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![David Daney](/assets/img/avatar_default.png)
These files are used to coordinate resource sharing between all of the programs running on the OCTEON SOC. The OCTEON processor has many CPU cores (current parts have up to 16, but more are possible). It also has a variety of on-chip hardware blocks for things like network acceleration, encryption and RAID. One typical configuration is to run Linux on several of the CPU cores, and other dedicated applications on the other cores. Resource allocation between the various programs running on the system (Linux kernel and other dedicated applications) needs to be coordinated. The code we use to do this we call the 'executive'. All of this resource allocation and sharing code is gathered together in the executive directory. Included in the patch set are the following files: cvmx-bootmem.c and cvmx-sysinfo.c -- Coordinate memory allocation. All memory used by the Linux kernel is obtained here at boot time. cvmx-l2c.c -- Coordinates operations on the shared level 2 cache. octeon-model.c -- Probes chip capabilities and version. The corresponding headers are in asm/octeon. Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100644 arch/mips/cavium-octeon/executive/Makefile create mode 100644 arch/mips/cavium-octeon/executive/cvmx-bootmem.c create mode 100644 arch/mips/cavium-octeon/executive/cvmx-l2c.c create mode 100644 arch/mips/cavium-octeon/executive/cvmx-sysinfo.c create mode 100644 arch/mips/cavium-octeon/executive/octeon-model.c create mode 100644 arch/mips/include/asm/octeon/cvmx-asm.h create mode 100644 arch/mips/include/asm/octeon/cvmx-bootinfo.h create mode 100644 arch/mips/include/asm/octeon/cvmx-bootmem.h create mode 100644 arch/mips/include/asm/octeon/cvmx-l2c.h create mode 100644 arch/mips/include/asm/octeon/cvmx-packet.h create mode 100644 arch/mips/include/asm/octeon/cvmx-spinlock.h create mode 100644 arch/mips/include/asm/octeon/cvmx-sysinfo.h create mode 100644 arch/mips/include/asm/octeon/cvmx.h create mode 100644 arch/mips/include/asm/octeon/octeon-feature.h create mode 100644 arch/mips/include/asm/octeon/octeon-model.h
152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
/***********************license start***************
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* Author: Cavium Networks
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*
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* Contact: support@caviumnetworks.com
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* This file is part of the OCTEON SDK
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*
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* Copyright (c) 2003-2008 Cavium Networks
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, Version 2, as
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* published by the Free Software Foundation.
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*
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* This file is distributed in the hope that it will be useful, but
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* AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
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* NONINFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this file; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* or visit http://www.gnu.org/licenses/.
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*
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* This file may also be available under a different license from Cavium.
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* Contact Cavium Networks for more information
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***********************license end**************************************/
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/*
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* This module provides system/board information obtained by the bootloader.
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*/
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#ifndef __CVMX_SYSINFO_H__
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#define __CVMX_SYSINFO_H__
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#define OCTEON_SERIAL_LEN 20
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/**
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* Structure describing application specific information.
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* __cvmx_app_init() populates this from the cvmx boot descriptor.
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* This structure is private to simple executive applications, so
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* no versioning is required.
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*
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* This structure must be provided with some fields set in order to
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* use simple executive functions in other applications (Linux kernel,
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* u-boot, etc.) The cvmx_sysinfo_minimal_initialize() function is
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* provided to set the required values in these cases.
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*/
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struct cvmx_sysinfo {
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/* System wide variables */
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/* installed DRAM in system, in bytes */
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uint64_t system_dram_size;
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/* ptr to memory descriptor block */
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void *phy_mem_desc_ptr;
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/* Application image specific variables */
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/* stack top address (virtual) */
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uint64_t stack_top;
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/* heap base address (virtual) */
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uint64_t heap_base;
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/* stack size in bytes */
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uint32_t stack_size;
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/* heap size in bytes */
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uint32_t heap_size;
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/* coremask defining cores running application */
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uint32_t core_mask;
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/* Deprecated, use cvmx_coremask_first_core() to select init core */
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uint32_t init_core;
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/* exception base address, as set by bootloader */
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uint64_t exception_base_addr;
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/* cpu clock speed in hz */
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uint32_t cpu_clock_hz;
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/* dram data rate in hz (data rate = 2 * clock rate */
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uint32_t dram_data_rate_hz;
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uint16_t board_type;
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uint8_t board_rev_major;
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uint8_t board_rev_minor;
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uint8_t mac_addr_base[6];
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uint8_t mac_addr_count;
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char board_serial_number[OCTEON_SERIAL_LEN];
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/*
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* Several boards support compact flash on the Octeon boot
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* bus. The CF memory spaces may be mapped to different
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* addresses on different boards. These values will be 0 if
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* CF is not present. Note that these addresses are physical
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* addresses, and it is up to the application to use the
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* proper addressing mode (XKPHYS, KSEG0, etc.)
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*/
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uint64_t compact_flash_common_base_addr;
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uint64_t compact_flash_attribute_base_addr;
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/*
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* Base address of the LED display (as on EBT3000 board) This
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* will be 0 if LED display not present. Note that this
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* address is a physical address, and it is up to the
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* application to use the proper addressing mode (XKPHYS,
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* KSEG0, etc.)
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*/
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uint64_t led_display_base_addr;
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/* DFA reference clock in hz (if applicable)*/
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uint32_t dfa_ref_clock_hz;
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/* configuration flags from bootloader */
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uint32_t bootloader_config_flags;
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/* Uart number used for console */
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uint8_t console_uart_num;
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};
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/**
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* This function returns the system/board information as obtained
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* by the bootloader.
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*
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*
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* Returns Pointer to the boot information structure
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*
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*/
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extern struct cvmx_sysinfo *cvmx_sysinfo_get(void);
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/**
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* This function is used in non-simple executive environments (such as
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* Linux kernel, u-boot, etc.) to configure the minimal fields that
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* are required to use simple executive files directly.
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*
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* Locking (if required) must be handled outside of this
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* function
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*
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* @phy_mem_desc_ptr: Pointer to global physical memory descriptor
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* (bootmem descriptor) @board_type: Octeon board
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* type enumeration
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*
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* @board_rev_major:
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* Board major revision
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* @board_rev_minor:
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* Board minor revision
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* @cpu_clock_hz:
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* CPU clock freqency in hertz
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*
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* Returns 0: Failure
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* 1: success
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*/
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extern int cvmx_sysinfo_minimal_initialize(void *phy_mem_desc_ptr,
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uint16_t board_type,
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uint8_t board_rev_major,
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uint8_t board_rev_minor,
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uint32_t cpu_clock_hz);
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#endif /* __CVMX_SYSINFO_H__ */
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