2005-09-23 19:08:58 +00:00
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#ifndef __ASM_POWERPC_CPUTABLE_H
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#define __ASM_POWERPC_CPUTABLE_H
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#define PPC_FEATURE_32 0x80000000
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#define PPC_FEATURE_64 0x40000000
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#define PPC_FEATURE_601_INSTR 0x20000000
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#define PPC_FEATURE_HAS_ALTIVEC 0x10000000
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#define PPC_FEATURE_HAS_FPU 0x08000000
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#define PPC_FEATURE_HAS_MMU 0x04000000
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#define PPC_FEATURE_HAS_4xxMAC 0x02000000
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#define PPC_FEATURE_UNIFIED_CACHE 0x01000000
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#define PPC_FEATURE_HAS_SPE 0x00800000
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#define PPC_FEATURE_HAS_EFP_SINGLE 0x00400000
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#define PPC_FEATURE_HAS_EFP_DOUBLE 0x00200000
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2005-10-22 06:51:34 +00:00
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#define PPC_FEATURE_NO_TB 0x00100000
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2005-11-10 03:29:18 +00:00
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#define PPC_FEATURE_POWER4 0x00080000
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#define PPC_FEATURE_POWER5 0x00040000
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#define PPC_FEATURE_POWER5_PLUS 0x00020000
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#define PPC_FEATURE_CELL 0x00010000
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2006-01-13 23:11:39 +00:00
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#define PPC_FEATURE_BOOKE 0x00008000
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2006-03-01 04:07:07 +00:00
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#define PPC_FEATURE_SMT 0x00004000
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#define PPC_FEATURE_ICACHE_SNOOP 0x00002000
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2006-04-28 23:51:06 +00:00
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#define PPC_FEATURE_ARCH_2_05 0x00001000
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2006-09-06 19:35:57 +00:00
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#define PPC_FEATURE_PA6T 0x00000800
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2006-11-10 09:38:53 +00:00
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#define PPC_FEATURE_HAS_DFP 0x00000400
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#define PPC_FEATURE_POWER6_EXT 0x00000200
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2008-06-18 00:47:26 +00:00
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#define PPC_FEATURE_ARCH_2_06 0x00000100
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2008-06-25 04:07:18 +00:00
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#define PPC_FEATURE_HAS_VSX 0x00000080
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2005-09-23 19:08:58 +00:00
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2008-07-09 15:06:57 +00:00
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#define PPC_FEATURE_PSERIES_PERFMON_COMPAT \
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0x00000040
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2006-06-07 06:14:40 +00:00
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#define PPC_FEATURE_TRUE_LE 0x00000002
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#define PPC_FEATURE_PPC_LE 0x00000001
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2005-09-23 19:08:58 +00:00
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#ifdef __KERNEL__
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2008-06-23 17:48:21 +00:00
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#include <asm/asm-compat.h>
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2008-06-24 01:32:39 +00:00
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#include <asm/feature-fixups.h>
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2008-06-23 17:48:21 +00:00
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2005-09-23 19:08:58 +00:00
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#ifndef __ASSEMBLY__
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/* This structure can grow, it's real size is used by head.S code
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* via the mkdefs mechanism.
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*/
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struct cpu_spec;
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typedef void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
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2006-08-11 05:07:08 +00:00
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typedef void (*cpu_restore_t)(void);
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2005-09-23 19:08:58 +00:00
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2006-01-09 04:41:31 +00:00
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enum powerpc_oprofile_type {
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2006-01-13 12:35:49 +00:00
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PPC_OPROFILE_INVALID = 0,
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PPC_OPROFILE_RS64 = 1,
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PPC_OPROFILE_POWER4 = 2,
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PPC_OPROFILE_G4 = 3,
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2008-02-05 00:27:55 +00:00
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PPC_OPROFILE_FSL_EMB = 4,
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[POWERPC] cell: Add oprofile support
Add PPU event-based and cycle-based profiling support to Oprofile for Cell.
Oprofile is expected to collect data on all CPUs simultaneously.
However, there is one set of performance counters per node. There are
two hardware threads or virtual CPUs on each node. Hence, OProfile must
multiplex in time the performance counter collection on the two virtual
CPUs.
The multiplexing of the performance counters is done by a virtual
counter routine. Initially, the counters are configured to collect data
on the even CPUs in the system, one CPU per node. In order to capture
the PC for the virtual CPU when the performance counter interrupt occurs
(the specified number of events between samples has occurred), the even
processors are configured to handle the performance counter interrupts
for their node. The virtual counter routine is called via a kernel
timer after the virtual sample time. The routine stops the counters,
saves the current counts, loads the last counts for the other virtual
CPU on the node, sets interrupts to be handled by the other virtual CPU
and restarts the counters, the virtual timer routine is scheduled to run
again. The virtual sample time is kept relatively small to make sure
sampling occurs on both CPUs on the node with a relatively small
granularity. Whenever the counters overflow, the performance counter
interrupt is called to collect the PC for the CPU where data is being
collected.
