bus
controller configuration.
(*) uClinux Memory Layout
The memory layout used by the uClinux kernel is as follows:
0x00000000 - 0x00000FFF Null pointer catch page
0x20000000 - 0x200FFFFF CS2# [PDK] FPGA
0xC0000000 - 0xCFFFFFFF SDRAM
0xC0000000 Base of Linux kernel image
0xE0000000 - 0xEFFFFFFF CS2# [VDK] SLBUS/PCI window
0xF0000000 - 0xF0FFFFFF CS5# MB93493 CSC area (DAV daughter board)
0xF1000000 - 0xF1FFFFFF CS7# [CB70/CB451] CPU-card PCMCIA port space
0xFC000000 - 0xFC0FFFFF CS1# [VDK] MB86943 config space
0xFC100000 - 0xFC1FFFFF CS6# [CB70/CB451] CPU-card DM9000 NIC space
0xFC100000 - 0xFC1FFFFF CS6# [PDK] AX88796 NIC space
0xFC200000 - 0xFC2FFFFF CS3# MB93493 CSR area (DAV daughter board)
0xFD000000 - 0xFDFFFFFF CS4# [CB70/CB451] CPU-card extra flash space
0xFE000000 - 0xFEFFFFFF Internal CPU peripherals
0xFF000000 - 0xFF1FFFFF CS0# Flash 1
0xFF200000 - 0xFF3FFFFF CS0# Flash 2
0xFFC00000 - 0xFFC0001F CS0# [VDK] FPGA
The kernel reads the size of the SDRAM from the memory bus controller
registers by default.
The kernel initialisation code (1) adjusts the SDRAM base addresses to
move the SDRAM to desired address, (2) moves the kernel image down to the
bottom of SDRAM, (3) adjusts the bus controller registers to move I/O
windows, and (4) rearranges the protection registers to protect all of
this.
The reasons for doing this are: (1) the page at address 0 should be
inaccessible so that NULL pointer errors can be caught; and (2) the bottom
three quarters are left unoccupied so that an FR-V CPU with an MMU can use
it for virtual userspace mappings.
See include/asm-frv/mem-layout.h for constants pertaining to the memory
layout.
See include/asm-frv/mb-regs.h for the constants pertaining to the I/O bus
controller configuration.
(*) uClinux Memory Protection
A DAMPR register is used to cover the entire region used for I/O
(0xE0000000 - 0xFFFFFFFF). This permits the kernel to make uncached
accesses to this region. Userspace is not permitted to access it.
The DAMPR/IAMPR protection registers not in use for any other purpose are
tiled over the top of the SDRAM such that:
(1) The core kernel image is covered by as small a tile as possible
granting only the kernel access to the underlying data, whilst
making sure no SDRAM is actually made unavailable by this approach.
(2) All other tiles are arranged to permit userspace access to the rest
of the SDRAM.
Barring point (1), there is nothing to protect kernel data against
userspace damage - but this is uClinux.
(*) Exceptions and Fixups
Since the FR40x and FR55x CPUs that do not have full MMUs generate
imprecise data error exceptions, there are currently no automatic fixup
services available in uClinux. This includes misaligned memory access
fixups.
Userspace EFAULT errors can be trapped by issuing a MEMBAR instruction and
forcing the fault to happen there.
On the FR451, however, data exceptions are mostly precise, and so
exception fixup handling is implemented as normal.
(*) Userspace Breakpoints
The ptrace() system call supports the following userspace debugging
features:
(1) Hardware assisted single step.
(2) Breakpoint via the FR-V "BREAK" instruction.
(3) Breakpoint via the FR-V "TIRA GR0, #1" instruction.
(4) Syscall entry/exit trap.
Each of the above generates a SIGTRAP.
(*) On-Chip Serial Ports
The FR-V on-chip serial ports are made available as ttyS0 and ttyS1. Note
that if the GDB stub is compiled in, ttyS1 will not actually be available
as it will be being used for the GDB stub.
These ports can be made by:
mknod /dev/ttyS0 c 4 64
mknod /dev/ttyS1 c 4 65
(*) Maskable Interrupts
Level 15 (Non-maskable) interrupts are dealt with by the GDB stub if
present, and cause a panic if not. If the GDB stub is present, ttyS1's
interrupts are rated at level 15.
All other interrupts are distributed over the set of available priorities
so that no IRQs are shared where possible. The arch interrupt handling
routines attempt to disentangle the various sources available through the
CPU's own multiplexor, and those on off-CPU peripherals.
(*) Accessing PCI Devices
Where PCI is available, care must be taken when dealing with drivers that
access PCI devices. PCI devices present their data in little-endian form,
but the CPU sees it in big-endian form. The macros in asm/io.h try to get
this right, but may not under all circumstances...
(*) Ax88796 Ethernet Driver
The MB93093 PDK board has an Ax88796 ethernet chipset (an NE2000 clone). A
driver has been written to deal specifically with this. The driver
provides MII services for the card.
The driver can be configured by running make xconfig, and going to:
(*) Network device support
- turn on "Network device support"
(*) Ethernet (10 or 100Mbit)
- turn on "Ethernet (10 or 100Mbit)"
- turn on "AX88796 NE2000 compatible chipset"
The driver can be found in:
drivers/net/ax88796.c
include/asm/ax88796.h
(*) WorkRAM Driver
This driver provides a character device that permits access to the WorkRAM
that can be found on the FR451 CPU. Each page is accessible through a
separate minor number, thereby permitting each page to have its own
filesystem permissions set on the device file.
The device files should be:
mknod /dev/frv/workram0 c 240 0
mknod /dev/frv/workram1 c 240 1
mknod /dev/frv/workram2 c 240 2
...
The driver will not permit the opening of any device file that does not
correspond to at least a partial page of WorkRAM. So the first device file
is the only one available on the FR451. If any other CPU is detected, none
of the devices will be openable.
The devices can be accessed with read, write and llseek, and can also be
mmapped. If they're mmapped, they will only map at the appropriate
0x7e8nnnnn address on linux and at the 0xfe8nnnnn address on uClinux. If
MAP_FIXED is not specified, the appropriate address will be chosen anyway.
The mappings must be MAP_SHARED not MAP_PRIVATE, and must not be
PROT_EXEC. They must also start at file offset 0, and must not be longer
than one page in size.
This driver can be configured by running make xconfig, and going to:
(*) Character devices
- turn on "Fujitsu FR-V CPU WorkRAM support"
(*) Dynamic data cache write mode changing
It is possible to view and to change the data cache's write mode through
the /proc/sys/frv/cache-mode file while the kernel is running. There are
two modes available:
NAME MEANING
===== ==========================================
wthru Data cache is in Write-Through mode
wback Data cache is in Write-Back/Copy-Back mode
To read the cache mode:
# cat /proc/sys/frv/cache-mode
wthru
To change the cache mode:
# echo wback >/proc/sys/frv/cache-mode
# cat /proc/sys/frv/cache-mode
wback
(*) MMU Context IDs and Pinning
On MMU Linux the CPU supports the concept of a context ID in its MMU to
make it more efficient (TLB entries are labelled with a context ID to link
them to specific tasks).
