Re: ld.so speedup for large binaries with many shared libraries
On Sat, 23 Apr 2011, Dale Rahn wrote: > Here is a diff that was originally hatched at c2k10 and finally implemented > at k2k11. This has been tested lightly so needs to be tested on all systems > with big and small programs. > > On some machines this can shave 15% off of the startup time of large > applications with lots of dynamically loaded libraries. > > Please test and let me know if there are any problems found. > > Yes I am intentionally cross posting this to ports@ as large ports > are the most affected by this diff. > > Maybe this will finally get ajacoutot@ off my back ;) Heh ;-) Anyway, I've been running with several variations of that diff on some machines (i386 and macppc) for several weeks without seeing any regressions. And I can confirm large beasts do benefit from it. -- Antoine
Re: apply(1) small cleanup
Er saying "pointless" was a little impolite so apologies for that. On Wed, Apr 27, 2011 at 11:32:19PM +0100, Nicholas Marriott wrote: > __dead is in sys/cdefs.h, it is portable for OpenBSD and outside it is > only a #define away. > > Anyway diff seems a little pointless but fine, so ok nicm > > > > On Wed, Apr 27, 2011 at 02:18:52PM +0500, Mark Lumsden wrote: > > On Tue, Apr 26, 2011 at 05:59:45AM -0700, patrick keshishian wrote: > > > On Tue, Apr 26, 2011 at 09:13:08PM +0500, Mark Lumsden wrote: > > > > Make a "Private" function private and other things. ok? > > > > > > > > -mark > > > > > > > > > > > > Index: apply.c > > > > === > > > > RCS file: /cvs/src/usr.bin/apply/apply.c,v > > > > retrieving revision 1.24 > > > > diff -u -p -r1.24 apply.c > > > > --- apply.c 27 Oct 2009 23:59:35 - 1.24 > > > > +++ apply.c 26 Apr 2011 09:40:48 - > > > > @@ -44,8 +44,8 @@ > > > > #include > > > > #include > > > > > > > > -void usage(void); > > > > -intmysystem(const char *); > > > > +static voidusage(void); > > > > > > +__dead void usage(void); > > > > > > > is __dead portable across all compilers/archs? > > > > -mark > > PS I see it sprinkled through the src tree though.
Re: apply(1) small cleanup
__dead is in sys/cdefs.h, it is portable for OpenBSD and outside it is only a #define away. Anyway diff seems a little pointless but fine, so ok nicm On Wed, Apr 27, 2011 at 02:18:52PM +0500, Mark Lumsden wrote: > On Tue, Apr 26, 2011 at 05:59:45AM -0700, patrick keshishian wrote: > > On Tue, Apr 26, 2011 at 09:13:08PM +0500, Mark Lumsden wrote: > > > Make a "Private" function private and other things. ok? > > > > > > -mark > > > > > > > > > Index: apply.c > > > === > > > RCS file: /cvs/src/usr.bin/apply/apply.c,v > > > retrieving revision 1.24 > > > diff -u -p -r1.24 apply.c > > > --- apply.c 27 Oct 2009 23:59:35 - 1.24 > > > +++ apply.c 26 Apr 2011 09:40:48 - > > > @@ -44,8 +44,8 @@ > > > #include > > > #include > > > > > > -void usage(void); > > > -int mysystem(const char *); > > > +static voidusage(void); > > > > +__dead voidusage(void); > > > > is __dead portable across all compilers/archs? > > -mark > PS I see it sprinkled through the src tree though.
Re: alc(4) support for Atheros AR815x
On Tue, Jan 25, 2011 at 06:24:28PM +0800, Kevin Lo wrote: > Hi, > > The following diff adds support for Atheros AR8151/AR8152 chipsets; > mostly from FreeBSD. It also fixes an issue i386/6311. > Tested on Acer AOD255E. Is there an updated diff for this? It seems this never made it into the tree.
