| Message ID | 20220318042109.1398265-1-suraj.kandpal@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [RFC,v2,1/3] drm/i915: Creating writeback pipeline to bypass drm_writeback framework | expand |
Hi All, Gentle Reminder Regards, Suraj Kandpal > drivers/gpu/drm/i915/Makefile | 1 + > drivers/gpu/drm/i915/display/intel_acpi.c | 1 + > drivers/gpu/drm/i915/display/intel_display.c | 89 +- > drivers/gpu/drm/i915/display/intel_display.h | 9 + > .../drm/i915/display/intel_display_types.h | 13 + > drivers/gpu/drm/i915/display/intel_dpll.c | 3 + > drivers/gpu/drm/i915/display/intel_opregion.c | 3 + > drivers/gpu/drm/i915/display/intel_wd.c | 978 ++++++++++++++++++ > drivers/gpu/drm/i915/display/intel_wd.h | 82 ++ > drivers/gpu/drm/i915/i915_drv.h | 2 + > drivers/gpu/drm/i915/i915_irq.c | 8 +- > drivers/gpu/drm/i915/i915_pci.c | 7 +- > drivers/gpu/drm/i915/i915_reg.h | 137 +++ > 13 files changed, 1330 insertions(+), 3 deletions(-) create mode 100644 > drivers/gpu/drm/i915/display/intel_wd.c > create mode 100644 drivers/gpu/drm/i915/display/intel_wd.h > > diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile > index 087bd9d1b397..5ee32513a945 100644 > --- a/drivers/gpu/drm/i915/Makefile > +++ b/drivers/gpu/drm/i915/Makefile > @@ -287,6 +287,7 @@ i915-y += \ > display/intel_vdsc.o \ > display/intel_vrr.o \ > display/intel_wb_connector.o\ > + display/intel_wd.o\ > display/vlv_dsi.o \ > display/vlv_dsi_pll.o > > diff --git a/drivers/gpu/drm/i915/display/intel_acpi.c > b/drivers/gpu/drm/i915/display/intel_acpi.c > index e78430001f07..ae08db164f73 100644 > --- a/drivers/gpu/drm/i915/display/intel_acpi.c > +++ b/drivers/gpu/drm/i915/display/intel_acpi.c > @@ -247,6 +247,7 @@ static u32 acpi_display_type(struct intel_connector > *connector) > case DRM_MODE_CONNECTOR_LVDS: > case DRM_MODE_CONNECTOR_eDP: > case DRM_MODE_CONNECTOR_DSI: > + case DRM_MODE_CONNECTOR_WRITEBACK: > display_type = ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL; > break; > case DRM_MODE_CONNECTOR_Unknown: > diff --git a/drivers/gpu/drm/i915/display/intel_display.c > b/drivers/gpu/drm/i915/display/intel_display.c > index eb49973621f0..6dedc7921f54 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -111,6 +111,7 @@ > #include "intel_sprite.h" > #include "intel_tc.h" > #include "intel_vga.h" > +#include "intel_wd.h" > #include "i9xx_plane.h" > #include "skl_scaler.h" > #include "skl_universal_plane.h" > @@ -1544,6 +1545,72 @@ static void > intel_encoders_update_complete(struct intel_atomic_state *state) > } > } > > +static void intel_queue_writeback_job(struct intel_atomic_state *state, > + struct intel_crtc *intel_crtc, struct intel_crtc_state > *crtc_state) { > + struct drm_connector_state *new_conn_state; > + struct drm_connector *connector; > + struct drm_i915_private *i915 = to_i915(intel_crtc->base.dev); > + struct intel_wd *intel_wd; > + struct intel_connector *intel_connector; > + struct intel_digital_connector_state *intel_conn_state; > + struct intel_encoder *encoder; > + int i; > + > + for_each_intel_encoder_with_wd(&i915->drm, encoder) { > + intel_wd = enc_to_intel_wd(encoder); > + > + if (intel_wd->wd_crtc != intel_crtc) > + return; > + > + } > + > + for_each_new_connector_in_state(&state->base, connector, > new_conn_state, > + i) { > + intel_conn_state = > to_intel_digital_connector_state(new_conn_state); > + if (!intel_conn_state->job) > + continue; > + intel_connector = to_intel_connector(connector); > + intel_writeback_queue_job(&intel_connector->wb_conn, > new_conn_state); > + drm_dbg_kms(&i915->drm, "queueing writeback job\n"); > + } > +} > + > +static void intel_find_writeback_connector(struct intel_atomic_state > *state, > + struct intel_crtc *intel_crtc, struct intel_crtc_state > *crtc_state) { > + struct drm_connector_state *new_conn_state; > + struct drm_connector *connector; > + struct drm_i915_private *i915 = to_i915(intel_crtc->base.dev); > + struct intel_wd *intel_wd; > + struct intel_encoder *encoder; > + int i; > + > + for_each_intel_encoder_with_wd(&i915->drm, encoder) { > + intel_wd = enc_to_intel_wd(encoder); > + > + if (intel_wd->wd_crtc != intel_crtc) > + return; > + > + } > + > + for_each_new_connector_in_state(&state->base, connector, > new_conn_state, > + i) { > + struct intel_connector *intel_connector; > + > + intel_connector = to_intel_connector(connector); > + drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s]: status: > %s\n", > + connector->base.id, connector->name, > + > drm_get_connector_status_name(connector->status)); > + encoder = > intel_connector_primary_encoder(intel_connector); > + if (encoder->type == INTEL_OUTPUT_WD) { > + drm_dbg_kms(&i915->drm, "encoder > intel_output_wd found\n"); > + intel_wd_enable_capture(encoder, crtc_state, > new_conn_state); > + } > + } > + > +} > + > static void intel_encoders_pre_pll_enable(struct intel_atomic_state *state, > struct intel_crtc *crtc) > { > @@ -1944,7 +2011,8 @@ static void hsw_crtc_enable(struct > intel_atomic_state *state, > bdw_set_pipemisc(new_crtc_state); > > if (!intel_crtc_is_bigjoiner_slave(new_crtc_state) && > - !transcoder_is_dsi(cpu_transcoder)) > + !transcoder_is_dsi(cpu_transcoder) && > + !transcoder_is_wd(cpu_transcoder)) > hsw_configure_cpu_transcoder(new_crtc_state); > > crtc->active = true; > @@ -2632,6 +2700,9 @@ static void intel_connector_verify_state(struct > intel_crtc_state *crtc_state, > if (connector->get_hw_state(connector)) { > struct intel_encoder *encoder = > intel_attached_encoder(connector); > > + if (conn_state->connector->connector_type == > DRM_MODE_CONNECTOR_WRITEBACK) > + return; > + > I915_STATE_WARN(!crtc_state, > "connector enabled without attached crtc\n"); > > @@ -5233,6 +5304,7 @@ static const char * const output_type_str[] = { > OUTPUT_TYPE(DSI), > OUTPUT_TYPE(DDI), > OUTPUT_TYPE(DP_MST), > + OUTPUT_TYPE(WD), > }; > > #undef OUTPUT_TYPE > @@ -8577,6 +8649,12 @@ static void intel_atomic_commit_tail(struct > intel_atomic_state *state) > } > } > > + if (DISPLAY_VER(dev_priv) >= 12) { > + for_each_new_intel_crtc_in_state(state, crtc, > new_crtc_state, i) { > + intel_wd_set_vblank_event(crtc, new_crtc_state); > + } > + } > + > intel_encoders_update_prepare(state); > > intel_dbuf_pre_plane_update(state); > @@ -8662,6 +8740,14 @@ static void intel_atomic_commit_tail(struct > intel_atomic_state *state) > > intel_sagv_post_plane_update(state); > > + if (DISPLAY_VER(dev_priv) >= 12) { > + intel_wd_prepare_out_fence(dev, &state->base); > + for_each_new_intel_crtc_in_state(state, crtc, > new_crtc_state, i) { > + intel_queue_writeback_job(state, crtc, > new_crtc_state); > + intel_find_writeback_connector(state, crtc, > new_crtc_state); > + } > + } > + > drm_atomic_helper_commit_hw_done(&state->base); > > if (state->modeset) { > @@ -8966,6 +9052,7 @@ static void intel_setup_outputs(struct > drm_i915_private *dev_priv) > intel_ddi_init(dev_priv, PORT_TC1); > intel_ddi_init(dev_priv, PORT_TC2); > } else if (DISPLAY_VER(dev_priv) >= 12) { > + intel_wd_init(dev_priv, TRANSCODER_WD_0); > intel_ddi_init(dev_priv, PORT_A); > intel_ddi_init(dev_priv, PORT_B); > intel_ddi_init(dev_priv, PORT_TC1); > diff --git a/drivers/gpu/drm/i915/display/intel_display.h > b/drivers/gpu/drm/i915/display/intel_display.h > index 8c93a5de8e07..27237d36a888 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.h > +++ b/drivers/gpu/drm/i915/display/intel_display.h > @@ -156,6 +156,11 @@ static inline bool transcoder_is_dsi(enum transcoder > transcoder) > return transcoder == TRANSCODER_DSI_A || transcoder == > TRANSCODER_DSI_C; } > > +static inline bool transcoder_is_wd(enum transcoder transcoder) { > + return transcoder == TRANSCODER_WD_0 || transcoder == > TRANSCODER_WD_1; > +} > + > /* > * Global legacy plane identifier. Valid only for primary/sprite > * planes on pre-g4x, and only for primary planes on g4x-bdw. > @@ -467,6 +472,10 @@ enum hpd_pin { > for_each_intel_encoder((dev), (intel_encoder)) \ > for_each_if(intel_encoder_can_psr(intel_encoder)) > > +#define for_each_intel_encoder_with_wd(dev, intel_encoder) \ > + for_each_intel_encoder(dev, intel_encoder) \ > + for_each_if(intel_encoder_is_wd(intel_encoder)) > + > #define for_each_intel_connector_iter(intel_connector, iter) \ > while ((intel_connector = > to_intel_connector(drm_connector_list_iter_next(iter)))) > > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h > b/drivers/gpu/drm/i915/display/intel_display_types.h > index dcb4ad43cf88..8522c348a73d 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_types.h > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h > @@ -1293,6 +1293,11 @@ struct intel_crtc { > bool cpu_fifo_underrun_disabled; > bool pch_fifo_underrun_disabled; > > + struct { > + struct drm_pending_vblank_event *e; > + atomic_t work_busy; > + wait_queue_head_t wd_wait; > + } wd; > /* per-pipe watermark state */ > struct { > /* watermarks currently being used */ @@ -1420,6 +1425,7 > @@ struct cxsr_latency { #define to_intel_crtc(x) container_of(x, struct > intel_crtc, base) #define to_intel_crtc_state(x) container_of(x, struct > intel_crtc_state, uapi) #define to_intel_connector(x) container_of(x, struct > intel_connector, base) > +#define to_intel_wb_connector(x) container_of(x, struct > +intel_wb_connector, base) > #define to_intel_encoder(x) container_of(x, struct intel_encoder, base) > #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, > base) #define to_intel_plane(x) container_of(x, struct intel_plane, base) > @@ -1851,6 +1857,13 @@ static inline bool intel_encoder_is_dp(struct > intel_encoder *encoder) > } > } > > +static inline bool intel_encoder_is_wd(struct intel_encoder *encoder) { > + if (encoder->type == INTEL_OUTPUT_WD) > + return true; > + return false; > +} > + > static inline struct intel_lspcon * > enc_to_intel_lspcon(struct intel_encoder *encoder) { diff --git > a/drivers/gpu/drm/i915/display/intel_dpll.c > b/drivers/gpu/drm/i915/display/intel_dpll.c > index 95b9d327ed4d..dfea17f5f99d 100644 > --- a/drivers/gpu/drm/i915/display/intel_dpll.c > +++ b/drivers/gpu/drm/i915/display/intel_dpll.c > @@ -939,6 +939,9 @@ static int hsw_crtc_compute_clock(struct > intel_crtc_state *crtc_state) > if (IS_DG2(dev_priv)) > return intel_mpllb_calc_state(crtc_state, encoder); > > + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_WD)) > + return 0; > + > if (DISPLAY_VER(dev_priv) < 11 && > intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI)) > return 0; > diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c > b/drivers/gpu/drm/i915/display/intel_opregion.c > index f31e8c3f8ce0..b7a0ac9bad05 100644 > --- a/drivers/gpu/drm/i915/display/intel_opregion.c > +++ b/drivers/gpu/drm/i915/display/intel_opregion.c > @@ -370,6 +370,9 @@ int intel_opregion_notify_encoder(struct > intel_encoder *intel_encoder, > if (ret) > return ret; > > + if (intel_encoder->type == INTEL_OUTPUT_WD) > + return 0; > + > if (intel_encoder->type == INTEL_OUTPUT_DSI) > port = 0; > else > diff --git a/drivers/gpu/drm/i915/display/intel_wd.c > b/drivers/gpu/drm/i915/display/intel_wd.c > new file mode 100644 > index 000000000000..a6c9350c3986 > --- /dev/null > +++ b/drivers/gpu/drm/i915/display/intel_wd.c > @@ -0,0 +1,978 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright © 2021 Intel Corporation > + * > + * Permission is hereby granted, free of charge, to any person > +obtaining a > + * copy of this software and associated documentation files (the > +"Software"), > + * to deal in the Software without restriction, including without > +limitation > + * the rights to use, copy, modify, merge, publish, distribute, > +sublicense, > + * and/or sell copies of the Software, and to permit persons to whom > +the > + * Software is furnished to do so, subject to the following conditions: > + * > + * The above copyright notice and this permission notice (including the > +next > + * paragraph) shall be included in all copies or substantial portions > +of the > + * Software. