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freebsd-nq/sys/ia64/include/ia64_cpu.h

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This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
/*-
Have the processor defer all faults and exceptions for control speculative loads. This at least makes control speculative loads work. In the future we should analyze which faults/exceptions we want to handle rather than defer to avoid having to call the recovery code when it's not strictly necessary.
2007-05-27 19:02:47 +00:00
* Copyright (c) 2007 Marcel Moolenaar
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
* Copyright (c) 2000 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
Have the processor defer all faults and exceptions for control speculative loads. This at least makes control speculative loads work. In the future we should analyze which faults/exceptions we want to handle rather than defer to avoid having to call the recovery code when it's not strictly necessary.
2007-05-27 19:02:47 +00:00
* $FreeBSD$
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
*/
#ifndef _MACHINE_IA64_CPU_H_
#define _MACHINE_IA64_CPU_H_
Have the processor defer all faults and exceptions for control speculative loads. This at least makes control speculative loads work. In the future we should analyze which faults/exceptions we want to handle rather than defer to avoid having to call the recovery code when it's not strictly necessary.
2007-05-27 19:02:47 +00:00
/*
* Definition of DCR bits.
*/
#define IA64_DCR_PP 0x0000000000000001
#define IA64_DCR_BE 0x0000000000000002
#define IA64_DCR_LC 0x0000000000000004
#define IA64_DCR_DM 0x0000000000000100
#define IA64_DCR_DP 0x0000000000000200
#define IA64_DCR_DK 0x0000000000000400
#define IA64_DCR_DX 0x0000000000000800
#define IA64_DCR_DR 0x0000000000001000
#define IA64_DCR_DA 0x0000000000002000
#define IA64_DCR_DD 0x0000000000004000
#define IA64_DCR_DEFAULT \
(IA64_DCR_DM | IA64_DCR_DP | IA64_DCR_DK | IA64_DCR_DX | \
IA64_DCR_DR | IA64_DCR_DA | IA64_DCR_DD)
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
/*
* Definition of PSR and IPSR bits.
*/
#define IA64_PSR_BE 0x0000000000000002
#define IA64_PSR_UP 0x0000000000000004
#define IA64_PSR_AC 0x0000000000000008
#define IA64_PSR_MFL 0x0000000000000010
#define IA64_PSR_MFH 0x0000000000000020
#define IA64_PSR_IC 0x0000000000002000
#define IA64_PSR_I 0x0000000000004000
#define IA64_PSR_PK 0x0000000000008000
#define IA64_PSR_DT 0x0000000000020000
#define IA64_PSR_DFL 0x0000000000040000
#define IA64_PSR_DFH 0x0000000000080000
#define IA64_PSR_SP 0x0000000000100000
#define IA64_PSR_PP 0x0000000000200000
#define IA64_PSR_DI 0x0000000000400000
#define IA64_PSR_SI 0x0000000000800000
#define IA64_PSR_DB 0x0000000001000000
#define IA64_PSR_LP 0x0000000002000000
#define IA64_PSR_TB 0x0000000004000000
#define IA64_PSR_RT 0x0000000008000000
#define IA64_PSR_CPL 0x0000000300000000
#define IA64_PSR_CPL_KERN 0x0000000000000000
#define IA64_PSR_CPL_1 0x0000000100000000
#define IA64_PSR_CPL_2 0x0000000200000000
#define IA64_PSR_CPL_USER 0x0000000300000000
#define IA64_PSR_IS 0x0000000400000000
#define IA64_PSR_MC 0x0000000800000000
#define IA64_PSR_IT 0x0000001000000000
#define IA64_PSR_ID 0x0000002000000000
#define IA64_PSR_DA 0x0000004000000000
#define IA64_PSR_DD 0x0000008000000000
#define IA64_PSR_SS 0x0000010000000000
#define IA64_PSR_RI 0x0000060000000000
#define IA64_PSR_RI_0 0x0000000000000000
#define IA64_PSR_RI_1 0x0000020000000000
#define IA64_PSR_RI_2 0x0000040000000000
#define IA64_PSR_ED 0x0000080000000000
#define IA64_PSR_BN 0x0000100000000000
#define IA64_PSR_IA 0x0000200000000000
/*
* Definition of ISR bits.
