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drm/i915: Move to atomic plane helpers (v9)

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Switch plane handling to use the atomic plane helpers.  This means that
rather than provide our own implementations of .update_plane() and
.disable_plane(), we expose the lower-level check/prepare/commit/cleanup
entrypoints and let the DRM core implement update/disable for us using
those entrypoints.

The other main change that falls out of this patch is that our
drm_plane's will now always have a valid plane->state that contains the
relevant plane state (initial state is allocated at plane creation).
The base drm_plane_state pointed to holds the requested source/dest
coordinates, and the subclassed intel_plane_state holds the adjusted
values that our driver actually uses.

v2:
 - Renamed file from intel_atomic.c to intel_atomic_plane.c (Daniel)
 - Fix a copy/paste comment mistake (Bob)

v3:
 - Use prepare/cleanup functions that we've already factored out
 - Use newly refactored pre_commit/commit/post_commit to avoid sleeping
   during vblank evasion

v4:
 - Rebase to latest di-nightly requires adding an 'old_state' parameter
   to atomic_update;

v5:
 - Must have botched a rebase somewhere and lost some work.  Restore
   state 'dirty' flag to let begin/end code know which planes to
   run the pre_commit/post_commit hooks for.  This would have actually
   shown up as broken in the next commit rather than this one.

v6:
 - Squash kerneldoc patch into this one.
 - Previous patches have now already taken care of most of the
   infrastructure that used to be in this patch.  All we're adding here
   now is some thin wrappers.

v7:
 - Check return of intel_plane_duplicate_state() for allocation
   failures.

v8:
 - Drop unused drm_plane_state -> intel_plane_state cast.  (Ander)
 - Squash in actual transition to plane helpers.  Significant
   refactoring earlier in the patchset has made the combined
   prep+transition much easier to swallow than it was in earlier
   iterations. (Ander)

v9:
 - s/track_fbs/disabled_planes/ in the atomic crtc flags.  The only fb's
   we need to update frontbuffer tracking for are those on a plane about
   to be disabled (since the atomic helpers never call prepare_fb() when
   disabling a plane), so the new name more accurately describes what
   we're actually tracking.

Testcase: igt/kms_plane
Testcase: igt/kms_universal_plane
Testcase: igt/kms_cursor_crc
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
这个提交包含在：
Matt Roper
2014-12-23 10:41:52 -08:00
提交者 Daniel Vetter
父节点 4a3b8769f8
当前提交 ea2c67bb4a
共修改 6 个文件，包含 303 行新增和 165 行删除
下载 Patch 文件 下载 Diff 文件 展开所有文件 折叠所有文件

