]> git.itanic.dy.fi Git - linux-stable/commitdiff
drm/amd/display: Use cursor locking to prevent flip delays
authorAric Cyr <aric.cyr@amd.com>
Wed, 22 Apr 2020 22:08:03 +0000 (18:08 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 28 Apr 2020 20:45:14 +0000 (16:45 -0400)
[Why]
Current locking scheme for cursor can result in a flip missing
its vsync, deferring it for one or more vsyncs.  Result is a
potential for stuttering when cursor is moved.

[How]
Use cursor update lock so that flips are not blocked while cursor
is being programmed.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
16 files changed:
drivers/gpu/drm/amd/display/dc/core/dc_stream.c
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.h
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_init.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.c
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_mpc.h
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.h
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h

index 8c20e9e907b2ff978805f11b4a6be280d453216c..4f0e7203dba4f41fd6fa4419b11f99aefc7d97c1 100644 (file)
@@ -231,34 +231,6 @@ struct dc_stream_status *dc_stream_get_status(
        return dc_stream_get_status_from_state(dc->current_state, stream);
 }
 
-static void delay_cursor_until_vupdate(struct pipe_ctx *pipe_ctx, struct dc *dc)
-{
-#if defined(CONFIG_DRM_AMD_DC_DCN)
-       unsigned int vupdate_line;
-       unsigned int lines_to_vupdate, us_to_vupdate, vpos, nvpos;
-       struct dc_stream_state *stream = pipe_ctx->stream;
-       unsigned int us_per_line;
-
-       if (!dc->hwss.get_vupdate_offset_from_vsync)
-               return;
-
-       vupdate_line = dc->hwss.get_vupdate_offset_from_vsync(pipe_ctx);
-       if (!dc_stream_get_crtc_position(dc, &stream, 1, &vpos, &nvpos))
-               return;
-
-       if (vpos >= vupdate_line)
-               return;
-
-       us_per_line =
-               stream->timing.h_total * 10000 / stream->timing.pix_clk_100hz;
-       lines_to_vupdate = vupdate_line - vpos;
-       us_to_vupdate = lines_to_vupdate * us_per_line;
-
-       /* 70 us is a conservative estimate of cursor update time*/
-       if (us_to_vupdate < 70)
-               udelay(us_to_vupdate);
-#endif
-}
 
 /**
  * dc_stream_set_cursor_attributes() - Update cursor attributes and set cursor surface address
@@ -298,9 +270,7 @@ bool dc_stream_set_cursor_attributes(
 
                if (!pipe_to_program) {
                        pipe_to_program = pipe_ctx;
-
-                       delay_cursor_until_vupdate(pipe_ctx, dc);
-                       dc->hwss.pipe_control_lock(dc, pipe_to_program, true);
+                       dc->hwss.cursor_lock(dc, pipe_to_program, true);
                }
 
                dc->hwss.set_cursor_attribute(pipe_ctx);
@@ -309,7 +279,7 @@ bool dc_stream_set_cursor_attributes(
        }
 
        if (pipe_to_program)
-               dc->hwss.pipe_control_lock(dc, pipe_to_program, false);
+               dc->hwss.cursor_lock(dc, pipe_to_program, false);
 
        return true;
 }
@@ -349,16 +319,14 @@ bool dc_stream_set_cursor_position(
 
                if (!pipe_to_program) {
                        pipe_to_program = pipe_ctx;
-
-                       delay_cursor_until_vupdate(pipe_ctx, dc);
-                       dc->hwss.pipe_control_lock(dc, pipe_to_program, true);
+                       dc->hwss.cursor_lock(dc, pipe_to_program, true);
                }
 
                dc->hwss.set_cursor_position(pipe_ctx);
        }
 
        if (pipe_to_program)
-               dc->hwss.pipe_control_lock(dc, pipe_to_program, false);
+               dc->hwss.cursor_lock(dc, pipe_to_program, false);
 
        return true;
 }
index c279982947e10ae7cb020485ae850f531a81a1dd..10527593868cc91031c48031c9d5532f4f0d5dd0 100644 (file)
@@ -2757,6 +2757,7 @@ static const struct hw_sequencer_funcs dce110_funcs = {
        .disable_plane = dce110_power_down_fe,
        .pipe_control_lock = dce_pipe_control_lock,
        .interdependent_update_lock = NULL,
+       .cursor_lock = dce_pipe_control_lock,
        .prepare_bandwidth = dce110_prepare_bandwidth,
        .optimize_bandwidth = dce110_optimize_bandwidth,
        .set_drr = set_drr,
index b0357546471b22cf24d40a31480c1a8e09e7f84b..085c1a39b3130a955b4ea27ba8bd5d69bf26603d 100644 (file)
@@ -1625,6 +1625,16 @@ void dcn10_pipe_control_lock(
                hws->funcs.verify_allow_pstate_change_high(dc);
 }
 
