Pci debug - Revision history

FabienM: /* Links */

2021-04-21T14:23:47Z

Links

← Older revision		Revision as of 16:23, 21 April 2021
Line 81:		Line 81:
	= Links =		= Links =

	This tool come from an altera [http://www.alteraforum.com/forum/showthread.php?t=35678 forum post], and the archive code can be found [~~http~~://~~www~~.~~ovro.caltech.edu~~/~~%7Edwh~~/~~correlator/pdf/altera_pcie.zip~~ here].		This tool come from an altera [http://www.alteraforum.com/forum/showthread.php?t=35678 forum post], and the archive code can be found [https://github.com/Martoni/pcie_debug here].

FabienM: /* Buildroot configuration */

2015-08-27T06:49:35Z

Buildroot configuration

← Older revision		Revision as of 08:49, 27 August 2015
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	== Buildroot configuration ==		== Buildroot configuration ==
	* Should be done by default on [[~~APF6~~]]		* Should be done by default on [[APF6_SP]]
	* Select pci_debug:		* Select pci_debug:
	<pre class="config">		<pre class="config">

WikiSysop: /* Buildroot configuration */

2015-03-17T10:41:29Z

Buildroot configuration

← Older revision		Revision as of 12:41, 17 March 2015
Line 6:		Line 6:
	'''pci_debug''' is a useful tool meant to access PCIe BARx memory from userspace.		'''pci_debug''' is a useful tool meant to access PCIe BARx memory from userspace.

	= Buildroot configuration =		== Buildroot configuration ==
			* Should be done by default on [[APF6]]
	* ~~Readline is required to install~~ pci_debug :		* Select pci_debug:
	<pre class="config">		<pre class="config">
	Target packages --->		Target packages --->
	~~Libraries~~ --->		Hardware handling --->
	~~Text and terminal handling --->~~		[*] pcidebug
	[*] ~~readline~~
	</pre>		</pre>

	* ~~Select pci_debug in armadeus tools~~ :		* then rebuild your BSP:
	<pre class="~~config~~">		<pre class="host">
	~~Target packages --->~~		$ make
	~~Armadeus specific tools/utilities --->~~
	~~[*] pcidebug~~
	</pre>		</pre>

	* then build your bsp with make.

	= Using pci_debug =		= Using pci_debug =

WikiSysop: /* Using pci_debug */

2015-03-17T10:34:33Z

Using pci_debug

← Older revision		Revision as of 12:34, 17 March 2015
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	= Using pci_debug =		= Using pci_debug =

	* First find your ~~pci~~ device name with lspci :		* First find your PCI device name with lspci :
	<pre class="apf">		<pre class="apf">
	# lspci		# lspci
Line 33:		Line 33:
	01:00.0 Unclassified device [0013]: Altera Corporation Device e001 (rev 01)		01:00.0 Unclassified device [0013]: Altera Corporation Device e001 (rev 01)
	</pre>		</pre>
	For example here, we want to access ~~altera pci~~ device, then name is : '''01:00.0'''		For example here, we want to access Altera PCI device, then name is : '''01:00.0'''

	* Launch pci_debug with the BAR number in option (-b) :		* Launch pci_debug with the BAR number in option (-b) :
Line 83:		Line 83:
	PCI>		PCI>
	</pre>		</pre>


	= Links =		= Links =

	This tool come from an altera [http://www.alteraforum.com/forum/showthread.php?t=35678 forum post], and the archive code can be found [http://www.ovro.caltech.edu/%7Edwh/correlator/pdf/altera_pcie.zip here].		This tool come from an altera [http://www.alteraforum.com/forum/showthread.php?t=35678 forum post], and the archive code can be found [http://www.ovro.caltech.edu/%7Edwh/correlator/pdf/altera_pcie.zip here].

WikiSysop: /* Introduction */

2015-03-17T10:33:24Z

Introduction

← Older revision		Revision as of 12:33, 17 March 2015
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	= Introduction =		= Introduction =

	'''pci_debug''' is a ~~usefull binary used~~ to access PCIe BARx memory ~~in userland~~.		'''pci_debug''' is a useful tool meant to access PCIe BARx memory from userspace.

	= Buildroot configuration =		= Buildroot configuration =

FabienM: /* Links */

2015-02-04T16:57:20Z

Links

← Older revision		Revision as of 18:57, 4 February 2015
Line 86:		Line 86:

	= Links =		= Links =

			This tool come from an altera [http://www.alteraforum.com/forum/showthread.php?t=35678 forum post], and the archive code can be found [http://www.ovro.caltech.edu/%7Edwh/correlator/pdf/altera_pcie.zip here].

FabienM: New page: Category: PCIe Category: APF6 = Introduction = '''pci_debug''' is a usefull binary used to access PCIe BARx memory in userland. = Buildroot configuration = * Readline is requir...

2015-02-04T16:56:02Z

New page: Category: PCIe Category: APF6 = Introduction = '''pci_debug''' is a usefull binary used to access PCIe BARx memory in userland. = Buildroot configuration = * Readline is requir...

New page

[[Category: PCIe]]
[[Category: APF6]]

= Introduction =

'''pci_debug''' is a usefull binary used to access PCIe BARx memory in userland.

= Buildroot configuration =

* Readline is required to install pci_debug :
<pre class="config">
Target packages --->
Libraries --->
Text and terminal handling --->
[*] readline
</pre>

* Select pci_debug in armadeus tools :
<pre class="config">
Target packages --->
Armadeus specific tools/utilities --->
[*] pcidebug
</pre>

* then build your bsp with make.

= Using pci_debug =

* First find your pci device name with lspci :
<pre class="apf">
# lspci
00:00.0 PCI bridge: Device 16c3:abcd (rev 01)
01:00.0 Unclassified device [0013]: Altera Corporation Device e001 (rev 01)
</pre>
For example here, we want to access altera pci device, then name is : '''01:00.0'''

* Launch pci_debug with the BAR number in option (-b) :
<pre class="apf">
# pci_debug -s 01:00.0 -b0
# ./pci_debug -s 01:00.0 -b0

PCI debug
---------

- accessing BAR0
- region size is 4194304-bytes
- offset into region is 0-bytes

? Help
d[width] addr len Display memory starting from addr
[width]
8 - 8-bit access
16 - 16-bit access
32 - 32-bit access (default)
c[width] addr val Change memory at addr to val
e Print the endian access mode
e[mode] Change the endian access mode
[mode]
b - big-endian (default)
l - little-endian
f[width] addr val len inc Fill memory
addr - start address
val - start value
len - length (in bytes)
inc - increment (defaults to 1)
q Quit

Notes:
1. addr, len, and val are interpreted as hex values
addresses are always byte based

PCI>
</pre>

* You can then access BAR0 memory on '''PCI>''' prompt.
* Reading 0x20 values from address 0 :
<pre class="apf">
PCI> d32 0 20

00000000: 12345678 12345678 12345678 12345678
00000010: 12345678 12345678 12345678 12345678

PCI>
</pre>

= Links =