The oprofile driver relies on a firmware RTAS call to setup the debug bus
to route the desired signals to the performance counter hardware to be
counted. The RTAS call must set the routing registers appropriately in
each of the islands to pass the signals down the debug bus as well as
routing the signals from a particular island onto the bus. There is a
second firmware RTAS call to reset the debug bus to the non pass thru
state when the counters are not in use.
Signed-off-by: Carl Love <carll@us.ibm.com>
Signed-off-by: Maynard Johnson <mpjohn@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-11-20 17:45:16 +00:00
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PPC_OPROFILE_CELL = 5,
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2007-04-18 06:38:21 +00:00
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PPC_OPROFILE_PA6T = 6,
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2006-01-09 04:41:31 +00:00
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};
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2007-01-29 03:23:54 +00:00
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enum powerpc_pmc_type {
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PPC_PMC_DEFAULT = 0,
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PPC_PMC_IBM = 1,
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PPC_PMC_PA6T = 2,
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};
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2007-12-21 04:39:21 +00:00
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struct pt_regs;
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extern int machine_check_generic(struct pt_regs *regs);
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extern int machine_check_4xx(struct pt_regs *regs);
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extern int machine_check_440A(struct pt_regs *regs);
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extern int machine_check_e500(struct pt_regs *regs);
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extern int machine_check_e200(struct pt_regs *regs);
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[POWERPC] Fix performance monitor on machines with logical PVR
Some IBM machines supply a "logical" PVR (processor version register)
value in the device tree in the cpu nodes rather than the real PVR.
This is used for instance to indicate that the processors in a POWER6
partition have been configured by the hypervisor to run in POWER5+
mode rather than POWER6 mode. To cope with this, we call identify_cpu
a second time with the logical PVR value (the first call is with the
real PVR value in the very early setup code).
However, POWER5+ machines can also supply a logical PVR value, and use
the same value (the value that indicates a v2.04 architecture
compliant processor). This causes problems for code that uses the
performance monitor (such as oprofile), because the PMU registers are
different in POWER6 (even in POWER5+ mode) from the real POWER5+.
This change works around this problem by taking out the PMU
information from the cputable entries for the logical PVR values, and
changing identify_cpu so that the second call to it won't overwrite
the PMU information that was established by the first call (the one
with the real PVR), but does update the other fields. Specifically,
if the cputable entry for the logical PVR value has num_pmcs == 0,
none of the PMU-related fields get used.
So that we can create a mixed cputable entry, we now make cur_cpu_spec
point to a single static struct cpu_spec, and copy stuff from
cpu_specs[i] into it. This has the side-effect that we can now make
cpu_specs[] be initdata.
Ultimately it would be good to move the PMU-related fields out to a
separate structure, pointed to by the cputable entries, and change
identify_cpu so that it saves the PMU info pointer, copies the whole
structure, and restores the PMU info pointer, rather than identify_cpu
having to list all the fields that are *not* PMU-related.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2007-10-04 04:18:01 +00:00
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/* NOTE WELL: Update identify_cpu() if fields are added or removed! */
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2005-09-23 19:08:58 +00:00
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struct cpu_spec {
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/* CPU is matched via (PVR & pvr_mask) == pvr_value */
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unsigned int pvr_mask;
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unsigned int pvr_value;
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char *cpu_name;
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unsigned long cpu_features; /* Kernel features */
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unsigned int cpu_user_features; /* Userland features */
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/* cache line sizes */
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unsigned int icache_bsize;
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unsigned int dcache_bsize;
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/* number of performance monitor counters */
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unsigned int num_pmcs;
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2007-01-29 03:23:54 +00:00
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enum powerpc_pmc_type pmc_type;
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2005-09-23 19:08:58 +00:00
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/* this is called to initialize various CPU bits like L1 cache,
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* BHT, SPD, etc... from head.S before branching to identify_machine
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*/
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cpu_setup_t cpu_setup;
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2006-08-11 05:07:08 +00:00
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/* Used to restore cpu setup on secondary processors and at resume */
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cpu_restore_t cpu_restore;
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2005-09-23 19:08:58 +00:00
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/* Used by oprofile userspace to select the right counters */
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char *oprofile_cpu_type;
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/* Processor specific oprofile operations */
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2006-01-09 04:41:31 +00:00
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enum powerpc_oprofile_type oprofile_type;
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2006-01-13 23:11:39 +00:00
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2006-06-08 04:42:34 +00:00
