November 2024 - Linux-stable-mirror

[PATCH 6.1] drm/amd: check num of link levels when update pcie param

by Bin Lan

From: "Lin.Cao" <lincao12(a)amd.com> [ Upstream commit 406e8845356d18bdf3d3a23b347faf67706472ec ] In SR-IOV environment, the value of pcie_table->num_of_link_levels will be 0, and num_of_levels - 1 will cause array index out of bounds Signed-off-by: Lin.Cao <lincao12(a)amd.com> Acked-by: Jingwen Chen <Jingwen.Chen2(a)amd.com> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> [ Resolve minor conflicts to fix CVE-2023-52812 ] Signed-off-by: Bin Lan <bin.lan.cn(a)windriver.com> --- drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c index 3aab1caed2ac..e159f715c1c2 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c @@ -2498,6 +2498,9 @@ int smu_v13_0_update_pcie_parameters(struct smu_context *smu, uint32_t smu_pcie_arg; int ret, i; + if (!num_of_levels) + return 0; + if (!amdgpu_device_pcie_dynamic_switching_supported()) { if (pcie_table->pcie_gen[num_of_levels - 1] < pcie_gen_cap) pcie_gen_cap = pcie_table->pcie_gen[num_of_levels - 1]; -- 2.43.0

7 months, 1 week

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[PATCH 8/9] drm/amd/display: Add hblank borrowing support

