[Intel-gfx] [RFC 1/2] drm/i915: start moving state checker to intel_verify.c
Daniel Vetter
daniel at ffwll.ch
Wed May 15 09:33:31 UTC 2019
On Tue, Apr 16, 2019 at 01:36:02PM +0300, Jani Nikula wrote:
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
> ---
> drivers/gpu/drm/i915/Makefile | 1 +
> drivers/gpu/drm/i915/intel_display.c | 474 +--------------------------
> drivers/gpu/drm/i915/intel_drv.h | 12 +
> drivers/gpu/drm/i915/intel_verify.c | 464 ++++++++++++++++++++++++++
> drivers/gpu/drm/i915/intel_verify.h | 22 ++
> 5 files changed, 510 insertions(+), 463 deletions(-)
> create mode 100644 drivers/gpu/drm/i915/intel_verify.c
> create mode 100644 drivers/gpu/drm/i915/intel_verify.h
>
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index fbcb0904..a000fad 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -166,6 +166,7 @@ i915-y += dvo_ch7017.o \
> intel_panel.o \
> intel_sdvo.o \
> intel_tv.o \
> + intel_verify.o \
> vlv_dsi.o \
> vlv_dsi_pll.o \
> intel_vdsc.o
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 3bd40a..31a931 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -69,6 +69,7 @@
> #include "intel_sdvo.h"
> #include "intel_sprite.h"
> #include "intel_tv.h"
> +#include "intel_verify.h"
>
> /* Primary plane formats for gen <= 3 */
> static const u32 i8xx_primary_formats[] = {
> @@ -1243,7 +1244,7 @@ void assert_pipe(struct drm_i915_private *dev_priv,
> pipe_name(pipe), onoff(state), onoff(cur_state));
> }
>
> -static void assert_plane(struct intel_plane *plane, bool state)
> +void assert_plane(struct intel_plane *plane, bool state)
> {
> enum pipe pipe;
> bool cur_state;
> @@ -6607,45 +6608,6 @@ void intel_encoder_destroy(struct drm_encoder *encoder)
> kfree(intel_encoder);
> }
>
> -/* Cross check the actual hw state with our own modeset state tracking (and it's
> - * internal consistency). */
> -static void intel_connector_verify_state(struct drm_crtc_state *crtc_state,
> - struct drm_connector_state *conn_state)
> -{
> - struct intel_connector *connector = to_intel_connector(conn_state->connector);
> -
> - DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
> - connector->base.base.id,
> - connector->base.name);
> -
> - if (connector->get_hw_state(connector)) {
> - struct intel_encoder *encoder = connector->encoder;
> -
> - I915_STATE_WARN(!crtc_state,
> - "connector enabled without attached crtc\n");
> -
> - if (!crtc_state)
> - return;
> -
> - I915_STATE_WARN(!crtc_state->active,
> - "connector is active, but attached crtc isn't\n");
> -
> - if (!encoder || encoder->type == INTEL_OUTPUT_DP_MST)
> - return;
> -
> - I915_STATE_WARN(conn_state->best_encoder != &encoder->base,
> - "atomic encoder doesn't match attached encoder\n");
> -
> - I915_STATE_WARN(conn_state->crtc != encoder->base.crtc,
> - "attached encoder crtc differs from connector crtc\n");
> - } else {
> - I915_STATE_WARN(crtc_state && crtc_state->active,
> - "attached crtc is active, but connector isn't\n");
> - I915_STATE_WARN(!crtc_state && conn_state->best_encoder,
> - "best encoder set without crtc!\n");
> - }
> -}
> -
> static int pipe_required_fdi_lanes(struct intel_crtc_state *crtc_state)
> {
> if (crtc_state->base.enable && crtc_state->has_pch_encoder)
> @@ -6879,7 +6841,7 @@ static u32 ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config)
> return pixel_rate;
> }
>
> -static void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state)
> +void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state)
> {
> struct drm_i915_private *dev_priv = to_i915(crtc_state->base.crtc->dev);
>
> @@ -11584,9 +11546,9 @@ static const char *output_formats(enum intel_output_format format)
> return output_format_str[format];
> }
>
> -static void intel_dump_pipe_config(struct intel_crtc *crtc,
> - struct intel_crtc_state *pipe_config,
> - const char *context)
> +void intel_dump_pipe_config(struct intel_crtc *crtc,
> + struct intel_crtc_state *pipe_config,
> + const char *context)
> {
> struct drm_device *dev = crtc->base.dev;
> struct drm_i915_private *dev_priv = to_i915(dev);
> @@ -12076,7 +12038,7 @@ static bool fastboot_enabled(struct drm_i915_private *dev_priv)
> return false;
> }
>
> -static bool
> +bool
> intel_pipe_config_compare(struct drm_i915_private *dev_priv,
> struct intel_crtc_state *current_config,
> struct intel_crtc_state *pipe_config,
> @@ -12389,8 +12351,8 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
> return ret;
> }
>
> -static void intel_pipe_config_sanity_check(struct drm_i915_private *dev_priv,
> - const struct intel_crtc_state *pipe_config)
> +void intel_pipe_config_sanity_check(struct drm_i915_private *dev_priv,
> + const struct intel_crtc_state *pipe_config)
> {
> if (pipe_config->has_pch_encoder) {
> int fdi_dotclock = intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config),
