From 16ca2d465d0fd327a71d6fac9605c154ee9d8620 Mon Sep 17 00:00:00 2001 From: Wyatt Wood Date: Thu, 3 Dec 2020 22:04:27 -0500 Subject: [PATCH] drm/amd/display: Allow dmu_stg to support cached inbox for dmub [Why] FW version check doesn't allow dmu_stg to support cached inbox, which yields much better performance than region 4. [How] Check a range of fw versions, rather than a simple greater than check. Tested-by: Daniel Wheeler Signed-off-by: Wyatt Wood Reviewed-by: Nicholas Kazlauskas Acked-by: Anson Jacob Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) 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 cafba1d23c6a..26716c41786a 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn20.c @@ -81,6 +81,13 @@ static inline void dmub_dcn20_translate_addr(const union dmub_addr *addr_in, addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset; } +static inline bool dmub_dcn20_use_cached_inbox(struct dmub_srv *dmub) +{ + /* Cached inbox is not supported in this fw version range */ + return !(dmub->fw_version >= DMUB_FW_VERSION(1, 0, 0) && + dmub->fw_version <= DMUB_FW_VERSION(1, 10, 0)); +} + void dmub_dcn20_reset(struct dmub_srv *dmub) { union dmub_gpint_data_register cmd; @@ -216,7 +223,7 @@ void dmub_dcn20_setup_windows(struct dmub_srv *dmub, dmub_dcn20_translate_addr(&cw4->offset, fb_base, fb_offset, &offset); /* New firmware can support CW4. */ - if (dmub->fw_version > DMUB_FW_VERSION(1, 0, 10)) { + if (dmub_dcn20_use_cached_inbox(dmub)) { REG_WRITE(DMCUB_REGION3_CW4_OFFSET, offset.u.low_part); REG_WRITE(DMCUB_REGION3_CW4_OFFSET_HIGH, offset.u.high_part); REG_WRITE(DMCUB_REGION3_CW4_BASE_ADDRESS, cw4->region.base); @@ -255,7 +262,7 @@ void dmub_dcn20_setup_mailbox(struct dmub_srv *dmub, const struct dmub_region *inbox1) { /* New firmware can support CW4 for the inbox. */ - if (dmub->fw_version > DMUB_FW_VERSION(1, 0, 10)) + if (dmub_dcn20_use_cached_inbox(dmub)) REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, inbox1->base); else REG_WRITE(DMCUB_INBOX1_BASE_ADDRESS, 0x80000000);