90,6 → 90,7 |
{ |
struct intel_fbdev *ifbdev = |
container_of(helper, struct intel_fbdev, helper); |
struct drm_framebuffer *fb; |
struct drm_device *dev = helper->dev; |
struct drm_mode_fb_cmd2 mode_cmd = {}; |
struct drm_i915_gem_object *obj; |
115,24 → 116,27 |
ret = -ENOMEM; |
goto out; |
} |
obj->has_global_gtt_mapping = 0; |
obj->stride = mode_cmd.pitches[0]; |
|
/* Flush everything out, we'll be doing GTT only from now on */ |
ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); |
if (ret) { |
DRM_ERROR("failed to pin fb: %d\n", ret); |
DRM_ERROR("failed to pin obj: %d\n", ret); |
goto out_unref; |
} |
|
ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); |
if (ret) |
fb = __intel_framebuffer_create(dev, &mode_cmd, obj); |
if (IS_ERR(fb)) { |
ret = PTR_ERR(fb); |
goto out_unpin; |
} |
|
ifbdev->fb = to_intel_framebuffer(fb); |
|
return 0; |
|
out_unpin: |
i915_gem_object_unpin(obj); |
i915_gem_object_ggtt_unpin(obj); |
out_unref: |
drm_gem_object_unreference(&obj->base); |
out: |
144,7 → 148,7 |
{ |
struct intel_fbdev *ifbdev = |
container_of(helper, struct intel_fbdev, helper); |
struct intel_framebuffer *intel_fb = &ifbdev->ifb; |
struct intel_framebuffer *intel_fb = ifbdev->fb; |
struct drm_device *dev = helper->dev; |
struct drm_i915_private *dev_priv = dev->dev_private; |
struct fb_info *info; |
151,16 → 155,29 |
struct drm_framebuffer *fb; |
struct drm_i915_gem_object *obj; |
int size, ret; |
bool prealloc = false; |
|
mutex_lock(&dev->struct_mutex); |
|
if (!intel_fb->obj) { |
if (intel_fb && |
(sizes->fb_width > intel_fb->base.width || |
sizes->fb_height > intel_fb->base.height)) { |
DRM_DEBUG_KMS("BIOS fb too small (%dx%d), we require (%dx%d)," |
" releasing it\n", |
intel_fb->base.width, intel_fb->base.height, |
sizes->fb_width, sizes->fb_height); |
drm_framebuffer_unreference(&intel_fb->base); |
intel_fb = ifbdev->fb = NULL; |
} |
if (!intel_fb || WARN_ON(!intel_fb->obj)) { |
DRM_DEBUG_KMS("no BIOS fb, allocating a new one\n"); |
ret = intelfb_alloc(helper, sizes); |
if (ret) |
goto out_unlock; |
intel_fb = ifbdev->fb; |
} else { |
DRM_DEBUG_KMS("re-using BIOS fb\n"); |
prealloc = true; |
sizes->fb_width = intel_fb->base.width; |
sizes->fb_height = intel_fb->base.height; |
} |
176,7 → 193,7 |
|
info->par = helper; |
|
fb = &ifbdev->ifb.base; |
fb = &ifbdev->fb->base; |
|
ifbdev->helper.fb = fb; |
ifbdev->helper.fbdev = info; |
215,7 → 232,7 |
return 0; |
|
out_unpin: |
i915_gem_object_unpin(obj); |
i915_gem_object_ggtt_unpin(obj); |
drm_gem_object_unreference(&obj->base); |
out_unlock: |
mutex_unlock(&dev->struct_mutex); |
243,13 → 260,342 |
*blue = intel_crtc->lut_b[regno] << 8; |
} |
|
static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
static struct drm_fb_helper_crtc * |
intel_fb_helper_crtc(struct drm_fb_helper *fb_helper, struct drm_crtc *crtc) |
{ |
int i; |
|
for (i = 0; i < fb_helper->crtc_count; i++) |
if (fb_helper->crtc_info[i].mode_set.crtc == crtc) |
return &fb_helper->crtc_info[i]; |
|
return NULL; |
} |
|
/* |
* Try to read the BIOS display configuration and use it for the initial |
* fb configuration. |
* |
* The BIOS or boot loader will generally create an initial display |
* configuration for us that includes some set of active pipes and displays. |
* This routine tries to figure out which pipes and connectors are active |
* and stuffs them into the crtcs and modes array given to us by the |
* drm_fb_helper code. |
* |
* The overall sequence is: |
* intel_fbdev_init - from driver load |
