/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ALPHA_CIA__H__
#define __ALPHA_CIA__H__
/* Define to experiment with fitting everything into one 512MB HAE window. */
#define CIA_ONE_HAE_WINDOW 1
#include <linux/types.h>
#include <asm/compiler.h>
/*
* CIA is the internal name for the 21171 chipset which provides
* memory controller and PCI access for the 21164 chip based systems.
* Also supported here is the 21172 (CIA-2) and 21174 (PYXIS).
*
* The lineage is a bit confused, since the 21174 was reportedly started
* from the 21171 Pass 1 mask, and so is missing bug fixes that appear
* in 21171 Pass 2 and 21172, but it also contains additional features.
*
* This file is based on:
*
* DECchip 21171 Core Logic Chipset
* Technical Reference Manual
*
* EC-QE18B-TE
*
* david.rusling@reo.mts.dec.com Initial Version.
*
*/
/*
* CIA ADDRESS BIT DEFINITIONS
*
* 3333 3333 3322 2222 2222 1111 1111 11
* 9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
* 1 000
* ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
* | |\|
* | Byte Enable --+ |
* | Transfer Length --+
* +-- IO space, not cached
*
* Byte Transfer
* Enable Length Transfer Byte Address
* adr<6:5> adr<4:3> Length Enable Adder
* ---------------------------------------------
* 00 00 Byte 1110 0x000
* 01 00 Byte 1101 0x020
* 10 00 Byte 1011 0x040
* 11 00 Byte 0111 0x060
*
* 00 01 Word 1100 0x008
* 01 01 Word 1001 0x028 <= Not supported in this code.
* 10 01 Word 0011 0x048
*
* 00 10 Tribyte 1000 0x010
* 01 10 Tribyte 0001 0x030
*
* 10 11 Longword 0000 0x058
*
* Note that byte enables are asserted low.
*
*/
#define CIA_MEM_R1_MASK 0x1fffffff /* SPARSE Mem region 1 mask is 29 bits */
#define CIA_MEM_R2_MASK 0x07ffffff /* SPARSE Mem region 2 mask is 27 bits */
#define CIA_MEM_R3_MASK 0x03ffffff /* SPARSE Mem region 3 mask is 26 bits */
/*
* 21171-CA Control and Status Registers
*/
#define CIA_IOC_CIA_REV (IDENT_ADDR + 0x8740000080UL)
# define CIA_REV_MASK 0xff
#define CIA_IOC_PCI_LAT (IDENT_ADDR + 0x87400000C0UL)
#define CIA_IOC_CIA_CTRL (IDENT_ADDR + 0x8740000100UL)
# define CIA_CTRL_PCI_EN (1 << 0)
# define CIA_CTRL_PCI_LOCK_EN (1 << 1)
# define CIA_CTRL_PCI_LOOP_EN (1 << 2)
# define CIA_CTRL_FST_BB_EN (1 << 3)
# define CIA_CTRL_PCI_MST_EN (1 << 4)
# define CIA_CTRL_PCI_MEM_EN (1 << 5)
# define CIA_CTRL_PCI_REQ64_EN (1 << 6)
# define CIA_CTRL_PCI_ACK64_EN (1 << 7)
# define CIA_CTRL_ADDR_PE_EN (1 << 8)
# define CIA_CTRL_PERR_EN (1 << 9)
# define CIA_CTRL_FILL_ERR_EN (1 << 10)
# define CIA_CTRL_MCHK_ERR_EN (1 << 11)
# define CIA_CTRL_ECC_CHK_EN (1 << 12)
# define CIA_CTRL_ASSERT_IDLE_BC (1 << 13)
# define CIA_CTRL_COM_IDLE_BC (1 << 14)
# define CIA_CTRL_CSR_IOA_BYPASS (1 << 15)
# define CIA_CTRL_IO_FLUSHREQ_EN (1 << 16)
# define CIA_CTRL_CPU_FLUSHREQ_EN (1 << 17)
# define CIA_CTRL_ARB_CPU_EN (1 << 18)
# define CIA_CTRL_EN_ARB_LINK (1 << 19)
# define CIA_CTRL_RD_TYPE_SHIFT 20
# define CIA_CTRL_RL_TYPE_SHIFT 24
# define CIA_CTRL_RM_TYPE_SHIFT 28
# define CIA_CTRL_EN_DMA_RD_PERF (1 << 31)
#define CIA_IOC_CIA_CNFG (IDENT_ADDR + 0x8740000140UL)
