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/* NFP ELF support for BFD.
Copyright (C) 2017-2021 Free Software Foundation, Inc.
Contributed by Francois H. Theron <francois.theron@netronome.com>
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _ELF_NFP_H
#define _ELF_NFP_H
#include "bfd.h"
#include "elf/common.h"
#include "elf/reloc-macros.h"
#include <stdint.h>
#ifdef __cplusplus
extern "C"
{
#endif
#define ET_NFP_PARTIAL_REL (ET_LOPROC + ET_REL)
#define ET_NFP_PARTIAL_EXEC (ET_LOPROC + ET_EXEC)
/* NFP e_flags - chip family
Valid values for FAMILY are:
0x3200 - NFP-32xx
0x6000 - NFP-6xxx/NFP-4xxx. */
#define EF_NFP_MACH(ef_nfp) (((ef_nfp) >> 8) & 0xFFFF)
#define EF_NFP_SET_MACH(nfp_fam) (((nfp_fam) & 0xFFFF) << 8)
#define E_NFP_MACH_3200 0x3200
#define E_NFP_MACH_6000 0x6000
#define NFP_3200_CPPTGT_MSF0 1
#define NFP_3200_CPPTGT_QDR 2
#define NFP_3200_CPPTGT_MSF1 3
#define NFP_3200_CPPTGT_HASH 4
#define NFP_3200_CPPTGT_MU 7
#define NFP_3200_CPPTGT_GS 8
#define NFP_3200_CPPTGT_PCIE 9
#define NFP_3200_CPPTGT_ARM 10
#define NFP_3200_CPPTGT_CRYPTO 12
#define NFP_3200_CPPTGT_CAP 13
#define NFP_3200_CPPTGT_CT 14
#define NFP_3200_CPPTGT_CLS 15
#define NFP_6000_CPPTGT_NBI 1
#define NFP_6000_CPPTGT_VQDR 2
#define NFP_6000_CPPTGT_ILA 6
#define NFP_6000_CPPTGT_MU 7
#define NFP_6000_CPPTGT_PCIE 9
#define NFP_6000_CPPTGT_ARM 10
#define NFP_6000_CPPTGT_CRYPTO 12
#define NFP_6000_CPPTGT_CTXPB 14
#define NFP_6000_CPPTGT_CLS 15
/* NFP Section types
MECONFIG - NFP-32xx only, ME CSR configurations
INITREG - A generic register initialisation section (chip or ME CSRs/GPRs)
UDEBUG - Legacy-style debug data section. */
#define SHT_NFP_MECONFIG (SHT_LOPROC + 1)
#define SHT_NFP_INITREG (SHT_LOPROC + 2)
#define SHT_NFP_UDEBUG SHT_LOUSER
/* NFP SECTION flags
ELF-64 sh_flags is 64-bit, but there is no info on what the upper 32 bits
are expected to be used for, it is not marked reserved either.
We'll use them for NFP-specific flags since we don't use ELF-32.
INIT - Sections that are loaded and executed before the final text
microcode. Non-code INIT sections are loaded first, then other
memory secions, then INIT2 sections, then INIT-code sections.
INIT2 - Sections that are loaded before INIT-code sections, used for
transient configuration before executing INIT-code section
microcode.
SCS - The number of additional ME codestores being shared with the group's
base ME of the section, e.g. 0 for no SCS, 1 for dual and 3 for
quad. If this is 0 it is possible that stagger-style SCS codestore
sections are being used. For stagger-style each section is simply
loaded directly to the ME it is assigned to. If these flags are
used, virtual address space loading will be used - one large section
loaded to the group's base ME will be packed across shared MEs by
hardware. This is not available on all ME versions.
