Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 261 insertions, 0 deletions

diff --git a/arch/ia64/sn/include/pci/pic.h b/arch/ia64/sn/include/pci/pic.h
new file mode 100644
index 000000000000..fd18acecb1e6
--- /dev/null
+++ b/arch/ia64/sn/include/pci/pic.h
@@ -0,0 +1,261 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1992 - 1997, 2000-2003 Silicon Graphics, Inc. All rights reserved.
+ */
+#ifndef _ASM_IA64_SN_PCI_PIC_H
+#define _ASM_IA64_SN_PCI_PIC_H
+
+/*
+ * PIC AS DEVICE ZERO
+ * ------------------
+ *
+ * PIC handles PCI/X busses.  PCI/X requires that the 'bridge' (i.e. PIC)
+ * be designated as 'device 0'.   That is a departure from earlier SGI
+ * PCI bridges.  Because of that we use config space 1 to access the
+ * config space of the first actual PCI device on the bus. 
+ * Here's what the PIC manual says:
+ *
+ *     The current PCI-X bus specification now defines that the parent
+ *     hosts bus bridge (PIC for example) must be device 0 on bus 0. PIC
+ *     reduced the total number of devices from 8 to 4 and removed the
+ *     device registers and windows, now only supporting devices 0,1,2, and
+ *     3. PIC did leave all 8 configuration space windows. The reason was
+ *     there was nothing to gain by removing them. Here in lies the problem.
+ *     The device numbering we do using 0 through 3 is unrelated to the device
+ *     numbering which PCI-X requires in configuration space. In the past we
+ *     correlated Configs pace and our device space 0 <-> 0, 1 <-> 1, etc.
+ *     PCI-X requires we start a 1, not 0 and currently the PX brick
+ *     does associate our:
+ * 
+ *         device 0 with configuration space window 1,
+ *         device 1 with configuration space window 2, 
+ *         device 2 with configuration space window 3,
+ *         device 3 with configuration space window 4.
+ *
+ * The net effect is that all config space access are off-by-one with 
+ * relation to other per-slot accesses on the PIC.   
+ * Here is a table that shows some of that:
+ *
+ *                               Internal Slot#
+ *           |
+ *           |     0         1        2         3
+ * ----------|---------------------------------------
+ * config    |  0x21000   0x22000  0x23000   0x24000
+ *           |
+ * even rrb  |  0[0]      n/a      1[0]      n/a	[] == implied even/odd
+ *           |
+ * odd rrb   |  n/a       0[1]     n/a       1[1]
+ *           |
+ * int dev   |  00       01        10        11
+ *           |
+ * ext slot# |  1        2         3         4
+ * ----------|---------------------------------------
+ */
+
+#define PIC_ATE_TARGETID_SHFT           8
+#define PIC_HOST_INTR_ADDR              0x0000FFFFFFFFFFFFUL
+#define PIC_PCI64_ATTR_TARG_SHFT        60
+
+
+/*****************************************************************************
+ *********************** PIC MMR structure mapping ***************************
+ *****************************************************************************/
+
+/* NOTE: PIC WAR. PV#854697.  PIC does not allow writes just to [31:0]
+ * of a 64-bit register.  When writing PIC registers, always write the 
+ * entire 64 bits.
+ */
+
+struct pic {
+
+    /* 0x000000-0x00FFFF -- Local Registers */
+
+    /* 0x000000-0x000057 -- Standard Widget Configuration */
+    uint64_t		p_wid_id;			/* 0x000000 */
+    uint64_t		p_wid_stat;			/* 0x000008 */
