d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
329327e272
freebsd-dev/sys/contrib/octeon-sdk/cvmx-app-init.c
Juli Mallett dc4ee6ca91 Merge the Cavium Octeon SDK 2.3.0 Simple Executive code and update FreeBSD to 
make use of it where possible.

This primarily brings in support for newer hardware, and FreeBSD is not yet
able to support the abundance of IRQs on new hardware and many features in the
Ethernet driver.

Because of the changes to IRQs in the Simple Executive, we have to maintain our
own list of Octeon IRQs now, which probably can be pared-down and be specific
to the CIU interrupt unit soon, and when other interrupt mechanisms are added
they can maintain their own definitions.

Remove unmasking of interrupts from within the UART device now that the
function used is no longer present in the Simple Executive.  The unmasking
seems to have been gratuitous as this is more properly handled by the buses
above the UART device, and seems to work on that basis.
2012-03-11 06:17:49 +00:00

590 lines
22 KiB
C
Raw Blame History

/***********************license start***************
* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Inc. nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "executive-config.h"
#include "cvmx-config.h"
#include "cvmx.h"
#include "cvmx-spinlock.h"
#include <octeon-app-init.h>
#include "cvmx-sysinfo.h"
#include "cvmx-bootmem.h"
#include "cvmx-uart.h"
#include "cvmx-coremask.h"
#include "cvmx-core.h"
#include "cvmx-interrupt.h"
#include "cvmx-ebt3000.h"
#include "cvmx-sim-magic.h"
#include "cvmx-debug.h"
#include "cvmx-qlm.h"
#include "cvmx-scratch.h"
#include "cvmx-helper-cfg.h"
#include "cvmx-helper-jtag.h"
#include <octeon_mem_map.h>
#include "libfdt.h"
int cvmx_debug_uart = -1;
/**
* @file
*
* Main entry point for all simple executive based programs.
*/
extern void cvmx_interrupt_initialize(void);
/**
* Main entry point for all simple executive based programs.
* This is the first C function called. It completes
* initialization, calls main, and performs C level cleanup.
*
* @param app_desc_addr
* Address of the application description structure passed
* brom the boot loader.
*/
EXTERN_ASM void __cvmx_app_init(uint64_t app_desc_addr);
/**
* Set up sysinfo structure from boot descriptor versions 6 and higher.
* In these versions, the interesting data in not in the boot info structure
* defined by the toolchain, but is in the cvmx_bootinfo structure defined in
* the simple exec.
*
* @param app_desc_ptr
* pointer to boot descriptor block
*
* @param sys_info_ptr
* pointer to sysinfo structure to fill in
*/
static void process_boot_desc_ver_6(octeon_boot_descriptor_t *app_desc_ptr, cvmx_sysinfo_t *sys_info_ptr)
{
cvmx_bootinfo_t *cvmx_bootinfo_ptr = CASTPTR(cvmx_bootinfo_t, app_desc_ptr->cvmx_desc_vaddr);
/* copy application information for simple exec use */
/* Populate the sys_info structure from the boot descriptor block created by the bootloader.