Re: attach acpithinkpad on newer lenovo thinkpads
sure
On Wed, Apr 27, 2011 at 03:36:44PM -0500, joshua stein wrote:
> this attaches acpithinkpad to newer lenovo thinkpads like the x120e.
>
> hw.sensors.acpithinkpad0.temp0=57.00 degC
> hw.sensors.acpithinkpad0.temp1=0.00 degC
> hw.sensors.acpithinkpad0.temp2=57.00 degC
> hw.sensors.acpithinkpad0.temp3=0.00 degC
> hw.sensors.acpithinkpad0.temp4=0.00 degC
> hw.sensors.acpithinkpad0.temp5=0.00 degC
> hw.sensors.acpithinkpad0.temp6=27.00 degC
> hw.sensors.acpithinkpad0.temp7=0.00 degC
> hw.sensors.acpithinkpad0.fan0=335 RPM
>
>
> Index: acpi.c
> ===
> RCS file: /cvs/src/sys/dev/acpi/acpi.c,v
> retrieving revision 1.223
> diff -u -p -u -p -r1.223 acpi.c
> --- acpi.c22 Apr 2011 18:22:01 - 1.223
> +++ acpi.c27 Apr 2011 20:32:46 -
> @@ -2328,7 +2328,8 @@ acpi_foundhid(struct aml_node *node, voi
> aaa.aaa_name = "acpibtn";
> else if (!strcmp(dev, ACPI_DEV_ASUS))
> aaa.aaa_name = "acpiasus";
> - else if (!strcmp(dev, ACPI_DEV_THINKPAD)) {
> + else if (!strcmp(dev, ACPI_DEV_IBM) ||
> + !strcmp(dev, ACPI_DEV_LENOVO)) {
> aaa.aaa_name = "acpithinkpad";
> acpi_thinkpad_enabled = 1;
> } else if (!strcmp(dev, ACPI_DEV_ASUSAIBOOSTER))
> Index: acpireg.h
> ===
> RCS file: /cvs/src/sys/dev/acpi/acpireg.h,v
> retrieving revision 1.24
> diff -u -p -u -p -r1.24 acpireg.h
> --- acpireg.h 4 Jan 2011 21:17:49 - 1.24
> +++ acpireg.h 27 Apr 2011 20:32:47 -
> @@ -713,7 +713,8 @@ struct acpi_ivrs {
> #define ACPI_DEV_THZ "THERMALZONE" /* Thermal Zone */
> #define ACPI_DEV_FFB "FIXEDBUTTON" /* Fixed Feature Button */
> #define ACPI_DEV_ASUS"ASUS010" /* ASUS Hotkeys */
> -#define ACPI_DEV_THINKPAD "IBM0068" /* ThinkPad support */
> +#define ACPI_DEV_IBM "IBM0068" /* IBM ThinkPad support */
> +#define ACPI_DEV_LENOVO "LEN0068" /* Lenovo ThinkPad support */
> #define ACPI_DEV_ASUSAIBOOSTER "ATK0110" /* ASUSTeK AI Booster */
>
> #endif /* !_DEV_ACPI_ACPIREG_H_ */
> Index: acpithinkpad.c
> ===
> RCS file: /cvs/src/sys/dev/acpi/acpithinkpad.c,v
> retrieving revision 1.25
> diff -u -p -u -p -r1.25 acpithinkpad.c
> --- acpithinkpad.c2 Jan 2011 04:56:57 - 1.25
> +++ acpithinkpad.c27 Apr 2011 20:32:47 -
> @@ -114,7 +114,9 @@ struct cfdriver acpithinkpad_cd = {
> NULL, "acpithinkpad", DV_DULL
> };
>
