diff options
author | Dave Airlie <airlied@redhat.com> | 2009-08-28 15:46:53 +1000 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2009-08-31 09:09:31 +1000 |
commit | 785b93ef8c309730c2de84ce9c229e40e2d01480 (patch) | |
tree | ea1b26781fc49cef92d439fdaffa41af8c165778 /drivers/gpu/drm/i915 | |
parent | 7dc482dfeeeefcfd000d4271c4626937406756d7 (diff) | |
download | op-kernel-dev-785b93ef8c309730c2de84ce9c229e40e2d01480.zip op-kernel-dev-785b93ef8c309730c2de84ce9c229e40e2d01480.tar.gz |
drm/kms: move driver specific fb common code to helper functions (v2)
Initially I always meant this code to be shared, but things
ran away from me before I got to it.
This refactors the i915 and radeon kms fbdev interaction layers
out into generic helpers + driver specific pieces.
It moves all the panic/sysrq enhancements to the core file,
and stores a linked list of kernel fbs. This could possibly be
improved to only store the fb which has fbcon on it for panics
etc.
radeon retains some specific codes used for a big endian
workaround.
changes:
fix oops in v1
fix freeing path for crtc_info
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 3 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/intel_fb.c | 737 |
4 files changed, 30 insertions, 725 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 544d889..c628c36 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -29,6 +29,7 @@ #include "drmP.h" #include "drm.h" #include "drm_crtc_helper.h" +#include "drm_fb_helper.h" #include "intel_drv.h" #include "i915_drm.h" #include "i915_drv.h" @@ -1347,7 +1348,7 @@ void i915_driver_lastclose(struct drm_device * dev) drm_i915_private_t *dev_priv = dev->dev_private; if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) { - intelfb_restore(); + drm_fb_helper_restore(); return; } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d6fce21..5fb7a4f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3060,8 +3060,6 @@ static void intel_crtc_destroy(struct drm_crtc *crtc) { struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - if (intel_crtc->mode_set.mode) - drm_mode_destroy(crtc->dev, intel_crtc->mode_set.mode); drm_crtc_cleanup(crtc); kfree(intel_crtc); } @@ -3107,16 +3105,6 @@ static void intel_crtc_init(struct drm_device *dev, int pipe) intel_crtc->cursor_addr = 0; intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF; drm_crtc_helper_add(&intel_crtc->base, &intel_helper_funcs); - - intel_crtc->mode_set.crtc = &intel_crtc->base; - intel_crtc->mode_set.connectors = (struct drm_connector **)(intel_crtc + 1); - intel_crtc->mode_set.num_connectors = 0; - - if (i915_fbpercrtc) { - - - - } } int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data, diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index d6f92ea..38910f8 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -96,9 +96,6 @@ struct intel_crtc { uint32_t cursor_addr; u8 lut_r[256], lut_g[256], lut_b[256]; int dpms_mode; - struct intel_framebuffer *fbdev_fb; - /* a mode_set for fbdev users on this crtc */ - struct drm_mode_set mode_set; }; #define to_intel_crtc(x) container_of(x, struct intel_crtc, base) diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index 1d30802..3041530 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -39,339 +39,34 @@ #include "drmP.h" #include "drm.h" #include "drm_crtc.h" +#include "drm_fb_helper.h" #include "intel_drv.h" #include "i915_drm.h" #include "i915_drv.h" struct intelfb_par { - struct drm_device *dev; - struct drm_display_mode *our_mode; + struct drm_fb_helper helper; struct intel_framebuffer *intel_fb; - int crtc_count; - /* crtc currently bound to this */ - uint32_t crtc_ids[2]; + struct drm_display_mode *our_mode; }; -static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, - struct fb_info *info) -{ - struct intelfb_par *par = info->par; - struct drm_device *dev = par->dev; - struct drm_crtc *crtc; - int i; - - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct drm_mode_set *modeset = &intel_crtc->mode_set; - struct