* [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation
@ 2010-03-11 13:16 Vishwanath BS
2010-03-17 18:01 ` Kevin Hilman
2010-03-30 9:29 ` Paul Walmsley
0 siblings, 2 replies; 6+ messages in thread
From: Vishwanath BS @ 2010-03-11 13:16 UTC (permalink / raw)
To: linux-omap; +Cc: Vishwanath BS, Shweta Gulati
From: Shweta Gulati <shweta.gulati@ti.com>
DSP usage at VDD1 OPP1 and OPP2 with Smartreflex enabled and any MM UCs
running DSP codec was earlier restricted as DSP crashed.
The root cause is wrong DPLL1/DPLL2 Bypass clock at VDD1 OPP1 and OPP2.
The solution is to make sure DPLL1/DPLL2 bypass clock is always less than
maximum supported frequency for the specific OPP
Tested on 3630 ZOOM3.
changes in V2 : Rebased to new OPP implementation
Signed-off-by: Shweta Gulati <shweta.gulati@ti.com>
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
---
arch/arm/mach-omap2/cm-regbits-34xx.h | 4 ++--
arch/arm/mach-omap2/pm34xx.c | 23 +++++++++++++++++++++++
arch/arm/mach-omap2/resource34xx.c | 28 +++++++++++++++++++++++++++-
3 files changed, 52 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h
index a3a3ca0..ee420ab 100644
--- a/arch/arm/mach-omap2/cm-regbits-34xx.h
+++ b/arch/arm/mach-omap2/cm-regbits-34xx.h
@@ -81,7 +81,7 @@
/* CM_CLKSEL1_PLL_IVA2 */
#define OMAP3430_IVA2_CLK_SRC_SHIFT 19
-#define OMAP3430_IVA2_CLK_SRC_MASK (0x3 << 19)
+#define OMAP3430_IVA2_CLK_SRC_MASK (0x7 << 19)
#define OMAP3430_IVA2_DPLL_MULT_SHIFT 8
#define OMAP3430_IVA2_DPLL_MULT_MASK (0x7ff << 8)
#define OMAP3430_IVA2_DPLL_DIV_SHIFT 0
@@ -126,7 +126,7 @@
/* CM_CLKSEL1_PLL_MPU */
#define OMAP3430_MPU_CLK_SRC_SHIFT 19
-#define OMAP3430_MPU_CLK_SRC_MASK (0x3 << 19)
+#define OMAP3430_MPU_CLK_SRC_MASK (0x7 << 19)
#define OMAP3430_MPU_DPLL_MULT_SHIFT 8
#define OMAP3430_MPU_DPLL_MULT_MASK (0x7ff << 8)
#define OMAP3430_MPU_DPLL_DIV_SHIFT 0
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index b51b461..494e5e6
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -828,6 +828,29 @@ static void __init omap3_d2d_idle(void)
static void __init prcm_setup_regs(void)
{
+ u32 cm_clksel1_mpu, cm_clksel1_iva2;
+
+ /*set Bypass clock dividers for MPU and IVA */
+ cm_clksel1_mpu = cm_read_mod_reg(MPU_MOD, CM_CLKSEL1);
+ cm_clksel1_iva2 = cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
+ if (cpu_is_omap3630()) {
+ cm_clksel1_iva2 = (cm_clksel1_iva2 &
+ ~(OMAP3430_IVA2_CLK_SRC_MASK)) |
+ (0x2 << OMAP3430_IVA2_CLK_SRC_SHIFT);
+ cm_clksel1_mpu = (cm_clksel1_mpu &
+ ~(OMAP3430_MPU_CLK_SRC_MASK)) |
+ (0x1 << OMAP3430_MPU_CLK_SRC_SHIFT);
+ } else if (cpu_is_omap34xx()) {
+ cm_clksel1_iva2 = (cm_clksel1_iva2 &
+ ~(OMAP3430_IVA2_CLK_SRC_MASK)) |
+ (0x4 << OMAP3430_IVA2_CLK_SRC_SHIFT);
+ cm_clksel1_mpu = (cm_clksel1_mpu &
+ ~(OMAP3430_MPU_CLK_SRC_MASK)) |
+ (0x2 << OMAP3430_MPU_CLK_SRC_SHIFT);
+ }
+ cm_write_mod_reg(cm_clksel1_iva2, OMAP3430_IVA2_MOD, CM_CLKSEL1);
+ cm_write_mod_reg(cm_clksel1_mpu, MPU_MOD, CM_CLKSEL1);
+
/* XXX Reset all wkdeps. This should be done when initializing
* powerdomains */
prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP);
diff --git a/arch/arm/mach-omap2/resource34xx.c b/arch/arm/mach-omap2/resource34xx.c
index c6cce8b..03d7fce
