• Achin Gupta's avatar
    Introduce interrupt registration framework in BL3-1 · 126747f7
    Achin Gupta authored
    This patch introduces a framework for registering interrupts routed to
    EL3. The interrupt routing model is governed by the SCR_EL3.IRQ and
    FIQ bits and the security state an interrupt is generated in. The
    framework recognizes three type of interrupts depending upon which
    exception level and security state they should be handled in
    i.e. Secure EL1 interrupts, Non-secure interrupts and EL3
    interrupts. It provides an API and macros that allow a runtime service
    to register an handler for a type of interrupt and specify the routing
    model. The framework validates the routing model and uses the context
    management framework to ensure that it is applied to the SCR_EL3 prior
    to entry into the target security state. It saves the handler in
    internal data structures. An API is provided to retrieve the handler
    when an interrupt of a particular type is asserted. Registration is
    expected to be done once by the primary CPU. The same handler and
    routing model is used for all CPUs.
    
    Support for EL3 interrupts will be added to the framework in the
    future. A makefile flag has been added to allow the FVP port choose
    between ARM GIC v2 and v3 support in EL3. The latter version is
    currently unsupported.
    
    A framework for handling interrupts in BL3-1 will be introduced in
    subsequent patches. The default routing model in the absence of any
    handlers expects no interrupts to be routed to EL3.
    
    Change-Id: Idf7c023b34fcd4800a5980f2bef85e4b5c29e649
    126747f7
platform.h 14.2 KB
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/*
 * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __PLATFORM_H__
#define __PLATFORM_H__

#include <arch.h>


/*******************************************************************************
 * Platform binary types for linking
 ******************************************************************************/
#define PLATFORM_LINKER_FORMAT          "elf64-littleaarch64"
#define PLATFORM_LINKER_ARCH            aarch64

/*******************************************************************************
 * Generic platform constants
 ******************************************************************************/

/* Size of cacheable stacks */
#define PLATFORM_STACK_SIZE	0x800

/* Size of coherent stacks for debug and release builds */
#if DEBUG
#define PCPU_DV_MEM_STACK_SIZE	0x400
#else
#define PCPU_DV_MEM_STACK_SIZE	0x300
#endif

#define FIRMWARE_WELCOME_STR		"Booting trusted firmware boot loader stage 1\n\r"

/* Trusted Boot Firmware BL2 */
#define BL2_IMAGE_NAME			"bl2.bin"

/* EL3 Runtime Firmware BL31 */
#define BL31_IMAGE_NAME			"bl31.bin"

/* Secure Payload BL32 (Trusted OS) */
#define BL32_IMAGE_NAME			"bl32.bin"

/* Non-Trusted Firmware BL33 and its load address */
#define BL33_IMAGE_NAME			"bl33.bin" /* e.g. UEFI */
#define NS_IMAGE_OFFSET			(DRAM_BASE + 0x8000000) /* DRAM + 128MB */

/* Firmware Image Package */
#define FIP_IMAGE_NAME			"fip.bin"

#define PLATFORM_CACHE_LINE_SIZE	64
#define PLATFORM_CLUSTER_COUNT		2ull
#define PLATFORM_CLUSTER0_CORE_COUNT	4
#define PLATFORM_CLUSTER1_CORE_COUNT	4
#define PLATFORM_CORE_COUNT		(PLATFORM_CLUSTER1_CORE_COUNT + \
						PLATFORM_CLUSTER0_CORE_COUNT)
#define PLATFORM_MAX_CPUS_PER_CLUSTER	4
#define PRIMARY_CPU			0x0
#define MAX_IO_DEVICES			3
#define MAX_IO_HANDLES			4

/* Constants for accessing platform configuration */
#define CONFIG_GICD_ADDR		0
#define CONFIG_GICC_ADDR		1
#define CONFIG_GICH_ADDR		2
#define CONFIG_GICV_ADDR		3
#define CONFIG_MAX_AFF0		4
#define CONFIG_MAX_AFF1		5
/* Indicate whether the CPUECTLR SMP bit should be enabled. */
#define CONFIG_CPU_SETUP		6
#define CONFIG_BASE_MMAP		7
/* Indicates whether CCI should be enabled on the platform. */
#define CONFIG_HAS_CCI			8
#define CONFIG_HAS_TZC			9
#define CONFIG_LIMIT			10

