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https://github.com/edk2-porting/linux-next.git
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6d124ff845
Atomic helpers really want this instead of the hacked-up legacy backoff trick, which unfortunately prevents drivers from using their own private drm_modeset_locks. Aside: There's a few atomic drivers (nv50, vc4, soon vmwgfx) which don't yet use the new atomic color mgmt/gamma table stuff. Would be nice if they could switch over and just hook up drm_atomic_helper_legacy_gamma_set() instead. Cc: Dave Airlie <airlied@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Sinclair Yeh <syeh@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Eric Anholt <eric@anholt.net> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170403083304.9083-13-daniel.vetter@ffwll.ch
103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
/*
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* Copyright © 2006-2011 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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* Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
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*/
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#ifndef _GMA_DISPLAY_H_
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#define _GMA_DISPLAY_H_
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#include <linux/pm_runtime.h>
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struct gma_clock_t {
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/* given values */
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int n;
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int m1, m2;
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int p1, p2;
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/* derived values */
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int dot;
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int vco;
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int m;
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int p;
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};
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struct gma_range_t {
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int min, max;
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};
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struct gma_p2_t {
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int dot_limit;
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int p2_slow, p2_fast;
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};
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struct gma_limit_t {
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struct gma_range_t dot, vco, n, m, m1, m2, p, p1;
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struct gma_p2_t p2;
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bool (*find_pll)(const struct gma_limit_t *, struct drm_crtc *,
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int target, int refclk,
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struct gma_clock_t *best_clock);
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};
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struct gma_clock_funcs {
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void (*clock)(int refclk, struct gma_clock_t *clock);
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const struct gma_limit_t *(*limit)(struct drm_crtc *crtc, int refclk);
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bool (*pll_is_valid)(struct drm_crtc *crtc,
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const struct gma_limit_t *limit,
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struct gma_clock_t *clock);
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};
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/* Common pipe related functions */
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extern bool gma_pipe_has_type(struct drm_crtc *crtc, int type);
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extern void gma_wait_for_vblank(struct drm_device *dev);
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extern int gma_pipe_set_base(struct drm_crtc *crtc, int x, int y,
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struct drm_framebuffer *old_fb);
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extern int gma_crtc_cursor_set(struct drm_crtc *crtc,
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struct drm_file *file_priv,
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uint32_t handle,
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uint32_t width, uint32_t height);
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extern int gma_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);
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extern void gma_crtc_load_lut(struct drm_crtc *crtc);
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extern int gma_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
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u16 *blue, u32 size,
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struct drm_modeset_acquire_ctx *ctx);
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extern void gma_crtc_dpms(struct drm_crtc *crtc, int mode);
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extern void gma_crtc_prepare(struct drm_crtc *crtc);
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extern void gma_crtc_commit(struct drm_crtc *crtc);
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extern void gma_crtc_disable(struct drm_crtc *crtc);
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extern void gma_crtc_destroy(struct drm_crtc *crtc);
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extern int gma_crtc_set_config(struct drm_mode_set *set,
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struct drm_modeset_acquire_ctx *ctx);
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extern void gma_crtc_save(struct drm_crtc *crtc);
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extern void gma_crtc_restore(struct drm_crtc *crtc);
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extern void gma_encoder_prepare(struct drm_encoder *encoder);
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extern void gma_encoder_commit(struct drm_encoder *encoder);
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extern void gma_encoder_destroy(struct drm_encoder *encoder);
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/* Common clock related functions */
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extern const struct gma_limit_t *gma_limit(struct drm_crtc *crtc, int refclk);
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extern void gma_clock(int refclk, struct gma_clock_t *clock);
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extern bool gma_pll_is_valid(struct drm_crtc *crtc,
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const struct gma_limit_t *limit,
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struct gma_clock_t *clock);
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extern bool gma_find_best_pll(const struct gma_limit_t *limit,
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struct drm_crtc *crtc, int target, int refclk,
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struct gma_clock_t *best_clock);
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#endif
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