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PowerPC-based Linux kernel tour: 2nd station-_ secondary_start (start_here)-bottom

felt that the initialization and Analysis of MMU hardware was extremely bad and I had to worry about it later, I will definitely improve it. Of course, I also hope that the experts can make friends without your advice. Let's take a look at the detailed code of mmu_init_hw (in mm/ppc_mmu_32.c ): Void _ init mmu_init_hw (void) {unsigned int hmask, MB, mb2; unsigned int n_hpteg, lg_n_hpteg;/* defined in hash_low_32.s, fill and clear the hash table */extern unsigned int hash_page_patch_a []; extern

MIPI Display Standard

As mobile interconnection devices become more popular, more and more manufacturers are competing to design the newest and most fashionable products. Low power consumption is always the most concerned thing about handheld devices, which includes the power consumption of the parts they display. According to a survey firm ISUPPLI, Intel's processor for these devices accounts for half of the market. To replace the traditional, outdated RGB parallel bus, Intel used the LVDS and MIPI

LCD process--kernel based on msm8916 porting

Second, porting the LCD in kernel process is roughly the same as porting the LCD in LK. 1. The first thing to do is to write the. dts file to create the arch/arm/boot/dts/qcom/ Dsi-panel-xxx-video.dtsi file File is a node, MDSS_MDP, which has a display node dsi_xxx, many of the values of the nodes are mentioned in the previous section AMP;MDSS_MDP {dsi_xxx:qcom,mdss_dsi_xxx_video {qcom,mdss-dsi-panel-n

2410linux can finally use the File System

174b Control: I/O + Mem + BusMaster + SpecCycle-MemWINV-VGASnoop-ParErr-Step ping-SERR-FastB2B- Status: Cap + 66 Mhz-UDF-FastB2B + ParErr-DEVSEL = fast> TAbort- SERR- Latency: 0 Interrupt: pin A routed to IRQ 5 Region 0: Memory at e0000000 (32-bit, prefetchable) Region 1: Memory at ec100000 (32-bit, non-prefetchable) Capabilities: [d0] Power Management version 1 Flags: PMEClk-DSI + D1-D2-AuxCurrent = 0mA PME (D0-, D1-, D2-, D3hot-,

"6572" study on the display module of MTK platform

Now in the study of the display subsystem MTK, there is a process that is not quite clear where you want to inquire:How does the 1.cmd mode and video mode framebuffer, and the difference between the two modes?The framebuffer update for CMD and video mode is the same in the previous section of OVL, Surfaceflinger trigger.The difference between the two modes is that when the system has a content update, CMD mode only needs to trigger the DSI brush scree

Gdb debugging --- what is the first Latch held during update?

0x8f96376 Rsi 0x1 1 ---- second parameterRdi 0x601082f0 1611694832 ---- first Parameter That is, 0x601082f0 must be written to 201710000601082f0. sys@OCM> select name from v$latch_children where addr='00000000601082F0';NAME----------------------------------------------------------------shared pool QQ:252803295 DSI Core Search group II: 177089463 (1000 technical groups: Not full)DSI C

Buffer busy waits my opinion

an xcur data block, write on the cloned block. The clone is safe at this time, because the process that reads the memory block does not modify the data block, ensuring the clone security.Speaking of this, it is basically a simple summary, but before the summary, it is necessary to give you a brief introduction to the two lists on the buffer header. Bufferheader has two lists: users list and waiter list. Vage posts are well written. QQ:252803295 DSI

Use the dynamic proxy in Java to implement the database connection pool (loaded from: http://www.ibm.com/developerworks/cn/java/l-connpoolproxy)

, the exception will be thrown if a certain name has been bound * @ throws classnotfoundexception cannot find the driver in connection class * @ throws illegalaccessexception Driver Class error in connection pool configuration * @ throws instantiationexception unable to instantiate Driver Class * @ throws sqlexception unable to normally connect to the specified database */public static datasource rebind (string name, connectionparam PARAM) throws failed, classnotfoundexception, illegalaccessexce

Use Dynamic proxy in Java to implement database connection pool

be thrown if a certain name has been bound * @ throws classnotfoundexception cannot find the driver in connection class * @ throws illegalaccessexception Driver Class error in connection pool configuration * @ throws instantiationexception unable to instantiate Driver Class * @ throws sqlexception unable to normally connect to the specified database */public static datasource rebind (string name, connectionparam PARAM) throws failed, classnotfoundexception, illegalaccessexception, instantiation

MTK LCM Drive Porting

", //device name. Set_util_funcs = Lcm_set_util_ Funcs, //Get lcm_driver structure. Get_params = lcm_get_params, //Get LCM parameters. init = lcm_init, // LCM initialization function. suspend = lcm_suspend, //lcm hangs. Resume = lcm_resume, //lcm restore. compare_id = lcm_ COMPARE_ID, //device ID match};The above function interface is for several important interfaces in the MTK framework;/* Get the LCM_DRIVER structure of the device */static void

Npoi_2.1.3_ Learning Record (1)-Create Excel details such as: Author, title, tags, notes, topics, and more.