+void dcn10_cursor_lock(struct dc *dc, struct pipe_ctx *pipe, bool lock)
+{
+       /* cursor lock is per MPCC tree, so only need to lock one pipe per stream */
+       if (!pipe || pipe->top_pipe)
+               return;
+
+       dc->res_pool->mpc->funcs->cursor_lock(dc->res_pool->mpc,
+                       pipe->stream_res.opp->inst, lock);
+}
+
 static bool wait_for_reset_trigger_to_occur(
        struct dc_context *dc_ctx,
        struct timing_generator *tg)
index 16a50e05ffbfaa13ba23121fe5da7443632241f1..af51424315d5ca9f4c38b0102c22a7a9c20e6c4e 100644 (file)
@@ -49,6 +49,7 @@ void dcn10_pipe_control_lock(
        struct dc *dc,
        struct pipe_ctx *pipe,
        bool lock);
+void dcn10_cursor_lock(struct dc *dc, struct pipe_ctx *pipe, bool lock);
 void dcn10_blank_pixel_data(
                struct dc *dc,
                struct pipe_ctx *pipe_ctx,
index dd02d3983695aba3f6b91c82637edda27a76f1e2..700509bdf5035803d26b0536d53d2545bf3e501c 100644 (file)
@@ -50,6 +50,7 @@ static const struct hw_sequencer_funcs dcn10_funcs = {
        .disable_audio_stream = dce110_disable_audio_stream,
        .disable_plane = dcn10_disable_plane,
        .pipe_control_lock = dcn10_pipe_control_lock,
+       .cursor_lock = dcn10_cursor_lock,
        .interdependent_update_lock = dcn10_lock_all_pipes,
        .prepare_bandwidth = dcn10_prepare_bandwidth,
        .optimize_bandwidth = dcn10_optimize_bandwidth,
index 04f863499cfb75352ef0a2b6a69fe165f645dabd..3fcd408e9103250933044ff3721de622c7d5247c 100644 (file)
@@ -223,6 +223,9 @@ struct mpcc *mpc1_insert_plane(
        REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, dpp_id);
        REG_SET(MPCC_OPP_ID[mpcc_id], 0, MPCC_OPP_ID, tree->opp_id);
 
+       /* Configure VUPDATE lock set for this MPCC to map to the OPP */
+       REG_SET(MPCC_UPDATE_LOCK_SEL[mpcc_id], 0, MPCC_UPDATE_LOCK_SEL, tree->opp_id);
+
        /* update mpc tree mux setting */
        if (tree->opp_list == insert_above_mpcc) {
                /* insert the toppest mpcc */
@@ -318,6 +321,7 @@ void mpc1_remove_mpcc(
                REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, 0xf);
                REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
                REG_SET(MPCC_OPP_ID[mpcc_id],  0, MPCC_OPP_ID,  0xf);
+               REG_SET(MPCC_UPDATE_LOCK_SEL[mpcc_id], 0, MPCC_UPDATE_LOCK_SEL, 0xf);
 
                /* mark this mpcc as not in use */
                mpc10->mpcc_in_use_mask &= ~(1 << mpcc_id);
@@ -328,6 +332,7 @@ void mpc1_remove_mpcc(
                REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, 0xf);
                REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
                REG_SET(MPCC_OPP_ID[mpcc_id],  0, MPCC_OPP_ID,  0xf);
+               REG_SET(MPCC_UPDATE_LOCK_SEL[mpcc_id], 0, MPCC_UPDATE_LOCK_SEL, 0xf);
        }
 }
 
@@ -361,6 +366,7 @@ void mpc1_mpc_init(struct mpc *mpc)
                REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, 0xf);
                REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
                REG_SET(MPCC_OPP_ID[mpcc_id],  0, MPCC_OPP_ID,  0xf);
+               REG_SET(MPCC_UPDATE_LOCK_SEL[mpcc_id], 0, MPCC_UPDATE_LOCK_SEL, 0xf);
 
                mpc1_init_mpcc(&(mpc->mpcc_array[mpcc_id]), mpcc_id);
        }
@@ -381,6 +387,7 @@ void mpc1_mpc_init_single_inst(struct mpc *mpc, unsigned int mpcc_id)
        REG_SET(MPCC_TOP_SEL[mpcc_id], 0, MPCC_TOP_SEL, 0xf);
        REG_SET(MPCC_BOT_SEL[mpcc_id], 0, MPCC_BOT_SEL, 0xf);
        REG_SET(MPCC_OPP_ID[mpcc_id],  0, MPCC_OPP_ID,  0xf);
+       REG_SET(MPCC_UPDATE_LOCK_SEL[mpcc_id], 0, MPCC_UPDATE_LOCK_SEL, 0xf);
 
        mpc1_init_mpcc(&(mpc->mpcc_array[mpcc_id]), mpcc_id);
 