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > +EXPRESS OR > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > +MERCHANTABILITY, > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO > EVENT > +SHALL > + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, > DAMAGES OR > +OTHER > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, > +ARISING > + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR > OTHER > +DEALINGS > + * IN THE SOFTWARE. > + * > + * Authors: > + * Suraj Kandpal <suraj.kandpal@intel.com> > + * Arun Murthy <arun.r.murthy@intel.com> > + * > + */ > + > +#include <drm/drm_atomic_helper.h> > +#include <drm/drm_fourcc.h> > + > +#include "intel_atomic.h" > +#include "intel_connector.h" > +#include "intel_wd.h" > +#include "intel_fb_pin.h" > +#include "intel_de.h" > +#include "intel_wb_connector.h" > + > +enum { > + WD_CAPTURE_4_PIX, > + WD_CAPTURE_2_PIX, > +} wd_capture_format; > + > +static struct intel_writeback_job > +*intel_get_writeback_job_from_queue(struct intel_wd *intel_wd) { > + struct intel_writeback_job *job; > + struct drm_i915_private *i915 = to_i915(intel_wd->base.base.dev); > + struct intel_writeback_connector *wb_conn = > + &intel_wd->attached_connector->wb_conn; > + unsigned long flags; > + > + spin_lock_irqsave(&wb_conn->job_lock, flags); > + job = list_first_entry_or_null(&wb_conn->job_queue, > + struct intel_writeback_job, > + list_entry); > + spin_unlock_irqrestore(&wb_conn->job_lock, flags); > + if (job == NULL) { > + drm_dbg_kms(&i915->drm, "job queue is empty\n"); > + return NULL; > + } > + > + return job; > +} > + > +/*Check with Spec*/ > +static const u32 wb_fmts[] = { > + DRM_FORMAT_YUV444, > + DRM_FORMAT_XYUV8888, > + DRM_FORMAT_XBGR8888, > + DRM_FORMAT_XRGB8888, > + DRM_FORMAT_Y410, > + DRM_FORMAT_YUV422, > + DRM_FORMAT_XBGR2101010, > + DRM_FORMAT_RGB565, > + > +}; > + > +static int intel_wd_get_format(int pixel_format) { > + int wd_format = -EINVAL; > + > + switch (pixel_format) { > + case DRM_FORMAT_XBGR8888: > + case DRM_FORMAT_XRGB8888: > + case DRM_FORMAT_XBGR2101010: > + case DRM_FORMAT_XYUV8888: > + case DRM_FORMAT_YUV444: > + wd_format = WD_CAPTURE_4_PIX; > + break; > + case DRM_FORMAT_YUV422: > + case DRM_FORMAT_RGB565: > + wd_format = WD_CAPTURE_2_PIX; > + break; > + default: > + DRM_ERROR("unsupported pixel format %x!\n", > + pixel_format); > + } > + > + return wd_format; > +} > + > +static int intel_wd_verify_pix_format(int format) { > + const struct drm_format_info *info = drm_format_info(format); > + int pix_format = info->format; > + int i = 0; > + > + for (i = 0; i < ARRAY_SIZE(wb_fmts); i++) > + if (pix_format == wb_fmts[i]) > + return 0; > + > + return 1; > +} > + > +static u32 intel_wd_get_stride(const struct intel_crtc_state *crtc_state, > + int format) > +{ > + const struct drm_format_info *info = drm_format_info(format); > + int wd_format; > + int hactive, pixel_size; > + > + wd_format = intel_wd_get_format(info->format); > + > + switch (wd_format) { > + case WD_CAPTURE_4_PIX: > + pixel_size = 4; > + break; > + case WD_CAPTURE_2_PIX: > + pixel_size = 2; > + break; > + default: > + pixel_size = 1; > + break; > + } > + > + hactive = crtc_state->hw.adjusted_mode.crtc_hdisplay; > + > + return DIV_ROUND_UP(hactive * pixel_size, 64); } > + > +static int intel_wd_pin_fb(struct intel_wd *intel_wd, > + struct drm_framebuffer *fb) > +{ > + const struct i915_ggtt_view view = { > + .type = I915_GGTT_VIEW_NORMAL, > + }; > + struct i915_vma *vma; > + > + vma = intel_pin_and_fence_fb_obj(fb, false, &view, false, > + &intel_wd->flags); > + > + if (IS_ERR(vma)) > + return PTR_ERR(vma); > + > + intel_wd->vma = vma; > + return 0; > +} > + > +static void intel_configure_slicing_strategy(struct drm_i915_private *i915, > + struct intel_wd *intel_wd, u32 *tmp) > +{ > + *tmp &= ~WD_STRAT_MASK; > + if (intel_wd->slicing_strategy == 1) > + *tmp |= WD_SLICING_STRAT_1_1; > + else if (intel_wd->slicing_strategy == 2) > + *tmp |= WD_SLICING_STRAT_2_1; > + else if (intel_wd->slicing_strategy == 3) > + *tmp |= WD_SLICING_STRAT_4_1; > + else if (intel_wd->slicing_strategy == 4) > + *tmp |= WD_SLICING_STRAT_8_1; > + > + intel_de_write(i915, WD_STREAMCAP_CTL(intel_wd->trans), > + *tmp); > + > +} > + > +static enum drm_mode_status > +intel_wd_mode_valid(struct drm_connector *connector, > + struct drm_display_mode *mode) > +{ > + return MODE_OK; > +} > + > +static int intel_wd_get_modes(struct drm_connector *connector) { > + return 0; > +} > + > +static void intel_wd_get_config(struct intel_encoder *encoder, > + struct intel_crtc_state *pipe_config) { > + struct drm_i915_private *i915 = to_i915(encoder->base.dev); > + struct intel_crtc *intel_crtc = > + to_intel_crtc(pipe_config->uapi.crtc); > + > + drm_dbg_kms(&i915->drm, "\n"); > + if (intel_crtc) { > + memcpy(pipe_config, intel_crtc->config, > + sizeof(*pipe_config)); > + pipe_config->output_types |= BIT(INTEL_OUTPUT_WD); > + drm_dbg_kms(&i915->drm, "crtc found\n"); > + } > + > +} > + > +static int intel_wd_compute_config(struct intel_encoder *encoder, > + struct intel_crtc_state *pipe_config, > + struct drm_connector_state *conn_state) { > + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); > + struct drm_i915_private *i915 = to_i915(encoder->base.dev); > + struct intel_digital_connector_state *intel_conn_state = > + to_intel_digital_connector_state(conn_state); > + struct intel_writeback_job *job; > + > + drm_dbg_kms(&i915->drm, "\n"); > + job = intel_get_writeback_job_from_queue(intel_wd); > + if (job || intel_conn_state->job) { > + intel_wd->wd_crtc = to_intel_crtc(pipe_config->uapi.crtc); > + return 0; > + } > + drm_dbg_kms(&i915->drm, "No writebackjob in queue\n"); > + > + return 0; > +} > + > +static void intel_wd_get_power_domains(struct intel_encoder *encoder, > + struct intel_crtc_state *crtc_state) { > + struct drm_i915_private *i915 = to_i915(encoder->base.dev); > + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); > + intel_wakeref_t wakeref; > + > + wakeref = intel_display_power_get(i915, > + encoder->power_domain); > + > + intel_wd->io_wakeref[0] = wakeref; > + drm_dbg_kms(&i915->drm, "\n"); > +} > + > +static bool intel_wd_get_hw_state(struct intel_encoder *encoder, > + enum pipe *pipe) > +{ > + bool ret = false; > + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); > + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); > + struct intel_crtc *wd_crtc = intel_wd->wd_crtc; > + intel_wakeref_t wakeref; > + u32 tmp; > + > + if (wd_crtc) > + return false; > + > + wakeref = intel_display_power_get_if_enabled(dev_priv, > + encoder->power_domain); > + drm_dbg_kms(encoder->base.dev, "power enabled : %s\n", > + !wakeref ? "false":"true"); > + > + if (!wakeref) > + return false; > + > + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); > + ret = tmp & WD_TRANS_ACTIVE; > + drm_dbg_kms(encoder->base.dev, "trancoder enabled: %s\n", > + ret ? "true":"false"); > + if (ret) { > + *pipe = wd_crtc->pipe; > + drm_dbg_kms(encoder->base.dev, "pipe selected is %d\n", > + wd_crtc->pipe); > + } > + return true; > +} > + > +static int intel_wd_encoder_atomic_check(struct drm_encoder *encoder, > + struct drm_crtc_state *crtc_st, > + struct drm_connector_state *conn_st) { > + /* Check for the format and buffers and property validity */ > + struct drm_framebuffer *fb; > + struct intel_digital_connector_state *intel_conn_state = > + to_intel_digital_connector_state(conn_st); > + struct intel_writeback_job *job = intel_conn_state->job; > + struct drm_i915_private *i915 = to_i915(encoder->dev); > + const struct drm_display_mode *mode = &crtc_st->mode; > + int ret; > + > + drm_dbg_kms(&i915->drm, "\n"); > + > + if (!job) { > + drm_dbg_kms(&i915->drm, "No writeback job created > returning\n"); > + return -EINVAL; > + } > + > + fb = job->fb; > + > + if (!fb) { > + drm_dbg_kms(&i915->drm, "Invalid framebuffer\n"); > + return -EINVAL; > + } > + > + if (fb->width != mode->hdisplay || fb->height != mode->vdisplay) { > + drm_dbg_kms(&i915->drm, "Invalid framebuffer size > %ux%u\n", > + fb->width, fb->height); > + return -EINVAL; > + } > + > + ret = intel_wd_verify_pix_format(fb->format->format); > + > + if (ret) { > + drm_dbg_kms(&i915->drm, "Unsupported framebuffer > format %08x\n", > + fb->format->format); > + return -EINVAL; > + } > + > + return 0; > +} > + > + > +static const struct drm_encoder_helper_funcs wd_encoder_helper_funcs > = { > + .atomic_check = intel_wd_encoder_atomic_check, }; > + > +static void intel_wd_connector_destroy(struct drm_connector *connector) > +{ > + drm_dbg_kms(connector->dev, "\n"); > + drm_connector_cleanup(connector); > + kfree(connector); > +} > + > +static enum drm_connector_status > +intel_wb_connector_detect(struct drm_connector *connector, bool force) > +{ > + drm_dbg_kms(connector->dev, "Writeback connector > connected\n"); > + return connector_status_connected; > +} > + > +static int intel_atomic_set_writeback_fb_for_connector( > + struct drm_connector_state *conn_state, > + struct drm_framebuffer *fb) > +{ > + int ret; > + struct drm_connector *conn = conn_state->connector; > + > + ret = intel_writeback_set_fb(conn_state, fb); > + if (ret < 0) > + return ret; > + > + if (fb) > + drm_dbg_atomic(conn->dev, > + "Set [FB:%d] for connector state %p\n", > + fb->base.id, conn_state); > + else > + drm_dbg_atomic(conn->dev, > + "Set [NOFB] for connector state %p\n", > + conn_state); > + > + return 0; > +} > + > +static int set_out_fence_for_connector(struct drm_atomic_state *state, > + struct drm_connector *connector, > + s32 __user *fence_ptr) > +{ > + unsigned int index = drm_connector_index(connector); > + > + if (!fence_ptr) > + return 0; > + > + if (put_user(-1, fence_ptr)) > + return -EFAULT; > + > + state->connectors[index].out_fence_ptr = fence_ptr; > + > + return 0; > +} > + > +static struct drm_mode_object *__intel_object_find(struct drm_device > *dev, > + uint32_t id, uint32_t type) { > + struct drm_mode_object *obj = NULL; > + > + mutex_lock(&dev->mode_config.idr_mutex); > + obj = idr_find(&dev->mode_config.object_idr, id); > + if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) > + obj = NULL; > + if (obj && obj->id != id) > + obj = NULL; > + if (obj && obj->free_cb) { > + if (!kref_get_unless_zero(&obj->refcount)) > + obj = NULL; > + } > + mutex_unlock(&dev->mode_config.idr_mutex); > + > + return obj; > +} > + > +static struct drm_framebuffer *intel_wb_framebuffer_lookup(struct > drm_device *dev, > + uint32_t id) > +{ > + struct drm_mode_object *obj; > + struct drm_framebuffer *fb = NULL; > + > + obj = __intel_object_find(dev, id, DRM_MODE_OBJECT_FB); > + if (obj) > + fb = obj_to_fb(obj); > + return fb; > +} > + > +static s32 *intel_get_out_fence_for_connector(struct drm_atomic_state > *state, > + struct drm_connector > *connector) { > + unsigned int index = drm_connector_index(connector); > + s32 __user *fence_ptr; > + > + fence_ptr = state->connectors[index].out_fence_ptr; > + state->connectors[index].out_fence_ptr = NULL; > + > + return fence_ptr; > +} > + > +static int intel_setup_out_fence(struct intel_out_fence_state > *fence_state, > + struct dma_fence *fence) > +{ > + > + fence_state->fd = get_unused_fd_flags(O_CLOEXEC); > + if (fence_state->fd < 0) > + return fence_state->fd; > + > + if (put_user(fence_state->fd, fence_state->out_fence_ptr)) > + return -EFAULT; > + > + fence_state->sync_file = sync_file_create(fence); > + if (!fence_state->sync_file) > + return -ENOMEM; > + > + return 0; > +} > + > +int intel_wd_prepare_out_fence(struct drm_device *dev, > + struct drm_atomic_state *state) > +{ > + struct drm_connector *conn; > + struct drm_connector_state *conn_state; > + int i, ret; > + > + drm_dbg_kms(dev, "\n"); > + > + for_each_new_connector_in_state(state, conn, conn_state, i) { > + struct intel_writeback_connector *wb_conn; > + struct intel_connector *intel_conn = > + to_intel_connector(conn); > + struct dma_fence *fence; > + struct