--- a/arch/arm/mach-omap2/resource34xx.c
+++ b/arch/arm/mach-omap2/resource34xx.c
@@ -276,12 +276,13 @@ static unsigned long compute_lpj(unsigned long ref, u_int div, u_int mult)
static int program_opp_freq(int res, int target_level, int current_level)
{
- int ret = 0, l3_div;
+ int ret = 0, l3_div, mpu_div, iva2_div;
int *curr_opp;
unsigned long mpu_freq, dsp_freq, l3_freq;
#ifndef CONFIG_CPU_FREQ
unsigned long mpu_cur_freq;
#endif
+ u32 cm_clksel1_mpu, cm_clksel1_iva2, max_core_clk;
/* Check if I can actually switch or not */
if (res == VDD1_OPP) {
@@ -299,6 +300,31 @@ static int program_opp_freq(int res, int target_level, int current_level)
lock_scratchpad_sem();
if (res == VDD1_OPP) {
+ /* adjust bypass clock diviers */
+ max_core_clk = ULONG_MAX;
+ opp_find_freq_floor(OPP_L3, &max_core_clk);
+ l3_div = cm_read_mod_reg(CORE_MOD, CM_CLKSEL) &
+ OMAP3430_CLKSEL_L3_MASK;
+
+ max_core_clk *= l3_div;
+ mpu_div = 1 << (max_core_clk / mpu_freq);
+ iva2_div = 1 << (max_core_clk / dsp_freq);
+
+ cm_clksel1_mpu = cm_read_mod_reg(MPU_MOD, CM_CLKSEL1);
+ cm_clksel1_iva2 =
+ cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
+
+ cm_clksel1_iva2 = (cm_clksel1_iva2 &
+ ~(OMAP3430_IVA2_CLK_SRC_MASK)) |
+ (iva2_div << OMAP3430_IVA2_CLK_SRC_SHIFT);
+ cm_clksel1_mpu = (cm_clksel1_mpu &
+ ~(OMAP3430_MPU_CLK_SRC_MASK)) |
+ (mpu_div << OMAP3430_MPU_CLK_SRC_SHIFT);
+
+ cm_write_mod_reg(cm_clksel1_iva2,
+ OMAP3430_IVA2_MOD, CM_CLKSEL1);
+ cm_write_mod_reg(cm_clksel1_mpu, MPU_MOD, CM_CLKSEL1);
+
curr_opp = &curr_vdd1_opp;
clk_set_rate(dpll1_clk, mpu_freq);
clk_set_rate(dpll2_clk, dsp_freq);
--
1.5.6.3
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation
2010-03-11 13:16 [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation Vishwanath BS
@ 2010-03-17 18:01 ` Kevin Hilman
2010-03-29 5:09 ` Sripathy, Vishwanath
2010-03-30 9:29 ` Paul Walmsley
1 sibling, 1 reply; 6+ messages in thread
From: Kevin Hilman @ 2010-03-17 18:01 UTC (permalink / raw)
To: Vishwanath BS; +Cc: linux-omap, Shweta Gulati
Vishwanath BS <vishwanath.bs@ti.com> writes:
> From: Shweta Gulati <shweta.gulati@ti.com>
>
> DSP usage at VDD1 OPP1 and OPP2 with Smartreflex enabled and any MM UCs
> running DSP codec was earlier restricted as DSP crashed.
> The root cause is wrong DPLL1/DPLL2 Bypass clock at VDD1 OPP1 and OPP2.
> The solution is to make sure DPLL1/DPLL2 bypass clock is always less than
> maximum supported frequency for the specific OPP
>
> Tested on 3630 ZOOM3.
>
> changes in V2 : Rebased to new OPP implementation
>
> Signed-off-by: Shweta Gulati <shweta.gulati@ti.com>
> Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
> ---
This should be broken up into two parts. One that applies to mainline
(or l-o master), and another that fixes SRF that can be applied to PM
branch. The first will be targted for mainline, but the SRF change
will be only in PM branch, as SRF is deprecated and will be replaced.
That being said, the approach in this patch is not the right approach.
It appears to completely ignore the min/max dividers that are already
managed by the clock/DPLL code.
Please add this support by modifying/extending the existing clock/DPLL
management code instead of manually writing registers.