> -const char *acpithinkpad_hids[] = { ACPI_DEV_THINKPAD, 0 };
> +const char *acpithinkpad_hids[] = {
> + ACPI_DEV_IBM, ACPI_DEV_LENOVO, 0
> +};
>
> int
> thinkpad_match(struct device *parent, void *match, void *aux)
>
>
>
> OpenBSD 4.9-current (GENERIC.MP) #6: Thu Dec 31 18:16:11 CST 2009
> j...@re.superblock.net:/usr/src/sys/arch/amd64/compile/GENERIC.MP
> RTC BIOS diagnostic error 80
> real mem = 3867213824 (3688MB)
> avail mem = 3750223872 (3576MB)
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xf9ba0 (60 entries)
> bios0: vendor LENOVO version "8FET27WW (1.11 )" date 03/24/2011
> bios0: LENOVO 05962RU
> acpi0 at bios0: rev 2
> acpi0: sleep states S0 S3 S4 S5
> acpi0: tables DSDT FACP SLIC HPET APIC MCFG UEFI UEFI SSDT SSDT UEFI
> acpi0: wakeup devices PB4_(S4) PB5_(S4) PB6_(S4) PB7_(S4) OHC1(S3) EHC1(S3)
> OHC2(S3) EHC2(S3) OHC3(S3) EHC3(S3) OHC4(S3) SBAZ(S4) GEC_(S4) P2P_(S5)
> SPB0(S4) SPB1(S4) SPB2(S4) SPB3(S4) LID_(S4)
> acpitimer0 at acpi0: 3579545 Hz, 32 bits
> acpihpet0 at acpi0: 14318180 Hz
> acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
> cpu0 at mainbus0: apid 0 (boot processor)
> cpu0: AMD E-350 Processor, 1597.52 MHz
> cpu0:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,LONG
> cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 512KB
> 64b/line 16-way L2 cache
> cpu0: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
> cpu0: apic clock running at 199MHz
> cpu1 at mainbus0: apid 1 (application processor)
> cpu1: AMD E-350 Processor, 1596.60 MHz
> cpu1:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,LONG
> cpu1: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 512KB
> 64b/line 16-way L2 cache
> cpu1: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
> ioapic0 at mainbus0: apid 2 pa 0xfec0, version 21, 24 pins
> ioapic0: misconfigured as apic 0, remapped to apid 2
> acpimcfg0 at acpi0 addr 0xf800, bus 0-31
> acpiprt0 at acpi0: bus 0 (PCI0)
> acpiprt1 at acpi0: bus -1 (PB4_)
> acpiprt2 at acpi0: bus -1 (PB5_)
> acpiprt3 at acpi0: bus 1 (PB6_)
> acpiprt4 at acpi0: bus -1 (PB7_)
> acpiprt5 at acpi0: bus 2 (P2P_)
> acpiprt6 at acpi0: bus 3
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attach acpithinkpad on newer lenovo thinkpads
this attaches acpithinkpad to newer lenovo thinkpads like the x120e.