@@ -453,6 +460,13 @@ void mpc1_read_mpcc_state(
                        MPCC_BUSY, &s->busy);
 }
 
+void mpc1_cursor_lock(struct mpc *mpc, int opp_id, bool lock)
+{
+       struct dcn10_mpc *mpc10 = TO_DCN10_MPC(mpc);
+
+       REG_SET(CUR[opp_id], 0, CUR_VUPDATE_LOCK_SET, lock ? 1 : 0);
+}
+
 static const struct mpc_funcs dcn10_mpc_funcs = {
        .read_mpcc_state = mpc1_read_mpcc_state,
        .insert_plane = mpc1_insert_plane,
@@ -464,6 +478,7 @@ static const struct mpc_funcs dcn10_mpc_funcs = {
        .assert_mpcc_idle_before_connect = mpc1_assert_mpcc_idle_before_connect,
        .init_mpcc_list_from_hw = mpc1_init_mpcc_list_from_hw,
        .update_blending = mpc1_update_blending,
+       .cursor_lock = mpc1_cursor_lock,
        .set_denorm = NULL,
        .set_denorm_clamp = NULL,
        .set_output_csc = NULL,
index 962a68e322ee24b5015e3f37ceb9beec600440ab..66a4719c22a0c15a4fe4f2c9696ae16af5fe29d6 100644 (file)
        SRII(MPCC_BG_G_Y, MPCC, inst),\
        SRII(MPCC_BG_R_CR, MPCC, inst),\
        SRII(MPCC_BG_B_CB, MPCC, inst),\
-       SRII(MPCC_BG_B_CB, MPCC, inst),\
-       SRII(MPCC_SM_CONTROL, MPCC, inst)
+       SRII(MPCC_SM_CONTROL, MPCC, inst),\
+       SRII(MPCC_UPDATE_LOCK_SEL, MPCC, inst)
 
 #define MPC_OUT_MUX_COMMON_REG_LIST_DCN1_0(inst) \
-       SRII(MUX, MPC_OUT, inst)
+       SRII(MUX, MPC_OUT, inst),\
+       VUPDATE_SRII(CUR, VUPDATE_LOCK_SET, inst)
 
 #define MPC_COMMON_REG_VARIABLE_LIST \
        uint32_t MPCC_TOP_SEL[MAX_MPCC]; \
@@ -55,7 +56,9 @@
        uint32_t MPCC_BG_R_CR[MAX_MPCC]; \
        uint32_t MPCC_BG_B_CB[MAX_MPCC]; \
        uint32_t MPCC_SM_CONTROL[MAX_MPCC]; \
-       uint32_t MUX[MAX_OPP];
+       uint32_t MUX[MAX_OPP]; \
+       uint32_t MPCC_UPDATE_LOCK_SEL[MAX_MPCC]; \
+       uint32_t CUR[MAX_OPP];
 
 #define MPC_COMMON_MASK_SH_LIST_DCN1_0(mask_sh)\
        SF(MPCC0_MPCC_TOP_SEL, MPCC_TOP_SEL, mask_sh),\
@@ -78,7 +81,8 @@
        SF(MPCC0_MPCC_SM_CONTROL, MPCC_SM_FIELD_ALT, mask_sh),\
        SF(MPCC0_MPCC_SM_CONTROL, MPCC_SM_FORCE_NEXT_FRAME_POL, mask_sh),\
        SF(MPCC0_MPCC_SM_CONTROL, MPCC_SM_FORCE_NEXT_TOP_POL, mask_sh),\
-       SF(MPC_OUT0_MUX, MPC_OUT_MUX, mask_sh)
+       SF(MPC_OUT0_MUX, MPC_OUT_MUX, mask_sh),\
+       SF(MPCC0_MPCC_UPDATE_LOCK_SEL, MPCC_UPDATE_LOCK_SEL, mask_sh)
 