* intel_fbdev_init_bios - initialize the intel_fbdev using BIOS data |
* drm_fb_helper_init - build fb helper structs |
* drm_fb_helper_single_add_all_connectors - more fb helper structs |
* intel_fbdev_initial_config - apply the config |
* drm_fb_helper_initial_config - call ->probe then register_framebuffer() |
* drm_setup_crtcs - build crtc config for fbdev |
* intel_fb_initial_config - find active connectors etc |
* drm_fb_helper_single_fb_probe - set up fbdev |
* intelfb_create - re-use or alloc fb, build out fbdev structs |
* |
* Note that we don't make special consideration whether we could actually |
* switch to the selected modes without a full modeset. E.g. when the display |
* is in VGA mode we need to recalculate watermarks and set a new high-res |
* framebuffer anyway. |
*/ |
static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, |
struct drm_fb_helper_crtc **crtcs, |
struct drm_display_mode **modes, |
bool *enabled, int width, int height) |
{ |
struct drm_device *dev = fb_helper->dev; |
int i, j; |
bool *save_enabled; |
bool fallback = true; |
int num_connectors_enabled = 0; |
int num_connectors_detected = 0; |
|
/* |
* If the user specified any force options, just bail here |
* and use that config. |
*/ |
for (i = 0; i < fb_helper->connector_count; i++) { |
struct drm_fb_helper_connector *fb_conn; |
struct drm_connector *connector; |
|
fb_conn = fb_helper->connector_info[i]; |
connector = fb_conn->connector; |
|
if (!enabled[i]) |
continue; |
|
if (connector->force != DRM_FORCE_UNSPECIFIED) |
return false; |
} |
|
save_enabled = kcalloc(dev->mode_config.num_connector, sizeof(bool), |
GFP_KERNEL); |
if (!save_enabled) |
return false; |
|
memcpy(save_enabled, enabled, dev->mode_config.num_connector); |
|
for (i = 0; i < fb_helper->connector_count; i++) { |
struct drm_fb_helper_connector *fb_conn; |
struct drm_connector *connector; |
struct drm_encoder *encoder; |
struct drm_fb_helper_crtc *new_crtc; |
|
fb_conn = fb_helper->connector_info[i]; |
connector = fb_conn->connector; |
|
if (connector->status == connector_status_connected) |
num_connectors_detected++; |
|
if (!enabled[i]) { |
DRM_DEBUG_KMS("connector %s not enabled, skipping\n", |
connector->name); |
continue; |
} |
|
encoder = connector->encoder; |
if (!encoder || WARN_ON(!encoder->crtc)) { |
DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n", |
connector->name); |
enabled[i] = false; |
continue; |
} |
|
num_connectors_enabled++; |
|
new_crtc = intel_fb_helper_crtc(fb_helper, encoder->crtc); |
|
/* |
* Make sure we're not trying to drive multiple connectors |
* with a single CRTC, since our cloning support may not |
* match the BIOS. |
*/ |
for (j = 0; j < fb_helper->connector_count; j++) { |
if (crtcs[j] == new_crtc) { |
DRM_DEBUG_KMS("fallback: cloned configuration\n"); |
fallback = true; |
goto out; |
} |
} |
|
DRM_DEBUG_KMS("looking for cmdline mode on connector %s\n", |
connector->name); |
|
/* go for command line mode first */ |
modes[i] = drm_pick_cmdline_mode(fb_conn, width, height); |
|
/* try for preferred next */ |
if (!modes[i]) { |
DRM_DEBUG_KMS("looking for preferred mode on connector %s\n", |
connector->name); |
modes[i] = drm_has_preferred_mode(fb_conn, width, |
height); |
} |
|
/* No preferred mode marked by the EDID? Are there any modes? */ |
if (!modes[i] && !list_empty(&connector->modes)) { |
DRM_DEBUG_KMS("using first mode listed on connector %s\n", |
connector->name); |
modes[i] = list_first_entry(&connector->modes, |
struct drm_display_mode, |
head); |
} |
|
/* last resort: use current mode */ |
