| Message ID | 20241017082348.3413727-2-ankit.k.nautiyal@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for 3 VDSC engines 12 slices | expand |
> -----Original Message----- > From: Nautiyal, Ankit K <ankit.k.nautiyal@intel.com> > Sent: Thursday, October 17, 2024 1:54 PM > To: intel-gfx@lists.freedesktop.org > Cc: intel-xe@lists.freedesktop.org; Kandpal, Suraj > <suraj.kandpal@intel.com> > Subject: [PATCH 01/10] drm/i915/display: Prepare for dsc 3 stream splitter > > At the moment dsc_split represents that dsc splitter is used or not. > With 3 DSC engines, the splitter can split into two streams or three streams. > Use enum for dsc_split to make space for case with three streams. > > Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> > --- > drivers/gpu/drm/i915/display/icl_dsi.c | 2 +- > drivers/gpu/drm/i915/display/intel_display.c | 2 +- > .../drm/i915/display/intel_display_types.h | 7 ++++- > drivers/gpu/drm/i915/display/intel_dp.c | 2 +- > drivers/gpu/drm/i915/display/intel_vdsc.c | 30 ++++++++++++++++--- > 5 files changed, 35 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c > b/drivers/gpu/drm/i915/display/icl_dsi.c > index 87a27d91d15d..5dc077c8200e 100644 > --- a/drivers/gpu/drm/i915/display/icl_dsi.c > +++ b/drivers/gpu/drm/i915/display/icl_dsi.c > @@ -1595,7 +1595,7 @@ static int gen11_dsi_dsc_compute_config(struct > intel_encoder *encoder, > > /* FIXME: split only when necessary */ > if (crtc_state->dsc.slice_count > 1) > - crtc_state->dsc.dsc_split = true; > + crtc_state->dsc.dsc_split = INTEL_DSC_SPLIT_2_STREAMS; > > /* FIXME: initialize from VBT */ > vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST; diff --git > a/drivers/gpu/drm/i915/display/intel_display.c > b/drivers/gpu/drm/i915/display/intel_display.c > index ef1436146325..9e2f0fd0558f 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -5741,7 +5741,7 @@ intel_pipe_config_compare(const struct > intel_crtc_state *current_config, > PIPE_CONF_CHECK_I(dsc.config.nsl_bpg_offset); > > PIPE_CONF_CHECK_BOOL(dsc.compression_enable); > - PIPE_CONF_CHECK_BOOL(dsc.dsc_split); > + PIPE_CONF_CHECK_I(dsc.dsc_split); > PIPE_CONF_CHECK_I(dsc.compressed_bpp_x16); > > PIPE_CONF_CHECK_BOOL(splitter.enable); > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h > b/drivers/gpu/drm/i915/display/intel_display_types.h > index 2bb1fa64da2f..8bd63da8516c 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_types.h > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h > @@ -909,6 +909,11 @@ struct intel_csc_matrix { > u16 postoff[3]; > }; > > +enum intel_dsc_split_state { > + INTEL_DSC_SPLIT_DISABLED, > + INTEL_DSC_SPLIT_2_STREAMS, > +}; I was just thinking what if we didn't use an enum and just used an int no_dsc_split_stream would make It a little cleaner similar to how we went ahead and did it case of ultrajoiner and big joiner no of pipe joined case and at prints we can print how many dsc streams are being used instead of yes and no. Regards, Suraj Kandpal > + > void intel_io_mmio_fw_write(void *ctx, i915_reg_t reg, u32 val); > > typedef void (*intel_io_reg_write)(void *ctx, i915_reg_t reg, u32 val); @@ - > 1235,7 +1240,7 @@ struct intel_crtc_state { > /* Display Stream compression state */ > struct { > bool compression_enable; > - bool dsc_split; > + enum intel_dsc_split_state dsc_split; > /* Compressed Bpp in U6.4 format (first 4 bits for fractional > part) */ > u16 compressed_bpp_x16; > u8 slice_count; > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c > b/drivers/gpu/drm/i915/display/intel_dp.c > index 6b27fabd61c3..04d22f0c1524 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -2403,7 +2403,7 @@ int intel_dp_dsc_compute_config(struct