# define CIA_CNFG_IOA_BWEN (1 << 0)
# define CIA_CNFG_PCI_MWEN (1 << 4)
# define CIA_CNFG_PCI_DWEN (1 << 5)
# define CIA_CNFG_PCI_WLEN (1 << 8)
#define CIA_IOC_FLASH_CTRL (IDENT_ADDR + 0x8740000200UL)
#define CIA_IOC_HAE_MEM (IDENT_ADDR + 0x8740000400UL)
#define CIA_IOC_HAE_IO (IDENT_ADDR + 0x8740000440UL)
#define CIA_IOC_CFG (IDENT_ADDR + 0x8740000480UL)
#define CIA_IOC_CACK_EN (IDENT_ADDR + 0x8740000600UL)
# define CIA_CACK_EN_LOCK_EN (1 << 0)
# define CIA_CACK_EN_MB_EN (1 << 1)
# define CIA_CACK_EN_SET_DIRTY_EN (1 << 2)
# define CIA_CACK_EN_BC_VICTIM_EN (1 << 3)
/*
* 21171-CA Diagnostic Registers
*/
#define CIA_IOC_CIA_DIAG (IDENT_ADDR + 0x8740002000UL)
#define CIA_IOC_DIAG_CHECK (IDENT_ADDR + 0x8740003000UL)
/*
* 21171-CA Performance Monitor registers
*/
#define CIA_IOC_PERF_MONITOR (IDENT_ADDR + 0x8740004000UL)
#define CIA_IOC_PERF_CONTROL (IDENT_ADDR + 0x8740004040UL)
/*
* 21171-CA Error registers
*/
#define CIA_IOC_CPU_ERR0 (IDENT_ADDR + 0x8740008000UL)
#define CIA_IOC_CPU_ERR1 (IDENT_ADDR + 0x8740008040UL)
#define CIA_IOC_CIA_ERR (IDENT_ADDR + 0x8740008200UL)
# define CIA_ERR_COR_ERR (1 << 0)
# define CIA_ERR_UN_COR_ERR (1 << 1)
# define CIA_ERR_CPU_PE (1 << 2)
# define CIA_ERR_MEM_NEM (1 << 3)
# define CIA_ERR_PCI_SERR (1 << 4)
# define CIA_ERR_PERR (1 << 5)
# define CIA_ERR_PCI_ADDR_PE (1 << 6)
# define CIA_ERR_RCVD_MAS_ABT (1 << 7)
# define CIA_ERR_RCVD_TAR_ABT (1 << 8)
# define CIA_ERR_PA_PTE_INV (1 << 9)
# define CIA_ERR_FROM_WRT_ERR (1 << 10)
# define CIA_ERR_IOA_TIMEOUT (1 << 11)
# define CIA_ERR_LOST_CORR_ERR (1 << 16)
# define CIA_ERR_LOST_UN_CORR_ERR (1 << 17)
# define CIA_ERR_LOST_CPU_PE (1 << 18)
# define CIA_ERR_LOST_MEM_NEM (1 << 19)
# define CIA_ERR_LOST_PERR (1 << 21)
# define CIA_ERR_LOST_PCI_ADDR_PE (1 << 22)
# define CIA_ERR_LOST_RCVD_MAS_ABT (1 << 23)
# define CIA_ERR_LOST_RCVD_TAR_ABT (1 << 24)
# define CIA_ERR_LOST_PA_PTE_INV (1 << 25)
# define CIA_ERR_LOST_FROM_WRT_ERR (1 << 26)
# define CIA_ERR_LOST_IOA_TIMEOUT (1 << 27)
# define CIA_ERR_VALID (1 << 31)
#define CIA_IOC_CIA_STAT (IDENT_ADDR + 0x8740008240UL)
#define CIA_IOC_ERR_MASK (IDENT_ADDR + 0x8740008280UL)
#define CIA_IOC_CIA_SYN (IDENT_ADDR + 0x8740008300UL)
#define CIA_IOC_MEM_ERR0 (IDENT_ADDR + 0x8740008400UL)
#define CIA_IOC_MEM_ERR1 (IDENT_ADDR + 0x8740008440UL)
#define CIA_IOC_PCI_ERR0 (IDENT_ADDR + 0x8740008800UL)
#define CIA_IOC_PCI_ERR1 (IDENT_ADDR + 0x8740008840UL)
#define CIA_IOC_PCI_ERR3 (IDENT_ADDR + 0x8740008880UL)
/*
* 21171-CA System configuration registers
*/
#define CIA_IOC_MCR (IDENT_ADDR + 0x8750000000UL)
#define CIA_IOC_MBA0 (IDENT_ADDR + 0x8750000600UL)
#define CIA_IOC_MBA2 (IDENT_ADDR + 0x8750000680UL)
#define CIA_IOC_MBA4 (IDENT_ADDR + 0x8750000700UL)
#define CIA_IOC_MBA6 (IDENT_ADDR + 0x8750000780UL)
#define CIA_IOC_MBA8 (IDENT_ADDR + 0x8750000800UL)
#define CIA_IOC_MBAA (IDENT_ADDR + 0x8750000880UL)
#define CIA_IOC_MBAC (IDENT_ADDR + 0x8750000900UL)
#define CIA_IOC_MBAE (IDENT_ADDR + 0x8750000980UL)
#define CIA_IOC_TMG0 (IDENT_ADDR + 0x8750000B00UL)
#define CIA_IOC_TMG1 (IDENT_ADDR + 0x8750000B40UL)
#define CIA_IOC_TMG2 (IDENT_ADDR + 0x8750000B80UL)
/*
* 2117A-CA PCI Address and Scatter-Gather Registers.