intel_wd *intel_wd; > + struct intel_digital_connector_state *intel_conn_state = > + to_intel_digital_connector_state(conn_state); > + s32 __user *fence_ptr; > + > + if (conn->connector_type != > DRM_MODE_CONNECTOR_WRITEBACK) > + continue; > + > + if (!intel_conn_state->job) > + continue; > + > + intel_wd = enc_to_intel_wd(intel_conn->encoder); > + fence_ptr = intel_get_out_fence_for_connector(state, > conn); > + if (!fence_ptr) > + continue; > + > + intel_wd->fence_state->out_fence_ptr = fence_ptr; > + > + wb_conn = &intel_conn->wb_conn; > + fence = intel_writeback_get_out_fence(wb_conn); > + if (!fence) > + return -ENOMEM; > + > + ret = intel_setup_out_fence(intel_wd->fence_state, fence); > + if (ret) { > + dma_fence_put(fence); > + return ret; > + } > + > + intel_conn_state->job->out_fence = fence; > + } > + > + return 0; > +} > + > +void intel_wd_complete_signaling(struct intel_wd *intel_wd) { > + struct intel_out_fence_state *fence_state; > + > + fence_state = intel_wd->fence_state; > + fd_install(fence_state->fd, > + fence_state->sync_file->file); > + > +} > + > +static int intel_set_writeback_property(struct drm_connector *connector, > + struct drm_connector_state *state, struct drm_property *property, > + uint64_t val) > +{ > + struct drm_device *dev = connector->dev; > + struct drm_i915_private *i915 = to_i915(dev); > + > + if (property == i915->wb_fb_id_property) { > + struct drm_framebuffer *fb; > + int ret; > + > + fb = intel_wb_framebuffer_lookup(dev, val); > + ret = intel_atomic_set_writeback_fb_for_connector(state, > fb); > + if (fb) > + drm_framebuffer_put(fb); > + return ret; > + } else if (property == i915->wb_out_fence_ptr_property) { > + s32 __user *fence_ptr = u64_to_user_ptr(val); > + > + return set_out_fence_for_connector(state->state, > connector, > + fence_ptr); > + } else { > + drm_dbg_atomic(connector->dev, > + "[CONNECTOR:%d:%s] unknown property > [PROP:%d:%s]]\n", > + connector->base.id, connector->name, > + property->base.id, property->name); > + return -EINVAL; > + } > + > + return 0; > + > +} > + > +static int intel_get_writeback_property(struct drm_connector *connector, > + const struct drm_connector_state *state, struct drm_property > *property, > + uint64_t *val) > +{ > + struct drm_device *dev = connector->dev; > + struct drm_i915_private *i915 = to_i915(dev); > + > + if (property == i915->wb_fb_id_property) > + *val = 0; > + else if (property == i915->wb_out_fence_ptr_property) > + *val = 0; > + else { > + drm_dbg_atomic(&i915->drm, > + "Unknown property [PROP:%d:%s]\n", > + property->base.id, property->name); > + return -EINVAL; > + } > + > + return 0; > +} > + > +static const struct drm_connector_funcs wd_connector_funcs = { > + .detect = intel_wb_connector_detect, > + .reset = drm_atomic_helper_connector_reset, > + .destroy = intel_wd_connector_destroy, > + .fill_modes = drm_helper_probe_single_connector_modes, > + .atomic_destroy_state = > drm_atomic_helper_connector_destroy_state, > + .atomic_set_property = intel_set_writeback_property, > + .atomic_get_property = intel_get_writeback_property, > + .atomic_duplicate_state = intel_digital_connector_duplicate_state, > +}; > + > +static const struct drm_connector_helper_funcs > wd_connector_helper_funcs = { > + .get_modes = intel_wd_get_modes, > + .mode_valid = intel_wd_mode_valid, > +}; > + > +static bool intel_fastset_dis(struct intel_encoder *encoder, > + struct intel_crtc_state *pipe_config) { > + pipe_config->uapi.mode_changed = true; > + drm_dbg_kms(encoder->base.dev, "\n"); > + return false; > +} > + > +void intel_wd_init(struct drm_i915_private *i915, enum transcoder > +trans) { > + struct intel_wd *intel_wd; > + struct intel_encoder *encoder; > + struct intel_out_fence_state *fence_state; > + struct intel_connector *intel_connector; > + struct intel_writeback_connector *wb_conn; > + int n_formats = ARRAY_SIZE(wb_fmts); > + int err; > + > + drm_dbg_kms(&i915->drm, "\n"); > + intel_wd = kzalloc(sizeof(*intel_wd), GFP_KERNEL); > + if (!intel_wd) > + return; > + > + intel_connector = intel_connector_alloc(); > + if (!intel_connector) { > + kfree(intel_wd); > + return; > + } > + > + fence_state = kzalloc(sizeof(*fence_state), GFP_KERNEL); > + if (!intel_wd) { > + kfree(intel_wd); > + kfree(intel_connector); > + return; > + } > + > + wb_conn = &intel_connector->wb_conn; > + wb_conn->base = &intel_connector->base; > + wb_conn->encoder = &intel_wd->base.base; > + > + encoder = &intel_wd->base; > + intel_wd->attached_connector = intel_connector; > + intel_wd->fence_state = fence_state; > + intel_wd->trans = trans; > + intel_wd->triggered_cap_mode = 1; > + intel_wd->frame_num = 1; > + intel_wd->slicing_strategy = 1; > + encoder->get_config = intel_wd_get_config; > + encoder->compute_config = intel_wd_compute_config; > + encoder->get_hw_state = intel_wd_get_hw_state; > + encoder->type = INTEL_OUTPUT_WD; > + encoder->cloneable = 0; > + encoder->pipe_mask = ~0; > + encoder->power_domain = POWER_DOMAIN_TRANSCODER_B; > + encoder->get_power_domains = intel_wd_get_power_domains; > + encoder->initial_fastset_check = intel_fastset_dis; > + intel_connector->get_hw_state = > + intel_connector_get_hw_state; > + > + drm_dbg_kms(&i915->drm, "\n"); > + err = intel_writeback_connector_init(&i915->drm, wb_conn, > + &wd_connector_funcs, > + &wd_encoder_helper_funcs, > + wb_fmts, n_formats); > + > + if (err != 0) { > + drm_dbg_kms(&i915->drm, > + "intel_writeback_connector_init: Failed: %d\n", > + err); > + goto cleanup; > + } > + > + drm_connector_helper_add(wb_conn->base, > &wd_connector_helper_funcs); > + intel_connector_attach_encoder(intel_connector, encoder); > + wb_conn->base->status = connector_status_connected; > + return; > + > +cleanup: > + kfree(intel_wd); > + intel_connector_free(intel_connector); > +} > + > +static void intel_wd_writeback_complete(struct intel_wd *intel_wd, > + struct intel_writeback_job *job, int status) { > + struct intel_writeback_connector *wb_conn = > + &intel_wd->attached_connector->wb_conn; > + intel_writeback_signal_completion(wb_conn, status); > + intel_wd_complete_signaling(intel_wd); > +} > + > +static int intel_wd_setup_transcoder(struct intel_wd *intel_wd, > + struct intel_crtc_state *pipe_config, > + struct intel_writeback_job *job) > +{ > + struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc); > + enum pipe pipe = intel_crtc->pipe; > + struct drm_framebuffer *fb; > + struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); > + struct drm_gem_object *wd_fb_obj; > + int ret; > + u32 stride, tmp; > + u16 hactive, vactive; > + > + fb = job->fb; > + wd_fb_obj = fb->obj[0]; > + if (!wd_fb_obj) { > + drm_dbg_kms(&dev_priv->drm, "No framebuffer gem > object created\n"); > + return -1; > + } > + ret = intel_wd_pin_fb(intel_wd, fb); > + drm_WARN_ON(&dev_priv->drm, ret != 0); > + > + /*Write stride and surface registers in that particular order*/ > + stride = intel_wd_get_stride(pipe_config, fb->format->format); > + > + tmp = intel_de_read(dev_priv, WD_STRIDE(intel_wd->trans)); > + tmp &= ~WD_STRIDE_MASK; > + tmp |= (stride << WD_STRIDE_SHIFT); > + > + intel_de_write(dev_priv, WD_STRIDE(intel_wd->trans), tmp); > + > + tmp = intel_de_read(dev_priv, WD_SURF(intel_wd->trans)); > + drm_dbg_kms(&dev_priv->drm, "%d is the surface address\n", > tmp); > + > + intel_de_write(dev_priv, WD_SURF(intel_wd->trans), > + i915_ggtt_offset(intel_wd->vma)); > + > + tmp = intel_de_read_fw(dev_priv, WD_IIR(intel_wd->trans)); > + intel_de_write_fw(dev_priv, WD_IIR(intel_wd->trans), tmp); > + > + tmp = > ~(WD_GTT_FAULT_INT|WD_WRITE_COMPLETE_INT|WD_FRAME_COMPLET > E_INT| > + > WD_VBLANK_INT|WD_OVERRUN_INT|WD_CAPTURING_INT); > + intel_de_write_fw(dev_priv, WD_IMR(intel_wd->trans), tmp); > + > + if (intel_wd->stream_cap) { > + tmp = intel_de_read(dev_priv, > + WD_STREAMCAP_CTL(intel_wd->trans)); > + tmp |= WD_STREAM_CAP_MODE_EN; > + intel_configure_slicing_strategy(dev_priv, intel_wd, &tmp); > + } > + > + hactive = pipe_config->uapi.mode.hdisplay; > + vactive = pipe_config->uapi.mode.vdisplay; > + > + drm_dbg_kms(&dev_priv->drm, "hactive : %d, vactive: %d\n", > hactive, > +vactive); > + > + tmp = intel_de_read(dev_priv, HTOTAL(intel_wd->trans)); > + drm_dbg_kms(&dev_priv->drm, "hactive_reg : %d\n", tmp); > + tmp = intel_de_read(dev_priv, VTOTAL(intel_wd->trans)); > + drm_dbg_kms(&dev_priv->drm, "vactive_reg : %d\n", tmp); > + /* minimum hactive as per bspec: 64 pixels*/ > + if (hactive < 64) > + drm_err(&dev_priv->drm, "hactive is less then 64 pixels\n"); > + > + intel_de_write(dev_priv, HTOTAL(intel_wd->trans), hactive - 1); > + intel_de_write(dev_priv, VTOTAL(intel_wd->trans), vactive - 1); > + > + tmp = intel_de_read(dev_priv, WD_TRANS_FUNC_CTL(intel_wd- > >trans)); > + /* select pixel format */ > + tmp &= ~WD_PIX_FMT_MASK; > + > + switch (fb->format->format) { > + default: > + fallthrough; > + case DRM_FORMAT_YUYV: > + tmp |= WD_PIX_FMT_YUYV; > + break; > + case DRM_FORMAT_XYUV8888: > + tmp |= WD_PIX_FMT_XYUV8888; > + break; > + case DRM_FORMAT_XBGR8888: > + tmp |= WD_PIX_FMT_XBGR8888; > + break; > + case DRM_FORMAT_Y410: > + tmp |= WD_PIX_FMT_Y410; > + break; > + case DRM_FORMAT_YUV422: > + tmp |= WD_PIX_FMT_YUV422; > + break; > + case DRM_FORMAT_XBGR2101010: > + tmp |= WD_PIX_FMT_XBGR2101010; > + break; > + case DRM_FORMAT_RGB565: > + tmp |= WD_PIX_FMT_RGB565; > + break; > + } > + > + if (intel_wd->triggered_cap_mode) > + tmp |= WD_TRIGGERED_CAP_MODE_ENABLE; > + > + if (intel_wd->stream_cap) > + tmp |= WD_CTL_POINTER_DTDH; > + > + /*select input pipe*/ > + tmp &= ~WD_INPUT_SELECT_MASK; > + drm_dbg_kms(&dev_priv->drm, "Selected pipe is %d\n", pipe); > + switch (pipe) { > + default: > + fallthrough; > + case PIPE_A: > + tmp |= WD_INPUT_PIPE_A; > + break; > + case PIPE_B: > + tmp |= WD_INPUT_PIPE_B; > + break; > + case PIPE_C: > + tmp |= WD_INPUT_PIPE_C; > + break; > + case PIPE_D: > + tmp |= WD_INPUT_PIPE_D; > + break; > + } > + > + /* enable DDI buffer */ > + if (!(tmp & TRANS_WD_FUNC_ENABLE)) > + tmp |= TRANS_WD_FUNC_ENABLE; > + > + intel_de_write(dev_priv, WD_TRANS_FUNC_CTL(intel_wd->trans), > tmp); > + > + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); > + ret = tmp & WD_TRANS_ACTIVE; > + drm_dbg_kms(&dev_priv->drm, "Trancoder enabled: %s\n", ret ? > +"true":"false"); > + > + if (!ret) { > + /*enable the transcoder */ > + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); > + tmp |= WD_TRANS_ENABLE; > + intel_de_write(dev_priv, PIPECONF(intel_wd->trans), tmp); > + > + /* wait for transcoder to be enabled */ > + if (intel_de_wait_for_set(dev_priv, PIPECONF(intel_wd- > >trans), > + WD_TRANS_ACTIVE, 10)) > + drm_err(&dev_priv->drm, "WD transcoder not > enabled\n"); > + } > + > + return 0; > +} > + > +static void intel_wd_disable_capture(struct intel_wd *intel_wd) { > + struct drm_i915_private *dev_priv = to_i915(intel_wd- > >base.base.dev); > + u32 tmp; > + > + intel_de_write_fw(dev_priv, WD_IMR(intel_wd->trans), 0xFF); > + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); > + tmp &= WD_TRANS_DISABLE; > + intel_de_write(dev_priv, PIPECONF(intel_wd->trans), tmp); > + > + drm_dbg_kms(&dev_priv->drm, "WD Trans_Conf value after disable > = 0x%08x\n", > + intel_de_read(dev_priv, PIPECONF(intel_wd->trans))); > + tmp = intel_de_read(dev_priv, WD_TRANS_FUNC_CTL(intel_wd- > >trans)); > + tmp |= ~TRANS_WD_FUNC_ENABLE; > +} > + > +static int intel_wd_capture(struct intel_wd *intel_wd, > + struct intel_crtc_state *pipe_config, > + struct intel_writeback_job *job) > +{ > + u32 tmp; > + struct drm_i915_private *i915 = to_i915(intel_wd->base.base.dev); > + int ret = 0, status = 0; > + struct intel_crtc *wd_crtc = intel_wd->wd_crtc; > + unsigned long flags; > + > + drm_dbg_kms(&i915->drm, "\n"); > + > + if (!job->out_fence) > + drm_dbg_kms(&i915->drm, "Not able to get out_fence for > job\n"); > + > + ret = intel_wd_setup_transcoder(intel_wd, pipe_config, job); > + > + if (ret < 0) { > + drm_dbg_kms(&i915->drm, > + "wd