Kevin
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation
2010-03-17 18:01 ` Kevin Hilman
@ 2010-03-29 5:09 ` Sripathy, Vishwanath
2010-03-30 9:31 ` Paul Walmsley
0 siblings, 1 reply; 6+ messages in thread
From: Sripathy, Vishwanath @ 2010-03-29 5:09 UTC (permalink / raw)
To: Kevin Hilman; +Cc: linux-omap@vger.kernel.org, Gulati, Shweta
Kevin,
> -----Original Message-----
> From: Kevin Hilman [mailto:khilman@deeprootsystems.com]
> Sent: Wednesday, March 17, 2010 11:32 PM
> To: Sripathy, Vishwanath
> Cc: linux-omap@vger.kernel.org; Gulati, Shweta
> Subject: Re: [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under
> DVFS+SR operation
>
> Vishwanath BS <vishwanath.bs@ti.com> writes:
>
> > From: Shweta Gulati <shweta.gulati@ti.com>
> >
> > DSP usage at VDD1 OPP1 and OPP2 with Smartreflex enabled and any MM UCs
> > running DSP codec was earlier restricted as DSP crashed.
> > The root cause is wrong DPLL1/DPLL2 Bypass clock at VDD1 OPP1 and OPP2.
> > The solution is to make sure DPLL1/DPLL2 bypass clock is always less than
> > maximum supported frequency for the specific OPP
> >
> > Tested on 3630 ZOOM3.
> >
> > changes in V2 : Rebased to new OPP implementation
> >
> > Signed-off-by: Shweta Gulati <shweta.gulati@ti.com>
> > Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
> > ---
>
> This should be broken up into two parts. One that applies to mainline
> (or l-o master), and another that fixes SRF that can be applied to PM
> branch. The first will be targted for mainline, but the SRF change
> will be only in PM branch, as SRF is deprecated and will be replaced.
ack
>
> That being said, the approach in this patch is not the right approach.
> It appears to completely ignore the min/max dividers that are already
> managed by the clock/DPLL code.
>
> Please add this support by modifying/extending the existing clock/DPLL
> management code instead of manually writing registers.
>
Min/max dividers in clock framework are for dpll lock frequency, where as in the patch, we configure dpll bypass frequency. Shall I add a new API in dpll.c to configure bypass clock dividers?
Vishwa
> Kevin
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation
2010-03-29 5:09 ` Sripathy, Vishwanath
@ 2010-03-30 9:31 ` Paul Walmsley
2010-03-30 9:45 ` Sripathy, Vishwanath
0 siblings, 1 reply; 6+ messages in thread
From: Paul Walmsley @ 2010-03-30 9:31 UTC (permalink / raw)
To: Sripathy, Vishwanath
Cc: Kevin Hilman, linux-omap@vger.kernel.org, Gulati, Shweta
On Mon, 29 Mar 2010, Sripathy, Vishwanath wrote:
> > -----Original Message-----
> > From: Kevin Hilman [mailto:khilman@deeprootsystems.com]
> >
> > Please add this support by modifying/extending the existing clock/DPLL
> > management code instead of manually writing registers.
> >
> Min/max dividers in clock framework are for dpll lock frequency, where
> as in the patch, we configure dpll bypass frequency. Shall I add a new
> API in dpll.c to configure bypass clock dividers?
That API is called clk_set_rate() and is already present as you can see by
grep'ping clock3xxx_data.c for OMAP3430_MPU_CLK_SRC_MASK (as one example).
- Paul
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation
2010-03-30 9:31 ` Paul Walmsley
@ 2010-03-30 9:45 ` Sripathy, Vishwanath
0 siblings, 0 replies; 6+ messages in thread
From: Sripathy, Vishwanath @ 2010-03-30 9:45 UTC (permalink / raw)
To: Paul Walmsley; +Cc: Kevin Hilman, linux-omap@vger.kernel.org, Gulati, Shweta
> -----Original Message-----
> From: Paul Walmsley [mailto:paul@pwsan.com]
> Sent: Tuesday, March 30, 2010 3:01 PM
> To: Sripathy, Vishwanath
> Cc: Kevin Hilman; linux-omap@vger.kernel.org; Gulati, Shweta
> Subject: RE: [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under
> DVFS+SR operation
>
> On Mon, 29 Mar 2010, Sripathy, Vishwanath wrote:
>
> > > -----Original Message-----
> > > From: Kevin Hilman [mailto:khilman@deeprootsystems.com]
> > >
> > > Please add this support by modifying/extending the existing clock/DPLL
> > > management code instead of manually writing registers.
> > >
> > Min/max dividers in clock framework are for dpll lock frequency, where
> > as in the patch, we configure dpll bypass frequency. Shall I add a new
> > API in dpll.c to configure bypass clock dividers?
