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drm/i915: Add aliases for uapi and hw to crtc_state

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Prepare to split up hw and uapi machinally, by adding a uapi and
hw alias. We will remove the base in a bit. This is a split from the
original uapi/hw patch, which did it all in one go.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031112610.27608-2-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This commit is contained in:
Maarten Lankhorst 2019-10-31 12:26:00 +01:00
parent 3558cafc31
commit 2b808b3a27
4 changed files with 37 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/gpu/drm/i915/display/intel_atomic.c
View file

@ -186,9 +186,10 @@ intel_digital_connector_duplicate_state(struct drm_connector *connector)
struct drm_crtc_state *
intel_crtc_duplicate_state(struct drm_crtc *crtc)
{
const struct intel_crtc_state *old_crtc_state = to_intel_crtc_state(crtc->state);
struct intel_crtc_state *crtc_state;
crtc_state = kmemdup(crtc->state, sizeof(*crtc_state), GFP_KERNEL);
crtc_state = kmemdup(old_crtc_state, sizeof(*crtc_state), GFP_KERNEL);
if (!crtc_state)
return NULL;
@ -219,7 +220,10 @@ void
intel_crtc_destroy_state(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
drm_atomic_helper_crtc_destroy_state(crtc, state);
struct intel_crtc_state *crtc_state = to_intel_crtc_state(state);
__drm_atomic_helper_crtc_destroy_state(&crtc_state->base);
kfree(crtc_state);
}
static void intel_atomic_setup_scaler(struct intel_crtc_scaler_state *scaler_state,

2
drivers/gpu/drm/i915/display/intel_display.c
View file

@ -12592,6 +12592,8 @@ clear_intel_crtc_state(struct intel_crtc_state *crtc_state)
/* Keep base drm_crtc_state intact, only clear our extended struct */
BUILD_BUG_ON(offsetof(struct intel_crtc_state, base));
BUILD_BUG_ON(offsetof(struct intel_crtc_state, uapi));
BUILD_BUG_ON(offsetof(struct intel_crtc_state, hw));
memcpy(&crtc_state->base + 1, &saved_state->base + 1,
sizeof(*crtc_state) - sizeof(crtc_state->base));

6
drivers/gpu/drm/i915/display/intel_display.h
View file

@ -447,10 +447,10 @@ enum phy_fia {
#define intel_atomic_crtc_state_for_each_plane_state( \
plane, plane_state, \
crtc_state) \
for_each_intel_plane_mask(((crtc_state)->base.state->dev), (plane), \
((crtc_state)->base.plane_mask)) \
for_each_intel_plane_mask(((crtc_state)->uapi.state->dev), (plane), \
((crtc_state)->uapi.plane_mask)) \
for_each_if ((plane_state = \
to_intel_plane_state(__drm_atomic_get_current_plane_state((crtc_state)->base.state, &plane->base))))
to_intel_plane_state(__drm_atomic_get_current_plane_state((crtc_state)->uapi.state, &plane->base))))
void intel_link_compute_m_n(u16 bpp, int nlanes,
int pixel_clock, int link_clock,

27
drivers/gpu/drm/i915/display/intel_display_types.h
View file

@ -757,7 +757,32 @@ enum intel_output_format {
};
struct intel_crtc_state {
union {
struct drm_crtc_state base;
/*
* uapi (drm) state. This is the software state shown to userspace.
* In particular, the following members are used for bookkeeping:
* - crtc
* - state
* - *_changed
* - event
* - commit
* - mode_blob
*/
struct drm_crtc_state uapi;
/*
* actual hardware state, the state we program to the hardware.
* The following members are used to verify the hardware state:
* - enable
* - active
* - mode / adjusted_mode
* - color property blobs.
*
* During initial hw readout, they need to be copied to uapi.
*/
struct drm_crtc_state hw;
};
/**
* quirks - bitfield with hw state readout quirks
@ -1112,7 +1137,7 @@ struct cxsr_latency {
#define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
#define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
#define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
#define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, uapi)
#define to_intel_connector(x) container_of(x, struct intel_connector, base)
#define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
#define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)