transcoder setup not completed aborting capture\n"); > + return -1; > + } > + > + if (wd_crtc == NULL) { > + DRM_ERROR("CRTC not attached\n"); > + return -1; > + } > + > + tmp = intel_de_read_fw(i915, > + WD_TRANS_FUNC_CTL(intel_wd->trans)); > + tmp |= START_TRIGGER_FRAME; > + tmp &= ~WD_FRAME_NUMBER_MASK; > + tmp |= intel_wd->frame_num; > + intel_de_write_fw(i915, > + WD_TRANS_FUNC_CTL(intel_wd->trans), tmp); > + > + if (!intel_de_wait_for_set(i915, WD_IIR(intel_wd->trans), > + WD_FRAME_COMPLETE_INT, 100)){ > + drm_dbg_kms(&i915->drm, "frame captured\n"); > + tmp = intel_de_read(i915, WD_IIR(intel_wd->trans)); > + drm_dbg_kms(&i915->drm, "iir value : %d\n", tmp); > + status = 0; > + } else { > + drm_dbg_kms(&i915->drm, "frame not captured triggering > stop frame\n"); > + tmp = intel_de_read(i915, > + WD_TRANS_FUNC_CTL(intel_wd->trans)); > + tmp |= STOP_TRIGGER_FRAME; > + intel_de_write(i915, > + WD_TRANS_FUNC_CTL(intel_wd->trans), > tmp); > + status = -1; > + } > + > + intel_de_write(i915, WD_IIR(intel_wd->trans), tmp); > + intel_wd_writeback_complete(intel_wd, job, status); > + if (intel_get_writeback_job_from_queue(intel_wd) == NULL) > + intel_wd_disable_capture(intel_wd); > + if (wd_crtc->wd.e) { > + spin_lock_irqsave(&i915->drm.event_lock, flags); > + drm_dbg_kms(&i915->drm, "send %p\n", wd_crtc->wd.e); > + drm_crtc_send_vblank_event(&wd_crtc->base, > + wd_crtc->wd.e); > + spin_unlock_irqrestore(&i915->drm.event_lock, flags); > + wd_crtc->wd.e = NULL; > + } else { > + DRM_ERROR("Event NULL! %p, %p\n", &i915->drm, > + wd_crtc); > + } > + return 0; > + > +} > + > +void intel_wd_enable_capture(struct intel_encoder *encoder, > + struct intel_crtc_state *pipe_config, > + struct drm_connector_state *conn_state) { > + struct drm_i915_private *i915 = to_i915(encoder->base.dev); > + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); > + struct intel_writeback_job *job; > + > + drm_dbg_kms(&i915->drm, "\n"); > + > + job = intel_get_writeback_job_from_queue(intel_wd); > + if (job == NULL) { > + drm_dbg_kms(&i915->drm, > + "job queue is empty not capturing any frame\n"); > + return; > + } > + > + intel_wd_capture(intel_wd, pipe_config, job); > + intel_wd->frame_num += 1; > + > +} > + > +void intel_wd_set_vblank_event(struct intel_crtc *intel_crtc, > + struct intel_crtc_state *intel_crtc_state) { > + struct drm_i915_private *i915 = to_i915(intel_crtc->base.dev); > + struct drm_crtc_state *state = &intel_crtc_state->uapi; > + struct intel_encoder *encoder; > + struct intel_wd *intel_wd; > + > + for_each_intel_encoder_with_wd(&i915->drm, encoder) { > + intel_wd = enc_to_intel_wd(encoder); > + > + if (!intel_wd->wd_crtc) { > + drm_dbg_kms(&i915->drm, "wd crtc not found\n"); > + return; > + } > + } > + > + if (intel_crtc == intel_wd->wd_crtc) { > + intel_crtc->wd.e = state->event; > + state->event = NULL; > + if (intel_crtc->wd.e) > + drm_dbg_kms(&i915->drm, "WD event:%p\n", > + intel_crtc->wd.e); > + else > + drm_dbg_kms(&i915->drm, "WD no event\n"); > + } > +} > + > +void intel_wd_handle_isr(struct drm_i915_private *i915) { > + u32 iir_value = 0; > + struct intel_encoder *encoder; > + struct intel_wd *intel_wd; > + > + iir_value = intel_de_read(i915, WD_IIR(TRANSCODER_WD_0)); > + drm_dbg_kms(&i915->drm, "\n"); > + > + for_each_intel_encoder_with_wd(&i915->drm, encoder) { > + intel_wd = enc_to_intel_wd(encoder); > + > + if (!intel_wd->wd_crtc) { > + DRM_ERROR("NO CRTC attached with WD\n"); > + goto clear_iir; > + } > + } > + > + if (iir_value & WD_VBLANK_INT) > + drm_dbg_kms(&i915->drm, "vblank interrupt for wd > transcoder\n"); > + if (iir_value & WD_WRITE_COMPLETE_INT) > + drm_dbg_kms(&i915->drm, > + "wd write complete interrupt encountered\n"); > + else > + DRM_INFO("iir: %x\n", iir_value); > + if (iir_value & WD_FRAME_COMPLETE_INT) { > + drm_dbg_kms(&i915->drm, > + "frame complete interrupt for wd transcoder\n"); > + return; > + } > +clear_iir: > + intel_de_write(i915, WD_IIR(TRANSCODER_WD_0), iir_value); } > diff --git a/drivers/gpu/drm/i915/display/intel_wd.h > b/drivers/gpu/drm/i915/display/intel_wd.h > new file mode 100644 > index 000000000000..2309afa23bb8 > --- /dev/null > +++ b/drivers/gpu/drm/i915/display/intel_wd.h > @@ -0,0 +1,82 @@ > +/* SPDX-License-Identifier: GPL-2.0 > + * Copyright © 2021 Intel Corporation > + * > + * Permission is hereby granted, free of charge, to any person > +obtaining a > + * copy of this software and associated documentation files (the > +"Software"), > + * to deal in the Software without restriction, including without > +limitation > + * the rights to use, copy, modify, merge, publish, distribute, > +sublicense, > + * and/or sell copies of the Software, and to permit persons to whom > +the > + * Software is furnished to do so, subject to the following conditions: > + * > + * The above copyright notice and this permission notice (including the > +next > + * paragraph) shall be included in all copies or substantial portions > +of the > + * Software. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > +EXPRESS OR > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > +MERCHANTABILITY, > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO > EVENT > +SHALL > + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, > DAMAGES OR > +OTHER > + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, > +ARISING > + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR > OTHER > + * DEALINGS IN THE SOFTWARE. > + * > + * Author : > + * Suraj Kandpal<suraj.kandpal@intel.com> > + * Arun Murthy<arun.r.murthy@intel.com> > + */ > + > +#ifndef _INTEL_WD_H > +#define _INTEL_WD_H > + > +#include <drm/drm_crtc.h> > +#include <linux/sync_file.h> > + > +#include "intel_display_types.h" > + > +#define I915_MAX_WD_TANSCODERS 2 > + > +struct intel_out_fence_state { > + s32 __user *out_fence_ptr; > + struct sync_file *sync_file; > + int fd; > +}; > + > +struct intel_wd { > + struct intel_encoder base; > + struct intel_crtc *wd_crtc; > + struct intel_out_fence_state *fence_state; > + intel_wakeref_t io_wakeref[I915_MAX_WD_TANSCODERS]; > + struct intel_connector *attached_connector; > + enum transcoder trans; > + struct i915_vma *vma; > + unsigned long flags; > + struct intel_writeback_job *job; > + int triggered_cap_mode; > + int frame_num; > + bool stream_cap; > + bool start_capture; > + int slicing_strategy; > +}; > + > +struct intel_wd_clk_vals { > + u32 cdclk; > + u16 link_m; > + u16 link_n; > +}; > + > +extern struct sync_file *sync_file_create(struct dma_fence *fence); > +static inline struct intel_wd *enc_to_intel_wd(struct intel_encoder > +*encoder) { > + return container_of(&encoder->base, struct intel_wd, base.base); } > +void intel_wd_init(struct drm_i915_private *dev_priv, enum transcoder > +trans); void intel_wd_enable_capture(struct intel_encoder *encoder, > + struct intel_crtc_state *pipe_config, > + struct drm_connector_state *conn_state); > void > +intel_wd_handle_isr(struct drm_i915_private *dev_priv); void > +intel_wd_set_vblank_event(struct intel_crtc *crtc, > + struct intel_crtc_state *state); > +int intel_wd_prepare_out_fence(struct drm_device *dev, > + struct drm_atomic_state *state); > +void intel_wd_complete_signaling(struct intel_wd *intel_wd); > +#endif/* _INTEL_WD_H */ > diff --git a/drivers/gpu/drm/i915/i915_drv.h > b/drivers/gpu/drm/i915/i915_drv.h index 9a86ee88089e..b7e92a18125c > 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -38,6 +38,8 @@ > #include <linux/pm_qos.h> > > #include <drm/drm_connector.h> > +#include <drm/drm_writeback.h> > +#include <drm/i915_mei_hdcp_interface.h> > #include <drm/ttm/ttm_device.h> > > #include "display/intel_bios.h" > diff --git a/drivers/gpu/drm/i915/i915_irq.c > b/drivers/gpu/drm/i915/i915_irq.c index 73cebc6aa650..95a6a8f7a911 100644 > --- a/drivers/gpu/drm/i915/i915_irq.c > +++ b/drivers/gpu/drm/i915/i915_irq.c > @@ -42,6 +42,7 @@ > #include "display/intel_hotplug.h" > #include "display/intel_lpe_audio.h" > #include "display/intel_psr.h" > +#include "display/intel_wd.h" > > #include "gt/intel_breadcrumbs.h" > #include "gt/intel_gt.h" > @@ -2342,6 +2343,11 @@ gen8_de_misc_irq_handler(struct > drm_i915_private *dev_priv, u32 iir) > found = true; > } > > + if (iir & GEN8_DE_MISC_WD0) { > + intel_wd_handle_isr(dev_priv); > + found = true; > + } > + > if (iir & GEN8_DE_EDP_PSR) { > struct intel_encoder *encoder; > u32 psr_iir; > @@ -3767,7 +3773,7 @@ static void gen8_de_irq_postinstall(struct > drm_i915_private *dev_priv) > u32 de_pipe_enables; > u32 de_port_masked = gen8_de_port_aux_mask(dev_priv); > u32 de_port_enables; > - u32 de_misc_masked = GEN8_DE_EDP_PSR; > + u32 de_misc_masked = GEN8_DE_EDP_PSR | GEN8_DE_MISC_WD0; > u32 trans_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | > BIT(TRANSCODER_C) | BIT(TRANSCODER_D); > enum pipe pipe; > diff --git a/drivers/gpu/drm/i915/i915_pci.c > b/drivers/gpu/drm/i915/i915_pci.c index 67b89769f577..a524e0f030b6 > 100644 > --- a/drivers/gpu/drm/i915/i915_pci.c > +++ b/drivers/gpu/drm/i915/i915_pci.c > @@ -853,7 +853,8 @@ static const struct intel_device_info jsl_info = { > .display.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | > BIT(PIPE_D), \ > .display.cpu_transcoder_mask = BIT(TRANSCODER_A) | > BIT(TRANSCODER_B) | \ > BIT(TRANSCODER_C) | BIT(TRANSCODER_D) | \ > - BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1), \ > + BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1)| \ > + BIT(TRANSCODER_WD_0), \ > .pipe_offsets = { \ > [TRANSCODER_A] = PIPE_A_OFFSET, \ > [TRANSCODER_B] = PIPE_B_OFFSET, \ > @@ -861,6 +862,8 @@ static const struct intel_device_info jsl_info = { > [TRANSCODER_D] = PIPE_D_OFFSET, \ > [TRANSCODER_DSI_0] = PIPE_DSI0_OFFSET, \ > [TRANSCODER_DSI_1] = PIPE_DSI1_OFFSET, \ > + [TRANSCODER_WD_0] = PIPE_WD0_OFFSET, \ > + [TRANSCODER_WD_1] = PIPE_WD1_OFFSET, \ > }, \ > .trans_offsets = { \ > [TRANSCODER_A] = TRANSCODER_A_OFFSET, \ @@ -869,6 > +872,8 @@ static const struct intel_device_info jsl_info = { > [TRANSCODER_D] = TRANSCODER_D_OFFSET, \ > [TRANSCODER_DSI_0] = TRANSCODER_DSI0_OFFSET, \ > [TRANSCODER_DSI_1] = TRANSCODER_DSI1_OFFSET, \ > + [TRANSCODER_WD_0] = TRANSCODER_WD0_OFFSET, \ > + [TRANSCODER_WD_1] = TRANSCODER_WD1_OFFSET, \ > }, \ > TGL_CURSOR_OFFSETS, \ > .has_global_mocs = 1, \ > diff --git a/drivers/gpu/drm/i915/i915_reg.h > b/drivers/gpu/drm/i915/i915_reg.h index 6396afd77209..abc41e7de0b5 > 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -3797,6 +3797,11 @@ > #define PIPE_DSI0_OFFSET 0x7b000 > #define PIPE_DSI1_OFFSET 0x7b800 > > +/* WD 0 and 1 */ > +#define PIPE_WD0_OFFSET 0x7e000 > +#define PIPE_WD1_OFFSET 0x7d000 > + > + > #define PIPECONF(pipe) _MMIO_PIPE2(pipe, _PIPEACONF) > #define PIPEDSL(pipe) _MMIO_PIPE2(pipe, _PIPEADSL) > #define PIPEFRAME(pipe) _MMIO_PIPE2(pipe, > _PIPEAFRAMEHIGH) > @@ -4461,6 +4466,10 @@ > #define _PIPEDSI0CONF 0x7b008 > #define _PIPEDSI1CONF 0x7b808 > > +/* WD 0 and 1 */ > +#define _PIPEWD0CONF 0x7e008 > +#define _PIPEWD1CONF 0x7d008 > + > /* Sprite A control */ > #define _DVSACNTR 0x72180 > #define DVS_ENABLE REG_BIT(31) > @@ -5707,6 +5716,7 @@ > #define GEN8_DE_MISC_IER _MMIO(0x4446c) > #define GEN8_DE_MISC_GSE (1 << 27) > #define GEN8_DE_EDP_PSR (1 << 19) > +#define GEN8_DE_MISC_WD0 (1 << 23) > > #define GEN8_PCU_ISR _MMIO(0x444e0) > #define GEN8_PCU_IMR _MMIO(0x444e4) > @@ -8847,6 +8857,133 @@ enum skl_power_gate { > #define DSB_ENABLE (1 << 31) > #define DSB_STATUS (1 << 0) > > +#define TGL_ROOT_DEVICE_ID 0x9A00 > +#define TGL_ROOT_DEVICE_MASK 0xFF00 > +#define TGL_ROOT_DEVICE_SKU_MASK 0xF > +#define TGL_ROOT_DEVICE_SKU_ULX 0x2 > +#define TGL_ROOT_DEVICE_SKU_ULT 0x4 > + > +/* Gen12 WD */ > +#define _MMIO_WD(tc, wd0, wd1) _MMIO_TRANS((tc) - > TRANSCODER_WD_0, \ > + wd0, wd1) > + > +#define WD_TRANS_ENABLE (1 << 31) > +#define WD_TRANS_DISABLE 0 > +#define WD_TRANS_ACTIVE (1 << 30) > + > +/* WD transcoder control */ > +#define _WD_TRANS_FUNC_CTL_0 0x6e400 > +#define _WD_TRANS_FUNC_CTL_1 