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authorVille Syrjälä <ville.syrjala@linux.intel.com>2017-11-14 20:32:58 +0200
committerVille Syrjälä <ville.syrjala@linux.intel.com>2018-01-29 21:55:07 +0200
commite995ca0b8139c5f6807095464e969931b443f55a (patch)
treed08d7fd4f0bb93e7414ae2b4ce16a974296cf429 /drivers
parent75a655e0a26cf0bfbaaa8df0ff5a9d1807bb1f4e (diff)
drm/i915: Provide a device level .mode_valid() hook
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 <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171114183258.16976-11-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/intel_crt.c3
-rw-r--r--drivers/gpu/drm/i915/intel_display.c27
-rw-r--r--drivers/gpu/drm/i915/intel_dsi.c5
-rw-r--r--drivers/gpu/drm/i915/intel_dvo.c3
-rw-r--r--drivers/gpu/drm/i915/intel_fbc.c3
-rw-r--r--drivers/gpu/drm/i915/intel_hdmi.c3
-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c3
7 files changed, 28 insertions, 19 deletions
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;