** The boot descriptor block is put in the top of the heap, so it will be overwritten when the
** heap is fully used. Information that is to be used must be copied before that.
** Applications should only use the sys_info structure, not the boot descriptor
*/
if (cvmx_bootinfo_ptr->major_version == 1)
{
sys_info_ptr->core_mask = cvmx_bootinfo_ptr->core_mask;
sys_info_ptr->heap_base = cvmx_bootinfo_ptr->heap_base;
sys_info_ptr->heap_size = cvmx_bootinfo_ptr->heap_end - cvmx_bootinfo_ptr->heap_base;
sys_info_ptr->stack_top = cvmx_bootinfo_ptr->stack_top;
sys_info_ptr->stack_size = cvmx_bootinfo_ptr->stack_size;
sys_info_ptr->init_core = cvmx_get_core_num();
sys_info_ptr->phy_mem_desc_addr = cvmx_bootinfo_ptr->phy_mem_desc_addr;
sys_info_ptr->exception_base_addr = cvmx_bootinfo_ptr->exception_base_addr;
sys_info_ptr->cpu_clock_hz = cvmx_bootinfo_ptr->eclock_hz;
sys_info_ptr->dram_data_rate_hz = cvmx_bootinfo_ptr->dclock_hz * 2;
sys_info_ptr->board_type = cvmx_bootinfo_ptr->board_type;
sys_info_ptr->board_rev_major = cvmx_bootinfo_ptr->board_rev_major;
sys_info_ptr->board_rev_minor = cvmx_bootinfo_ptr->board_rev_minor;
memcpy(sys_info_ptr->mac_addr_base, cvmx_bootinfo_ptr->mac_addr_base, 6);
sys_info_ptr->mac_addr_count = cvmx_bootinfo_ptr->mac_addr_count;
memcpy(sys_info_ptr->board_serial_number, cvmx_bootinfo_ptr->board_serial_number, CVMX_BOOTINFO_OCTEON_SERIAL_LEN);
sys_info_ptr->console_uart_num = 0;
if (cvmx_bootinfo_ptr->flags & OCTEON_BL_FLAG_CONSOLE_UART1)
sys_info_ptr->console_uart_num = 1;
if (cvmx_bootinfo_ptr->dram_size > 32*1024*1024)
sys_info_ptr->system_dram_size = (uint64_t)cvmx_bootinfo_ptr->dram_size; /* older bootloaders incorrectly gave this in bytes, so don't convert */
else
sys_info_ptr->system_dram_size = (uint64_t)cvmx_bootinfo_ptr->dram_size * 1024 * 1024; /* convert from Megabytes to bytes */
if (cvmx_bootinfo_ptr->minor_version >= 1)
{
sys_info_ptr->compact_flash_common_base_addr = cvmx_bootinfo_ptr->compact_flash_common_base_addr;
sys_info_ptr->compact_flash_attribute_base_addr = cvmx_bootinfo_ptr->compact_flash_attribute_base_addr;
sys_info_ptr->led_display_base_addr = cvmx_bootinfo_ptr->led_display_base_addr;
}
else if (sys_info_ptr->board_type == CVMX_BOARD_TYPE_EBT3000 ||
sys_info_ptr->board_type == CVMX_BOARD_TYPE_EBT5800 ||
sys_info_ptr->board_type == CVMX_BOARD_TYPE_EBT5810)
{
/* Default these variables so that users of structure can be the same no
** matter what version fo boot info block the bootloader passes */
sys_info_ptr->compact_flash_common_base_addr = 0x1d000000 + 0x800;
sys_info_ptr->compact_flash_attribute_base_addr = 0x1d010000;
if (sys_info_ptr->board_rev_major == 1)
sys_info_ptr->led_display_base_addr = 0x1d020000;
else
sys_info_ptr->led_display_base_addr = 0x1d020000 + 0xf8;
}
else
{
sys_info_ptr->compact_flash_common_base_addr = 0;
sys_info_ptr->compact_flash_attribute_base_addr = 0;
sys_info_ptr->led_display_base_addr = 0;
}
if (cvmx_bootinfo_ptr->minor_version >= 2)
{
sys_info_ptr->dfa_ref_clock_hz = cvmx_bootinfo_ptr->dfa_ref_clock_hz;
sys_info_ptr->bootloader_config_flags = cvmx_bootinfo_ptr->config_flags;
}
else
{
sys_info_ptr->dfa_ref_clock_hz = 0;
sys_info_ptr->bootloader_config_flags = 0;
if (app_desc_ptr->flags & OCTEON_BL_FLAG_DEBUG)
sys_info_ptr->bootloader_config_flags |= CVMX_BOOTINFO_CFG_FLAG_DEBUG;
if (app_desc_ptr->flags & OCTEON_BL_FLAG_NO_MAGIC)
sys_info_ptr->bootloader_config_flags |= CVMX_BOOTINFO_CFG_FLAG_NO_MAGIC;
}
}
else
{
printf("ERROR: Incompatible CVMX descriptor passed by bootloader: %d.%d\n",
(int)cvmx_bootinfo_ptr->major_version, (int)cvmx_bootinfo_ptr->minor_version);
exit(-1);
}
if ((cvmx_bootinfo_ptr->minor_version >= 3) && (cvmx_bootinfo_ptr->fdt_addr != 0))
{
sys_info_ptr->fdt_addr = UNMAPPED_PTR(cvmx_bootinfo_ptr->fdt_addr);
if (fdt_check_header((const void *)sys_info_ptr->fdt_addr))
{
printf("ERROR : Corrupt Device Tree.\n");
exit(-1);
}
printf("Using device tree\n");
}
else
{
sys_info_ptr->fdt_addr = 0;
}
}
/**
* Interrupt handler for calling exit on Control-C interrupts.