0x6ec00 > +#define WD_TRANS_FUNC_CTL(tc) _MMIO_WD(tc,\ > + _WD_TRANS_FUNC_CTL_0,\ > + _WD_TRANS_FUNC_CTL_1) > + > +#define TRANS_WD_FUNC_ENABLE (1 << 31) > +#define WD_TRIGGERED_CAP_MODE_ENABLE (1 << 30) > +#define START_TRIGGER_FRAME (1 << 29) > +#define STOP_TRIGGER_FRAME (1 << 28) > +#define WD_CTL_POINTER_ETEH (0 << 18) > +#define WD_CTL_POINTER_ETDH (1 << 18) > +#define WD_CTL_POINTER_DTDH (2 << 18) > +#define WD_INPUT_SELECT_MASK (7 << 12) > +#define WD_INPUT_PIPE_A (0 << 12) > +#define WD_INPUT_PIPE_B (5 << 12) > +#define WD_INPUT_PIPE_C (6 << 12) > +#define WD_INPUT_PIPE_D (7 << 12) > + > +#define WD_PIX_FMT_MASK (0x3 << 20) > +#define WD_PIX_FMT_YUYV (0x1 << 20) > +#define WD_PIX_FMT_XYUV8888 (0x2 << 20) > +#define WD_PIX_FMT_XBGR8888 (0x3 << 20) > +#define WD_PIX_FMT_Y410 (0x4 << 20) > +#define WD_PIX_FMT_YUV422 (0x5 << 20) > +#define WD_PIX_FMT_XBGR2101010 (0x6 << 20) > +#define WD_PIX_FMT_RGB565 (0x7 << 20) > + > +#define WD_FRAME_NUMBER_MASK 15 > + > +#define _WD_STRIDE_0 0x6e510 > +#define _WD_STRIDE_1 0x6ed10 > +#define WD_STRIDE(tc) _MMIO_WD(tc,\ > + _WD_STRIDE_0,\ > + _WD_STRIDE_1) > +#define WD_STRIDE_SHIFT 6 > +#define WD_STRIDE_MASK (0x3ff << WD_STRIDE_SHIFT) > + > +#define _WD_STREAMCAP_CTL0 0x6e590 > +#define _WD_STREAMCAP_CTL1 0x6ed90 > +#define WD_STREAMCAP_CTL(tc) _MMIO_WD(tc,\ > + _WD_STREAMCAP_CTL0,\ > + _WD_STREAMCAP_CTL1) > + > +#define WD_STREAM_CAP_MODE_EN (1 << 31) > +#define WD_STRAT_MASK (3 << 24) > +#define WD_SLICING_STRAT_1_1 (0 << 24) > +#define WD_SLICING_STRAT_2_1 (1 << 24) > +#define WD_SLICING_STRAT_4_1 (2 << 24) > +#define WD_SLICING_STRAT_8_1 (3 << 24) > +#define WD_STREAM_OVERRUN_STATUS 1 > + > +#define _WD_SURF_0 0x6e514 > +#define _WD_SURF_1 0x6ed14 > +#define WD_SURF(tc) _MMIO_WD(tc,\ > + _WD_SURF_0,\ > + _WD_SURF_1) > + > +#define _WD_IMR_0 0x6e560 > +#define _WD_IMR_1 0x6ed60 > +#define WD_IMR(tc) _MMIO_WD(tc,\ > + _WD_IMR_0,\ > + _WD_IMR_1) > +#define WD_FRAME_COMPLETE_INT (1 << 7) > +#define WD_GTT_FAULT_INT (1 << 6) > +#define WD_VBLANK_INT (1 << 5) > +#define WD_OVERRUN_INT (1 << 4) > +#define WD_CAPTURING_INT (1 << 3) > +#define WD_WRITE_COMPLETE_INT (1 << 2) > + > +#define _WD_IIR_0 0x6e564 > +#define _WD_IIR_1 0x6ed64 > +#define WD_IIR(tc) _MMIO_WD(tc,\ > + _WD_IIR_0,\ > + _WD_IIR_1) > + > +#define _WD_FRAME_STATUS_0 0x6e56b > +#define _WD_FRAME_STATUS_1 0x6ed6b > +#define WD_FRAME_STATUS(tc) _MMIO_WD(tc,\ > + _WD_FRAME_STATUS_0,\ > + _WD_FRAME_STATUS_1) > + > +#define WD_FRAME_COMPLETE (1 << 31) > +#define WD_STATE_IDLE (0 << 24) > +#define WD_STATE_CAPSTART (1 << 24) > +#define WD_STATE_FRAME_START (2 << 24) > +#define WD_STATE_CAPACITIVE (3 << 24) > +#define WD_STATE_TG_DONE (4 << 24) > +#define WD_STATE_WDX_DONE (5 << 24) > +#define WD_STATE_QUICK_CAP (6 << 24) > + > +#define _WD_27_M_0 0x6e524 > +#define _WD_27_M_1 0x6ed24 > +#define WD_27_M(tc) _MMIO_WD(tc,\ > + _WD_27_M_0,\ > + _WD_27_M_1) > + > +#define _WD_27_N_0 0x6e528 > + > +//Address looks wrong in bspec: > +#define _WD_27_N_1 0x6ec28 > +#define WD_27_N(tc) _MMIO_WD(tc,\ > + _WD_27_N_0,\ > + _WD_27_N_1) > + > +#define _WD_TAIL_CFG_0 0x6e520 > +#define _WD_TAIL_CFG_1 0x6ed20 > + > +#define WD_TAIL_CFG(tc) _MMIO_WD(tc,\ > + _WD_TAIL_CFG_0,\ > + _WD_TAIL_CFG_1) > + > #define CLKREQ_POLICY _MMIO(0x101038) > #define CLKREQ_POLICY_MEM_UP_OVRD REG_BIT(1) > > -- > 2.35.1
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 087bd9d1b397..5ee32513a945 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -287,6 +287,7 @@ i915-y += \ display/intel_vdsc.o \ display/intel_vrr.o \ display/intel_wb_connector.o\ + display/intel_wd.o\ display/vlv_dsi.o \ display/vlv_dsi_pll.o diff --git a/drivers/gpu/drm/i915/display/intel_acpi.c b/drivers/gpu/drm/i915/display/intel_acpi.c index e78430001f07..ae08db164f73 100644 --- a/drivers/gpu/drm/i915/display/intel_acpi.c +++ b/drivers/gpu/drm/i915/display/intel_acpi.c @@ -247,6 +247,7 @@ static u32 acpi_display_type(struct intel_connector *connector) case DRM_MODE_CONNECTOR_LVDS: case DRM_MODE_CONNECTOR_eDP: case DRM_MODE_CONNECTOR_DSI: + case DRM_MODE_CONNECTOR_WRITEBACK: display_type = ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL; break; case DRM_MODE_CONNECTOR_Unknown: diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index eb49973621f0..6dedc7921f54 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -111,6 +111,7 @@ #include "intel_sprite.h" #include "intel_tc.h" #include "intel_vga.h" +#include "intel_wd.h" #include "i9xx_plane.h" #include "skl_scaler.h" #include "skl_universal_plane.h" @@ -1544,6 +1545,72 @@ static void intel_encoders_update_complete(struct intel_atomic_state *state) } } +static void intel_queue_writeback_job(struct intel_atomic_state *state, + struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) +{ + struct drm_connector_state *new_conn_state; + struct drm_connector *connector; + struct drm_i915_private *i915 = to_i915(intel_crtc->base.dev); + struct intel_wd *intel_wd; + struct intel_connector *intel_connector; + struct intel_digital_connector_state *intel_conn_state; + struct intel_encoder *encoder; + int i; + + for_each_intel_encoder_with_wd(&i915->drm, encoder) { + intel_wd = enc_to_intel_wd(encoder); + + if (intel_wd->wd_crtc != intel_crtc) + return; + + } + + for_each_new_connector_in_state(&state->base, connector, new_conn_state, + i) { + intel_conn_state = to_intel_digital_connector_state(new_conn_state); + if (!intel_conn_state->job) + continue; + intel_connector = to_intel_connector(connector); + intel_writeback_queue_job(&intel_connector->wb_conn, new_conn_state); + drm_dbg_kms(&i915->drm, "queueing writeback job\n"); + } +} + +static void intel_find_writeback_connector(struct intel_atomic_state *state, + struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) +{ + struct drm_connector_state *new_conn_state; + struct drm_connector *connector; + struct drm_i915_private *i915 = to_i915(intel_crtc->base.dev); + struct intel_wd *intel_wd; + struct intel_encoder *encoder; + int i; + + for_each_intel_encoder_with_wd(&i915->drm, encoder) { + intel_wd = enc_to_intel_wd(encoder); + + if (intel_wd->wd_crtc != intel_crtc) + return; + + } + + for_each_new_connector_in_state(&state->base, connector, new_conn_state, + i) { + struct intel_connector *intel_connector; + + intel_connector = to_intel_connector(connector); + drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s]: status: %s\n", + connector->base.id, connector->name, + drm_get_connector_status_name(connector->status)); + encoder = intel_connector_primary_encoder(intel_connector); + if (encoder->type == INTEL_OUTPUT_WD) { + drm_dbg_kms(&i915->drm, "encoder intel_output_wd found\n"); + intel_wd_enable_capture(encoder, crtc_state, new_conn_state); + } + } + +} + static void intel_encoders_pre_pll_enable(struct intel_atomic_state *state, struct intel_crtc *crtc) { @@ -1944,7 +2011,8 @@ static void hsw_crtc_enable(struct intel_atomic_state *state, bdw_set_pipemisc(new_crtc_state); if (!intel_crtc_is_bigjoiner_slave(new_crtc_state) && - !transcoder_is_dsi(cpu_transcoder)) + !transcoder_is_dsi(cpu_transcoder) && + !transcoder_is_wd(cpu_transcoder)) hsw_configure_cpu_transcoder(new_crtc_state); crtc->active = true; @@ -2632,6 +2700,9 @@ static void intel_connector_verify_state(struct intel_crtc_state *crtc_state, if (connector->get_hw_state(connector)) { struct intel_encoder *encoder = intel_attached_encoder(connector); + if (conn_state->connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK) + return; + I915_STATE_WARN(!crtc_state, "connector enabled without attached crtc\n"); @@ -5233,6 +5304,7 @@ static const char * const output_type_str[] = { OUTPUT_TYPE(DSI), OUTPUT_TYPE(DDI), OUTPUT_TYPE(DP_MST), + OUTPUT_TYPE(WD), }; #undef OUTPUT_TYPE @@ -8577,6 +8649,12 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) } } + if (DISPLAY_VER(dev_priv) >= 12) { + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + intel_wd_set_vblank_event(crtc, new_crtc_state); + } + } + intel_encoders_update_prepare(state); intel_dbuf_pre_plane_update(state); @@ -8662,6 +8740,14 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) intel_sagv_post_plane_update(state); + if (DISPLAY_VER(dev_priv) >= 12) { + intel_wd_prepare_out_fence(dev, &state->base); + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + intel_queue_writeback_job(state, crtc, new_crtc_state); + intel_find_writeback_connector(state, crtc, new_crtc_state); + } + } + drm_atomic_helper_commit_hw_done(&state->base); if (state->modeset) { @@ -8966,6 +9052,7 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv) intel_ddi_init(dev_priv, PORT_TC1); intel_ddi_init(dev_priv, PORT_TC2); } else if (DISPLAY_VER(dev_priv) >= 12) { + intel_wd_init(dev_priv, TRANSCODER_WD_0); intel_ddi_init(dev_priv, PORT_A); intel_ddi_init(dev_priv, PORT_B); intel_ddi_init(dev_priv, PORT_TC1); diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index 8c93a5de8e07..27237d36a888 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -156,6 +156,11 @@ static inline bool transcoder_is_dsi(enum transcoder transcoder) return transcoder == TRANSCODER_DSI_A || transcoder == TRANSCODER_DSI_C; } +static inline bool transcoder_is_wd(enum transcoder transcoder) +{ + return transcoder == TRANSCODER_WD_0 || transcoder == TRANSCODER_WD_1; +} + /* * Global legacy plane identifier. Valid only for primary/sprite * planes on pre-g4x, and only for primary planes on g4x-bdw. @@ -467,6 +472,10 @@ enum hpd_pin { for_each_intel_encoder((dev), (intel_encoder)) \ for_each_if(intel_encoder_can_psr(intel_encoder)) +#define for_each_intel_encoder_with_wd(dev, intel_encoder) \ + for_each_intel_encoder(dev, intel_encoder) \ + for_each_if(intel_encoder_is_wd(intel_encoder)) + #define for_each_intel_connector_iter(intel_connector, iter) \ while ((intel_connector = to_intel_connector(drm_connector_list_iter_next(iter)))) diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index dcb4ad43cf88..8522c348a73d 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1293,6 +1293,11 @@ struct intel_crtc { bool cpu_fifo_underrun_disabled; bool pch_fifo_underrun_disabled; + struct { + struct drm_pending_vblank_event *e; + atomic_t work_busy; + wait_queue_head_t wd_wait; + } wd; /* per-pipe watermark state */ struct { /* watermarks currently being used */ @@ -1420,6 +1425,7 @@ struct cxsr_latency { #define to_intel_crtc(x) container_of(x, struct intel_crtc, base) #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, uapi) #define to_intel_connector(x) container_of(x, struct intel_connector, base) +#define to_intel_wb_connector(x) container_of(x, struct intel_wb_connector, base) #define to_intel_encoder(x) container_of(x, struct intel_encoder, base) #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base) #define to_intel_plane(x) container_of(x, struct intel_plane, base) @@ -1851,6 +1857,13 @@ static inline bool intel_encoder_is_dp(struct intel_encoder *encoder) } } +static inline bool intel_encoder_is_wd(struct intel_encoder *encoder) +{ + if (encoder->type == INTEL_OUTPUT_WD) + return true; + return false; +} + static inline struct intel_lspcon * enc_to_intel_lspcon(struct intel_encoder *encoder) { diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c b/drivers/gpu/drm/i915/display/intel_dpll.c index 95b9d327ed4d..dfea17f5f99d 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll.c +++ b/drivers/gpu/drm/i915/display/intel_dpll.c @@ -939,6 +939,9 @@ static int hsw_crtc_compute_clock(struct intel_crtc_state *crtc_state) if (IS_DG2(dev_priv)) return intel_mpllb_calc_state(crtc_state, encoder); + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_WD)) + return 0; + if (DISPLAY_VER(dev_priv) < 11 && intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI)) return 0; diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c index f31e8c3f8ce0..b7a0ac9bad05 100644 --- a/drivers/gpu/drm/i915/display/intel_opregion.c +++ b/drivers/gpu/drm/i915/display/intel_opregion.c @@ -370,6 +370,9 @@ int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, if (ret) return ret; + if (intel_encoder->type == INTEL_OUTPUT_WD) + return 0; + if (intel_encoder->type == INTEL_OUTPUT_DSI) port = 0; else diff --git a/drivers/gpu/drm/i915/display/intel_wd.c b/drivers/gpu/drm/i915/display/intel_wd.c new file mode 100644 index 000000000000..a6c9350c3986 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_wd.c @@ -0,0 +1,978 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright © 2021 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Suraj Kandpal <suraj.kandpal@intel.com> + * Arun Murthy <arun.r.murthy@intel.com> + * + */ + +#include <drm/drm_atomic_helper.h> +#include <drm/drm_fourcc.h> + +#include "intel_atomic.h" +#include "intel_connector.h" +#include "intel_wd.h" +#include "intel_fb_pin.h" +#include "intel_de.h" +#include "intel_wb_connector.h" + +enum { + WD_CAPTURE_4_PIX, + WD_CAPTURE_2_PIX, +} wd_capture_format; + +static struct intel_writeback_job +*intel_get_writeback_job_from_queue(struct intel_wd *intel_wd) +{ + struct intel_writeback_job *job; + struct drm_i915_private *i915 = to_i915(intel_wd->base.base.dev); + struct intel_writeback_connector *wb_conn = + &intel_wd->attached_connector->wb_conn; + unsigned long flags; + + spin_lock_irqsave(&wb_conn->job_lock, flags); + job = list_first_entry_or_null(&wb_conn->job_queue, + struct intel_writeback_job, + list_entry); + spin_unlock_irqrestore(&wb_conn->job_lock, flags); + if (job == NULL) { + drm_dbg_kms(&i915->drm, "job queue is empty\n"); + return NULL; + } + + return job; +} + +/*Check with Spec*/ +static const u32 wb_fmts[] = { + DRM_FORMAT_YUV444, + DRM_FORMAT_XYUV8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_Y410, + DRM_FORMAT_YUV422, + DRM_FORMAT_XBGR2101010, + DRM_FORMAT_RGB565, + +}; + +static int intel_wd_get_format(int pixel_format) +{ + int wd_format = -EINVAL; + + switch (pixel_format) { + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_XYUV8888: + case DRM_FORMAT_YUV444: + wd_format = WD_CAPTURE_4_PIX; + break; + case DRM_FORMAT_YUV422: + case DRM_FORMAT_RGB565: + wd_format = WD_CAPTURE_2_PIX; + break; + default: + DRM_ERROR("unsupported pixel format %x!\n", + pixel_format); + } + + return wd_format; +} + +static int intel_wd_verify_pix_format(int format) +{ + const struct drm_format_info *info = drm_format_info(format); + int pix_format = info->format; + int i = 0; + + for (i = 0; i < ARRAY_SIZE(wb_fmts); i++) + if (pix_format == wb_fmts[i]) + return 0; + + return 1; +} + +static u32 intel_wd_get_stride(const struct intel_crtc_state *crtc_state, + int format) +{ + const struct drm_format_info *info = drm_format_info(format); + int wd_format; + int hactive, pixel_size; + + wd_format = intel_wd_get_format(info->format); + + switch (wd_format) { + case WD_CAPTURE_4_PIX: + pixel_size = 4; + break; + case WD_CAPTURE_2_PIX: + pixel_size = 2; + break; + default: + pixel_size = 1; + break; + } + + hactive = crtc_state->hw.adjusted_mode.crtc_hdisplay; + + return DIV_ROUND_UP(hactive * pixel_size, 64); +} + +static int intel_wd_pin_fb(struct intel_wd *intel_wd, + struct drm_framebuffer *fb) +{ + const struct i915_ggtt_view view = { + .type = I915_GGTT_VIEW_NORMAL, + }; + struct i915_vma *vma; + + vma = intel_pin_and_fence_fb_obj(fb, false, &view, false, + &intel_wd->flags); + + if (IS_ERR(vma)) + return PTR_ERR(vma); + + intel_wd->vma = vma; + return 0; +} + +static void intel_configure_slicing_strategy(struct drm_i915_private *i915, + struct intel_wd *intel_wd, u32 *tmp) +{ + *tmp &= ~WD_STRAT_MASK; + if (intel_wd->slicing_strategy == 1) + *tmp |= WD_SLICING_STRAT_1_1; + else if (intel_wd->slicing_strategy == 2) + *tmp |= WD_SLICING_STRAT_2_1; + else if (intel_wd->slicing_strategy == 3) + *tmp |= WD_SLICING_STRAT_4_1; + else if (intel_wd->slicing_strategy == 4) + *tmp |= WD_SLICING_STRAT_8_1; + + intel_de_write(i915, WD_STREAMCAP_CTL(intel_wd->trans), + *tmp); + +} + +static enum drm_mode_status +intel_wd_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + return MODE_OK; +} + +static int intel_wd_get_modes(struct drm_connector *connector) +{ + return 0; +} + +static void intel_wd_get_config(struct intel_encoder *encoder, + struct intel_crtc_state *pipe_config) +{ + struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_crtc *intel_crtc = + to_intel_crtc(pipe_config->uapi.crtc); + + drm_dbg_kms(&i915->drm, "\n"); + if (intel_crtc) { + memcpy(pipe_config, intel_crtc->config, + sizeof(*pipe_config)); + pipe_config->output_types |= BIT(INTEL_OUTPUT_WD); + drm_dbg_kms(&i915->drm, "crtc found\n"); + } + +} + +static int intel_wd_compute_config(struct intel_encoder *encoder, + struct intel_crtc_state *pipe_config, + struct drm_connector_state *conn_state) +{ + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); + struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_digital_connector_state *intel_conn_state = + to_intel_digital_connector_state(conn_state); + struct intel_writeback_job *job; + + drm_dbg_kms(&i915->drm, "\n"); + job = intel_get_writeback_job_from_queue(intel_wd); + if (job || intel_conn_state->job) { + intel_wd->wd_crtc = to_intel_crtc(pipe_config->uapi.crtc); + return 0; + } + drm_dbg_kms(&i915->drm, "No writebackjob in queue\n"); + + return 0; +} + +static void intel_wd_get_power_domains(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); + intel_wakeref_t wakeref; + + wakeref = intel_display_power_get(i915, + encoder->power_domain); + + intel_wd->io_wakeref[0] = wakeref; + drm_dbg_kms(&i915->drm, "\n"); +} + +static bool intel_wd_get_hw_state(struct intel_encoder *encoder, + enum pipe *pipe) +{ + bool ret = false; + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); + struct intel_crtc *wd_crtc = intel_wd->wd_crtc; + intel_wakeref_t wakeref; + u32 tmp; + + if (wd_crtc) + return false; + + wakeref = intel_display_power_get_if_enabled(dev_priv, + encoder->power_domain); + drm_dbg_kms(encoder->base.dev, "power enabled : %s\n", + !wakeref ? "false":"true"); + + if (!wakeref) + return false; + + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); + ret = tmp & WD_TRANS_ACTIVE; + drm_dbg_kms(encoder->base.dev, "trancoder enabled: %s\n", + ret ? "true":"false"); + if (ret) { + *pipe = wd_crtc->pipe; + drm_dbg_kms(encoder->base.dev, "pipe selected is %d\n", + wd_crtc->pipe); + } + return true; +} + +static int intel_wd_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_st, + struct drm_connector_state *conn_st) +{ + /* Check for the format and buffers and property validity */ + struct drm_framebuffer *fb; + struct intel_digital_connector_state *intel_conn_state = + to_intel_digital_connector_state(conn_st); + struct intel_writeback_job *job = intel_conn_state->job; + struct drm_i915_private *i915 = to_i915(encoder->dev); + const struct drm_display_mode *mode = &crtc_st->mode; + int ret; + + drm_dbg_kms(&i915->drm, "\n"); + + if (!job) { + drm_dbg_kms(&i915->drm, "No writeback job created returning\n"); + return -EINVAL; + } + + fb = job->fb; + + if (!fb) { + drm_dbg_kms(&i915->drm, "Invalid framebuffer\n"); + return -EINVAL; + } + + if (fb->width != mode->hdisplay || fb->height != mode->vdisplay) { + drm_dbg_kms(&i915->drm, "Invalid framebuffer size %ux%u\n", + fb->width, fb->height); + return -EINVAL; + } + + ret = intel_wd_verify_pix_format(fb->format->format); + + if (ret) { + drm_dbg_kms(&i915->drm, "Unsupported framebuffer format %08x\n", + fb->format->format); + return -EINVAL; + } + + return 0; +} + + +static const struct drm_encoder_helper_funcs wd_encoder_helper_funcs = { + .atomic_check = intel_wd_encoder_atomic_check, +}; + +static void intel_wd_connector_destroy(struct drm_connector *connector) +{ + drm_dbg_kms(connector->dev, "\n"); + drm_connector_cleanup(connector); + kfree(connector); +} + +static enum drm_connector_status +intel_wb_connector_detect(struct drm_connector *connector, bool force) +{ + drm_dbg_kms(connector->dev, "Writeback connector connected\n"); + return connector_status_connected; +} + +static int intel_atomic_set_writeback_fb_for_connector( + struct drm_connector_state *conn_state, + struct drm_framebuffer *fb) +{ + int ret; + struct drm_connector *conn = conn_state->connector; + + ret = intel_writeback_set_fb(conn_state, fb); + if (ret < 0) + return ret; + + if (fb) + drm_dbg_atomic(conn->dev, + "Set [FB:%d] for connector state %p\n", + fb->base.id, conn_state); + else + drm_dbg_atomic(conn->dev, + "Set [NOFB] for connector state %p\n", + conn_state); + + return 0; +} + +static int set_out_fence_for_connector(struct drm_atomic_state *state, + struct drm_connector *connector, + s32 __user *fence_ptr) +{ + unsigned int index = drm_connector_index(connector); + + if (!fence_ptr) + return 0; + + if (put_user(-1, fence_ptr)) + return -EFAULT; + + state->connectors[index].out_fence_ptr = fence_ptr; + + return 0; +} + +static struct drm_mode_object *__intel_object_find(struct drm_device *dev, + uint32_t id, uint32_t type) +{ + struct drm_mode_object *obj = NULL; + + mutex_lock(&dev->mode_config.idr_mutex); + obj = idr_find(&dev->mode_config.object_idr, id); + if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) + obj = NULL; + if (obj && obj->id != id) + obj = NULL; + if (obj && obj->free_cb) { + if (!kref_get_unless_zero(&obj->refcount)) + obj = NULL; + } + mutex_unlock(&dev->mode_config.idr_mutex); + + return obj; +} + +static struct drm_framebuffer *intel_wb_framebuffer_lookup(struct drm_device *dev, + uint32_t id) +{ + struct drm_mode_object *obj; + struct drm_framebuffer *fb = NULL; + + obj = __intel_object_find(dev, id, DRM_MODE_OBJECT_FB); + if (obj) + fb = obj_to_fb(obj); + return fb; +} + +static s32 *intel_get_out_fence_for_connector(struct drm_atomic_state *state, + struct drm_connector *connector) +{ + unsigned int index = drm_connector_index(connector); + s32 __user *fence_ptr; + + fence_ptr = state->connectors[index].out_fence_ptr; + state->connectors[index].out_fence_ptr = NULL; + + return fence_ptr; +} + +static int intel_setup_out_fence(struct intel_out_fence_state *fence_state, + struct dma_fence *fence) +{ + + fence_state->fd = get_unused_fd_flags(O_CLOEXEC); + if (fence_state->fd < 0) + return fence_state->fd; + + if (put_user(fence_state->fd, fence_state->out_fence_ptr)) + return -EFAULT; + + fence_state->sync_file = sync_file_create(fence); + if (!fence_state->sync_file) + return -ENOMEM; + + return 0; +} + +int intel_wd_prepare_out_fence(struct drm_device *dev, + struct drm_atomic_state *state) +{ + struct drm_connector *conn; + struct drm_connector_state *conn_state; + int i, ret; + + drm_dbg_kms(dev, "\n"); + + for_each_new_connector_in_state(state, conn, conn_state, i) { + struct intel_writeback_connector *wb_conn; + struct intel_connector *intel_conn = + to_intel_connector(conn); + struct dma_fence *fence; + struct intel_wd *intel_wd; + struct intel_digital_connector_state *intel_conn_state = + to_intel_digital_connector_state(conn_state); + s32 __user *fence_ptr; + + if (conn->connector_type != DRM_MODE_CONNECTOR_WRITEBACK) + continue; + + if (!intel_conn_state->job) + continue; + + intel_wd = enc_to_intel_wd(intel_conn->encoder); + fence_ptr = intel_get_out_fence_for_connector(state, conn); + if (!fence_ptr) + continue; + + intel_wd->fence_state->out_fence_ptr = fence_ptr; + + wb_conn = &intel_conn->wb_conn; + fence = intel_writeback_get_out_fence(wb_conn); + if (!fence) + return -ENOMEM; + + ret = intel_setup_out_fence(intel_wd->fence_state, fence); + if (ret) { + dma_fence_put(fence); + return ret; + } + + intel_conn_state->job->out_fence = fence; + } + + return 0; +} + +void intel_wd_complete_signaling(struct intel_wd *intel_wd) +{ + struct intel_out_fence_state *fence_state; + + fence_state = intel_wd->fence_state; + fd_install(fence_state->fd, + fence_state->sync_file->file); + +} + +static int intel_set_writeback_property(struct drm_connector *connector, + struct drm_connector_state *state, struct