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drm/kms: move driver specific fb common code to helper functions (v2)

Browse Source 
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>
This commit is contained in:
Dave Airlie 2009-08-28 15:46:53 +10:00
parent 7dc482dfee
commit 785b93ef8c
11 changed files with 906 additions and 1308 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/Makefile
View File

@ -11,7 +11,8 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \
drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
drm_crtc.o drm_crtc_helper.o drm_modes.o drm_edid.o \
drm_info.o drm_debugfs.o drm_encoder_slave.o
drm_info.o drm_debugfs.o drm_encoder_slave.o \
drm_fb_helper.o
drm-$(CONFIG_COMPAT) += drm_ioc32.o

697
drivers/gpu/drm/drm_fb_helper.c Normal file
View File

@ -0,0 +1,697 @@
/*
* Copyright (c) 2006-2009 Red Hat Inc.
* Copyright (c) 2006-2008 Intel Corporation
* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
*
* DRM framebuffer helper functions
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
* Authors:
* Dave Airlie <airlied@linux.ie>
* Jesse Barnes <jesse.barnes@intel.com>
*/
#include <linux/sysrq.h>
#include <linux/fb.h>
#include "drmP.h"
#include "drm_crtc.h"
#include "drm_fb_helper.h"
#include "drm_crtc_helper.h"
static LIST_HEAD(kernel_fb_helper_list);
bool drm_fb_helper_force_kernel_mode(void)
{
int i = 0;
bool ret, error = false;
struct drm_fb_helper *helper;
if (list_empty(&kernel_fb_helper_list))
return false;
list_for_each_entry(helper, &kernel_fb_helper_list, kernel_fb_list) {
for (i = 0; i < helper->crtc_count; i++) {
struct drm_mode_set *mode_set = &helper->crtc_info[i].mode_set;
ret = drm_crtc_helper_set_config(mode_set);
if (ret)
error = true;
}
}
return error;
}
int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
void *panic_str)
{
DRM_ERROR("panic occurred, switching back to text console\n");
return drm_fb_helper_force_kernel_mode();
return 0;
}
EXPORT_SYMBOL(drm_fb_helper_panic);
static struct notifier_block paniced = {
.notifier_call = drm_fb_helper_panic,
};
/**
* drm_fb_helper_restore - restore the framebuffer console (kernel) config
*
* Restore's the kernel's fbcon mode, used for lastclose & panic paths.
*/
void drm_fb_helper_restore(void)
{
bool ret;
ret = drm_fb_helper_force_kernel_mode();
if (ret == true)
DRM_ERROR("Failed to restore crtc configuration\n");
}
EXPORT_SYMBOL(drm_fb_helper_restore);
static void drm_fb_helper_restore_work_fn(struct work_struct *ignored)
{
drm_fb_helper_restore();
}
static DECLARE_WORK(drm_fb_helper_restore_work, drm_fb_helper_restore_work_fn);
static void drm_fb_helper_sysrq(int dummy1, struct tty_struct *dummy3)
{
schedule_work(&drm_fb_helper_restore_work);
}
static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = {
.handler = drm_fb_helper_sysrq,
.help_msg = "force-fb(V)",
.action_msg = "Restore framebuffer console",
};
static void drm_fb_helper_on(struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_device *dev = fb_helper->dev;
struct drm_crtc *crtc;
struct drm_encoder *encoder;
int i;
/*
* For each CRTC in this fb, turn the crtc on then,
* find all associated encoders and turn them on.
*/
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 < fb_helper->crtc_count; i++) {
if (crtc->base.id == fb_helper->crtc_info[i].crtc_id)
break;
}
mutex_lock(&dev->mode_config.mutex);
crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
mutex_unlock(&dev->mode_config.mutex);
/* 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;
mutex_lock(&dev->mode_config.mutex);
encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
mutex_unlock(&dev->mode_config.mutex);
}
}
}
}
static void drm_fb_helper_off(struct fb_info *info, int dpms_mode)
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_device *dev = fb_helper->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 < fb_helper->crtc_count; i++) {