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/* Bit locations inside the mmcra change */
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unsigned long oprofile_mmcra_sihv;
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unsigned long oprofile_mmcra_sipr;
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/* Bits to clear during an oprofile exception */
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unsigned long oprofile_mmcra_clear;
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2006-01-13 23:11:39 +00:00
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/* Name of processor class, for the ELF AT_PLATFORM entry */
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char *platform;
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2007-12-21 04:39:21 +00:00
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/* Processor specific machine check handling. Return negative
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* if the error is fatal, 1 if it was fully recovered and 0 to
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* pass up (not CPU originated) */
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int (*machine_check)(struct pt_regs *regs);
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2005-09-23 19:08:58 +00:00
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};
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extern struct cpu_spec *cur_cpu_spec;
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2006-10-24 06:42:40 +00:00
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extern unsigned int __start___ftr_fixup, __stop___ftr_fixup;
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2006-11-10 09:38:53 +00:00
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extern struct cpu_spec *identify_cpu(unsigned long offset, unsigned int pvr);
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2006-10-20 01:47:18 +00:00
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extern void do_feature_fixups(unsigned long value, void *fixup_start,
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void *fixup_end);
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2005-10-06 02:06:20 +00:00
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2005-09-23 19:08:58 +00:00
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#endif /* __ASSEMBLY__ */
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/* CPU kernel features */
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/* Retain the 32b definitions all use bottom half of word */
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[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
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#define CPU_FTR_COHERENT_ICACHE ASM_CONST(0x0000000000000001)
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2005-09-23 19:08:58 +00:00
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#define CPU_FTR_L2CR ASM_CONST(0x0000000000000002)
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#define CPU_FTR_SPEC7450 ASM_CONST(0x0000000000000004)
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#define CPU_FTR_ALTIVEC ASM_CONST(0x0000000000000008)
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#define CPU_FTR_TAU ASM_CONST(0x0000000000000010)
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#define CPU_FTR_CAN_DOZE ASM_CONST(0x0000000000000020)
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#define CPU_FTR_USE_TB ASM_CONST(0x0000000000000040)
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2008-06-19 14:40:31 +00:00
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#define CPU_FTR_L2CSR ASM_CONST(0x0000000000000080)
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2005-09-23 19:08:58 +00:00
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#define CPU_FTR_601 ASM_CONST(0x0000000000000100)
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#define CPU_FTR_HPTE_TABLE ASM_CONST(0x0000000000000200)
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#define CPU_FTR_CAN_NAP ASM_CONST(0x0000000000000400)
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#define CPU_FTR_L3CR ASM_CONST(0x0000000000000800)
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#define CPU_FTR_L3_DISABLE_NAP ASM_CONST(0x0000000000001000)
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#define CPU_FTR_NAP_DISABLE_L2_PR ASM_CONST(0x0000000000002000)
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#define CPU_FTR_DUAL_PLL_750FX ASM_CONST(0x0000000000004000)
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#define CPU_FTR_NO_DPM ASM_CONST(0x0000000000008000)
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#define CPU_FTR_HAS_HIGH_BATS ASM_CONST(0x0000000000010000)
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#define CPU_FTR_NEED_COHERENT ASM_CONST(0x0000000000020000)
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#define CPU_FTR_NO_BTIC ASM_CONST(0x0000000000040000)
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#define CPU_FTR_BIG_PHYS ASM_CONST(0x0000000000080000)
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2006-03-21 09:45:58 +00:00
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#define CPU_FTR_NODSISRALIGN ASM_CONST(0x0000000000100000)
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2006-06-07 06:14:40 +00:00
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#define CPU_FTR_PPC_LE ASM_CONST(0x0000000000200000)
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#define CPU_FTR_REAL_LE ASM_CONST(0x0000000000400000)
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2006-12-08 08:43:30 +00:00
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#define CPU_FTR_FPU_UNAVAILABLE ASM_CONST(0x0000000000800000)
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[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
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#define CPU_FTR_UNIFIED_ID_CACHE ASM_CONST(0x0000000001000000)
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2007-09-13 06:44:20 +00:00
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#define CPU_FTR_SPE ASM_CONST(0x0000000002000000)
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2007-11-09 22:17:49 +00:00
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#define CPU_FTR_NEED_PAIRED_STWCX ASM_CONST(0x0000000004000000)
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2008-07-01 15:16:40 +00:00
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#define CPU_FTR_LWSYNC ASM_CONST(0x0000000008000000)
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2005-09-23 19:08:58 +00:00
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2006-06-28 03:50:39 +00:00
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/*
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* Add the 64-bit processor unique features in the top half of the word;
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* on 32-bit, make the names available but defined to be 0.