by Alex Hung

From: Chris Park <chris.park(a)amd.com> [WHY] Some DSC timing failed at bandwidth validation due to hactive can't be evenly divided on each ODM segment. [HOW] Borrow from hblank to increase hactive to support these timing. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Wenjing Liu <wenjing.liu(a)amd.com> Signed-off-by: Chris Park <chris.park(a)amd.com> Signed-off-by: Alex Hung <alex.hung(a)amd.com> --- .../gpu/drm/amd/display/dc/core/dc_resource.c | 42 ++++++++++++++++++- drivers/gpu/drm/amd/display/dc/dc.h | 1 + .../gpu/drm/amd/display/dc/dc_spl_translate.c | 2 +- .../dc/dml2/dml21/dml21_translation_helper.c | 21 +++++++++- .../amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 3 +- .../amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 7 +++- .../gpu/drm/amd/display/dc/inc/core_types.h | 2 + .../gpu/drm/amd/display/dc/link/link_dpms.c | 3 +- .../dc/resource/dcn32/dcn32_resource.c | 1 + 9 files changed, 75 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 619fad17de55..626f75b6ad00 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -2094,7 +2094,8 @@ int resource_get_odm_slice_dst_width(struct pipe_ctx *otg_master, count = resource_get_odm_slice_count(otg_master); h_active = timing->h_addressable + timing->h_border_left + - timing->h_border_right; + timing->h_border_right + + otg_master->hblank_borrow; width = h_active / count; if (otg_master->stream_res.tg) @@ -4026,6 +4027,41 @@ enum dc_status dc_validate_with_context(struct dc *dc, return res; } +/** + * decide_hblank_borrow - Decides the horizontal blanking borrow value for a given pipe context. + * @pipe_ctx: Pointer to the pipe context structure. + * + * This function calculates the horizontal blanking borrow value for a given pipe context based on the + * display stream compression (DSC) configuration. If the horizontal active pixels (hactive) are less + * than the total width of the DSC slices, it sets the hblank_borrow value to the difference. If the + * total horizontal timing minus the hblank_borrow value is less than 32, it resets the hblank_borrow + * value to 0. + */ +static void decide_hblank_borrow(struct pipe_ctx *pipe_ctx) +{ + uint32_t hactive; + uint32_t ceil_slice_width; + struct dc_stream_state *stream = NULL; + + if (!pipe_ctx) + return; + + stream = pipe_ctx->stream; + + if (stream->timing.flags.DSC) { + hactive = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right; + + /* Assume if determined slices does not divide Hactive evenly, Hborrow is needed for padding*/ + if (hactive % stream->timing.dsc_cfg.num_slices_h != 0) { + ceil_slice_width = (hactive / stream->timing.dsc_cfg.num_slices_h) + 1; + pipe_ctx->hblank_borrow = ceil_slice_width * stream->timing.dsc_cfg.num_slices_h - hactive; + + if (stream->timing.h_total - hactive - pipe_ctx->hblank_borrow < 32) + pipe_ctx->hblank_borrow = 0; + } + } +} + /** * dc_validate_global_state() - Determine if hardware can support a given state * @@ -4064,6 +4100,10 @@ enum dc_status dc_validate_global_state( if (pipe_ctx->stream != stream) continue; + /* Decide whether hblank borrow is needed and save it in pipe_ctx */ + if (dc->debug.enable_hblank_borrow) + decide_hblank_borrow(pipe_ctx); + if (dc->res_pool->funcs->patch_unknown_plane_state && pipe_ctx->plane_state && pipe_ctx->plane_state->tiling_info.gfx9.swizzle == DC_SW_UNKNOWN) { diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 5f1b3ce67cd1..ec64061080fa 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -1070,6 +1070,7 @@ struct dc_debug_options { unsigned int scale_to_sharpness_policy; bool skip_full_updated_if_possible; unsigned int enable_oled_edp_power_up_opt; + bool enable_hblank_borrow; }; diff --git a/drivers/gpu/drm/amd/display/dc/dc_spl_translate.c b/drivers/gpu/drm/amd/display/dc/dc_spl_translate.c index 2fee0b92f1f5..a4907cfe3f08 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_spl_translate.c +++ b/drivers/gpu/drm/amd/display/dc/dc_spl_translate.c @@ -122,7 +122,7 @@ void translate_SPL_in_params_from_pipe_ctx(struct pipe_ctx *pipe_ctx, struct spl spl_in->odm_slice_index = resource_get_odm_slice_index(pipe_ctx); // Make spl input basic out info output_size width point to stream h active spl_in->basic_out.output_size.width = - stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right; + stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right + pipe_ctx->hblank_borrow; // Make spl input basic out info output_size height point to v active spl_in->basic_out.output_size.height = stream->timing.v_addressable + stream->timing.v_border_bottom + stream->timing.v_border_top; diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c index f66493528f42..c6a5a8614679 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c @@ -445,6 +445,21 @@ static void populate_dml21_timing_config_from_stream_state(struct dml2_timing_cf timing->vblank_nom = timing->v_total - timing->v_active; } +/** + * adjust_dml21_hblank_timing_config_from_pipe_ctx - Adjusts the horizontal blanking timing configuration + * based on the pipe context. + * @timing: Pointer to the dml2_timing_cfg structure to be adjusted. + * @pipe: Pointer to the pipe_ctx structure containing the horizontal blanking borrow value. + * + * This function modifies the horizontal active and blank end timings by adding and subtracting + * the horizontal blanking borrow value from the pipe context, respectively. + */ +static void adjust_dml21_hblank_timing_config_from_pipe_ctx(struct dml2_timing_cfg *timing, struct pipe_ctx *pipe) +{ + timing->h_active += pipe->hblank_borrow; + timing->h_blank_end -= pipe->hblank_borrow; +} + static void populate_dml21_output_config_from_stream_state(struct dml2_link_output_cfg *output, struct dc_stream_state *stream, const struct pipe_ctx *pipe) { @@ -732,6 +747,7 @@ static const struct scaler_data *get_scaler_data_for_plane( temp_pipe->plane_state = pipe->plane_state; temp_pipe->plane_res.scl_data.taps = pipe->plane_res.scl_data.taps; temp_pipe->stream_res = pipe->stream_res; + temp_pipe->hblank_borrow = pipe->hblank_borrow; dml_ctx->config.callbacks.build_scaling_params(temp_pipe); break; } @@ -996,6 +1012,7 @@ bool dml21_map_dc_state_into_dml_display_cfg(const struct dc *in_dc, struct dc_s ASSERT(disp_cfg_stream_location >= 0 && disp_cfg_stream_location <= __DML2_WRAPPER_MAX_STREAMS_PLANES__); populate_dml21_timing_config_from_stream_state(&dml_dispcfg->stream_descriptors[disp_cfg_stream_location].timing, context->streams[stream_index], dml_ctx); + adjust_dml21_hblank_timing_config_from_pipe_ctx(&dml_dispcfg->stream_descriptors[disp_cfg_stream_location].timing, &context->res_ctx.pipe_ctx[stream_index]); populate_dml21_output_config_from_stream_state(&dml_dispcfg->stream_descriptors[disp_cfg_stream_location].output, context->streams[stream_index], &context->res_ctx.pipe_ctx[stream_index]); populate_dml21_stream_overrides_from_stream_state(&dml_dispcfg->stream_descriptors[disp_cfg_stream_location], context->streams[stream_index]); @@ -1134,12 +1151,12 @@ void dml21_populate_pipe_ctx_dlg_params(struct dml2_context *dml_ctx, struct dc_ struct dc_crtc_timing *timing = &pipe_ctx->stream->timing; union dml2_global_sync_programming *global_sync = &stream_programming->global_sync; - hactive = timing->h_addressable + timing->h_border_left + timing->h_border_right; + hactive = timing->h_addressable + timing->h_border_left + timing->h_border_right + pipe_ctx->hblank_borrow; vactive = timing->v_addressable + timing->v_border_bottom + timing->v_border_top; hblank_start = pipe_ctx->stream->timing.h_total - pipe_ctx->stream->timing.h_front_porch; vblank_start = pipe_ctx->stream->timing.v_total - pipe_ctx->stream->timing.v_front_porch; - hblank_end = hblank_start - timing->h_addressable - timing->h_border_left - timing->h_border_right; + hblank_end = hblank_start - timing->h_addressable - timing->h_border_left - timing->h_border_right - pipe_ctx->hblank_borrow; vblank_end = vblank_start - timing->v_addressable - timing->v_border_top - timing->v_border_bottom; if (dml_ctx->config.svp_pstate.callbacks.get_pipe_subvp_type(context, pipe_ctx) == SUBVP_PHANTOM) { diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c index d7f8b2dcaa6b..fa11f075d1f9 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c @@ -1049,7 +1049,8 @@ void dcn32_update_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable) } /* Enable DSC hw block */ - dsc_cfg.pic_width = (stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right) / opp_cnt; + dsc_cfg.pic_width = (stream->timing.h_addressable + pipe_ctx->hblank_borrow + + stream->timing.h_border_left + stream->timing.h_border_right) / opp_cnt; dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom; dsc_cfg.pixel_encoding = stream->timing.pixel_encoding; dsc_cfg.color_depth = stream->timing.display_color_depth; diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c index 5de11e2837c0..307782592789 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c @@ -820,6 +820,7 @@ enum dc_status dcn401_enable_stream_timing( int opp_cnt = 1; int opp_inst[MAX_PIPES] = {0}; struct pipe_ctx *opp_heads[MAX_PIPES] = {0}; + struct dc_crtc_timing patched_crtc_timing = stream->timing; bool manual_mode; unsigned int tmds_div = PIXEL_RATE_DIV_NA; unsigned int unused_div = PIXEL_RATE_DIV_NA; @@ -874,9 +875,13 @@ enum dc_status dcn401_enable_stream_timing( if (dc->hwseq->funcs.PLAT_58856_wa && (!dc_is_dp_signal(stream->signal))) dc->hwseq->funcs.PLAT_58856_wa(context, pipe_ctx); + /* if we are borrowing from hblank, h_addressable needs to be adjusted */ + if (dc->debug.enable_hblank_borrow) + patched_crtc_timing.h_addressable = patched_crtc_timing.h_addressable + pipe_ctx->hblank_borrow; + pipe_ctx->stream_res.tg->funcs->program_timing( pipe_ctx->stream_res.tg, - &stream->timing, + &patched_crtc_timing, pipe_ctx->pipe_dlg_param.vready_offset, pipe_ctx->pipe_dlg_param.vstartup_start, pipe_ctx->pipe_dlg_param.vupdate_offset, diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h index 3061dca47dd2..2edd5b38ce4f 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h +++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h @@ -478,6 +478,8 @@ struct pipe_ctx { /* subvp_index: only valid if the pipe is a SUBVP_MAIN*/ uint8_t subvp_index; struct pixel_rate_divider pixel_rate_divider; + /* pixels borrowed from hblank to hactive */ + uint8_t hblank_borrow; }; /* Data used for dynamic link encoder assignment. diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c index 41cab9ad6885..5d66bfc7fe6e 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c @@ -808,7 +808,8 @@ void link_set_dsc_on_stream(struct pipe_ctx *pipe_ctx, bool enable) enum optc_dsc_mode optc_dsc_mode; /* Enable DSC hw block */ - dsc_cfg.pic_width = (stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right) / opp_cnt; + dsc_cfg.pic_width = (stream->timing.h_addressable + pipe_ctx->hblank_borrow + + stream->timing.h_border_left + stream->timing.h_border_right) / opp_cnt; dsc_cfg.pic_height = stream->timing.v_addressable + stream->timing.v_border_top + stream->timing.v_border_bottom; dsc_cfg.pixel_encoding = stream->timing.pixel_encoding; dsc_cfg.color_depth = stream->timing.display_color_depth; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c index 984d23bcbc27..12d247a7ec45 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c @@ -2804,6 +2804,7 @@ struct pipe_ctx *dcn32_acquire_free_pipe_as_secondary_opp_head( free_pipe->plane_res.xfm = pool->transforms[free_pipe_idx]; free_pipe->plane_res.dpp = pool->dpps[free_pipe_idx]; free_pipe->plane_res.mpcc_inst = pool->dpps[free_pipe_idx]->inst; + free_pipe->hblank_borrow = otg_master->hblank_borrow; if (free_pipe->stream->timing.flags.DSC == 1) { dcn20_acquire_dsc(free_pipe->stream->ctx->dc, &new_ctx->res_ctx, -- 2.43.0