>
> That API is called clk_set_rate() and is already present as you can see by
> grep'ping clock3xxx_data.c for OMAP3430_MPU_CLK_SRC_MASK (as one example).
>
Thanks, I will repost the patch.
>
> - Paul
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation
2010-03-11 13:16 [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation Vishwanath BS
2010-03-17 18:01 ` Kevin Hilman
@ 2010-03-30 9:29 ` Paul Walmsley
1 sibling, 0 replies; 6+ messages in thread
From: Paul Walmsley @ 2010-03-30 9:29 UTC (permalink / raw)
To: Vishwanath BS; +Cc: linux-omap, Shweta Gulati
On Thu, 11 Mar 2010, Vishwanath BS wrote:
> From: Shweta Gulati <shweta.gulati@ti.com>
>
> DSP usage at VDD1 OPP1 and OPP2 with Smartreflex enabled and any MM UCs
> running DSP codec was earlier restricted as DSP crashed.
> The root cause is wrong DPLL1/DPLL2 Bypass clock at VDD1 OPP1 and OPP2.
> The solution is to make sure DPLL1/DPLL2 bypass clock is always less than
> maximum supported frequency for the specific OPP
>
> Tested on 3630 ZOOM3.
>
> changes in V2 : Rebased to new OPP implementation
>
> Signed-off-by: Shweta Gulati <shweta.gulati@ti.com>
> Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
> ---
> arch/arm/mach-omap2/cm-regbits-34xx.h | 4 ++--
> arch/arm/mach-omap2/pm34xx.c | 23 +++++++++++++++++++++++
> arch/arm/mach-omap2/resource34xx.c | 28 +++++++++++++++++++++++++++-
> 3 files changed, 52 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/cm-regbits-34xx.h b/arch/arm/mach-omap2/cm-regbits-34xx.h
> index a3a3ca0..ee420ab 100644
> --- a/arch/arm/mach-omap2/cm-regbits-34xx.h
> +++ b/arch/arm/mach-omap2/cm-regbits-34xx.h
> @@ -81,7 +81,7 @@
>
> /* CM_CLKSEL1_PLL_IVA2 */
> #define OMAP3430_IVA2_CLK_SRC_SHIFT 19
> -#define OMAP3430_IVA2_CLK_SRC_MASK (0x3 << 19)
> +#define OMAP3430_IVA2_CLK_SRC_MASK (0x7 << 19)
This is an ES2+ only setting, so please change the original value to
OMAP3430ES1_IVA2_CLK_SRC_MASK and add a new macro here for
OMAP3430ES2_IVA2_CLK_SRC_MASK.
> #define OMAP3430_IVA2_DPLL_MULT_SHIFT 8
> #define OMAP3430_IVA2_DPLL_MULT_MASK (0x7ff << 8)
> #define OMAP3430_IVA2_DPLL_DIV_SHIFT 0
> @@ -126,7 +126,7 @@
>
> /* CM_CLKSEL1_PLL_MPU */
> #define OMAP3430_MPU_CLK_SRC_SHIFT 19
> -#define OMAP3430_MPU_CLK_SRC_MASK (0x3 << 19)
> +#define OMAP3430_MPU_CLK_SRC_MASK (0x7 << 19)
Presumably this is the same.
> #define OMAP3430_MPU_DPLL_MULT_SHIFT 8
> #define OMAP3430_MPU_DPLL_MULT_MASK (0x7ff << 8)
> #define OMAP3430_MPU_DPLL_DIV_SHIFT 0
> diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
> index b51b461..494e5e6
> --- a/arch/arm/mach-omap2/pm34xx.c
> +++ b/arch/arm/mach-omap2/pm34xx.c
> @@ -828,6 +828,29 @@ static void __init omap3_d2d_idle(void)
>
> static void __init prcm_setup_regs(void)
> {
> + u32 cm_clksel1_mpu, cm_clksel1_iva2;
> +
> + /*set Bypass clock dividers for MPU and IVA */
> + cm_clksel1_mpu = cm_read_mod_reg(MPU_MOD, CM_CLKSEL1);
> + cm_clksel1_iva2 = cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
> + if (cpu_is_omap3630()) {
> + cm_clksel1_iva2 = (cm_clksel1_iva2 &
> + ~(OMAP3430_IVA2_CLK_SRC_MASK)) |
> + (0x2 << OMAP3430_IVA2_CLK_SRC_SHIFT);
> + cm_clksel1_mpu = (cm_clksel1_mpu &
> + ~(OMAP3430_MPU_CLK_SRC_MASK)) |
> + (0x1 << OMAP3430_MPU_CLK_SRC_SHIFT);
> + } else if (cpu_is_omap34xx()) {
> + cm_clksel1_iva2 = (cm_clksel1_iva2 &
> + ~(OMAP3430_IVA2_CLK_SRC_MASK)) |
> + (0x4 << OMAP3430_IVA2_CLK_SRC_SHIFT);
> + cm_clksel1_mpu = (cm_clksel1_mpu &
> + ~(OMAP3430_MPU_CLK_SRC_MASK)) |
> + (0x2 << OMAP3430_MPU_CLK_SRC_SHIFT);
> + }
> + cm_write_mod_reg(cm_clksel1_iva2, OMAP3430_IVA2_MOD, CM_CLKSEL1);
This should use the clock framework. You should use clk_set_rate() on
dpll2_fck.