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*/
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2005-09-23 19:08:58 +00:00
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#ifdef __powerpc64__
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2006-06-28 03:50:39 +00:00
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#define LONG_ASM_CONST(x) ASM_CONST(x)
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2005-09-23 19:08:58 +00:00
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#else
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2006-06-28 03:50:39 +00:00
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#define LONG_ASM_CONST(x) 0
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2005-09-23 19:08:58 +00:00
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#endif
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2006-06-28 03:50:39 +00:00
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#define CPU_FTR_SLB LONG_ASM_CONST(0x0000000100000000)
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#define CPU_FTR_16M_PAGE LONG_ASM_CONST(0x0000000200000000)
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#define CPU_FTR_TLBIEL LONG_ASM_CONST(0x0000000400000000)
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#define CPU_FTR_NOEXECUTE LONG_ASM_CONST(0x0000000800000000)
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#define CPU_FTR_IABR LONG_ASM_CONST(0x0000002000000000)
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#define CPU_FTR_MMCRA LONG_ASM_CONST(0x0000004000000000)
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#define CPU_FTR_CTRL LONG_ASM_CONST(0x0000008000000000)
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#define CPU_FTR_SMT LONG_ASM_CONST(0x0000010000000000)
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#define CPU_FTR_LOCKLESS_TLBIE LONG_ASM_CONST(0x0000040000000000)
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#define CPU_FTR_CI_LARGE_PAGE LONG_ASM_CONST(0x0000100000000000)
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#define CPU_FTR_PAUSE_ZERO LONG_ASM_CONST(0x0000200000000000)
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#define CPU_FTR_PURR LONG_ASM_CONST(0x0000400000000000)
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2006-10-20 04:37:05 +00:00
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#define CPU_FTR_CELL_TB_BUG LONG_ASM_CONST(0x0000800000000000)
|
2006-11-10 09:38:53 +00:00
|
|
|
#define CPU_FTR_SPURR LONG_ASM_CONST(0x0001000000000000)
|
2006-12-08 06:46:58 +00:00
|
|
|
#define CPU_FTR_DSCR LONG_ASM_CONST(0x0002000000000000)
|
2007-10-11 10:37:10 +00:00
|
|
|
#define CPU_FTR_1T_SEGMENT LONG_ASM_CONST(0x0004000000000000)
|
2007-10-15 14:58:59 +00:00
|
|
|
#define CPU_FTR_NO_SLBIE_B LONG_ASM_CONST(0x0008000000000000)
|
2008-06-25 04:07:18 +00:00
|
|
|
#define CPU_FTR_VSX LONG_ASM_CONST(0x0010000000000000)
|
2008-07-07 14:28:53 +00:00
|
|
|
#define CPU_FTR_SAO LONG_ASM_CONST(0x0020000000000000)
|
2006-06-28 03:50:39 +00:00
|
|
|
|
2005-09-23 19:08:58 +00:00
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
|
|
2006-11-30 00:46:22 +00:00
|
|
|
#define CPU_FTR_PPCAS_ARCH_V2 (CPU_FTR_SLB | \
|
|
|
|
|
CPU_FTR_TLBIEL | CPU_FTR_NOEXECUTE | \
|
|
|
|
|
CPU_FTR_NODSISRALIGN | CPU_FTR_16M_PAGE)
|
2005-09-23 19:08:58 +00:00
|
|
|
|
|
|
|
|
/* We only set the altivec features if the kernel was compiled with altivec
|
|
|
|
|
* support
|
|
|
|
|
*/
|
|
|
|
|
#ifdef CONFIG_ALTIVEC
|
|
|
|
|
#define CPU_FTR_ALTIVEC_COMP CPU_FTR_ALTIVEC
|
|
|
|
|
#define PPC_FEATURE_HAS_ALTIVEC_COMP PPC_FEATURE_HAS_ALTIVEC
|
|
|
|
|
#else
|
|
|
|
|
#define CPU_FTR_ALTIVEC_COMP 0
|
|
|
|
|
#define PPC_FEATURE_HAS_ALTIVEC_COMP 0
|
|
|
|
|
#endif
|
|
|
|
|
|
2008-06-25 04:07:18 +00:00
|
|
|
/* We only set the VSX features if the kernel was compiled with VSX
|
|
|
|
|
* support
|
|
|
|
|
*/
|
|
|
|
|
#ifdef CONFIG_VSX
|
|
|
|
|
#define CPU_FTR_VSX_COMP CPU_FTR_VSX
|