*
* @param irq_number IRQ interrupt number
* @param registers CPU registers at the time of the interrupt
* @param user_arg Unused user argument
*/
static void process_break_interrupt(int irq_number, uint64_t registers[32], void *user_arg)
{
/* Exclude new functionality when building with older toolchains */
#if OCTEON_APP_INIT_H_VERSION >= 3
int uart = irq_number - CVMX_IRQ_UART0;
cvmx_uart_lsr_t lsrval;
/* Check for a Control-C interrupt from the console. This loop will eat
all input received on the uart */
lsrval.u64 = cvmx_read_csr(CVMX_MIO_UARTX_LSR(uart));
while (lsrval.s.dr)
{
int c = cvmx_read_csr(CVMX_MIO_UARTX_RBR(uart));
if (c == '\003')
{
register uint64_t tmp;
/* Wait for an another Control-C if right now we have no
access to the console. After this point we hold the
lock and use a different lock to synchronize between
the memfile dumps from different cores. As a
consequence regular printfs *don't* work after this
point! */
if (__octeon_uart_trylock () == 1)
return;
/* Pulse MCD0 signal on Ctrl-C to stop all the cores. Also
set the MCD0 to be not masked by this core so we know
the signal is received by someone */
asm volatile (
"dmfc0 %0, $22\n"
"ori %0, %0, 0x1110\n"
"dmtc0 %0, $22\n"
: "=r" (tmp));
}
lsrval.u64 = cvmx_read_csr(CVMX_MIO_UARTX_LSR(uart));
}
#endif
}
/**
* This is the debug exception handler with "break". Before calling exit to
* dump the profile-feedback output it releases the lock on the console.
* This way if there is buffered data in stdout it can still be flushed.
* stdio is required to flush all output during an fread.
*/
static void exit_on_break(void)
{
#if OCTEON_APP_INIT_H_VERSION >= 4
unsigned int coremask = cvmx_sysinfo_get()->core_mask;
cvmx_coremask_barrier_sync(coremask);
if (cvmx_coremask_first_core(coremask))
__octeon_uart_unlock();
#endif
exit(0);
}
/* Add string signature to applications so that we can easily tell what
** Octeon revision they were compiled for. Don't make static to avoid unused
** variable warning. */
#define xstr(s) str(s)
#define str(s) #s
int octeon_model_version_check(uint32_t chip_id);
#define OMS xstr(OCTEON_MODEL)
char octeon_rev_signature[] =
#ifdef USE_RUNTIME_MODEL_CHECKS
"Compiled for runtime Octeon model checking";
#else
"Compiled for Octeon processor id: "OMS;
#endif
#define OCTEON_BL_FLAG_HPLUG_CORES (1 << 6)
void __cvmx_app_init(uint64_t app_desc_addr)
{
/* App descriptor used by bootloader */
octeon_boot_descriptor_t *app_desc_ptr = CASTPTR(octeon_boot_descriptor_t, app_desc_addr);
/* app info structure used by the simple exec */
cvmx_sysinfo_t *sys_info_ptr = cvmx_sysinfo_get();
int breakflag = 0;
//printf("coremask=%08x flags=%08x \n", app_desc_ptr->core_mask, app_desc_ptr->flags);
if (cvmx_coremask_first_core(app_desc_ptr->core_mask))
{
/* Intialize the bootmem allocator with the descriptor that was provided by
* the bootloader
* IMPORTANT: All printfs must happen after this since PCI console uses named
* blocks.