> @@ -12407,420 +12369,6 @@ static void intel_pipe_config_sanity_check(struct drm_i915_private *dev_priv,
> }
> }
>
> -static void verify_wm_state(struct drm_crtc *crtc,
> - struct drm_crtc_state *new_state)
> -{
> - struct drm_i915_private *dev_priv = to_i915(crtc->dev);
> - struct skl_hw_state {
> - struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
> - struct skl_ddb_entry ddb_uv[I915_MAX_PLANES];
> - struct skl_ddb_allocation ddb;
> - struct skl_pipe_wm wm;
> - } *hw;
> - struct skl_ddb_allocation *sw_ddb;
> - struct skl_pipe_wm *sw_wm;
> - struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
> - struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> - const enum pipe pipe = intel_crtc->pipe;
> - int plane, level, max_level = ilk_wm_max_level(dev_priv);
> -
> - if (INTEL_GEN(dev_priv) < 9 || !new_state->active)
> - return;
> -
> - hw = kzalloc(sizeof(*hw), GFP_KERNEL);
> - if (!hw)
> - return;
> -
> - skl_pipe_wm_get_hw_state(intel_crtc, &hw->wm);
> - sw_wm = &to_intel_crtc_state(new_state)->wm.skl.optimal;
> -
> - skl_pipe_ddb_get_hw_state(intel_crtc, hw->ddb_y, hw->ddb_uv);
> -
> - skl_ddb_get_hw_state(dev_priv, &hw->ddb);
> - sw_ddb = &dev_priv->wm.skl_hw.ddb;
> -
> - if (INTEL_GEN(dev_priv) >= 11 &&
> - hw->ddb.enabled_slices != sw_ddb->enabled_slices)
> - DRM_ERROR("mismatch in DBUF Slices (expected %u, got %u)\n",
> - sw_ddb->enabled_slices,
> - hw->ddb.enabled_slices);
> -
> - /* planes */
> - for_each_universal_plane(dev_priv, pipe, plane) {
> - struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
> -
> - hw_plane_wm = &hw->wm.planes[plane];
> - sw_plane_wm = &sw_wm->planes[plane];
> -
> - /* Watermarks */
> - for (level = 0; level <= max_level; level++) {
> - if (skl_wm_level_equals(&hw_plane_wm->wm[level],
> - &sw_plane_wm->wm[level]))
> - continue;
> -
> - DRM_ERROR("mismatch in WM pipe %c plane %d level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> - pipe_name(pipe), plane + 1, level,
> - sw_plane_wm->wm[level].plane_en,
> - sw_plane_wm->wm[level].plane_res_b,
> - sw_plane_wm->wm[level].plane_res_l,
> - hw_plane_wm->wm[level].plane_en,
> - hw_plane_wm->wm[level].plane_res_b,
> - hw_plane_wm->wm[level].plane_res_l);
> - }
> -
> - if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
> - &sw_plane_wm->trans_wm)) {
> - DRM_ERROR("mismatch in trans WM pipe %c plane %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> - pipe_name(pipe), plane + 1,
> - sw_plane_wm->trans_wm.plane_en,
> - sw_plane_wm->trans_wm.plane_res_b,
> - sw_plane_wm->trans_wm.plane_res_l,
> - hw_plane_wm->trans_wm.plane_en,
> - hw_plane_wm->trans_wm.plane_res_b,
> - hw_plane_wm->trans_wm.plane_res_l);
> - }
> -
> - /* DDB */
> - hw_ddb_entry = &hw->ddb_y[plane];
> - sw_ddb_entry = &to_intel_crtc_state(new_state)->wm.skl.plane_ddb_y[plane];
> -
> - if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
> - DRM_ERROR("mismatch in DDB state pipe %c plane %d (expected (%u,%u), found (%u,%u))\n",
> - pipe_name(pipe), plane + 1,
> - sw_ddb_entry->start, sw_ddb_entry->end,
> - hw_ddb_entry->start, hw_ddb_entry->end);
> - }
> - }
> -
> - /*
> - * cursor
> - * If the cursor plane isn't active, we may not have updated it's ddb
> - * allocation. In that case since the ddb allocation will be updated
> - * once the plane becomes visible, we can skip this check
> - */
> - if (1) {
> - struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
> -
> - hw_plane_wm = &hw->wm.planes[PLANE_CURSOR];
> - sw_plane_wm = &sw_wm->planes[PLANE_CURSOR];
> -
> - /* Watermarks */
> - for (level = 0; level <= max_level; level++) {
> - if (skl_wm_level_equals(&hw_plane_wm->wm[level],
> - &sw_plane_wm->wm[level]))
> - continue;
> -
> - DRM_ERROR("mismatch in WM pipe %c cursor level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> - pipe_name(pipe), level,
> - sw_plane_wm->wm[level].plane_en,
> - sw_plane_wm->wm[level].plane_res_b,
> - sw_plane_wm->wm[level].plane_res_l,
> - hw_plane_wm->wm[level].plane_en,
> - hw_plane_wm->wm[level].plane_res_b,
> - hw_plane_wm->wm[level].plane_res_l);
> - }
> -
> - if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
> - &sw_plane_wm->trans_wm)) {
> - DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> - pipe_name(pipe),
> - sw_plane_wm->trans_wm.plane_en,
> - sw_plane_wm->trans_wm.plane_res_b,
> - sw_plane_wm->trans_wm.plane_res_l,
> - hw_plane_wm->trans_wm.plane_en,
> - hw_plane_wm->trans_wm.plane_res_b,
> - hw_plane_wm->trans_wm.plane_res_l);
> - }
> -
> - /* DDB */
> - hw_ddb_entry = &hw->ddb_y[PLANE_CURSOR];
> - sw_ddb_entry = &to_intel_crtc_state(new_state)->wm.skl.plane_ddb_y[PLANE_CURSOR];
> -
> - if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
> - DRM_ERROR("mismatch in DDB state pipe %c cursor (expected (%u,%u), found (%u,%u))\n",
> - pipe_name(pipe),
> - sw_ddb_entry->start, sw_ddb_entry->end,