251
drivers/gpu/drm/i915/intel_display.c
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@@ -98,6 +98,8 @@ static void vlv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_config *pipe_config);
static void chv_prepare_pll(struct intel_crtc *crtc,
const struct intel_crtc_config *pipe_config);
static void intel_begin_crtc_commit(struct drm_crtc *crtc);
static void intel_finish_crtc_commit(struct drm_crtc *crtc);
static struct intel_encoder *intel_find_encoder(struct intel_connector *connector, int pipe)
{
@@ -9794,6 +9796,8 @@ out_hang:
static struct drm_crtc_helper_funcs intel_helper_funcs = {
.mode_set_base_atomic = intel_pipe_set_base_atomic,
.load_lut = intel_crtc_load_lut,
.atomic_begin = intel_begin_crtc_commit,
.atomic_flush = intel_finish_crtc_commit,
};
/**
@@ -11674,7 +11678,7 @@ intel_prepare_plane_fb(struct drm_plane *plane,
unsigned frontbuffer_bits = 0;
int ret = 0;
if (WARN_ON(fb == plane->fb || !obj))
if (!obj)
return 0;
switch (plane->type) {
@@ -11741,7 +11745,7 @@ intel_check_primary_plane(struct drm_plane *plane,
struct drm_device *dev = plane->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_crtc *crtc = state->base.crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc *intel_crtc;
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_framebuffer *fb = state->base.fb;
struct drm_rect *dest = &state->dst;
@@ -11749,6 +11753,9 @@ intel_check_primary_plane(struct drm_plane *plane,
const struct drm_rect *clip = &state->clip;
int ret;
crtc = crtc ? crtc : plane->crtc;
intel_crtc = to_intel_crtc(crtc);
ret = drm_plane_helper_check_update(plane, crtc, fb,
src, dest, clip,
DRM_PLANE_HELPER_NO_SCALING,
@@ -11804,23 +11811,26 @@ intel_commit_primary_plane(struct drm_plane *plane,
struct drm_framebuffer *fb = state->base.fb;
struct drm_device *dev = plane->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc *intel_crtc;
struct drm_i915_gem_object *obj = intel_fb_obj(fb);
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_rect *src = &state->src;
crtc = crtc ? crtc : plane->crtc;
intel_crtc = to_intel_crtc(crtc);
plane->fb = fb;
crtc->x = src->x1 >> 16;
crtc->y = src->y1 >> 16;
intel_plane->crtc_x = state->orig_dst.x1;
intel_plane->crtc_y = state->orig_dst.y1;
intel_plane->crtc_w = drm_rect_width(&state->orig_dst);
intel_plane->crtc_h = drm_rect_height(&state->orig_dst);
intel_plane->src_x = state->orig_src.x1;
intel_plane->src_y = state->orig_src.y1;
intel_plane->src_w = drm_rect_width(&state->orig_src);
intel_plane->src_h = drm_rect_height(&state->orig_src);
intel_plane->crtc_x = state->base.crtc_x;
intel_plane->crtc_y = state->base.crtc_y;
intel_plane->crtc_w = state->base.crtc_w;
intel_plane->crtc_h = state->base.crtc_h;
intel_plane->src_x = state->base.src_x;
intel_plane->src_y = state->base.src_y;
intel_plane->src_w = state->base.src_w;
intel_plane->src_h = state->base.src_h;
intel_plane->obj = obj;
if (intel_crtc->active) {
@@ -11850,6 +11860,33 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc)
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_plane *intel_plane;
struct drm_plane *p;
unsigned fb_bits = 0;
/* Track fb's for any planes being disabled */
list_for_each_entry(p, &dev->mode_config.plane_list, head) {
intel_plane = to_intel_plane(p);
if (intel_crtc->atomic.disabled_planes &
(1 << drm_plane_index(p))) {
switch (p->type) {
case DRM_PLANE_TYPE_PRIMARY:
fb_bits = INTEL_FRONTBUFFER_PRIMARY(intel_plane->pipe);
break;
case DRM_PLANE_TYPE_CURSOR:
fb_bits = INTEL_FRONTBUFFER_CURSOR(intel_plane->pipe);
break;
case DRM_PLANE_TYPE_OVERLAY:
fb_bits = INTEL_FRONTBUFFER_SPRITE(intel_plane->pipe);
break;
}
mutex_lock(&dev->struct_mutex);
i915_gem_track_fb(intel_fb_obj(p->fb), NULL, fb_bits);
mutex_unlock(&dev->struct_mutex);
}
}
if (intel_crtc->atomic.wait_for_flips)
intel_crtc_wait_for_pending_flips(crtc);
@@ -11907,111 +11944,6 @@ static void intel_finish_crtc_commit(struct drm_crtc *crtc)
memset(&intel_crtc->atomic, 0, sizeof(intel_crtc->atomic));
}
int
intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
struct drm_device *dev = plane->dev;