drm_property *property, + uint64_t val) +{ + struct drm_device *dev = connector->dev; + struct drm_i915_private *i915 = to_i915(dev); + + if (property == i915->wb_fb_id_property) { + struct drm_framebuffer *fb; + int ret; + + fb = intel_wb_framebuffer_lookup(dev, val); + ret = intel_atomic_set_writeback_fb_for_connector(state, fb); + if (fb) + drm_framebuffer_put(fb); + return ret; + } else if (property == i915->wb_out_fence_ptr_property) { + s32 __user *fence_ptr = u64_to_user_ptr(val); + + return set_out_fence_for_connector(state->state, connector, + fence_ptr); + } else { + drm_dbg_atomic(connector->dev, + "[CONNECTOR:%d:%s] unknown property [PROP:%d:%s]]\n", + connector->base.id, connector->name, + property->base.id, property->name); + return -EINVAL; + } + + return 0; + +} + +static int intel_get_writeback_property(struct drm_connector *connector, + const struct drm_connector_state *state, struct drm_property *property, + uint64_t *val) +{ + struct drm_device *dev = connector->dev; + struct drm_i915_private *i915 = to_i915(dev); + + if (property == i915->wb_fb_id_property) + *val = 0; + else if (property == i915->wb_out_fence_ptr_property) + *val = 0; + else { + drm_dbg_atomic(&i915->drm, + "Unknown property [PROP:%d:%s]\n", + property->base.id, property->name); + return -EINVAL; + } + + return 0; +} + +static const struct drm_connector_funcs wd_connector_funcs = { + .detect = intel_wb_connector_detect, + .reset = drm_atomic_helper_connector_reset, + .destroy = intel_wd_connector_destroy, + .fill_modes = drm_helper_probe_single_connector_modes, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, + .atomic_set_property = intel_set_writeback_property, + .atomic_get_property = intel_get_writeback_property, + .atomic_duplicate_state = intel_digital_connector_duplicate_state, +}; + +static const struct drm_connector_helper_funcs wd_connector_helper_funcs = { + .get_modes = intel_wd_get_modes, + .mode_valid = intel_wd_mode_valid, +}; + +static bool intel_fastset_dis(struct intel_encoder *encoder, + struct intel_crtc_state *pipe_config) +{ + pipe_config->uapi.mode_changed = true; + drm_dbg_kms(encoder->base.dev, "\n"); + return false; +} + +void intel_wd_init(struct drm_i915_private *i915, enum transcoder trans) +{ + struct intel_wd *intel_wd; + struct intel_encoder *encoder; + struct intel_out_fence_state *fence_state; + struct intel_connector *intel_connector; + struct intel_writeback_connector *wb_conn; + int n_formats = ARRAY_SIZE(wb_fmts); + int err; + + drm_dbg_kms(&i915->drm, "\n"); + intel_wd = kzalloc(sizeof(*intel_wd), GFP_KERNEL); + if (!intel_wd) + return; + + intel_connector = intel_connector_alloc(); + if (!intel_connector) { + kfree(intel_wd); + return; + } + + fence_state = kzalloc(sizeof(*fence_state), GFP_KERNEL); + if (!intel_wd) { + kfree(intel_wd); + kfree(intel_connector); + return; + } + + wb_conn = &intel_connector->wb_conn; + wb_conn->base = &intel_connector->base; + wb_conn->encoder = &intel_wd->base.base; + + encoder = &intel_wd->base; + intel_wd->attached_connector = intel_connector; + intel_wd->fence_state = fence_state; + intel_wd->trans = trans; + intel_wd->triggered_cap_mode = 1; + intel_wd->frame_num = 1; + intel_wd->slicing_strategy = 1; + encoder->get_config = intel_wd_get_config; + encoder->compute_config = intel_wd_compute_config; + encoder->get_hw_state = intel_wd_get_hw_state; + encoder->type = INTEL_OUTPUT_WD; + encoder->cloneable = 0; + encoder->pipe_mask = ~0; + encoder->power_domain = POWER_DOMAIN_TRANSCODER_B; + encoder->get_power_domains = intel_wd_get_power_domains; + encoder->initial_fastset_check = intel_fastset_dis; + intel_connector->get_hw_state = + intel_connector_get_hw_state; + + drm_dbg_kms(&i915->drm, "\n"); + err = intel_writeback_connector_init(&i915->drm, wb_conn, + &wd_connector_funcs, + &wd_encoder_helper_funcs, + wb_fmts, n_formats); + + if (err != 0) { + drm_dbg_kms(&i915->drm, + "intel_writeback_connector_init: Failed: %d\n", + err); + goto cleanup; + } + + drm_connector_helper_add(wb_conn->base, &wd_connector_helper_funcs); + intel_connector_attach_encoder(intel_connector, encoder); + wb_conn->base->status = connector_status_connected; + return; + +cleanup: + kfree(intel_wd); + intel_connector_free(intel_connector); +} + +static void intel_wd_writeback_complete(struct intel_wd *intel_wd, + struct intel_writeback_job *job, int status) +{ + struct intel_writeback_connector *wb_conn = + &intel_wd->attached_connector->wb_conn; + intel_writeback_signal_completion(wb_conn, status); + intel_wd_complete_signaling(intel_wd); +} + +static int intel_wd_setup_transcoder(struct intel_wd *intel_wd, + struct intel_crtc_state *pipe_config, + struct intel_writeback_job *job) +{ + struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc); + enum pipe pipe = intel_crtc->pipe; + struct drm_framebuffer *fb; + struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); + struct drm_gem_object *wd_fb_obj; + int ret; + u32 stride, tmp; + u16 hactive, vactive; + + fb = job->fb; + wd_fb_obj = fb->obj[0]; + if (!wd_fb_obj) { + drm_dbg_kms(&dev_priv->drm, "No framebuffer gem object created\n"); + return -1; + } + ret = intel_wd_pin_fb(intel_wd, fb); + drm_WARN_ON(&dev_priv->drm, ret != 0); + + /*Write stride and surface registers in that particular order*/ + stride = intel_wd_get_stride(pipe_config, fb->format->format); + + tmp = intel_de_read(dev_priv, WD_STRIDE(intel_wd->trans)); + tmp &= ~WD_STRIDE_MASK; + tmp |= (stride << WD_STRIDE_SHIFT); + + intel_de_write(dev_priv, WD_STRIDE(intel_wd->trans), tmp); + + tmp = intel_de_read(dev_priv, WD_SURF(intel_wd->trans)); + drm_dbg_kms(&dev_priv->drm, "%d is the surface address\n", tmp); + + intel_de_write(dev_priv, WD_SURF(intel_wd->trans), + i915_ggtt_offset(intel_wd->vma)); + + tmp = intel_de_read_fw(dev_priv, WD_IIR(intel_wd->trans)); + intel_de_write_fw(dev_priv, WD_IIR(intel_wd->trans), tmp); + + tmp = ~(WD_GTT_FAULT_INT|WD_WRITE_COMPLETE_INT|WD_FRAME_COMPLETE_INT| + WD_VBLANK_INT|WD_OVERRUN_INT|WD_CAPTURING_INT); + intel_de_write_fw(dev_priv, WD_IMR(intel_wd->trans), tmp); + + if (intel_wd->stream_cap) { + tmp = intel_de_read(dev_priv, + WD_STREAMCAP_CTL(intel_wd->trans)); + tmp |= WD_STREAM_CAP_MODE_EN; + intel_configure_slicing_strategy(dev_priv, intel_wd, &tmp); + } + + hactive = pipe_config->uapi.mode.hdisplay; + vactive = pipe_config->uapi.mode.vdisplay; + + drm_dbg_kms(&dev_priv->drm, "hactive : %d, vactive: %d\n", hactive, vactive); + + tmp = intel_de_read(dev_priv, HTOTAL(intel_wd->trans)); + drm_dbg_kms(&dev_priv->drm, "hactive_reg : %d\n", tmp); + tmp = intel_de_read(dev_priv, VTOTAL(intel_wd->trans)); + drm_dbg_kms(&dev_priv->drm, "vactive_reg : %d\n", tmp); + /* minimum hactive as per bspec: 64 pixels*/ + if (hactive < 64) + drm_err(&dev_priv->drm, "hactive is less then 64 pixels\n"); + + intel_de_write(dev_priv, HTOTAL(intel_wd->trans), hactive - 1); + intel_de_write(dev_priv, VTOTAL(intel_wd->trans), vactive - 1); + + tmp = intel_de_read(dev_priv, WD_TRANS_FUNC_CTL(intel_wd->trans)); + /* select pixel format */ + tmp &= ~WD_PIX_FMT_MASK; + + switch (fb->format->format) { + default: + fallthrough; + case DRM_FORMAT_YUYV: + tmp |= WD_PIX_FMT_YUYV; + break; + case DRM_FORMAT_XYUV8888: + tmp |= WD_PIX_FMT_XYUV8888; + break; + case DRM_FORMAT_XBGR8888: + tmp |= WD_PIX_FMT_XBGR8888; + break; + case DRM_FORMAT_Y410: + tmp |= WD_PIX_FMT_Y410; + break; + case DRM_FORMAT_YUV422: + tmp |= WD_PIX_FMT_YUV422; + break; + case DRM_FORMAT_XBGR2101010: + tmp |= WD_PIX_FMT_XBGR2101010; + break; + case DRM_FORMAT_RGB565: + tmp |= WD_PIX_FMT_RGB565; + break; + } + + if (intel_wd->triggered_cap_mode) + tmp |= WD_TRIGGERED_CAP_MODE_ENABLE; + + if (intel_wd->stream_cap) + tmp |= WD_CTL_POINTER_DTDH; + + /*select input pipe*/ + tmp &= ~WD_INPUT_SELECT_MASK; + drm_dbg_kms(&dev_priv->drm, "Selected pipe is %d\n", pipe); + switch (pipe) { + default: + fallthrough; + case PIPE_A: + tmp |= WD_INPUT_PIPE_A; + break; + case PIPE_B: + tmp |= WD_INPUT_PIPE_B; + break; + case PIPE_C: + tmp |= WD_INPUT_PIPE_C; + break; + case PIPE_D: + tmp |= WD_INPUT_PIPE_D; + break; + } + + /* enable DDI buffer */ + if (!(tmp & TRANS_WD_FUNC_ENABLE)) + tmp |= TRANS_WD_FUNC_ENABLE; + + intel_de_write(dev_priv, WD_TRANS_FUNC_CTL(intel_wd->trans), tmp); + + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); + ret = tmp & WD_TRANS_ACTIVE; + drm_dbg_kms(&dev_priv->drm, "Trancoder enabled: %s\n", ret ? "true":"false"); + + if (!ret) { + /*enable the transcoder */ + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); + tmp |= WD_TRANS_ENABLE; + intel_de_write(dev_priv, PIPECONF(intel_wd->trans), tmp); + + /* wait for transcoder to be enabled */ + if (intel_de_wait_for_set(dev_priv, PIPECONF(intel_wd->trans), + WD_TRANS_ACTIVE, 10)) + drm_err(&dev_priv->drm, "WD transcoder not enabled\n"); + } + + return 0; +} + +static void intel_wd_disable_capture(struct intel_wd *intel_wd) +{ + struct drm_i915_private *dev_priv = to_i915(intel_wd->base.base.dev); + u32 tmp; + + intel_de_write_fw(dev_priv, WD_IMR(intel_wd->trans), 0xFF); + tmp = intel_de_read(dev_priv, PIPECONF(intel_wd->trans)); + tmp &= WD_TRANS_DISABLE; + intel_de_write(dev_priv, PIPECONF(intel_wd->trans), tmp); + + drm_dbg_kms(&dev_priv->drm, "WD Trans_Conf value after disable = 0x%08x\n", + intel_de_read(dev_priv, PIPECONF(intel_wd->trans))); + tmp = intel_de_read(dev_priv, WD_TRANS_FUNC_CTL(intel_wd->trans)); + tmp |= ~TRANS_WD_FUNC_ENABLE; +} + +static int intel_wd_capture(struct intel_wd *intel_wd, + struct intel_crtc_state *pipe_config, + struct intel_writeback_job *job) +{ + u32 tmp; + struct drm_i915_private *i915 = to_i915(intel_wd->base.base.dev); + int ret = 0, status = 0; + struct intel_crtc *wd_crtc = intel_wd->wd_crtc; + unsigned long flags; + + drm_dbg_kms(&i915->drm, "\n"); + + if (!job->out_fence) + drm_dbg_kms(&i915->drm, "Not able to get out_fence for job\n"); + + ret = intel_wd_setup_transcoder(intel_wd, pipe_config, job); + + if (ret < 0) { + drm_dbg_kms(&i915->drm, + "wd transcoder setup not completed aborting capture\n"); + return -1; + } + + if (wd_crtc == NULL) { + DRM_ERROR("CRTC not attached\n"); + return -1; + } + + tmp = intel_de_read_fw(i915, + WD_TRANS_FUNC_CTL(intel_wd->trans)); + tmp |= START_TRIGGER_FRAME; + tmp &= ~WD_FRAME_NUMBER_MASK; + tmp |= intel_wd->frame_num; + intel_de_write_fw(i915, + WD_TRANS_FUNC_CTL(intel_wd->trans), tmp); + + if (!intel_de_wait_for_set(i915, WD_IIR(intel_wd->trans), + WD_FRAME_COMPLETE_INT, 100)){ + drm_dbg_kms(&i915->drm, "frame captured\n"); + tmp = intel_de_read(i915, WD_IIR(intel_wd->trans)); + drm_dbg_kms(&i915->drm, "iir value : %d\n", tmp); + status = 0; + } else { + drm_dbg_kms(&i915->drm, "frame not captured triggering stop frame\n"); + tmp = intel_de_read(i915, + WD_TRANS_FUNC_CTL(intel_wd->trans)); + tmp |= STOP_TRIGGER_FRAME; + intel_de_write(i915, + WD_TRANS_FUNC_CTL(intel_wd->trans), tmp); + status = -1; + } + + intel_de_write(i915, WD_IIR(intel_wd->trans), tmp); + intel_wd_writeback_complete(intel_wd, job, status); + if (intel_get_writeback_job_from_queue(intel_wd) == NULL) + intel_wd_disable_capture(intel_wd); + if (wd_crtc->wd.e) { + spin_lock_irqsave(&i915->drm.event_lock, flags); + drm_dbg_kms(&i915->drm, "send %p\n", wd_crtc->wd.e); + drm_crtc_send_vblank_event(&wd_crtc->base, + wd_crtc->wd.e); + spin_unlock_irqrestore(&i915->drm.event_lock, flags); + wd_crtc->wd.e = NULL; + } else { + DRM_ERROR("Event NULL! %p, %p\n", &i915->drm, + wd_crtc); + } + return 0; + +} + +void intel_wd_enable_capture(struct intel_encoder *encoder, + struct intel_crtc_state *pipe_config, + struct drm_connector_state *conn_state) +{ + struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_wd *intel_wd = enc_to_intel_wd(encoder); + struct intel_writeback_job *job; + + drm_dbg_kms(&i915->drm, "\n"); + + job = intel_get_writeback_job_from_queue(intel_wd); + if (job == NULL) { + drm_dbg_kms(&i915->drm, + "job queue is empty not capturing