Kernel Mbox To Pst Crack
Germana Layng
Hi Marco,
Responses to your questions:
(1) I think there is some confusion on the terms. We refer to the term "mailbox" as the name for the IP instance. There are 12 instances on the DRA7x family. Each IP instance has a number (16 on most) of unidirectional hardware fifos. Each Mailbox IP has 4 interrupt outputs, with each interrupt output used by a processor core (called a User, partitioning defined through software, so totally flexible). For example, if you are communicating between ARM and DSP1 and using Mailbox 10 IP instance, you can assign ARM as User 0 and DSP1 and User 1. You could have communications to a DSP2 using User 2, and using different FIFO pairs between all three processors. Please look through the Mailbox chapter in the TRM for additional details.
The three cells are explained well in the binding - first cell is the FIFO number, second cell is index of the interrupt to be used by MPU (from the interrupts property, so this will typically be same between ti,mbox-rx and ti,mbox-tx) and the third cell is the User id (I expect second cell and third cells to typically match value as the interrupts are listed in the same order as the 4 User interrupt outputs). Note that these assignments only define the Rx and Tx from MPU perspective. The exceptions to the typical usage is if you assign multiple User interrupts towards MPU and separate them out between Rx and Tx.
(3).(a) I am not quite sure I understand your question. mbox_request_channel_byname() is designed to be able to request a mailbox channel when your client DTS node has multiple mboxes defined in the "mboxes" property. The name you pass in should match one of the names used in the "mbox-names" property. The other API is by index into your "mboxes" property. If you will only have one mbox channel in your client, you can simply drop the "mbox-names" property and just use mbox_request_channel with index 0.
(3).(b) The mbox_channel is the name used by mailbox core to represent a communication channel registered by mailbox controllers/providers with the mailbox core. Each such channel can be uni-directional (requiring you to request two channels - one for Rx or Tx), or simply a duplex channel (requiring you to request only one channel which includes both Rx and Tx). The OMAP Mailbox channels follow the latter convention, and the driver actually doesn't support defining simplex channels. Your mbox_sms node under mailbox10 defines a duplex channel. The "ti,mbox-rx" and the "ti,mbox-tx" dictate your Rx and Tx FIFOs respectively from Linux-side.
regards
Suman
Note that this title bar implies there are 8 patches (labeled 1 to 8) inside it, and a Patch labeled 0 which serves as the header to the whole patch set. When you try to apply the patch using git -am it is going to complain about that first one, but this is not a problem.
If, like me, you tend to do development work on a system that is not your primary email client, you will want a way to download the patches directly to the target machine. I am going to use wget to fetch a patchset in its mailbox format using gzip compression. There is a link to the gz file at the bottom of the page. Scroll to the section that shows the thread. There is a line that reads:
This is documented as applying on top of next-20221006. This tag as such does not exit on my tree (cloned from Torvalds) but I am going to assume that it will apply on the latest RC. And I am going to test that assumption. Checkout based on the RC7 tag and create a new local branch
The git am command will attempt to apply commits based on each message in the mbox file, as they will all start with [PATCH. While this is what we want for the top level patch, we do not want the responses. Probably the easiest way to deal with them is to try to apply them, let git am fail, and then tell it to skip:
There are a number of websites sharing the same series of patchesI want to apply this series of patches [email protected]/What I would do is to copy past the patch and apply one by one but is that the only way? Is there another way to apply them ?
If you have the Linux source code as a Git repository, you should be able to download the 'mbox' file of the entire list thread (look for "Thread overview: mbox.gz"), then feed it to the git am command which applies all patches as individual Git commits.
To use it, all you need to know is the message-id of one of the patches in the thread you want to grab. Once you have that, you can use the lore.kernel.org archive to grab the whole thread and prepare an mbox file that is ready to be fed to git-am:
On top of that, b4 also introduces support for cryptographic patch attestation, which makes it possible to verify that patches (and their metadata) weren't modified in transit between developers. This is still an experimental feature, but initial tests have been pretty encouraging.
