From 3b59b7ac02e434f267f7cb1ef8fe48c23ddbe9a2 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 28 Jan 2015 15:01:22 +0100 Subject: [PATCH] drm/tegra: dc: Use base atomic state helpers Instead of duplicating the code, make use of the newly introduced atomic state duplicate and destroy helpers. This allows changes to the base atomic state handling to automatically propagate to the Tegra driver and thereby prevent breakage resulting from both copies going out of sync. Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/dc.c | 31 ++++++++++++++++++------------- 1 file changed, 18 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 9e329465ab11..d12c701ed292 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -425,8 +425,8 @@ static void tegra_plane_reset(struct drm_plane *plane) { struct tegra_plane_state *state; - if (plane->state && plane->state->fb) - drm_framebuffer_unreference(plane->state->fb); + if (plane->state) + __drm_atomic_helper_plane_destroy_state(plane, plane->state); kfree(plane->state); plane->state = NULL; @@ -443,12 +443,14 @@ static struct drm_plane_state *tegra_plane_atomic_duplicate_state(struct drm_pla struct tegra_plane_state *state = to_tegra_plane_state(plane->state); struct tegra_plane_state *copy; - copy = kmemdup(state, sizeof(*state), GFP_KERNEL); + copy = kmalloc(sizeof(*copy), GFP_KERNEL); if (!copy) return NULL; - if (copy->base.fb) - drm_framebuffer_reference(copy->base.fb); + __drm_atomic_helper_plane_duplicate_state(plane, ©->base); + copy->tiling = state->tiling; + copy->format = state->format; + copy->swap = state->swap; return ©->base; } @@ -456,9 +458,7 @@ static struct drm_plane_state *tegra_plane_atomic_duplicate_state(struct drm_pla static void tegra_plane_atomic_destroy_state(struct drm_plane *plane, struct drm_plane_state *state) { - if (state->fb) - drm_framebuffer_unreference(state->fb); - + __drm_atomic_helper_plane_destroy_state(plane, state); kfree(state); } @@ -1002,6 +1002,9 @@ static void tegra_crtc_reset(struct drm_crtc *crtc) { struct tegra_dc_state *state; + if (crtc->state) + __drm_atomic_helper_crtc_destroy_state(crtc, crtc->state); + kfree(crtc->state); crtc->state = NULL; @@ -1018,14 +1021,15 @@ tegra_crtc_atomic_duplicate_state(struct drm_crtc *crtc) struct tegra_dc_state *state = to_dc_state(crtc->state); struct tegra_dc_state *copy; - copy = kmemdup(state, sizeof(*state), GFP_KERNEL); + copy = kmalloc(sizeof(*copy), GFP_KERNEL); if (!copy) return NULL; - copy->base.mode_changed = false; - copy->base.active_changed = false; - copy->base.planes_changed = false; - copy->base.event = NULL; + __drm_atomic_helper_crtc_duplicate_state(crtc, ©->base); + copy->clk = state->clk; + copy->pclk = state->pclk; + copy->div = state->div; + copy->planes = state->planes; return ©->base; } @@ -1033,6 +1037,7 @@ tegra_crtc_atomic_duplicate_state(struct drm_crtc *crtc) static void tegra_crtc_atomic_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state) { + __drm_atomic_helper_crtc_destroy_state(crtc, state); kfree(state); } -- 2.20.1