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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/alpha/include/asm/core_polaris.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/alpha/include/asm/core_polaris.h')
-rw-r--r-- | kernel/arch/alpha/include/asm/core_polaris.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/kernel/arch/alpha/include/asm/core_polaris.h b/kernel/arch/alpha/include/asm/core_polaris.h new file mode 100644 index 000000000..2f966b646 --- /dev/null +++ b/kernel/arch/alpha/include/asm/core_polaris.h @@ -0,0 +1,110 @@ +#ifndef __ALPHA_POLARIS__H__ +#define __ALPHA_POLARIS__H__ + +#include <linux/types.h> +#include <asm/compiler.h> + +/* + * POLARIS is the internal name for a core logic chipset which provides + * memory controller and PCI access for the 21164PC chip based systems. + * + * This file is based on: + * + * Polaris System Controller + * Device Functional Specification + * 22-Jan-98 + * Rev. 4.2 + * + */ + +/* Polaris memory regions */ +#define POLARIS_SPARSE_MEM_BASE (IDENT_ADDR + 0xf800000000UL) +#define POLARIS_DENSE_MEM_BASE (IDENT_ADDR + 0xf900000000UL) +#define POLARIS_SPARSE_IO_BASE (IDENT_ADDR + 0xf980000000UL) +#define POLARIS_SPARSE_CONFIG_BASE (IDENT_ADDR + 0xf9c0000000UL) +#define POLARIS_IACK_BASE (IDENT_ADDR + 0xf9f8000000UL) +#define POLARIS_DENSE_IO_BASE (IDENT_ADDR + 0xf9fc000000UL) +#define POLARIS_DENSE_CONFIG_BASE (IDENT_ADDR + 0xf9fe000000UL) + +#define POLARIS_IACK_SC POLARIS_IACK_BASE + +/* The Polaris command/status registers live in PCI Config space for + * bus 0/device 0. As such, they may be bytes, words, or doublewords. + */ +#define POLARIS_W_VENID (POLARIS_DENSE_CONFIG_BASE) +#define POLARIS_W_DEVID (POLARIS_DENSE_CONFIG_BASE+2) +#define POLARIS_W_CMD (POLARIS_DENSE_CONFIG_BASE+4) +#define POLARIS_W_STATUS (POLARIS_DENSE_CONFIG_BASE+6) + +/* + * Data structure for handling POLARIS machine checks: + */ +struct el_POLARIS_sysdata_mcheck { + u_long psc_status; + u_long psc_pcictl0; + u_long psc_pcictl1; + u_long psc_pcictl2; +}; + +#ifdef __KERNEL__ + +#ifndef __EXTERN_INLINE +#define __EXTERN_INLINE extern inline +#define __IO_EXTERN_INLINE +#endif + +/* + * I/O functions: + * + * POLARIS, the PCI/memory support chipset for the PCA56 (21164PC) + * processors, can use either a sparse address mapping scheme, or the + * so-called byte-word PCI address space, to get at PCI memory and I/O. + * + * However, we will support only the BWX form. + */ + +/* + * Memory functions. Polaris allows all accesses (byte/word + * as well as long/quad) to be done through dense space. + * + * We will only support DENSE access via BWX insns. + */ + +__EXTERN_INLINE void __iomem *polaris_ioportmap(unsigned long addr) +{ + return (void __iomem *)(addr + POLARIS_DENSE_IO_BASE); +} + +__EXTERN_INLINE void __iomem *polaris_ioremap(unsigned long addr, + unsigned long size) +{ + return (void __iomem *)(addr + POLARIS_DENSE_MEM_BASE); +} + +__EXTERN_INLINE int polaris_is_ioaddr(unsigned long addr) +{ + return addr >= POLARIS_SPARSE_MEM_BASE; +} + +__EXTERN_INLINE int polaris_is_mmio(const volatile void __iomem *addr) +{ + return (unsigned long)addr < POLARIS_SPARSE_IO_BASE; +} + +#undef __IO_PREFIX +#define __IO_PREFIX polaris +#define polaris_trivial_rw_bw 1 +#define polaris_trivial_rw_lq 1 +#define polaris_trivial_io_bw 1 +#define polaris_trivial_io_lq 1 +#define polaris_trivial_iounmap 1 +#include <asm/io_trivial.h> + +#ifdef __IO_EXTERN_INLINE +#undef __EXTERN_INLINE +#undef __IO_EXTERN_INLINE +#endif + +#endif /* __KERNEL__ */ + +#endif /* __ALPHA_POLARIS__H__ */ |