summaryrefslogtreecommitdiffstats
path: root/arch/mips/include/asm/octeon/cvmx-address.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/include/asm/octeon/cvmx-address.h')
-rw-r--r--arch/mips/include/asm/octeon/cvmx-address.h274
1 files changed, 274 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/cvmx-address.h b/arch/mips/include/asm/octeon/cvmx-address.h
new file mode 100644
index 00000000000..3c74d826e2e
--- /dev/null
+++ b/arch/mips/include/asm/octeon/cvmx-address.h
@@ -0,0 +1,274 @@
+/***********************license start***************
+ * Author: Cavium Networks
+ *
+ * Contact: support@caviumnetworks.com
+ * This file is part of the OCTEON SDK
+ *
+ * Copyright (c) 2003-2009 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**************************************/
+
+/**
+ * Typedefs and defines for working with Octeon physical addresses.
+ *
+ */
+#ifndef __CVMX_ADDRESS_H__
+#define __CVMX_ADDRESS_H__
+
+#if 0
+typedef enum {
+ CVMX_MIPS_SPACE_XKSEG = 3LL,
+ CVMX_MIPS_SPACE_XKPHYS = 2LL,
+ CVMX_MIPS_SPACE_XSSEG = 1LL,
+ CVMX_MIPS_SPACE_XUSEG = 0LL
+} cvmx_mips_space_t;
+#endif
+
+typedef enum {
+ CVMX_MIPS_XKSEG_SPACE_KSEG0 = 0LL,
+ CVMX_MIPS_XKSEG_SPACE_KSEG1 = 1LL,
+ CVMX_MIPS_XKSEG_SPACE_SSEG = 2LL,
+ CVMX_MIPS_XKSEG_SPACE_KSEG3 = 3LL
+} cvmx_mips_xkseg_space_t;
+
+/* decodes <14:13> of a kseg3 window address */
+typedef enum {
+ CVMX_ADD_WIN_SCR = 0L,
+ /* see cvmx_add_win_dma_dec_t for further decode */
+ CVMX_ADD_WIN_DMA = 1L,
+ CVMX_ADD_WIN_UNUSED = 2L,
+ CVMX_ADD_WIN_UNUSED2 = 3L
+} cvmx_add_win_dec_t;
+
+/* decode within DMA space */
+typedef enum {
+ /*
+ * Add store data to the write buffer entry, allocating it if
+ * necessary.
+ */
+ CVMX_ADD_WIN_DMA_ADD = 0L,
+ /* send out the write buffer entry to DRAM */
+ CVMX_ADD_WIN_DMA_SENDMEM = 1L,
+ /* store data must be normal DRAM memory space address in this case */
+ /* send out the write buffer entry as an IOBDMA command */
+ CVMX_ADD_WIN_DMA_SENDDMA = 2L,
+ /* see CVMX_ADD_WIN_DMA_SEND_DEC for data contents */
+ /* send out the write buffer entry as an IO write */
+ CVMX_ADD_WIN_DMA_SENDIO = 3L,
+ /* store data must be normal IO space address in this case */
+ /* send out a single-tick command on the NCB bus */
+ CVMX_ADD_WIN_DMA_SENDSINGLE = 4L,
+ /* no write buffer data needed/used */
+} cvmx_add_win_dma_dec_t;
+
+/*
+ * Physical Address Decode
+ *
+ * Octeon-I HW never interprets this X (<39:36> reserved
+ * for future expansion), software should set to 0.
+ *
+ * - 0x0 XXX0 0000 0000 to DRAM Cached
+ * - 0x0 XXX0 0FFF FFFF
+ *
+ * - 0x0 XXX0 1000 0000 to Boot Bus Uncached (Converted to 0x1 00X0 1000 0000
+ * - 0x0 XXX0 1FFF FFFF + EJTAG to 0x1 00X0 1FFF FFFF)
+ *
+ * - 0x0 XXX0 2000 0000 to DRAM Cached
+ * - 0x0 XXXF FFFF FFFF
+ *
+ * - 0x1 00X0 0000 0000 to Boot Bus Uncached
+ * - 0x1 00XF FFFF FFFF
+ *
+ * - 0x1 01X0 0000 0000 to Other NCB Uncached
+ * - 0x1 FFXF FFFF FFFF devices
+ *
+ * Decode of all Octeon addresses
+ */
+typedef union {
+
+ uint64_t u64;
+ /* mapped or unmapped virtual address */
+ struct {
+ uint64_t R:2;
+ uint64_t offset:62;
+ } sva;
+
+ /* mapped USEG virtual addresses (typically) */
+ struct {
+ uint64_t zeroes:33;
+ uint64_t offset:31;
+ } suseg;
+
+ /* mapped or unmapped virtual address */
+ struct {
+ uint64_t ones:33;
+ uint64_t sp:2;
+ uint64_t offset:29;
+ } sxkseg;
+
+ /*
+ * physical address accessed through xkphys unmapped virtual
+ * address.