any frame\n"); + return; + } + + intel_wd_capture(intel_wd, pipe_config, job); + intel_wd->frame_num += 1; + +} + +void intel_wd_set_vblank_event(struct intel_crtc *intel_crtc, + struct intel_crtc_state *intel_crtc_state) +{ + struct drm_i915_private *i915 = to_i915(intel_crtc->base.dev); + struct drm_crtc_state *state = &intel_crtc_state->uapi; + struct intel_encoder *encoder; + struct intel_wd *intel_wd; + + for_each_intel_encoder_with_wd(&i915->drm, encoder) { + intel_wd = enc_to_intel_wd(encoder); + + if (!intel_wd->wd_crtc) { + drm_dbg_kms(&i915->drm, "wd crtc not found\n"); + return; + } + } + + if (intel_crtc == intel_wd->wd_crtc) { + intel_crtc->wd.e = state->event; + state->event = NULL; + if (intel_crtc->wd.e) + drm_dbg_kms(&i915->drm, "WD event:%p\n", + intel_crtc->wd.e); + else + drm_dbg_kms(&i915->drm, "WD no event\n"); + } +} + +void intel_wd_handle_isr(struct drm_i915_private *i915) +{ + u32 iir_value = 0; + struct intel_encoder *encoder; + struct intel_wd *intel_wd; + + iir_value = intel_de_read(i915, WD_IIR(TRANSCODER_WD_0)); + drm_dbg_kms(&i915->drm, "\n"); + + for_each_intel_encoder_with_wd(&i915->drm, encoder) { + intel_wd = enc_to_intel_wd(encoder); + + if (!intel_wd->wd_crtc) { + DRM_ERROR("NO CRTC attached with WD\n"); + goto clear_iir; + } + } + + if (iir_value & WD_VBLANK_INT) + drm_dbg_kms(&i915->drm, "vblank interrupt for wd transcoder\n"); + if (iir_value & WD_WRITE_COMPLETE_INT) + drm_dbg_kms(&i915->drm, + "wd write complete interrupt encountered\n"); + else + DRM_INFO("iir: %x\n", iir_value); + if (iir_value & WD_FRAME_COMPLETE_INT) { + drm_dbg_kms(&i915->drm, + "frame complete interrupt for wd transcoder\n"); + return; + } +clear_iir: + intel_de_write(i915, WD_IIR(TRANSCODER_WD_0), iir_value); +} diff --git a/drivers/gpu/drm/i915/display/intel_wd.h b/drivers/gpu/drm/i915/display/intel_wd.h new file mode 100644 index 000000000000..2309afa23bb8 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_wd.h @@ -0,0 +1,82 @@ +/* SPDX-License-Identifier: GPL-2.0 + * Copyright © 2021 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author : + * Suraj Kandpal<suraj.kandpal@intel.com> + * Arun Murthy<arun.r.murthy@intel.com> + */ + +#ifndef _INTEL_WD_H +#define _INTEL_WD_H + +#include <drm/drm_crtc.h> +#include <linux/sync_file.h> + +#include "intel_display_types.h" + +#define I915_MAX_WD_TANSCODERS 2 + +struct intel_out_fence_state { + s32 __user *out_fence_ptr; + struct sync_file *sync_file; + int fd; +}; + +struct intel_wd { + struct intel_encoder base; + struct intel_crtc *wd_crtc; + struct intel_out_fence_state *fence_state; + intel_wakeref_t io_wakeref[I915_MAX_WD_TANSCODERS]; + struct intel_connector *attached_connector; + enum transcoder trans; + struct i915_vma *vma; + unsigned long flags; + struct intel_writeback_job *job; + int triggered_cap_mode; + int frame_num; + bool stream_cap; + bool start_capture; + int slicing_strategy; +}; + +struct intel_wd_clk_vals { + u32 cdclk; + u16 link_m; + u16 link_n; +}; + +extern struct sync_file *sync_file_create(struct dma_fence *fence); +static inline struct intel_wd *enc_to_intel_wd(struct intel_encoder *encoder) +{ + return container_of(&encoder->base, struct intel_wd, base.base); +} +void intel_wd_init(struct drm_i915_private *dev_priv, enum transcoder trans); +void intel_wd_enable_capture(struct intel_encoder *encoder, + struct intel_crtc_state *pipe_config, + struct drm_connector_state *conn_state); +void intel_wd_handle_isr(struct drm_i915_private *dev_priv); +void intel_wd_set_vblank_event(struct intel_crtc *crtc, + struct intel_crtc_state *state); +int intel_wd_prepare_out_fence(struct drm_device *dev, + struct drm_atomic_state *state); +void intel_wd_complete_signaling(struct intel_wd *intel_wd); +#endif/* _INTEL_WD_H */ diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 9a86ee88089e..b7e92a18125c 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -38,6 +38,8 @@ #include <linux/pm_qos.h> #include <drm/drm_connector.h> +#include <drm/drm_writeback.h> +#include <drm/i915_mei_hdcp_interface.h> #include <drm/ttm/ttm_device.h> #include "display/intel_bios.h" diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 73cebc6aa650..95a6a8f7a911 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -42,6 +42,7 @@ #include "display/intel_hotplug.h" #include "display/intel_lpe_audio.h" #include "display/intel_psr.h" +#include "display/intel_wd.h" #include "gt/intel_breadcrumbs.h" #include "gt/intel_gt.h" @@ -2342,6 +2343,11 @@ gen8_de_misc_irq_handler(struct drm_i915_private *dev_priv, u32 iir) found = true; } + if (iir & GEN8_DE_MISC_WD0) { + intel_wd_handle_isr(dev_priv); + found = true; + } + if (iir & GEN8_DE_EDP_PSR) { struct intel_encoder *encoder; u32 psr_iir; @@ -3767,7 +3773,7 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) u32 de_pipe_enables; u32 de_port_masked = gen8_de_port_aux_mask(dev_priv); u32 de_port_enables; - u32 de_misc_masked = GEN8_DE_EDP_PSR; + u32 de_misc_masked = GEN8_DE_EDP_PSR | GEN8_DE_MISC_WD0; u32 trans_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | BIT(TRANSCODER_C) | BIT(TRANSCODER_D); enum pipe pipe; diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 67b89769f577..a524e0f030b6 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -853,7 +853,8 @@ static const struct intel_device_info jsl_info = { .display.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D), \ .display.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \ BIT(TRANSCODER_C) | BIT(TRANSCODER_D) | \ - BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1), \ + BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1)| \ + BIT(TRANSCODER_WD_0), \ .pipe_offsets = { \ [TRANSCODER_A] = PIPE_A_OFFSET, \ [TRANSCODER_B] = PIPE_B_OFFSET, \ @@ -861,6 +862,8 @@ static const struct intel_device_info jsl_info = { [TRANSCODER_D] = PIPE_D_OFFSET, \ [TRANSCODER_DSI_0] = PIPE_DSI0_OFFSET, \ [TRANSCODER_DSI_1] = PIPE_DSI1_OFFSET, \ + [TRANSCODER_WD_0] = PIPE_WD0_OFFSET, \ + [TRANSCODER_WD_1] = PIPE_WD1_OFFSET, \ }, \ .trans_offsets = { \ [TRANSCODER_A] = TRANSCODER_A_OFFSET, \ @@ -869,6 +872,8 @@ static const struct intel_device_info jsl_info = { [TRANSCODER_D] = TRANSCODER_D_OFFSET, \ [TRANSCODER_DSI_0] = TRANSCODER_DSI0_OFFSET, \ [TRANSCODER_DSI_1] = TRANSCODER_DSI1_OFFSET, \ + [TRANSCODER_WD_0] = TRANSCODER_WD0_OFFSET, \ + [TRANSCODER_WD_1] = TRANSCODER_WD1_OFFSET, \ }, \ TGL_CURSOR_OFFSETS, \ .has_global_mocs = 1, \ diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 6396afd77209..abc41e7de0b5 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3797,6 +3797,11 @@ #define PIPE_DSI0_OFFSET 0x7b000 #define PIPE_DSI1_OFFSET 0x7b800 +/* WD 0 and 1 */ +#define PIPE_WD0_OFFSET 0x7e000 +#define PIPE_WD1_OFFSET 0x7d000 + + #define PIPECONF(pipe) _MMIO_PIPE2(pipe, _PIPEACONF) #define PIPEDSL(pipe) _MMIO_PIPE2(pipe, _PIPEADSL) #define PIPEFRAME(pipe) _MMIO_PIPE2(pipe, _PIPEAFRAMEHIGH) @@ -4461,6 +4466,10 @@ #define _PIPEDSI0CONF 0x7b008 #define _PIPEDSI1CONF 0x7b808 +/* WD 0 and 1 */ +#define _PIPEWD0CONF 0x7e008 +#define _PIPEWD1CONF 0x7d008 + /* Sprite A control */ #define _DVSACNTR 0x72180 #define DVS_ENABLE REG_BIT(31) @@ -5707,6 +5716,7 @@ #define GEN8_DE_MISC_IER _MMIO(0x4446c) #define GEN8_DE_MISC_GSE (1 << 27) #define GEN8_DE_EDP_PSR (1 << 19) +#define GEN8_DE_MISC_WD0 (1 << 23) #define GEN8_PCU_ISR _MMIO(0x444e0) #define GEN8_PCU_IMR _MMIO(0x444e4) @@ -8847,6 +8857,133 @@ enum skl_power_gate { #define DSB_ENABLE (1 << 31) #define DSB_STATUS (1 << 0) +#define TGL_ROOT_DEVICE_ID 0x9A00 +#define TGL_ROOT_DEVICE_MASK 0xFF00 +#define TGL_ROOT_DEVICE_SKU_MASK 0xF +#define TGL_ROOT_DEVICE_SKU_ULX 0x2 +#define TGL_ROOT_DEVICE_SKU_ULT 0x4 + +/* Gen12 WD */ +#define _MMIO_WD(tc, wd0, wd1) _MMIO_TRANS((tc) - TRANSCODER_WD_0, \ + wd0, wd1) + +#define WD_TRANS_ENABLE (1 << 31) +#define WD_TRANS_DISABLE 0 +#define WD_TRANS_ACTIVE (1 << 30) + +/* WD transcoder control */ +#define _WD_TRANS_FUNC_CTL_0 0x6e400 +#define _WD_TRANS_FUNC_CTL_1 0x6ec00 +#define WD_TRANS_FUNC_CTL(tc) _MMIO_WD(tc,\ + _WD_TRANS_FUNC_CTL_0,\ + _WD_TRANS_FUNC_CTL_1) + +#define TRANS_WD_FUNC_ENABLE (1 << 31) +#define WD_TRIGGERED_CAP_MODE_ENABLE (1 << 30) +#define START_TRIGGER_FRAME (1 << 29) +#define STOP_TRIGGER_FRAME (1 << 28) +#define WD_CTL_POINTER_ETEH (0 << 18) +#define WD_CTL_POINTER_ETDH (1 << 18) +#define WD_CTL_POINTER_DTDH (2 << 18) +#define WD_INPUT_SELECT_MASK (7 << 12) +#define WD_INPUT_PIPE_A (0 << 12) +#define WD_INPUT_PIPE_B (5 << 12) +#define WD_INPUT_PIPE_C (6 << 12) +#define WD_INPUT_PIPE_D (7 << 12) + +#define WD_PIX_FMT_MASK (0x3 << 20) +#define WD_PIX_FMT_YUYV (0x1 << 20) +#define WD_PIX_FMT_XYUV8888 (0x2 << 20) +#define WD_PIX_FMT_XBGR8888 (0x3 << 20) +#define WD_PIX_FMT_Y410 (0x4 << 20) +#define WD_PIX_FMT_YUV422 (0x5 << 20) +#define WD_PIX_FMT_XBGR2101010 (0x6 << 20) +#define WD_PIX_FMT_RGB565 (0x7 << 20) + +#define WD_FRAME_NUMBER_MASK 15 + +#define _WD_STRIDE_0 0x6e510 +#define _WD_STRIDE_1 0x6ed10 +#define WD_STRIDE(tc) _MMIO_WD(tc,\ + _WD_STRIDE_0,\ + _WD_STRIDE_1) +#define WD_STRIDE_SHIFT 6 +#define WD_STRIDE_MASK (0x3ff << WD_STRIDE_SHIFT) + +#define _WD_STREAMCAP_CTL0 0x6e590 +#define _WD_STREAMCAP_CTL1 0x6ed90 +#define WD_STREAMCAP_CTL(tc) _MMIO_WD(tc,\ + _WD_STREAMCAP_CTL0,\ + _WD_STREAMCAP_CTL1) + +#define WD_STREAM_CAP_MODE_EN (1 << 31) +#define WD_STRAT_MASK (3 << 24) +#define WD_SLICING_STRAT_1_1 (0 << 24) +#define WD_SLICING_STRAT_2_1 (1 << 24) +#define WD_SLICING_STRAT_4_1 (2 << 24) +#define WD_SLICING_STRAT_8_1 (3 << 24) +#define WD_STREAM_OVERRUN_STATUS 1 + +#define _WD_SURF_0 0x6e514 +#define _WD_SURF_1 0x6ed14 +#define WD_SURF(tc) _MMIO_WD(tc,\ + _WD_SURF_0,\ + _WD_SURF_1) + +#define _WD_IMR_0 0x6e560 +#define _WD_IMR_1 0x6ed60 +#define WD_IMR(tc) _MMIO_WD(tc,\ + _WD_IMR_0,\ + _WD_IMR_1) +#define WD_FRAME_COMPLETE_INT (1 << 7) +#define WD_GTT_FAULT_INT (1 << 6) +#define WD_VBLANK_INT (1 << 5) +#define WD_OVERRUN_INT (1 << 4) +#define WD_CAPTURING_INT (1 << 3) +#define WD_WRITE_COMPLETE_INT (1 << 2) + +#define _WD_IIR_0 0x6e564 +#define _WD_IIR_1 0x6ed64 +#define WD_IIR(tc) _MMIO_WD(tc,\ + _WD_IIR_0,\ + _WD_IIR_1) + +#define _WD_FRAME_STATUS_0 0x6e56b +#define _WD_FRAME_STATUS_1 0x6ed6b +#define WD_FRAME_STATUS(tc) _MMIO_WD(tc,\ + _WD_FRAME_STATUS_0,\ + _WD_FRAME_STATUS_1) + +#define WD_FRAME_COMPLETE (1 << 31) +#define WD_STATE_IDLE (0 << 24) +#define WD_STATE_CAPSTART (1 << 24) +#define WD_STATE_FRAME_START (2 << 24) +#define WD_STATE_CAPACITIVE (3 << 24) +#define WD_STATE_TG_DONE (4 << 24) +#define WD_STATE_WDX_DONE (5 << 24) +#define WD_STATE_QUICK_CAP (6 << 24) + +#define _WD_27_M_0 0x6e524 +#define _WD_27_M_1 0x6ed24 +#define WD_27_M(tc) _MMIO_WD(tc,\ + _WD_27_M_0,\ + _WD_27_M_1) + +#define _WD_27_N_0 0x6e528 + +//Address looks wrong in bspec: +#define _WD_27_N_1 0x6ec28 +#define WD_27_N(tc) _MMIO_WD(tc,\ + _WD_27_N_0,\ + _WD_27_N_1) + +#define _WD_TAIL_CFG_0 0x6e520 +#define _WD_TAIL_CFG_1 0x6ed20 + +#define WD_TAIL_CFG(tc) _MMIO_WD(tc,\ + _WD_TAIL_CFG_0,\ + _WD_TAIL_CFG_1) + #define CLKREQ_POLICY _MMIO(0x101038) #define CLKREQ_POLICY_MEM_UP_OVRD REG_BIT(1)
Adding support for writeback transcoder to start capturing frames using interrupt mechanism Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/display/intel_acpi.c | 1 + drivers/gpu/drm/i915/display/intel_display.c | 89 +- drivers/gpu/drm/i915/display/intel_display.h | 9 + .../drm/i915/display/intel_display_types.h | 13 + drivers/gpu/drm/i915/display/intel_dpll.c | 3 + drivers/gpu/drm/i915/display/intel_opregion.c | 3 + drivers/gpu/drm/i915/display/intel_wd.c | 978 ++++++++++++++++++ drivers/gpu/drm/i915/display/intel_wd.h | 82 ++ drivers/gpu/drm/i915/i915_drv.h | 2 + drivers/gpu/drm/i915/i915_irq.c | 8 +- drivers/gpu/drm/i915/i915_pci.c | 7 +- drivers/gpu/drm/i915/i915_reg.h | 137 +++ 13 files changed, 1330 insertions(+), 3 deletions(-) create mode 100644 drivers/gpu/drm/i915/display/intel_wd.c create mode 100644 drivers/gpu/drm/i915/display/intel_wd.h