Two objects used: Documentsummaryinformation and summaryinformation.The code is as follows:Static voidMain (string[] args) { //Create an Excel objectHssfworkbook Hssfworkbook =NewHssfworkbook (); //Create Excel properties in the source and description, etc.Documentsummaryinformation dsi =propertysetfactory.createdocumentsummaryinformation (); Dsi.company="NPOI-1"; Dsi. Category="NPOI-2";

[Original] detailed explanation of the mathematical calculation process of bone movement Transformation

the Allied data file is right-handed., So,In order to be able to use the left-hand function in DX for substantial right-hand computation, WeThe right hand of quarternion must beX, Y, ZPerform a symbol flipNote that this is a permanent operation: After a symbol is flipped, you no longer need to consider the computing problem of the left and right hand series related to Quaternion. The "left-hand functions" here include d3d functions related to all rot

Oracle-based SQL Optimization Methodology

optimize some SQL statements ).My learning method:1. I have read at least 5000 articles on metalink, so I am still sensitive to the problem.2. This is based on the fact that I am familiar with Oracle databases, and metalink and DSI are very helpful to me, with the basis of metalink and DSI, there are some problems that I can be confident in the simulation process.3. BBED is just a tool. The key to making g

OracleLibrarycache internal mechanism description

1. LibraryCache indicates that LibraryCache is a part of Sharedpool in OracleSGA. For details about SharedPool, refer to this article: OracleShared 1. Library Cache indicates that LibraryCache is part of the Shared pool in Oracle SGA. For details about the Shared Pool, refer to this article: Oracle Shared 1. Library Cache description LibraryCache is a component of the Shared pool in Oracle SGA. For details about Shared Pool, refer to this article: Oracle Shared pool details Here we will foc

Npoi + sharpziplib compresses multiple Excel downloads

("This is a sample ");Sheet2.createrow (0). createcell (0). setcellvalue ("This is a sample ");Sheet3.createrow (0). createcell (0). setcellvalue ("This is a sample ");Int x = 1;For (INT I = 1; I {Irow ROW = sheet1.createrow (I );For (Int J = 0; j {Row. createcell (j). setcellvalue (x ++ );}}For (INT I = 1; I {Irow ROW = sheet2.createrow (I );For (Int J = 0; j {Row. createcell (j). setcellvalue (x ++ );}}For (INT I = 1; I {Irow ROW = sheet3.createrow (I );For (Int J = 0; j {Row. createcell (j).

Description of the internal mechanism of Oracle Library cache

1. Library Cache description LibraryCache is a component of the Shared pool in Oracle SGA. For details about Shared Pool, refer to this article: Oracle Shared pool details Here we will focus on a management mechanism of Library Cache. I have reviewed the following two articles: Librarycache internal mechanism details Storage location of the Execution Plan in Oracle 1. Description of Library Cache in DSI: (1) An area in the shared pool thatmanages i

C # How to export DataTable to Excel Solution

){_ SheetRowNum = sheetRowNum;InstanceWorkBook ();}/// /// Instance method/// /// Public Excel (DataColumnCollection columns){_ Columns = columns;InstanceWorkBook ();}Private void InstanceWorkBook (){//// Cretate WorkBook_ WorkBook = new HSSFWorkbook ();Var dsi = PropertySetFactory. CreateDocumentSummaryInformation ();Dsi. Company = "yyitimes ";_ WorkBook. DocumentSummaryInformation =

jcef3--Google Browser core Java implementation (a): Use JAWT to get the form handle

ItemsConfiguration item is release    Configuration item using Jawt.lib Static library    Change the header file, make # include     (The trailing bar is the cursor)Write source file( Remove the source file precompiled header before you create the source file and prepare to start writing code. )    Start coding (There are examples of use in jawt.h, we change)1#include"jni.h"2#include"jawt_md.h"3#include"johness_jcef3_util_awtutil.h"4 5Jniexport jint jnicall java_johness_jcef3_util_awtutil_getwi

Tiny210 (s5pv210) LCD controller RGB configuration learning records

area. Fimd: fully interactive mobile display, a fully interactive mobile display device. The LCD controller integrated in 210 should be part of fimd, and there is nothing else in the fimd module, I think this is the case. It will be mentioned later in the configuration process. Fimc: fully interactive mobile camera, a fully interactive Mobile Camera device, 210 which integrates the camera controller as part of fimc. in LCD configuration, fimc0 and fimc1 indicate that the data source channel of

3.2 using npoi to Operate Excel -- generate a multiplication table

" , Filemode. Create );Hssfworkbook. Write (File );File. Close ();} StaticVoidInitializeworkbook (){Hssfworkbook=NewHssfworkbook (); // Create a entry of documentsummaryinformation Documentsummaryinformation DSI = Propertysetfactory. createdocumentsummaryinformation ();DSI. Company = " Npoi team " ;Hssfworkbook. documentsummaryinformation = DSI

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