if (crtc->base.id == fb_helper->crtc_info[i].crtc_id)
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;
mutex_lock(&dev->mode_config.mutex);
encoder_funcs->dpms(encoder, dpms_mode);
mutex_unlock(&dev->mode_config.mutex);
}
}
if (dpms_mode == DRM_MODE_DPMS_OFF) {
mutex_lock(&dev->mode_config.mutex);
crtc_funcs->dpms(crtc, dpms_mode);
mutex_unlock(&dev->mode_config.mutex);
}
}
}
int drm_fb_helper_blank(int blank, struct fb_info *info)
{
switch (blank) {
case FB_BLANK_UNBLANK:
drm_fb_helper_on(info);
break;
case FB_BLANK_NORMAL:
drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY);
break;
case FB_BLANK_HSYNC_SUSPEND:
drm_fb_helper_off(info, DRM_MODE_DPMS_STANDBY);
break;
case FB_BLANK_VSYNC_SUSPEND:
drm_fb_helper_off(info, DRM_MODE_DPMS_SUSPEND);
break;
case FB_BLANK_POWERDOWN:
drm_fb_helper_off(info, DRM_MODE_DPMS_OFF);
break;
}
return 0;
}
EXPORT_SYMBOL(drm_fb_helper_blank);
static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper)
{
int i;
for (i = 0; i < helper->crtc_count; i++)
kfree(helper->crtc_info[i].mode_set.connectors);
kfree(helper->crtc_info);
}
int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count, int max_conn_count)
{
struct drm_device *dev = helper->dev;
struct drm_crtc *crtc;
int ret = 0;
int i;
helper->crtc_info = kcalloc(crtc_count, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL);
if (!helper->crtc_info)
return -ENOMEM;
helper->crtc_count = crtc_count;
for (i = 0; i < crtc_count; i++) {
helper->crtc_info[i].mode_set.connectors =
kcalloc(max_conn_count,
sizeof(struct drm_connector *),
GFP_KERNEL);
if (!helper->crtc_info[i].mode_set.connectors) {
ret = -ENOMEM;
goto out_free;
}
helper->crtc_info[i].mode_set.num_connectors = 0;
}
i = 0;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
helper->crtc_info[i].crtc_id = crtc->base.id;
helper->crtc_info[i].mode_set.crtc = crtc;
i++;
}
helper->conn_limit = max_conn_count;
return 0;
out_free:
drm_fb_helper_crtc_free(helper);
return -ENOMEM;
}
EXPORT_SYMBOL(drm_fb_helper_init_crtc_count);
int drm_fb_helper_setcolreg(unsigned regno,
unsigned red,
unsigned green,
unsigned blue,
unsigned transp,
struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_device *dev = fb_helper->dev;
struct drm_crtc *crtc;
int i;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct drm_framebuffer *fb = fb_helper->fb;
for (i = 0; i < fb_helper->crtc_count; i++) {
if (crtc->base.id == fb_helper->crtc_info[i].crtc_id)
break;
}
if (i == fb_helper->crtc_count)
continue;
if (regno > 255)
return 1;
if (fb->depth == 8) {
fb_helper->funcs->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 >> 8) & 0xff) << info->var.red.offset) |
(((green >> 8) & 0xff) << info->var.green.offset) |
(((blue >> 8) & 0xff) << info->var.blue.offset);
break;
}
}
}
return 0;
}
EXPORT_SYMBOL(drm_fb_helper_setcolreg);
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_framebuffer *fb = fb_helper->fb;
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;
}
EXPORT_SYMBOL(drm_fb_helper_check_var);
/* this will let fbcon do the mode init */
int drm_fb_helper_set_par(struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_device *dev = fb_helper->dev;
struct fb_var_screeninfo *var = &info->var;
struct drm_crtc *crtc;
int ret;
int i;
if (var->pixclock != -1) {
DRM_ERROR("PIXEL CLCOK SET\n");
return -EINVAL;
}
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
for (i = 0; i < fb_helper->crtc_count; i++) {
if (crtc->base.id == fb_helper->crtc_info[i].crtc_id)
break;
}
if (i == fb_helper->crtc_count)
continue;
if (crtc->fb == fb_helper->crtc_info[i].mode_set.fb) {
mutex_lock(&dev->mode_config.mutex);
ret = crtc->funcs->set_config(&fb_helper->crtc_info->mode_set);
mutex_unlock(&dev->mode_config.mutex);
if (ret)
return ret;
}
