On 4/28/20 10:25 AM, Konrad Rzeszutek Wilk wrote:
> On Tue, Apr 28, 2020 at 12:19:41PM +0200, Jürgen Groß wrote:
>> On 28.04.20 10:25, Peng Fan wrote:
>
> Adding Joe Jin.
>
> Joe, didn't you have some ideas on how this could be implemented?
>
>>>> Subje
kon Bugge
> Signed-off-by: Dongli Zhang
Reviewed-by: Joe Jin
Thanks,
Joe
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On 12/10/18 12:00 PM, Tim Chen wrote:
>> @@ -528,6 +538,9 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
>> dev_warn(hwdev, "swiotlb buffer is full (sz: %zd bytes)\n",
>> size);
>> return SWIOTLB_MAP_ERROR;
>> found:
>> +#ifdef CONFIG_DEBUG_FS
>> +io_tlb_used
er usage via debugfs would help the user estimate the size of
> swiotlb buffer to pre-allocate or analyze device driver memory leak issue.
>
> Signed-off-by: Dongli Zhang
Reviewed-by: Joe Jin
> ---
> Changed since v1:
> * init debugfs with late_initcall (suggested by Robi
On 12/9/18 4:37 PM, Dongli Zhang wrote:
> This patch uses io_tlb_used to help check whether swiotlb buffer is full.
> io_tlb_used is no longer used for only debugfs. It is also used to help
> optimize swiotlb_tbl_map_single().
>
> Suggested-by: Joe Jin
> Signed-off-by: Dongl
On 12/6/18 9:49 PM, Dongli Zhang wrote:
>
>
> On 12/07/2018 12:12 AM, Joe Jin wrote:
>> Hi Dongli,
>>
>> Maybe move d_swiotlb_usage declare into swiotlb_create_debugfs():
>
> I assume the call of swiotlb_tbl_map_single() might be frequent in some
> s
Hi Dongli,
Maybe move d_swiotlb_usage declare into swiotlb_create_debugfs():
void swiotlb_create_debugfs(void)
{
#ifdef CONFIG_DEBUG_FS
static struct dentry *d_swiotlb_usage = NULL;
if (d_swiotlb_usage)
return;
d_swiotlb_usage =
