David Gibson writes:
> [ Unknown signature status ]
> On Mon, Aug 08, 2016 at 07:33:37AM +1000, Benjamin Herrenschmidt wrote:
>> On Sun, 2016-08-07 at 23:06 +0530, Nikunj A Dadhania wrote:
>> > +target_ulong helper_darn(uint32_t l)
>> > +{
>> > + target_ulong r =
On Mon, Aug 08, 2016 at 07:33:37AM +1000, Benjamin Herrenschmidt wrote:
> On Sun, 2016-08-07 at 23:06 +0530, Nikunj A Dadhania wrote:
> > +target_ulong helper_darn(uint32_t l)
> > +{
> > + target_ulong r = UINT64_MAX;
> > +
> > + if (l <= 2) {
> > + do {
> > + r = random()
Richard Henderson writes:
> On 08/07/2016 11:06 PM, Nikunj A Dadhania wrote:
>> +target_ulong helper_darn(uint32_t l)
>> +{
>> +target_ulong r = UINT64_MAX;
>> +
>> +if (l <= 2) {
>> +do {
>> +r = random() * random();
>> +r &= l ?
On 08/07/2016 11:06 PM, Nikunj A Dadhania wrote:
+target_ulong helper_darn(uint32_t l)
+{
+target_ulong r = UINT64_MAX;
+
+if (l <= 2) {
+do {
+r = random() * random();
+r &= l ? UINT64_MAX : UINT32_MAX;
+} while (r == UINT64_MAX);
+}
+
+
Benjamin Herrenschmidt writes:
> On Mon, 2016-08-08 at 07:22 +0530, Nikunj A Dadhania wrote:
>>
>> > Isn't this a bit week ? Look at the implementation of H_RANDOM...
>>
>> Sure, will have a look.
>
> And if course I meant "weak" :-) That's what happens when I reply
>
On Mon, 2016-08-08 at 07:22 +0530, Nikunj A Dadhania wrote:
>
> > Isn't this a bit week ? Look at the implementation of H_RANDOM...
>
> Sure, will have a look.
And if course I meant "weak" :-) That's what happens when I reply
before breakfast !
Cheers,
Ben.
Benjamin Herrenschmidt writes:
> On Sun, 2016-08-07 at 23:06 +0530, Nikunj A Dadhania wrote:
>> +target_ulong helper_darn(uint32_t l)
>> +{
>> + target_ulong r = UINT64_MAX;
>> +
>> + if (l <= 2) {
>> + do {
>> + r = random() * random();
>> +
On Sun, 2016-08-07 at 23:06 +0530, Nikunj A Dadhania wrote:
> +target_ulong helper_darn(uint32_t l)
> +{
> + target_ulong r = UINT64_MAX;
> +
> + if (l <= 2) {
> + do {
> + r = random() * random();
> + r &= l ? UINT64_MAX : UINT32_MAX;
> + } while (r ==
From: Ravi Bangoria
darn: Deliver A Random Number
For both CRN and RRN, returning 64-bit random number.
Signed-off-by: Ravi Bangoria
Signed-off-by: Nikunj A Dadhania
---
target-ppc/helper.h |