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/linux/arch/mips/cavium-octeon/
A DKconfig30 bool "Lock often used kernel code in the L2"
33 Enable locking parts of the kernel into the L2 cache.
36 bool "Lock the TLB handler in L2"
40 Lock the low level TLB fast path into L2.
43 bool "Lock the exception handler in L2"
47 Lock the low level exception handler into L2.
50 bool "Lock the interrupt handler in L2"
54 Lock the low level interrupt handler into L2.
57 bool "Lock the 2nd level interrupt handler in L2"
61 Lock the 2nd level interrupt handler in L2.
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/linux/Documentation/devicetree/bindings/powerpc/fsl/
A Dl2cache.txt1 Freescale L2 Cache Controller
3 L2 cache is present in Freescale's QorIQ and QorIQ Qonverge platforms.
48 - reg : Address and size of L2 cache controller registers
49 - cache-size : Size of the entire L2 cache
50 - interrupts : Error interrupt of L2 controller
51 - cache-line-size : Size of L2 cache lines
55 L2: l2-cache-controller@20000 {
59 cache-size = <0x40000>; // L2,256K
/linux/arch/arc/kernel/
A Dentry-compact.S152 ; if L2 IRQ interrupted a L1 ISR, disable preemption
154 ; This is to avoid a potential L1-L2-L1 scenario
156 ; -L2 interrupts L1 (before L1 ISR could run)
159 ; Returns from L2 context fine
160 ; But both L1 and L2 re-enabled, so another L1 can be taken
165 ; L2 interrupting L1 implies both L2 and L1 active
335 ; use the same priority as rtie: EXCPN, L2 IRQ, L1 IRQ, None
350 ; However the context returning might not have taken L2 intr itself
352 ; Special considerations needed for the context which took L2 intr
354 ld r9, [sp, PT_event] ; Ensure this is L2 intr context
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/linux/Documentation/devicetree/bindings/arm/
A Dl2c2x0.yaml7 title: ARM L2 Cache Controller
15 implementations of the L2 cache controller have compatible programming
21 Note 1: The description in this document doesn't apply to integrated L2
23 integrated L2 controllers are assumed to be all preconfigured by
45 # maintenance operations on L1 are broadcasted to the L2 and L2
124 description: If present then L2 is forced to Write through mode
166 description: enable parity checking on the L2 cache (L220 or PL310).
174 description: enable ECC protection on the L2 cache
178 description: disable the outer sync operation on the L2 cache.
200 L2 dynamic clock gating. Value: <0> (forcibly
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/linux/security/apparmor/include/
A Dlabel.h161 #define next_comb(I, L1, L2) \ argument
164 if ((I).j >= (L2)->size) { \
172 #define label_for_each_comb(I, L1, L2, P1, P2) \ argument
175 (I) = next_comb(I, L1, L2))
177 #define fn_for_each_comb(L1, L2, P1, P2, FN) \ argument
181 label_for_each_comb(i, (L1), (L2), (P1), (P2)) { \
241 #define fn_for_each2_XXX(L1, L2, P, FN, ...) \ argument
251 #define fn_for_each_in_merge(L1, L2, P, FN) \ argument
252 fn_for_each2_XXX((L1), (L2), P, FN, _in_merge)
253 #define fn_for_each_not_in_set(L1, L2, P, FN) \ argument
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A Dperms.h122 #define xcheck_ns_labels(L1, L2, FN, args...) \ argument
125 fn_for_each((L1), __p1, FN(__p1, (L2), args)); \
129 #define xcheck_labels_profiles(L1, L2, FN, args...) \ argument
130 xcheck_ns_labels((L1), (L2), xcheck_ns_profile_label, (FN), args)
132 #define xcheck_labels(L1, L2, P, FN1, FN2) \ argument
133 xcheck(fn_for_each((L1), (P), (FN1)), fn_for_each((L2), (P), (FN2)))
/linux/Documentation/virt/kvm/
A Drunning-nested-guests.rst12 | L2 | | L2 |
34 - L2 – level-2 guest; a VM running on L1, this is the "nested guest"
43 metal, running the LPAR hypervisor), L1 (host hypervisor), L2
47 L1, and L2) for all architectures; and will largely focus on
137 .. note:: If you suspect your L2 (i.e. nested guest) is running slower,
189 On AMD systems, once an L1 guest has started an L2 guest, the L1 guest
203 - Migrating a nested guest (L2) to another L1 guest on the *same* bare
206 - Migrating a nested guest (L2) to another L1 guest on a *different*
209 - Migrating a nested guest (L2) to a bare metal host.