/*******************************************************************************
 * Platform memory map related constants
 ******************************************************************************/
#define TZROM_BASE		0x00000000
#define TZROM_SIZE		0x04000000

#define TZRAM_BASE		0x04000000
#define TZRAM_SIZE		0x40000

#define FLASH0_BASE		0x08000000
#define FLASH0_SIZE		TZROM_SIZE

#define FLASH1_BASE		0x0c000000
#define FLASH1_SIZE		0x04000000

#define PSRAM_BASE		0x14000000
#define PSRAM_SIZE		0x04000000

#define VRAM_BASE		0x18000000
#define VRAM_SIZE		0x02000000

/* Aggregate of all devices in the first GB */
#define DEVICE0_BASE		0x1a000000
#define DEVICE0_SIZE		0x12200000

#define DEVICE1_BASE		0x2f000000
#define DEVICE1_SIZE		0x200000

#define NSRAM_BASE		0x2e000000
#define NSRAM_SIZE		0x10000

/* Location of trusted dram on the base fvp */
#define TZDRAM_BASE		0x06000000
#define TZDRAM_SIZE		0x02000000
#define MBOX_OFF		0x1000

#define DRAM_BASE              0x80000000ull
#define DRAM_SIZE              0x80000000ull

#define PCIE_EXP_BASE		0x40000000
#define TZRNG_BASE		0x7fe60000
#define TZNVCTR_BASE		0x7fe70000
#define TZROOTKEY_BASE		0x7fe80000

/* Memory mapped Generic timer interfaces  */
#define SYS_CNTCTL_BASE		0x2a430000
#define SYS_CNTREAD_BASE	0x2a800000
#define SYS_TIMCTL_BASE		0x2a810000

/* Counter timer module offsets */
#define CNTNSAR			0x4
#define CNTNSAR_NS_SHIFT(x)	x

#define CNTACR_BASE(x)		(0x40 + (x << 2))
#define CNTACR_RPCT_SHIFT	0x0
#define CNTACR_RVCT_SHIFT	0x1
#define CNTACR_RFRQ_SHIFT	0x2
#define CNTACR_RVOFF_SHIFT	0x3
#define CNTACR_RWVT_SHIFT	0x4
#define CNTACR_RWPT_SHIFT	0x5

/* V2M motherboard system registers & offsets */
#define VE_SYSREGS_BASE		0x1c010000
#define V2M_SYS_ID			0x0
#define V2M_SYS_LED			0x8
#define V2M_SYS_CFGDATA		0xa0
#define V2M_SYS_CFGCTRL		0xa4

/*
 * V2M sysled bit definitions. The values written to this
 * register are defined in arch.h & runtime_svc.h. Only
 * used by the primary cpu to diagnose any cold boot issues.
 *
 * SYS_LED[0]   - Security state (S=0/NS=1)
 * SYS_LED[2:1] - Exception Level (EL3-EL0)
 * SYS_LED[7:3] - Exception Class (Sync/Async & origin)
 *
 */
#define SYS_LED_SS_SHIFT		0x0
#define SYS_LED_EL_SHIFT		0x1
#define SYS_LED_EC_SHIFT		0x3

#define SYS_LED_SS_MASK		0x1
#define SYS_LED_EL_MASK		0x3
#define SYS_LED_EC_MASK		0x1f

/* V2M sysid register bits */
#define SYS_ID_REV_SHIFT	27
#define SYS_ID_HBI_SHIFT	16
#define SYS_ID_BLD_SHIFT	12
#define SYS_ID_ARCH_SHIFT	8
#define SYS_ID_FPGA_SHIFT	0

#define SYS_ID_REV_MASK	0xf
#define SYS_ID_HBI_MASK	0xfff
#define SYS_ID_BLD_MASK	0xf
#define SYS_ID_ARCH_MASK	0xf
#define SYS_ID_FPGA_MASK	0xff