*/
#define CIA_IOC_PCI_TBIA (IDENT_ADDR + 0x8760000100UL)
#define CIA_IOC_PCI_W0_BASE (IDENT_ADDR + 0x8760000400UL)
#define CIA_IOC_PCI_W0_MASK (IDENT_ADDR + 0x8760000440UL)
#define CIA_IOC_PCI_T0_BASE (IDENT_ADDR + 0x8760000480UL)
#define CIA_IOC_PCI_W1_BASE (IDENT_ADDR + 0x8760000500UL)
#define CIA_IOC_PCI_W1_MASK (IDENT_ADDR + 0x8760000540UL)
#define CIA_IOC_PCI_T1_BASE (IDENT_ADDR + 0x8760000580UL)
#define CIA_IOC_PCI_W2_BASE (IDENT_ADDR + 0x8760000600UL)
#define CIA_IOC_PCI_W2_MASK (IDENT_ADDR + 0x8760000640UL)
#define CIA_IOC_PCI_T2_BASE (IDENT_ADDR + 0x8760000680UL)
#define CIA_IOC_PCI_W3_BASE (IDENT_ADDR + 0x8760000700UL)
#define CIA_IOC_PCI_W3_MASK (IDENT_ADDR + 0x8760000740UL)
#define CIA_IOC_PCI_T3_BASE (IDENT_ADDR + 0x8760000780UL)
#define CIA_IOC_PCI_Wn_BASE(N) (IDENT_ADDR + 0x8760000400UL + (N)*0x100)
#define CIA_IOC_PCI_Wn_MASK(N) (IDENT_ADDR + 0x8760000440UL + (N)*0x100)
#define CIA_IOC_PCI_Tn_BASE(N) (IDENT_ADDR + 0x8760000480UL + (N)*0x100)
#define CIA_IOC_PCI_W_DAC (IDENT_ADDR + 0x87600007C0UL)
/*
* 2117A-CA Address Translation Registers.
*/
/* 8 tag registers, the first 4 of which are lockable. */
#define CIA_IOC_TB_TAGn(n) \
(IDENT_ADDR + 0x8760000800UL + (n)*0x40)
/* 4 page registers per tag register. */
#define CIA_IOC_TBn_PAGEm(n,m) \
(IDENT_ADDR + 0x8760001000UL + (n)*0x100 + (m)*0x40)
/*
* Memory spaces:
*/
#define CIA_IACK_SC (IDENT_ADDR + 0x8720000000UL)
#define CIA_CONF (IDENT_ADDR + 0x8700000000UL)
#define CIA_IO (IDENT_ADDR + 0x8580000000UL)
#define CIA_SPARSE_MEM (IDENT_ADDR + 0x8000000000UL)
#define CIA_SPARSE_MEM_R2 (IDENT_ADDR + 0x8400000000UL)
#define CIA_SPARSE_MEM_R3 (IDENT_ADDR + 0x8500000000UL)
#define CIA_DENSE_MEM (IDENT_ADDR + 0x8600000000UL)
#define CIA_BW_MEM (IDENT_ADDR + 0x8800000000UL)
#define CIA_BW_IO (IDENT_ADDR + 0x8900000000UL)
#define CIA_BW_CFG_0 (IDENT_ADDR + 0x8a00000000UL)
#define CIA_BW_CFG_1 (IDENT_ADDR + 0x8b00000000UL)
/*
* ALCOR's GRU ASIC registers
*/
#define GRU_INT_REQ (IDENT_ADDR + 0x8780000000UL)
#define GRU_INT_MASK (IDENT_ADDR + 0x8780000040UL)
#define GRU_INT_EDGE (IDENT_ADDR + 0x8780000080UL)
#define GRU_INT_HILO (IDENT_ADDR + 0x87800000C0UL)
#define GRU_INT_CLEAR (IDENT_ADDR + 0x8780000100UL)