215 L0, L1 and L2; this can result in tedious back-n-forth between the bug
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/linux/arch/arm/boot/dts/
A Dhighbank.dts25 next-level-cache = <&L2>;
44 next-level-cache = <&L2>;
63 next-level-cache = <&L2>;
82 next-level-cache = <&L2>;
135 L2: cache-controller { label
A Dvexpress-v2p-ca9.dts42 next-level-cache = <&L2>;
49 next-level-cache = <&L2>;
56 next-level-cache = <&L2>;
63 next-level-cache = <&L2>;
164 L2: cache-controller@1e00a000 { label
225 /* PL310, L2 cache, RAM cell supply (not PL310 logic) */
270 /* PL310, L2 cache, RAM cell supply (not PL310 logic) */
284 /* PL310, L2 cache, RAM cell supply (not PL310 logic) */
A Darm-realview-eb-a9mp.dts42 next-level-cache = <&L2>;
49 next-level-cache = <&L2>;
56 next-level-cache = <&L2>;
63 next-level-cache = <&L2>;
A Darm-realview-eb-11mp.dts46 next-level-cache = <&L2>;
53 next-level-cache = <&L2>;
60 next-level-cache = <&L2>;
67 next-level-cache = <&L2>;
A Dvf610.dtsi9 next-level-cache = <&L2>;
13 L2: cache-controller@40006000 { label
/linux/Documentation/devicetree/bindings/cpufreq/
A Dcpufreq-dt.txt33 next-level-cache = <&L2>;
47 next-level-cache = <&L2>;
53 next-level-cache = <&L2>;
59 next-level-cache = <&L2>;
/linux/Documentation/devicetree/bindings/opp/
A Dopp-v2.yaml35 next-level-cache = <&L2>;
46 next-level-cache = <&L2>;
92 next-level-cache = <&L2>;
103 next-level-cache = <&L2>;
114 next-level-cache = <&L2>;
125 next-level-cache = <&L2>;
176 next-level-cache = <&L2>;
187 next-level-cache = <&L2>;
198 next-level-cache = <&L2>;
209 next-level-cache = <&L2>;
/linux/drivers/net/ethernet/intel/iavf/
A Diavf_common.c549 IAVF_PTT(1, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2),
550 IAVF_PTT(2, L2, NONE, NOF, NONE, NONE, NOF, TS, PAY2),
551 IAVF_PTT(3, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2),
554 IAVF_PTT(6, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2),
555 IAVF_PTT(7, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2),
558 IAVF_PTT(10, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2),
559 IAVF_PTT(11, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE),
560 IAVF_PTT(12, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY3),
561 IAVF_PTT(13, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY3),
562 IAVF_PTT(14, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY3),
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/linux/Documentation/devicetree/bindings/arm/calxeda/