struct drm_framebuffer *old_fb = plane->fb;
struct intel_plane_state state = {{ 0 }};
struct intel_plane *intel_plane = to_intel_plane(plane);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int ret;
state.base.crtc = crtc ? crtc : plane->crtc;
state.base.fb = fb;
/* sample coordinates in 16.16 fixed point */
state.src.x1 = src_x;
state.src.x2 = src_x + src_w;
state.src.y1 = src_y;
state.src.y2 = src_y + src_h;
/* integer pixels */
state.dst.x1 = crtc_x;
state.dst.x2 = crtc_x + crtc_w;
state.dst.y1 = crtc_y;
state.dst.y2 = crtc_y + crtc_h;
state.clip.x1 = 0;
state.clip.y1 = 0;
state.clip.x2 = intel_crtc->active ? intel_crtc->config.pipe_src_w : 0;
state.clip.y2 = intel_crtc->active ? intel_crtc->config.pipe_src_h : 0;
state.orig_src = state.src;
state.orig_dst = state.dst;
ret = intel_plane->check_plane(plane, &state);
if (ret)
return ret;
if (fb != old_fb && fb) {
ret = intel_prepare_plane_fb(plane, fb);
if (ret)
return ret;
}
if (!state.base.fb) {
unsigned fb_bits = 0;
switch (plane->type) {
case DRM_PLANE_TYPE_PRIMARY:
fb_bits = INTEL_FRONTBUFFER_PRIMARY(intel_plane->pipe);
break;
case DRM_PLANE_TYPE_CURSOR:
fb_bits = INTEL_FRONTBUFFER_CURSOR(intel_plane->pipe);
break;
case DRM_PLANE_TYPE_OVERLAY:
fb_bits = INTEL_FRONTBUFFER_SPRITE(intel_plane->pipe);
break;
}
/*
* 'prepare' is never called when plane is being disabled, so
* we need to handle frontbuffer tracking here
*/
mutex_lock(&dev->struct_mutex);
i915_gem_track_fb(intel_fb_obj(plane->fb), NULL, fb_bits);
mutex_unlock(&dev->struct_mutex);
}
intel_begin_crtc_commit(crtc);
intel_plane->commit_plane(plane, &state);
intel_finish_crtc_commit(crtc);
if (fb != old_fb && old_fb) {
if (intel_crtc->active)
intel_wait_for_vblank(dev, intel_crtc->pipe);
intel_cleanup_plane_fb(plane, old_fb);
}
plane->fb = fb;
return 0;
}
/**
* intel_disable_plane - disable a plane
* @plane: plane to disable
*
* General disable handler for all plane types.
*/
int
intel_disable_plane(struct drm_plane *plane)
{
if (!plane->fb)
return 0;
if (WARN_ON(!plane->crtc))
return -EINVAL;
return plane->funcs->update_plane(plane, plane->crtc, NULL,
0, 0, 0, 0, 0, 0, 0, 0);
}
/**
* intel_plane_destroy - destroy a plane
* @plane: plane to destroy
@@ -12022,15 +11954,19 @@ intel_disable_plane(struct drm_plane *plane)
void intel_plane_destroy(struct drm_plane *plane)
{
struct intel_plane *intel_plane = to_intel_plane(plane);
intel_plane_destroy_state(plane, plane->state);
drm_plane_cleanup(plane);
kfree(intel_plane);
}
static const struct drm_plane_funcs intel_primary_plane_funcs = {
.update_plane = intel_update_plane,
.disable_plane = intel_disable_plane,
.update_plane = drm_plane_helper_update,
.disable_plane = drm_plane_helper_disable,
.destroy = intel_plane_destroy,
.set_property = intel_plane_set_property
.set_property = intel_plane_set_property,
.atomic_duplicate_state = intel_plane_duplicate_state,
.atomic_destroy_state = intel_plane_destroy_state,
};
static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
@@ -12044,6 +11980,12 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
if (primary == NULL)
return NULL;
primary->base.state = intel_plane_duplicate_state(&primary->base);
if (primary->base.state == NULL) {
kfree(primary);
return NULL;
}
primary->can_scale = false;
primary->max_downscale = 1;
primary->pipe = pipe;
@@ -12079,6 +12021,8 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
primary->rotation);
}
drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
return &primary->base;
}
@@ -12087,17 +12031,19 @@ intel_check_cursor_plane(struct drm_plane *plane,
struct intel_plane_state *state)
{
struct drm_crtc *crtc = state->base.crtc;
struct drm_device *dev = crtc->dev;
struct drm_device *dev = plane->dev;
struct drm_framebuffer *fb = state->base.fb;
struct drm_rect *dest = &state->dst;
struct drm_rect *src = &state->src;
const struct drm_rect *clip = &state->clip;
struct drm_i915_gem_object *obj = intel_fb_obj(fb);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int crtc_w, crtc_h;
struct intel_crtc *intel_crtc;
unsigned stride;
int ret;
crtc = crtc ? crtc : plane->crtc;