#define GRU_CACHE_CNFG (IDENT_ADDR + 0x8780000200UL)
#define GRU_SCR (IDENT_ADDR + 0x8780000300UL)
#define GRU_LED (IDENT_ADDR + 0x8780000800UL)
#define GRU_RESET (IDENT_ADDR + 0x8780000900UL)
#define ALCOR_GRU_INT_REQ_BITS 0x800fffffUL
#define XLT_GRU_INT_REQ_BITS 0x80003fffUL
#define GRU_INT_REQ_BITS (alpha_mv.sys.cia.gru_int_req_bits+0)
/*
* PYXIS interrupt control registers
*/
#define PYXIS_INT_REQ (IDENT_ADDR + 0x87A0000000UL)
#define PYXIS_INT_MASK (IDENT_ADDR + 0x87A0000040UL)
#define PYXIS_INT_HILO (IDENT_ADDR + 0x87A00000C0UL)
#define PYXIS_INT_ROUTE (IDENT_ADDR + 0x87A0000140UL)
#define PYXIS_GPO (IDENT_ADDR + 0x87A0000180UL)
#define PYXIS_INT_CNFG (IDENT_ADDR + 0x87A00001C0UL)
#define PYXIS_RT_COUNT (IDENT_ADDR + 0x87A0000200UL)
#define PYXIS_INT_TIME (IDENT_ADDR + 0x87A0000240UL)
#define PYXIS_IIC_CTRL (IDENT_ADDR + 0x87A00002C0UL)
#define PYXIS_RESET (IDENT_ADDR + 0x8780000900UL)
/* Offset between ram physical addresses and pci64 DAC bus addresses. */
#define PYXIS_DAC_OFFSET (1UL << 40)
/*
* Data structure for handling CIA machine checks.
*/
/* System-specific info. */
struct el_CIA_sysdata_mcheck {
unsigned long cpu_err0;
unsigned long cpu_err1;
unsigned long cia_err;
unsigned long cia_stat;
unsigned long err_mask;
unsigned long cia_syn;
unsigned long mem_err0;
unsigned long mem_err1;
unsigned long pci_err0;
unsigned long pci_err1;
unsigned long pci_err2;
};
#ifdef __KERNEL__
#ifndef __EXTERN_INLINE
/* Do not touch, this should *NOT* be static inline */
#define __EXTERN_INLINE extern inline
#define __IO_EXTERN_INLINE
#endif
/*
* I/O functions:
*
* CIA (the 2117x PCI/memory support chipset for the EV5 (21164)
* series of processors uses a sparse address mapping scheme to
* get at PCI memory and I/O.
*/
/*
* Memory functions. 64-bit and 32-bit accesses are done through
* dense memory space, everything else through sparse space.
*
* For reading and writing 8 and 16 bit quantities we need to
* go through one of the three sparse address mapping regions
* and use the HAE_MEM CSR to provide some bits of the address.
* The following few routines use only sparse address region 1
* which gives 1Gbyte of accessible space which relates exactly
* to the amount of PCI memory mapping *into* system address space.