If you would like to submit attestation for a patch or a series of patches, the best time to do that is right after you use git send-email to submit your patches to the list. Simply run the following:
When running b4 am, the tool will automatically check if attestation is available by querying the signatures archive on lore.kernel.org. If it finds the attestation document, it will run gpg --verify on it. All of the following checks must pass before attestation is accepted:
A mailbox is a kernel object that provides enhanced message queuecapabilities that go beyond the capabilities of a message queue object.A mailbox allows threads to send and receive messages of any sizesynchronously or asynchronously.
A mailbox allows threads, but not ISRs, to exchange messages.A thread that sends a message is known as the sending thread,while a thread that receives the message is known as the receiving thread.Each message may be received by only one thread (i.e. point-to-multipoint andbroadcast messaging is not supported).
The life cycle of a message is straightforward. A message is created whenit is given to a mailbox by the sending thread. The message is then ownedby the mailbox until it is given to a receiving thread. The receiving threadmay retrieve the message data when it receives the message from the mailbox,or it may perform data retrieval during a second, subsequent mailbox operation.Only when data retrieval has occurred is the message deleted by the mailbox.
A sending thread can specify the address of the thread to which the messageis sent, or send it to any thread by specifying K_ANY.Likewise, a receiving thread can specify the address of the thread from whichit wishes to receive a message, or it can receive a message from any threadby specifying K_ANY.A message is exchanged only when the requirements of both the sending threadand receiving thread are satisfied; such threads are said to be compatible.
For example, if thread A sends a message to thread B (and only thread B)it will be received by thread B if thread B tries to receive a messagefrom thread A or if thread B tries to receive from any thread.The exchange will not occur if thread B tries to receive a messagefrom thread C. The message can never be received by thread C,even if it tries to receive a message from thread A (or from any thread).
Mailbox messages can be exchanged synchronously or asynchronously.In a synchronous exchange, the sending thread blocks until the messagehas been fully processed by the receiving thread. In an asynchronous exchange,the sending thread does not wait until the message has been receivedby another thread before continuing; this allows the sending thread to doother work (such as gather data that will be used in the next message)before the message is given to a receiving thread and fully processed.The technique used for a given message exchange is determinedby the sending thread.
The synchronous exchange technique provides an implicit form of flow control,preventing a sending thread from generating messages faster than they can beconsumed by receiving threads. The asynchronous exchange technique provides anexplicit form of flow control, which allows a sending thread to determineif a previously sent message still exists before sending a subsequent message.
A 32-bit value that is exchanged by the message sender and receiver,and whose meaning is defined by the application. This exchange isbi-directional, allowing the sender to pass a value to the receiverduring any message exchange, and allowing the receiver to pass a valueto the sender during a synchronous message exchange.
The message data size, in bytes. Set it to zero when sending an emptymessage, or when sending a message buffer with no actual data. Whenreceiving a message, set it to the maximum amount of data desired, or tozero if the message data is not wanted. The mailbox updates this field withthe actual number of data bytes exchanged once the message is received.
Any number of messages may exist simultaneously on a send queue.The messages in the send queue are sorted according to the priorityof the sending thread. Messages of equal priority are sorted so thatthe oldest message can be received first.
A synchronous send operation may block the sending thread indefinitely,even when the thread specifies a maximum waiting period.The waiting period only limits how long the mailbox waitsbefore the message is received by another thread. Once a message is receivedthere is no limit to the time the receiving thread may take to retrievethe message data and unblock the sending thread.
For an asynchronous send operation, the operation always completes immediately.This allows the sending thread to continue processing regardless of whether themessage is given to a receiving thread immediately or added to the send queue.The sending thread may optionally specify a semaphore that the mailbox giveswhen the message is deleted by the mailbox, for example, when the messagehas been received and its data retrieved by a receiving thread.The use of a semaphore allows the sending thread to easily implementa flow control mechanism that ensures that the mailbox holds no more thanan application-specified number of messages from a sending thread(or set of sending threads) at any point in time.
b1e95dc632