> - hw_ddb_entry->start, hw_ddb_entry->end);
> - }
> - }
> -
> - kfree(hw);
> -}
> -
> -static void
> -verify_connector_state(struct drm_device *dev,
> - struct drm_atomic_state *state,
> - struct drm_crtc *crtc)
> -{
> - struct drm_connector *connector;
> - struct drm_connector_state *new_conn_state;
> - int i;
> -
> - for_each_new_connector_in_state(state, connector, new_conn_state, i) {
> - struct drm_encoder *encoder = connector->encoder;
> - struct drm_crtc_state *crtc_state = NULL;
> -
> - if (new_conn_state->crtc != crtc)
> - continue;
> -
> - if (crtc)
> - crtc_state = drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);
> -
> - intel_connector_verify_state(crtc_state, new_conn_state);
> -
> - I915_STATE_WARN(new_conn_state->best_encoder != encoder,
> - "connector's atomic encoder doesn't match legacy encoder\n");
> - }
> -}
> -
> -static void
> -verify_encoder_state(struct drm_device *dev, struct drm_atomic_state *state)
> -{
> - struct intel_encoder *encoder;
> - struct drm_connector *connector;
> - struct drm_connector_state *old_conn_state, *new_conn_state;
> - int i;
> -
> - for_each_intel_encoder(dev, encoder) {
> - bool enabled = false, found = false;
> - enum pipe pipe;
> -
> - DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
> - encoder->base.base.id,
> - encoder->base.name);
> -
> - for_each_oldnew_connector_in_state(state, connector, old_conn_state,
> - new_conn_state, i) {
> - if (old_conn_state->best_encoder == &encoder->base)
> - found = true;
> -
> - if (new_conn_state->best_encoder != &encoder->base)
> - continue;
> - found = enabled = true;
> -
> - I915_STATE_WARN(new_conn_state->crtc !=
> - encoder->base.crtc,
> - "connector's crtc doesn't match encoder crtc\n");
> - }
> -
> - if (!found)
> - continue;
> -
> - I915_STATE_WARN(!!encoder->base.crtc != enabled,
> - "encoder's enabled state mismatch "
> - "(expected %i, found %i)\n",
> - !!encoder->base.crtc, enabled);
> -
> - if (!encoder->base.crtc) {
> - bool active;
> -
> - active = encoder->get_hw_state(encoder, &pipe);
> - I915_STATE_WARN(active,
> - "encoder detached but still enabled on pipe %c.\n",
> - pipe_name(pipe));
> - }
> - }
> -}
> -
> -static void
> -verify_crtc_state(struct drm_crtc *crtc,
> - struct drm_crtc_state *old_crtc_state,
> - struct drm_crtc_state *new_crtc_state)
> -{
> - struct drm_device *dev = crtc->dev;
> - struct drm_i915_private *dev_priv = to_i915(dev);
> - struct intel_encoder *encoder;
> - struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> - struct intel_crtc_state *pipe_config, *sw_config;
> - struct drm_atomic_state *old_state;
> - bool active;
> -
> - old_state = old_crtc_state->state;
> - __drm_atomic_helper_crtc_destroy_state(old_crtc_state);
> - pipe_config = to_intel_crtc_state(old_crtc_state);
> - memset(pipe_config, 0, sizeof(*pipe_config));
> - pipe_config->base.crtc = crtc;
> - pipe_config->base.state = old_state;
> -
> - DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
> -
> - active = dev_priv->display.get_pipe_config(intel_crtc, pipe_config);
> -
> - /* we keep both pipes enabled on 830 */
> - if (IS_I830(dev_priv))
> - active = new_crtc_state->active;
> -
> - I915_STATE_WARN(new_crtc_state->active != active,
> - "crtc active state doesn't match with hw state "
> - "(expected %i, found %i)\n", new_crtc_state->active, active);
> -
> - I915_STATE_WARN(intel_crtc->active != new_crtc_state->active,
> - "transitional active state does not match atomic hw state "
> - "(expected %i, found %i)\n", new_crtc_state->active, intel_crtc->active);
> -
> - for_each_encoder_on_crtc(dev, crtc, encoder) {
> - enum pipe pipe;
> -
> - active = encoder->get_hw_state(encoder, &pipe);
> - I915_STATE_WARN(active != new_crtc_state->active,
> - "[ENCODER:%i] active %i with crtc active %i\n",
> - encoder->base.base.id, active, new_crtc_state->active);
> -
> - I915_STATE_WARN(active && intel_crtc->pipe != pipe,
> - "Encoder connected to wrong pipe %c\n",
> - pipe_name(pipe));
> -
> - if (active)
> - encoder->get_config(encoder, pipe_config);
> - }
> -
> - intel_crtc_compute_pixel_rate(pipe_config);
> -
> - if (!new_crtc_state->active)
> - return;
> -
> - intel_pipe_config_sanity_check(dev_priv, pipe_config);
> -
> - sw_config = to_intel_crtc_state(new_crtc_state);
> - if (!intel_pipe_config_compare(dev_priv, sw_config,
> - pipe_config, false)) {
> - I915_STATE_WARN(1, "pipe state doesn't match!\n");
> - intel_dump_pipe_config(intel_crtc, pipe_config,
> - "[hw state]");
> - intel_dump_pipe_config(intel_crtc, sw_config,
> - "[sw state]");
> - }
> -}
> -
> -static void
> -intel_verify_planes(struct intel_atomic_state *state)
> -{
> - struct intel_plane *plane;
> - const struct intel_plane_state *plane_state;
> - int i;
> -
> - for_each_new_intel_plane_in_state(state, plane,
> - plane_state, i)
> - assert_plane(plane, plane_state->slave ||