*/
#define IA64_ISR_CODE 0x000000000000ffff
#define IA64_ISR_VECTOR 0x0000000000ff0000
#define IA64_ISR_X 0x0000000100000000
#define IA64_ISR_W 0x0000000200000000
#define IA64_ISR_R 0x0000000400000000
#define IA64_ISR_NA 0x0000000800000000
#define IA64_ISR_SP 0x0000001000000000
#define IA64_ISR_RS 0x0000002000000000
#define IA64_ISR_IR 0x0000004000000000
#define IA64_ISR_NI 0x0000008000000000
#define IA64_ISR_SO 0x0000010000000000
#define IA64_ISR_EI 0x0000060000000000
#define IA64_ISR_EI_0 0x0000000000000000
#define IA64_ISR_EI_1 0x0000020000000000
#define IA64_ISR_EI_2 0x0000040000000000
#define IA64_ISR_ED 0x0000080000000000
/*
* Vector numbers for various ia64 interrupts.
*/
#define IA64_VEC_VHPT 0
#define IA64_VEC_ITLB 1
#define IA64_VEC_DTLB 2
#define IA64_VEC_ALT_ITLB 3
#define IA64_VEC_ALT_DTLB 4
#define IA64_VEC_NESTED_DTLB 5
#define IA64_VEC_IKEY_MISS 6
#define IA64_VEC_DKEY_MISS 7
#define IA64_VEC_DIRTY_BIT 8
#define IA64_VEC_INST_ACCESS 9
#define IA64_VEC_DATA_ACCESS 10
#define IA64_VEC_BREAK 11
#define IA64_VEC_EXT_INTR 12
#define IA64_VEC_PAGE_NOT_PRESENT 20
#define IA64_VEC_KEY_PERMISSION 21
#define IA64_VEC_INST_ACCESS_RIGHTS 22
#define IA64_VEC_DATA_ACCESS_RIGHTS 23
#define IA64_VEC_GENERAL_EXCEPTION 24
#define IA64_VEC_DISABLED_FP 25
#define IA64_VEC_NAT_CONSUMPTION 26
#define IA64_VEC_SPECULATION 27
#define IA64_VEC_DEBUG 29
#define IA64_VEC_UNALIGNED_REFERENCE 30
#define IA64_VEC_UNSUPP_DATA_REFERENCE 31
#define IA64_VEC_FLOATING_POINT_FAULT 32
#define IA64_VEC_FLOATING_POINT_TRAP 33
#define IA64_VEC_LOWER_PRIVILEGE_TRANSFER 34
#define IA64_VEC_TAKEN_BRANCH_TRAP 35
#define IA64_VEC_SINGLE_STEP_TRAP 36
#define IA64_VEC_IA32_EXCEPTION 45
#define IA64_VEC_IA32_INTERCEPT 46
#define IA64_VEC_IA32_INTERRUPT 47
Add definitions for IA-32 exceptions, interrupts and intercepts.
2002-04-10 19:22:45 +00:00
/*
* IA-32 exceptions.
*/
#define IA32_EXCEPTION_DIVIDE 0
#define IA32_EXCEPTION_DEBUG 1
#define IA32_EXCEPTION_BREAK 3
#define IA32_EXCEPTION_OVERFLOW 4
#define IA32_EXCEPTION_BOUND 5
#define IA32_EXCEPTION_DNA 7
#define IA32_EXCEPTION_NOT_PRESENT 11
#define IA32_EXCEPTION_STACK_FAULT 12
#define IA32_EXCEPTION_GPFAULT 13
#define IA32_EXCEPTION_FPERROR 16
#define IA32_EXCEPTION_ALIGNMENT_CHECK 17
#define IA32_EXCEPTION_STREAMING_SIMD 19
#define IA32_INTERCEPT_INSTRUCTION 0
#define IA32_INTERCEPT_GATE 1
#define IA32_INTERCEPT_SYSTEM_FLAG 2
#define IA32_INTERCEPT_LOCK 4
* Various fixes to breakage introduced by the atomic and mutex reorgs. * Fixes to the signal delivery code. Not quite right yet. I would have preferred to wait until I have signal delivery actually working but the current kernel in CVS doesn't build.
