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drm/i915: Introduce intel_crtc_state_reset() 

We have a few places where we want to reset a crtc state to its
default values. Let's add a helper for that. We'll need the new
__drm_atomic_helper_crtc_state_reset() helper for this to allow
us to just reset the state itself without clobbering the
crtc->state pointer.

And while at it let's zero out the whole thing, except a few
choice member which we'll mark as "invalid". And thanks to this
we can now nuke intel_crtc_init_scalers().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107142417.11107-4-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
This commit is contained in:
Ville Syrjälä 2019-11-07 16:24:16 +02:00
parent 6643453987
commit 979e94c1d6
1 changed files with 22 additions and 25 deletions
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47
drivers/gpu/drm/i915/display/intel_display.c
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@ -164,7 +164,6 @@ static void vlv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config);
static void chv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_state *pipe_config);
static void intel_crtc_init_scalers(struct intel_crtc_state *crtc_state);
static void skylake_pfit_enable(const struct intel_crtc_state *crtc_state);
static void ironlake_pfit_disable(const struct intel_crtc_state *old_crtc_state);
static void ironlake_pfit_enable(const struct intel_crtc_state *crtc_state);
@ -10629,8 +10628,6 @@ static bool haswell_get_pipe_config(struct intel_crtc *crtc,
u64 power_domain_mask;
bool active;
intel_crtc_init_scalers(pipe_config);
pipe_config->master_transcoder = INVALID_TRANSCODER;
power_domain = POWER_DOMAIN_PIPE(crtc->pipe);
@ -11678,6 +11675,20 @@ static void ironlake_pch_clock_get(struct intel_crtc *crtc,
&pipe_config->fdi_m_n);
}
static void intel_crtc_state_reset(struct intel_crtc_state *crtc_state,
struct intel_crtc *crtc)
{
memset(crtc_state, 0, sizeof(*crtc_state));
__drm_atomic_helper_crtc_state_reset(&crtc_state->uapi, &crtc->base);
crtc_state->cpu_transcoder = INVALID_TRANSCODER;
crtc_state->master_transcoder = INVALID_TRANSCODER;
crtc_state->hsw_workaround_pipe = INVALID_PIPE;
crtc_state->output_format = INTEL_OUTPUT_FORMAT_INVALID;
crtc_state->scaler_state.scaler_id = -1;
}
/* Returns the currently programmed mode of the given encoder. */
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder)
@ -11703,7 +11714,7 @@ intel_encoder_current_mode(struct intel_encoder *encoder)
return NULL;
}
crtc_state->uapi.crtc = &crtc->base;
intel_crtc_state_reset(crtc_state, crtc);
if (!dev_priv->display.get_pipe_config(crtc, crtc_state)) {
kfree(crtc_state);
@ -13555,18 +13566,14 @@ verify_crtc_state(struct intel_crtc *crtc,
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_encoder *encoder;
struct intel_crtc_state *pipe_config;
struct drm_atomic_state *state;
struct intel_crtc_state *pipe_config = old_crtc_state;
struct drm_atomic_state *state = old_crtc_state->uapi.state;
bool active;
state = old_crtc_state->uapi.state;
__drm_atomic_helper_crtc_destroy_state(&old_crtc_state->uapi);
intel_crtc_free_hw_state(old_crtc_state);
pipe_config = old_crtc_state;
memset(pipe_config, 0, sizeof(*pipe_config));
pipe_config->uapi.crtc = &crtc->base;
pipe_config->uapi.state = state;
intel_crtc_state_reset(old_crtc_state, crtc);
old_crtc_state->uapi.state = state;
DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.base.id, crtc->base.name);
@ -15694,15 +15701,6 @@ fail:
return ERR_PTR(ret);
}
static void intel_crtc_init_scalers(struct intel_crtc_state *crtc_state)
{
struct intel_crtc_scaler_state *scaler_state =
&crtc_state->scaler_state;
memset(scaler_state, 0, sizeof(*scaler_state));
scaler_state->scaler_id = -1;
}
#define INTEL_CRTC_FUNCS \
.gamma_set = drm_atomic_helper_legacy_gamma_set, \
.set_config = drm_atomic_helper_set_config, \
@ -15785,9 +15783,9 @@ static struct intel_crtc *intel_crtc_alloc(void)
return ERR_PTR(-ENOMEM);
}
__drm_atomic_helper_crtc_reset(&crtc->base, &crtc_state->uapi);
intel_crtc_init_scalers(crtc_state);
intel_crtc_state_reset(crtc_state, crtc);
crtc->base.state = &crtc_state->uapi;
crtc->config = crtc_state;
return crtc;
@ -17408,8 +17406,7 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
__drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);
intel_crtc_free_hw_state(crtc_state);
memset(crtc_state, 0, sizeof(*crtc_state));
__drm_atomic_helper_crtc_reset(&crtc->base, &crtc_state->uapi);
intel_crtc_state_reset(crtc_state, crtc);
crtc_state->hw.active = crtc_state->hw.enable =
dev_priv->display.get_pipe_config(crtc, crtc_state);