> - plane_state->base.visible);
> -}
> -
> -static void
> -verify_single_dpll_state(struct drm_i915_private *dev_priv,
> - struct intel_shared_dpll *pll,
> - struct drm_crtc *crtc,
> - struct drm_crtc_state *new_state)
> -{
> - struct intel_dpll_hw_state dpll_hw_state;
> - unsigned int crtc_mask;
> - bool active;
> -
> - memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
> -
> - DRM_DEBUG_KMS("%s\n", pll->info->name);
> -
> - active = pll->info->funcs->get_hw_state(dev_priv, pll, &dpll_hw_state);
> -
> - if (!(pll->info->flags & INTEL_DPLL_ALWAYS_ON)) {
> - I915_STATE_WARN(!pll->on && pll->active_mask,
> - "pll in active use but not on in sw tracking\n");
> - I915_STATE_WARN(pll->on && !pll->active_mask,
> - "pll is on but not used by any active crtc\n");
> - I915_STATE_WARN(pll->on != active,
> - "pll on state mismatch (expected %i, found %i)\n",
> - pll->on, active);
> - }
> -
> - if (!crtc) {
> - I915_STATE_WARN(pll->active_mask & ~pll->state.crtc_mask,
> - "more active pll users than references: %x vs %x\n",
> - pll->active_mask, pll->state.crtc_mask);
> -
> - return;
> - }
> -
> - crtc_mask = drm_crtc_mask(crtc);
> -
> - if (new_state->active)
> - I915_STATE_WARN(!(pll->active_mask & crtc_mask),
> - "pll active mismatch (expected pipe %c in active mask 0x%02x)\n",
> - pipe_name(drm_crtc_index(crtc)), pll->active_mask);
> - else
> - I915_STATE_WARN(pll->active_mask & crtc_mask,
> - "pll active mismatch (didn't expect pipe %c in active mask 0x%02x)\n",
> - pipe_name(drm_crtc_index(crtc)), pll->active_mask);
> -
> - I915_STATE_WARN(!(pll->state.crtc_mask & crtc_mask),
> - "pll enabled crtcs mismatch (expected 0x%x in 0x%02x)\n",
> - crtc_mask, pll->state.crtc_mask);
> -
> - I915_STATE_WARN(pll->on && memcmp(&pll->state.hw_state,
> - &dpll_hw_state,
> - sizeof(dpll_hw_state)),
> - "pll hw state mismatch\n");
> -}
> -
> -static void
> -verify_shared_dpll_state(struct drm_device *dev, struct drm_crtc *crtc,
> - struct drm_crtc_state *old_crtc_state,
> - struct drm_crtc_state *new_crtc_state)
> -{
> - struct drm_i915_private *dev_priv = to_i915(dev);
> - struct intel_crtc_state *old_state = to_intel_crtc_state(old_crtc_state);
> - struct intel_crtc_state *new_state = to_intel_crtc_state(new_crtc_state);
> -
> - if (new_state->shared_dpll)
> - verify_single_dpll_state(dev_priv, new_state->shared_dpll, crtc, new_crtc_state);
> -
> - if (old_state->shared_dpll &&
> - old_state->shared_dpll != new_state->shared_dpll) {
> - unsigned int crtc_mask = drm_crtc_mask(crtc);
> - struct intel_shared_dpll *pll = old_state->shared_dpll;
> -
> - I915_STATE_WARN(pll->active_mask & crtc_mask,
> - "pll active mismatch (didn't expect pipe %c in active mask)\n",
> - pipe_name(drm_crtc_index(crtc)));
> - I915_STATE_WARN(pll->state.crtc_mask & crtc_mask,
> - "pll enabled crtcs mismatch (found %x in enabled mask)\n",
> - pipe_name(drm_crtc_index(crtc)));
> - }
> -}
> -
> -static void
> -intel_modeset_verify_crtc(struct drm_crtc *crtc,
> - struct drm_atomic_state *state,
> - struct drm_crtc_state *old_state,
> - struct drm_crtc_state *new_state)
> -{
> - if (!needs_modeset(new_state) &&
> - !to_intel_crtc_state(new_state)->update_pipe)
> - return;
> -
> - verify_wm_state(crtc, new_state);
> - verify_connector_state(crtc->dev, state, crtc);
> - verify_crtc_state(crtc, old_state, new_state);
> - verify_shared_dpll_state(crtc->dev, crtc, old_state, new_state);
> -}
> -
> -static void
> -verify_disabled_dpll_state(struct drm_device *dev)
> -{
> - struct drm_i915_private *dev_priv = to_i915(dev);
> - int i;
> -
> - for (i = 0; i < dev_priv->num_shared_dpll; i++)
> - verify_single_dpll_state(dev_priv, &dev_priv->shared_dplls[i], NULL, NULL);
> -}
> -
> -static void
> -intel_modeset_verify_disabled(struct drm_device *dev,
> - struct drm_atomic_state *state)
> -{
> - verify_encoder_state(dev, state);
> - verify_connector_state(dev, state, NULL);
> - verify_disabled_dpll_state(dev);
> -}
> -
> static void update_scanline_offset(const struct intel_crtc_state *crtc_state)
> {
> struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
> @@ -13521,7 +13069,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
> if (!intel_can_enable_sagv(state))
> intel_disable_sagv(dev_priv);
>
> - intel_modeset_verify_disabled(dev, state);
> + intel_verify_modeset_disabled(dev, state);
> }
I think we should take this opportunity to slightly clean up the interface
here, and align a bit with
drm_atomic_helper_commit_modeset_enables/disables from helpers. So
rename this function here to
intel_verify_modeset_disables(dev, state)
so the naming is a bit clearer - it took me a while what exactly _disabled
here means: Is the verifier disabled, or the modeset is disabled or what
exactly. I think the idea of "modeset_disables" as a phase of an atomic
commit is better established.