7 months, 1 week

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[PATCH 7/9] drm/amd/display: Limit VTotal range to max hw cap minus fp

by Alex Hung

From: Dillon Varone <dillon.varone(a)amd.com> [WHY & HOW] Hardware does not support the VTotal to be between fp2 lines of the maximum possible VTotal, so add a capability flag to track it and apply where necessary. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Jun Lei <jun.lei(a)amd.com> Reviewed-by: Anthony Koo <anthony.koo(a)amd.com> Signed-off-by: Dillon Varone <dillon.varone(a)amd.com> Signed-off-by: Alex Hung <alex.hung(a)amd.com> --- drivers/gpu/drm/amd/display/dc/dc.h | 1 + .../dc/dml2/dml21/dml21_translation_helper.c | 27 +++++++++++++++++-- .../dc/resource/dcn30/dcn30_resource.c | 1 + .../dc/resource/dcn302/dcn302_resource.c | 1 + .../dc/resource/dcn303/dcn303_resource.c | 1 + .../dc/resource/dcn32/dcn32_resource.c | 1 + .../dc/resource/dcn321/dcn321_resource.c | 1 + .../dc/resource/dcn35/dcn35_resource.c | 1 + .../dc/resource/dcn351/dcn351_resource.c | 1 + .../dc/resource/dcn401/dcn401_resource.c | 1 + .../amd/display/modules/freesync/freesync.c | 13 ++++++++- 11 files changed, 46 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 943e52bb2c31..5f1b3ce67cd1 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -290,6 +290,7 @@ struct dc_caps { uint16_t subvp_vertical_int_margin_us; bool seamless_odm; uint32_t max_v_total; + bool vtotal_limited_by_fp2; uint32_t max_disp_clock_khz_at_vmin; uint8_t subvp_drr_vblank_start_margin_us; bool cursor_not_scaled; diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c index 138b4b1e42ed..f66493528f42 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c @@ -339,11 +339,22 @@ void dml21_apply_soc_bb_overrides(struct dml2_initialize_instance_in_out *dml_in // } } +static unsigned int calc_max_hardware_v_total(const struct dc_stream_state *stream) +{ + unsigned int max_hw_v_total = stream->ctx->dc->caps.max_v_total; + + if (stream->ctx->dc->caps.vtotal_limited_by_fp2) { + max_hw_v_total -= stream->timing.v_front_porch + 1; + } + + return max_hw_v_total; +} + static void populate_dml21_timing_config_from_stream_state(struct dml2_timing_cfg *timing, struct dc_stream_state *stream, struct dml2_context *dml_ctx) { - unsigned int hblank_start, vblank_start; + unsigned int hblank_start, vblank_start, min_hardware_refresh_in_uhz; timing->h_active = stream->timing.h_addressable + stream->timing.h_border_left + stream->timing.h_border_right; timing->v_active = stream->timing.v_addressable + stream->timing.v_border_bottom + stream->timing.v_border_top; @@ -371,11 +382,23 @@ static void populate_dml21_timing_config_from_stream_state(struct dml2_timing_cf - stream->timing.v_border_top - stream->timing.v_border_bottom; timing->drr_config.enabled = stream->ignore_msa_timing_param; - timing->drr_config.min_refresh_uhz = stream->timing.min_refresh_in_uhz; timing->drr_config.drr_active_variable = stream->vrr_active_variable; timing->drr_config.drr_active_fixed = stream->vrr_active_fixed; timing->drr_config.disallowed = !stream->allow_freesync; + /* limit min refresh rate to DC cap */ + min_hardware_refresh_in_uhz = stream->timing.min_refresh_in_uhz; + if (stream->ctx->dc->caps.max_v_total != 0) { + min_hardware_refresh_in_uhz = div64_u64((stream->timing.pix_clk_100hz * 100000000ULL), + (stream->timing.h_total * (long long)calc_max_hardware_v_total(stream))); + } + + if (stream->timing.min_refresh_in_uhz > min_hardware_refresh_in_uhz) { + timing->drr_config.min_refresh_uhz = stream->timing.min_refresh_in_uhz; + } else { + timing->drr_config.min_refresh_uhz = min_hardware_refresh_in_uhz; + } + if (dml_ctx->config.callbacks.get_max_flickerless_instant_vtotal_increase && stream->ctx->dc->config.enable_fpo_flicker_detection == 1) timing->drr_config.max_instant_vtotal_delta = dml_ctx->config.callbacks.get_max_flickerless_instant_vtotal_increase(stream, false); diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c index cd31e4f16c14..bfd0eccbed28 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn30/dcn30_resource.c @@ -2353,6 +2353,7 @@ static bool dcn30_resource_construct( dc->caps.dp_hdmi21_pcon_support = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; /* read VBIOS LTTPR caps */ { diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn302/dcn302_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn302/dcn302_resource.c index 02af8b8f4d27..7baefc910a3d 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn302/dcn302_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn302/dcn302_resource.c @@ -1233,6 +1233,7 @@ static bool dcn302_resource_construct( dc->caps.extended_aux_timeout_support = true; dc->caps.dmcub_support = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; /* Color pipeline capabilities */ dc->caps.color.dpp.dcn_arch = 1; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn303/dcn303_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn303/dcn303_resource.c index 7002a8dd358a..8a57d46ad15f 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn303/dcn303_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn303/dcn303_resource.c @@ -1178,6 +1178,7 @@ static bool dcn303_resource_construct( dc->caps.extended_aux_timeout_support = true; dc->caps.dmcub_support = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; /* Color pipeline capabilities */ dc->caps.color.dpp.dcn_arch = 1; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c index 01d1a11d5545..984d23bcbc27 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c @@ -2189,6 +2189,7 @@ static bool dcn32_resource_construct( dc->caps.dmcub_support = true; dc->caps.seamless_odm = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; /* Color pipeline capabilities */ dc->caps.color.dpp.dcn_arch = 1; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c index 5cb74fd9cb7d..06b9479c8bd3 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c @@ -1742,6 +1742,7 @@ static bool dcn321_resource_construct( dc->caps.extended_aux_timeout_support = true; dc->caps.dmcub_support = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; /* Color pipeline capabilities */ dc->caps.color.dpp.dcn_arch = 1; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c index 09a5a9474903..89e2adcf2a28 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c @@ -1850,6 +1850,7 @@ static bool dcn35_resource_construct( dc->caps.zstate_support = true; dc->caps.ips_support = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; /* Color pipeline capabilities */ dc->caps.color.dpp.dcn_arch = 1; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c index fe382f9b6ff2..263a37c1cd3a 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c @@ -1829,6 +1829,7 @@ static bool dcn351_resource_construct( dc->caps.zstate_support = true; dc->caps.ips_support = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; /* Color pipeline capabilities */ dc->caps.color.dpp.dcn_arch = 1; diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c index db93bac247c0..2a3dabfe3cea 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn401/dcn401_resource.c @@ -1864,6 +1864,7 @@ static bool dcn401_resource_construct( dc->caps.extended_aux_timeout_support = true; dc->caps.dmcub_support = true; dc->caps.max_v_total = (1 << 15) - 1; + dc->caps.vtotal_limited_by_fp2 = true; if (ASICREV_IS_GC_12_0_1_A0(dc->ctx->asic_id.hw_internal_rev)) dc->caps.dcc_plane_width_limit = 7680; diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index f980a84dceef..2b3964529539 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -122,6 +122,17 @@ static unsigned int calc_duration_in_us_from_v_total( return duration_in_us; } +static unsigned int calc_max_hardware_v_total(const struct dc_stream_state *stream) +{ + unsigned int max_hw_v_total = stream->ctx->dc->caps.max_v_total; + + if (stream->ctx->dc->caps.vtotal_limited_by_fp2) { + max_hw_v_total -= stream->timing.v_front_porch + 1; + } + + return max_hw_v_total; +} + unsigned int mod_freesync_calc_v_total_from_refresh( const struct dc_stream_state *stream, unsigned int refresh_in_uhz) @@ -1016,7 +1027,7 @@ void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, if (stream->ctx->dc->caps.max_v_total != 0 && stream->timing.h_total != 0) { min_hardware_refresh_in_uhz = div64_u64((stream->timing.pix_clk_100hz * 100000000ULL), - (stream->timing.h_total * (long long)stream->ctx->dc->caps.max_v_total)); + (stream->timing.h_total * (long long)calc_max_hardware_v_total(stream))); } /* Limit minimum refresh rate to what can be supported by hardware */ min_refresh_in_uhz = min_hardware_refresh_in_uhz > in_config->min_refresh_in_uhz ? -- 2.43.0