NFP_ELF_SHF_GET_SCS (val) returns the number of additional codestores
being shared with the group's base ME, e.g. 0 for no SCS,
1 for dual SCS, 3 for quad SCS. */
#define SHF_NFP_INIT 0x80000000
#define SHF_NFP_INIT2 0x40000000
#define SHF_NFP_SCS(shf) (((shf) >> 32) & 0xFF)
#define SHF_NFP_SET_SCS(v) (((BFD_HOST_U_64_BIT)((v) & 0xFF)) << 32)
/* NFP Section Info
For PROGBITS and NOBITS sections:
MEMTYPE - the memory type
DOMAIN - The island ID and ME number where the data will be loaded.
For NFP-32xx, this is an island number or linear ME number.
For NFP-6xxx, DOMAIN<15:8> == island ID, DOMAIN<7:0> is 0 based
ME number (if applicable).
For INITREG sections:
ISLAND - island ID (if it's a ME target, ME numbers are in the
section data)
CPPTGT - CPP Target ID
CPPACTRD - CPP Read Action
CPPTOKRD - CPP Read Token
CPPACTWR - CPP Write Action
CPPTOKWR - CPP Write Token
ORDER - Controls the order in which the loader processes sections with
the same info fields. */
#define SHI_NFP_DOMAIN(shi) (((shi) >> 16) & 0xFFFF)
#define SHI_NFP_MEMTYPE(shi) ( (shi) & 0xFFFF)
#define SHI_NFP_SET_DOMAIN(v) (((v) & 0xFFFF) << 16)
#define SHI_NFP_SET_MEMTYPE(v) ( (v) & 0xFFFF)
#define SHI_NFP_IREG_ISLAND(shi) (((shi) >> 26) & 0x3F)
#define SHI_NFP_IREG_CPPTGT(shi) (((shi) >> 22) & 0xF)
#define SHI_NFP_IREG_CPPACTRD(shi) (((shi) >> 17) & 0x1F)
#define SHI_NFP_IREG_CPPTOKRD(shi) (((shi) >> 15) & 0x3)
#define SHI_NFP_IREG_CPPACTWR(shi) (((shi) >> 10) & 0x1F)
#define SHI_NFP_IREG_CPPTOKWR(shi) (((shi) >> 8) & 0x3)
#define SHI_NFP_IREG_ORDER(shi) ( (shi) & 0xFF)
#define SHI_NFP_SET_IREG_ISLAND(v) (((v) & 0x3F) << 26)
#define SHI_NFP_SET_IREG_CPPTGT(v) (((v) & 0xF) << 22)
#define SHI_NFP_SET_IREG_CPPACTRD(v) (((v) & 0x1F) << 17)
#define SHI_NFP_SET_IREG_CPPTOKRD(v) (((v) & 0x3) << 15)
#define SHI_NFP_SET_IREG_CPPACTWR(v) (((v) & 0x1F) << 10)
#define SHI_NFP_SET_IREG_CPPTOKWR(v) (((v) & 0x3) << 8)
#define SHI_NFP_SET_IREG_ORDER(v) ( (v) & 0xFF)
/* CtXpb/reflect_read_sig_init/reflect_write_sig_init
identifies Init-CSR sections for ME CSRs. */
#define SHI_NFP_6000_IS_IREG_MECSR(shi) ( \
SHI_NFP_IREG_CPPTGT (shi) == NFP_6000_CPPTGT_CTXPB \
&& SHI_NFP_IREG_CPPACTRD (shi) == 2 \
&& SHI_NFP_IREG_CPPTOKRD (shi) == 1 \
&& SHI_NFP_IREG_CPPACTWR (shi) == 3 \
&& SHI_NFP_IREG_CPPTOKWR (shi) == 1 \
)
/* Transient INITREG sections will be validated against the target
but will not be kept - validate, write or read and discard.
They will still be handled last (in order). */
#define SHI_NFP_IREG_ORDER_TRANSIENT 0xFF
/* Below are some extra macros to translate SHI fields in more specific
contexts.
For NFP-32xx, DOMAIN is set to a global linear ME number (0 to 39).
