On Mon, May 20, 2019 at 09:55:42AM -0500, Alex Elder wrote:
> On 5/20/19 9:50 AM, Arnd Bergmann wrote:
> > Ok, that sounds reasonable, yes. I'm not sure if
> > dma_alloc_coherent() guarantees zero-initialization
> > though, so if that is required, you may have to
> > add a memset().
> I had
On 5/20/19 9:50 AM, Arnd Bergmann wrote:
> Ok, that sounds reasonable, yes. I'm not sure if
> dma_alloc_coherent() guarantees zero-initialization
> though, so if that is required, you may have to
> add a memset().
I had dma_zalloc_coherent() originally but I think
Christoph Hellwig posted
On Sat, May 18, 2019 at 2:34 AM Alex Elder wrote:
> On 5/15/19 7:35 AM, Alex Elder wrote:
> > On 5/15/19 3:16 AM, Arnd Bergmann wrote:
> >>
> >> This looks rather strange. I think I looked at it before and you explained
> >> it, but I have since forgotten what you do it for, so I assume everyone
On 5/15/19 7:35 AM, Alex Elder wrote:
> On 5/15/19 3:16 AM, Arnd Bergmann wrote:
>> On Sun, May 12, 2019 at 3:25 AM Alex Elder wrote:
>>
>>> +/* Initialize header space in IPA local memory */
>>> +int ipa_cmd_hdr_init_local(struct ipa *ipa, u32 offset, u32 size)
>>> +{
>>> + struct
On 5/15/19 3:16 AM, Arnd Bergmann wrote:
> On Sun, May 12, 2019 at 3:25 AM Alex Elder wrote:
>
>> +/* Initialize header space in IPA local memory */
>> +int ipa_cmd_hdr_init_local(struct ipa *ipa, u32 offset, u32 size)
>> +{
>> + struct ipa_imm_cmd_hw_hdr_init_local *payload;
>> +
On Sun, May 12, 2019 at 3:25 AM Alex Elder wrote:
> +/* Initialize header space in IPA local memory */
> +int ipa_cmd_hdr_init_local(struct ipa *ipa, u32 offset, u32 size)
> +{
> + struct ipa_imm_cmd_hw_hdr_init_local *payload;
> + struct device *dev = >pdev->dev;
> +
One TX endpoint (per EE) is used for issuing immediate commands to
the IPA. These commands request activites beyond simple data
transfers to be done by the IPA hardware. For example, the IPA is
able to manage routing packets among endpoints, and immediate commands
are used to configure tables
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