From ee5e5e7a5e0fdeca5add8de6314b1f0a62604bdf Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Mon, 8 Jan 2018 14:55:39 -0500 Subject: drm/i915: Add HDCP framework + base implementation This patch adds the framework required to add HDCP support to intel connectors. It implements Aksv loading from fuse, and parts 1/2/3 of the HDCP authentication scheme. Note that without shim implementations, this does not actually implement HDCP. That will come in subsequent patches. Changes in v2: - Don't open code wait_fors (Chris) - drm_hdcp.c under MIT license (Daniel) - Move intel_hdcp_disable() call above ddi_disable (Ram) - Fix // comments (I wore a cone of shame for 12 hours to atone) (Daniel) - Justify intel_hdcp_shim with comments (Daniel) - Fixed async locking issues by adding hdcp_mutex (Daniel) - Don't alter connector_state in enable/disable (Daniel) Changes in v3: - Added hdcp_mutex/hdcp_value to make async reasonable - Added hdcp_prop_work to separate link checking & property setting - Added new helper for atomic_check state tracking (Daniel) - Moved enable/disable into atomic_commit with matching helpers - Moved intel_hdcp_check_link out of all locks when called from dp - Bumped up ksv_fifo timeout (noticed failure on one of my dongles) Changes in v4: - Remove SKL_ prefix from most register names (Daniel) - Move enable/disable back to modeset path (Daniel) - s/get_random_long/get_random_u32/ (Daniel) - Remove mode_config.mutex lock in prop_work (Daniel) - Add intel_hdcp_init to handle init of conn components (Daniel) - Actually check return value of attach_property - Check Bksv is valid before trying to authenticate (Ram) Changes in v5: - checkpatch whitespace changes - s/DRM_MODE_CONTENT_PROTECTION_OFF/DRM_MODE_CONTENT_PROTECTION_UNDESIRED/ - Fix ksv list wait timeout (actually wait 5s) - Increase the R0 timeout to 300ms (Ram) Changes in v6: - SPDX license Cc: Chris Wilson Reviewed-by: Ramalingam C Reviewed-by: Daniel Vetter Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-6-seanpaul@chromium.org --- drivers/gpu/drm/i915/intel_display.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_display.c') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0cd355978ab4..02bf31d935b4 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -15217,6 +15217,10 @@ static void intel_hpd_poll_fini(struct drm_device *dev) for_each_intel_connector_iter(connector, &conn_iter) { if (connector->modeset_retry_work.func) cancel_work_sync(&connector->modeset_retry_work); + if (connector->hdcp_shim) { + cancel_delayed_work_sync(&connector->hdcp_check_work); + cancel_work_sync(&connector->hdcp_prop_work); + } } drm_connector_list_iter_end(&conn_iter); } -- cgit v1.2.3 From 0574bd882efd3c2dba4a3cfe3f10e214c08eb92d Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 23 Nov 2017 21:04:48 +0200 Subject: drm/i915: Reject odd pipe source width with double wide/dual link MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In order to guarantee that pipe_src_w/h matches the user mode h/vdisplay we must not adjust pipe_src_w to accommodate double wide/dual link. Instead just reject the mode outright. This will allows us to rely on crtc_state->mode for plane clipping. Cc: Laurent Pinchart Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20171123190502.28449-2-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter Reviewed-by: Thierry Reding --- drivers/gpu/drm/i915/intel_display.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_display.c') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0cd355978ab4..dc84a3bd7777 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6372,9 +6372,18 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc, * - LVDS dual channel mode * - Double wide pipe */ - if ((intel_crtc_has_type(pipe_config, INTEL_OUTPUT_LVDS) && - intel_is_dual_link_lvds(dev)) || pipe_config->double_wide) - pipe_config->pipe_src_w &= ~1; + if (pipe_config->pipe_src_w & 1) { + if (pipe_config->double_wide) { + DRM_DEBUG_KMS("Odd pipe source width not supported with double wide pipe\n"); + return -EINVAL; + } + + if (intel_crtc_has_type(pipe_config, INTEL_OUTPUT_LVDS) && + intel_is_dual_link_lvds(dev)) { + DRM_DEBUG_KMS("Odd pipe source width not supported with dual link LVDS\n"); + return -EINVAL; + } + } /* Cantiga+ cannot handle modes with a hsync front porch of 0. * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. -- cgit v1.2.3 From a2936e3d9a9cb2ce192455cdec3a8cfccc26b486 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Thu, 23 Nov 2017 21:04:49 +0200 Subject: drm/i915: Use