Normally once a context ID is allocated, it will remain affixed to a task
or CLONE_VM'd group of tasks for as long as it exists. However, since the
kernel is capable of supporting more tasks than there are possible ID
numbers, the kernel will pass context IDs from one task to another if
there are insufficient available.
The context ID currently in use by a task can be viewed in /proc:
# grep CXNR /proc/1/status
CXNR: 1
Note that kernel threads do not have a userspace context, and so will not
show a CXNR entry in that file.
Under some circumstances, however, it is desirable to pin a context ID on
a process such that the kernel won't pass it on. This can be done by
writing the process ID of the target process to a special file:
# echo 17 >/proc/sys/frv/pin-cxnr
Reading from the file will then show the context ID pinned.
# cat /proc/sys/frv/pin-cxnr
4
The context ID will remain pinned as long as any process is using that
context, i.e.: when the all the subscribing processes have exited or
exec'd; or when an unpinning request happens:
# echo 0 >/proc/sys/frv/pin-cxnr
When there isn't a pinned context, the file shows -1:
# cat /proc/sys/frv/pin-cxnr
-1
Documentation/frv/gdbinit 已删除 100644 → 0
浏览文件 @ 1b5d43cf
set remotebreak 1
define _amr
printf "AMRx DAMR IAMR \n"
printf "==== ===================== =====================\n"
printf "amr0 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x0].L,__debug_mmu.damr[0x0].P,__debug_mmu.iamr[0x0].L,__debug_mmu.iamr[0x0].P
printf "amr1 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x1].L,__debug_mmu.damr[0x1].P,__debug_mmu.iamr[0x1].L,__debug_mmu.iamr[0x1].P
printf "amr2 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x2].L,__debug_mmu.damr[0x2].P,__debug_mmu.iamr[0x2].L,__debug_mmu.iamr[0x2].P
printf "amr3 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x3].L,__debug_mmu.damr[0x3].P,__debug_mmu.iamr[0x3].L,__debug_mmu.iamr[0x3].P
printf "amr4 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x4].L,__debug_mmu.damr[0x4].P,__debug_mmu.iamr[0x4].L,__debug_mmu.iamr[0x4].P
printf "amr5 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x5].L,__debug_mmu.damr[0x5].P,__debug_mmu.iamr[0x5].L,__debug_mmu.iamr[0x5].P
printf "amr6 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x6].L,__debug_mmu.damr[0x6].P,__debug_mmu.iamr[0x6].L,__debug_mmu.iamr[0x6].P
printf "amr7 : L:%08lx P:%08lx : L:%08lx P:%08lx\n",__debug_mmu.damr[0x7].L,__debug_mmu.damr[0x7].P,__debug_mmu.iamr[0x7].L,__debug_mmu.iamr[0x7].P
printf "amr8 : L:%08lx P:%08lx\n",__debug_mmu.damr[0x8].L,__debug_mmu.damr[0x8].P
printf "amr9 : L:%08lx P:%08lx\n",__debug_mmu.damr[0x9].L,__debug_mmu.damr[0x9].P
printf "amr10: L:%08lx P:%08lx\n",__debug_mmu.damr[0xa].L,__debug_mmu.damr[0xa].P
printf "amr11: L:%08lx P:%08lx\n",__debug_mmu.damr[0xb].L,__debug_mmu.damr[0xb].P
end
define _tlb
printf "tlb[0x00]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x0].L,__debug_mmu.tlb[0x0].P,__debug_mmu.tlb[0x40+0x0].L,__debug_mmu.tlb[0x40+0x0].P
printf "tlb[0x01]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x1].L,__debug_mmu.tlb[0x1].P,__debug_mmu.tlb[0x40+0x1].L,__debug_mmu.tlb[0x40+0x1].P
printf "tlb[0x02]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x2].L,__debug_mmu.tlb[0x2].P,__debug_mmu.tlb[0x40+0x2].L,__debug_mmu.tlb[0x40+0x2].P
printf "tlb[0x03]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x3].L,__debug_mmu.tlb[0x3].P,__debug_mmu.tlb[0x40+0x3].L,__debug_mmu.tlb[0x40+0x3].P
printf "tlb[0x04]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x4].L,__debug_mmu.tlb[0x4].P,__debug_mmu.tlb[0x40+0x4].L,__debug_mmu.tlb[0x40+0x4].P
printf "tlb[0x05]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x5].L,__debug_mmu.tlb[0x5].P,__debug_mmu.tlb[0x40+0x5].L,__debug_mmu.tlb[0x40+0x5].P
printf "tlb[0x06]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x6].L,__debug_mmu.tlb[0x6].P,__debug_mmu.tlb[0x40+0x6].L,__debug_mmu.tlb[0x40+0x6].P
printf "tlb[0x07]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x7].L,__debug_mmu.tlb[0x7].P,__debug_mmu.tlb[0x40+0x7].L,__debug_mmu.tlb[0x40+0x7].P
printf "tlb[0x08]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x8].L,__debug_mmu.tlb[0x8].P,__debug_mmu.tlb[0x40+0x8].L,__debug_mmu.tlb[0x40+0x8].P
printf "tlb[0x09]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x9].L,__debug_mmu.tlb[0x9].P,__debug_mmu.tlb[0x40+0x9].L,__debug_mmu.tlb[0x40+0x9].P
printf "tlb[0x0a]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0xa].L,__debug_mmu.tlb[0xa].P,__debug_mmu.tlb[0x40+0xa].L,__debug_mmu.tlb[0x40+0xa].P
printf "tlb[0x0b]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0xb].L,__debug_mmu.tlb[0xb].P,__debug_mmu.tlb[0x40+0xb].L,__debug_mmu.tlb[0x40+0xb].P
printf "tlb[0x0c]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0xc].L,__debug_mmu.tlb[0xc].P,__debug_mmu.tlb[0x40+0xc].L,__debug_mmu.tlb[0x40+0xc].P
printf "tlb[0x0d]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0xd].L,__debug_mmu.tlb[0xd].P,__debug_mmu.tlb[0x40+0xd].L,__debug_mmu.tlb[0x40+0xd].P
printf "tlb[0x0e]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0xe].L,__debug_mmu.tlb[0xe].P,__debug_mmu.tlb[0x40+0xe].L,__debug_mmu.tlb[0x40+0xe].P
printf "tlb[0x0f]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0xf].L,__debug_mmu.tlb[0xf].P,__debug_mmu.tlb[0x40+0xf].L,__debug_mmu.tlb[0x40+0xf].P
printf "tlb[0x10]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x10].L,__debug_mmu.tlb[0x10].P,__debug_mmu.tlb[0x40+0x10].L,__debug_mmu.tlb[0x40+0x10].P
printf "tlb[0x11]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x11].L,__debug_mmu.tlb[0x11].P,__debug_mmu.tlb[0x40+0x11].L,__debug_mmu.tlb[0x40+0x11].P