}
return 0;
}
EXPORT_SYMBOL(drm_fb_helper_set_par);
int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct drm_fb_helper *fb_helper = info->par;
struct drm_device *dev = fb_helper->dev;
struct drm_mode_set *modeset;
struct drm_crtc *crtc;
int ret = 0;
int i;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
for (i = 0; i < fb_helper->crtc_count; i++) {
if (crtc->base.id == fb_helper->crtc_info[i].crtc_id)
break;
}
if (i == fb_helper->crtc_count)
continue;
modeset = &fb_helper->crtc_info[i].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;
}
EXPORT_SYMBOL(drm_fb_helper_pan_display);
int drm_fb_helper_single_fb_probe(struct drm_device *dev,
int (*fb_create)(struct drm_device *dev,
uint32_t fb_width,
uint32_t fb_height,
uint32_t surface_width,
uint32_t surface_height,
struct drm_framebuffer **fb_ptr))
{
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 fb_info *info;
struct drm_framebuffer *fb;
struct drm_mode_set *modeset = NULL;
struct drm_fb_helper *fb_helper;
/* first up 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)) {
if (crtc->desired_mode) {
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;
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;
}
crtc_count++;
}
}
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. */
return 0;
}
/* do we have an fb already? */
if (list_empty(&dev->mode_config.fb_kernel_list)) {
ret = (*fb_create)(dev, fb_width, fb_height, surface_width,
surface_height, &fb);
if (ret)
return -EINVAL;
new_fb = 1;
} else {
fb = list_first_entry(&dev->mode_config.fb_kernel_list,
struct drm_framebuffer, filp_head);
/* 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("Framebuffer not large enough to scale console onto.\n");
return -EINVAL;
}
}
info = fb->fbdev;
fb_helper = info->par;
crtc_count = 0;
/* okay we need to setup new connector sets in the crtcs */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
modeset = &fb_helper->crtc_info[crtc_count].mode_set;
modeset->fb = fb;
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 > fb_helper->conn_limit)
BUG();
}
}
for (i = conn_count; i < fb_helper->conn_limit; i++)
modeset->connectors[i] = NULL;
modeset->crtc = crtc;
crtc_count++;
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);
}
}
fb_helper->crtc_count = crtc_count;
fb_helper->fb = fb;
if (new_fb) {
info->var.pixclock = -1;
if (register_framebuffer(info) < 0)
return -EINVAL;
} else {
drm_fb_helper_set_par(info);
}
printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
info->fix.id);
/* Switch back to kernel console on panic */
/* multi card linked list maybe */
if (list_empty(&kernel_fb_helper_list)) {
printk(KERN_INFO "registered panic notifier\n");
atomic_notifier_chain_register(&panic_notifier_list,
&paniced);
register_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
}
list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list);
return 0;
}
EXPORT_SYMBOL(drm_fb_helper_single_fb_probe);
void drm_fb_helper_free(struct drm_fb_helper *helper)
{
list_del(&helper->kernel_fb_list);
if (list_empty(&kernel_fb_helper_list)) {
printk(KERN_INFO "unregistered panic notifier\n");
atomic_notifier_chain_unregister(&panic_notifier_list,
&paniced);
unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op);
}
drm_fb_helper_crtc_free(helper);
}
EXPORT_SYMBOL(drm_fb_helper_free);
void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch)
{
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->fix.line_length = pitch;
return;
}
EXPORT_SYMBOL(drm_fb_helper_fill_fix);
void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
uint32_t fb_width, uint32_t fb_height)
{
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;
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;
}
info->var.xres = fb_width;
info->var.yres = fb_height;
}
EXPORT_SYMBOL(drm_fb_helper_fill_var);

