Re: [RESEND PATCH] usb: mtu3: flush cache for the first GPD when allocate GPD ring

2021-11-12 Thread Chunfeng Yun
Hi Marek, On Thu, 2021-10-21 at 13:33 +0800, Chunfeng Yun wrote: > When allocate the GPD ring, and tell its address to the controller, > then > the driver starts or resumes the QMU, the controller will try to > access > the first GPD, so need flush the first one to avoid wrong GPD status. > > Rep

Re: [RESEND PATCH] usb: mtu3: flush cache for the first GPD when allocate GPD ring

2021-11-12 Thread Chunfeng Yun
Hi Marek, On Thu, 2021-10-21 at 13:33 +0800, Chunfeng Yun wrote: > When allocate the GPD ring, and tell its address to the controller, > then > the driver starts or resumes the QMU, the controller will try to > access > the first GPD, so need flush the first one to avoid wrong GPD status. > > Rep

Re: [RESEND PATCH] usb: mtu3: flush cache for the first GPD when allocate GPD ring

2021-11-12 Thread Chunfeng Yun
Hi Marek, On Thu, 2021-10-21 at 13:33 +0800, Chunfeng Yun wrote: > When allocate the GPD ring, and tell its address to the controller, > then > the driver starts or resumes the QMU, the controller will try to > access > the first GPD, so need flush the first one to avoid wrong GPD status. > > Rep

Re: [RESEND PATCH] usb: mtu3: flush cache for the first GPD when allocate GPD ring

2021-11-12 Thread Chunfeng Yun
Hi Marek, On Thu, 2021-10-21 at 13:33 +0800, Chunfeng Yun wrote: > When allocate the GPD ring, and tell its address to the controller, > then > the driver starts or resumes the QMU, the controller will try to > access > the first GPD, so need flush the first one to avoid wrong GPD status. > > Rep

Re: [RESEND PATCH] usb: mtu3: flush cache for the first GPD when allocate GPD ring

2021-11-03 Thread Marek Vasut
On 11/3/21 3:39 AM, Chunfeng Yun wrote: Hi Marek, On Thu, 2021-10-21 at 13:33 +0800, Chunfeng Yun wrote: When allocate the GPD ring, and tell its address to the controller, then the driver starts or resumes the QMU, the controller will try to access the first GPD, so need flush the first one to

Re: [RESEND PATCH] usb: mtu3: flush cache for the first GPD when allocate GPD ring

2021-11-02 Thread Chunfeng Yun
Hi Marek, On Thu, 2021-10-21 at 13:33 +0800, Chunfeng Yun wrote: > When allocate the GPD ring, and tell its address to the controller, > then > the driver starts or resumes the QMU, the controller will try to > access > the first GPD, so need flush the first one to avoid wrong GPD status. > > Rep

[RESEND PATCH] usb: mtu3: flush cache for the first GPD when allocate GPD ring

2021-10-20 Thread Chunfeng Yun
When allocate the GPD ring, and tell its address to the controller, then the driver starts or resumes the QMU, the controller will try to access the first GPD, so need flush the first one to avoid wrong GPD status. Reported-by: Xin Lin Signed-off-by: Chunfeng Yun --- drivers/usb/mtu3/mtu3_qmu.c