*/
cvmx_bootmem_init(CASTPTR(cvmx_bootinfo_t, app_desc_ptr->cvmx_desc_vaddr)->phy_mem_desc_addr);
/* do once per application setup */
if (app_desc_ptr->desc_version < 6)
{
printf("Obsolete bootloader, can't run application\n");
exit(-1);
}
else
{
/* Handle all newer versions here.... */
if (app_desc_ptr->desc_version > 7)
{
printf("Warning: newer boot descripter version than expected\n");
}
process_boot_desc_ver_6(app_desc_ptr,sys_info_ptr);
}
/*
* set up the feature map and config.
*/
octeon_feature_init();
__cvmx_helper_cfg_init();
}
/* The flags varibale get copied over at some places and tracing the origins
found that
** In octeon_setup_boot_desc_block
. cvmx_bootinfo_array[core].flags is initialized and the various bits are set
. cvmx_bootinfo_array[core].flags gets copied to boot_desc[core].flags
. Then boot_desc then get copied over to the end of the application heap and
boot_info_block_array[core].boot_descr_addr is set to point to the boot_desc
in heap.
** In start_app boot_vect->boot_info_addr->boot_desc_addr is referenced and passed on
to octeon_setup_crt0_tlb() and this puts it into r16
** In ctr0.S of the toolchain r16 is picked up and passed on as a parameter to
__cvmx_app_init
Note : boot_vect->boot_info_addr points to boot_info_block_array[core] and this
pointer is setup in octeon_setup_boot_vector()
*/
if (!(app_desc_ptr->flags & OCTEON_BL_FLAG_HPLUG_CORES))
cvmx_coremask_barrier_sync(app_desc_ptr->core_mask);
breakflag = sys_info_ptr->bootloader_config_flags & CVMX_BOOTINFO_CFG_FLAG_BREAK;
/* No need to initialize bootmem, interrupts, interrupt handler and error handler
if version does not match. */
if (cvmx_coremask_first_core(sys_info_ptr->core_mask))
{
/* Check to make sure the Chip version matches the configured version */
uint32_t chip_id = cvmx_get_proc_id();
/* Make sure we can properly run on this chip */
octeon_model_version_check(chip_id);
}
cvmx_interrupt_initialize();
if (cvmx_coremask_first_core(sys_info_ptr->core_mask))
{
int break_uart = 0;
unsigned int i;
if (breakflag && cvmx_debug_booted())
{
printf("ERROR: Using debug and break together in not supported.\n");
while (1)
;
}
/* Search through the arguments for a break=X or a debug=X. */
for (i = 0; i < app_desc_ptr->argc; i++)
{
const char *argv = CASTPTR(const char, CVMX_ADD_SEG32(CVMX_MIPS32_SPACE_KSEG0, app_desc_ptr->argv[i]));
if (strncmp(argv, "break=", 6) == 0)
break_uart = atoi(argv + 6);
else if (strncmp(argv, "debug=", 6) == 0)
cvmx_debug_uart = atoi(argv + 6);
}
if (breakflag)
{
int32_t *trampoline = CASTPTR(int32_t, CVMX_ADD_SEG32(CVMX_MIPS32_SPACE_KSEG0, BOOTLOADER_DEBUG_TRAMPOLINE));
/* On debug exception, call exit_on_break from all cores. */
*trampoline = (int32_t)(long)&exit_on_break;
cvmx_uart_enable_intr(break_uart, process_break_interrupt);
}
}
if ( !(app_desc_ptr->flags & OCTEON_BL_FLAG_HPLUG_CORES))
cvmx_coremask_barrier_sync(app_desc_ptr->core_mask);
/* Clear BEV now that we have installed exception handlers. */
uint64_t tmp;
asm volatile (
