linux_dsm_epyc7002/arch/mips/include/asm/module.h
Serge Semin 281e3aea35 mips: Add MIPS Warrior P5600 support
This is a MIPS32 Release 5 based IP core with XPA, EVA, dual/quad issue
exec pipes, MMU with two-levels TLB, UCA, MSA, MDU core level features
and system level features like up to six P5600 calculation cores, CM2
with L2 cache, IOCU/IOMMU (though might be unused depending on the
system-specific IP core configuration), GIC, CPC, virtualisation module,
eJTAG and PDtrace.

As being MIPS32 Release 5 based core it provides all the features
available by the CPU_MIPS32_R5 config, while adding a few more like
UCA attribute support, availability of CPU-freq (by means of L2/CM
clock ratio setting), EI/VI GIC modes detection at runtime.

In addition to this if P5600 architecture is enabled modern GNU GCC
provides a specific tuning for P5600 processors with respect to the
classic MIPS32 Release 5. First of all branch-likely avoidance is
activated only when the code is compiled with the speed optimization
(avoidance is always enabled for the pure MIPS32 Release 5
architecture). Secondly the madd/msub avoidance is enabled since
madd/msub utilization isn't profitable due to overhead of getting the
result out of the HI/LO registers. Multiply-accumulate instructions are
activated and utilized together with the necessary code reorder when
multiply-add/multiply-subtract statements are met. Finally load/store
bonding is activated by default. All of these optimizations may make
the code relatively faster than if just MIP32 release 5 architecture
was requested.

Co-developed-by: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Signed-off-by: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-05-22 09:10:53 +02:00