* See p 6-17 of the specification but it looks something like this:
*
* 21164 Address:
*
* 3 2 1
* 9876543210987654321098765432109876543210
* 1ZZZZ0.PCI.QW.Address............BBLL
*
* ZZ = SBZ
* BB = Byte offset
* LL = Transfer length
*
* PCI Address:
*
* 3 2 1
* 10987654321098765432109876543210
* HHH....PCI.QW.Address........ 00
*
* HHH = 31:29 HAE_MEM CSR
*
*/
#define vip volatile int __force *
#define vuip volatile unsigned int __force *
#define vulp volatile unsigned long __force *
__EXTERN_INLINE u8 cia_ioread8(const void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
unsigned long result, base_and_type;
if (addr >= CIA_DENSE_MEM)
base_and_type = CIA_SPARSE_MEM + 0x00;
else
base_and_type = CIA_IO + 0x00;
/* We can use CIA_MEM_R1_MASK for io ports too, since it is large
enough to cover all io ports, and smaller than CIA_IO. */
addr &= CIA_MEM_R1_MASK;
result = *(vip) ((addr << 5) + base_and_type);
return __kernel_extbl(result, addr & 3);
}
__EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
unsigned long w, base_and_type;
if (addr >= CIA_DENSE_MEM)
base_and_type = CIA_SPARSE_MEM + 0x00;
else
base_and_type = CIA_IO + 0x00;
addr &= CIA_MEM_R1_MASK;
w = __kernel_insbl(b, addr & 3);
*(vuip) ((addr << 5) + base_and_type) = w;
}
__EXTERN_INLINE u16 cia_ioread16(const void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
unsigned long result, base_and_type;
if (addr >= CIA_DENSE_MEM)
base_and_type = CIA_SPARSE_MEM + 0x08;
else
base_and_type = CIA_IO + 0x08;
addr &= CIA_MEM_R1_MASK;
result = *(vip) ((addr << 5) + base_and_type);
return __kernel_extwl(result, addr & 3);
}
__EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
unsigned long w, base_and_type;
if (addr >= CIA_DENSE_MEM)
base_and_type = CIA_SPARSE_MEM + 0x08;
else
base_and_type = CIA_IO + 0x08;
addr &= CIA_MEM_R1_MASK;
w = __kernel_inswl(b, addr & 3);
*(vuip) ((addr << 5) + base_and_type) = w;
}
__EXTERN_INLINE u32 cia_ioread32(const void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
if (addr < CIA_DENSE_MEM)
addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
return *(vuip)addr;
}
__EXTERN_INLINE void cia_iowrite32(u32 b, void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
if (addr < CIA_DENSE_MEM)
addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
*(vuip)addr = b;
}
__EXTERN_INLINE u64 cia_ioread64(const void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
if (addr < CIA_DENSE_MEM)
addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
return *(vulp)addr;
}
__EXTERN_INLINE void cia_iowrite64(u64 b, void __iomem *xaddr)
{
unsigned long addr = (unsigned long) xaddr;
if (addr < CIA_DENSE_MEM)
addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
*(vulp)addr = b;
}
__EXTERN_INLINE void __iomem *cia_ioportmap(unsigned long addr)
{
return (void __iomem *)(addr + CIA_IO);
}
__EXTERN_INLINE void __iomem *cia_ioremap(unsigned long addr,
unsigned long size)
{
return (void __iomem *)(addr + CIA_DENSE_MEM);
}
__EXTERN_INLINE int cia_is_ioaddr(unsigned long addr)
{
return addr >= IDENT_ADDR + 0x8000000000UL;
}
__EXTERN_INLINE int cia_is_mmio(const volatile void __iomem *addr)
{
return (unsigned long)addr >= CIA_DENSE_MEM;
}
__EXTERN_INLINE void __iomem *cia_bwx_ioportmap(unsigned long addr)
{
return (void __iomem *)(addr + CIA_BW_IO);
}
__EXTERN_INLINE void __iomem *cia_bwx_ioremap(unsigned long addr,
unsigned long size)
{
return (void __iomem *)(addr + CIA_BW_MEM);
}
__EXTERN_INLINE int cia_bwx_is_ioaddr(unsigned long addr)
{
return addr >= IDENT_ADDR + 0x8000000000UL;
}
__EXTERN_INLINE int cia_bwx_is_mmio(const volatile void __iomem *addr)
{
return (unsigned long)addr < CIA_BW_IO;
}
#undef vip
#undef vuip
#undef vulp
#undef __IO_PREFIX
#define __IO_PREFIX cia
#define cia_trivial_rw_bw 2
#define cia_trivial_rw_lq 1
#define cia_trivial_io_bw 0
#define cia_trivial_io_lq 0
#define cia_trivial_iounmap 1
#include <asm/io_trivial.h>
#undef __IO_PREFIX
#define __IO_PREFIX cia_bwx
#define cia_bwx_trivial_rw_bw 1
#define cia_bwx_trivial_rw_lq 1
#define cia_bwx_trivial_io_bw 1
#define cia_bwx_trivial_io_lq 1
#define cia_bwx_trivial_iounmap 1
#include <asm/io_trivial.h>
#undef __IO_PREFIX
#ifdef CONFIG_ALPHA_PYXIS
#define __IO_PREFIX cia_bwx
#else
#define __IO_PREFIX cia
#endif
#ifdef __IO_EXTERN_INLINE
#undef __EXTERN_INLINE
#undef __IO_EXTERN_INLINE
#endif
#endif /* __KERNEL__ */
#endif /* __ALPHA_CIA__H__ */