From: Loic Poulain Date: Mon, 4 Jan 2021 16:14:51 +0000 (+0100) Subject: mhi: pci-generic: Increase number of hardware events X-Git-Tag: v5.15~1648^2~51^2~16 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d9f23ea69d41d9749873381affe3c00bb1857019;p=platform%2Fkernel%2Flinux-starfive.git mhi: pci-generic: Increase number of hardware events If the IPA (IP hardware accelerator) is starved of event ring elements, the modem is crashing (SDX55). That can be prevented by setting a larger number of events (i.e 2 x number of channel ring elements). Tested with FN980m module. Signed-off-by: Loic Poulain Reviewed-by: Manivannan Sadhasivam Signed-off-by: Manivannan Sadhasivam --- diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index f5bee76..d3896ef 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c @@ -91,7 +91,7 @@ struct mhi_pci_dev_info { #define MHI_EVENT_CONFIG_HW_DATA(ev_ring, ch_num) \ { \ - .num_elements = 128, \ + .num_elements = 256, \ .irq_moderation_ms = 5, \ .irq = (ev_ring) + 1, \ .priority = 1, \