" .set push \n"
" .set mips64 \n"
" .set noreorder \n"
" .set noat \n"
" mfc0 %[tmp], $12, 0 \n"
" li $at, 1 << 22 \n"
" not $at, $at \n"
" and %[tmp], $at \n"
" mtc0 %[tmp], $12, 0 \n"
" .set pop \n"
: [tmp] "=&r" (tmp) : );
/* Set all cores to stop on MCD0 signals */
asm volatile(
"dmfc0 %0, $22, 0\n"
"or %0, %0, 0x1100\n"
"dmtc0 %0, $22, 0\n" : "=r" (tmp));
CVMX_SYNC;
/* Now intialize the debug exception handler as BEV is cleared. */
if ((!breakflag) && (!(app_desc_ptr->flags & OCTEON_BL_FLAG_HPLUG_CORES)))
cvmx_debug_init();
/* Synchronise all cores at this point */
if ( !(app_desc_ptr->flags & OCTEON_BL_FLAG_HPLUG_CORES))
cvmx_coremask_barrier_sync(app_desc_ptr->core_mask);
}
int cvmx_user_app_init(void)
{
uint64_t bist_val;
uint64_t mask;
int bist_errors = 0;
uint64_t tmp;
uint64_t base_addr;
/* Put message on LED display */
if (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM)
ebt3000_str_write("CVMX ");
/* Check BIST results for COP0 registers, some values only meaningful in pass 2 */
CVMX_MF_CACHE_ERR(bist_val);
mask = (0x3fULL<<32); // Icache;BHT;AES;HSH/GFM;LRU;register file
bist_val &= mask;
if (bist_val)
{
printf("BIST FAILURE: COP0_CACHE_ERR: 0x%llx\n", (unsigned long long)bist_val);
bist_errors++;
}
mask = 0xfc00000000000000ull;
CVMX_MF_CVM_MEM_CTL(bist_val);
bist_val &= mask;
if (bist_val)
{
printf("BIST FAILURE: COP0_CVM_MEM_CTL: 0x%llx\n", (unsigned long long)bist_val);
bist_errors++;
}
/* Set up 4 cache lines of local memory, make available from Kernel space */
CVMX_MF_CVM_MEM_CTL(tmp);
tmp &= ~0x1ffull;
tmp |= 0x104ull;
/* Set WBTHRESH=4 as per Core-14752 errata in cn63xxp1.X. */
if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X))
{
tmp &= ~(0xfull << 11);
tmp |= 4 << 11;
}
CVMX_MT_CVM_MEM_CTL(tmp);
if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS2_X))
{
/* Clear the lines of scratch memory configured, for
** 63XX pass 2 errata Core-15169. */
uint64_t addr;
unsigned num_lines;
CVMX_MF_CVM_MEM_CTL(tmp);
num_lines = tmp & 0x3f;
for (addr = 0; addr < CVMX_CACHE_LINE_SIZE * num_lines; addr += 8)
cvmx_scratch_write64(addr, 0);
}
#if CVMX_USE_1_TO_1_TLB_MAPPINGS
/* Check to see if the bootloader is indicating that the application is outside
** of the 0x10000000 0x20000000 range, in which case we can't use 1-1 mappings */
if (cvmx_sysinfo_get()->bootloader_config_flags & CVMX_BOOTINFO_CFG_FLAG_OVERSIZE_TLB_MAPPING)
{
printf("ERROR: 1-1 TLB mappings configured and oversize application loaded.\n");
printf("ERROR: Either 1-1 TLB mappings must be disabled or application size reduced.\n");
exit(-1);
}
/* Create 1-1 Mappings for all DRAM up to 8 gigs, excluding the low 1 Megabyte. This area
** is reserved for the bootloader and exception vectors. By not mapping this area, NULL pointer
** dereferences will be caught with TLB exceptions. Exception handlers should be written
** using XKPHYS or KSEG0 addresses. */
#if CVMX_NULL_POINTER_PROTECT
/* Exclude low 1 MByte from mapping to detect NULL pointer accesses.
