diff options
author | David Daney <david.daney@cavium.com> | 2011-11-22 14:47:00 +0000 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2011-12-07 22:03:28 +0000 |
commit | af866496c7752d2c0bd97fcbb4627cac72aa9a64 (patch) | |
tree | 21611d769d7b84933e1d606cd26fccd3b5659f35 /arch/mips/include/asm/octeon/cvmx-scratch.h | |
parent | 751c9f684963d2a066a79d8022c0e79e1159291b (diff) |
MIPS: Octeon: Move some Ethernet support files out of staging.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: netdev@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Patchwork: https://patchwork.linux-mips.org/patch/2942/
Patchwork: https://patchwork.linux-mips.org/patch/3012/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/octeon/cvmx-scratch.h')
-rw-r--r-- | arch/mips/include/asm/octeon/cvmx-scratch.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/cvmx-scratch.h b/arch/mips/include/asm/octeon/cvmx-scratch.h new file mode 100644 index 000000000000..96b70cfd6245 --- /dev/null +++ b/arch/mips/include/asm/octeon/cvmx-scratch.h @@ -0,0 +1,139 @@ +/***********************license start*************** + * Author: Cavium Networks + * + * Contact: support@caviumnetworks.com + * This file is part of the OCTEON SDK + * + * Copyright (c) 2003-2008 Cavium Networks + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, Version 2, as + * published by the Free Software Foundation. + * + * This file is distributed in the hope that it will be useful, but + * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or + * NONINFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * or visit http://www.gnu.org/licenses/. + * + * This file may also be available under a different license from Cavium. + * Contact Cavium Networks for more information + ***********************license end**************************************/ + +/** + * + * This file provides support for the processor local scratch memory. + * Scratch memory is byte addressable - all addresses are byte addresses. + * + */ + +#ifndef __CVMX_SCRATCH_H__ +#define __CVMX_SCRATCH_H__ + +/* + * Note: This define must be a long, not a long long in order to + * compile without warnings for both 32bit and 64bit. + */ +#define CVMX_SCRATCH_BASE (-32768l) /* 0xffffffffffff8000 */ + +/** + * Reads an 8 bit value from the processor local scratchpad memory. + * + * @address: byte address to read from + * + * Returns value read + */ +static inline uint8_t cvmx_scratch_read8(uint64_t address) +{ + return *CASTPTR(volatile uint8_t, CVMX_SCRATCH_BASE + address); +} + +/** + * Reads a 16 bit value from the processor local scratchpad memory. + * + * @address: byte address to read from + * + * Returns value read + */ +static inline uint16_t cvmx_scratch_read16(uint64_t address) +{ + return *CASTPTR(volatile uint16_t, CVMX_SCRATCH_BASE + address); +} + +/** + * Reads a 32 bit value from the processor local scratchpad memory. + * + * @address: byte address to read from + * + * Returns value read + */ +static inline uint32_t cvmx_scratch_read32(uint64_t address) +{ + return *CASTPTR(volatile uint32_t, CVMX_SCRATCH_BASE + address); +} + +/** + * Reads a 64 bit value from the processor local scratchpad memory. + * + * @address: byte address to read from + * + * Returns value read + */ +static inline uint64_t cvmx_scratch_read64(uint64_t address) +{ + return *CASTPTR(volatile uint64_t, CVMX_SCRATCH_BASE + address); +} + +/** + * Writes an 8 bit value to the processor local scratchpad memory. + * + * @address: byte address to write to + * @value: value to write + */ +static inline void cvmx_scratch_write8(uint64_t address, uint64_t value) +{ + *CASTPTR(volatile uint8_t, CVMX_SCRATCH_BASE + address) = + (uint8_t) value; +} + +/** + * Writes a 32 bit value to the processor local scratchpad memory. + * + * @address: byte address to write to + * @value: value to write + */ +static inline void cvmx_scratch_write16(uint64_t address, uint64_t value) +{ + *CASTPTR(volatile uint16_t, CVMX_SCRATCH_BASE + address) = + (uint16_t) value; +} + +/** + * Writes a 16 bit value to the processor local scratchpad memory. + * + * @address: byte address to write to + * @value: value to write + */ +static inline void cvmx_scratch_write32(uint64_t address, uint64_t value) +{ + *CASTPTR(volatile uint32_t, CVMX_SCRATCH_BASE + address) = + (uint32_t) value; +} + +/** + * Writes a 64 bit value to the processor local scratchpad memory. + * + * @address: byte address to write to + * @value: value to write + */ +static inline void cvmx_scratch_write64(uint64_t address, uint64_t value) +{ + *CASTPTR(volatile uint64_t, CVMX_SCRATCH_BASE + address) = value; +} + +#endif /* __CVMX_SCRATCH_H__ */ |