3
drivers/gpu/drm/i915/i915_dma.c
View File

@ -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;
}

12
drivers/gpu/drm/i915/intel_display.c
View File

@ -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,

3
drivers/gpu/drm/i915/intel_drv.h
View File

@ -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)

737
drivers/gpu/drm/i915/intel_fb.c
View File

@ -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);

5
drivers/gpu/drm/radeon/radeon_display.c
View File

@ -158,9 +158,6 @@ static void radeon_crtc_destroy(struct drm_crtc *crtc)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
if (radeon_crtc->mode_set.mode) {
drm_mode_destroy(crtc->dev, radeon_crtc->mode_set.mode);
}
drm_crtc_cleanup(crtc);
kfree(radeon_crtc);
}
@ -189,9 +186,11 @@ static void radeon_crtc_init(struct drm_device *dev, int index)
radeon_crtc->crtc_id = index;
rdev->mode_info.crtcs[index] = radeon_crtc;
#if 0
radeon_crtc->mode_set.crtc = &radeon_crtc->base;
radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
radeon_crtc->mode_set.num_connectors = 0;
#endif
for (i = 0; i < 256; i++) {
radeon_crtc->lut_r[i] = i << 2;

668
drivers/gpu/drm/radeon/radeon_fb.c
View File

@ -28,15 +28,7 @@
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/init.h>
#include "drmP.h"
#include "drm.h"
@ -45,375 +37,86 @@
#include "radeon_drm.h"
#include "radeon.h"
#include "drm_fb_helper.h"
struct radeon_fb_device {
struct radeon_device *rdev;
struct drm_display_mode *mode;
struct drm_fb_helper helper;
struct radeon_framebuffer *rfb;
int crtc_count;
/* crtc currently bound to this */
uint32_t crtc_ids[2];
struct radeon_device *rdev;
};
static int radeonfb_setcolreg(unsigned regno,
unsigned red,
unsigned green,
unsigned blue,
unsigned transp,
struct fb_info *info)
static int radeon_fb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct radeon_fb_device *rfbdev = info->par;
struct drm_device *dev = rfbdev->rdev->ddev;
struct drm_crtc *crtc;
int i;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct drm_mode_set *modeset = &radeon_crtc->mode_set;
struct drm_framebuffer *fb = modeset->fb;
for (i = 0; i < rfbdev->crtc_count; i++) {
if (crtc->base.id == rfbdev->crtc_ids[i]) {
break;
}
}
if (i == rfbdev->crtc_count) {
continue;
}
if (regno > 255) {
return 1;
}
if (fb->depth == 8) {
radeon_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 >> 8) & 0xff) << info->var.red.offset) |
(((green >> 8) & 0xff) << info->var.green.offset) |
(((blue >> 8) & 0xff) << info->var.blue.offset);
break;
}
}
}
return 0;
}
static int radeonfb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct radeon_fb_device *rfbdev = info->par;
struct radeon_framebuffer *rfb = rfbdev->rfb;
struct drm_framebuffer *fb = &rfb->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;
#ifdef __LITTLE_ENDIAN
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;
#else
case 24:
var->red.offset = 8;
var->green.offset = 16;
var->blue.offset = 24;
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 = 8;
var->green.offset = 16;
var->blue.offset = 24;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
var->transp.length = 8;
var->transp.offset = 0;
break;
#endif
default:
return -EINVAL;
}
return 0;
}
/* this will let fbcon do the mode init */
static int radeonfb_set_par(struct fb_info *info)
{
struct radeon_fb_device *rfbdev = info->par;
struct drm_device *dev = rfbdev->rdev->ddev;
struct fb_var_screeninfo *var = &info->var;
struct drm_crtc *crtc;
int ret;
int i;
ret = drm_fb_helper_check_var(var, info);
if (ret)
return ret;
if (var->pixclock != -1) {
DRM_ERROR("PIXEL CLCOK SET\n");
return -EINVAL;
}
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
for (i = 0; i < rfbdev->crtc_count; i++) {
if (crtc->base.id == rfbdev->crtc_ids[i]) {
break;
}
/* big endian override for radeon endian workaround */
#ifdef __BIG_ENDIAN
{
int depth;
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;
}
if (i == rfbdev->crtc_count) {
continue;
}
if (crtc->fb == radeon_crtc->mode_set.fb) {
mutex_lock(&dev->mode_config.mutex);
ret = crtc->funcs->set_config(&radeon_crtc->mode_set);
mutex_unlock(&dev->mode_config.mutex);
if (ret) {
return ret;
}
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 24:
var->red.offset = 8;
var->green.offset = 16;
var->blue.offset = 24;
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 = 8;
var->green.offset = 16;
var->blue.offset = 24;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
var->transp.length = 8;
var->transp.offset = 0;
break;
default:
return -EINVAL;
}
}
return 0;
}
static int radeonfb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct radeon_fb_device *rfbdev = info->par;