An NFP-32xx has 8 MEs per island and up to 5 islands. */
#define SHI_NFP_3200_ISLAND(shi) ((SHI_NFP_DOMAIN (shi) >> 3) & 0x7)
#define SHI_NFP_3200_MENUM(shi) ( SHI_NFP_DOMAIN (shi) & 0x7)
#define SHI_NFP_SET_3200_ISLAND(v) SHI_NFP_SET_DOMAIN (((v) & 0x7) << 3)
#define SHI_NFP_SET_3200_MENUM(v) SHI_NFP_SET_DOMAIN ( (v) & 0x7)
#define SHI_NFP_ISLAND(shi) ((SHI_NFP_DOMAIN (shi) >> 8) & 0xFF)
#define SHI_NFP_MENUM(shi) ( SHI_NFP_DOMAIN (shi) & 0xFF)
#define SHI_NFP_SET_ISLAND(shi) SHI_NFP_SET_DOMAIN (((shi) & 0xFF) << 8)
#define SHI_NFP_SET_MENUM(shi) SHI_NFP_SET_DOMAIN ( (shi) & 0xFF)
#define SHI_NFP_MEMTYPE_NONE 0
#define SHI_NFP_MEMTYPE_USTORE 1
#define SHI_NFP_MEMTYPE_LMEM 2
#define SHI_NFP_MEMTYPE_CLS 3
#define SHI_NFP_MEMTYPE_DRAM 4
#define SHI_NFP_MEMTYPE_MU 4
#define SHI_NFP_MEMTYPE_SRAM 5
#define SHI_NFP_MEMTYPE_GS 6
#define SHI_NFP_MEMTYPE_PPC_LMEM 7
#define SHI_NFP_MEMTYPE_PPC_SMEM 8
#define SHI_NFP_MEMTYPE_EMU_CACHE 9
/* VTP_FORCE is for use by the NFP Linker+Loader only. */
#define NFP_IREG_VTP_FORCE 0
#define NFP_IREG_VTP_CONST 1
#define NFP_IREG_VTP_REQUIRED 2
#define NFP_IREG_VTP_VOLATILE_INIT 3
#define NFP_IREG_VTP_VOLATILE_NOINIT 4
#define NFP_IREG_VTP_INVALID 5
/* Init-CSR entry w0 fields:
NLW - Not Last Word
CTX - ME context number (if applicable)
VTP - Value type
COH - CPP Offset High 8 bits. */
#define NFP_IREG_ENTRY_WO_NLW(w0) (((w0) >> 31) & 0x1)
#define NFP_IREG_ENTRY_WO_CTX(w0) (((w0) >> 28) & 0x7)
#define NFP_IREG_ENTRY_WO_VTP(w0) (((w0) >> 25) & 0x7)
#define NFP_IREG_ENTRY_WO_COH(w0) (((w0) >> 0) & 0xFF)
typedef struct
{
uint32_t w0;
uint32_t cpp_offset_lo;
uint32_t val;
uint32_t mask;
} Elf_Nfp_InitRegEntry;
typedef struct
{
uint32_t ctx_enables;
uint32_t entry;
uint32_t misc_control;
uint32_t reserved;
} Elf_Nfp_MeConfig;
/* Relocations. */
START_RELOC_NUMBERS (elf_nfp3200_reloc_type)
RELOC_NUMBER (R_NFP3200_NOTYPE, 0)
RELOC_NUMBER (R_NFP3200_W32LE, 1)
RELOC_NUMBER (R_NFP3200_SRC8_A, 2)
RELOC_NUMBER (R_NFP3200_SRC8_B, 3)
RELOC_NUMBER (R_NFP3200_IMMED8_I, 4)
RELOC_NUMBER (R_NFP3200_SC, 5)