|
|
|
|
#define PPC_FEATURE_HAS_VSX_COMP PPC_FEATURE_HAS_VSX
|
|
|
|
|
#else
|
|
|
|
|
#define CPU_FTR_VSX_COMP 0
|
|
|
|
|
#define PPC_FEATURE_HAS_VSX_COMP 0
|
|
|
|
|
#endif
|
|
|
|
|
|
2007-09-13 06:44:20 +00:00
|
|
|
/* We only set the spe features if the kernel was compiled with spe
|
|
|
|
|
* support
|
|
|
|
|
*/
|
|
|
|
|
#ifdef CONFIG_SPE
|
|
|
|
|
#define CPU_FTR_SPE_COMP CPU_FTR_SPE
|
|
|
|
|
#define PPC_FEATURE_HAS_SPE_COMP PPC_FEATURE_HAS_SPE
|
|
|
|
|
#define PPC_FEATURE_HAS_EFP_SINGLE_COMP PPC_FEATURE_HAS_EFP_SINGLE
|
|
|
|
|
#define PPC_FEATURE_HAS_EFP_DOUBLE_COMP PPC_FEATURE_HAS_EFP_DOUBLE
|
|
|
|
|
#else
|
|
|
|
|
#define CPU_FTR_SPE_COMP 0
|
|
|
|
|
#define PPC_FEATURE_HAS_SPE_COMP 0
|
|
|
|
|
#define PPC_FEATURE_HAS_EFP_SINGLE_COMP 0
|
|
|
|
|
#define PPC_FEATURE_HAS_EFP_DOUBLE_COMP 0
|
|
|
|
|
#endif
|
|
|
|
|
|
2007-09-14 20:32:14 +00:00
|
|
|
/* We need to mark all pages as being coherent if we're SMP or we have a
|
|
|
|
|
* 74[45]x and an MPC107 host bridge. Also 83xx and PowerQUICC II
|
|
|
|
|
* require it for PCI "streaming/prefetch" to work properly.
|
2005-09-23 19:08:58 +00:00
|
|
|
*/
|
2006-02-22 15:46:02 +00:00
|
|
|
#if defined(CONFIG_SMP) || defined(CONFIG_MPC10X_BRIDGE) \
|
2007-09-14 20:32:14 +00:00
|
|
|
|| defined(CONFIG_PPC_83xx) || defined(CONFIG_8260)
|
2005-09-23 19:08:58 +00:00
|
|
|
#define CPU_FTR_COMMON CPU_FTR_NEED_COHERENT
|
|
|
|
|
#else
|
|
|
|
|
#define CPU_FTR_COMMON 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* The powersave features NAP & DOZE seems to confuse BDI when
|
|
|
|
|
debugging. So if a BDI is used, disable theses
|
|
|
|
|
*/
|
|
|
|
|
#ifndef CONFIG_BDI_SWITCH
|
|
|
|
|
#define CPU_FTR_MAYBE_CAN_DOZE CPU_FTR_CAN_DOZE
|
|
|
|
|
#define CPU_FTR_MAYBE_CAN_NAP CPU_FTR_CAN_NAP
|
|
|
|
|
#else
|
|
|
|
|
#define CPU_FTR_MAYBE_CAN_DOZE 0
|
|
|
|
|
#define CPU_FTR_MAYBE_CAN_NAP 0
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#define CLASSIC_PPC (!defined(CONFIG_8xx) && !defined(CONFIG_4xx) && \
|
|
|
|
|
!defined(CONFIG_POWER3) && !defined(CONFIG_POWER4) && \
|
|
|
|
|
!defined(CONFIG_BOOKE))
|
|
|
|
|
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_PPC601 (CPU_FTR_COMMON | CPU_FTR_601 | CPU_FTR_HPTE_TABLE | \
|
|
|
|
|
CPU_FTR_COHERENT_ICACHE | CPU_FTR_UNIFIED_ID_CACHE)
|
|
|
|
|
#define CPU_FTRS_603 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_604 (CPU_FTR_COMMON | \
|
2008-06-19 14:40:31 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_740_NOTAU (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_740 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
|
|
|
|
|
CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_750 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_TAU | CPU_FTR_HPTE_TABLE | CPU_FTR_MAYBE_CAN_NAP | \
|
|
|
|
|
CPU_FTR_PPC_LE)
|
2007-07-02 16:06:53 +00:00
|
|
|
#define CPU_FTRS_750CL (CPU_FTRS_750 | CPU_FTR_HAS_HIGH_BATS)
|
|
|
|
|
#define CPU_FTRS_750FX1 (CPU_FTRS_750 | CPU_FTR_DUAL_PLL_750FX | CPU_FTR_NO_DPM)
|
|
|
|
|
#define CPU_FTRS_750FX2 (CPU_FTRS_750 | CPU_FTR_NO_DPM)
|
|
|
|
|
#define CPU_FTRS_750FX (CPU_FTRS_750 | CPU_FTR_DUAL_PLL_750FX | \
|
|
|
|
|
CPU_FTR_HAS_HIGH_BATS)
|
|
|
|
|
#define CPU_FTRS_750GX (CPU_FTRS_750FX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7400_NOTAU (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
|
|
|
|
|
CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7400 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | CPU_FTR_L2CR | \
|
|
|
|
|
CPU_FTR_TAU | CPU_FTR_ALTIVEC_COMP | CPU_FTR_HPTE_TABLE | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7450_20 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_PPC_LE | CPU_FTR_NEED_PAIRED_STWCX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7450_21 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
|