struct drm_device *dev = rfbdev->rdev->ddev;
struct drm_mode_set *modeset;
struct drm_crtc *crtc;
struct radeon_crtc *radeon_crtc;
int ret = 0;
int i;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
for (i = 0; i < rfbdev->crtc_count; i++) {
if (crtc->base.id == rfbdev->crtc_ids[i]) {
break;
}
}
if (i == rfbdev->crtc_count) {
continue;
}
radeon_crtc = to_radeon_crtc(crtc);
modeset = &radeon_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 radeonfb_on(struct fb_info *info)
{
struct radeon_fb_device *rfbdev = info->par;
struct drm_device *dev = rfbdev->rdev->ddev;
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 < rfbdev->crtc_count; i++) {
if (crtc->base.id == rfbdev->crtc_ids[i]) {
break;
}
}
mutex_lock(&dev->mode_config.mutex);
crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
mutex_unlock(&dev->mode_config.mutex);
/* 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;
mutex_lock(&dev->mode_config.mutex);
encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
mutex_unlock(&dev->mode_config.mutex);
}
}
}
}
static void radeonfb_off(struct fb_info *info, int dpms_mode)
{
struct radeon_fb_device *rfbdev = info->par;
struct drm_device *dev = rfbdev->rdev->ddev;
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 < rfbdev->crtc_count; i++) {
if (crtc->base.id == rfbdev->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;
mutex_lock(&dev->mode_config.mutex);
encoder_funcs->dpms(encoder, dpms_mode);
mutex_unlock(&dev->mode_config.mutex);
}
}
if (dpms_mode == DRM_MODE_DPMS_OFF) {
mutex_lock(&dev->mode_config.mutex);
crtc_funcs->dpms(crtc, dpms_mode);
mutex_unlock(&dev->mode_config.mutex);
}
}
}
int radeonfb_blank(int blank, struct fb_info *info)
{
switch (blank) {
case FB_BLANK_UNBLANK:
radeonfb_on(info);
break;
case FB_BLANK_NORMAL:
radeonfb_off(info, DRM_MODE_DPMS_STANDBY);
break;
case FB_BLANK_HSYNC_SUSPEND:
radeonfb_off(info, DRM_MODE_DPMS_STANDBY);
break;
case FB_BLANK_VSYNC_SUSPEND:
radeonfb_off(info, DRM_MODE_DPMS_SUSPEND);
break;
case FB_BLANK_POWERDOWN:
radeonfb_off(info, DRM_MODE_DPMS_OFF);
break;
}
#endif
return 0;
}
static struct fb_ops radeonfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = radeonfb_check_var,
.fb_set_par = radeonfb_set_par,
.fb_setcolreg = radeonfb_setcolreg,
.fb_check_var = radeon_fb_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 = radeonfb_pan_display,
.fb_blank = radeonfb_blank,
.fb_pan_display = drm_fb_helper_pan_display,
.fb_blank = drm_fb_helper_blank,
};
/**
@ -456,21 +159,6 @@ int radeonfb_resize(struct drm_device *dev, struct drm_crtc *crtc)
}
EXPORT_SYMBOL(radeonfb_resize);
static struct drm_mode_set panic_mode;
int radeonfb_panic(struct notifier_block *n, unsigned long ununsed,
void *panic_str)
{
DRM_ERROR("panic occurred, switching back to text console\n");
drm_crtc_helper_set_config(&panic_mode);
return 0;
}
EXPORT_SYMBOL(radeonfb_panic);
static struct notifier_block paniced = {
.notifier_call = radeonfb_panic,
};
static int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled)
{
int aligned = width;
@ -495,11 +183,16 @@ static int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bo
return aligned;
}
int radeonfb_create(struct radeon_device *rdev,
static struct drm_fb_helper_funcs radeon_fb_helper_funcs = {
.gamma_set = radeon_crtc_fb_gamma_set,
};
int radeonfb_create(struct drm_device *dev,
uint32_t fb_width, uint32_t fb_height,
uint32_t surface_width, uint32_t surface_height,
struct radeon_framebuffer **rfb_p)
struct drm_framebuffer **fb_p)
{
struct radeon_device *rdev = dev->dev_private;
struct fb_info *info;
struct radeon_fb_device *rfbdev;
struct drm_framebuffer *fb = NULL;
@ -554,8 +247,8 @@ int radeonfb_create(struct radeon_device *rdev,
list_add(&fb->filp_head, &rdev->ddev->mode_config.fb_kernel_list);
*fb_p = fb;
rfb = to_radeon_framebuffer(fb);
*rfb_p = rfb;
rdev->fbdev_rfb = rfb;
rdev->fbdev_robj = robj;
@ -564,7 +257,14 @@ int radeonfb_create(struct radeon_device *rdev,
ret = -ENOMEM;
goto out_unref;
}
rfbdev = info->par;
rfbdev->helper.funcs = &radeon_fb_helper_funcs;
rfbdev->helper.dev = dev;
ret = drm_fb_helper_init_crtc_count(&rfbdev->helper, 2,
RADEONFB_CONN_LIMIT);
if (ret)
goto out_unref;
if (fb_tiled)
radeon_object_check_tiling(robj, 0, 0);
@ -577,33 +277,19 @@ int radeonfb_create(struct radeon_device *rdev,
memset_io(fbptr, 0, aligned_size);
strcpy(info->fix.id, "radeondrmfb");
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_NONE;
info->fix.type_aux = 0;
drm_fb_helper_fill_fix(info, fb->pitch);
info->flags = FBINFO_DEFAULT;
info->fbops = &radeonfb_ops;