** The only down side of this is it uses more TLB mappings */
cvmx_core_add_fixed_tlb_mapping_bits(0x0, 0x0, 0x100000 | TLB_DIRTY | TLB_VALID | TLB_GLOBAL, CVMX_TLB_PAGEMASK_1M);
cvmx_core_add_fixed_tlb_mapping(0x200000, 0x200000, 0x300000, CVMX_TLB_PAGEMASK_1M);
cvmx_core_add_fixed_tlb_mapping(0x400000, 0x400000, 0x500000, CVMX_TLB_PAGEMASK_1M);
cvmx_core_add_fixed_tlb_mapping(0x600000, 0x600000, 0x700000, CVMX_TLB_PAGEMASK_1M);
cvmx_core_add_fixed_tlb_mapping(0x800000, 0x800000, 0xC00000, CVMX_TLB_PAGEMASK_4M);
cvmx_core_add_fixed_tlb_mapping(0x1000000, 0x1000000, 0x1400000, CVMX_TLB_PAGEMASK_4M);
cvmx_core_add_fixed_tlb_mapping(0x1800000, 0x1800000, 0x1c00000, CVMX_TLB_PAGEMASK_4M);
cvmx_core_add_fixed_tlb_mapping(0x2000000, 0x2000000, 0x3000000, CVMX_TLB_PAGEMASK_16M);
cvmx_core_add_fixed_tlb_mapping(0x4000000, 0x4000000, 0x5000000, CVMX_TLB_PAGEMASK_16M);
cvmx_core_add_fixed_tlb_mapping(0x6000000, 0x6000000, 0x7000000, CVMX_TLB_PAGEMASK_16M);
#else
/* Map entire low 128 Megs, including 0x0 */
cvmx_core_add_fixed_tlb_mapping(0x0, 0x0, 0x4000000ULL, CVMX_TLB_PAGEMASK_64M);
#endif
cvmx_core_add_fixed_tlb_mapping(0x8000000ULL, 0x8000000ULL, 0xc000000ULL, CVMX_TLB_PAGEMASK_64M);
if (OCTEON_IS_MODEL(OCTEON_CN6XXX))
{
for (base_addr = 0x20000000ULL; base_addr < (cvmx_sysinfo_get()->system_dram_size + 0x10000000ULL); base_addr += 0x20000000ULL)
{
if (0 > cvmx_core_add_fixed_tlb_mapping(base_addr, base_addr, base_addr + 0x10000000ULL, CVMX_TLB_PAGEMASK_256M))
{
printf("ERROR adding 1-1 TLB mapping for address 0x%llx\n", (unsigned long long)base_addr);
/* Exit from here, as expected memory mappings aren't set
up if this fails */
exit(-1);
}
}
}
else
{
/* Create 1-1 mapping for next 256 megs
** bottom page is not valid */
cvmx_core_add_fixed_tlb_mapping_bits(0x400000000ULL, 0, 0x410000000ULL | TLB_DIRTY | TLB_VALID | TLB_GLOBAL, CVMX_TLB_PAGEMASK_256M);
/* Map from 0.5 up to the installed memory size in 512 MByte chunks. If this loop runs out of memory,
** the NULL pointer detection can be disabled to free up more TLB entries. */
if (cvmx_sysinfo_get()->system_dram_size > 0x20000000ULL)
{
for (base_addr = 0x20000000ULL; base_addr <= (cvmx_sysinfo_get()->system_dram_size - 0x20000000ULL); base_addr += 0x20000000ULL)
{
if (0 > cvmx_core_add_fixed_tlb_mapping(base_addr, base_addr, base_addr + 0x10000000ULL, CVMX_TLB_PAGEMASK_256M))
{
printf("ERROR adding 1-1 TLB mapping for address 0x%llx\n", (unsigned long long)base_addr);
/* Exit from here, as expected memory mappings
aren't set up if this fails */
exit(-1);
}
}
}
}
#endif
cvmx_sysinfo_t *sys_info_ptr = cvmx_sysinfo_get();
cvmx_bootmem_init(sys_info_ptr->phy_mem_desc_addr);
/* Initialize QLM and JTAG settings. Also apply any erratas. */
if (cvmx_coremask_first_core(cvmx_sysinfo_get()->core_mask))
cvmx_qlm_init();
return(0);
}
void __cvmx_app_exit(void)
{
cvmx_debug_finish();
if (cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_SIM)
{
CVMX_BREAK;
}
/* Hang forever, until more appropriate stand alone simple executive
exit() is implemented */
while (1);
}
Reference in New Issue View Git Blame Copy Permalink