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_L3_DISABLE_NAP | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_PPC_LE | CPU_FTR_NEED_PAIRED_STWCX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7450_23 (CPU_FTR_COMMON | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_NEED_PAIRED_STWCX | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_NEED_COHERENT | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7455_1 (CPU_FTR_COMMON | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_NEED_PAIRED_STWCX | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | CPU_FTR_L3CR | \
|
|
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | CPU_FTR_HAS_HIGH_BATS | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7455_20 (CPU_FTR_COMMON | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_NEED_PAIRED_STWCX | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
|
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_L3_DISABLE_NAP | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_HAS_HIGH_BATS | CPU_FTR_PPC_LE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7455 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
|
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_PPC_LE | CPU_FTR_NEED_PAIRED_STWCX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7447_10 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
|
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_NO_BTIC | CPU_FTR_PPC_LE | \
|
|
|
|
|
CPU_FTR_NEED_PAIRED_STWCX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7447 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_L3CR | CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
|
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_PPC_LE | CPU_FTR_NEED_PAIRED_STWCX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7447A (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
|
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_NEED_COHERENT | CPU_FTR_PPC_LE | CPU_FTR_NEED_PAIRED_STWCX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_7448 (CPU_FTR_COMMON | \
|
2007-05-02 21:34:43 +00:00
|
|
|
CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_L2CR | CPU_FTR_ALTIVEC_COMP | \
|
|
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_SPEC7450 | \
|
|
|
|
|
CPU_FTR_NAP_DISABLE_L2_PR | CPU_FTR_HAS_HIGH_BATS | \
|
2007-11-09 22:17:49 +00:00
|
|
|
CPU_FTR_PPC_LE | CPU_FTR_NEED_PAIRED_STWCX)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_82XX (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB)
|
2007-09-14 20:32:14 +00:00
|
|
|
#define CPU_FTRS_G2_LE (CPU_FTR_COMMON | CPU_FTR_MAYBE_CAN_DOZE | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_E300 (CPU_FTR_MAYBE_CAN_DOZE | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS | \
|
|
|
|
|
CPU_FTR_COMMON)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_E300C2 (CPU_FTR_MAYBE_CAN_DOZE | \
|
2006-12-08 08:43:30 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS | \
|
|
|
|
|
CPU_FTR_COMMON | CPU_FTR_FPU_UNAVAILABLE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_CLASSIC32 (CPU_FTR_COMMON | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_8XX (CPU_FTR_USE_TB)
|
|
|
|
|
#define CPU_FTRS_40X (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN)
|
|
|
|
|
#define CPU_FTRS_44X (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN)
|
2007-09-13 06:44:20 +00:00
|
|
|
#define CPU_FTRS_E200 (CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \
|
|
|
|
|
CPU_FTR_NODSISRALIGN | CPU_FTR_COHERENT_ICACHE | \
|
|
|
|
|
CPU_FTR_UNIFIED_ID_CACHE)
|
2008-06-18 21:26:52 +00:00
|
|
|
#define CPU_FTRS_E500 (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_SPE_COMP | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_NODSISRALIGN)
|
|
|
|
|
#define CPU_FTRS_E500_2 (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
|
|
|
|
|
CPU_FTR_SPE_COMP | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_BIG_PHYS | \
|
2008-06-16 14:41:32 +00:00
|
|
|
CPU_FTR_NODSISRALIGN)
|
2008-06-18 21:26:52 +00:00
|
|
|
#define CPU_FTRS_E500MC (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \
|
2008-06-19 14:40:31 +00:00
|
|