2000-10-24 19:54:38 +00:00
#ifndef LOCORE
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
/*
* Various special ia64 instructions.
*/
/*
* Memory Fence.
*/
static __inline void
ia64_mf(void)
{
__asm __volatile("mf");
}
Add ia64_mf_a() which executes an mf.a instruction.
2001-09-15 12:30:19 +00:00
static __inline void
ia64_mf_a(void)
{
__asm __volatile("mf.a");
}
Add ia64_fc().
2001-09-21 10:09:27 +00:00
/*
* Flush Cache.
*/
static __inline void
ia64_fc(u_int64_t va)
{
__asm __volatile("fc %0" :: "r"(va));
}
Add ia64_sync_i(), ia64_get_tpr() and ia64_set_tpr().
2002-03-14 12:29:55 +00:00
/*
* Sync instruction stream.
*/
static __inline void
ia64_sync_i(void)
{
__asm __volatile("sync.i");
}
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
/*
* Calculate address in VHPT for va.
*/
static __inline u_int64_t
ia64_thash(u_int64_t va)
{
u_int64_t result;
__asm __volatile("thash %0=%1" : "=r" (result) : "r" (va));
return result;
}
/*
* Calculate VHPT tag for va.
*/
static __inline u_int64_t
ia64_ttag(u_int64_t va)
{
u_int64_t result;
__asm __volatile("ttag %0=%1" : "=r" (result) : "r" (va));
return result;
}
/*
* Convert virtual address to physical.
*/
static __inline u_int64_t
ia64_tpa(u_int64_t va)
{
u_int64_t result;
__asm __volatile("tpa %0=%1" : "=r" (result) : "r" (va));
return result;
}
* Add rudimentary DDB support (no kgdb, no backtrace, no single step). * Track recent changes to SWI code. * Allocate RIDs for pmaps (untested). * Implement assembler version of cpu_switch - its cleaner that way.
2000-10-10 14:57:10 +00:00
/*
* Generate a ptc.e instruction.
*/
static __inline void
ia64_ptc_e(u_int64_t v)
{
For ia64_ptc_{e,g,ga,l}(), use instruction serialization. We typically don't know what the TLB described and need to assume that it affects the fetching of instructions.
2005-08-06 19:54:31 +00:00
__asm __volatile("ptc.e %0;; srlz.i;;" :: "r"(v));
* Add rudimentary DDB support (no kgdb, no backtrace, no single step). * Track recent changes to SWI code. * Allocate RIDs for pmaps (untested). * Implement assembler version of cpu_switch - its cleaner that way.
2000-10-10 14:57:10 +00:00
}
/*
* Generate a ptc.g instruction.
*/
static __inline void
ia64_ptc_g(u_int64_t va, u_int64_t log2size)
{
For ia64_ptc_{e,g,ga,l}(), use instruction serialization. We typically don't know what the TLB described and need to assume that it affects the fetching of instructions.
2005-08-06 19:54:31 +00:00
__asm __volatile("ptc.g %0,%1;; srlz.i;;" :: "r"(va), "r"(log2size));
* Add rudimentary DDB support (no kgdb, no backtrace, no single step). * Track recent changes to SWI code. * Allocate RIDs for pmaps (untested). * Implement assembler version of cpu_switch - its cleaner that way.
2000-10-10 14:57:10 +00:00
}
/*
* Generate a ptc.ga instruction.
