pmp.c File Reference

#include <arch/encoding.h>
#include <stdint.h>
#include <arch/pmp.h>
#include <console/console.h>
#include <commonlib/helpers.h>

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Data Structures
struct	pmpcfg_t

Macros
#define	GRANULE   (1 << PMP_SHIFT)

Functions
static uintptr_t	read_pmpcfg (int idx)
static void	write_pmpcfg (int idx, uintptr_t cfg)
static uintptr_t	read_pmpaddr (int idx)
static void	write_pmpaddr (int idx, uintptr_t val)
static pmpcfg_t	generate_pmp_napot (uintptr_t base, uintptr_t size, uintptr_t flags)
static pmpcfg_t	generate_pmp_range (uintptr_t base, uintptr_t size, uintptr_t flags)
static pmpcfg_t	generate_pmp (uintptr_t base, uintptr_t size, uintptr_t flags)
static int	find_empty_pmp_entry (int is_range)
static void	mask_pmp_entry_used (int idx)
void	reset_pmp (void)
void	setup_pmp (uintptr_t base, uintptr_t size, uintptr_t flags)

Variables
static uintptr_t	pmp_entry_used_mask

Macro Definition Documentation

GRANULE

#define GRANULE   (1 << PMP_SHIFT)

Definition at line 9 of file pmp.c.

Function Documentation

find_empty_pmp_entry()

static int find_empty_pmp_entry ( int  is_range )

static

Definition at line 247 of file pmp.c.

References die(), pmp_entries_num(), and pmp_entry_used_mask.

Referenced by setup_pmp().

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generate_pmp()

static pmpcfg_t generate_pmp ( uintptr_t  base, uintptr_t  size, uintptr_t  flags  )

static

Definition at line 234 of file pmp.c.

References base, generate_pmp_napot(), generate_pmp_range(), and IS_POWER_OF_2.

Referenced by setup_pmp().

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generate_pmp_napot()

static pmpcfg_t generate_pmp_napot ( uintptr_t  base, uintptr_t  size, uintptr_t  flags  )

static

Definition at line 210 of file pmp.c.

References pmpcfg_t::address, base, pmpcfg_t::cfg, GRANULE, PMP_L, PMP_NA4, PMP_NAPOT, PMP_R, PMP_SHIFT, PMP_W, PMP_X, and pmpcfg_t::previous_address.

Referenced by generate_pmp().

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generate_pmp_range()

static pmpcfg_t generate_pmp_range ( uintptr_t  base, uintptr_t  size, uintptr_t  flags  )

static

Definition at line 222 of file pmp.c.

References pmpcfg_t::address, base, pmpcfg_t::cfg, PMP_L, PMP_R, PMP_SHIFT, PMP_TOR, PMP_W, PMP_X, and pmpcfg_t::previous_address.

Referenced by generate_pmp().

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mask_pmp_entry_used()

static void mask_pmp_entry_used ( int  idx )

static

Definition at line 272 of file pmp.c.

References pmp_entry_used_mask.

Referenced by setup_pmp().

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read_pmpaddr()

static uintptr_t read_pmpaddr ( int  idx )

static

Definition at line 113 of file pmp.c.

Referenced by write_pmpaddr().

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read_pmpcfg()

static uintptr_t read_pmpcfg ( int  idx )

static

Definition at line 32 of file pmp.c.

Referenced by reset_pmp(), and write_pmpcfg().

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reset_pmp()

void reset_pmp

(

void

)

Definition at line 278 of file pmp.c.

References die(), pmp_entries_num(), PMP_L, read_pmpcfg(), write_pmpaddr(), and write_pmpcfg().

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setup_pmp()

void setup_pmp	(	uintptr_t	base,
		uintptr_t	size,
		uintptr_t	flags
	)

Definition at line 290 of file pmp.c.

References pmpcfg_t::address, base, pmpcfg_t::cfg, find_empty_pmp_entry(), generate_pmp(), mask_pmp_entry_used(), PMP_A, PMP_TOR, pmpcfg_t::previous_address, write_pmpaddr(), and write_pmpcfg().

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write_pmpaddr()

static void write_pmpaddr ( int  idx, uintptr_t  val  )

static

Definition at line 153 of file pmp.c.

References die(), read_pmpaddr(), and val.

Referenced by reset_pmp(), and setup_pmp().

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write_pmpcfg()

static void write_pmpcfg ( int  idx, uintptr_t  cfg  )

static

Definition at line 59 of file pmp.c.

References die(), and read_pmpcfg().

Referenced by reset_pmp(), and setup_pmp().

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Variable Documentation

pmp_entry_used_mask

uintptr_t pmp_entry_used_mask

static

Definition at line 29 of file pmp.c.

Referenced by find_empty_pmp_entry(), and mask_pmp_entry_used().