+    uint64_t		p_wid_err_upper;		/* 0x000010 */
+    uint64_t		p_wid_err_lower;		/* 0x000018 */
+    #define p_wid_err p_wid_err_lower
+    uint64_t		p_wid_control;			/* 0x000020 */
+    uint64_t		p_wid_req_timeout;		/* 0x000028 */
+    uint64_t		p_wid_int_upper;		/* 0x000030 */
+    uint64_t		p_wid_int_lower;		/* 0x000038 */
+    #define p_wid_int p_wid_int_lower
+    uint64_t		p_wid_err_cmdword;		/* 0x000040 */
+    uint64_t		p_wid_llp;			/* 0x000048 */
+    uint64_t		p_wid_tflush;			/* 0x000050 */
+
+    /* 0x000058-0x00007F -- Bridge-specific Widget Configuration */
+    uint64_t		p_wid_aux_err;			/* 0x000058 */
+    uint64_t		p_wid_resp_upper;		/* 0x000060 */
+    uint64_t		p_wid_resp_lower;		/* 0x000068 */
+    #define p_wid_resp p_wid_resp_lower
+    uint64_t		p_wid_tst_pin_ctrl;		/* 0x000070 */
+    uint64_t		p_wid_addr_lkerr;		/* 0x000078 */
+
+    /* 0x000080-0x00008F -- PMU & MAP */
+    uint64_t		p_dir_map;			/* 0x000080 */
+    uint64_t		_pad_000088;			/* 0x000088 */
+
+    /* 0x000090-0x00009F -- SSRAM */
+    uint64_t		p_map_fault;			/* 0x000090 */
+    uint64_t		_pad_000098;			/* 0x000098 */
+
+    /* 0x0000A0-0x0000AF -- Arbitration */
+    uint64_t		p_arb;				/* 0x0000A0 */
+    uint64_t		_pad_0000A8;			/* 0x0000A8 */
+
+    /* 0x0000B0-0x0000BF -- Number In A Can or ATE Parity Error */
+    uint64_t		p_ate_parity_err;		/* 0x0000B0 */
+    uint64_t		_pad_0000B8;			/* 0x0000B8 */
+
+    /* 0x0000C0-0x0000FF -- PCI/GIO */
+    uint64_t		p_bus_timeout;			/* 0x0000C0 */
+    uint64_t		p_pci_cfg;			/* 0x0000C8 */
+    uint64_t		p_pci_err_upper;		/* 0x0000D0 */
+    uint64_t		p_pci_err_lower;		/* 0x0000D8 */
+    #define p_pci_err p_pci_err_lower
+    uint64_t		_pad_0000E0[4];			/* 0x0000{E0..F8} */
+
+    /* 0x000100-0x0001FF -- Interrupt */
+    uint64_t		p_int_status;			/* 0x000100 */
+    uint64_t		p_int_enable;			/* 0x000108 */
+    uint64_t		p_int_rst_stat;			/* 0x000110 */
+    uint64_t		p_int_mode;			/* 0x000118 */
+    uint64_t		p_int_device;			/* 0x000120 */
+    uint64_t		p_int_host_err;			/* 0x000128 */
+    uint64_t		p_int_addr[8];			/* 0x0001{30,,,68} */
+    uint64_t		p_err_int_view;			/* 0x000170 */
+    uint64_t		p_mult_int;			/* 0x000178 */
+    uint64_t		p_force_always[8];		/* 0x0001{80,,,B8} */
+    uint64_t		p_force_pin[8];			/* 0x0001{C0,,,F8} */
+
+    /* 0x000200-0x000298 -- Device */
+    uint64_t		p_device[4];			/* 0x0002{00,,,18} */
+    uint64_t		_pad_000220[4];			/* 0x0002{20,,,38} */
+    uint64_t		p_wr_req_buf[4];		/* 0x0002{40,,,58} */
+    uint64_t		_pad_000260[4];			/* 0x0002{60,,,78} */
+    uint64_t		p_rrb_map[2];			/* 0x0002{80,,,88} */
+    #define p_even_resp p_rrb_map[0]			/* 0x000280 */
+    #define p_odd_resp  p_rrb_map[1]			/* 0x000288 */
+    uint64_t		p_resp_status;			/* 0x000290 */
+    uint64_t		p_resp_clear;			/* 0x000298 */
+
+    uint64_t		_pad_0002A0[12];		/* 0x0002{A0..F8} */
+
+    /* 0x000300-0x0003F8 -- Buffer Address Match Registers */
+    struct {
+	uint64_t	upper;				/* 0x0003{00,,,F0} */
+	uint64_t	lower;				/* 0x0003{08,,,F8} */
+    } p_buf_addr_match[16];
+
+    /* 0x000400-0x0005FF -- Performance Monitor Registers (even only) */
+    struct {
+	uint64_t	flush_w_touch;			/* 0x000{400,,,5C0} */
+	uint64_t	flush_wo_touch;			/* 0x000{408,,,5C8} */
+	uint64_t	inflight;			/* 0x000{410,,,5D0} */
+	uint64_t	prefetch;			/* 0x000{418,,,5D8} */
+	uint64_t	total_pci_retry;		/* 0x000{420,,,5E0} */