*/
static __inline void
ia64_ptc_ga(u_int64_t va, u_int64_t log2size)
{
For ia64_ptc_{e,g,ga,l}(), use instruction serialization. We typically don't know what the TLB described and need to assume that it affects the fetching of instructions.
2005-08-06 19:54:31 +00:00
__asm __volatile("ptc.ga %0,%1;; srlz.i;;" :: "r"(va), "r"(log2size));
* Add rudimentary DDB support (no kgdb, no backtrace, no single step). * Track recent changes to SWI code. * Allocate RIDs for pmaps (untested). * Implement assembler version of cpu_switch - its cleaner that way.
2000-10-10 14:57:10 +00:00
}
/*
* Generate a ptc.l instruction.
*/
static __inline void
ia64_ptc_l(u_int64_t va, u_int64_t log2size)
{
For ia64_ptc_{e,g,ga,l}(), use instruction serialization. We typically don't know what the TLB described and need to assume that it affects the fetching of instructions.
2005-08-06 19:54:31 +00:00
__asm __volatile("ptc.l %0,%1;; srlz.i;;" :: "r"(va), "r"(log2size));
* Add rudimentary DDB support (no kgdb, no backtrace, no single step). * Track recent changes to SWI code. * Allocate RIDs for pmaps (untested). * Implement assembler version of cpu_switch - its cleaner that way.
2000-10-10 14:57:10 +00:00
}
Add a inline function to read the psr.
2001-02-22 15:39:58 +00:00
/*
* Read the value of psr.
*/
static __inline u_int64_t
ia64_get_psr(void)
{
u_int64_t result;
__asm __volatile("mov %0=psr;;" : "=r" (result));
return result;
}
Add ia64_set_fpsr().
2001-10-21 14:00:59 +00:00
/*
Define a complete set of accessors for application and control registers.
2002-04-09 09:03:30 +00:00
* Define accessors for application registers.
*/
#define IA64_AR(name) \
\
static __inline u_int64_t \
ia64_get_##name(void) \
{ \
u_int64_t result; \
__asm __volatile("mov %0=ar." #name : "=r" (result)); \
return result; \
} \
\
static __inline void \
ia64_set_##name(u_int64_t v) \
{ \
Add an instruction group break after the move to application register and the move to control register to avoid dependency violations when these functions are used. Note that explicit data and instruction serialization also need to be in a subsequent instruction group. This too requires that we have an igrp break here.
2003-08-15 05:46:33 +00:00
__asm __volatile("mov ar." #name "=%0;;" :: "r" (v)); \
Define a complete set of accessors for application and control registers.
2002-04-09 09:03:30 +00:00
}
IA64_AR(k0)
IA64_AR(k1)
IA64_AR(k2)
IA64_AR(k3)
IA64_AR(k4)
IA64_AR(k5)
IA64_AR(k6)
IA64_AR(k7)
IA64_AR(rsc)
IA64_AR(bsp)
IA64_AR(bspstore)
IA64_AR(rnat)
IA64_AR(fcr)
IA64_AR(eflag)
IA64_AR(csd)
IA64_AR(ssd)
IA64_AR(cflg)
IA64_AR(fsr)
IA64_AR(fir)
IA64_AR(fdr)
IA64_AR(ccv)
IA64_AR(unat)
IA64_AR(fpsr)
IA64_AR(itc)
IA64_AR(pfs)
IA64_AR(lc)
IA64_AR(ec)
/*
* Define accessors for control registers.
*/
#define IA64_CR(name) \
\
static __inline u_int64_t \
ia64_get_##name(void) \
{ \
u_int64_t result; \
__asm __volatile("mov %0=cr." #name : "=r" (result)); \
return result; \
} \
\
static __inline void \
ia64_set_##name(u_int64_t v) \
{ \
Add an instruction group break after the move to application register and the move to control register to avoid dependency violations when these functions are used. Note that explicit data and instruction serialization also need to be in a subsequent instruction group. This too requires that we have an igrp break here.