printf "tlb[0x12]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x12].L,__debug_mmu.tlb[0x12].P,__debug_mmu.tlb[0x40+0x12].L,__debug_mmu.tlb[0x40+0x12].P
printf "tlb[0x13]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x13].L,__debug_mmu.tlb[0x13].P,__debug_mmu.tlb[0x40+0x13].L,__debug_mmu.tlb[0x40+0x13].P
printf "tlb[0x14]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x14].L,__debug_mmu.tlb[0x14].P,__debug_mmu.tlb[0x40+0x14].L,__debug_mmu.tlb[0x40+0x14].P
printf "tlb[0x15]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x15].L,__debug_mmu.tlb[0x15].P,__debug_mmu.tlb[0x40+0x15].L,__debug_mmu.tlb[0x40+0x15].P
printf "tlb[0x16]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x16].L,__debug_mmu.tlb[0x16].P,__debug_mmu.tlb[0x40+0x16].L,__debug_mmu.tlb[0x40+0x16].P
printf "tlb[0x17]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x17].L,__debug_mmu.tlb[0x17].P,__debug_mmu.tlb[0x40+0x17].L,__debug_mmu.tlb[0x40+0x17].P
printf "tlb[0x18]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x18].L,__debug_mmu.tlb[0x18].P,__debug_mmu.tlb[0x40+0x18].L,__debug_mmu.tlb[0x40+0x18].P
printf "tlb[0x19]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x19].L,__debug_mmu.tlb[0x19].P,__debug_mmu.tlb[0x40+0x19].L,__debug_mmu.tlb[0x40+0x19].P
printf "tlb[0x1a]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x1a].L,__debug_mmu.tlb[0x1a].P,__debug_mmu.tlb[0x40+0x1a].L,__debug_mmu.tlb[0x40+0x1a].P
printf "tlb[0x1b]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x1b].L,__debug_mmu.tlb[0x1b].P,__debug_mmu.tlb[0x40+0x1b].L,__debug_mmu.tlb[0x40+0x1b].P
printf "tlb[0x1c]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x1c].L,__debug_mmu.tlb[0x1c].P,__debug_mmu.tlb[0x40+0x1c].L,__debug_mmu.tlb[0x40+0x1c].P
printf "tlb[0x1d]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x1d].L,__debug_mmu.tlb[0x1d].P,__debug_mmu.tlb[0x40+0x1d].L,__debug_mmu.tlb[0x40+0x1d].P
printf "tlb[0x1e]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x1e].L,__debug_mmu.tlb[0x1e].P,__debug_mmu.tlb[0x40+0x1e].L,__debug_mmu.tlb[0x40+0x1e].P
printf "tlb[0x1f]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x1f].L,__debug_mmu.tlb[0x1f].P,__debug_mmu.tlb[0x40+0x1f].L,__debug_mmu.tlb[0x40+0x1f].P
printf "tlb[0x20]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x20].L,__debug_mmu.tlb[0x20].P,__debug_mmu.tlb[0x40+0x20].L,__debug_mmu.tlb[0x40+0x20].P
printf "tlb[0x21]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x21].L,__debug_mmu.tlb[0x21].P,__debug_mmu.tlb[0x40+0x21].L,__debug_mmu.tlb[0x40+0x21].P
printf "tlb[0x22]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x22].L,__debug_mmu.tlb[0x22].P,__debug_mmu.tlb[0x40+0x22].L,__debug_mmu.tlb[0x40+0x22].P
printf "tlb[0x23]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x23].L,__debug_mmu.tlb[0x23].P,__debug_mmu.tlb[0x40+0x23].L,__debug_mmu.tlb[0x40+0x23].P
printf "tlb[0x24]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x24].L,__debug_mmu.tlb[0x24].P,__debug_mmu.tlb[0x40+0x24].L,__debug_mmu.tlb[0x40+0x24].P
printf "tlb[0x25]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x25].L,__debug_mmu.tlb[0x25].P,__debug_mmu.tlb[0x40+0x25].L,__debug_mmu.tlb[0x40+0x25].P
printf "tlb[0x26]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x26].L,__debug_mmu.tlb[0x26].P,__debug_mmu.tlb[0x40+0x26].L,__debug_mmu.tlb[0x40+0x26].P
printf "tlb[0x27]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x27].L,__debug_mmu.tlb[0x27].P,__debug_mmu.tlb[0x40+0x27].L,__debug_mmu.tlb[0x40+0x27].P
printf "tlb[0x28]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x28].L,__debug_mmu.tlb[0x28].P,__debug_mmu.tlb[0x40+0x28].L,__debug_mmu.tlb[0x40+0x28].P
printf "tlb[0x29]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x29].L,__debug_mmu.tlb[0x29].P,__debug_mmu.tlb[0x40+0x29].L,__debug_mmu.tlb[0x40+0x29].P
printf "tlb[0x2a]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x2a].L,__debug_mmu.tlb[0x2a].P,__debug_mmu.tlb[0x40+0x2a].L,__debug_mmu.tlb[0x40+0x2a].P
printf "tlb[0x2b]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x2b].L,__debug_mmu.tlb[0x2b].P,__debug_mmu.tlb[0x40+0x2b].L,__debug_mmu.tlb[0x40+0x2b].P
printf "tlb[0x2c]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x2c].L,__debug_mmu.tlb[0x2c].P,__debug_mmu.tlb[0x40+0x2c].L,__debug_mmu.tlb[0x40+0x2c].P
printf "tlb[0x2d]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x2d].L,__debug_mmu.tlb[0x2d].P,__debug_mmu.tlb[0x40+0x2d].L,__debug_mmu.tlb[0x40+0x2d].P
printf "tlb[0x2e]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x2e].L,__debug_mmu.tlb[0x2e].P,__debug_mmu.tlb[0x40+0x2e].L,__debug_mmu.tlb[0x40+0x2e].P
printf "tlb[0x2f]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x2f].L,__debug_mmu.tlb[0x2f].P,__debug_mmu.tlb[0x40+0x2f].L,__debug_mmu.tlb[0x40+0x2f].P
printf "tlb[0x30]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x30].L,__debug_mmu.tlb[0x30].P,__debug_mmu.tlb[0x40+0x30].L,__debug_mmu.tlb[0x40+0x30].P
printf "tlb[0x31]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x31].L,__debug_mmu.tlb[0x31].P,__debug_mmu.tlb[0x40+0x31].L,__debug_mmu.tlb[0x40+0x31].P
printf "tlb[0x32]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x32].L,__debug_mmu.tlb[0x32].P,__debug_mmu.tlb[0x40+0x32].L,__debug_mmu.tlb[0x40+0x32].P
printf "tlb[0x33]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x33].L,__debug_mmu.tlb[0x33].P,__debug_mmu.tlb[0x40+0x33].L,__debug_mmu.tlb[0x40+0x33].P
printf "tlb[0x34]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x34].L,__debug_mmu.tlb[0x34].P,__debug_mmu.tlb[0x40+0x34].L,__debug_mmu.tlb[0x40+0x34].P
printf "tlb[0x35]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x35].L,__debug_mmu.tlb[0x35].P,__debug_mmu.tlb[0x40+0x35].L,__debug_mmu.tlb[0x40+0x35].P