drm_framebuffer *fb = modeset->fb; - - for (i = 0; i < par->crtc_count; i++) - if (crtc->base.id == par->crtc_ids[i]) - break; - - if (i == par->crtc_count) - continue; - - - if (regno > 255) - return 1; - - if (fb->depth == 8) { - intel_crtc_fb_gamma_set(crtc, red, green, blue, regno); - return 0; - } - - if (regno < 16) { - switch (fb->depth) { - case 15: - fb->pseudo_palette[regno] = ((red & 0xf800) >> 1) | - ((green & 0xf800) >> 6) | - ((blue & 0xf800) >> 11); - break; - case 16: - fb->pseudo_palette[regno] = (red & 0xf800) | - ((green & 0xfc00) >> 5) | - ((blue & 0xf800) >> 11); - break; - case 24: - case 32: - fb->pseudo_palette[regno] = ((red & 0xff00) << 8) | - (green & 0xff00) | - ((blue & 0xff00) >> 8); - break; - } - } - } - return 0; -} - -static int intelfb_check_var(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - struct intelfb_par *par = info->par; - struct intel_framebuffer *intel_fb = par->intel_fb; - struct drm_framebuffer *fb = &intel_fb->base; - int depth; - - if (var->pixclock == -1 || !var->pixclock) - return -EINVAL; - - /* Need to resize the fb object !!! */ - if (var->xres > fb->width || var->yres > fb->height) { - DRM_ERROR("Requested width/height is greater than current fb object %dx%d > %dx%d\n",var->xres,var->yres,fb->width,fb->height); - DRM_ERROR("Need resizing code.\n"); - return -EINVAL; - } - - switch (var->bits_per_pixel) { - case 16: - depth = (var->green.length == 6) ? 16 : 15; - break; - case 32: - depth = (var->transp.length > 0) ? 32 : 24; - break; - default: - depth = var->bits_per_pixel; - break; - } - - switch (depth) { - case 8: - var->red.offset = 0; - var->green.offset = 0; - var->blue.offset = 0; - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - var->transp.length = 0; - var->transp.offset = 0; - break; - case 15: - var->red.offset = 10; - var->green.offset = 5; - var->blue.offset = 0; - var->red.length = 5; - var->green.length = 5; - var->blue.length = 5; - var->transp.length = 1; - var->transp.offset = 15; - break; - case 16: - var->red.offset = 11; - var->green.offset = 5; - var->blue.offset = 0; - var->red.length = 5; - var->green.length = 6; - var->blue.length = 5; - var->transp.length = 0; - var->transp.offset = 0; - break; - case 24: - var->red.offset = 16; - var->green.offset = 8; - var->blue.offset = 0; - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - var->transp.length = 0; - var->transp.offset = 0; - break; - case 32: - var->red.offset = 16; - var->green.offset = 8; - var->blue.offset = 0; - var->red.length = 8; - var->green.length = 8; - var->blue.length = 8; - var->transp.length = 8; - var->transp.offset = 24; - break; - default: - return -EINVAL; - } - - return 0; -} - -/* this will let fbcon do the mode init */ -/* FIXME: take mode config lock? */ -static int intelfb_set_par(struct fb_info *info) -{ - struct intelfb_par *par = info->par; - struct drm_device *dev = par->dev; - struct fb_var_screeninfo *var = &info->var; - int i; - - DRM_DEBUG("%d %d\n", var->xres, var->pixclock); - - if (var->pixclock != -1) { - - DRM_ERROR("PIXEL CLOCK SET\n"); - return -EINVAL; - } else { - struct drm_crtc *crtc; - int ret; - - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - - for (i = 0; i < par->crtc_count; i++) - if (crtc->base.id == par->crtc_ids[i]) - break; - - if (i == par->crtc_count) - continue; - - if (crtc->fb == intel_crtc->mode_set.fb) { - mutex_lock(&dev->mode_config.mutex); - ret = crtc->funcs->set_config(&intel_crtc->mode_set); - mutex_unlock(&dev->mode_config.mutex); - if (ret) - return ret; - } - } - return 0; - } -} - -static int intelfb_pan_display(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - struct intelfb_par *par = info->par; - struct drm_device *dev = par->dev; - struct drm_mode_set *modeset; - struct drm_crtc *crtc; - struct intel_crtc *intel_crtc; - int ret = 0; - int i; - - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - for (i = 0; i < par->crtc_count; i++) - if (crtc->base.id == par->crtc_ids[i]) - break; - - if (i == par->crtc_count) - continue; - - intel_crtc = to_intel_crtc(crtc); - modeset = &intel_crtc->mode_set; - - modeset->x = var->xoffset; - modeset->y = var->yoffset; - - if (modeset->num_connectors) { - mutex_lock(&dev->mode_config.mutex); - ret = crtc->funcs->set_config(modeset); - mutex_unlock(&dev->mode_config.mutex); - if (!ret) { - info->var.xoffset = var->xoffset; - info->var.yoffset = var->yoffset; - } - } - } - - return ret; -} - -static void intelfb_on(struct fb_info *info) -{ - struct intelfb_par *par = info->par; - struct drm_device *dev = par->dev; - struct drm_crtc *crtc; - struct drm_encoder *encoder; - int i; - - /* - * For each CRTC in this fb, find all associated encoders - * and turn them off, then turn off the CRTC. - */ - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; - - for (i = 0; i < par->crtc_count; i++) - if (crtc->base.id == par->crtc_ids[i]) - break; - - crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON); - - /* Found a CRTC on this fb, now find encoders */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - if (encoder->crtc == crtc) { - struct drm_encoder_helper_funcs *encoder_funcs; - encoder_funcs = encoder->helper_private; - encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON); - } - } - } -} - -static void intelfb_off(struct fb_info *info, int dpms_mode) -{ - struct intelfb_par *par = info->par; - struct drm_device *dev = par->dev; - struct drm_crtc *crtc; - struct drm_encoder *encoder; - int i; - - /* - * For each CRTC in this fb, find all associated encoders - * and turn them off, then turn off the CRTC. - */ - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; - - for (i = 0; i < par->crtc_count; i++) - if (crtc->base.id == par->crtc_ids[i]) - break; - - /* Found a CRTC on this fb, now find encoders */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { - if (encoder->crtc == crtc) { - struct drm_encoder_helper_funcs *encoder_funcs; - encoder_funcs = encoder->helper_private; - encoder_funcs->dpms(encoder, dpms_mode); - } - } - if (dpms_mode == DRM_MODE_DPMS_OFF) - crtc_funcs->dpms(crtc, dpms_mode); - } -} - -static int intelfb_blank(int blank, struct fb_info *info) -{ - switch (blank) { - case FB_BLANK_UNBLANK: - intelfb_on(info); - break; - case FB_BLANK_NORMAL: - intelfb_off(info, DRM_MODE_DPMS_STANDBY); - break; - case FB_BLANK_HSYNC_SUSPEND: - intelfb_off(info, DRM_MODE_DPMS_STANDBY); - break; - case FB_BLANK_VSYNC_SUSPEND: - intelfb_off(info, DRM_MODE_DPMS_SUSPEND); - break; - case FB_BLANK_POWERDOWN: - intelfb_off(info, DRM_MODE_DPMS_OFF); - break; - } - return 0; -} - static struct fb_ops intelfb_ops = { .owner = THIS_MODULE, - .fb_check_var = intelfb_check_var, - .fb_set_par = intelfb_set_par, - .fb_setcolreg = intelfb_setcolreg, + .fb_check_var = drm_fb_helper_check_var, + .fb_set_par = drm_fb_helper_set_par, + .fb_setcolreg = drm_fb_helper_setcolreg, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, - .fb_pan_display = intelfb_pan_display, - .fb_blank = intelfb_blank, + .fb_pan_display = drm_fb_helper_pan_display, + .fb_blank = drm_fb_helper_blank, }; +static struct drm_fb_helper_funcs intel_fb_helper_funcs = { + .gamma_set = intel_crtc_fb_gamma_set, +}; + + /** * Curretly it is assumed that the old framebuffer is reused. * @@ -412,25 +107,10 @@ int intelfb_resize(struct drm_device *dev, struct drm_crtc *crtc) } EXPORT_SYMBOL(intelfb_resize); -static struct drm_mode_set kernelfb_mode; - -static int intelfb_panic(struct notifier_block *n, unsigned long ununsed, - void *panic_str) -{ - DRM_ERROR("panic occurred, switching back to text console\n"); - - intelfb_restore(); - return 0; -} - -static struct notifier_block paniced = { - .notifier_call = intelfb_panic, -}; - static int intelfb_create(struct drm_device *dev, uint32_t fb_width, uint32_t fb_height, uint32_t surface_width, uint32_t surface_height, - struct intel_framebuffer **intel_fb_p) + struct drm_framebuffer **fb_p) { struct fb_info *info; struct intelfb_par *par; @@ -479,7 +159,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width, list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list); intel_fb = to_intel_framebuffer(fb); - *intel_fb_p = intel_fb; + *fb_p = fb; info = framebuffer_alloc(sizeof(struct intelfb_par), device); if (!info) { @@ -489,21 +169,19 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width, par = info->par; + par->helper.funcs = &intel_fb_helper_funcs; + par->helper.dev = dev; + ret = drm_fb_helper_init_crtc_count(&par->helper, 2, + INTELFB_CONN_LIMIT); + if (ret) + goto out_unref; + strcpy(info->fix.id, "inteldrmfb"); - info->fix.type = FB_TYPE_PACKED_PIXELS; - info->fix.visual = FB_VISUAL_TRUECOLOR; - info->fix.type_aux = 0; - info->fix.xpanstep = 1; /* doing it in hw */ - info->fix.ypanstep = 1; /* doing it in hw */ - info->fix.ywrapstep = 0; - info->fix.accel = FB_ACCEL_I830; - info->fix.type_aux = 0; info->flags = FBINFO_DEFAULT; info->fbops = &intelfb_ops; - info->fix.line_length = fb->pitch; /* setup aperture base/size for vesafb takeover */ info->aperture_base = dev->mode_config.fb_base; @@ -527,18 +205,8 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width, // memset(info->screen_base, 0, size); - info->pseudo_palette = fb->pseudo_palette; - info->var.xres_virtual = fb->width; - info->var.yres_virtual = fb->height; - info->var.bits_per_pixel = fb->bits_per_pixel; - info->var.xoffset = 0; - info->var.yoffset = 0; - info->var.activate = FB_ACTIVATE_NOW; - info->var.height = -1; - info->var.width = -1; - - info->var.xres = fb_width; - info->var.yres = fb_height; + drm_fb_helper_fill_fix(info, fb->depth); + drm_fb_helper_fill_var(info, fb, fb_width, fb_height); /* FIXME: we really shouldn't expose mmio space at all */ info->fix.mmio_start = pci_resource_start(dev->pdev, mmio_bar); @@ -550,64 +218,9 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width, info->pixmap.flags = FB_PIXMAP_SYSTEM; info->pixmap.scan_align = 1; - switch(fb->depth) { - case 8: - info->var.red.offset = 0; - info->var.green.offset = 0; - info->var.blue.offset = 0; - info->var.red.length = 8; /* 8bit DAC */ - info->var.green.length = 8; - info->var.blue.length = 8; - info->var.transp.offset = 0; - info->var.transp.length = 0; - break; - case 15: - info->var.red.offset = 10; - info->var.green.offset = 5; - info->var.blue.offset = 0; - info->var.red.length = 5; - info->var.green.length = 5; - info->var.blue.length = 5; - info->var.transp.offset = 15; - info->var.transp.length = 1; - break; - case 16: - info->var.red.offset = 11; - info->var.green.offset = 5; - info->var.blue.offset = 0; - info->var.red.length = 5; - info->var.green.length = 6; - info->var.blue.length = 5; - info->var.transp.offset = 0; - break; - case 24: - info->var.red.offset = 16; - info->var.green.offset = 8; - info->var.blue.offset = 0; - info->var.red.length = 8; - info->var.green.length = 8; - info->var.blue.length = 8; - info->var.transp.offset = 0; - info->var.transp.length = 0; - break; - case 32: - info->var.red.offset = 16; - info->var.green.offset = 8; - info->var.blue.offset = 0; - info->var.red.length = 8; - info->var.green.length = 8; - info->var.blue.length = 8; - info->var.transp.offset = 24; - info->var.transp.length = 8; - break; - default: - break; - } - fb->fbdev = info; par->intel_fb = intel_fb; - par->dev = dev; /* To allow resizeing without swapping buffers */ DRM_DEBUG("allocated %dx%d fb: 0x%08x, bo %p\n", intel_fb->base.width, @@ -625,307 +238,12 @@ out: return ret; } -static int intelfb_multi_fb_probe_crtc(struct drm_device *dev, struct drm_crtc *crtc) -{ - struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct intel_framebuffer *intel_fb; - struct drm_framebuffer *fb; - struct drm_connector *connector; - struct fb_info *info; - struct intelfb_par *par; - struct drm_mode_set *modeset; - unsigned int width, height; - int new_fb = 0; - int ret, i, conn_count; - - if (!drm_helper_crtc_in_use(crtc)) - return 0; - - if (!crtc->desired_mode) - return 0; - - width = crtc->desired_mode->hdisplay; - height = crtc->desired_mode->vdisplay; - - /* is there an fb bound to this crtc already */ - if (!intel_crtc->mode_set.fb) { - ret = intelfb_create(dev, width, height, width, height, &intel_fb); - if (ret) - return -EINVAL; - new_fb = 1; - } else { - fb = intel_crtc->mode_set.fb; - intel_fb = to_intel_framebuffer(fb); - if ((intel_fb->base.width < width) || (intel_fb->base.height < height)) - return -EINVAL; - } - - info = intel_fb->base.fbdev; - par = info->par; - - modeset = &intel_crtc->mode_set; - modeset->fb = &intel_fb->base; - conn_count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - if (connector->encoder) - if (connector->encoder->crtc == modeset->crtc) { - modeset->connectors[conn_count] = connector; - conn_count++; - if (conn_count > INTELFB_CONN_LIMIT) - BUG(); - } - } - - for (i = conn_count; i < INTELFB_CONN_LIMIT; i++) - modeset->connectors[i] = NULL; - - par->crtc_ids[0] = crtc->base.id; - - modeset->num_connectors = conn_count; - if (modeset->crtc->desired_mode) { - if (modeset->mode) - drm_mode_destroy(dev, modeset->mode); - modeset->mode = drm_mode_duplicate(dev, - modeset->crtc->desired_mode); - } - - par->crtc_count = 1; - - if (new_fb) { - info->var.pixclock = -1; - if (register_framebuffer(info) < 0) - return -EINVAL; - } else - intelfb_set_par(info); - - DRM_INFO("fb%d: %s frame buffer device\n", info->node, - info->fix.id); - - /* Switch back to kernel console on panic */ - kernelfb_mode = *modeset; - atomic_notifier_chain_register(&panic_notifier_list, &paniced); - DRM_DEBUG("registered panic notifier\n"); - - return 0; -} - -static int intelfb_multi_fb_probe(struct drm_device *dev) -{ - - struct drm_crtc *crtc; - int ret = 0; - - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - ret = intelfb_multi_fb_probe_crtc(dev, crtc); - if (ret) - return ret; - } - return ret; -} - -static int intelfb_single_fb_probe(struct drm_device *dev) -{ - struct drm_crtc *crtc; - struct drm_connector *connector; - unsigned int fb_width = (unsigned)-1, fb_height = (unsigned)-1; - unsigned int surface_width = 0, surface_height = 0; - int new_fb = 0; - int crtc_count = 0; - int ret, i, conn_count = 0; - struct intel_framebuffer *intel_fb; - struct fb_info *info; - struct intelfb_par *par; - struct drm_mode_set *modeset = NULL; - - DRM_DEBUG("\n"); - - /* Get a count of crtcs now in use and new min/maxes width/heights */ - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - if (!drm_helper_crtc_in_use(crtc)) - continue; - - crtc_count++; - if (!crtc->desired_mode) - continue; - - /* Smallest mode determines console size... */ - if (crtc->desired_mode->hdisplay < fb_width) - fb_width = crtc->desired_mode->hdisplay; - - if (crtc->desired_mode->vdisplay < fb_height) - fb_height = crtc->desired_mode->vdisplay; - - /* ... but largest for memory allocation dimensions */ - if (crtc->desired_mode->hdisplay > surface_width) - surface_width = crtc->desired_mode->hdisplay; - - if (crtc->desired_mode->vdisplay > surface_height) - surface_height = crtc->desired_mode->vdisplay; - } - - if (crtc_count == 0 || fb_width == -1 || fb_height == -1) { - /* hmm everyone went away - assume VGA cable just fell out - and will come back later. */ - DRM_DEBUG("no CRTCs available?\n"); - return 0; - } - -//fail - /* Find the fb for our new config */ - if (list_empty(&dev->mode_config.fb_kernel_list)) { - DRM_DEBUG("creating new fb (console size %dx%d, " - "buffer size %dx%d)\n", fb_width, fb_height, - surface_width, surface_height); - ret = intelfb_create(dev, fb_width, fb_height, surface_width, - surface_height, &intel_fb); - if (ret) - return -EINVAL; - new_fb = 1; - } else { - struct drm_framebuffer *fb; - - fb = list_first_entry(&dev->mode_config.fb_kernel_list, - struct drm_framebuffer, filp_head); - intel_fb = to_intel_framebuffer(fb); - - /* if someone hotplugs something bigger than we have already - * allocated, we are pwned. As really we can't resize an - * fbdev that is in the wild currently due to fbdev not really - * being designed