提交 46f297fb 编写于 作者: J Jesse Barnes 提交者: Daniel Vetter

drm/i915: add plane_config fetching infrastructure v2

Early at init time, we can try to read out the plane config structure
and try to preserve it if possible.

v2: alloc fb obj at init time after fetching plane config
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
上级 c2831a94
......@@ -406,6 +406,7 @@ struct drm_i915_error_state {
struct intel_connector;
struct intel_crtc_config;
struct intel_plane_config;
struct intel_crtc;
struct intel_limit;
struct dpll;
......@@ -444,6 +445,8 @@ struct drm_i915_display_funcs {
* fills out the pipe-config with the hw state. */
bool (*get_pipe_config)(struct intel_crtc *,
struct intel_crtc_config *);
void (*get_plane_config)(struct intel_crtc *,
struct intel_plane_config *);
int (*crtc_mode_set)(struct drm_crtc *crtc,
int x, int y,
struct drm_framebuffer *old_fb);
......
......@@ -2047,6 +2047,70 @@ unsigned long intel_gen4_compute_page_offset(int *x, int *y,
}
}
int intel_format_to_fourcc(int format)
{
switch (format) {
case DISPPLANE_8BPP:
return DRM_FORMAT_C8;
case DISPPLANE_BGRX555:
return DRM_FORMAT_XRGB1555;
case DISPPLANE_BGRX565:
return DRM_FORMAT_RGB565;
default:
case DISPPLANE_BGRX888:
return DRM_FORMAT_XRGB8888;
case DISPPLANE_RGBX888:
return DRM_FORMAT_XBGR8888;
case DISPPLANE_BGRX101010:
return DRM_FORMAT_XRGB2101010;
case DISPPLANE_RGBX101010:
return DRM_FORMAT_XBGR2101010;
}
}
static void intel_alloc_plane_obj(struct intel_crtc *crtc,
struct intel_plane_config *plane_config)
{
struct drm_device *dev = crtc->base.dev;
struct drm_i915_gem_object *obj = NULL;
struct drm_mode_fb_cmd2 mode_cmd = { 0 };
u32 base = plane_config->base;
if (!plane_config->fb)
return;
obj = i915_gem_object_create_stolen_for_preallocated(dev, base, base,
plane_config->size);
if (!obj)
return;
if (plane_config->tiled) {
obj->tiling_mode = I915_TILING_X;
obj->stride = plane_config->fb->base.pitches[0];
}
mode_cmd.pixel_format = plane_config->fb->base.pixel_format;
mode_cmd.width = plane_config->fb->base.width;
mode_cmd.height = plane_config->fb->base.height;
mode_cmd.pitches[0] = plane_config->fb->base.pitches[0];
mutex_lock(&dev->struct_mutex);
if (intel_framebuffer_init(dev, plane_config->fb, &mode_cmd, obj)) {
DRM_DEBUG_KMS("intel fb init failed\n");
goto out_unref_obj;
}
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG_KMS("plane fb obj %p\n", plane_config->fb->obj);
return;
out_unref_obj:
drm_gem_object_unreference(&obj->base);
mutex_unlock(&dev->struct_mutex);
}
static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
int x, int y)
{
......@@ -11033,6 +11097,7 @@ void intel_modeset_init(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
int sprite, ret;
enum pipe pipe;
struct intel_crtc *crtc;
drm_mode_config_init(dev);
......@@ -11095,6 +11160,33 @@ void intel_modeset_init(struct drm_device *dev)
mutex_lock(&dev->mode_config.mutex);
intel_modeset_setup_hw_state(dev, false);
mutex_unlock(&dev->mode_config.mutex);
list_for_each_entry(crtc, &dev->mode_config.crtc_list,
base.head) {
if (!crtc->active)
continue;
#if IS_ENABLED(CONFIG_FB)
/*
* We don't have a good way of freeing the buffer w/o the FB
* layer owning it...
* Note that reserving the BIOS fb up front prevents us
* from stuffing other stolen allocations like the ring
* on top. This prevents some ugliness at boot time, and
* can even allow for smooth boot transitions if the BIOS
* fb is large enough for the active pipe configuration.
*/
if (dev_priv->display.get_plane_config) {
dev_priv->display.get_plane_config(crtc,
&crtc->plane_config);
/*
* If the fb is shared between multiple heads, we'll
* just get the first one.
*/
intel_alloc_plane_obj(crtc, &crtc->plane_config);
}
#endif
}
}
static void
......
......@@ -218,6 +218,13 @@ typedef struct dpll {
int p;
} intel_clock_t;
struct intel_plane_config {
struct intel_framebuffer *fb; /* ends up managed by intel_fbdev.c */
bool tiled;
int size;
u32 base;
};
struct intel_crtc_config {
/**
* quirks - bitfield with hw state readout quirks
......@@ -366,6 +373,7 @@ struct intel_crtc {
int16_t cursor_width, cursor_height;
bool cursor_visible;
struct intel_plane_config plane_config;
struct intel_crtc_config config;
struct intel_crtc_config *new_config;
bool new_enabled;
......@@ -740,6 +748,7 @@ intel_display_port_power_domain(struct intel_encoder *intel_encoder);
int valleyview_get_vco(struct drm_i915_private *dev_priv);
void intel_mode_from_pipe_config(struct drm_display_mode *mode,
struct intel_crtc_config *pipe_config);
int intel_format_to_fourcc(int format);
/* intel_dp.c */
void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
......
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