+	uint64_t	max_pci_retry;			/* 0x000{428,,,5E8} */
+	uint64_t	max_latency;			/* 0x000{430,,,5F0} */
+	uint64_t	clear_all;			/* 0x000{438,,,5F8} */
+    } p_buf_count[8];
+
+    
+    /* 0x000600-0x0009FF -- PCI/X registers */
+    uint64_t		p_pcix_bus_err_addr;		/* 0x000600 */
+    uint64_t		p_pcix_bus_err_attr;		/* 0x000608 */
+    uint64_t		p_pcix_bus_err_data;		/* 0x000610 */
+    uint64_t		p_pcix_pio_split_addr;		/* 0x000618 */
+    uint64_t		p_pcix_pio_split_attr;		/* 0x000620 */
+    uint64_t		p_pcix_dma_req_err_attr;	/* 0x000628 */
+    uint64_t		p_pcix_dma_req_err_addr;	/* 0x000630 */
+    uint64_t		p_pcix_timeout;			/* 0x000638 */
+
+    uint64_t		_pad_000640[120];		/* 0x000{640,,,9F8} */
+
+    /* 0x000A00-0x000BFF -- PCI/X Read&Write Buffer */
+    struct {
+	uint64_t	p_buf_addr;			/* 0x000{A00,,,AF0} */
+	uint64_t	p_buf_attr;			/* 0X000{A08,,,AF8} */
+    } p_pcix_read_buf_64[16];
+
+    struct {
+	uint64_t	p_buf_addr;			/* 0x000{B00,,,BE0} */
+	uint64_t	p_buf_attr;			/* 0x000{B08,,,BE8} */
+	uint64_t	p_buf_valid;			/* 0x000{B10,,,BF0} */
+	uint64_t	__pad1;				/* 0x000{B18,,,BF8} */
+    } p_pcix_write_buf_64[8];
+
+    /* End of Local Registers -- Start of Address Map space */
+
+    char		_pad_000c00[0x010000 - 0x000c00];
+
+    /* 0x010000-0x011fff -- Internal ATE RAM (Auto Parity Generation) */
+    uint64_t		p_int_ate_ram[1024];		/* 0x010000-0x011fff */
+
+    /* 0x012000-0x013fff -- Internal ATE RAM (Manual Parity Generation) */
+    uint64_t		p_int_ate_ram_mp[1024];		/* 0x012000-0x013fff */
+
+    char		_pad_014000[0x18000 - 0x014000];
+
+    /* 0x18000-0x197F8 -- PIC Write Request Ram */
+    uint64_t		p_wr_req_lower[256];		/* 0x18000 - 0x187F8 */
+    uint64_t		p_wr_req_upper[256];		/* 0x18800 - 0x18FF8 */
+    uint64_t		p_wr_req_parity[256];		/* 0x19000 - 0x197F8 */
+
+    char		_pad_019800[0x20000 - 0x019800];
+
+    /* 0x020000-0x027FFF -- PCI Device Configuration Spaces */
+    union {
+	uint8_t		c[0x1000 / 1];			/* 0x02{0000,,,7FFF} */
+	uint16_t	s[0x1000 / 2];			/* 0x02{0000,,,7FFF} */
+	uint32_t	l[0x1000 / 4];			/* 0x02{0000,,,7FFF} */
+	uint64_t	d[0x1000 / 8];			/* 0x02{0000,,,7FFF} */
+	union {
+	    uint8_t	c[0x100 / 1];
+	    uint16_t	s[0x100 / 2];
+	    uint32_t	l[0x100 / 4];
+	    uint64_t	d[0x100 / 8];
+	} f[8];
+    } p_type0_cfg_dev[8];				/* 0x02{0000,,,7FFF} */
+
+    /* 0x028000-0x028FFF -- PCI Type 1 Configuration Space */
+    union {
+	uint8_t		c[0x1000 / 1];			/* 0x028000-0x029000 */
+	uint16_t	s[0x1000 / 2];			/* 0x028000-0x029000 */
+	uint32_t	l[0x1000 / 4];			/* 0x028000-0x029000 */
+	uint64_t	d[0x1000 / 8];			/* 0x028000-0x029000 */
+	union {
+	    uint8_t	c[0x100 / 1];
+	    uint16_t	s[0x100 / 2];
+	    uint32_t	l[0x100 / 4];
+	    uint64_t	d[0x100 / 8];
+	} f[8];
+    } p_type1_cfg;					/* 0x028000-0x029000 */
+
+    char		_pad_029000[0x030000-0x029000];
+
+    /* 0x030000-0x030007 -- PCI Interrupt Acknowledge Cycle */
+    union {
+	uint8_t		c[8 / 1];
+	uint16_t	s[8 / 2];
+	uint32_t	l[8 / 4];
+	uint64_t	d[8 / 8];
+    } p_pci_iack;					/* 0x030000-0x030007 */
+
+    char		_pad_030007[0x040000-0x030008];
+
+    /* 0x040000-0x030007 -- PCIX Special Cycle */
+    union {
+	uint8_t		c[8 / 1];
+	uint16_t	s[8 / 2];
+	uint32_t	l[8 / 4];
+	uint64_t	d[8 / 8];
+    } p_pcix_cycle;					/* 0x040000-0x040007 */
+};
+
+#endif                          /* _ASM_IA64_SN_PCI_PIC_H */