diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0746-drm-amd-display-Workaround-for-underflow.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0746-drm-amd-display-Workaround-for-underflow.patch | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0746-drm-amd-display-Workaround-for-underflow.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0746-drm-amd-display-Workaround-for-underflow.patch deleted file mode 100644 index 3a834580..00000000 --- a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0746-drm-amd-display-Workaround-for-underflow.patch +++ /dev/null @@ -1,70 +0,0 @@ -From 56def04019b750cb8701f3dd4e3a73d3bcf271c8 Mon Sep 17 00:00:00 2001 -From: Yongqiang Sun <yongqiang.sun@amd.com> -Date: Fri, 4 Aug 2017 15:42:36 -0400 -Subject: [PATCH 0746/4131] drm/amd/display: Workaround for underflow. - -Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> -Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> -Acked-by: Harry Wentland <Harry.Wentland@amd.com> -Signed-off-by: Alex Deucher <alexander.deucher@amd.com> ---- - .../drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 29 ++++++++++++++++++++++ - 1 file changed, 29 insertions(+) - -diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c -index 2fd9c33..b07ca56 100644 ---- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c -+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c -@@ -1150,6 +1150,22 @@ static bool patch_address_for_sbs_tb_stereo( - return false; - } - -+static void toggle_watermark_change_req(struct dce_hwseq *hws) -+{ -+ uint32_t watermark_change_req; -+ -+ REG_GET(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, -+ DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, &watermark_change_req); -+ -+ if (watermark_change_req) -+ watermark_change_req = 0; -+ else -+ watermark_change_req = 1; -+ -+ REG_UPDATE(DCHUBBUB_ARB_WATERMARK_CHANGE_CNTL, -+ DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST, watermark_change_req); -+} -+ - static void update_plane_addr(const struct core_dc *dc, struct pipe_ctx *pipe_ctx) - { - bool addr_patched = false; -@@ -2089,6 +2105,7 @@ static void update_dchubp_dpp( - mi->funcs->set_blank(mi, !is_pipe_tree_visible(pipe_ctx)); - } - -+ - static void program_all_pipe_in_tree( - struct core_dc *dc, - struct pipe_ctx *pipe_ctx, -@@ -2124,6 +2141,18 @@ static void program_all_pipe_in_tree( - - if (pipe_ctx->plane_state != NULL) { - dcn10_power_on_fe(dc, pipe_ctx, context); -+ -+ /* temporary dcn1 wa: -+ * watermark update requires toggle after a/b/c/d sets are programmed -+ * if hubp is pg then wm value doesn't get properaged to hubp -+ * need to toggle after ungate to ensure wm gets to hubp. -+ * -+ * final solution: we need to get SMU to do the toggle as -+ * DCHUBBUB_ARB_WATERMARK_CHANGE_REQUEST is owned by SMU we should have -+ * both driver and fw accessing same register -+ */ -+ toggle_watermark_change_req(dc->hwseq); -+ - update_dchubp_dpp(dc, pipe_ctx, context); - } - --- -2.7.4 - |