X-Git-Url: http://git.cascardo.info/?p=cascardo%2Fkernel%2Fold_slides%2F.git;a=blobdiff_plain;f=plano;h=f1b0eb31bdebc1f724475694b169e50be940fe1e;hp=140c9f2d19dca8cafa70d5d4ac271fb57f8971b0;hb=HEAD;hpb=7a9e10d90a33c31ca9095cab597c7ce28b3b3dca

diff --git a/plano b/plano
index 140c9f2..f1b0eb3 100644
--- a/plano
+++ b/plano
@@ -1,15 +1,22 @@
+DAY ONE:
 intro
 	linux
-		version history/evolution DO?
-		modules
+		version history/evolution/compatibility
 		constant change, book is already outdated
 		current versioning/development model
+		modules
 		build dependencies
 		running new/bleeding-edge kernels
-	kernel/user space
-	libc/system calls
 
 concepts
+	kernel/user space
+		rings/levels/modes
+		memory protection/segmentation/pagination
+		library calls
+		allowed uses (floating point forbidden)
+		concurrency
+		small stack
+	libc/system calls
 	operating system functions
 		process management
 			concurrency
@@ -27,21 +34,25 @@ concepts
 		restrict some operations to privileged users
 		do not send unzeored data (information leak)
 		do not trust received data (malformed data) (exploit)
+		risks for the machine/system/data
 
 basics
 	Makefile
-	Kconfig DO?
+	Kconfig
+	building linux
 	build
 	init/exit
 	module macros
 	module parameters
 	config/build time options/parameters
-	sysfs interface for modules DO?
+	sysfs interface for modules
 	printk
+	module loading/unloading/handling
 
 VFS
 	center/hub/interface
 	char/block/procfs/sysfs: all go through VFS to device
+	fops is the main structure in linux
 	FS on top of block devices
 		block layer
 		exception: some on top of MTD devices
@@ -53,37 +64,43 @@ device driver subsystem
 		dev file
 		sysfs
 		procfs
-		sysctl DO?
-		netlink DO?
+		sysctl
+		netlink
+
+C basics
+	container_of (struct embedding)
+	fops/*ops (function pointers)
+	IS_ERR (pointers and error values)
 
 char device
+	MAJOR/MINOR/MKDEV
+
+
+DAY TWO:
 procfs
-sysfs
-block device DO? STUDY
-network device DO? STUDY
-terminal/serial device DO? STUDY
 
 debugging techniques
 	printk/procfs
-	debugfs DO? STUDY
-	kgdb DO?
-	trace DO?
-	kprobe DO?
-
-C basics
-	container_of (struct embedding)
-	fops/*ops (function pointers)
-	IS_ERR (pointers and error values)
+	debugfs
+	kgdb
+	trace
+	kprobe
 
 data structures
 	list_head
 	bitmap
-	trees DO? STUDY rbtree
-	idr DO?
-	any hash implementation DO? STUDY
+	trees rbtree
+	idr
+	any hash implementation
+
+portability
+	be16_to_cpu/etc
+
+
 
+DAY THREE:
 contexts
-	user context (current, copy_from_user, schedule) STUDY schedule
+	user context (current, copy_from_user, schedule) schedule
 	interrupt context
 	workqueue is user context
 	sleep == schedule
@@ -93,18 +110,18 @@ concurrency
 	locking
 	spinlock: disable scheduler
 	semaphore/mutex sleeps
-	per-cpu variables STUDY
+	per-cpu variables
 	atomic
-	RCU DO?
+	RCU
 
 memory allocation
 	kobject refcount MENTION
-	slab STUDY
+	slab
 		multiple implementations
 		space efficient (tables for different object sizes)
 		concurrency efficient (per-cpu tables)
 	kmalloc
-		uses slab STUDY
+		uses slab
 	vmalloc
 		linux memory layout
 
@@ -113,27 +130,31 @@ scheduling/timing
 	timer
 	workqueue
 	completion/wait_head
-	tasklets DO? STUDY
+	tasklets
 
-portability
-	readl/writel/etc
-	be16_to_cpu/etc
-
-interrupt
+DAY FOUR:
+I/O
+	readl/writel/etc (portability)
+Interrupts
 	{request,free}_irq
 	interrupt context
 	tasklet/workqueue/postpone
-
-buses
-	PCI bus DO?
-	USB bus DO?
-	some bus: SPI, I2C, parport DO?
-
-device classes
-	some class: cdrom, backlight, input, misc DO?
-
-kobject DO? advanced
-	refcounting
-
-STUDY:
-	module owner, concurrency, reference counting
+Device Model
+	classes: cdrom, backlight, input, misc
+	terminal/serial device
+	sysfs
+	kobject (advanced)
+		refcounting
+
+Buses
+	PCI
+	USB
+	other buses: SPI, I2C, parport, etc
+
+DAY FIVE:
+DMA/Memory Mapping
+Block Devices
+	scather/gather
+Network Devices
+	skb
+board/machine/architecture files