A Dl2ecc.yaml7 title: Calxeda Highbank L2 cache ECC
10 Binding for the Calxeda Highbank L2 cache controller ECC device.
11 This does not cover the actual L2 cache controller control registers,
/linux/Documentation/locking/
A Dlockdep-design.rst145 <L1> -> <L2>
146 <L2> -> <L1>
521 L1 -> L2
612 L1 -> L2
613 L2 -> L3
621 the L2 in L2 -> L3, and so on. After this, all of the Lx in Lx -> Lx+1 are
624 And then because we have L1 -> L2, so the holder of L1 is going to acquire L2
625 in L1 -> L2, however since L2 is already held by another CPU/task, plus L1 ->
627 means either L2 in L1 -> L2 is a non-recursive locker (blocked by anyone) or
628 the L2 in L2 -> L3, is writer (blocking anyone), therefore the holder of L1
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/linux/arch/powerpc/perf/
A Disa207-common.c226 ret = PH(LVL, L2); in isa207_find_source()
245 ret |= PH(LVL, L2) | LEVEL(L2) | P(SNOOP, HIT); in isa207_find_source()
247 ret |= PH(LVL, L2) | LEVEL(L2) | P(SNOOP, HITM); in isa207_find_source()
254 ret = PH(LVL, L2) | LEVEL(L2) | REM | P(SNOOP, HIT) | P(HOPS, 0); in isa207_find_source()
256 ret = PH(LVL, L2) | LEVEL(L2) | REM | P(SNOOP, HITM) | P(HOPS, 0); in isa207_find_source()
/linux/Documentation/driver-api/
A Dedac.rst145 - CPU caches (L1 and L2)
155 For example, a cache could be composed of L1, L2 and L3 levels of cache.
156 Each CPU core would have its own L1 cache, while sharing L2 and maybe L3
164 cpu/cpu0/.. <L1 and L2 block directory>
167 /L2-cache/ce_count
169 cpu/cpu1/.. <L1 and L2 block directory>
172 /L2-cache/ce_count
176 the L1 and L2 directories would be "edac_device_block's"
/linux/Documentation/networking/
A Dipvlan.rst14 the master device share the L2 with it's slave devices. I have developed this
45 (b) This command will create IPvlan link in L2 bridge mode::
49 (c) This command will create an IPvlan device in L2 private mode::
53 (d) This command will create an IPvlan device in L2 vepa mode::
61 IPvlan has two modes of operation - L2 and L3. For a given master device,
68 4.1 L2 mode:
81 master device for the L2 processing and routing from that instance will be
133 namespace where L2 on the slave could be changed / misused.
/linux/drivers/soc/sifive/
A DKconfig6 bool "Sifive L2 Cache controller"
8 Support for the L2 cache controller on SiFive platforms.
/linux/arch/powerpc/boot/dts/fsl/
A Dmpc8572ds_camp_core1.dts5 * In CAMP mode, each core needs to have its own dts. Only mpic and L2 cache
58 cache-size = <0x80000>; // L2, 512K
80 18 16 10 42 45 58 /* MEM L2 mdio serial crypto */
/linux/Documentation/devicetree/bindings/memory-controllers/
A Dbaikal,bt1-l2-ctl.yaml8 title: Baikal-T1 L2-cache Control Block
15 tune the MIPS P5600 CM2 L2 cache performance up. In particular it's possible
17 L2-cache controller block is responsible for the tuning. Its DT node is
/linux/arch/alpha/kernel/
A Dsetup.c1280 int L1I, L1D, L2, L3; in determine_cpu_caches() local
1303 L2 = external_cache_probe(128*1024, 5); in determine_cpu_caches()
1317 L2 = (car & 1 ? CSHAPE (size, 3, 1) : -1); in determine_cpu_caches()
1331 L2 = CSHAPE (96*1024, width, 3); in determine_cpu_caches()
1365 L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1); in determine_cpu_caches()
1367 L2 = external_cache_probe(512*1024, 6); in determine_cpu_caches()
1379 L2 = external_cache_probe(1024*1024, 6); in determine_cpu_caches()
1386 L2 = CSHAPE(7*1024*1024/4, 6, 7); in determine_cpu_caches()
1392 L1I = L1D = L2 = L3 = 0; in determine_cpu_caches()
1398 alpha_l2_cacheshape = L2; in determine_cpu_caches()
/linux/Documentation/admin-guide/perf/
A Dqcom_l2_pmu.rst5 This driver supports the L2 cache clusters found in Qualcomm Technologies
6 Centriq SoCs. There are multiple physical L2 cache clusters, each with their
9 There is one logical L2 PMU exposed, which aggregates the results from

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