printf "tlb[0x36]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x36].L,__debug_mmu.tlb[0x36].P,__debug_mmu.tlb[0x40+0x36].L,__debug_mmu.tlb[0x40+0x36].P
printf "tlb[0x37]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x37].L,__debug_mmu.tlb[0x37].P,__debug_mmu.tlb[0x40+0x37].L,__debug_mmu.tlb[0x40+0x37].P
printf "tlb[0x38]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x38].L,__debug_mmu.tlb[0x38].P,__debug_mmu.tlb[0x40+0x38].L,__debug_mmu.tlb[0x40+0x38].P
printf "tlb[0x39]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x39].L,__debug_mmu.tlb[0x39].P,__debug_mmu.tlb[0x40+0x39].L,__debug_mmu.tlb[0x40+0x39].P
printf "tlb[0x3a]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x3a].L,__debug_mmu.tlb[0x3a].P,__debug_mmu.tlb[0x40+0x3a].L,__debug_mmu.tlb[0x40+0x3a].P
printf "tlb[0x3b]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x3b].L,__debug_mmu.tlb[0x3b].P,__debug_mmu.tlb[0x40+0x3b].L,__debug_mmu.tlb[0x40+0x3b].P
printf "tlb[0x3c]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x3c].L,__debug_mmu.tlb[0x3c].P,__debug_mmu.tlb[0x40+0x3c].L,__debug_mmu.tlb[0x40+0x3c].P
printf "tlb[0x3d]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x3d].L,__debug_mmu.tlb[0x3d].P,__debug_mmu.tlb[0x40+0x3d].L,__debug_mmu.tlb[0x40+0x3d].P
printf "tlb[0x3e]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x3e].L,__debug_mmu.tlb[0x3e].P,__debug_mmu.tlb[0x40+0x3e].L,__debug_mmu.tlb[0x40+0x3e].P
printf "tlb[0x3f]: %08lx %08lx %08lx %08lx\n",__debug_mmu.tlb[0x3f].L,__debug_mmu.tlb[0x3f].P,__debug_mmu.tlb[0x40+0x3f].L,__debug_mmu.tlb[0x40+0x3f].P
end
define _pgd
p (pgd_t[0x40])*(pgd_t*)(__debug_mmu.damr[0x3].L)
end
define _ptd_i
p (pte_t[0x1000])*(pte_t*)(__debug_mmu.damr[0x4].L)
end
define _ptd_d
p (pte_t[0x1000])*(pte_t*)(__debug_mmu.damr[0x5].L)
end
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====================
DEBUGGING FR-V LINUX
====================
The kernel contains a GDB stub that talks GDB remote protocol across a serial
port. This permits GDB to single step through the kernel, set breakpoints and
trap exceptions that happen in kernel space and interrupt execution. It also
permits the NMI interrupt button or serial port events to jump the kernel into
the debugger.
On the CPUs that have on-chip UARTs (FR400, FR403, FR405, FR555), the
GDB stub hijacks a serial port for its own purposes, and makes it
generate level 15 interrupts (NMI). The kernel proper cannot see the serial
port in question under these conditions.
On the MB93091-VDK CPU boards, the GDB stub uses UART1, which would otherwise
be /dev/ttyS1. On the MB93093-PDK, the GDB stub uses UART0. Therefore, on the
PDK there is no externally accessible serial port and the serial port to
which the touch screen is attached becomes /dev/ttyS0.
Note that the GDB stub runs entirely within CPU debug mode, and so should not
incur any exceptions or interrupts whilst it is active. In particular, note
that the clock will lose time since it is implemented in software.
==================
KERNEL PREPARATION
==================
Firstly, a debuggable kernel must be built. To do this, unpack the kernel tree
and copy the configuration that you wish to use to .config. Then reconfigure
the following things on the "Kernel Hacking" tab:
(*) "Include debugging information"
Set this to "Y". This causes all C and Assembly files to be compiled
to include debugging information.
(*) "In-kernel GDB stub"
Set this to "Y". This causes the GDB stub to be compiled into the
kernel.
(*) "Immediate activation"
Set this to "Y" if you want the GDB stub to activate as soon as possible
and wait for GDB to connect. This allows you to start tracing right from
the beginning of start_kernel() in init/main.c.
(*) "Console through GDB stub"
Set this to "Y" if you wish to be able to use "console=gdb0" on the
command line. That tells the kernel to pass system console messages to
GDB (which then prints them on its standard output). This is useful when
debugging the serial drivers that'd otherwise be used to pass console
messages to the outside world.
Then build as usual, download to the board and execute. Note that if
"Immediate activation" was selected, then the kernel will wait for GDB to
attach. If not, then the kernel will boot immediately and GDB will have to
interrupt it or wait for an exception to occur before doing anything with
the kernel.
=========================
KERNEL DEBUGGING WITH GDB
=========================
Set the serial port on the computer that's going to run GDB to the appropriate
baud rate. Assuming the board's debug port is connected to ttyS0/COM1 on the
computer doing the debugging:
stty -F /dev/ttyS0 115200
Then start GDB in the base of the kernel tree:
frv-uclinux-gdb linux [uClinux]
Or:
frv-uclinux-gdb vmlinux [MMU linux]
When the prompt appears:
GNU gdb frv-031024
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "--host=i686-pc-linux-gnu --target=frv-uclinux"...
(gdb)
Attach to the board like this:
(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
start_kernel () at init/main.c:395
(gdb)
This should show the appropriate lines from the source too. The kernel can
then be debugged almost as if it's any other program.
===============================
INTERRUPTING THE RUNNING KERNEL
===============================
The kernel can be interrupted whilst it is running, causing a jump back to the
GDB stub and the debugger:
(*) Pressing Ctrl-C in GDB. This will cause GDB to try and interrupt the
kernel by sending an RS232 BREAK over the serial line to the GDB
stub. This will (mostly) immediately interrupt the kernel and return it
to the debugger.