#define SYS_ID_BLD_LENGTH	4

#define REV_FVP		0x0
#define HBI_FVP_BASE		0x020
#define HBI_FOUNDATION		0x010

#define BLD_GIC_VE_MMAP	0x0
#define BLD_GIC_A53A57_MMAP	0x1

#define ARCH_MODEL		0x1

/* FVP Power controller base address*/
#define PWRC_BASE		0x1c100000

/*******************************************************************************
 * Platform specific per affinity states. Distinction between off and suspend
 * is made to allow reporting of a suspended cpu as still being on e.g. in the
 * affinity_info psci call.
 ******************************************************************************/
#define PLATFORM_MAX_AFF0	4
#define PLATFORM_MAX_AFF1	2
#define PLAT_AFF_UNK		0xff

#define PLAT_AFF0_OFF		0x0
#define PLAT_AFF0_ONPENDING	0x1
#define PLAT_AFF0_SUSPEND	0x2
#define PLAT_AFF0_ON		0x3

#define PLAT_AFF1_OFF		0x0
#define PLAT_AFF1_ONPENDING	0x1
#define PLAT_AFF1_SUSPEND	0x2
#define PLAT_AFF1_ON		0x3

/*******************************************************************************
 * BL2 specific defines.
 ******************************************************************************/
#define BL2_BASE			0x0402D000

/*******************************************************************************
 * BL31 specific defines.
 ******************************************************************************/
#define BL31_BASE			0x0400C000

/*******************************************************************************
 * BL32 specific defines.
 ******************************************************************************/
#define BL32_BASE			(TZDRAM_BASE + 0x2000)

/*******************************************************************************
 * Platform specific page table and MMU setup constants
 ******************************************************************************/
#define ADDR_SPACE_SIZE			(1ull << 32)
#define MAX_XLAT_TABLES			3
#define MAX_MMAP_REGIONS		16


/*******************************************************************************
 * CCI-400 related constants
 ******************************************************************************/
#define CCI400_BASE			0x2c090000
#define CCI400_SL_IFACE_CLUSTER0	3
#define CCI400_SL_IFACE_CLUSTER1	4
#define CCI400_SL_IFACE_INDEX(mpidr)	(mpidr & MPIDR_CLUSTER_MASK ? \
					 CCI400_SL_IFACE_CLUSTER1 :   \
					 CCI400_SL_IFACE_CLUSTER0)

/*******************************************************************************
 * GIC-400 & interrupt handling related constants
 ******************************************************************************/
/* VE compatible GIC memory map */
#define VE_GICD_BASE			0x2c001000
#define VE_GICC_BASE			0x2c002000
#define VE_GICH_BASE			0x2c004000
#define VE_GICV_BASE			0x2c006000

/* Base FVP compatible GIC memory map */
#define BASE_GICD_BASE			0x2f000000
#define BASE_GICR_BASE			0x2f100000
#define BASE_GICC_BASE			0x2c000000
#define BASE_GICH_BASE			0x2c010000
#define BASE_GICV_BASE			0x2c02f000

#define IRQ_TZ_WDOG			56
#define IRQ_SEC_PHY_TIMER		29
#define IRQ_SEC_SGI_0			8
#define IRQ_SEC_SGI_1			9
#define IRQ_SEC_SGI_2			10
#define IRQ_SEC_SGI_3			11
#define IRQ_SEC_SGI_4			12
#define IRQ_SEC_SGI_5			13
#define IRQ_SEC_SGI_6			14
#define IRQ_SEC_SGI_7			15
#define IRQ_SEC_SGI_8			16

/*******************************************************************************
 * PL011 related constants
 ******************************************************************************/
#define PL011_UART0_BASE		0x1c090000
#define PL011_UART1_BASE		0x1c0a0000
#define PL011_UART2_BASE		0x1c0b0000
#define PL011_UART3_BASE		0x1c0c0000


/*******************************************************************************
 * TrustZone address space controller related constants
 ******************************************************************************/
#define TZC400_BASE			0x2a4a0000

/*
 * The NSAIDs for this platform as used to program the TZC400.
 */

/* The FVP has 4 bits of NSAIDs. Used with TZC FAIL_ID (ACE Lite ID width) */
#define FVP_AID_WIDTH			4