intel_crtc = to_intel_crtc(crtc);
ret = drm_plane_helper_check_update(plane, crtc, fb,
src, dest, clip,
DRM_PLANE_HELPER_NO_SCALING,
@@ -12112,15 +12058,14 @@ intel_check_cursor_plane(struct drm_plane *plane,
goto finish;
/* Check for which cursor types we support */
crtc_w = drm_rect_width(&state->orig_dst);
crtc_h = drm_rect_height(&state->orig_dst);
if (!cursor_size_ok(dev, crtc_w, crtc_h)) {
DRM_DEBUG("Cursor dimension not supported\n");
if (!cursor_size_ok(dev, state->base.crtc_w, state->base.crtc_h)) {
DRM_DEBUG("Cursor dimension %dx%d not supported\n",
state->base.crtc_w, state->base.crtc_h);
return -EINVAL;
}
stride = roundup_pow_of_two(crtc_w) * 4;
if (obj->base.size < stride * crtc_h) {
stride = roundup_pow_of_two(state->base.crtc_w) * 4;
if (obj->base.size < stride * state->base.crtc_h) {
DRM_DEBUG_KMS("buffer is too small\n");
return -ENOMEM;
}
@@ -12138,8 +12083,7 @@ intel_check_cursor_plane(struct drm_plane *plane,
finish:
if (intel_crtc->active) {
if (intel_crtc->cursor_width !=
drm_rect_width(&state->orig_dst))
if (intel_crtc->cursor_width != state->base.crtc_w)
intel_crtc->atomic.update_wm = true;
intel_crtc->atomic.fb_bits |=
@@ -12154,24 +12098,27 @@ intel_commit_cursor_plane(struct drm_plane *plane,
struct intel_plane_state *state)
{
struct drm_crtc *crtc = state->base.crtc;
struct drm_device *dev = crtc->dev;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct drm_device *dev = plane->dev;
struct intel_crtc *intel_crtc;
struct intel_plane *intel_plane = to_intel_plane(plane);
struct drm_i915_gem_object *obj = intel_fb_obj(state->base.fb);
uint32_t addr;
plane->fb = state->base.fb;
crtc->cursor_x = state->orig_dst.x1;
crtc->cursor_y = state->orig_dst.y1;
crtc = crtc ? crtc : plane->crtc;
intel_crtc = to_intel_crtc(crtc);
intel_plane->crtc_x = state->orig_dst.x1;
intel_plane->crtc_y = state->orig_dst.y1;
intel_plane->crtc_w = drm_rect_width(&state->orig_dst);
intel_plane->crtc_h = drm_rect_height(&state->orig_dst);
intel_plane->src_x = state->orig_src.x1;
intel_plane->src_y = state->orig_src.y1;
intel_plane->src_w = drm_rect_width(&state->orig_src);
intel_plane->src_h = drm_rect_height(&state->orig_src);
plane->fb = state->base.fb;
crtc->cursor_x = state->base.crtc_x;
crtc->cursor_y = state->base.crtc_y;
intel_plane->crtc_x = state->base.crtc_x;
intel_plane->crtc_y = state->base.crtc_y;
intel_plane->crtc_w = state->base.crtc_w;
intel_plane->crtc_h = state->base.crtc_h;
intel_plane->src_x = state->base.src_x;
intel_plane->src_y = state->base.src_y;
intel_plane->src_w = state->base.src_w;
intel_plane->src_h = state->base.src_h;
intel_plane->obj = obj;
if (intel_crtc->cursor_bo == obj)
@@ -12187,18 +12134,20 @@ intel_commit_cursor_plane(struct drm_plane *plane,
intel_crtc->cursor_addr = addr;
intel_crtc->cursor_bo = obj;
update:
intel_crtc->cursor_width = drm_rect_width(&state->orig_dst);
intel_crtc->cursor_height = drm_rect_height(&state->orig_dst);
intel_crtc->cursor_width = state->base.crtc_w;
intel_crtc->cursor_height = state->base.crtc_h;
if (intel_crtc->active)
intel_crtc_update_cursor(crtc, state->visible);
}
static const struct drm_plane_funcs intel_cursor_plane_funcs = {
.update_plane = intel_update_plane,
.disable_plane = intel_disable_plane,
.update_plane = drm_plane_helper_update,
.disable_plane = drm_plane_helper_disable,
.destroy = intel_plane_destroy,
.set_property = intel_plane_set_property,
.atomic_duplicate_state = intel_plane_duplicate_state,
.atomic_destroy_state = intel_plane_destroy_state,
};
static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
@@ -12210,6 +12159,12 @@ static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
if (cursor == NULL)
return NULL;
cursor->base.state = intel_plane_duplicate_state(&cursor->base);
if (cursor->base.state == NULL) {
kfree(cursor);
return NULL;
}
cursor->can_scale = false;
cursor->max_downscale = 1;
cursor->pipe = pipe;
@@ -12236,6 +12191,8 @@ static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
cursor->rotation);
}
drm_plane_helper_add(&cursor->base, &intel_plane_helper_funcs);
return &cursor->base;
}