if (!modes[i]) { |
/* |
* IMPORTANT: We want to use the adjusted mode (i.e. |
* after the panel fitter upscaling) as the initial |
* config, not the input mode, which is what crtc->mode |
* usually contains. But since our current fastboot |
* code puts a mode derived from the post-pfit timings |
* into crtc->mode this works out correctly. We don't |
* use hwmode anywhere right now, so use it for this |
* since the fb helper layer wants a pointer to |
* something we own. |
*/ |
DRM_DEBUG_KMS("looking for current mode on connector %s\n", |
connector->name); |
intel_mode_from_pipe_config(&encoder->crtc->hwmode, |
&to_intel_crtc(encoder->crtc)->config); |
modes[i] = &encoder->crtc->hwmode; |
} |
crtcs[i] = new_crtc; |
|
DRM_DEBUG_KMS("connector %s on pipe %c [CRTC:%d]: %dx%d%s\n", |
connector->name, |
pipe_name(to_intel_crtc(encoder->crtc)->pipe), |
encoder->crtc->base.id, |
modes[i]->hdisplay, modes[i]->vdisplay, |
modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" :""); |
|
fallback = false; |
} |
|
/* |
* If the BIOS didn't enable everything it could, fall back to have the |
* same user experiencing of lighting up as much as possible like the |
* fbdev helper library. |
*/ |
if (num_connectors_enabled != num_connectors_detected && |
num_connectors_enabled < INTEL_INFO(dev)->num_pipes) { |
DRM_DEBUG_KMS("fallback: Not all outputs enabled\n"); |
DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled, |
num_connectors_detected); |
fallback = true; |
} |
|
out: |
if (fallback) { |
DRM_DEBUG_KMS("Not using firmware configuration\n"); |
memcpy(enabled, save_enabled, dev->mode_config.num_connector); |
kfree(save_enabled); |
return false; |
} |
|
kfree(save_enabled); |
return true; |
} |
|
static const struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
.initial_config = intel_fb_initial_config, |
.gamma_set = intel_crtc_fb_gamma_set, |
.gamma_get = intel_crtc_fb_gamma_get, |
.fb_probe = intelfb_create, |
}; |
|
/* |
* Build an intel_fbdev struct using a BIOS allocated framebuffer, if possible. |
* The core display code will have read out the current plane configuration, |
* so we use that to figure out if there's an object for us to use as the |
* fb, and if so, we re-use it for the fbdev configuration. |
* |
* Note we only support a single fb shared across pipes for boot (mostly for |
* fbcon), so we just find the biggest and use that. |
*/ |
static bool intel_fbdev_init_bios(struct drm_device *dev, |
struct intel_fbdev *ifbdev) |
{ |
struct intel_framebuffer *fb = NULL; |
struct drm_crtc *crtc; |
struct intel_crtc *intel_crtc; |
struct intel_plane_config *plane_config = NULL; |
unsigned int max_size = 0; |
|
if (!i915.fastboot) |
return false; |
|
/* Find the largest fb */ |
for_each_crtc(dev, crtc) { |
intel_crtc = to_intel_crtc(crtc); |
|
if (!intel_crtc->active || !crtc->primary->fb) { |
DRM_DEBUG_KMS("pipe %c not active or no fb, skipping\n", |
pipe_name(intel_crtc->pipe)); |
continue; |
} |
|
if (intel_crtc->plane_config.size > max_size) { |
DRM_DEBUG_KMS("found possible fb from plane %c\n", |
pipe_name(intel_crtc->pipe)); |
plane_config = &intel_crtc->plane_config; |
fb = to_intel_framebuffer(crtc->primary->fb); |
max_size = plane_config->size; |
} |
} |
|
if (!fb) { |
DRM_DEBUG_KMS("no active fbs found, not using BIOS config\n"); |
goto out; |
} |
|
/* Now make sure all the pipes will fit into it */ |
for_each_crtc(dev, crtc) { |
unsigned int cur_size; |
|
intel_crtc = to_intel_crtc(crtc); |
|
if (!intel_crtc->active) { |