drm_mode_get_hv_timing() to populate plane clip rectangle MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use drm_mode_get_hv_timing() to fill out the plane clip rectangle. No functional changes since pipe_src_w/h are already filled via drm_mode_get_hv_timing(). Once everyone agrees on this we can move the clip handling into drm_atomic_helper_check_plane_state(). Cc: Laurent Pinchart Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20171123190502.28449-3-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter Reviewed-by: Thierry Reding --- drivers/gpu/drm/i915/intel_atomic_plane.c | 8 -------- drivers/gpu/drm/i915/intel_display.c | 14 ++++++++++++-- drivers/gpu/drm/i915/intel_drv.h | 1 - drivers/gpu/drm/i915/intel_sprite.c | 8 ++++++-- 4 files changed, 18 insertions(+), 13 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_display.c') diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c index 8e6dc159f64d..c7984a80706e 100644 --- a/drivers/gpu/drm/i915/intel_atomic_plane.c +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c @@ -129,14 +129,6 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_ if (!intel_state->base.crtc && !old_plane_state->base.crtc) return 0; - /* Clip all planes to CRTC size, or 0x0 if CRTC is disabled */ - intel_state->clip.x1 = 0; - intel_state->clip.y1 = 0; - intel_state->clip.x2 = - crtc_state->base.enable ? crtc_state->pipe_src_w : 0; - intel_state->clip.y2 = - crtc_state->base.enable ? crtc_state->pipe_src_h : 0; - if (state->fb && drm_rotation_90_or_270(state->rotation)) { struct drm_format_name_buf format_name; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index dc84a3bd7777..eb2322175624 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9317,13 +9317,18 @@ static int intel_check_cursor(struct intel_crtc_state *crtc_state, struct intel_plane_state *plane_state) { const struct drm_framebuffer *fb = plane_state->base.fb; + struct drm_rect clip = {}; int src_x, src_y; u32 offset; int ret; + if (crtc_state->base.enable) + drm_mode_get_hv_timing(&crtc_state->base.mode, + &clip.x2, &clip.y2); + ret = drm_atomic_helper_check_plane_state(&plane_state->base, &crtc_state->base, - &plane_state->clip, + &clip, DRM_PLANE_HELPER_NO_SCALING, DRM_PLANE_HELPER_NO_SCALING, true, true); @@ -12752,6 +12757,7 @@ intel_check_primary_plane(struct intel_plane *plane, int min_scale = DRM_PLANE_HELPER_NO_SCALING; int max_scale = DRM_PLANE_HELPER_NO_SCALING; bool can_position = false; + struct drm_rect clip = {}; int ret; if (INTEL_GEN(dev_priv) >= 9) { @@ -12763,9 +12769,13 @@ intel_check_primary_plane(struct intel_plane *plane, can_position = true; } + if (crtc_state->base.enable) + drm_mode_get_hv_timing(&crtc_state->base.mode, + &clip.x2, &clip.y2); + ret = drm_atomic_helper_check_plane_state(&state->base, &crtc_state->base, - &state->clip, + &clip, min_scale, max_scale, can_position, true); if (ret) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 30f791f89d64..af2646d98512 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -406,7 +406,6 @@ struct intel_atomic_state { struct intel_plane_state { struct drm_plane_state base; - struct drm_rect clip; struct i915_vma *vma; struct { diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index dd485f59eb1d..cffa7a8b0f9c 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -864,7 +864,7 @@ intel_check_sprite_plane(struct intel_plane *plane, uint32_t src_x, src_y, src_w, src_h; struct drm_rect *src = &state->base.src; struct drm_rect *dst = &state->base.dst; - const struct drm_rect *clip = &state->clip; + struct drm_rect clip = {}; int hscale, vscale; int max_scale, min_scale; bool can_scale; @@ -922,7 +922,11 @@ intel_check_sprite_plane(struct intel_plane *plane, vscale = drm_rect_calc_vscale_relaxed(src, dst, min_scale, max_scale); BUG_ON(vscale < 0); - state->base.visible = drm_rect_clip_scaled(src, dst, clip, hscale, vscale); + if (crtc_state->base.enable) + drm_mode_get_hv_timing(&crtc_state->base.mode, + &clip.x2, &clip.y2); + + state->base.visible = drm_rect_clip_scaled(src, dst, &clip, hscale, vscale); crtc_x = dst->x1; crtc_y = dst->y1; -- cgit v1.2.3 From e995ca0b8139c5f6807095464e969931b443f55a Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Tue, 14 Nov 2017 20:32:58 +0200 Subject: drm/i915: Provide a device level .mode_valid() hook MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We never support certain mode flags etc. Reject those early on in the mode_config.mode_valid() hook. That allows us to remove some duplicated checks from the connector .mode_valid() hooks, and it guarantees that we never see those flags even from user mode as the mode_config.mode_valid() hooks gets executed for those as well. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20171114183258.16976-11-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_crt.c | 3 --- drivers/gpu/drm/i915/intel_display.c | 27 +++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_dsi.c | 5 ----- drivers/gpu/drm/i915/intel_dvo.c | 3 --- drivers/gpu/drm/i915/intel_fbc.c | 3 +-- drivers/gpu/drm/i915/intel_hdmi.c | 3 --- drivers/gpu/drm/i915/intel_sdvo.c | 3 --- 7 files changed, 28 insertions(+), 19 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_display.c') diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 9f31aea51dff..1cd4a7c22bd5 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -304,9 +304,6 @@ intel_crt_mode_valid(struct drm_connector *connector, int max_dotclk = dev_priv->max_dotclk_freq; int max_clock; - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) - return MODE_NO_DBLESCAN; - if (mode->clock < 25000) return MODE_CLOCK_LOW; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index eb2322175624..9803da5fd6b3 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -14082,10 +14082,37 @@ static void intel_atomic_state_free(struct drm_atomic_state *state) kfree(state); } +static enum drm_mode_status +intel_mode_valid(struct drm_device *dev, + const struct drm_display_mode *mode) +{ + if (mode->vscan > 1) + return MODE_NO_VSCAN; + + if (mode->flags & DRM_MODE_FLAG_DBLSCAN) + return MODE_NO_DBLESCAN; + + if (mode->flags & DRM_MODE_FLAG_HSKEW) + return MODE_H_ILLEGAL; + + if (mode->flags & (DRM_MODE_FLAG_CSYNC | + DRM_MODE_FLAG_NCSYNC | + DRM_MODE_FLAG_PCSYNC)) + return MODE_HSYNC; + + if (mode->flags & (DRM_MODE_FLAG_BCAST | + DRM_MODE_FLAG_PIXMUX | + DRM_MODE_FLAG_CLKDIV2)) + return MODE_BAD; + + return MODE_OK; +} + static const struct drm_mode_config_funcs intel_mode_funcs = { .fb_create = intel_user_framebuffer_create, .get_format_info = intel_get_format_info, .output_poll_changed = intel_fbdev_output_poll_changed, + .mode_valid = intel_mode_valid, .atomic_check = intel_atomic_check, .atomic_commit = intel_atomic_commit, .atomic_state_alloc = intel_atomic_state_alloc, diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index f67d321376e4..51a1d6868b1e 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -1266,11 +1266,6 @@ intel_dsi_mode_valid(struct drm_connector *connector, DRM_DEBUG_KMS("\n"); - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) { - DRM_DEBUG_KMS("MODE_NO_DBLESCAN\n"); - return MODE_NO_DBLESCAN; - } - if (fixed_mode) { if (mode->hdisplay > fixed_mode->hdisplay) return MODE_PANEL; diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c index 754baa00bea9..59c066ca14e5 100644 --- a/drivers/gpu/drm/i915/intel_dvo.c +++ b/drivers/gpu/drm/i915/intel_dvo.c @@ -219,9 +219,6 @@ intel_dvo_mode_valid(struct drm_connector *connector, int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; int target_clock = mode->clock; - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) - return MODE_NO_DBLESCAN; - /* XXX: Validate clock range */ if (fixed_mode) { diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index f88c1b5dae4c..eee1b02c827e 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -794,8 +794,7 @@ static bool intel_fbc_can_activate(struct intel_crtc *crtc) return false; } - if ((cache->crtc.mode_flags & DRM_MODE_FLAG_INTERLACE) || - (cache->crtc.mode_flags & DRM_MODE_FLAG_DBLSCAN)) { + if (cache->crtc.mode_flags & DRM_MODE_FLAG_INTERLACE) { fbc->no_fbc_reason = "incompatible mode"; return false; } diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index bced7b954d93..8a9a925410e5 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1314,9 +1314,6 @@ intel_hdmi_mode_valid(struct drm_connector *connector, bool force_dvi = READ_ONCE(to_intel_digital_connector_state(connector->state)->force_audio) == HDMI_AUDIO_OFF_DVI; - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) - return MODE_NO_DBLESCAN; - clock = mode->clock; if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING) diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index 2b8764897d68..0bf97ed5ffac 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1607,9 +1607,6 @@ intel_sdvo_mode_valid(struct drm_connector *connector, struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector); int max_dotclk = to_i915(connector->dev)->max_dotclk_freq; - if (mode->flags & DRM_MODE_FLAG_DBLSCAN) - return MODE_NO_DBLESCAN; - if (intel_sdvo->pixel_clock_min > mode->clock) return MODE_CLOCK_LOW; -- cgit v1.2.3