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path: root/drivers/gpu/drm/i915/intel_fb.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_fb.c')
-rw-r--r--drivers/gpu/drm/i915/intel_fb.c737
1 files changed, 28 insertions, 709 deletions
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 1d30802e773e..7ba4a232a97f 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->pitch);
+ 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);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.