 #define MPC_REG_FIELD_LIST(type) \
        type MPCC_TOP_SEL;\
        type MPCC_SM_FIELD_ALT;\
        type MPCC_SM_FORCE_NEXT_FRAME_POL;\
        type MPCC_SM_FORCE_NEXT_TOP_POL;\
-       type MPC_OUT_MUX;
+       type MPC_OUT_MUX;\
+       type MPCC_UPDATE_LOCK_SEL;\
+       type CUR_VUPDATE_LOCK_SET;
 
 struct dcn_mpc_registers {
        MPC_COMMON_REG_VARIABLE_LIST
@@ -192,4 +198,6 @@ void mpc1_read_mpcc_state(
                int mpcc_inst,
                struct mpcc_state *s);
 
+void mpc1_cursor_lock(struct mpc *mpc, int opp_id, bool lock);
+
 #endif
index 07265ca7d28cc083eebaaa2381cf3413be78be3e..ba849aa31e6e77346fc6c25f028cf5251929e6a8 100644 (file)
@@ -181,6 +181,14 @@ enum dcn10_clk_src_array_id {
        .reg_name[id] = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
                                        mm ## block ## id ## _ ## reg_name
 
+#define VUPDATE_SRII(reg_name, block, id)\
+       .reg_name[id] = BASE(mm ## reg_name ## 0 ## _ ## block ## id ## _BASE_IDX) + \
+                                       mm ## reg_name ## 0 ## _ ## block ## id
+
+/* set field/register/bitfield name */
+#define SFRB(field_name, reg_name, bitfield, post_fix)\
+       .field_name = reg_name ## __ ## bitfield ## post_fix
+
 /* NBIO */
 #define NBIO_BASE_INNER(seg) \
        NBIF_BASE__INST0_SEG ## seg
@@ -419,11 +427,13 @@ static const struct dcn_mpc_registers mpc_regs = {
 };
 
 static const struct dcn_mpc_shift mpc_shift = {
-       MPC_COMMON_MASK_SH_LIST_DCN1_0(__SHIFT)
+       MPC_COMMON_MASK_SH_LIST_DCN1_0(__SHIFT),\
+       SFRB(CUR_VUPDATE_LOCK_SET, CUR0_VUPDATE_LOCK_SET0, CUR0_VUPDATE_LOCK_SET, __SHIFT)
 };
 
 static const struct dcn_mpc_mask mpc_mask = {
-       MPC_COMMON_MASK_SH_LIST_DCN1_0(_MASK),
+       MPC_COMMON_MASK_SH_LIST_DCN1_0(_MASK),\
+       SFRB(CUR_VUPDATE_LOCK_SET, CUR0_VUPDATE_LOCK_SET0, CUR0_VUPDATE_LOCK_SET, _MASK)
 };
 
 #define tg_regs(id)\
index 1e73357eda340acace5542a64e6045d6fb65b791..6a21228893eee21f277557093d7c79bf73b8f1ab 100644 (file)
@@ -52,6 +52,7 @@ static const struct hw_sequencer_funcs dcn20_funcs = {
        .disable_plane = dcn20_disable_plane,
        .pipe_control_lock = dcn20_pipe_control_lock,
        .interdependent_update_lock = dcn10_lock_all_pipes,
+       .cursor_lock = dcn10_cursor_lock,
        .prepare_bandwidth = dcn20_prepare_bandwidth,
        .optimize_bandwidth = dcn20_optimize_bandwidth,
        .update_bandwidth = dcn20_update_bandwidth,
index de9c857ab3e97abf9bd8ca0e53896a391b46e55f..570dfd9a243f732e878fc4b7e3365d9fa3fc28e5 100644 (file)
@@ -545,6 +545,7 @@ const struct mpc_funcs dcn20_mpc_funcs = {
        .mpc_init = mpc1_mpc_init,
        .mpc_init_single_inst = mpc1_mpc_init_single_inst,
        .update_blending = mpc2_update_blending,
+       .cursor_lock = mpc1_cursor_lock,
        .get_mpcc_for_dpp = mpc2_get_mpcc_for_dpp,
        .wait_for_idle = mpc2_assert_idle_mpcc,
        .assert_mpcc_idle_before_connect = mpc2_assert_mpcc_idle_before_connect,
index c78fd5123497b6f14a4b043aba3c01aec9ba4297..496658f420dbdb6cb167059bc3a84f48023b262c 100644 (file)
        SF(MPC_OUT0_DENORM_CLAMP_G_Y, MPC_OUT_DENORM_CLAMP_MAX_G_Y, mask_sh),\
        SF(MPC_OUT0_DENORM_CLAMP_G_Y, MPC_OUT_DENORM_CLAMP_MIN_G_Y, mask_sh),\
        SF(MPC_OUT0_DENORM_CLAMP_B_CB, MPC_OUT_DENORM_CLAMP_MAX_B_CB, mask_sh),\
-       SF(MPC_OUT0_DENORM_CLAMP_B_CB, MPC_OUT_DENORM_CLAMP_MIN_B_CB, mask_sh)
+       SF(MPC_OUT0_DENORM_CLAMP_B_CB, MPC_OUT_DENORM_CLAMP_MIN_B_CB, mask_sh),\
+       SF(CUR_VUPDATE_LOCK_SET0, CUR_VUPDATE_LOCK_SET, mask_sh)
 