hw.sensors.acpithinkpad0.temp0=57.00 degC
hw.sensors.acpithinkpad0.temp1=0.00 degC
hw.sensors.acpithinkpad0.temp2=57.00 degC
hw.sensors.acpithinkpad0.temp3=0.00 degC
hw.sensors.acpithinkpad0.temp4=0.00 degC
hw.sensors.acpithinkpad0.temp5=0.00 degC
hw.sensors.acpithinkpad0.temp6=27.00 degC
hw.sensors.acpithinkpad0.temp7=0.00 degC
hw.sensors.acpithinkpad0.fan0=335 RPM
Index: acpi.c
===
RCS file: /cvs/src/sys/dev/acpi/acpi.c,v
retrieving revision 1.223
diff -u -p -u -p -r1.223 acpi.c
--- acpi.c 22 Apr 2011 18:22:01 - 1.223
+++ acpi.c 27 Apr 2011 20:32:46 -
@@ -2328,7 +2328,8 @@ acpi_foundhid(struct aml_node *node, voi
aaa.aaa_name = "acpibtn";
else if (!strcmp(dev, ACPI_DEV_ASUS))
aaa.aaa_name = "acpiasus";
- else if (!strcmp(dev, ACPI_DEV_THINKPAD)) {
+ else if (!strcmp(dev, ACPI_DEV_IBM) ||
+ !strcmp(dev, ACPI_DEV_LENOVO)) {
aaa.aaa_name = "acpithinkpad";
acpi_thinkpad_enabled = 1;
} else if (!strcmp(dev, ACPI_DEV_ASUSAIBOOSTER))
Index: acpireg.h
===
RCS file: /cvs/src/sys/dev/acpi/acpireg.h,v
retrieving revision 1.24
diff -u -p -u -p -r1.24 acpireg.h
--- acpireg.h 4 Jan 2011 21:17:49 - 1.24
+++ acpireg.h 27 Apr 2011 20:32:47 -
@@ -713,7 +713,8 @@ struct acpi_ivrs {
#define ACPI_DEV_THZ "THERMALZONE" /* Thermal Zone */
#define ACPI_DEV_FFB "FIXEDBUTTON" /* Fixed Feature Button */
#define ACPI_DEV_ASUS "ASUS010" /* ASUS Hotkeys */
-#define ACPI_DEV_THINKPAD "IBM0068"/* ThinkPad support */
+#define ACPI_DEV_IBM "IBM0068" /* IBM ThinkPad support */
+#define ACPI_DEV_LENOVO"LEN0068" /* Lenovo ThinkPad support */
#define ACPI_DEV_ASUSAIBOOSTER "ATK0110" /* ASUSTeK AI Booster */
#endif /* !_DEV_ACPI_ACPIREG_H_ */
Index: acpithinkpad.c
===
RCS file: /cvs/src/sys/dev/acpi/acpithinkpad.c,v
retrieving revision 1.25
diff -u -p -u -p -r1.25 acpithinkpad.c
--- acpithinkpad.c 2 Jan 2011 04:56:57 - 1.25
+++ acpithinkpad.c 27 Apr 2011 20:32:47 -
@@ -114,7 +114,9 @@ struct cfdriver acpithinkpad_cd = {
NULL, "acpithinkpad", DV_DULL
};
-const char *acpithinkpad_hids[] = { ACPI_DEV_THINKPAD, 0 };
+const char *acpithinkpad_hids[] = {
+ ACPI_DEV_IBM, ACPI_DEV_LENOVO, 0
+};
int
thinkpad_match(struct device *parent, void *match, void *aux)
OpenBSD 4.9-current (GENERIC.MP) #6: Thu Dec 31 18:16:11 CST 2009
j...@re.superblock.net:/usr/src/sys/arch/amd64/compile/GENERIC.MP
RTC BIOS diagnostic error 80
real mem = 3867213824 (3688MB)
avail mem = 3750223872 (3576MB)
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xf9ba0 (60 entries)
bios0: vendor LENOVO version "8FET27WW (1.11 )" date 03/24/2011
bios0: LENOVO 05962RU
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SLIC HPET APIC MCFG UEFI UEFI SSDT SSDT UEFI
acpi0: wakeup devices PB4_(S4) PB5_(S4) PB6_(S4) PB7_(S4) OHC1(S3) EHC1(S3)
OHC2(S3) EHC2(S3) OHC3(S3) EHC3(S3) OHC4(S3) SBAZ(S4) GEC_(S4) P2P_(S5)
SPB0(S4) SPB1(S4) SPB2(S4) SPB3(S4) LID_(S4)
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpihpet0 at acpi0: 14318180 Hz
acpimadt0 at acpi0 addr 0xfee0: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD E-350 Processor, 1597.52 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,LONG
cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 512KB 64b/line