7 months, 1 week

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[PATCH 6/9] drm/amd/display: Correct prefetch calculation

by Alex Hung

From: Lo-an Chen <lo-an.chen(a)amd.com> [WHY] The minimum value of the dst_y_prefetch_equ was not correct in prefetch calculation whice causes OPTC underflow. [HOW] Add the min operation of dst_y_prefetch_equ in prefetch calculation. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas(a)amd.com> Signed-off-by: Lo-an Chen <lo-an.chen(a)amd.com> Signed-off-by: Alex Hung <alex.hung(a)amd.com> --- drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c index d851c081e376..8dabb1ac0b68 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c @@ -1222,6 +1222,7 @@ static dml_bool_t CalculatePrefetchSchedule(struct display_mode_lib_scratch_st * s->dst_y_prefetch_oto = s->Tvm_oto_lines + 2 * s->Tr0_oto_lines + s->Lsw_oto; s->dst_y_prefetch_equ = p->VStartup - (*p->TSetup + dml_max(p->TWait + p->TCalc, *p->Tdmdl)) / s->LineTime - (*p->DSTYAfterScaler + (dml_float_t) *p->DSTXAfterScaler / (dml_float_t)p->myPipe->HTotal); + s->dst_y_prefetch_equ = dml_min(s->dst_y_prefetch_equ, 63.75); // limit to the reg limit of U6.2 for DST_Y_PREFETCH #ifdef __DML_VBA_DEBUG__ dml_print("DML::%s: HTotal = %u\n", __func__, p->myPipe->HTotal); -- 2.43.0

7 months, 1 week

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[PATCH 5/9] drm/amd/display: Add option to retrieve detile buffer size