(*) Pressing the NMI button on the board will also cause a jump into the
debugger.
(*) Setting a software breakpoint. This sets a break instruction at the
desired location which the GDB stub then traps the exception for.
(*) Setting a hardware breakpoint. The GDB stub is capable of using the IBAR
and DBAR registers to assist debugging.
Furthermore, the GDB stub will intercept a number of exceptions automatically
if they are caused by kernel execution. It will also intercept BUG() macro
invocation.
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=================================
INTERNAL KERNEL ABI FOR FR-V ARCH
=================================
The internal FRV kernel ABI is not quite the same as the userspace ABI. A
number of the registers are used for special purposed, and the ABI is not
consistent between modules vs core, and MMU vs no-MMU.
This partly stems from the fact that FRV CPUs do not have a separate
supervisor stack pointer, and most of them do not have any scratch
registers, thus requiring at least one general purpose register to be
clobbered in such an event. Also, within the kernel core, it is possible to
simply jump or call directly between functions using a relative offset.
This cannot be extended to modules for the displacement is likely to be too
far. Thus in modules the address of a function to call must be calculated
in a register and then used, requiring two extra instructions.
This document has the following sections:
(*) System call register ABI
(*) CPU operating modes
(*) Internal kernel-mode register ABI
(*) Internal debug-mode register ABI
(*) Virtual interrupt handling
========================
SYSTEM CALL REGISTER ABI
========================
When a system call is made, the following registers are effective:
REGISTERS CALL RETURN
=============== ======================= =======================
GR7 System call number Preserved
GR8 Syscall arg #1 Return value
GR9-GR13 Syscall arg #2-6 Preserved
===================
CPU OPERATING MODES
===================
The FR-V CPU has three basic operating modes. In order of increasing
capability:
(1) User mode.
Basic userspace running mode.
(2) Kernel mode.
Normal kernel mode. There are many additional control registers
available that may be accessed in this mode, in addition to all the
stuff available to user mode. This has two submodes:
(a) Exceptions enabled (PSR.T == 1).
Exceptions will invoke the appropriate normal kernel mode
handler. On entry to the handler, the PSR.T bit will be cleared.
(b) Exceptions disabled (PSR.T == 0).
No exceptions or interrupts may happen. Any mandatory exceptions
will cause the CPU to halt unless the CPU is told to jump into
debug mode instead.
(3) Debug mode.
No exceptions may happen in this mode. Memory protection and
management exceptions will be flagged for later consideration, but
the exception handler won't be invoked. Debugging traps such as
hardware breakpoints and watchpoints will be ignored. This mode is
entered only by debugging events obtained from the other two modes.
All kernel mode registers may be accessed, plus a few extra debugging
specific registers.
=================================
INTERNAL KERNEL-MODE REGISTER ABI
=================================
There are a number of permanent register assignments that are set up by
entry.S in the exception prologue. Note that there is a complete set of
exception prologues for each of user->kernel transition and kernel->kernel
transition. There are also user->debug and kernel->debug mode transition
prologues.
REGISTER FLAVOUR USE
=============== ======= ==============================================
GR1 Supervisor stack pointer
GR15 Current thread info pointer
GR16 GP-Rel base register for small data
GR28 Current exception frame pointer (__frame)
GR29 Current task pointer (current)
GR30 Destroyed by kernel mode entry
GR31 NOMMU Destroyed by debug mode entry
GR31 MMU Destroyed by TLB miss kernel mode entry
CCR.ICC2 Virtual interrupt disablement tracking
CCCR.CC3 Cleared by exception prologue
(atomic op emulation)
SCR0 MMU See mmu-layout.txt.
SCR1 MMU See mmu-layout.txt.
SCR2 MMU Save for EAR0 (destroyed by icache insns
in debug mode)
SCR3 MMU Save for GR31 during debug exceptions
DAMR/IAMR NOMMU Fixed memory protection layout.
DAMR/IAMR MMU See mmu-layout.txt.
Certain registers are also used or modified across function calls:
REGISTER CALL RETURN
=============== =============================== ======================
GR0 Fixed Zero -
GR2 Function call frame pointer
GR3 Special Preserved
GR3-GR7 - Clobbered
GR8 Function call arg #1 Return value
(or clobbered)
GR9 Function call arg #2 Return value MSW
(or clobbered)
GR10-GR13 Function call arg #3-#6 Clobbered
GR14 - Clobbered
GR15-GR16 Special Preserved
GR17-GR27 - Preserved
GR28-GR31 Special Only accessed
explicitly
LR Return address after CALL Clobbered
CCR/CCCR - Mostly Clobbered
================================
INTERNAL DEBUG-MODE REGISTER ABI
================================
This is the same as the kernel-mode register ABI for functions calls. The
difference is that in debug-mode there's a different stack and a different
exception frame. Almost all the global registers from kernel-mode
(including the stack pointer) may be changed.
REGISTER FLAVOUR USE
=============== ======= ==============================================
GR1 Debug stack pointer
GR16 GP-Rel base register for small data
GR31 Current debug exception frame pointer
(__debug_frame)
SCR3 MMU Saved value of GR31
Note that debug mode is able to interfere with the kernel's emulated atomic
ops, so it must be exceedingly careful not to do any that would interact
with the main kernel in this regard. Hence the debug mode code (gdbstub) is
almost completely self-contained. The only external code used is the
sprintf family of functions.
Furthermore, break.S is so complicated because single-step mode does not
switch off on entry to an exception. That means unless manually disabled,
single-stepping will blithely go on stepping into things like interrupts.
See gdbstub.txt for more information.
==========================
VIRTUAL INTERRUPT HANDLING
==========================
Because accesses to the PSR is so slow, and to disable interrupts we have
to access it twice (once to read and once to write), we don't actually
disable interrupts at all if we don't have to. What we do instead is use
the ICC2 condition code flags to note virtual disablement, such that if we
then do take an interrupt, we note the flag, really disable interrupts, set
another flag and resume execution at the point the interrupt happened.
Setting condition flags as a side effect of an arithmetic or logical
instruction is really fast. This use of the ICC2 only occurs within the
kernel - it does not affect userspace.
The flags we use are:
(*) CCR.ICC2.Z [Zero flag]
Set to virtually disable interrupts, clear when interrupts are
virtually enabled. Can be modified by logical instructions without
affecting the Carry flag.
(*) CCR.ICC2.C [Carry flag]
Clear to indicate hardware interrupts are really disabled, set otherwise.
What happens is this:
(1) Normal kernel-mode operation.
ICC2.Z is 0, ICC2.C is 1.