16-way L2 cache
cpu0: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
cpu0: apic clock running at 199MHz
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD E-350 Processor, 1596.60 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,LONG
cpu1: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 512KB 64b/line
16-way L2 cache
cpu1: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
ioapic0 at mainbus0: apid 2 pa 0xfec0, version 21, 24 pins
ioapic0: misconfigured as apic 0, remapped to apid 2
acpimcfg0 at acpi0 addr 0xf800, bus 0-31
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PB4_)
acpiprt2 at acpi0: bus -1 (PB5_)
acpiprt3 at acpi0: bus 1 (PB6_)
acpiprt4 at acpi0: bus -1 (PB7_)
acpiprt5 at acpi0: bus 2 (P2P_)
acpiprt6 at acpi0: bus 3 (SPB0)
acpiprt7 at acpi0: bus 4 (SPB1)
acpiprt8 at acpi0: bus -1 (SPB2)
acpiprt9 at acpi0: bus -1 (SPB3)
acpiec0 at acpi0
acpicpu0 at acpi0: C2, PSS
acpicpu1 at acpi0: C2, PSS
acpitz0 at acpi0: critical temperature 92 degC
acpibtn0 at acpi0: PWRB
acpibtn1 at acpi
Novedades de politica y gestión #5
Guillermo Justo Chaves en la Feria del Libro El próximo JUEVES 28 DE ABRIL DE 18 A 19 HS. , el Director del INCAP, Guillermo Justo Chaves, va a dar una charla en el marco de la Feria del Libro. El tema que se abordará es :”El legado del Presidente Kirchner a la Argentina y a las nuevas generaciones”. Ver Mas EL PERONISMO. NECESIDAD DE DEBATE Y ACTUALIZACION. Una visión generacional Las polémicas y los debates acerca de la identidad del peronismo han sido un clásico desde la aparición misma del movimiento nacional. La astucia del “Viejo” en su última etapa o del “General” en su momento de esplendor; su habilidad allá por mediados del siglo pasado, para sintetizar las diferentes corrientes ideológicas que confluían en el culto a la personalidad del tremendo líder, hicieron que todo esté dentro de ese gran proyecto nacional y popular. Ese momento original arrancó con una lógica de la praxis, es decir, primero el acceso del Coronel Perón al poder, luego de constituirse como el abanderado de un nuevo actor, que pasaría a ser el “sujeto histórico”:el trabajador. A través de la incorporaciónal sistema político de una cantidad de argentinos que miraban -parafraseando a Discepolín- con “la ñata contra el vidrio” el país de las vaquitas y el trigo, se fue construyendo otra realidad, otra “verdad”. Las grandes conquistaspolíticas, sociales, económicas y -porque no- culturales, una vez que pasaron a formar partedel acervo de los nuevos sujetos, se comenzaron a plasmaren un cuerpo de doctrina. VerMas www.guillermochaves.com.ar conta...@guillermochaves.com.ar
Sitios web a bajos costos
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Re: spurious sys/types.h include in man pages
Ok thanks. On Wed, Apr 27, 2011 at 12:20 AM, Theo de Raadt wrote: >> Maybe I am missing something but the following manpages don't really need >> sys/types.h. > > you are wrong. > > You are only trying on OpenBSD. > > If only everything was OpenBSD. > > However, everything is not OpenBSD.
[Private Photo Share] Cali Girl- Has sent you private photos.
