On Mon, 04 May 2020, Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@xxxxxxxxx> wrote:
> struct drm_device specific drm_WARN* macros include device information
> in the backtrace, so we know what device the warnings originate from.
>
> Prefer drm_WARN* over WARN* calls.
>
> changes since v1:
> - Added dev_priv local variable and used it in drm_WARN* calls (Jani)
In the earlier patches you're adding i915 local variable, here it's
dev_priv. We're gradually transitioning from dev_priv to i915, so I'm
not thrilled about adding new dev_priv.
BR,
Jani.
>
> Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_sdvo.c | 21 ++++++++++++++-------
> 1 file changed, 14 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
> index bc6c26818e15..773523dcd107 100644
> --- a/drivers/gpu/drm/i915/display/intel_sdvo.c
> +++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
> @@ -411,6 +411,7 @@ static const char *sdvo_cmd_name(u8 cmd)
> static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
> const void *args, int args_len)
> {
> + struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
> const char *cmd_name;
> int i, pos = 0;
> char buffer[64];
> @@ -431,7 +432,7 @@ static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd,
> else
> BUF_PRINT("(%02X)", cmd);
>
> - WARN_ON(pos >= sizeof(buffer) - 1);
> + drm_WARN_ON(&dev_priv->drm, pos >= sizeof(buffer) - 1);
> #undef BUF_PRINT
>
> DRM_DEBUG_KMS("%s: W: %02X %s\n", SDVO_NAME(intel_sdvo), cmd, buffer);
> @@ -533,6 +534,7 @@ static bool intel_sdvo_write_cmd(struct intel_sdvo *intel_sdvo, u8 cmd,
> static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
> void *response, int response_len)
> {
> + struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
> const char *cmd_status;
> u8 retry = 15; /* 5 quick checks, followed by 10 long checks */
> u8 status;
> @@ -597,7 +599,7 @@ static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
> BUF_PRINT(" %02X", ((u8 *)response)[i]);
> }
>
> - WARN_ON(pos >= sizeof(buffer) - 1);
> + drm_WARN_ON(&dev_priv->drm, pos >= sizeof(buffer) - 1);
> #undef BUF_PRINT
>
> DRM_DEBUG_KMS("%s: R: %s\n", SDVO_NAME(intel_sdvo), buffer);
> @@ -1081,6 +1083,7 @@ static bool intel_sdvo_compute_avi_infoframe(struct intel_sdvo *intel_sdvo,
> struct intel_crtc_state *crtc_state,
> struct drm_connector_state *conn_state)
> {
> + struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
> struct hdmi_avi_infoframe *frame = &crtc_state->infoframes.avi.avi;
> const struct drm_display_mode *adjusted_mode =
> &crtc_state->hw.adjusted_mode;
> @@ -1106,7 +1109,7 @@ static bool intel_sdvo_compute_avi_infoframe(struct intel_sdvo *intel_sdvo,
> HDMI_QUANTIZATION_RANGE_FULL);
>
> ret = hdmi_avi_infoframe_check(frame);
> - if (WARN_ON(ret))
> + if (drm_WARN_ON(&dev_priv->drm, ret))
> return false;
>
> return true;
> @@ -1115,6 +1118,7 @@ static bool intel_sdvo_compute_avi_infoframe(struct intel_sdvo *intel_sdvo,
> static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
> const struct intel_crtc_state *crtc_state)
> {
> + struct drm_i915_private *dev_priv = to_i915(intel_sdvo->base.base.dev);
> u8 sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
> const union hdmi_infoframe *frame = &crtc_state->infoframes.avi;
> ssize_t len;
> @@ -1123,11 +1127,12 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
> intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI)) == 0)
> return true;
>
> - if (WARN_ON(frame->any.type != HDMI_INFOFRAME_TYPE_AVI))
> + if (drm_WARN_ON(&dev_priv->drm,
> + frame->any.type != HDMI_INFOFRAME_TYPE_AVI))
> return false;
>
> len = hdmi_infoframe_pack_only(frame, sdvo_data, sizeof(sdvo_data));
> - if (WARN_ON(len < 0))
> + if (drm_WARN_ON(&dev_priv->drm, len < 0))
> return false;
>
> return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
> @@ -1237,6 +1242,7 @@ intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
>
> static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config)
> {
> + struct drm_i915_private *dev_priv = to_i915(pipe_config->uapi.crtc->dev);
> unsigned dotclock = pipe_config->port_clock;
> struct dpll *clock = &pipe_config->dpll;
>
> @@ -1257,7 +1263,8 @@ static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config)
> clock->m1 = 12;
> clock->m2 = 8;
> } else {
> - WARN(1, "SDVO TV clock out of range: %i\n", dotclock);
> + drm_WARN(&dev_priv->drm, 1,
> + "SDVO TV clock out of range: %i\n", dotclock);
> }
>
> pipe_config->clock_set = true;
> @@ -2293,7 +2300,7 @@ intel_sdvo_connector_atomic_get_property(struct drm_connector *connector,
> return 0;
> }
>
> - WARN_ON(1);
> + drm_WARN_ON(connector->dev, 1);
> *val = 0;
> } else if (property == intel_sdvo_connector->top ||
> property == intel_sdvo_connector->bottom)
--
Jani Nikula, Intel Open Source Graphics Center
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