(2) An interrupt occurs. The exception prologue examines ICC2.Z and
determines that nothing needs doing. This is done simply with an
unlikely BEQ instruction.
(3) The interrupts are disabled (local_irq_disable)
ICC2.Z is set to 1.
(4) If interrupts were then re-enabled (local_irq_enable):
ICC2.Z would be set to 0.
A TIHI #2 instruction (trap #2 if condition HI - Z==0 && C==0) would
be used to trap if interrupts were now virtually enabled, but
physically disabled - which they're not, so the trap isn't taken. The
kernel would then be back to state (1).
(5) An interrupt occurs. The exception prologue examines ICC2.Z and
determines that the interrupt shouldn't actually have happened. It
jumps aside, and there disabled interrupts by setting PSR.PIL to 14
and then it clears ICC2.C.
(6) If interrupts were then saved and disabled again (local_irq_save):
ICC2.Z would be shifted into the save variable and masked off
(giving a 1).
ICC2.Z would then be set to 1 (thus unchanged), and ICC2.C would be
unaffected (ie: 0).
(7) If interrupts were then restored from state (6) (local_irq_restore):
ICC2.Z would be set to indicate the result of XOR'ing the saved
value (ie: 1) with 1, which gives a result of 0 - thus leaving
ICC2.Z set.
ICC2.C would remain unaffected (ie: 0).
A TIHI #2 instruction would be used to again assay the current state,
but this would do nothing as Z==1.
(8) If interrupts were then enabled (local_irq_enable):
ICC2.Z would be cleared. ICC2.C would be left unaffected. Both
flags would now be 0.
A TIHI #2 instruction again issued to assay the current state would
then trap as both Z==0 [interrupts virtually enabled] and C==0
[interrupts really disabled] would then be true.
(9) The trap #2 handler would simply enable hardware interrupts
(set PSR.PIL to 0), set ICC2.C to 1 and return.
(10) Immediately upon returning, the pending interrupt would be taken.
(11) The interrupt handler would take the path of actually processing the
interrupt (ICC2.Z is clear, BEQ fails as per step (2)).
(12) The interrupt handler would then set ICC2.C to 1 since hardware
interrupts are definitely enabled - or else the kernel wouldn't be here.
(13) On return from the interrupt handler, things would be back to state (1).
This trap (#2) is only available in kernel mode. In user mode it will
result in SIGILL.
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=================================
FR451 MMU LINUX MEMORY MANAGEMENT
=================================
============
MMU HARDWARE
============
FR451 MMU Linux puts the MMU into EDAT mode whilst running. This means that it uses both the SAT
registers and the DAT TLB to perform address translation.
There are 8 IAMLR/IAMPR register pairs and 16 DAMLR/DAMPR register pairs for SAT mode.
In DAT mode, there is also a TLB organised in cache format as 64 lines x 2 ways. Each line spans a
16KB range of addresses, but can match a larger region.
===========================
MEMORY MANAGEMENT REGISTERS
===========================
Certain control registers are used by the kernel memory management routines:
REGISTERS USAGE
====================== ==================================================
IAMR0, DAMR0 Kernel image and data mappings
IAMR1, DAMR1 First-chance TLB lookup mapping
DAMR2 Page attachment for cache flush by page
DAMR3 Current PGD mapping
SCR0, DAMR4 Instruction TLB PGE/PTD cache
SCR1, DAMR5 Data TLB PGE/PTD cache
DAMR6-10 kmap_atomic() mappings
DAMR11 I/O mapping
CXNR mm_struct context ID
TTBR Page directory (PGD) pointer (physical address)
=====================
GENERAL MEMORY LAYOUT
=====================
The physical memory layout is as follows:
PHYSICAL ADDRESS CONTROLLER DEVICE
=================== ============== =======================================
00000000 - BFFFFFFF SDRAM SDRAM area
E0000000 - EFFFFFFF L-BUS CS2# VDK SLBUS/PCI window
F0000000 - F0FFFFFF L-BUS CS5# MB93493 CSC area (DAV daughter board)
F1000000 - F1FFFFFF L-BUS CS7# (CB70 CPU-card PCMCIA port I/O space)
FC000000 - FC0FFFFF L-BUS CS1# VDK MB86943 config space
FC100000 - FC1FFFFF L-BUS CS6# DM9000 NIC I/O space
FC200000 - FC2FFFFF L-BUS CS3# MB93493 CSR area (DAV daughter board)
FD000000 - FDFFFFFF L-BUS CS4# (CB70 CPU-card extra flash space)
FE000000 - FEFFFFFF Internal CPU peripherals
FF000000 - FF1FFFFF L-BUS CS0# Flash 1
FF200000 - FF3FFFFF L-BUS CS0# Flash 2
FFC00000 - FFC0001F L-BUS CS0# FPGA
The virtual memory layout is:
VIRTUAL ADDRESS PHYSICAL TRANSLATOR FLAGS SIZE OCCUPATION
================= ======== ============== ======= ======= ===================================
00004000-BFFFFFFF various TLB,xAMR1 D-N-??V 3GB Userspace
C0000000-CFFFFFFF 00000000 xAMPR0 -L-S--V 256MB Kernel image and data
D0000000-D7FFFFFF various TLB,xAMR1 D-NS??V 128MB vmalloc area
D8000000-DBFFFFFF various TLB,xAMR1 D-NS??V 64MB kmap() area
DC000000-DCFFFFFF various TLB 1MB Secondary kmap_atomic() frame
DD000000-DD27FFFF various DAMR 160KB Primary kmap_atomic() frame
DD040000 DAMR2/IAMR2 -L-S--V page Page cache flush attachment point
DD080000 DAMR3 -L-SC-V page Page Directory (PGD)
DD0C0000 DAMR4 -L-SC-V page Cached insn TLB Page Table lookup
DD100000 DAMR5 -L-SC-V page Cached data TLB Page Table lookup
DD140000 DAMR6 -L-S--V page kmap_atomic(KM_BOUNCE_READ)
DD180000 DAMR7 -L-S--V page kmap_atomic(KM_SKB_SUNRPC_DATA)
DD1C0000 DAMR8 -L-S--V page kmap_atomic(KM_SKB_DATA_SOFTIRQ)
DD200000 DAMR9 -L-S--V page kmap_atomic(KM_USER0)
DD240000 DAMR10 -L-S--V page kmap_atomic(KM_USER1)
E0000000-FFFFFFFF E0000000 DAMR11 -L-SC-V 512MB I/O region
IAMPR1 and DAMPR1 are used as an extension to the TLB.
