diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-08-14 14:58:01 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-08-14 14:58:01 +0200 |
commit | 51ca3c679194e7435c25b8e77b0a73c597e41ae9 (patch) | |
tree | a681dca369607ab0f371d5246b0f75140b860a8a /arch/powerpc/include/asm/dcr-mmio.h | |
parent | b55793f7528ce1b73c25b3ac8a86a6cda2a0f9a4 (diff) | |
parent | b635acec48bcaa9183fcbf4e3955616b0d4119b5 (diff) |
Merge branch 'linus' into x86/core
Conflicts:
arch/x86/kernel/genapic_64.c
include/asm-x86/kvm_host.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/include/asm/dcr-mmio.h')
-rw-r--r-- | arch/powerpc/include/asm/dcr-mmio.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/dcr-mmio.h b/arch/powerpc/include/asm/dcr-mmio.h new file mode 100644 index 00000000000..acd491dbd45 --- /dev/null +++ b/arch/powerpc/include/asm/dcr-mmio.h @@ -0,0 +1,61 @@ +/* + * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. + * <benh@kernel.crashing.org> + * + * 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 2 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _ASM_POWERPC_DCR_MMIO_H +#define _ASM_POWERPC_DCR_MMIO_H +#ifdef __KERNEL__ + +#include <asm/io.h> + +typedef struct { + void __iomem *token; + unsigned int stride; + unsigned int base; +} dcr_host_mmio_t; + +static inline bool dcr_map_ok_mmio(dcr_host_mmio_t host) +{ + return host.token != NULL; +} + +extern dcr_host_mmio_t dcr_map_mmio(struct device_node *dev, + unsigned int dcr_n, + unsigned int dcr_c); +extern void dcr_unmap_mmio(dcr_host_mmio_t host, unsigned int dcr_c); + +static inline u32 dcr_read_mmio(dcr_host_mmio_t host, unsigned int dcr_n) +{ + return in_be32(host.token + ((host.base + dcr_n) * host.stride)); +} + +static inline void dcr_write_mmio(dcr_host_mmio_t host, + unsigned int dcr_n, + u32 value) +{ + out_be32(host.token + ((host.base + dcr_n) * host.stride), value); +} + +extern u64 of_translate_dcr_address(struct device_node *dev, + unsigned int dcr_n, + unsigned int *stride); + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_DCR_MMIO_H */ + + |