2003-08-15 05:46:33 +00:00
__asm __volatile("mov cr." #name "=%0;;" :: "r" (v)); \
Define a complete set of accessors for application and control registers.
2002-04-09 09:03:30 +00:00
}
IA64_CR(dcr)
IA64_CR(itm)
IA64_CR(iva)
IA64_CR(pta)
IA64_CR(ipsr)
IA64_CR(isr)
IA64_CR(iip)
IA64_CR(ifa)
IA64_CR(itir)
IA64_CR(iipa)
IA64_CR(ifs)
IA64_CR(iim)
IA64_CR(iha)
IA64_CR(lid)
IA64_CR(ivr)
IA64_CR(tpr)
IA64_CR(eoi)
IA64_CR(irr0)
IA64_CR(irr1)
IA64_CR(irr2)
IA64_CR(irr3)
IA64_CR(itv)
IA64_CR(pmv)
IA64_CR(cmcv)
IA64_CR(lrr0)
IA64_CR(lrr1)
Add ia64_sync_i(), ia64_get_tpr() and ia64_set_tpr().
2002-03-14 12:29:55 +00:00
Next round of ia64 work, including fixes to context switching, implementing cpu_fork(), copy*str(), bcopy(), copy{in,out}(). With these changes, my test kernel reaches the mountroot prompt.
2000-09-30 17:48:44 +00:00
/*
* Write a region register.
*/
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
static __inline void
ia64_set_rr(u_int64_t rrbase, u_int64_t v)
{
In ia64_set_rr(), don't perform data serialization. This allows us to do the data serializations once after writing multiple region registers, as is done in pmap_switch(). All existing calls to ia64_set_rr() are followed with calls to ia64_srlz_d(). Approved by: re (blanket)
2007-08-05 18:19:38 +00:00
__asm __volatile("mov rr[%0]=%1"
Add data serialisations after ptc and mov to rr[] instructions.
2001-10-23 10:20:04 +00:00
:: "r"(rrbase), "r"(v) : "memory");
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
}
Add ia64_get_cpuid().
2001-09-18 15:21:18 +00:00
/*
* Read a CPUID register.
*/
static __inline u_int64_t
ia64_get_cpuid(int i)
{
u_int64_t result;
__asm __volatile("mov %0=cpuid[%1]"
: "=r" (result) : "r"(i));
return result;
}
Enable the high FP registers when we call the FPSWA handler and disable them again afterwards. This fixes a disabled FP fault while in the FPSWA handler. While here, merge the FP fault and FP trap handling code to reduce code duplication. Where code was different, it was not sure it should be. Trigger case: ports/math/atlas
2003-07-13 04:08:16 +00:00
static __inline void
ia64_disable_highfp(void)
{
__asm __volatile("ssm psr.dfh;; srlz.d");
}
static __inline void
ia64_enable_highfp(void)
{
__asm __volatile("rsm psr.dfh;; srlz.d");
}
Add ia64_srlz_d() and ia64_srlz_i() functions to aid in serialization. Approved by: re (blanket)
2007-08-04 19:26:42 +00:00
static __inline void
ia64_srlz_d(void)
{
__asm __volatile("srlz.d");
}
static __inline void
ia64_srlz_i(void)
{
__asm __volatile("srlz.i;;");
}
Enable the high FP registers when we call the FPSWA handler and disable them again afterwards. This fixes a disabled FP fault while in the FPSWA handler. While here, merge the FP fault and FP trap handling code to reduce code duplication. Where code was different, it was not sure it should be. Trigger case: ports/math/atlas
2003-07-13 04:08:16 +00:00
#endif /* !LOCORE */
* Various fixes to breakage introduced by the atomic and mutex reorgs. * Fixes to the signal delivery code. Not quite right yet. I would have preferred to wait until I have signal delivery actually working but the current kernel in CVS doesn't build.
2000-10-24 19:54:38 +00:00
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
#endif /* _MACHINE_IA64_CPU_H_ */
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