for the lower layers moving stuff around - * under it. - * - so in the grand style of things - punt. - */ - if ((fb->width < surface_width) || - (fb->height < surface_height)) { - DRM_ERROR("fb not large enough for console\n"); - return -EINVAL; - } - } -// fail - - info = intel_fb->base.fbdev; - par = info->par; - - crtc_count = 0; - /* - * For each CRTC, set up the connector list for the CRTC's mode - * set configuration. - */ - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { - struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - - modeset = &intel_crtc->mode_set; - modeset->fb = &intel_fb->base; - conn_count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, - head) { - if (!connector->encoder) - continue; - - if(connector->encoder->crtc == modeset->crtc) { - modeset->connectors[conn_count++] = connector; - if (conn_count > INTELFB_CONN_LIMIT) - BUG(); - } - } - - /* Zero out remaining connector pointers */ - for (i = conn_count; i < INTELFB_CONN_LIMIT; i++) - modeset->connectors[i] = NULL; - - par->crtc_ids[crtc_count++] = crtc->base.id; - - modeset->num_connectors = conn_count; - if (modeset->crtc->desired_mode) { - if (modeset->mode) - drm_mode_destroy(dev, modeset->mode); - modeset->mode = drm_mode_duplicate(dev, - modeset->crtc->desired_mode); - } - } - par->crtc_count = crtc_count; - - if (new_fb) { - info->var.pixclock = -1; - if (register_framebuffer(info) < 0) - return -EINVAL; - } else - intelfb_set_par(info); - - DRM_INFO("fb%d: %s frame buffer device\n", info->node, - info->fix.id); - - /* Switch back to kernel console on panic */ - kernelfb_mode = *modeset; - atomic_notifier_chain_register(&panic_notifier_list, &paniced); - DRM_DEBUG("registered panic notifier\n"); - - return 0; -} - -/** - * intelfb_restore - restore the framebuffer console (kernel) config - * - * Restore's the kernel's fbcon mode, used for lastclose & panic paths. - */ -void intelfb_restore(void) -{ - int ret; - if ((ret = drm_crtc_helper_set_config(&kernelfb_mode)) != 0) { - DRM_ERROR("Failed to restore crtc configuration: %d\n", - ret); - } -} - -static void intelfb_restore_work_fn(struct work_struct *ignored) -{ - intelfb_restore(); -} -static DECLARE_WORK(intelfb_restore_work, intelfb_restore_work_fn); - -static void intelfb_sysrq(int dummy1, struct tty_struct *dummy3) -{ - schedule_work(&intelfb_restore_work); -} - -static struct sysrq_key_op sysrq_intelfb_restore_op = { - .handler = intelfb_sysrq, - .help_msg = "force-fb(V)", - .action_msg = "Restore framebuffer console", -}; - int intelfb_probe(struct drm_device *dev) { int ret; DRM_DEBUG("\n"); - - /* something has changed in the lower levels of hell - deal with it - here */ - - /* two modes : a) 1 fb to rule all crtcs. - b) one fb per crtc. - two actions 1) new connected device - 2) device removed. - case a/1 : if the fb surface isn't big enough - resize the surface fb. - if the fb size isn't big enough - resize fb into surface. - if everything big enough configure the new crtc/etc. - case a/2 : undo the configuration - possibly resize down the fb to fit the new configuration. - case b/1 : see if it is on a new crtc - setup a new fb and add it. - case b/2 : teardown the new fb. - */ - - /* mode a first */ - /* search for an fb */ - if (i915_fbpercrtc == 1) { - ret = intelfb_multi_fb_probe(dev); - } else { - ret = intelfb_single_fb_probe(dev); - } - - register_sysrq_key('v', &sysrq_intelfb_restore_op); - + ret = drm_fb_helper_single_fb_probe(dev, intelfb_create); return ret; } EXPORT_SYMBOL(intelfb_probe); @@ -940,13 +258,14 @@ int intelfb_remove(struct drm_device *dev, struct drm_framebuffer *fb) info = fb->fbdev; if (info) { + struct intelfb_par *par = info->par; unregister_framebuffer(info); iounmap(info->screen_base); + if (info->par) + drm_fb_helper_free(&par->helper); framebuffer_release(info); } - atomic_notifier_chain_unregister(&panic_notifier_list, &paniced); - memset(&kernelfb_mode, 0, sizeof(struct drm_mode_set)); return 0; } EXPORT_SYMBOL(intelfb_remove); |