>
> /* Complete the events for pipes that have now been disabled */
> @@ -13589,7 +13137,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
> if (put_domains[i])
> modeset_put_power_domains(dev_priv, put_domains[i]);
>
> - intel_modeset_verify_crtc(crtc, state, old_crtc_state, new_crtc_state);
> + intel_verify_modeset_crtc(crtc, state, old_crtc_state, new_crtc_state);
> }
Same here, create a new
intel_verify_modeset_enables(dev, state)
which combines the crtc and plan checks (the additional loop wont matter),
and neatly aligns with the idea of a "modeset_enables" phase from atomic
helpers.
With that I think we'll have some really tidy interface into
intel_verify.c, and your patch here has my Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
Cheers, Daniel
>
> if (intel_state->modeset)
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index a38b9c..77767c 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1668,6 +1668,17 @@ int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
> enum pipe pipe);
> +void intel_pipe_config_sanity_check(struct drm_i915_private *dev_priv,
> + const struct intel_crtc_state *pipe_config);
> +bool
> +intel_pipe_config_compare(struct drm_i915_private *dev_priv,
> + struct intel_crtc_state *current_config,
> + struct intel_crtc_state *pipe_config,
> + bool adjust);
> +void intel_dump_pipe_config(struct intel_crtc *crtc,
> + struct intel_crtc_state *pipe_config,
> + const char *context);
> +void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state);
> static inline bool
> intel_crtc_has_type(const struct intel_crtc_state *crtc_state,
> enum intel_output_type type)
> @@ -1760,6 +1771,7 @@ void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
> void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
> #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
> #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
> +void assert_plane(struct intel_plane *plane, bool state);
> void intel_prepare_reset(struct drm_i915_private *dev_priv);
> void intel_finish_reset(struct drm_i915_private *dev_priv);
> void hsw_enable_pc8(struct drm_i915_private *dev_priv);
> diff --git a/drivers/gpu/drm/i915/intel_verify.c b/drivers/gpu/drm/i915/intel_verify.c
> new file mode 100644
> index 000000..4c8990
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/intel_verify.c
> @@ -0,0 +1,464 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2019 Intel Corporation
> + */
> +
> +#include <drm/drm_atomic_state_helper.h>
> +
> +#include "i915_drv.h"
> +#include "intel_drv.h"
> +#include "intel_pm.h"
> +#include "intel_verify.h"
> +
> +static void verify_wm_state(struct drm_crtc *crtc,
> + struct drm_crtc_state *new_state)
> +{
> + struct drm_i915_private *dev_priv = to_i915(crtc->dev);
> + struct skl_hw_state {
> + struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
> + struct skl_ddb_entry ddb_uv[I915_MAX_PLANES];
> + struct skl_ddb_allocation ddb;
> + struct skl_pipe_wm wm;
> + } *hw;
> + struct skl_ddb_allocation *sw_ddb;
> + struct skl_pipe_wm *sw_wm;
> + struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
> + struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> + const enum pipe pipe = intel_crtc->pipe;
> + int plane, level, max_level = ilk_wm_max_level(dev_priv);
> +
> + if (INTEL_GEN(dev_priv) < 9 || !new_state->active)
> + return;
> +
> + hw = kzalloc(sizeof(*hw), GFP_KERNEL);
> + if (!hw)
> + return;
> +
> + skl_pipe_wm_get_hw_state(intel_crtc, &hw->wm);
> + sw_wm = &to_intel_crtc_state(new_state)->wm.skl.optimal;
> +
> + skl_pipe_ddb_get_hw_state(intel_crtc, hw->ddb_y, hw->ddb_uv);
> +
> + skl_ddb_get_hw_state(dev_priv, &hw->ddb);
> + sw_ddb = &dev_priv->wm.skl_hw.ddb;
> +
> + if (INTEL_GEN(dev_priv) >= 11 &&
> + hw->ddb.enabled_slices != sw_ddb->enabled_slices)
> + DRM_ERROR("mismatch in DBUF Slices (expected %u, got %u)\n",
> + sw_ddb->enabled_slices,
> + hw->ddb.enabled_slices);
> +
> + /* planes */
> + for_each_universal_plane(dev_priv, pipe, plane) {
> + struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
> +
> + hw_plane_wm = &hw->wm.planes[plane];
> + sw_plane_wm = &sw_wm->planes[plane];
> +
> + /* Watermarks */
> + for (level = 0; level <= max_level; level++) {
> + if (skl_wm_level_equals(&hw_plane_wm->wm[level],
> + &sw_plane_wm->wm[level]))
> + continue;
> +
> + DRM_ERROR("mismatch in WM pipe %c plane %d level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> + pipe_name(pipe), plane + 1, level,
> + sw_plane_wm->wm[level].plane_en,
> + sw_plane_wm->wm[level].plane_res_b,
> + sw_plane_wm->wm[level].plane_res_l,
> + hw_plane_wm->wm[level].plane_en,
> + hw_plane_wm->wm[level].plane_res_b,