I do not want the entire group seeing these photos.Because some may recognize me. Here's the link: http://losley.zoomshare.com/files/friend.htm
Joan Manuel Serrat - Discografía mas Pendrive de Regalo - (38 Álbumes)
Como Ho Fa El Vent o S Una Guitarra O q Canço de matinada oAra Que Tinc Vint Anys EP i Cançons Tradicionals o S La, La, Lao o s Manuel. Single o Per Sant Joan. Single o Antonio Machado S Mare Lola o o Penelope. Single o Como Un Gorrion. Single o o Mi Niñez o o Serrat 4 n Lucia. Single o Mediterraneo S Miguel Hernandez Per Al Meu Amic e Cancion Infantil Edurne. Single Para Piel De Manzana ResNo Es Mesquí o 1978 o Talcom raja En TransitooCada Loco Con Su Tema Ara Que Tinc Vint Anys El Sur Tambien Existe o Sinceramente Teu o o Bienaventurados o Material Sensible o Nadie Es Perfecto The o Banda Sonora D'un Temps D'un Paìs Serrat y Sabina Dos Pajaros De Un Tiro Sombras De China oVersos En La Boca o Sinfonico o Mô o
Re: macppc: support for Dynamic Frequency Switching
On 27/04/11(Wed) 12:41, Martin Pieuchot wrote: > On 26/04/11(Tue) 18:29, Martin Pieuchot wrote: > > The following diff adds support for dfs. It requires my precedent patch > > about GPIOs. I don't have a machine with a MPC7448 so it's only tested > > with a MPC7447A. > > > > I'm also interested in various device-tree dumps for further development. > > If you can send me yours, contact me off list. > > Updated diff, correct the voltage offset in case the value of the reg > property is relative to the gpio controller offset. As pointed by landry@ I didn't explain what's dfs. Dynamic Frequency Switching, aka dfs, is a feature available (at least) in the MPC7447A and MPC7448 processors that adds the ability to divide the processor bus ratio. Concretely it allows you to reduce the speed and power consumption on some Apple G4 machine. For example, the difference here on an ibook G4: -hw.sensors.adt0.volt1=1.54 VDC (Vccp) +hw.sensors.adt0.volt1=1.29 VDC (Vccp) hw.sensors.adt0.volt2=3.28 VDC (Vcc) hw.sensors.adt0.volt3=0.00 VDC (+5V) hw.sensors.adt0.volt4=0.00 VDC (+12V) -hw.cpuspeed=1333 -hw.setperf=100 +hw.cpuspeed=666 +hw.setperf=0 You can check if your machine supports it by looking for the cpu-vcore-select node in your openfirmware dump: $ eeprom -p |grep vcore Regards, Martin
Re: malloc: speed vs randomization
On Tue, Apr 26, 2011 at 09:13:47PM +0200, Otto Moerbeek wrote:
> On Tue, Apr 26, 2011 at 10:09:23AM -0400, Ted Unangst wrote:
>
> > On Tue, Apr 26, 2011 at 9:33 AM, Otto Moerbeek wrote:
> > > This diff implements a tradeoff to gain speed at the cost of reducing
> > > the randomness of chunk allocation in malloc slightly.
> > >
> > > The idea is only to randomize the first half of chunks in a page. The
> > > second half of chunks will fill in the gaps in-order. The
> > > effectiveness of the current randomization decreases already with the
> > > number of free slots diminishing in a page.
> > >
> > > In one test case, this diff reduced the runtime from 31s to 25s. I'm
> > > not completely sure if the reduced randomness is acceptable. But if
> >
> > Perhaps a quarter? We want to prevent adjacent consecutive
> > allocations, which is still very likely at the half way point, but
> > diminishes after that.
>
> Yes, that might be better, though you some of the performance gain is
> lost because you are scanning a lot of bits: i free bits + all bits in
> between that are not free. If a chunk page is pretty full, that's a
> lot of bits before you find the i'th free chunk.
>
> Originally I though most of the time was lost getting the random bits,
> but now it seems the scanning of the bits is to blame. Unless I'm
> misinterpreting my data
>
> -Otto
Second version of diff. This is a conservative one, i.e. it does not
change randomization in any way. The diff achieves a speedup by:
- Move from long units to short, making the test for a complete non-free
unit more effective.
- In the randomization loop, also consider whole units instead of always
doing it bit by bit.