 /*
  *     DCN2 MPC_OCSC debug status register:
index 5cdbba0cd87316a7df2611b434f885412e7f4fd4..c3535bd3965b2747677ea0b7ade34c4782e45d5a 100644 (file)
@@ -508,6 +508,10 @@ enum dcn20_clk_src_array_id {
        .block ## _ ## reg_name[id] = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
                                        mm ## block ## id ## _ ## reg_name
 
+#define VUPDATE_SRII(reg_name, block, id)\
+       .reg_name[id] = BASE(mm ## reg_name ## _ ## block ## id ## _BASE_IDX) + \
+                                       mm ## reg_name ## _ ## block ## id
+
 /* NBIO */
 #define NBIO_BASE_INNER(seg) \
        NBIO_BASE__INST0_SEG ## seg
index b9ff9767e08fd4680f5f8fb512b81dc5fb7936d8..707ce0f28fab3b9fc13576d82aff4efcb137d90e 100644 (file)
@@ -53,6 +53,7 @@ static const struct hw_sequencer_funcs dcn21_funcs = {
        .disable_plane = dcn20_disable_plane,
        .pipe_control_lock = dcn20_pipe_control_lock,
        .interdependent_update_lock = dcn10_lock_all_pipes,
+       .cursor_lock = dcn10_cursor_lock,
        .prepare_bandwidth = dcn20_prepare_bandwidth,
        .optimize_bandwidth = dcn20_optimize_bandwidth,
        .update_bandwidth = dcn20_update_bandwidth,
index db7cd91ac6a58030b0184def675068dc45126301..a721bb401ef0822cfdedbe384e4c08745bc7f3e1 100644 (file)
@@ -340,6 +340,10 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = {
        .block ## _ ## reg_name[id] = BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
                                        mm ## block ## id ## _ ## reg_name
 
+#define VUPDATE_SRII(reg_name, block, id)\
+       .reg_name[id] = BASE(mm ## reg_name ## _ ## block ## id ## _BASE_IDX) + \
+                                       mm ## reg_name ## _ ## block ## id
+
 /* NBIO */
 #define NBIO_BASE_INNER(seg) \
        NBIF0_BASE__INST0_SEG ## seg
index 094afc4c817310332dd78521ee1ebe56e79094b1..50ee8aa7ec3b3317ababfea194699af9d9aaef48 100644 (file)
@@ -210,6 +210,22 @@ struct mpc_funcs {
                struct mpcc_blnd_cfg *blnd_cfg,
                int mpcc_id);
 
+       /*
+        * Lock cursor updates for the specified OPP.
+        * OPP defines the set of MPCC that are locked together for cursor.
+        *
+        * Parameters:
+        * [in]         mpc             - MPC context.
+        * [in]     opp_id      - The OPP to lock cursor updates on
+        * [in]         lock    - lock/unlock the OPP
+        *
+        * Return:  void
+        */
+       void (*cursor_lock)(
+                       struct mpc *mpc,
+                       int opp_id,
+                       bool lock);
+
        struct mpcc* (*get_mpcc_for_dpp)(
                        struct mpc_tree *tree,
                        int dpp_id);
index d4c1fb242c6378a0b8439a7075eba0f288a89fbc..e57467d99d66d956e8f2b27439c9c3573eac2d29 100644 (file)
@@ -86,6 +86,7 @@ struct hw_sequencer_funcs {
                        struct dc_state *context, bool lock);
        void (*set_flip_control_gsl)(struct pipe_ctx *pipe_ctx,
                        bool flip_immediate);
+       void (*cursor_lock)(struct dc *dc, struct pipe_ctx *pipe, bool lock);
 
        /* Timing Related */
        void (*get_position)(struct pipe_ctx **pipe_ctx, int num_pipes,