From 2b59e87c92f056dad0ef4b0989a95399b56a625f Mon Sep 17 00:00:00 2001 From: Mikko Perttunen Date: Thu, 19 Jan 2023 15:39:00 +0200 Subject: [PATCH] gpu: host1x: Don't skip assigning syncpoints to channels [ Upstream commit eb258cc1fd458e584082be987dbc6ec42668c05e ] The code to write the syncpoint channel assignment register incorrectly skips the write if hypervisor registers are not available. The register, however, is within the guest aperture so remove the check and assign syncpoints properly even on virtualized systems. Fixes: c3f52220f276 ("gpu: host1x: Enable Tegra186 syncpoint protection") Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin --- drivers/gpu/host1x/hw/syncpt_hw.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpu/host1x/hw/syncpt_hw.c b/drivers/gpu/host1x/hw/syncpt_hw.c index dd39d67ccec3..8cf35b2eff3d 100644 --- a/drivers/gpu/host1x/hw/syncpt_hw.c +++ b/drivers/gpu/host1x/hw/syncpt_hw.c @@ -106,9 +106,6 @@ static void syncpt_assign_to_channel(struct host1x_syncpt *sp, #if HOST1X_HW >= 6 struct host1x *host = sp->host; - if (!host->hv_regs) - return; - host1x_sync_writel(host, HOST1X_SYNC_SYNCPT_CH_APP_CH(ch ? ch->id : 0xff), HOST1X_SYNC_SYNCPT_CH_APP(sp->id));