/* NSAIDs used by devices in TZC filter 0 on FVP */
#define FVP_NSAID_DEFAULT		0
#define FVP_NSAID_PCI			1
#define FVP_NSAID_VIRTIO		8  /* from FVP v5.6 onwards */
#define FVP_NSAID_AP			9  /* Application Processors */
#define FVP_NSAID_VIRTIO_OLD		15 /* until FVP v5.5 */

/* NSAIDs used by devices in TZC filter 2 on FVP */
#define FVP_NSAID_HDLCD0		2
#define FVP_NSAID_CLCD			7


/*******************************************************************************
 * Declarations and constants to access the mailboxes safely. Each mailbox is
 * aligned on the biggest cache line size in the platform. This is known only
 * to the platform as it might have a combination of integrated and external
 * caches. Such alignment ensures that two maiboxes do not sit on the same cache
 * line at any cache level. They could belong to different cpus/clusters &
 * get written while being protected by different locks causing corruption of
 * a valid mailbox address.
 ******************************************************************************/
#define CACHE_WRITEBACK_SHIFT   6
#define CACHE_WRITEBACK_GRANULE (1 << CACHE_WRITEBACK_SHIFT)

#ifndef __ASSEMBLY__

#include <stdint.h>


typedef volatile struct mailbox {
	unsigned long value
	__attribute__((__aligned__(CACHE_WRITEBACK_GRANULE)));
} mailbox_t;

/*******************************************************************************
 * Forward declarations
 ******************************************************************************/
struct plat_pm_ops;
struct meminfo;

/*******************************************************************************
 * Function and variable prototypes
 ******************************************************************************/
extern unsigned long *bl1_normal_ram_base;
extern unsigned long *bl1_normal_ram_len;
extern unsigned long *bl1_normal_ram_limit;
extern unsigned long *bl1_normal_ram_zi_base;
extern unsigned long *bl1_normal_ram_zi_len;

extern unsigned long *bl1_coherent_ram_base;
extern unsigned long *bl1_coherent_ram_len;
extern unsigned long *bl1_coherent_ram_limit;
extern unsigned long *bl1_coherent_ram_zi_base;
extern unsigned long *bl1_coherent_ram_zi_len;
extern unsigned long warm_boot_entrypoint;

extern void bl1_plat_arch_setup(void);
extern void bl2_plat_arch_setup(void);
extern void bl31_plat_arch_setup(void);
extern int platform_setup_pm(const struct plat_pm_ops **);
extern unsigned int platform_get_core_pos(unsigned long mpidr);
extern void enable_mmu_el1(void);
extern void enable_mmu_el3(void);
extern void configure_mmu_el1(struct meminfo *mem_layout,
			      unsigned long ro_start,
			      unsigned long ro_limit,
			      unsigned long coh_start,
			      unsigned long coh_limit);
extern void configure_mmu_el3(struct meminfo *mem_layout,
			      unsigned long ro_start,
			      unsigned long ro_limit,
			      unsigned long coh_start,
			      unsigned long coh_limit);
extern unsigned long platform_get_cfgvar(unsigned int);
extern int platform_config_setup(void);
extern void plat_report_exception(unsigned long);
extern unsigned long plat_get_ns_image_entrypoint(void);
extern unsigned long platform_get_stack(unsigned long mpidr);
extern uint64_t plat_get_syscnt_freq(void);

/* Declarations for fvp_gic.c */
extern void gic_cpuif_deactivate(unsigned int);
extern void gic_cpuif_setup(unsigned int);
extern void gic_pcpu_distif_setup(unsigned int);
extern void gic_setup(void);
extern uint32_t plat_interrupt_type_to_line(uint32_t type,
					    uint32_t security_state);

/* Declarations for fvp_topology.c */
extern int plat_setup_topology(void);
extern int plat_get_max_afflvl(void);
extern unsigned int plat_get_aff_count(unsigned int, unsigned long);
extern unsigned int plat_get_aff_state(unsigned int, unsigned long);

/* Declarations for plat_io_storage.c */
extern void io_setup(void);
extern int plat_get_image_source(const char *image_name,
		uintptr_t *dev_handle, uintptr_t *image_spec);

/* Declarations for plat_security.c */
extern void plat_security_setup(void);


#endif /*__ASSEMBLY__*/

#endif /* __PLATFORM_H__ */