by Alex Hung

From: Sung Lee <Sung.Lee(a)amd.com> [WHY] For better power profiling knowing the detile buffer size at a given point in time would be useful. [HOW] Add interface to retrieve detile buffer from dc state. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: Aric Cyr <aric.cyr(a)amd.com> Signed-off-by: Sung Lee <Sung.Lee(a)amd.com> Signed-off-by: Alex Hung <alex.hung(a)amd.com> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 18 ++++++++++++++++++ drivers/gpu/drm/amd/display/dc/dc.h | 2 ++ .../gpu/drm/amd/display/dc/inc/core_types.h | 1 + .../display/dc/resource/dcn31/dcn31_resource.c | 7 +++++++ .../display/dc/resource/dcn31/dcn31_resource.h | 3 +++ .../dc/resource/dcn314/dcn314_resource.c | 1 + .../dc/resource/dcn315/dcn315_resource.c | 1 + .../dc/resource/dcn316/dcn316_resource.c | 1 + .../display/dc/resource/dcn35/dcn35_resource.c | 1 + .../dc/resource/dcn351/dcn351_resource.c | 1 + 10 files changed, 36 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 1dd26d5df6b9..49fe7dcf9372 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -6109,3 +6109,21 @@ struct dc_power_profile dc_get_power_profile_for_dc_state(const struct dc_state profile.power_level = dc->res_pool->funcs->get_power_profile(context); return profile; } + +/* + ********************************************************************************** + * dc_get_det_buffer_size_from_state() - extracts detile buffer size from dc state + * + * Called when DM wants to log detile buffer size from dc_state + * + ********************************************************************************** + */ +unsigned int dc_get_det_buffer_size_from_state(const struct dc_state *context) +{ + struct dc *dc = context->clk_mgr->ctx->dc; + + if (dc->res_pool->funcs->get_det_buffer_size) + return dc->res_pool->funcs->get_det_buffer_size(context); + else + return 0; +} diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index b5613b71742f..943e52bb2c31 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -2551,6 +2551,8 @@ struct dc_power_profile { struct dc_power_profile dc_get_power_profile_for_dc_state(const struct dc_state *context); +unsigned int dc_get_det_buffer_size_from_state(const struct dc_state *context); + /* DSC Interfaces */ #include "dc_dsc.h" diff --git a/drivers/gpu/drm/amd/display/dc/inc/core_types.h b/drivers/gpu/drm/amd/display/dc/inc/core_types.h index 8597e866bfe6..3061dca47dd2 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/core_types.h +++ b/drivers/gpu/drm/amd/display/dc/inc/core_types.h @@ -219,6 +219,7 @@ struct resource_funcs { * Get indicator of power from a context that went through full validation */ int (*get_power_profile)(const struct dc_state *context); + unsigned int (*get_det_buffer_size)(const struct dc_state *context); }; struct audio_support{ diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c index c16cf1c8f7f9..54ec3d8e920c 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c @@ -1720,6 +1720,12 @@ int dcn31_populate_dml_pipes_from_context( return pipe_cnt; } +unsigned int dcn31_get_det_buffer_size( + const struct dc_state *context) +{ + return context->bw_ctx.dml.ip.det_buffer_size_kbytes; +} + void dcn31_calculate_wm_and_dlg( struct dc *dc, struct dc_state *context, display_e2e_pipe_params_st *pipes, @@ -1842,6 +1848,7 @@ static struct resource_funcs dcn31_res_pool_funcs = { .update_bw_bounding_box = dcn31_update_bw_bounding_box, .patch_unknown_plane_state = dcn20_patch_unknown_plane_state, .get_panel_config_defaults = dcn31_get_panel_config_defaults, + .get_det_buffer_size = dcn31_get_det_buffer_size, }; static struct clock_source *dcn30_clock_source_create( diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.h b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.h index 901436591ed4..551ad912f7be 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.h +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.h @@ -63,6 +63,9 @@ struct resource_pool *dcn31_create_resource_pool( const struct dc_init_data *init_data, struct dc *dc); +unsigned int dcn31_get_det_buffer_size( + const struct dc_state *context); + /*temp: B0 specific before switch to dcn313 headers*/ #ifndef regPHYPLLF_PIXCLK_RESYNC_CNTL #define regPHYPLLF_PIXCLK_RESYNC_CNTL 0x007e diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c index c0f48c78e968..2794473f2aff 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c @@ -1777,6 +1777,7 @@ static struct resource_funcs dcn314_res_pool_funcs = { .patch_unknown_plane_state = dcn20_patch_unknown_plane_state, .get_panel_config_defaults = dcn314_get_panel_config_defaults, .get_preferred_eng_id_dpia = dcn314_get_preferred_eng_id_dpia, + .get_det_buffer_size = dcn31_get_det_buffer_size, }; static struct clock_source *dcn30_clock_source_create( diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c index 6c3295259a81..4ee33eb3381d 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c @@ -1845,6 +1845,7 @@ static struct resource_funcs dcn315_res_pool_funcs = { .patch_unknown_plane_state = dcn20_patch_unknown_plane_state, .get_panel_config_defaults = dcn315_get_panel_config_defaults, .get_power_profile = dcn315_get_power_profile, + .get_det_buffer_size = dcn31_get_det_buffer_size, }; static bool dcn315_resource_construct( diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c index 6edaaadcb173..79eddbafe3c2 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c @@ -1719,6 +1719,7 @@ static struct resource_funcs dcn316_res_pool_funcs = { .update_bw_bounding_box = dcn316_update_bw_bounding_box, .patch_unknown_plane_state = dcn20_patch_unknown_plane_state, .get_panel_config_defaults = dcn316_get_panel_config_defaults, + .get_det_buffer_size = dcn31_get_det_buffer_size, }; static bool dcn316_resource_construct( diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c index 6cc2960b6104..09a5a9474903 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c @@ -1778,6 +1778,7 @@ static struct resource_funcs dcn35_res_pool_funcs = { .patch_unknown_plane_state = dcn20_patch_unknown_plane_state, .get_panel_config_defaults = dcn35_get_panel_config_defaults, .get_preferred_eng_id_dpia = dcn35_get_preferred_eng_id_dpia, + .get_det_buffer_size = dcn31_get_det_buffer_size, }; static bool dcn35_resource_construct( diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c index d87e2641cda1..fe382f9b6ff2 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c @@ -1757,6 +1757,7 @@ static struct resource_funcs dcn351_res_pool_funcs = { .patch_unknown_plane_state = dcn20_patch_unknown_plane_state, .get_panel_config_defaults = dcn35_get_panel_config_defaults, .get_preferred_eng_id_dpia = dcn351_get_preferred_eng_id_dpia, + .get_det_buffer_size = dcn31_get_det_buffer_size, }; static bool dcn351_resource_construct( -- 2.43.0

7 months, 1 week

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[PATCH 1/9] drm/amd/display: Add a left edge pixel if in YCbCr422 or YCbCr420 and odm