====================
KMAP AND KMAP_ATOMIC
====================
To access pages in the page cache (which may not be directly accessible if highmem is available),
the kernel calls kmap(), does the access and then calls kunmap(); or it calls kmap_atomic(), does
the access and then calls kunmap_atomic().
kmap() creates an attachment between an arbitrary inaccessible page and a range of virtual
addresses by installing a PTE in a special page table. The kernel can then access this page as it
wills. When it's finished, the kernel calls kunmap() to clear the PTE.
kmap_atomic() does something slightly different. In the interests of speed, it chooses one of two
strategies:
(1) If possible, kmap_atomic() attaches the requested page to one of DAMPR5 through DAMPR10
register pairs; and the matching kunmap_atomic() clears the DAMPR. This makes high memory
support really fast as there's no need to flush the TLB or modify the page tables. The DAMLR
registers being used for this are preset during boot and don't change over the lifetime of the
process. There's a direct mapping between the first few kmap_atomic() types, DAMR number and
virtual address slot.
However, there are more kmap_atomic() types defined than there are DAMR registers available,
so we fall back to:
(2) kmap_atomic() uses a slot in the secondary frame (determined by the type parameter), and then
locks an entry in the TLB to translate that slot to the specified page. The number of slots is
obviously limited, and their positions are controlled such that each slot is matched by a
different line in the TLB. kunmap() ejects the entry from the TLB.
Note that the first three kmap atomic types are really just declared as placeholders. The DAMPR
registers involved are actually modified directly.
Also note that kmap() itself may sleep, kmap_atomic() may never sleep and both always succeed;
furthermore, a driver using kmap() may sleep before calling kunmap(), but may not sleep before
calling kunmap_atomic() if it had previously called kmap_atomic().
===============================
USING MORE THAN 256MB OF MEMORY
===============================
The kernel cannot access more than 256MB of memory directly. The physical layout, however, permits
up to 3GB of SDRAM (possibly 3.25GB) to be made available. By using CONFIG_HIGHMEM, the kernel can
allow userspace (by way of page tables) and itself (by way of kmap) to deal with the memory
allocation.
External devices can, of course, still DMA to and from all of the SDRAM, even if the kernel can't
see it directly. The kernel translates page references into real addresses for communicating to the
devices.
===================
PAGE TABLE TOPOLOGY
===================
The page tables are arranged in 2-layer format. There is a middle layer (PMD) that would be used in
3-layer format tables but that is folded into the top layer (PGD) and so consumes no extra memory
or processing power.
+------+ PGD PMD
| TTBR |--->+-------------------+
+------+ | | : STE |
| PGE0 | PME0 : STE |
| | : STE |
+-------------------+ Page Table
| | : STE -------------->+--------+ +0x0000
| PGE1 | PME0 : STE -----------+ | PTE0 |
| | : STE -------+ | +--------+
+-------------------+ | | | PTE63 |
| | : STE | | +-->+--------+ +0x0100
| PGE2 | PME0 : STE | | | PTE64 |
| | : STE | | +--------+
+-------------------+ | | PTE127 |
| | : STE | +------>+--------+ +0x0200
| PGE3 | PME0 : STE | | PTE128 |
| | : STE | +--------+
+-------------------+ | PTE191 |
+--------+ +0x0300
Each Page Directory (PGD) is 16KB (page size) in size and is divided into 64 entries (PGEs). Each
PGE contains one Page Mid Directory (PMD).
Each PMD is 256 bytes in size and contains a single entry (PME). Each PME holds 64 FR451 MMU
segment table entries of 4 bytes apiece. Each PME "points to" a page table. In practice, each STE
points to a subset of the page table, the first to PT+0x0000, the second to PT+0x0100, the third to
PT+0x200, and so on.
Each PGE and PME covers 64MB of the total virtual address space.
Each Page Table (PTD) is 16KB (page size) in size, and is divided into 4096 entries (PTEs). Each
entry can point to one 16KB page. In practice, each Linux page table is subdivided into 64 FR451
MMU page tables. But they are all grouped together to make management easier, in particular rmap
support is then trivial.
Grouping page tables in this fashion makes PGE caching in SCR0/SCR1 more efficient because the
coverage of the cached item is greater.
Page tables for the vmalloc area are allocated at boot time and shared between all mm_structs.
=================
USER SPACE LAYOUT
=================
For MMU capable Linux, the regions userspace code are allowed to access are kept entirely separate
from those dedicated to the kernel:
VIRTUAL ADDRESS SIZE PURPOSE
================= ===== ===================================
00000000-00003fff 4KB NULL pointer access trap
00004000-01ffffff ~32MB lower mmap space (grows up)
02000000-021fffff 2MB Stack space (grows down from top)
02200000-nnnnnnnn Executable mapping
nnnnnnnn- brk space (grows up)
-bfffffff upper mmap space (grows down)
This is so arranged so as to make best use of the 16KB page tables and the way in which PGEs/PMEs
are cached by the TLB handler. The lower mmap space is filled first, and then the upper mmap space
is filled.
===============================
GDB-STUB MMU DEBUGGING SERVICES
===============================
The gdb-stub included in this kernel provides a number of services to aid in the debugging of MMU
related kernel services:
(*) Every time the kernel stops, certain state information is dumped into __debug_mmu. This
variable is defined in arch/frv/kernel/gdb-stub.c. Note that the gdbinit file in this
directory has some useful macros for dealing with this.
(*) __debug_mmu.tlb[]
This receives the current TLB contents. This can be viewed with the _tlb GDB macro:
(gdb) _tlb
tlb[0x00]: 01000005 00718203 01000002 00718203
tlb[0x01]: 01004002 006d4201 01004005 006d4203
tlb[0x02]: 01008002 006d0201 01008006 00004200
tlb[0x03]: 0100c006 007f4202 0100c002 0064c202
tlb[0x04]: 01110005 00774201 01110002 00774201
tlb[0x05]: 01114005 00770201 01114002 00770201
tlb[0x06]: 01118002 0076c201 01118005 0076c201
...
tlb[0x3d]: 010f4002 00790200 001f4002 0054ca02
tlb[0x3e]: 010f8005 0078c201 010f8002 0078c201
tlb[0x3f]: 001fc002 0056ca01 001fc005 00538a01
(*) __debug_mmu.iamr[]
(*) __debug_mmu.damr[]
These receive the current IAMR and DAMR contents. These can be viewed with the _amr
GDB macro:
(gdb) _amr
AMRx DAMR IAMR
==== ===================== =====================
amr0 : L:c0000000 P:00000cb9 : L:c0000000 P:000004b9
amr1 : L:01070005 P:006f9203 : L:0102c005 P:006a1201
amr2 : L:d8d00000 P:00000000 : L:d8d00000 P:00000000
amr3 : L:d8d04000 P:00534c0d : L:00000000 P:00000000
amr4 : L:d8d08000 P:00554c0d : L:00000000 P:00000000
amr5 : L:d8d0c000 P:00554c0d : L:00000000 P:00000000
amr6 : L:d8d10000 P:00000000 : L:00000000 P:00000000
amr7 : L:d8d14000 P:00000000 : L:00000000 P:00000000
amr8 : L:d8d18000 P:00000000
amr9 : L:d8d1c000 P:00000000
amr10: L:d8d20000 P:00000000
amr11: L:e0000000 P:e0000ccd
(*) The current task's page directory is bound to DAMR3.