> + hw_plane_wm->wm[level].plane_res_l);
> + }
> +
> + if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
> + &sw_plane_wm->trans_wm)) {
> + DRM_ERROR("mismatch in trans WM pipe %c plane %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> + pipe_name(pipe), plane + 1,
> + sw_plane_wm->trans_wm.plane_en,
> + sw_plane_wm->trans_wm.plane_res_b,
> + sw_plane_wm->trans_wm.plane_res_l,
> + hw_plane_wm->trans_wm.plane_en,
> + hw_plane_wm->trans_wm.plane_res_b,
> + hw_plane_wm->trans_wm.plane_res_l);
> + }
> +
> + /* DDB */
> + hw_ddb_entry = &hw->ddb_y[plane];
> + sw_ddb_entry = &to_intel_crtc_state(new_state)->wm.skl.plane_ddb_y[plane];
> +
> + if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
> + DRM_ERROR("mismatch in DDB state pipe %c plane %d (expected (%u,%u), found (%u,%u))\n",
> + pipe_name(pipe), plane + 1,
> + sw_ddb_entry->start, sw_ddb_entry->end,
> + hw_ddb_entry->start, hw_ddb_entry->end);
> + }
> + }
> +
> + /*
> + * cursor
> + * If the cursor plane isn't active, we may not have updated it's ddb
> + * allocation. In that case since the ddb allocation will be updated
> + * once the plane becomes visible, we can skip this check
> + */
> + if (1) {
> + struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
> +
> + hw_plane_wm = &hw->wm.planes[PLANE_CURSOR];
> + sw_plane_wm = &sw_wm->planes[PLANE_CURSOR];
> +
> + /* Watermarks */
> + for (level = 0; level <= max_level; level++) {
> + if (skl_wm_level_equals(&hw_plane_wm->wm[level],
> + &sw_plane_wm->wm[level]))
> + continue;
> +
> + DRM_ERROR("mismatch in WM pipe %c cursor level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> + pipe_name(pipe), level,
> + sw_plane_wm->wm[level].plane_en,
> + sw_plane_wm->wm[level].plane_res_b,
> + sw_plane_wm->wm[level].plane_res_l,
> + hw_plane_wm->wm[level].plane_en,
> + hw_plane_wm->wm[level].plane_res_b,
> + hw_plane_wm->wm[level].plane_res_l);
> + }
> +
> + if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
> + &sw_plane_wm->trans_wm)) {
> + DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> + pipe_name(pipe),
> + sw_plane_wm->trans_wm.plane_en,
> + sw_plane_wm->trans_wm.plane_res_b,
> + sw_plane_wm->trans_wm.plane_res_l,
> + hw_plane_wm->trans_wm.plane_en,
> + hw_plane_wm->trans_wm.plane_res_b,
> + hw_plane_wm->trans_wm.plane_res_l);
> + }
> +
> + /* DDB */
> + hw_ddb_entry = &hw->ddb_y[PLANE_CURSOR];
> + sw_ddb_entry = &to_intel_crtc_state(new_state)->wm.skl.plane_ddb_y[PLANE_CURSOR];
> +
> + if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
> + DRM_ERROR("mismatch in DDB state pipe %c cursor (expected (%u,%u), found (%u,%u))\n",
> + pipe_name(pipe),
> + sw_ddb_entry->start, sw_ddb_entry->end,
> + hw_ddb_entry->start, hw_ddb_entry->end);
> + }
> + }
> +
> + kfree(hw);
> +}
> +
> +/* Cross check the actual hw state with our own modeset state tracking (and it's
> + * internal consistency). */
> +static void intel_connector_verify_state(struct drm_crtc_state *crtc_state,
> + struct drm_connector_state *conn_state)
> +{
> + struct intel_connector *connector = to_intel_connector(conn_state->connector);
> +
> + DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
> + connector->base.base.id,
> + connector->base.name);
> +
> + if (connector->get_hw_state(connector)) {
> + struct intel_encoder *encoder = connector->encoder;
> +
> + I915_STATE_WARN(!crtc_state,
> + "connector enabled without attached crtc\n");
> +
> + if (!crtc_state)
> + return;
> +
> + I915_STATE_WARN(!crtc_state->active,
> + "connector is active, but attached crtc isn't\n");
> +
> + if (!encoder || encoder->type == INTEL_OUTPUT_DP_MST)
> + return;
> +
> + I915_STATE_WARN(conn_state->best_encoder != &encoder->base,
> + "atomic encoder doesn't match attached encoder\n");
> +
> + I915_STATE_WARN(conn_state->crtc != encoder->base.crtc,
> + "attached encoder crtc differs from connector crtc\n");
> + } else {
> + I915_STATE_WARN(crtc_state && crtc_state->active,
> + "attached crtc is active, but connector isn't\n");
> + I915_STATE_WARN(!crtc_state && conn_state->best_encoder,
> + "best encoder set without crtc!\n");
> + }
> +}
> +
> +static void
> +verify_connector_state(struct drm_device *dev,
> + struct drm_atomic_state *state,
> + struct drm_crtc *crtc)
> +{
> + struct drm_connector *connector;
> + struct drm_connector_state *new_conn_state;
> + int i;
> +
> + for_each_new_connector_in_state(state, connector, new_conn_state, i) {
> + struct drm_encoder *encoder = connector->encoder;
> + struct drm_crtc_state *crtc_state = NULL;
> +
> + if (new_conn_state->crtc != crtc)
> + continue;
> +
> + if (crtc)