by Alex Hung

From: Peterson Guo <peterson.guo(a)amd.com> [WHY] On some cards when odm is used, the monitor will have 2 separate pipes split vertically. When compression is used on the YCbCr colour space on the second pipe to have correct colours, we need to read a pixel from the end of first pipe to accurately display colours. Hardware was programmed properly to account for this extra pixel but it was not calculated properly in software causing a split screen on some monitors. [HOW] The fix adjusts the second pipe's viewport and timings if the pixel encoding is YCbCr422 or YCbCr420. Cc: Mario Limonciello <mario.limonciello(a)amd.com> Cc: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org Reviewed-by: George Shen <george.shen(a)amd.com> Signed-off-by: Peterson Guo <peterson.guo(a)amd.com> Signed-off-by: Alex Hung <alex.hung(a)amd.com> --- .../dc/resource/dcn20/dcn20_resource.c | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn20/dcn20_resource.c index 189d0c85872e..7a5b9aa5292c 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn20/dcn20_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn20/dcn20_resource.c @@ -1510,6 +1510,7 @@ bool dcn20_split_stream_for_odm( if (prev_odm_pipe->plane_state) { struct scaler_data *sd = &prev_odm_pipe->plane_res.scl_data; + struct output_pixel_processor *opp = next_odm_pipe->stream_res.opp; int new_width; /* HACTIVE halved for odm combine */ @@ -1543,7 +1544,28 @@ bool dcn20_split_stream_for_odm( sd->viewport_c.x += dc_fixpt_floor(dc_fixpt_mul_int( sd->ratios.horz_c, sd->h_active - sd->recout.x)); sd->recout.x = 0; + + /* + * When odm is used in YcbCr422 or 420 colour space, a split screen + * will be seen with the previous calculations since the extra left + * edge pixel is accounted for in fmt but not in viewport. + * + * Below are calculations which fix the split by fixing the calculations + * if there is an extra left edge pixel. + */ + if (opp && opp->funcs->opp_get_left_edge_extra_pixel_count + && opp->funcs->opp_get_left_edge_extra_pixel_count( + opp, next_odm_pipe->stream->timing.pixel_encoding, + resource_is_pipe_type(next_odm_pipe, OTG_MASTER)) == 1) { + sd->h_active += 1; + sd->recout.width += 1; + sd->viewport.x -= dc_fixpt_ceil(dc_fixpt_mul_int(sd->ratios.horz, 1)); + sd->viewport_c.x -= dc_fixpt_ceil(dc_fixpt_mul_int(sd->ratios.horz, 1)); + sd->viewport_c.width += dc_fixpt_ceil(dc_fixpt_mul_int(sd->ratios.horz, 1)); + sd->viewport.width += dc_fixpt_ceil(dc_fixpt_mul_int(sd->ratios.horz, 1)); + } } + if (!next_odm_pipe->top_pipe) next_odm_pipe->stream_res.opp = pool->opps[next_odm_pipe->pipe_idx]; else @@ -2132,6 +2154,7 @@ bool dcn20_fast_validate_bw( ASSERT(0); } } + /* Actual dsc count per stream dsc validation*/ if (!dcn20_validate_dsc(dc, context)) { context->bw_ctx.dml.vba.ValidationStatus[context->bw_ctx.dml.vba.soc.num_states] = -- 2.43.0

7 months, 1 week

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[PATCH v7 3/3] drm: adv7511: Drop dsi single lane support

by Biju Das

As per [1] and [2], ADV7535/7533 supports only 2-, 3-, or 4-lane. Drop unsupported 1-lane. [1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7535… [2] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7533… Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Reported-by: Hien Huynh <hien.huynh.px(a)renesas.com> Cc: stable(a)vger.kernel.org Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> Reviewed-by: Adam Ford <aford173(a)gmail.com> Signed-off-by: Biju Das <biju.das.jz(a)bp.renesas.com> --- Changes in v7: - No change. Changes in v6: - Added Rb tag from Adam. Changes in v5: - No change. Changes in v4: - Added link to ADV7533 data sheet. - Collected tags Changes in v3: - Updated commit header and description - Updated fixes tag - Dropped single lane support Changes in v2: - Added the tag "Cc: stable(a)vger.kernel.org" in the sign-off area. - Dropped Archit Taneja invalid Mail address --- drivers/gpu/drm/bridge/adv7511/adv7533.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c index 5f195e91b3e6..122ad91e8a32 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c @@ -172,7 +172,7 @@ int adv7533_parse_dt(struct device_node *np, struct adv7511 *adv) of_property_read_u32(np, "adi,dsi-lanes", &num_lanes); - if (num_lanes < 1 || num_lanes > 4) + if (num_lanes < 2 || num_lanes > 4) return -EINVAL; adv->num_dsi_lanes = num_lanes; -- 2.43.0

7 months, 1 week

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[PATCH v7 2/3] dt-bindings: display: adi,adv7533: Drop single lane support

by Biju Das

As per [1] and [2], ADV7535/7533 supports only 2-, 3-, or 4-lane. Drop unsupported 1-lane from bindings. [1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7535… [2] https://www.analog.com/media/en/technical-documentation/data-sheets/ADV7533… Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Cc: stable(a)vger.kernel.org Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org> Reviewed-by: Geert Uytterhoeven <geert+renesas(a)glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> Signed-off-by: Biju Das <biju.das.jz(a)bp.renesas.com> --- v6->v7: * No change. v5->v6: * No change. v4->v5: * No change. v3->v4: * Added link to ADV7533 data sheet. * Collected tags. v3: * New patch. --- .../devicetree/bindings/display/bridge/adi,adv7533.yaml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml index df20a3c9c744..ec89115c74e4 100644 --- a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml +++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml @@ -90,7 +90,7 @@ properties: adi,dsi-lanes: description: Number of DSI data lanes connected to the DSI host. $ref: /schemas/types.yaml#/definitions/uint32 - enum: [ 1, 2, 3, 4 ] + enum: [ 2, 3, 4 ] "#sound-dai-cells": const: 0 -- 2.43.0