info->fix.line_length = fb->pitch;
tmp = fb_gpuaddr - rdev->mc.vram_location;
info->fix.smem_start = rdev->mc.aper_base + tmp;
info->fix.smem_len = size;
info->screen_base = fbptr;
info->screen_size = 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_var(info, fb, fb_width, fb_height);
/* setup aperture base/size for vesafb takeover */
info->aperture_base = rdev->ddev->mode_config.fb_base;
@ -626,6 +312,9 @@ int radeonfb_create(struct radeon_device *rdev,
DRM_INFO("fb depth is %d\n", fb->depth);
DRM_INFO(" pitch is %d\n", fb->pitch);
#ifdef __BIG_ENDIAN
/* fill var sets defaults for this stuff - override
on big endian */
switch (fb->depth) {
case 8:
info->var.red.offset = 0;
@ -637,47 +326,6 @@ int radeonfb_create(struct radeon_device *rdev,
info->var.transp.offset = 0;
info->var.transp.length = 0;
break;
#ifdef __LITTLE_ENDIAN
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;
#else
case 24:
info->var.red.offset = 8;
info->var.green.offset = 16;
@ -699,9 +347,9 @@ int radeonfb_create(struct radeon_device *rdev,
info->var.transp.length = 8;
break;
default:
#endif
break;
}
#endif
fb->fbdev = info;
rfbdev->rfb = rfb;
@ -726,145 +374,10 @@ out:
return ret;
}
static int radeonfb_single_fb_probe(struct radeon_device *rdev)
{
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 radeon_framebuffer *rfb;
struct fb_info *info;
struct radeon_fb_device *rfbdev;
struct drm_mode_set *modeset = NULL;
/* first up get a count of crtcs now in use and new min/maxes width/heights */
list_for_each_entry(crtc, &rdev->ddev->mode_config.crtc_list, head) {
if (drm_helper_crtc_in_use(crtc)) {
if (crtc->desired_mode) {
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;
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;
}
crtc_count++;
}
}
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. */
return 0;
}
/* do we have an fb already? */
if (list_empty(&rdev->ddev->mode_config.fb_kernel_list)) {
/* create an fb if we don't have one */
ret = radeonfb_create(rdev, fb_width, fb_height, surface_width, surface_height, &rfb);
if (ret) {
return -EINVAL;
}
new_fb = 1;
} else {
struct drm_framebuffer *fb;
fb = list_first_entry(&rdev->ddev->mode_config.fb_kernel_list, struct drm_framebuffer, filp_head);
rfb = to_radeon_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("Framebuffer not large enough to scale console onto.\n");
return -EINVAL;
}
}
info = rfb->base.fbdev;
rdev->fbdev_info = info;
rfbdev = info->par;
crtc_count = 0;
/* okay we need to setup new connector sets in the crtcs */
list_for_each_entry(crtc, &rdev->ddev->mode_config.crtc_list, head) {
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
modeset = &radeon_crtc->mode_set;
modeset->fb = &rfb->base;
conn_count = 0;
list_for_each_entry(connector, &rdev->ddev->mode_config.connector_list, head) {
if (connector->encoder)
if (connector->encoder->crtc == modeset->crtc) {
modeset->connectors[conn_count] = connector;
conn_count++;
if (conn_count > RADEONFB_CONN_LIMIT)
BUG();
}
}
for (i = conn_count; i < RADEONFB_CONN_LIMIT; i++)
modeset->connectors[i] = NULL;
rfbdev->crtc_ids[crtc_count++] = crtc->base.id;
modeset->num_connectors = conn_count;
if (modeset->crtc->desired_mode) {
if (modeset->mode) {
drm_mode_destroy(rdev->ddev, modeset->mode);
}
modeset->mode = drm_mode_duplicate(rdev->ddev,
modeset->crtc->desired_mode);
}
}
rfbdev->crtc_count = crtc_count;
if (new_fb) {
info->var.pixclock = -1;
if (register_framebuffer(info) < 0)
return -EINVAL;
} else {
radeonfb_set_par(info);
}
printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
info->fix.id);
/* Switch back to kernel console on panic */
panic_mode = *modeset;
atomic_notifier_chain_register(&panic_notifier_list, &paniced);
printk(KERN_INFO "registered panic notifier\n");
return 0;
}
int radeonfb_probe(struct drm_device *dev)
{
int ret;
/* 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.
*/
ret = radeonfb_single_fb_probe(dev->dev_private);
ret = drm_fb_helper_single_fb_probe(dev, &radeonfb_create);
return ret;
}
EXPORT_SYMBOL(radeonfb_probe);
@ -880,16 +393,17 @@ int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb)
}
info = fb->fbdev;
if (info) {
struct radeon_fb_device *rfbdev = info->par;
robj = rfb->obj->driver_private;
unregister_framebuffer(info);
radeon_object_kunmap(robj);
radeon_object_unpin(robj);
drm_fb_helper_free(&rfbdev->helper);
framebuffer_release(info);
}
printk(KERN_INFO "unregistered panic notifier\n");
atomic_notifier_chain_unregister(&panic_notifier_list, &paniced);
memset(&panic_mode, 0, sizeof(struct drm_mode_set));
return 0;
}
EXPORT_SYMBOL(radeonfb_remove);

