FCC1 e500mc implementation

This course covers the e500mc core present in 32-bit QorIQ SoCs


Objectives
	This course provides a detailed description of the e500mc internal architecture as well as the associated low level routines.
	Coherency mechanisms required in multiple e500mc platforms are explained through sequences.
	All mechanisms required in a multiple core system are described: atomic sequence through lwarx/stwxc. instruction pair, doorbell interrupts.
	The course focuses on the benefits of the hypervisor: running several operating systems, partitioning, load balancing and virtualization.
	The operation of the MMU is studied, particularly the TLB software reload routines.
	The course details the interrupt proxy unit and provides guidelines to implement nesting.
	Note that for on-site course, the contents can be tailored to specific customer needs.
	This course has been designed in collaboration with Freescale
A more detailed course description is available on request at info@ac6-training.com


Prerequisites
	Experience of a 32-bit processor or DSP is mandatory.
Exercice :		The environment used to build and debug software labs are based on the GNU compiler / linker and the debugger from Lauterbach.

Outline


CORE ARCHITECTURE
	Block diagram
	CoreNet interface
	Highlighting differences between e500 and e500mc
HYPERVISOR
	Privilege levels: user, guest supervisor, hypervisor
	Logical partition
	Hypervisor call instruction
	Bare-metal operation
PIPELINE
	e500mc pipeline implementation
	Issue queue resource requirements
	Execution model
	Branch management: dynamic prediction
	Guarded memory
INTERNAL DATA / INSTRUCTION PATHS
	L1 and L2 cache loading, hit under miss, miss under miss
	The load miss queue
	The store miss merging mechanism
	Clarifying the difference between msync and lwsync
e500mc USER LEVEL PROGRAMMING
	Implementing atomic sequences in multiple core systems, mdors instruction
	Decorated load and store instructions
	Integer arithmetic and logic instructions
	FPU operation : FPSCR register, IEEE vs non-IEEE mode
	Float load / store instructions
	Float arithmetic instructions
	Convert instructions
	The EABI
SUPERVISOR / HYPERVISOR LEVEL PROGRAMMING
	Accessing special registers, understanding the required synchronizations
	Implementing low power modes, wait instruction
	Core timers


THE EXCEPTION MECHANISM
	Exception management: building the handler table through IVPR,IVOR registers
	Finding the exact exception cause through syndrome registers
	New machine check features
	Interrupt proxy
	Doorbell interrupts
THE MEMORY MANAGEMENT UNIT
	4 GB effective address space, 64 GB real address space
	Address translation, understanding the interim 48-bit virtual address
	WIMGE attributes
	Two-level MMU architecture
	Software TLB reload
	Managing a page descriptor table in a SMP system
	Virtualization fault
	External PID load and store instructions
L1 AND L2 CACHES, SNOOPING
	Cache basics
	L1 data cache flush
	L2 cache organization
	Cache coherency basics
	The MESI L1 data line states
	MESI snooping sequences involving two e500mc and a PCI Express master
	Cache-to-cache transactions
	Cache related instructions
	Cache entry locking
	Stashing capability
	L1 and L2 error checking and correction, L2 cache error injection
	Write shadow mode
DEBUG
	Performance monitor
	Nexus debug unit
	Instruction and data breakpoints
	Debug data acquisition message

Duration	Cost	Calendar
3 days	1650 €