|
CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_BIG_PHYS | CPU_FTR_NODSISRALIGN | \
|
2008-07-01 15:16:40 +00:00
|
|
|
CPU_FTR_L2CSR | CPU_FTR_LWSYNC)
|
2006-03-23 06:36:59 +00:00
|
|
|
#define CPU_FTRS_GENERIC_32 (CPU_FTR_COMMON | CPU_FTR_NODSISRALIGN)
|
2006-11-22 23:46:46 +00:00
|
|
|
|
|
|
|
|
/* 64-bit CPUs */
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_POWER3 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-06-07 06:14:40 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_IABR | CPU_FTR_PPC_LE)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_RS64 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_IABR | \
|
|
|
|
|
CPU_FTR_MMCRA | CPU_FTR_CTRL)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_POWER4 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-09-06 19:35:19 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
|
|
|
|
|
CPU_FTR_MMCRA)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_PPC970 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-09-06 19:35:19 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_ALTIVEC_COMP | CPU_FTR_CAN_NAP | CPU_FTR_MMCRA)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_POWER5 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-09-06 19:35:19 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_MMCRA | CPU_FTR_SMT | \
|
|
|
|
|
CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
|
2006-06-08 04:42:34 +00:00
|
|
|
CPU_FTR_PURR)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_POWER6 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-09-06 19:35:19 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
|
2006-04-28 23:51:06 +00:00
|
|
|
CPU_FTR_MMCRA | CPU_FTR_SMT | \
|
|
|
|
|
CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
|
2006-12-08 06:46:58 +00:00
|
|
|
CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
|
|
|
|
|
CPU_FTR_DSCR)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_POWER7 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2008-06-18 00:47:26 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
|
|
|
|
|
CPU_FTR_MMCRA | CPU_FTR_SMT | \
|
|
|
|
|
CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
|
|
|
|
|
CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
|
2008-07-07 14:28:53 +00:00
|
|
|
CPU_FTR_DSCR | CPU_FTR_SAO)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_CELL (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-09-06 19:35:19 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
|
2006-10-20 04:37:05 +00:00
|
|
|
CPU_FTR_PAUSE_ZERO | CPU_FTR_CI_LARGE_PAGE | CPU_FTR_CELL_TB_BUG)
|
2008-07-01 15:16:40 +00:00
|
|
|
#define CPU_FTRS_PA6T (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
|
2006-09-06 19:35:57 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \
|
|
|
|
|
CPU_FTR_ALTIVEC_COMP | CPU_FTR_CI_LARGE_PAGE | \
|
2007-10-15 14:58:59 +00:00
|
|
|
CPU_FTR_PURR | CPU_FTR_REAL_LE | CPU_FTR_NO_SLBIE_B)
|
[POWERPC] Merge CPU features pertaining to icache coherency
Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially). It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.
In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).
This tries to clarify the situation a little. The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified. We check this, instead of
SPLIT_ID_CACHE nearly everywhere.
The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200. In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature. The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.
This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-13 04:52:57 +00:00
|
|
|
#define CPU_FTRS_COMPATIBLE (CPU_FTR_USE_TB | \
|
2006-03-23 06:36:59 +00:00
|
|
|
CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2)
|
2005-09-23 19:08:58 +00:00
|
|
|
|
2005-12-12 20:45:33 +00:00
|
|
|
#ifdef __powerpc64__
|
2006-03-23 06:36:59 +00:00
|
|
|
#define CPU_FTRS_POSSIBLE \
|
|
|
|
|
(CPU_FTRS_POWER3 | CPU_FTRS_RS64 | CPU_FTRS_POWER4 | \
|