intel_dp > *intel_dp, > * then we need to use 2 VDSC instances. > */ > if (pipe_config->joiner_pipes || pipe_config->dsc.slice_count > 1) > - pipe_config->dsc.dsc_split = true; > + pipe_config->dsc.dsc_split = INTEL_DSC_SPLIT_2_STREAMS; > > ret = intel_dp_dsc_compute_params(connector, pipe_config); > if (ret < 0) { > diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c > b/drivers/gpu/drm/i915/display/intel_vdsc.c > index 40525f5c4c42..65c884b4f064 100644 > --- a/drivers/gpu/drm/i915/display/intel_vdsc.c > +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c > @@ -379,7 +379,14 @@ intel_dsc_power_domain(struct intel_crtc *crtc, > enum transcoder cpu_transcoder) > > static int intel_dsc_get_vdsc_per_pipe(const struct intel_crtc_state > *crtc_state) { > - return crtc_state->dsc.dsc_split ? 2 : 1; > + switch (crtc_state->dsc.dsc_split) { > + case INTEL_DSC_SPLIT_2_STREAMS: > + return 2; > + case INTEL_DSC_SPLIT_DISABLED: > + default: > + break; > + } > + return 1; > } > > int intel_dsc_get_num_vdsc_instances(const struct intel_crtc_state > *crtc_state) @@ -976,14 +983,29 @@ void intel_dsc_get_config(struct > intel_crtc_state *crtc_state) > if (!crtc_state->dsc.compression_enable) > goto out; > > - crtc_state->dsc.dsc_split = (dss_ctl2 & > RIGHT_BRANCH_VDSC_ENABLE) && > - (dss_ctl1 & JOINER_ENABLE); > + if ((dss_ctl1 & JOINER_ENABLE) && > + (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE)) > + crtc_state->dsc.dsc_split = INTEL_DSC_SPLIT_2_STREAMS; > + else > + crtc_state->dsc.dsc_split = INTEL_DSC_SPLIT_DISABLED; > > intel_dsc_get_pps_config(crtc_state); > out: > intel_display_power_put(dev_priv, power_domain, wakeref); } > > +static const char * const dsc_split_str[] = { > + [INTEL_DSC_SPLIT_DISABLED] = "DISABLED", > + [INTEL_DSC_SPLIT_2_STREAMS] = "2 STREAMS", }; > + > +static const char *dsc_split_name(enum intel_dsc_split_state dsc_split) > +{ > + if (dsc_split >= ARRAY_SIZE(dsc_split_str)) > + return "invalid"; > + return dsc_split_str[dsc_split]; > +} > + > static void intel_vdsc_dump_state(struct drm_printer *p, int indent, > const struct intel_crtc_state *crtc_state) { > @@ -991,7 +1013,7 @@ static void intel_vdsc_dump_state(struct > drm_printer *p, int indent, > "dsc-dss: compressed-bpp:" FXP_Q4_FMT ", slice- > count: %d, split: %s\n", > FXP_Q4_ARGS(crtc_state- > >dsc.compressed_bpp_x16), > crtc_state->dsc.slice_count, > - str_yes_no(crtc_state->dsc.dsc_split)); > + dsc_split_name(crtc_state->dsc.dsc_split)); > } > > void intel_vdsc_state_dump(struct drm_printer *p, int indent, > -- > 2.45.2
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c index 87a27d91d15d..5dc077c8200e 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.c +++ b/drivers/gpu/drm/i915/display/icl_dsi.c @@ -1595,7 +1595,7 @@ static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder, /* FIXME: split only when necessary */ if (crtc_state->dsc.slice_count > 1) - crtc_state->dsc.dsc_split = true; + crtc_state->dsc.dsc_split = INTEL_DSC_SPLIT_2_STREAMS; /* FIXME: initialize from VBT */ vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST; diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index ef1436146325..9e2f0fd0558f 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5741,7 +5741,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, PIPE_CONF_CHECK_I(dsc.config.nsl_bpg_offset); PIPE_CONF_CHECK_BOOL(dsc.compression_enable); - PIPE_CONF_CHECK_BOOL(dsc.dsc_split); + PIPE_CONF_CHECK_I(dsc.dsc_split); PIPE_CONF_CHECK_I(dsc.compressed_bpp_x16); PIPE_CONF_CHECK_BOOL(splitter.enable); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 2bb1fa64da2f..8bd63da8516c 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -909,6 +909,11 @@ struct intel_csc_matrix { u16 postoff[3]; }; +enum intel_dsc_split_state { + INTEL_DSC_SPLIT_DISABLED, + INTEL_DSC_SPLIT_2_STREAMS, +}; + void intel_io_mmio_fw_write(void *ctx, i915_reg_t reg, u32 val); typedef void (*intel_io_reg_write)(void *ctx, i915_reg_t reg, u32 val); @@ -1235,7 +1240,7 @@ struct intel_crtc_state { /* Display Stream compression state */ struct { bool compression_enable; - bool dsc_split; + enum intel_dsc_split_state dsc_split; /* Compressed Bpp in U6.4 format (first 4 bits for fractional part) */ u16 compressed_bpp_x16; u8 slice_count; diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 6b27fabd61c3..04d22f0c1524 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2403,7 +2403,7 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, * then we need to use 2 VDSC instances. */ if (pipe_config->joiner_pipes || pipe_config->dsc.slice_count > 1) - pipe_config->dsc.dsc_split = true; + pipe_config->dsc.dsc_split = INTEL_DSC_SPLIT_2_STREAMS; ret = intel_dp_dsc_compute_params(connector, pipe_config); if (ret < 0) { diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index 40525f5c4c42..65c884b4f064 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -379,7 +379,14 @@ intel_dsc_power_domain(struct intel_crtc *crtc, enum transcoder cpu_transcoder) static int intel_dsc_get_vdsc_per_pipe(const struct intel_crtc_state *crtc_state) { - return crtc_state->dsc.dsc_split ? 2 : 1; + switch (crtc_state->dsc.dsc_split) { + case INTEL_DSC_SPLIT_2_STREAMS: + return 2; + case INTEL_DSC_SPLIT_DISABLED: + default: + break; + } + return 1; } int intel_dsc_get_num_vdsc_instances(const struct intel_crtc_state *crtc_state) @@ -976,14 +983,29 @@ void intel_dsc_get_config(struct intel_crtc_state *crtc_state) if (!crtc_state->dsc.compression_enable) goto out; - crtc_state->dsc.dsc_split = (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE) && - (dss_ctl1 & JOINER_ENABLE); + if ((dss_ctl1 & JOINER_ENABLE) && + (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE)) + crtc_state->dsc.dsc_split = INTEL_DSC_SPLIT_2_STREAMS; + else + crtc_state->dsc.dsc_split = INTEL_DSC_SPLIT_DISABLED; intel_dsc_get_pps_config(crtc_state); out: intel_display_power_put(dev_priv, power_domain, wakeref); } +static const char * const dsc_split_str[] = { + [INTEL_DSC_SPLIT_DISABLED] = "DISABLED", + [INTEL_DSC_SPLIT_2_STREAMS] = "2 STREAMS", +}; + +static const char *dsc_split_name(enum intel_dsc_split_state dsc_split) +{ + if (dsc_split >= ARRAY_SIZE(dsc_split_str)) + return "invalid"; + return dsc_split_str[dsc_split]; +} + static void intel_vdsc_dump_state(struct drm_printer *p, int indent, const struct intel_crtc_state *crtc_state) { @@ -991,7 +1013,7 @@ static void intel_vdsc_dump_state(struct drm_printer *p, int indent, "dsc-dss: compressed-bpp:" FXP_Q4_FMT ", slice-count: %d, split: %s\n", FXP_Q4_ARGS(crtc_state->dsc.compressed_bpp_x16), crtc_state->dsc.slice_count, - str_yes_no(crtc_state->dsc.dsc_split)); + dsc_split_name(crtc_state->dsc.dsc_split)); } void intel_vdsc_state_dump(struct drm_printer *p, int indent,
At the moment dsc_split represents that dsc splitter is used or not. With 3 DSC engines, the splitter can split into two streams or three streams. Use enum for dsc_split to make space for case with three streams. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> --- drivers/gpu/drm/i915/display/icl_dsi.c | 2 +- drivers/gpu/drm/i915/display/intel_display.c | 2 +- .../drm/i915/display/intel_display_types.h | 7 ++++- drivers/gpu/drm/i915/display/intel_dp.c | 2 +- drivers/gpu/drm/i915/display/intel_vdsc.c | 30 ++++++++++++++++--- 5 files changed, 35 insertions(+), 8 deletions(-)