-Otto
Index: malloc.c
===
RCS file: /cvs/src/lib/libc/stdlib/malloc.c,v
retrieving revision 1.127
diff -u -p -r1.127 malloc.c
--- malloc.c16 Dec 2010 18:47:01 - 1.127
+++ malloc.c27 Apr 2011 07:43:43 -
@@ -138,7 +138,7 @@ struct dir_info {
*
* How many bits per u_long in the bitmap
*/
-#define MALLOC_BITS(NBBY * sizeof(u_long))
+#define MALLOC_BITS(NBBY * sizeof(u_short))
struct chunk_info {
LIST_ENTRY(chunk_info) entries;
void *page; /* pointer to the page */
@@ -148,7 +148,7 @@ struct chunk_info {
u_short free; /* how many free chunks */
u_short total; /* how many chunk */
/* which chunks are free */
- u_long bits[(MALLOC_PAGESIZE / MALLOC_MINSIZE) / MALLOC_BITS];
+ u_short bits[(MALLOC_PAGESIZE / MALLOC_MINSIZE) / MALLOC_BITS];
};
struct malloc_readonly {
@@ -958,10 +958,10 @@ omalloc_make_chunks(struct dir_info *d,
/* Do a bunch at a time */
for (; (k - i) >= MALLOC_BITS; i += MALLOC_BITS)
- bp->bits[i / MALLOC_BITS] = ~0UL;
+ bp->bits[i / MALLOC_BITS] = (u_short)~0U;
for (; i < k; i++)
- bp->bits[i / MALLOC_BITS] |= 1UL << (i % MALLOC_BITS);
+ bp->bits[i / MALLOC_BITS] |= (u_short)1U << (i % MALLOC_BITS);
LIST_INSERT_HEAD(&d->chunk_dir[bits], bp, entries);
@@ -982,7 +982,7 @@ malloc_bytes(struct dir_info *d, size_t
{
int i, j;
size_t k;
- u_long u, *lp;
+ u_short u, *lp;
struct chunk_info *bp;
if (mopts.malloc_canary != (d->canary1 ^ (u_int32_t)(uintptr_t)d) ||
@@ -1026,22 +1026,26 @@ malloc_bytes(struct dir_info *d, size_t
}
/* advance a random # of positions */
- i = getrnibble() % bp->free;
- while (i > 0) {
- u += u;
- k++;
- if (k >= MALLOC_BITS) {
- lp++;
- u = 1;
- k = 0;
- }
- if (lp - bp->bits > (bp->total - 1) / MALLOC_BITS) {
- wrterror("chunk overflow", NULL);
- errno = EFAULT;
- return (NULL);
+ if (bp->free > 1) {
+ i = getrnibble() % bp->free;
+ while (i > 0) {
+ u += u;
+ k++;
+ if (k >= MALLOC_BITS) {
+ while (!*++lp)
+ /* EMPTY */;
+ u = 1;
+ k = 0;
+ if (lp - bp->bits > (bp->total - 1) /
+ MALLOC_BITS) {
+ wrterror("chunk overflow", NULL);
+ errno = EFAULT;
+ return (NULL);
+ }
+ }
+ if (*lp & u)
+ i--;
}
-
Re: macppc: support for Dynamic Frequency Switching
On 26/04/11(Tue) 18:29, Martin Pieuchot wrote:
> The following diff adds support for dfs. It requires my precedent patch
> about GPIOs. I don't have a machine with a MPC7448 so it's only tested
> with a MPC7447A.
>
> I'm also interested in various device-tree dumps for further development.
> If you can send me yours, contact me off list.
Updated diff, correct the voltage offset in case the value of the reg
property is relative to the gpio controller offset.