> + cm_write_mod_reg(cm_clksel1_mpu, MPU_MOD, CM_CLKSEL1);
This should use the clock framework. You should use clk_set_rate() on
dpll1_fck.
> +
> /* XXX Reset all wkdeps. This should be done when initializing
> * powerdomains */
> prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP);
> diff --git a/arch/arm/mach-omap2/resource34xx.c b/arch/arm/mach-omap2/resource34xx.c
> index c6cce8b..03d7fce
> --- a/arch/arm/mach-omap2/resource34xx.c
> +++ b/arch/arm/mach-omap2/resource34xx.c
> @@ -276,12 +276,13 @@ static unsigned long compute_lpj(unsigned long ref, u_int div, u_int mult)
>
> static int program_opp_freq(int res, int target_level, int current_level)
> {
> - int ret = 0, l3_div;
> + int ret = 0, l3_div, mpu_div, iva2_div;
> int *curr_opp;
> unsigned long mpu_freq, dsp_freq, l3_freq;
> #ifndef CONFIG_CPU_FREQ
> unsigned long mpu_cur_freq;
> #endif
> + u32 cm_clksel1_mpu, cm_clksel1_iva2, max_core_clk;
>
> /* Check if I can actually switch or not */
> if (res == VDD1_OPP) {
> @@ -299,6 +300,31 @@ static int program_opp_freq(int res, int target_level, int current_level)
>
> lock_scratchpad_sem();
> if (res == VDD1_OPP) {
> + /* adjust bypass clock diviers */
> + max_core_clk = ULONG_MAX;
> + opp_find_freq_floor(OPP_L3, &max_core_clk);
> + l3_div = cm_read_mod_reg(CORE_MOD, CM_CLKSEL) &
> + OMAP3430_CLKSEL_L3_MASK;
> +
> + max_core_clk *= l3_div;
> + mpu_div = 1 << (max_core_clk / mpu_freq);
> + iva2_div = 1 << (max_core_clk / dsp_freq);
> +
> + cm_clksel1_mpu = cm_read_mod_reg(MPU_MOD, CM_CLKSEL1);
> + cm_clksel1_iva2 =
> + cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
> +
> + cm_clksel1_iva2 = (cm_clksel1_iva2 &
> + ~(OMAP3430_IVA2_CLK_SRC_MASK)) |
> + (iva2_div << OMAP3430_IVA2_CLK_SRC_SHIFT);
> + cm_clksel1_mpu = (cm_clksel1_mpu &
> + ~(OMAP3430_MPU_CLK_SRC_MASK)) |
> + (mpu_div << OMAP3430_MPU_CLK_SRC_SHIFT);
> +
> + cm_write_mod_reg(cm_clksel1_iva2,
> + OMAP3430_IVA2_MOD, CM_CLKSEL1);
> + cm_write_mod_reg(cm_clksel1_mpu, MPU_MOD, CM_CLKSEL1);
> +
All this needs to use the clock framework (clk_* functions), unless there
is some good reason why it can't?
> curr_opp = &curr_vdd1_opp;
> clk_set_rate(dpll1_clk, mpu_freq);
> clk_set_rate(dpll2_clk, dsp_freq);
- Paul
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-03-30 9:45 UTC | newest]
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2010-03-11 13:16 [PATCHV2] OMAP3 PM: Fix for DSP Crash at OPP 1 and 2 under DVFS+SR operation Vishwanath BS
2010-03-17 18:01 ` Kevin Hilman
2010-03-29 5:09 ` Sripathy, Vishwanath
2010-03-30 9:31 ` Paul Walmsley
2010-03-30 9:45 ` Sripathy, Vishwanath
2010-03-30 9:29 ` Paul Walmsley
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