This can be viewed with the _pgd GDB macro:
(gdb) _pgd
$3 = {{pge = {{ste = {0x554001, 0x554101, 0x554201, 0x554301, 0x554401,
0x554501, 0x554601, 0x554701, 0x554801, 0x554901, 0x554a01,
0x554b01, 0x554c01, 0x554d01, 0x554e01, 0x554f01, 0x555001,
0x555101, 0x555201, 0x555301, 0x555401, 0x555501, 0x555601,
0x555701, 0x555801, 0x555901, 0x555a01, 0x555b01, 0x555c01,
0x555d01, 0x555e01, 0x555f01, 0x556001, 0x556101, 0x556201,
0x556301, 0x556401, 0x556501, 0x556601, 0x556701, 0x556801,
0x556901, 0x556a01, 0x556b01, 0x556c01, 0x556d01, 0x556e01,
0x556f01, 0x557001, 0x557101, 0x557201, 0x557301, 0x557401,
0x557501, 0x557601, 0x557701, 0x557801, 0x557901, 0x557a01,
0x557b01, 0x557c01, 0x557d01, 0x557e01, 0x557f01}}}}, {pge = {{
ste = {0x0 <repeats 64 times>}}}} <repeats 51 times>, {pge = {{ste = {
0x248001, 0x248101, 0x248201, 0x248301, 0x248401, 0x248501,
0x248601, 0x248701, 0x248801, 0x248901, 0x248a01, 0x248b01,
0x248c01, 0x248d01, 0x248e01, 0x248f01, 0x249001, 0x249101,
0x249201, 0x249301, 0x249401, 0x249501, 0x249601, 0x249701,
0x249801, 0x249901, 0x249a01, 0x249b01, 0x249c01, 0x249d01,
0x249e01, 0x249f01, 0x24a001, 0x24a101, 0x24a201, 0x24a301,
0x24a401, 0x24a501, 0x24a601, 0x24a701, 0x24a801, 0x24a901,
0x24aa01, 0x24ab01, 0x24ac01, 0x24ad01, 0x24ae01, 0x24af01,
0x24b001, 0x24b101, 0x24b201, 0x24b301, 0x24b401, 0x24b501,
0x24b601, 0x24b701, 0x24b801, 0x24b901, 0x24ba01, 0x24bb01,
0x24bc01, 0x24bd01, 0x24be01, 0x24bf01}}}}, {pge = {{ste = {
0x0 <repeats 64 times>}}}} <repeats 11 times>}
(*) The PTD last used by the instruction TLB miss handler is attached to DAMR4.
(*) The PTD last used by the data TLB miss handler is attached to DAMR5.
These can be viewed with the _ptd_i and _ptd_d GDB macros:
(gdb) _ptd_d
$5 = {{pte = 0x0} <repeats 127 times>, {pte = 0x539b01}, {
pte = 0x0} <repeats 896 times>, {pte = 0x719303}, {pte = 0x6d5303}, {
pte = 0x0}, {pte = 0x0}, {pte = 0x0}, {pte = 0x0}, {pte = 0x0}, {
pte = 0x0}, {pte = 0x0}, {pte = 0x0}, {pte = 0x0}, {pte = 0x6a1303}, {
pte = 0x0} <repeats 12 times>, {pte = 0x709303}, {pte = 0x0}, {pte = 0x0},
{pte = 0x6fd303}, {pte = 0x6f9303}, {pte = 0x6f5303}, {pte = 0x0}, {
pte = 0x6ed303}, {pte = 0x531b01}, {pte = 0x50db01}, {
pte = 0x0} <repeats 13 times>, {pte = 0x5303}, {pte = 0x7f5303}, {
pte = 0x509b01}, {pte = 0x505b01}, {pte = 0x7c9303}, {pte = 0x7b9303}, {
pte = 0x7b5303}, {pte = 0x7b1303}, {pte = 0x7ad303}, {pte = 0x0}, {
pte = 0x0}, {pte = 0x7a1303}, {pte = 0x0}, {pte = 0x795303}, {pte = 0x0}, {
pte = 0x78d303}, {pte = 0x0}, {pte = 0x0}, {pte = 0x0}, {pte = 0x0}, {
pte = 0x0}, {pte = 0x775303}, {pte = 0x771303}, {pte = 0x76d303}, {
pte = 0x0}, {pte = 0x765303}, {pte = 0x7c5303}, {pte = 0x501b01}, {
pte = 0x4f1b01}, {pte = 0x4edb01}, {pte = 0x0}, {pte = 0x4f9b01}, {
pte = 0x4fdb01}, {pte = 0x0} <repeats 2992 times>}
Documentation/gpu/drivers.rst 0 → 100644
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========================
GPU Driver Documentation
========================
.. toctree::
i915
meson
pl111
tegra
tinydrm
tve200
vc4
bridge/dw-hdmi
.. only:: subproject and html
Indices
=======
* :ref:`genindex`
Documentation/gpu/drm-kms.rst
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...@@ -286,6 +286,9 @@ Atomic Mode Setting Function Reference ...@@ -286,6 +286,9 @@ Atomic Mode Setting Function Reference
.. kernel-doc:: drivers/gpu/drm/drm_atomic.c .. kernel-doc:: drivers/gpu/drm/drm_atomic.c
:export: :export:
.. kernel-doc:: drivers/gpu/drm/drm_atomic.c
:internal:
CRTC Abstraction CRTC Abstraction
================ ================
...@@ -547,8 +550,9 @@ Explicit Fencing Properties ...@@ -547,8 +550,9 @@ Explicit Fencing Properties
Existing KMS Properties Existing KMS Properties
----------------------- -----------------------
The following table gives description of drm properties exposed by The following table gives description of drm properties exposed by various
various modules/drivers. modules/drivers. Because this table is very unwieldy, do not add any new
properties here. Instead document them in a section above.
.. csv-table:: .. csv-table::
:header-rows: 1 :header-rows: 1
......
Documentation/gpu/index.rst
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drm-kms drm-kms
drm-kms-helpers drm-kms-helpers
drm-uapi drm-uapi
i915 drivers
meson
pl111
tegra
tinydrm
tve200
vc4
vga-switcheroo vga-switcheroo
vgaarbiter vgaarbiter
bridge/dw-hdmi
todo todo
.. only:: subproject and html .. only:: subproject and html
......
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