RELOC_NUMBER (R_NFP3200_IMMED_LO16_I_A, 6)
RELOC_NUMBER (R_NFP3200_IMMED_LO16_I_B, 7)
RELOC_NUMBER (R_NFP3200_SRC7_B, 8)
RELOC_NUMBER (R_NFP3200_SRC7_A, 9)
RELOC_NUMBER (R_NFP3200_SRC8_I_B, 10)
RELOC_NUMBER (R_NFP3200_SRC8_I_A, 11)
RELOC_NUMBER (R_NFP3200_IMMED_HI16_I_A, 12)
RELOC_NUMBER (R_NFP3200_IMMED_HI16_I_B, 13)
RELOC_NUMBER (R_NFP3200_RSVD_0, 14)
RELOC_NUMBER (R_NFP3200_RSVD_1, 15)
RELOC_NUMBER (R_NFP3200_RSVD_2, 16)
RELOC_NUMBER (R_NFP3200_RSVD_3, 17)
RELOC_NUMBER (R_NFP3200_RSVD_4, 18)
RELOC_NUMBER (R_NFP3200_RSVD_5, 19)
RELOC_NUMBER (R_NFP3200_RSVD_6, 20)
RELOC_NUMBER (R_NFP3200_W64LE, 21)
RELOC_NUMBER (R_NFP3200_W32BE, 22)
RELOC_NUMBER (R_NFP3200_W64BE, 23)
RELOC_NUMBER (R_NFP3200_W32LE_AND, 24)
RELOC_NUMBER (R_NFP3200_W32BE_AND, 25)
RELOC_NUMBER (R_NFP3200_W32LE_OR, 26)
RELOC_NUMBER (R_NFP3200_W32BE_OR, 27)
RELOC_NUMBER (R_NFP3200_W64LE_AND, 28)
RELOC_NUMBER (R_NFP3200_W64BE_AND, 29)
RELOC_NUMBER (R_NFP3200_W64LE_OR, 30)
RELOC_NUMBER (R_NFP3200_W64BE_OR, 31)
END_RELOC_NUMBERS (R_NFP3200_MAX)
START_RELOC_NUMBERS (elf_nfp_reloc_type)
RELOC_NUMBER (R_NFP_NOTYPE, 0)
RELOC_NUMBER (R_NFP_W32LE, 1)
RELOC_NUMBER (R_NFP_SRC8_A, 2)
RELOC_NUMBER (R_NFP_SRC8_B, 3)
RELOC_NUMBER (R_NFP_IMMED8_I, 4)
RELOC_NUMBER (R_NFP_SC, 5)
RELOC_NUMBER (R_NFP_IMMED_LO16_I_A, 6)
RELOC_NUMBER (R_NFP_IMMED_LO16_I_B, 7)
RELOC_NUMBER (R_NFP_SRC7_B, 8)
RELOC_NUMBER (R_NFP_SRC7_A, 9)
RELOC_NUMBER (R_NFP_SRC8_I_B, 10)
RELOC_NUMBER (R_NFP_SRC8_I_A, 11)
RELOC_NUMBER (R_NFP_IMMED_HI16_I_A, 12)
RELOC_NUMBER (R_NFP_IMMED_HI16_I_B, 13)
RELOC_NUMBER (R_NFP_W64LE, 14)
RELOC_NUMBER (R_NFP_SH_INFO, 15)
RELOC_NUMBER (R_NFP_W32BE, 16)
RELOC_NUMBER (R_NFP_W64BE, 17)
RELOC_NUMBER (R_NFP_W32_29_24, 18)
RELOC_NUMBER (R_NFP_W32LE_AND, 19)
RELOC_NUMBER (R_NFP_W32BE_AND, 20)
RELOC_NUMBER (R_NFP_W32LE_OR, 21)
RELOC_NUMBER (R_NFP_W32BE_OR, 22)
RELOC_NUMBER (R_NFP_W64LE_AND, 23)
RELOC_NUMBER (R_NFP_W64BE_AND, 24)
RELOC_NUMBER (R_NFP_W64LE_OR, 25)
RELOC_NUMBER (R_NFP_W64BE_OR, 26)
END_RELOC_NUMBERS (R_NFP_MAX)
#ifdef __cplusplus
}
#endif
#endif /* _ELF_NFP_H */
|