> + crtc_state = drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);
> +
> + intel_connector_verify_state(crtc_state, new_conn_state);
> +
> + I915_STATE_WARN(new_conn_state->best_encoder != encoder,
> + "connector's atomic encoder doesn't match legacy encoder\n");
> + }
> +}
> +
> +static void
> +verify_encoder_state(struct drm_device *dev, struct drm_atomic_state *state)
> +{
> + struct intel_encoder *encoder;
> + struct drm_connector *connector;
> + struct drm_connector_state *old_conn_state, *new_conn_state;
> + int i;
> +
> + for_each_intel_encoder(dev, encoder) {
> + bool enabled = false, found = false;
> + enum pipe pipe;
> +
> + DRM_DEBUG_KMS("[ENCODER:%d:%s]\n",
> + encoder->base.base.id,
> + encoder->base.name);
> +
> + for_each_oldnew_connector_in_state(state, connector, old_conn_state,
> + new_conn_state, i) {
> + if (old_conn_state->best_encoder == &encoder->base)
> + found = true;
> +
> + if (new_conn_state->best_encoder != &encoder->base)
> + continue;
> + found = enabled = true;
> +
> + I915_STATE_WARN(new_conn_state->crtc !=
> + encoder->base.crtc,
> + "connector's crtc doesn't match encoder crtc\n");
> + }
> +
> + if (!found)
> + continue;
> +
> + I915_STATE_WARN(!!encoder->base.crtc != enabled,
> + "encoder's enabled state mismatch "
> + "(expected %i, found %i)\n",
> + !!encoder->base.crtc, enabled);
> +
> + if (!encoder->base.crtc) {
> + bool active;
> +
> + active = encoder->get_hw_state(encoder, &pipe);
> + I915_STATE_WARN(active,
> + "encoder detached but still enabled on pipe %c.\n",
> + pipe_name(pipe));
> + }
> + }
> +}
> +
> +static void
> +verify_crtc_state(struct drm_crtc *crtc,
> + struct drm_crtc_state *old_crtc_state,
> + struct drm_crtc_state *new_crtc_state)
> +{
> + struct drm_device *dev = crtc->dev;
> + struct drm_i915_private *dev_priv = to_i915(dev);
> + struct intel_encoder *encoder;
> + struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> + struct intel_crtc_state *pipe_config, *sw_config;
> + struct drm_atomic_state *old_state;
> + bool active;
> +
> + old_state = old_crtc_state->state;
> + __drm_atomic_helper_crtc_destroy_state(old_crtc_state);
> + pipe_config = to_intel_crtc_state(old_crtc_state);
> + memset(pipe_config, 0, sizeof(*pipe_config));
> + pipe_config->base.crtc = crtc;
> + pipe_config->base.state = old_state;
> +
> + DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
> +
> + active = dev_priv->display.get_pipe_config(intel_crtc, pipe_config);
> +
> + /* we keep both pipes enabled on 830 */
> + if (IS_I830(dev_priv))
> + active = new_crtc_state->active;
> +
> + I915_STATE_WARN(new_crtc_state->active != active,
> + "crtc active state doesn't match with hw state "
> + "(expected %i, found %i)\n", new_crtc_state->active, active);
> +
> + I915_STATE_WARN(intel_crtc->active != new_crtc_state->active,
> + "transitional active state does not match atomic hw state "
> + "(expected %i, found %i)\n", new_crtc_state->active, intel_crtc->active);
> +
> + for_each_encoder_on_crtc(dev, crtc, encoder) {
> + enum pipe pipe;
> +
> + active = encoder->get_hw_state(encoder, &pipe);
> + I915_STATE_WARN(active != new_crtc_state->active,
> + "[ENCODER:%i] active %i with crtc active %i\n",
> + encoder->base.base.id, active, new_crtc_state->active);
> +
> + I915_STATE_WARN(active && intel_crtc->pipe != pipe,
> + "Encoder connected to wrong pipe %c\n",
> + pipe_name(pipe));
> +
> + if (active)
> + encoder->get_config(encoder, pipe_config);
> + }
> +
> + intel_crtc_compute_pixel_rate(pipe_config);
> +
> + if (!new_crtc_state->active)
> + return;
> +
> + intel_pipe_config_sanity_check(dev_priv, pipe_config);
> +
> + sw_config = to_intel_crtc_state(new_crtc_state);
> + if (!intel_pipe_config_compare(dev_priv, sw_config,
> + pipe_config, false)) {
> + I915_STATE_WARN(1, "pipe state doesn't match!\n");
> + intel_dump_pipe_config(intel_crtc, pipe_config,
> + "[hw state]");
> + intel_dump_pipe_config(intel_crtc, sw_config,
> + "[sw state]");
> + }
> +}
> +
> +void
> +intel_verify_planes(struct intel_atomic_state *state)
> +{
> + struct intel_plane *plane;
> + const struct intel_plane_state *plane_state;
> + int i;
> +
> + for_each_new_intel_plane_in_state(state, plane,
> + plane_state, i)
> + assert_plane(plane, plane_state->slave ||
> + plane_state->base.visible);
> +}
> +
> +static void
> +verify_single_dpll_state(struct drm_i915_private *dev_priv,
> + struct intel_shared_dpll *pll,
> + struct drm_crtc *crtc,
> + struct drm_crtc_state *new_state)
> +{
> + struct intel_dpll_hw_state dpll_hw_state;
> + unsigned int crtc_mask;
> + bool active;
> +
> + memset(&dpll_hw_state, 0, sizeof(dpll_hw_state));
> +
