From: Nicholas Kazlauskas Date: Mon, 13 Jan 2020 13:58:00 +0000 (-0500) Subject: drm/amd/display: Reset inbox rptr/wptr when resetting DMCUB X-Git-Tag: v5.6-rc1~34^2^2~49 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a7da96fbccc682a67bcc15f3461cdd60a622ffaf;p=thirdparty%2Fkernel%2Flinux.git drm/amd/display: Reset inbox rptr/wptr when resetting DMCUB [Why] These logically make sense more to be set after the DMCUB has been reset rather than when we setup the inbox. [How] Move them into the reset callback. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Tony Cheng Acked-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c index 9229012b93e23..b2ca8e0dbac92 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c @@ -80,6 +80,8 @@ void dmub_dcn20_reset(struct dmub_srv *dmub) REG_UPDATE(DMCUB_CNTL, DMCUB_SOFT_RESET, 1); REG_UPDATE(DMCUB_CNTL, DMCUB_ENABLE, 0); REG_UPDATE(MMHUBBUB_SOFT_RESET, DMUIF_SOFT_RESET, 1); + REG_WRITE(DMCUB_INBOX1_RPTR, 0); + REG_WRITE(DMCUB_INBOX1_WPTR, 0); } void dmub_dcn20_reset_release(struct dmub_srv *dmub) @@ -190,8 +192,6 @@ void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub, REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, 0x80000000); REG_WRITE(DMCUB_INBOX1_SIZE, inbox1->top - inbox1->base); - REG_WRITE(DMCUB_INBOX1_RPTR, 0); - REG_WRITE(DMCUB_INBOX1_WPTR, 0); } uint32_t dmub_dcn20_get_inbox1_rptr(struct dmub_srv *dmub)