2006-04-28 23:51:06 +00:00
|
|
|
CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | CPU_FTRS_POWER6 | \
|
2008-06-18 00:47:26 +00:00
|
|
|
CPU_FTRS_POWER7 | CPU_FTRS_CELL | CPU_FTRS_PA6T | \
|
2008-06-25 04:07:18 +00:00
|
|
|
CPU_FTR_1T_SEGMENT | CPU_FTR_VSX)
|
2005-12-12 20:45:33 +00:00
|
|
|
#else
|
2006-03-23 06:36:59 +00:00
|
|
|
enum {
|
|
|
|
|
CPU_FTRS_POSSIBLE =
|
2005-09-23 19:08:58 +00:00
|
|
|
#if CLASSIC_PPC
|
|
|
|
|
CPU_FTRS_PPC601 | CPU_FTRS_603 | CPU_FTRS_604 | CPU_FTRS_740_NOTAU |
|
|
|
|
|
CPU_FTRS_740 | CPU_FTRS_750 | CPU_FTRS_750FX1 |
|
|
|
|
|
CPU_FTRS_750FX2 | CPU_FTRS_750FX | CPU_FTRS_750GX |
|
|
|
|
|
CPU_FTRS_7400_NOTAU | CPU_FTRS_7400 | CPU_FTRS_7450_20 |
|
|
|
|
|
CPU_FTRS_7450_21 | CPU_FTRS_7450_23 | CPU_FTRS_7455_1 |
|
|
|
|
|
CPU_FTRS_7455_20 | CPU_FTRS_7455 | CPU_FTRS_7447_10 |
|
|
|
|
|
CPU_FTRS_7447 | CPU_FTRS_7447A | CPU_FTRS_82XX |
|
2006-12-08 08:43:30 +00:00
|
|
|
CPU_FTRS_G2_LE | CPU_FTRS_E300 | CPU_FTRS_E300C2 |
|
|
|
|
|
CPU_FTRS_CLASSIC32 |
|
2005-09-23 19:08:58 +00:00
|
|
|
#else
|
|
|
|
|
CPU_FTRS_GENERIC_32 |
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_8xx
|
|
|
|
|
CPU_FTRS_8XX |
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_40x
|
|
|
|
|
CPU_FTRS_40X |
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_44x
|
|
|
|
|
CPU_FTRS_44X |
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_E200
|
|
|
|
|
CPU_FTRS_E200 |
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_E500
|
2008-06-16 14:41:32 +00:00
|
|
|
CPU_FTRS_E500 | CPU_FTRS_E500_2 | CPU_FTRS_E500MC |
|
2005-09-23 19:08:58 +00:00
|
|
|
#endif
|
|
|
|
|
0,
|
2006-03-23 06:36:59 +00:00
|
|
|
};
|
|
|
|
|
#endif /* __powerpc64__ */
|
2005-09-23 19:08:58 +00:00
|
|
|
|
2005-12-12 20:45:33 +00:00
|
|
|
#ifdef __powerpc64__
|
2006-03-23 06:36:59 +00:00
|
|
|
#define CPU_FTRS_ALWAYS \
|
|
|
|
|
(CPU_FTRS_POWER3 & CPU_FTRS_RS64 & CPU_FTRS_POWER4 & \
|
2006-04-28 23:51:06 +00:00
|
|
|
CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & CPU_FTRS_POWER6 & \
|
2008-06-18 00:47:26 +00:00
|
|
|
CPU_FTRS_POWER7 & CPU_FTRS_CELL & CPU_FTRS_PA6T & CPU_FTRS_POSSIBLE)
|
2005-12-12 20:45:33 +00:00
|
|
|
#else
|
2006-03-23 06:36:59 +00:00
|
|
|
enum {
|
|
|
|
|
CPU_FTRS_ALWAYS =
|
2005-09-23 19:08:58 +00:00
|
|
|
#if CLASSIC_PPC
|
|
|
|
|
CPU_FTRS_PPC601 & CPU_FTRS_603 & CPU_FTRS_604 & CPU_FTRS_740_NOTAU &
|
|
|
|
|
CPU_FTRS_740 & CPU_FTRS_750 & CPU_FTRS_750FX1 &
|
|
|
|
|
CPU_FTRS_750FX2 & CPU_FTRS_750FX & CPU_FTRS_750GX &
|
|
|
|
|
CPU_FTRS_7400_NOTAU & CPU_FTRS_7400 & CPU_FTRS_7450_20 &
|
|
|
|
|
CPU_FTRS_7450_21 & CPU_FTRS_7450_23 & CPU_FTRS_7455_1 &
|
|
|
|
|
CPU_FTRS_7455_20 & CPU_FTRS_7455 & CPU_FTRS_7447_10 &
|
|
|
|
|
CPU_FTRS_7447 & CPU_FTRS_7447A & CPU_FTRS_82XX &
|
2006-12-08 08:43:30 +00:00
|
|
|
CPU_FTRS_G2_LE & CPU_FTRS_E300 & CPU_FTRS_E300C2 &
|
|
|
|
|
CPU_FTRS_CLASSIC32 &
|
2005-09-23 19:08:58 +00:00
|
|
|
#else
|
|
|
|
|
CPU_FTRS_GENERIC_32 &
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_8xx
|
|
|
|
|
CPU_FTRS_8XX &
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_40x
|
|
|
|
|
CPU_FTRS_40X &
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_44x
|
|
|
|
|
CPU_FTRS_44X &
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_E200
|
|
|
|
|
CPU_FTRS_E200 &
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef CONFIG_E500
|
2008-06-16 14:41:32 +00:00
|
|
|
CPU_FTRS_E500 & CPU_FTRS_E500_2 & CPU_FTRS_E500MC &
|
2005-09-23 19:08:58 +00:00
|
|
|
#endif
|
|
|
|
|
CPU_FTRS_POSSIBLE,
|
|
|
|
|
};
|
2006-03-23 06:36:59 +00:00
|
|
|
#endif /* __powerpc64__ */
|
2005-09-23 19:08:58 +00:00
|
|
|
|
|
|
|
|
static inline int cpu_has_feature(unsigned long feature)
|
|
|
|
|
{
|
|
|
|
|
return (CPU_FTRS_ALWAYS & feature) ||
|
|
|
|
|
(CPU_FTRS_POSSIBLE
|
|
|
|
|
& cur_cpu_spec->cpu_features
|
|
|
|
|
& feature);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
|
|
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
|
#endif /* __ASM_POWERPC_CPUTABLE_H */
|