2
drivers/gpu/drm/radeon/radeon_mode.h
View File

@ -195,8 +195,6 @@ struct radeon_crtc {
bool enabled;
bool can_tile;
uint32_t crtc_offset;
struct radeon_framebuffer *fbdev_fb;
struct drm_mode_set mode_set;
struct drm_gem_object *cursor_bo;
uint64_t cursor_addr;
int cursor_width;

2
include/drm/drm_crtc.h
View File

@ -259,6 +259,8 @@ struct drm_framebuffer {
void *fbdev;
u32 pseudo_palette[17];
struct list_head filp_head;
/* if you are using the helper */
void *helper_private;
};
struct drm_property_blob {

82
include/drm/drm_fb_helper.h Normal file
View File

@ -0,0 +1,82 @@
/*
* Copyright (c) 2006-2009 Red Hat Inc.
* Copyright (c) 2006-2008 Intel Corporation
* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
*
* DRM framebuffer helper functions
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*
* Authors:
* Dave Airlie <airlied@linux.ie>
* Jesse Barnes <jesse.barnes@intel.com>
*/
#ifndef DRM_FB_HELPER_H
#define DRM_FB_HELPER_H
struct drm_fb_helper_crtc {
uint32_t crtc_id;
struct drm_mode_set mode_set;
};
struct drm_fb_helper_funcs {
void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, int regno);
};
struct drm_fb_helper {
struct drm_framebuffer *fb;
struct drm_device *dev;
struct drm_display_mode *mode;
int crtc_count;
struct drm_fb_helper_crtc *crtc_info;
struct drm_fb_helper_funcs *funcs;
int conn_limit;
struct list_head kernel_fb_list;
};
int drm_fb_helper_single_fb_probe(struct drm_device *dev,
int (*fb_create)(struct drm_device *dev,
uint32_t fb_width,
uint32_t fb_height,
uint32_t surface_width,
uint32_t surface_height,
struct drm_framebuffer **fb_ptr));
int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count,
int max_conn);
void drm_fb_helper_free(struct drm_fb_helper *helper);
int drm_fb_helper_blank(int blank, struct fb_info *info);
int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info);
int drm_fb_helper_set_par(struct fb_info *info);
int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
struct fb_info *info);
int drm_fb_helper_setcolreg(unsigned regno,
unsigned red,
unsigned green,
unsigned blue,
unsigned transp,
struct fb_info *info);
void drm_fb_helper_restore(void);
void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
uint32_t fb_width, uint32_t fb_height);
void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch);
#endif