> + DRM_DEBUG_KMS("%s\n", pll->info->name);
> +
> + active = pll->info->funcs->get_hw_state(dev_priv, pll, &dpll_hw_state);
> +
> + if (!(pll->info->flags & INTEL_DPLL_ALWAYS_ON)) {
> + I915_STATE_WARN(!pll->on && pll->active_mask,
> + "pll in active use but not on in sw tracking\n");
> + I915_STATE_WARN(pll->on && !pll->active_mask,
> + "pll is on but not used by any active crtc\n");
> + I915_STATE_WARN(pll->on != active,
> + "pll on state mismatch (expected %i, found %i)\n",
> + pll->on, active);
> + }
> +
> + if (!crtc) {
> + I915_STATE_WARN(pll->active_mask & ~pll->state.crtc_mask,
> + "more active pll users than references: %x vs %x\n",
> + pll->active_mask, pll->state.crtc_mask);
> +
> + return;
> + }
> +
> + crtc_mask = drm_crtc_mask(crtc);
> +
> + if (new_state->active)
> + I915_STATE_WARN(!(pll->active_mask & crtc_mask),
> + "pll active mismatch (expected pipe %c in active mask 0x%02x)\n",
> + pipe_name(drm_crtc_index(crtc)), pll->active_mask);
> + else
> + I915_STATE_WARN(pll->active_mask & crtc_mask,
> + "pll active mismatch (didn't expect pipe %c in active mask 0x%02x)\n",
> + pipe_name(drm_crtc_index(crtc)), pll->active_mask);
> +
> + I915_STATE_WARN(!(pll->state.crtc_mask & crtc_mask),
> + "pll enabled crtcs mismatch (expected 0x%x in 0x%02x)\n",
> + crtc_mask, pll->state.crtc_mask);
> +
> + I915_STATE_WARN(pll->on && memcmp(&pll->state.hw_state,
> + &dpll_hw_state,
> + sizeof(dpll_hw_state)),
> + "pll hw state mismatch\n");
> +}
> +
> +static void
> +verify_shared_dpll_state(struct drm_device *dev, struct drm_crtc *crtc,
> + struct drm_crtc_state *old_crtc_state,
> + struct drm_crtc_state *new_crtc_state)
> +{
> + struct drm_i915_private *dev_priv = to_i915(dev);
> + struct intel_crtc_state *old_state = to_intel_crtc_state(old_crtc_state);
> + struct intel_crtc_state *new_state = to_intel_crtc_state(new_crtc_state);
> +
> + if (new_state->shared_dpll)
> + verify_single_dpll_state(dev_priv, new_state->shared_dpll, crtc, new_crtc_state);
> +
> + if (old_state->shared_dpll &&
> + old_state->shared_dpll != new_state->shared_dpll) {
> + unsigned int crtc_mask = drm_crtc_mask(crtc);
> + struct intel_shared_dpll *pll = old_state->shared_dpll;
> +
> + I915_STATE_WARN(pll->active_mask & crtc_mask,
> + "pll active mismatch (didn't expect pipe %c in active mask)\n",
> + pipe_name(drm_crtc_index(crtc)));
> + I915_STATE_WARN(pll->state.crtc_mask & crtc_mask,
> + "pll enabled crtcs mismatch (found %x in enabled mask)\n",
> + pipe_name(drm_crtc_index(crtc)));
> + }
> +}
> +
> +void
> +intel_verify_modeset_crtc(struct drm_crtc *crtc,
> + struct drm_atomic_state *state,
> + struct drm_crtc_state *old_state,
> + struct drm_crtc_state *new_state)
> +{
> + if (!drm_atomic_crtc_needs_modeset(new_state) &&
> + !to_intel_crtc_state(new_state)->update_pipe)
> + return;
> +
> + verify_wm_state(crtc, new_state);
> + verify_connector_state(crtc->dev, state, crtc);
> + verify_crtc_state(crtc, old_state, new_state);
> + verify_shared_dpll_state(crtc->dev, crtc, old_state, new_state);
> +}
> +
> +static void
> +verify_disabled_dpll_state(struct drm_device *dev)
> +{
> + struct drm_i915_private *dev_priv = to_i915(dev);
> + int i;
> +
> + for (i = 0; i < dev_priv->num_shared_dpll; i++)
> + verify_single_dpll_state(dev_priv, &dev_priv->shared_dplls[i], NULL, NULL);
> +}
> +
> +void
> +intel_verify_modeset_disabled(struct drm_device *dev,
> + struct drm_atomic_state *state)
> +{
> + verify_encoder_state(dev, state);
> + verify_connector_state(dev, state, NULL);
> + verify_disabled_dpll_state(dev);
> +}
> diff --git a/drivers/gpu/drm/i915/intel_verify.h b/drivers/gpu/drm/i915/intel_verify.h
> new file mode 100644
> index 000000..4b751ea
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/intel_verify.h
> @@ -0,0 +1,22 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2019 Intel Corporation
> + */
> +
> +#ifndef __INTEL_VERIFY_H__
> +#define __INTEL_VERIFY_H__
> +
> +struct drm_atomic_state;
> +struct drm_crtc;
> +struct drm_crtc_state;
> +struct drm_device;
> +
> +void intel_verify_modeset_crtc(struct drm_crtc *crtc,
> + struct drm_atomic_state *state,
> + struct drm_crtc_state *old_state,
> + struct drm_crtc_state *new_state);
> +void intel_verify_modeset_disabled(struct drm_device *dev,
> + struct drm_atomic_state *state);
> +void intel_verify_planes(struct intel_atomic_state *state);
> +
> +#endif /* __INTEL_VERIFY_H__ */
> --
> 2.20.1
>
> _______________________________________________
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> Intel-gfx at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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