+ */
+ struct {
+ uint64_t R:2; /* CVMX_MIPS_SPACE_XKPHYS in this case */
+ uint64_t cca:3; /* ignored by octeon */
+ uint64_t mbz:10;
+ uint64_t pa:49; /* physical address */
+ } sxkphys;
+
+ /* physical address */
+ struct {
+ uint64_t mbz:15;
+ /* if set, the address is uncached and resides on MCB bus */
+ uint64_t is_io:1;
+ /*
+ * the hardware ignores this field when is_io==0, else
+ * device ID.
+ */
+ uint64_t did:8;
+ /* the hardware ignores <39:36> in Octeon I */
+ uint64_t unaddr:4;
+ uint64_t offset:36;
+ } sphys;
+
+ /* physical mem address */
+ struct {
+ /* techically, <47:40> are dont-cares */
+ uint64_t zeroes:24;
+ /* the hardware ignores <39:36> in Octeon I */
+ uint64_t unaddr:4;
+ uint64_t offset:36;
+ } smem;
+
+ /* physical IO address */
+ struct {
+ uint64_t mem_region:2;
+ uint64_t mbz:13;
+ /* 1 in this case */
+ uint64_t is_io:1;
+ /*
+ * The hardware ignores this field when is_io==0, else
+ * device ID.
+ */
+ uint64_t did:8;
+ /* the hardware ignores <39:36> in Octeon I */
+ uint64_t unaddr:4;
+ uint64_t offset:36;
+ } sio;
+
+ /*
+ * Scratchpad virtual address - accessed through a window at
+ * the end of kseg3
+ */
+ struct {
+ uint64_t ones:49;
+ /* CVMX_ADD_WIN_SCR (0) in this case */
+ cvmx_add_win_dec_t csrdec:2;
+ uint64_t addr:13;
+ } sscr;
+
+ /* there should only be stores to IOBDMA space, no loads */
+ /*
+ * IOBDMA virtual address - accessed through a window at the
+ * end of kseg3
+ */
+ struct {
+ uint64_t ones:49;
+ uint64_t csrdec:2; /* CVMX_ADD_WIN_DMA (1) in this case */
+ uint64_t unused2:3;
+ uint64_t type:3;
+ uint64_t addr:7;
+ } sdma;
+
+ struct {
+ uint64_t didspace:24;
+ uint64_t unused:40;
+ } sfilldidspace;
+
+} cvmx_addr_t;
+
+/* These macros for used by 32 bit applications */
+
+#define CVMX_MIPS32_SPACE_KSEG0 1l
+#define CVMX_ADD_SEG32(segment, add) \
+ (((int32_t)segment << 31) | (int32_t)(add))
+
+/*
+ * Currently all IOs are performed using XKPHYS addressing. Linux uses
+ * the CvmMemCtl register to enable XKPHYS addressing to IO space from
+ * user mode. Future OSes may need to change the upper bits of IO
+ * addresses. The following define controls the upper two bits for all
+ * IO addresses generated by the simple executive library.
