diff options
| author | Skylar Chang <chiaweic@codeaurora.org> | 2016-04-07 11:04:03 -0700 |
|---|---|---|
| committer | Jeevan Shriram <jshriram@codeaurora.org> | 2016-04-19 19:43:54 -0700 |
| commit | 6ff62f5f5115bf24cde754ffc6fb10b40cc6256d (patch) | |
| tree | c30be60c0b1d3be1b38e636953ee4fac57b0b431 /drivers/platform | |
| parent | fe52a162c9ca0b5943968bb7447285411d11cc9f (diff) | |
msm: ipa3: enable smart prefetch control for GPI
Enable smart prefetch control for GPI (sys) channels.
This is done by configuring the channel scratch in GSI.
CRs-Fixed: 1000819
Change-Id: Iac1687b9b26eed715a1055cca295daa7b46f8abd
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/msm/ipa/ipa_v3/ipa_dp.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/platform/msm/ipa/ipa_v3/ipa_dp.c b/drivers/platform/msm/ipa/ipa_v3/ipa_dp.c index d3f24b9403f0..6bf4008967c6 100644 --- a/drivers/platform/msm/ipa/ipa_v3/ipa_dp.c +++ b/drivers/platform/msm/ipa/ipa_v3/ipa_dp.c @@ -3573,6 +3573,7 @@ static int ipa_gsi_setup_channel(struct ipa3_ep_context *ep) { struct gsi_evt_ring_props gsi_evt_ring_props; struct gsi_chan_props gsi_channel_props; + union __packed gsi_channel_scratch ch_scratch; struct ipa_gsi_ep_config *gsi_ep_info; dma_addr_t dma_addr; int result; @@ -3673,6 +3674,16 @@ static int ipa_gsi_setup_channel(struct ipa3_ep_context *ep) if (result != GSI_STATUS_SUCCESS) goto fail_alloc_channel; + memset(&ch_scratch, 0, sizeof(ch_scratch)); + ch_scratch.gpi.max_outstanding_tre = gsi_ep_info->ipa_if_tlv * + GSI_CHAN_RE_SIZE_16B; + ch_scratch.gpi.outstanding_threshold = 2 * GSI_CHAN_RE_SIZE_16B; + result = gsi_write_channel_scratch(ep->gsi_chan_hdl, ch_scratch); + if (result != GSI_STATUS_SUCCESS) { + IPAERR("failed to write scratch %d\n", result); + goto fail_start_channel; + } + result = gsi_start_channel(ep->gsi_chan_hdl); if (result != GSI_STATUS_SUCCESS) goto fail_start_channel; |