DRM_DEBUG_KMS("pipe %c not active, skipping\n", |
pipe_name(intel_crtc->pipe)); |
continue; |
} |
|
DRM_DEBUG_KMS("checking plane %c for BIOS fb\n", |
pipe_name(intel_crtc->pipe)); |
|
/* |
* See if the plane fb we found above will fit on this |
* pipe. Note we need to use the selected fb's pitch and bpp |
* rather than the current pipe's, since they differ. |
*/ |
cur_size = intel_crtc->config.adjusted_mode.crtc_hdisplay; |
cur_size = cur_size * fb->base.bits_per_pixel / 8; |
if (fb->base.pitches[0] < cur_size) { |
DRM_DEBUG_KMS("fb not wide enough for plane %c (%d vs %d)\n", |
pipe_name(intel_crtc->pipe), |
cur_size, fb->base.pitches[0]); |
plane_config = NULL; |
fb = NULL; |
break; |
} |
|
cur_size = intel_crtc->config.adjusted_mode.crtc_vdisplay; |
cur_size = ALIGN(cur_size, plane_config->tiled ? (IS_GEN2(dev) ? 16 : 8) : 1); |
cur_size *= fb->base.pitches[0]; |
DRM_DEBUG_KMS("pipe %c area: %dx%d, bpp: %d, size: %d\n", |
pipe_name(intel_crtc->pipe), |
intel_crtc->config.adjusted_mode.crtc_hdisplay, |
intel_crtc->config.adjusted_mode.crtc_vdisplay, |
fb->base.bits_per_pixel, |
cur_size); |
|
if (cur_size > max_size) { |
DRM_DEBUG_KMS("fb not big enough for plane %c (%d vs %d)\n", |
pipe_name(intel_crtc->pipe), |
cur_size, max_size); |
plane_config = NULL; |
fb = NULL; |
break; |
} |
|
DRM_DEBUG_KMS("fb big enough for plane %c (%d >= %d)\n", |
pipe_name(intel_crtc->pipe), |
max_size, cur_size); |
} |
|
if (!fb) { |
DRM_DEBUG_KMS("BIOS fb not suitable for all pipes, not using\n"); |
goto out; |
} |
|
ifbdev->preferred_bpp = fb->base.bits_per_pixel; |
ifbdev->fb = fb; |
|
drm_framebuffer_reference(&ifbdev->fb->base); |
|
/* Final pass to check if any active pipes don't have fbs */ |
for_each_crtc(dev, crtc) { |
intel_crtc = to_intel_crtc(crtc); |
|
if (!intel_crtc->active) |
continue; |
|
WARN(!crtc->primary->fb, |
"re-used BIOS config but lost an fb on crtc %d\n", |
crtc->base.id); |
} |
|
|
DRM_DEBUG_KMS("using BIOS fb for initial console\n"); |
return true; |
|
out: |
|
return false; |
} |
|
int intel_fbdev_init(struct drm_device *dev) |
{ |
struct intel_fbdev *ifbdev; |
256,21 → 602,26 |
struct drm_i915_private *dev_priv = dev->dev_private; |
int ret; |
|
ifbdev = kzalloc(sizeof(*ifbdev), GFP_KERNEL); |
if (!ifbdev) |
if (WARN_ON(INTEL_INFO(dev)->num_pipes == 0)) |
return -ENODEV; |
|
ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); |
if (ifbdev == NULL) |
return -ENOMEM; |
|
dev_priv->fbdev = ifbdev; |
ifbdev->helper.funcs = &intel_fb_helper_funcs; |
drm_fb_helper_prepare(dev, &ifbdev->helper, &intel_fb_helper_funcs); |
|
if (!intel_fbdev_init_bios(dev, ifbdev)) |
ifbdev->preferred_bpp = 32; |
|
ret = drm_fb_helper_init(dev, &ifbdev->helper, |
INTEL_INFO(dev)->num_pipes, |
4); |
INTEL_INFO(dev)->num_pipes, 4); |
if (ret) { |
kfree(ifbdev); |
return ret; |
} |
|
dev_priv->fbdev = ifbdev; |
drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
|
return 0; |
279,9 → 630,10 |
void intel_fbdev_initial_config(struct drm_device *dev) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
struct intel_fbdev *ifbdev = dev_priv->fbdev; |
|
/* Due to peculiar init order wrt to hpd handling this is separate. */ |
drm_fb_helper_initial_config(&dev_priv->fbdev->helper, 32); |
drm_fb_helper_initial_config(&ifbdev->helper, ifbdev->preferred_bpp); |
} |
|
|
288,5 → 640,6 |
void intel_fbdev_output_poll_changed(struct drm_device *dev) |
{ |
struct drm_i915_private *dev_priv = dev->dev_private; |
if (dev_priv->fbdev) |
drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); |
} |