Index: dev/dfs.c
===
RCS file: dev/dfs.c
diff -N dev/dfs.c
--- /dev/null 1 Jan 1970 00:00:00 -
+++ dev/dfs.c 27 Apr 2011 07:06:17 -
@@ -0,0 +1,160 @@
+/* $OpenBSD$ */
+/*
+ * Copyright (c) 2011 Martin Pieuchot
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include
+#include
+#include
+
+#include
+
+#include
+#include
+#include
+
+#defineDFS2(1 << 22) /* Divide-by-Two */
+#defineDFS4(1 << 23) /* Divide-by-Four (MPC7448 Specific) */
+
+extern int perflevel;
+static int voltage;
+
+intdfs_match(struct device *, void *, void *);
+void dfs_attach(struct device *, struct device *, void *);
+void dfs_setperf(int);
+void dfs_scale_frequency(u_int);
+
+struct cfattach dfs_ca = {
+ sizeof(struct device), dfs_match, dfs_attach
+};
+
+struct cfdriver dfs_cd = {
+ NULL, "dfs", DV_DULL
+};
+
+int
+dfs_match(struct device *parent, void *arg, void *aux)
+{
+ struct confargs *ca = aux;
+ uint16_t cpu;
+
+ if (strcmp(ca->ca_name, "cpu-vcore-select") != 0)
+ return (0);
+
+ cpu = ppc_mfpvr() >> 16;
+ if (cpu == PPC_CPU_MPC7447A || cpu == PPC_CPU_MPC7448)
+ return (1);
+
+ return (0);
+}
+
+void
+dfs_attach(struct device *parent, struct device *self, void *aux)
+{
+ struct confargs *ca = aux;
+ uint32_t hid1, reg;
+ uint16_t cpu;
+
+ /*
+* On some models the vcore-select offset is relative to
+* its parent offset and not to the bus base address.
+*/
+ OF_getprop(OF_parent(ca->ca_node), "reg", ®, sizeof(reg));
+ if (reg > ca->ca_reg[0])
+ voltage = reg + ca->ca_reg[0];
+ else
+ voltage = ca->ca_reg[0];
+
+ hid1 = ppc_mfhid1();
+
+ if (hid1 & DFS4) {
+ ppc_curfreq = ppc_maxfreq / 4;
+ perflevel = 25;
+ } else if (hid1 & DFS2) {
+ ppc_curfreq = ppc_maxfreq / 2;
+ perflevel = 50;
+ }
+
+ cpu_setperf = dfs_setperf;
+
+ printf(": Dynamic Frequency Switching, speeds: ");
+ printf("%d, %d", ppc_maxfreq, ppc_maxfreq / 2);
+
+ cpu = ppc_mfpvr() >> 16;
+ if (cpu == PPC_CPU_MPC7448)
+ printf(", %d MHz\n", ppc_maxfreq / 4);
+ else
+ printf(" MHz\n");
+}
+
+void
+dfs_setperf(int perflevel)
+{
+ if (perflevel > 50) {
+ if (ppc_curfreq != ppc_maxfreq) {
+ macobio_write(voltage, GPIO_DDR_OUTPUT | 1);
+ DELAY(1000);
+ dfs_scale_frequency(FREQ_FULL);
+ }
+ } else {
+ uint16_t cpu;
+
+ cpu = ppc_mfpvr() >> 16;
+ if (cpu == PPC_CPU_MPC7448 && perflevel <= 25) {
+ if (ppc_curfreq != ppc_maxfreq / 4) {
+ dfs_scale_frequency(FREQ_QUARTER);
+ macobio_write(voltage, GPIO_DDR_OUTPUT | 0);
+ DELAY(1000);
+ }
+ } else {
+ if (ppc_curfreq != ppc_maxfreq / 2) {
+ dfs_scale_frequency(FREQ_HALF);
+ macobio_write(voltage, GPIO_DDR_OUTPUT | 0);
+ DELAY(1000);
+ }
+ }
+ }
+}
+
+void
+dfs_scale_frequency(u_int freq_scale)
+{
+ uint32_t hid1;
+ int s;
+
+ s = splhigh();
+ hid1 = ppc_mfhid1();
+
+ hid1 &= ~(DFS2 | DFS4);
+ switch (freq_scale) {
+ case FREQ_QUARTER:
+ hid1 |= DFS4;
+ ppc_curfreq = ppc_maxfreq / 4;
+ break;
+ case FREQ