+ */
+#define CVMX_IO_SEG CVMX_MIPS_SPACE_XKPHYS
+
+/* These macros simplify the process of creating common IO addresses */
+#define CVMX_ADD_SEG(segment, add) ((((uint64_t)segment) << 62) | (add))
+#ifndef CVMX_ADD_IO_SEG
+#define CVMX_ADD_IO_SEG(add) CVMX_ADD_SEG(CVMX_IO_SEG, (add))
+#endif
+#define CVMX_ADDR_DIDSPACE(did) (((CVMX_IO_SEG) << 22) | ((1ULL) << 8) | (did))
+#define CVMX_ADDR_DID(did) (CVMX_ADDR_DIDSPACE(did) << 40)
+#define CVMX_FULL_DID(did, subdid) (((did) << 3) | (subdid))
+
+ /* from include/ncb_rsl_id.v */
+#define CVMX_OCT_DID_MIS 0ULL /* misc stuff */
+#define CVMX_OCT_DID_GMX0 1ULL
+#define CVMX_OCT_DID_GMX1 2ULL
+#define CVMX_OCT_DID_PCI 3ULL
+#define CVMX_OCT_DID_KEY 4ULL
+#define CVMX_OCT_DID_FPA 5ULL
+#define CVMX_OCT_DID_DFA 6ULL
+#define CVMX_OCT_DID_ZIP 7ULL
+#define CVMX_OCT_DID_RNG 8ULL
+#define CVMX_OCT_DID_IPD 9ULL
+#define CVMX_OCT_DID_PKT 10ULL
+#define CVMX_OCT_DID_TIM 11ULL
+#define CVMX_OCT_DID_TAG 12ULL
+ /* the rest are not on the IO bus */
+#define CVMX_OCT_DID_L2C 16ULL
+#define CVMX_OCT_DID_LMC 17ULL
+#define CVMX_OCT_DID_SPX0 18ULL
+#define CVMX_OCT_DID_SPX1 19ULL
+#define CVMX_OCT_DID_PIP 20ULL
+#define CVMX_OCT_DID_ASX0 22ULL
+#define CVMX_OCT_DID_ASX1 23ULL
+#define CVMX_OCT_DID_IOB 30ULL
+
+#define CVMX_OCT_DID_PKT_SEND CVMX_FULL_DID(CVMX_OCT_DID_PKT, 2ULL)
+#define CVMX_OCT_DID_TAG_SWTAG CVMX_FULL_DID(CVMX_OCT_DID_TAG, 0ULL)
+#define CVMX_OCT_DID_TAG_TAG1 CVMX_FULL_DID(CVMX_OCT_DID_TAG, 1ULL)
+#define CVMX_OCT_DID_TAG_TAG2 CVMX_FULL_DID(CVMX_OCT_DID_TAG, 2ULL)
+#define CVMX_OCT_DID_TAG_TAG3 CVMX_FULL_DID(CVMX_OCT_DID_TAG, 3ULL)
+#define CVMX_OCT_DID_TAG_NULL_RD CVMX_FULL_DID(CVMX_OCT_DID_TAG, 4ULL)
+#define CVMX_OCT_DID_TAG_CSR CVMX_FULL_DID(CVMX_OCT_DID_TAG, 7ULL)
+#define CVMX_OCT_DID_FAU_FAI CVMX_FULL_DID(CVMX_OCT_DID_IOB, 0ULL)
+#define CVMX_OCT_DID_TIM_CSR CVMX_FULL_DID(CVMX_OCT_DID_TIM, 0ULL)
+#define CVMX_OCT_DID_KEY_RW CVMX_FULL_DID(CVMX_OCT_DID_KEY, 0ULL)
+#define CVMX_OCT_DID_PCI_6 CVMX_FULL_DID(CVMX_OCT_DID_PCI, 6ULL)
+#define CVMX_OCT_DID_MIS_BOO CVMX_FULL_DID(CVMX_OCT_DID_MIS, 0ULL)
+#define CVMX_OCT_DID_PCI_RML CVMX_FULL_DID(CVMX_OCT_DID_PCI, 0ULL)
+#define CVMX_OCT_DID_IPD_CSR CVMX_FULL_DID(CVMX_OCT_DID_IPD, 7ULL)
+#define CVMX_OCT_DID_DFA_CSR CVMX_FULL_DID(CVMX_OCT_DID_DFA, 7ULL)
+#define CVMX_OCT_DID_MIS_CSR CVMX_FULL_DID(CVMX_OCT_DID_MIS, 7ULL)
+#define CVMX_OCT_DID_ZIP_CSR CVMX_FULL_DID(CVMX_OCT_DID_ZIP, 0ULL)
+
+#endif /* __CVMX_ADDRESS_H__ */