7 months, 1 week

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[PATCH v7 1/3] drm: adv7511: Fix use-after-free in adv7533_attach_dsi()

by Biju Das

The host_node pointer was assigned and freed in adv7533_parse_dt(), and later, adv7533_attach_dsi() uses the same. Fix this use-after-free issue by dropping of_node_put() in adv7533_parse_dt() and calling of_node_put() in error path of probe() and also in the remove(). Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Cc: stable(a)vger.kernel.org Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas(a)ideasonboard.com> Signed-off-by: Biju Das <biju.das.jz(a)bp.renesas.com> --- Changes in v7: - Dropped check for host_node as of_node_put() is a no-op when called with a NULL pointer. - Added Rb tag from Laurent. Changes in v6: - Fixed memory leak by adding goto stattement in error path of adv7511_init_regulators(). Changes in v5: - Updated commit description. - restored host_node in struct adv7511. - Dropped of_node_put() in adv7533_parse_dt() and calling of_node_put() in error path of probe() and also in the remove(). Changes in v4: - Updated commit description. - Dropped host_node from struct adv7511 and instead used a local pointer in probe(). Also freeing of host_node pointer after use is done in probe(). Changes in v3: - Replace __free construct with readable of_node_put(). Changes in v2: - Added the tag "Cc: stable(a)vger.kernel.org" in the sign-off area. - Dropped Archit Taneja invalid Mail address --- drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 10 ++++++++-- drivers/gpu/drm/bridge/adv7511/adv7533.c | 2 -- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index eb5919b38263..a13b3d8ab6ac 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -1241,8 +1241,10 @@ static int adv7511_probe(struct i2c_client *i2c) return ret; ret = adv7511_init_regulators(adv7511); - if (ret) - return dev_err_probe(dev, ret, "failed to init regulators\n"); + if (ret) { + dev_err_probe(dev, ret, "failed to init regulators\n"); + goto err_of_node_put; + } /* * The power down GPIO is optional. If present, toggle it from active to @@ -1363,6 +1365,8 @@ static int adv7511_probe(struct i2c_client *i2c) i2c_unregister_device(adv7511->i2c_edid); uninit_regulators: adv7511_uninit_regulators(adv7511); +err_of_node_put: + of_node_put(adv7511->host_node); return ret; } @@ -1371,6 +1375,8 @@ static void adv7511_remove(struct i2c_client *i2c) { struct adv7511 *adv7511 = i2c_get_clientdata(i2c); + of_node_put(adv7511->host_node); + adv7511_uninit_regulators(adv7511); drm_bridge_remove(&adv7511->bridge); diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c index 4481489aaf5e..5f195e91b3e6 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c @@ -181,8 +181,6 @@ int adv7533_parse_dt(struct device_node *np, struct adv7511 *adv) if (!adv->host_node) return -ENODEV; - of_node_put(adv->host_node); - adv->use_timing_gen = !of_property_read_bool(np, "adi,disable-timing-generator"); -- 2.43.0

7 months, 1 week

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[PATCH v6 1/3] drm: adv7511: Fix use-after-free in adv7533_attach_dsi()

by Biju Das

The host_node pointer was assigned and freed in adv7533_parse_dt(), and later, adv7533_attach_dsi() uses the same. Fix this use-after-free issue by dropping of_node_put() in adv7533_parse_dt() and calling of_node_put() in error path of probe() and also in the remove(). Fixes: 1e4d58cd7f88 ("drm/bridge: adv7533: Create a MIPI DSI device") Cc: stable(a)vger.kernel.org Signed-off-by: Biju Das <biju.das.jz(a)bp.renesas.com> --- Changes in v6: - Fixed memory leak by adding goto stattement in error path of adv7511_init_regulators(). Changes in v5: - Updated commit description. - restored host_node in struct adv7511. - Dropped of_node_put() in adv7533_parse_dt() and calling of_node_put() in error path of probe() and also in the remove(). Changes in v4: - Updated commit description. - Dropped host_node from struct adv7511 and instead used a local pointer in probe(). Also freeing of host_node pointer after use is done in probe(). Changes in v3: - Replace __free construct with readable of_node_put(). Changes in v2: - Added the tag "Cc: stable(a)vger.kernel.org" in the sign-off area. - Dropped Archit Taneja invalid Mail address --- drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 12 ++++++++++-- drivers/gpu/drm/bridge/adv7511/adv7533.c | 2 -- 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index eb5919b38263..f5525c12f0cd 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -1241,8 +1241,10 @@ static int adv7511_probe(struct i2c_client *i2c) return ret; ret = adv7511_init_regulators(adv7511); - if (ret) - return dev_err_probe(dev, ret, "failed to init regulators\n"); + if (ret) { + dev_err_probe(dev, ret, "failed to init regulators\n"); + goto err_of_node_put; + } /* * The power down GPIO is optional. If present, toggle it from active to @@ -1363,6 +1365,9 @@ static int adv7511_probe(struct i2c_client *i2c) i2c_unregister_device(adv7511->i2c_edid); uninit_regulators: adv7511_uninit_regulators(adv7511); +err_of_node_put: + if (adv7511->host_node) + of_node_put(adv7511->host_node); return ret; } @@ -1371,6 +1376,9 @@ static void adv7511_remove(struct i2c_client *i2c) { struct adv7511 *adv7511 = i2c_get_clientdata(i2c); + if (adv7511->host_node) + of_node_put(adv7511->host_node); + adv7511_uninit_regulators(adv7511); drm_bridge_remove(&adv7511->bridge); diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c index 4481489aaf5e..5f195e91b3e6 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7533.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c @@ -181,8 +181,6 @@ int adv7533_parse_dt(struct device_node *np, struct adv7511 *adv) if (!adv->host_node) return -ENODEV; - of_node_put(adv->host_node); - adv->use_timing_gen = !of_property_read_bool(np, "adi,disable-timing-generator"); -- 2.43.0

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Linux-stable-mirror November 2024