154 lines
4.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_MODULE_H
#define _ASM_MODULE_H
#include <linux/list.h>
#include <linux/elf.h>
#include <asm/extable.h>
struct mod_arch_specific {
/* Data Bus Error exception tables */
struct list_head dbe_list;
const struct exception_table_entry *dbe_start;
const struct exception_table_entry *dbe_end;
struct mips_hi16 *r_mips_hi16_list;
};
typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
typedef struct {
Elf64_Addr r_offset; /* Address of relocation. */
Elf64_Word r_sym; /* Symbol index. */
Elf64_Byte r_ssym; /* Special symbol. */
Elf64_Byte r_type3; /* Third relocation. */
Elf64_Byte r_type2; /* Second relocation. */
Elf64_Byte r_type; /* First relocation. */
} Elf64_Mips_Rel;
typedef struct {
Elf64_Addr r_offset; /* Address of relocation. */
Elf64_Word r_sym; /* Symbol index. */
Elf64_Byte r_ssym; /* Special symbol. */
Elf64_Byte r_type3; /* Third relocation. */
Elf64_Byte r_type2; /* Second relocation. */
Elf64_Byte r_type; /* First relocation. */
Elf64_Sxword r_addend; /* Addend. */
} Elf64_Mips_Rela;
#ifdef CONFIG_32BIT
#define Elf_Shdr Elf32_Shdr
#define Elf_Sym Elf32_Sym
#define Elf_Ehdr Elf32_Ehdr
#define Elf_Addr Elf32_Addr
#define Elf_Rel Elf32_Rel
#define Elf_Rela Elf32_Rela
#define ELF_R_TYPE(X) ELF32_R_TYPE(X)
#define ELF_R_SYM(X) ELF32_R_SYM(X)
#define Elf_Mips_Rel Elf32_Rel
#define Elf_Mips_Rela Elf32_Rela
#define ELF_MIPS_R_SYM(rel) ELF32_R_SYM((rel).r_info)
#define ELF_MIPS_R_TYPE(rel) ELF32_R_TYPE((rel).r_info)
#endif
#ifdef CONFIG_64BIT
#define Elf_Shdr Elf64_Shdr
#define Elf_Sym Elf64_Sym
#define Elf_Ehdr Elf64_Ehdr
#define Elf_Addr Elf64_Addr
#define Elf_Rel Elf64_Rel
#define Elf_Rela Elf64_Rela
#define ELF_R_TYPE(X) ELF64_R_TYPE(X)
#define ELF_R_SYM(X) ELF64_R_SYM(X)
#define Elf_Mips_Rel Elf64_Mips_Rel
#define Elf_Mips_Rela Elf64_Mips_Rela
#define ELF_MIPS_R_SYM(rel) ((rel).r_sym)
#define ELF_MIPS_R_TYPE(rel) ((rel).r_type)
#endif
#ifdef CONFIG_MODULES
/* Given an address, look for it in the exception tables. */
const struct exception_table_entry*search_module_dbetables(unsigned long addr);
#else
/* Given an address, look for it in the exception tables. */
static inline const struct exception_table_entry *
search_module_dbetables(unsigned long addr)
{
return NULL;
}
#endif
#ifdef CONFIG_CPU_BMIPS
#define MODULE_PROC_FAMILY "BMIPS "
#elif defined CONFIG_CPU_MIPS32_R1
#define MODULE_PROC_FAMILY "MIPS32_R1 "
#elif defined CONFIG_CPU_MIPS32_R2
#define MODULE_PROC_FAMILY "MIPS32_R2 "
#elif defined CONFIG_CPU_MIPS32_R5
#define MODULE_PROC_FAMILY "MIPS32_R5 "
#elif defined CONFIG_CPU_MIPS32_R6
#define MODULE_PROC_FAMILY "MIPS32_R6 "
#elif defined CONFIG_CPU_MIPS64_R1
#define MODULE_PROC_FAMILY "MIPS64_R1 "
#elif defined CONFIG_CPU_MIPS64_R2
#define MODULE_PROC_FAMILY "MIPS64_R2 "
#elif defined CONFIG_CPU_MIPS64_R5
#define MODULE_PROC_FAMILY "MIPS64_R5 "
#elif defined CONFIG_CPU_MIPS64_R6
#define MODULE_PROC_FAMILY "MIPS64_R6 "
#elif defined CONFIG_CPU_R3000
#define MODULE_PROC_FAMILY "R3000 "
#elif defined CONFIG_CPU_TX39XX
#define MODULE_PROC_FAMILY "TX39XX "
#elif defined CONFIG_CPU_VR41XX
#define MODULE_PROC_FAMILY "VR41XX "
#elif defined CONFIG_CPU_R4X00
#define MODULE_PROC_FAMILY "R4X00 "
#elif defined CONFIG_CPU_TX49XX
#define MODULE_PROC_FAMILY "TX49XX "
#elif defined CONFIG_CPU_R5000
#define MODULE_PROC_FAMILY "R5000 "
#elif defined CONFIG_CPU_R5500
#define MODULE_PROC_FAMILY "R5500 "
#elif defined CONFIG_CPU_NEVADA
#define MODULE_PROC_FAMILY "NEVADA "
#elif defined CONFIG_CPU_R10000
#define MODULE_PROC_FAMILY "R10000 "
#elif defined CONFIG_CPU_RM7000
#define MODULE_PROC_FAMILY "RM7000 "
#elif defined CONFIG_CPU_SB1
#define MODULE_PROC_FAMILY "SB1 "
#elif defined CONFIG_CPU_LOONGSON32
#define MODULE_PROC_FAMILY "LOONGSON32 "
#elif defined CONFIG_CPU_LOONGSON2EF
#define MODULE_PROC_FAMILY "LOONGSON2EF "
#elif defined CONFIG_CPU_LOONGSON64
#define MODULE_PROC_FAMILY "LOONGSON64 "
#elif defined CONFIG_CPU_CAVIUM_OCTEON
#define MODULE_PROC_FAMILY "OCTEON "
#elif defined CONFIG_CPU_P5600
#define MODULE_PROC_FAMILY "P5600 "
#elif defined CONFIG_CPU_XLR
#define MODULE_PROC_FAMILY "XLR "
#elif defined CONFIG_CPU_XLP
#define MODULE_PROC_FAMILY "XLP "
#else
#error MODULE_PROC_FAMILY undefined for your processor configuration
#endif
#ifdef CONFIG_32BIT
#define MODULE_KERNEL_TYPE "32BIT "
#elif defined CONFIG_64BIT
#define MODULE_KERNEL_TYPE "64BIT "
#endif
#define MODULE_ARCH_VERMAGIC \
MODULE_PROC_FAMILY MODULE_KERNEL_TYPE
#endif /* _ASM_MODULE_H */