Release 4.11 drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
/*
* Copyright © 2007 David Airlie
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* David Airlie
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "cikd.h"
#include <drm/drm_fb_helper.h>
#include <linux/vga_switcheroo.h>
/* object hierarchy -
this contains a helper + a amdgpu fb
the helper contains a pointer to amdgpu framebuffer baseclass.
*/
struct amdgpu_fbdev {
struct drm_fb_helper helper;
struct amdgpu_framebuffer rfb;
struct amdgpu_device *adev;
};
static int
amdgpufb_open(struct fb_info *info, int user)
{
struct amdgpu_fbdev *rfbdev = info->par;
struct amdgpu_device *adev = rfbdev->adev;
int ret = pm_runtime_get_sync(adev->ddev->dev);
if (ret < 0 && ret != -EACCES) {
pm_runtime_mark_last_busy(adev->ddev->dev);
pm_runtime_put_autosuspend(adev->ddev->dev);
return ret;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 81 | 100.00% | 1 | 100.00% |
| Total | 81 | 100.00% | 1 | 100.00% |
static int
amdgpufb_release(struct fb_info *info, int user)
{
struct amdgpu_fbdev *rfbdev = info->par;
struct amdgpu_device *adev = rfbdev->adev;
pm_runtime_mark_last_busy(adev->ddev->dev);
pm_runtime_put_autosuspend(adev->ddev->dev);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 53 | 100.00% | 1 | 100.00% |
| Total | 53 | 100.00% | 1 | 100.00% |
static struct fb_ops amdgpufb_ops = {
.owner = THIS_MODULE,
DRM_FB_HELPER_DEFAULT_OPS,
.fb_open = amdgpufb_open,
.fb_release = amdgpufb_release,
.fb_fillrect = drm_fb_helper_cfb_fillrect,
.fb_copyarea = drm_fb_helper_cfb_copyarea,
.fb_imageblit = drm_fb_helper_cfb_imageblit,
};
int amdgpu_align_pitch(struct amdgpu_device *adev, int width, int cpp, bool tiled)
{
int aligned = width;
int pitch_mask = 0;
switch (cpp) {
case 1:
pitch_mask = 255;
break;
case 2:
pitch_mask = 127;
break;
case 3:
case 4:
pitch_mask = 63;
break;
}
aligned += pitch_mask;
aligned &= ~pitch_mask;
return aligned * cpp;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 72 | 94.74% | 1 | 50.00% |
| Laurent Pinchart | 4 | 5.26% | 1 | 50.00% |
| Total | 76 | 100.00% | 2 | 100.00% |
static void amdgpufb_destroy_pinned_object(struct drm_gem_object *gobj)
{
struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj);
int ret;
ret = amdgpu_bo_reserve(abo, false);
if (likely(ret == 0)) {
amdgpu_bo_kunmap(abo);
amdgpu_bo_unpin(abo);
amdgpu_bo_unreserve(abo);
}
drm_gem_object_unreference_unlocked(gobj);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 59 | 92.19% | 1 | 50.00% |
| Christian König | 5 | 7.81% | 1 | 50.00% |
| Total | 64 | 100.00% | 2 | 100.00% |
static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev,
struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object **gobj_p)
{
struct amdgpu_device *adev = rfbdev->adev;
struct drm_gem_object *gobj = NULL;
struct amdgpu_bo *abo = NULL;
bool fb_tiled = false; /* useful for testing */
u32 tiling_flags = 0;
int ret;
int aligned_size, size;
int height = mode_cmd->height;
u32 cpp;
cpp = drm_format_plane_cpp(mode_cmd->pixel_format, 0);
/* need to align pitch with crtc limits */
mode_cmd->pitches[0] = amdgpu_align_pitch(adev, mode_cmd->width, cpp,
fb_tiled);
height = ALIGN(mode_cmd->height, 8);
size = mode_cmd->pitches[0] * height;
aligned_size = ALIGN(size, PAGE_SIZE);
ret = amdgpu_gem_object_create(adev, aligned_size, 0,
AMDGPU_GEM_DOMAIN_VRAM,
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
true, &gobj);
if (ret) {
printk(KERN_ERR "failed to allocate framebuffer (%d)\n",
aligned_size);
return -ENOMEM;
}
abo = gem_to_amdgpu_bo(gobj);
if (fb_tiled)
tiling_flags = AMDGPU_TILING_SET(ARRAY_MODE, GRPH_ARRAY_2D_TILED_THIN1);
ret = amdgpu_bo_reserve(abo, false);
if (unlikely(ret != 0))
goto out_unref;
if (tiling_flags) {
ret = amdgpu_bo_set_tiling_flags(abo,
tiling_flags);
if (ret)
dev_err(adev->dev, "FB failed to set tiling flags\n");
}
ret = amdgpu_bo_pin(abo, AMDGPU_GEM_DOMAIN_VRAM, NULL);
if (ret) {
amdgpu_bo_unreserve(abo);
goto out_unref;
}
ret = amdgpu_bo_kmap(abo, NULL);
amdgpu_bo_unreserve(abo);
if (ret) {
goto out_unref;
}
*gobj_p = gobj;
return 0;
out_unref:
amdgpufb_destroy_pinned_object(gobj);
*gobj_p = NULL;
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 295 | 93.06% | 3 | 42.86% |
| Christian König | 10 | 3.15% | 2 | 28.57% |
| Marek Olšák | 6 | 1.89% | 1 | 14.29% |
| Laurent Pinchart | 6 | 1.89% | 1 | 14.29% |
| Total | 317 | 100.00% | 7 | 100.00% |
static int amdgpufb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
struct amdgpu_fbdev *rfbdev = (struct amdgpu_fbdev *)helper;
struct amdgpu_device *adev = rfbdev->adev;
struct fb_info *info;
struct drm_framebuffer *fb = NULL;
struct drm_mode_fb_cmd2 mode_cmd;
struct drm_gem_object *gobj = NULL;
struct amdgpu_bo *abo = NULL;
int ret;
unsigned long tmp;
mode_cmd.width = sizes->surface_width;
mode_cmd.height = sizes->surface_height;
if (sizes->surface_bpp == 24)
sizes->surface_bpp = 32;
mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
sizes->surface_depth);
ret = amdgpufb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
if (ret) {
DRM_ERROR("failed to create fbcon object %d\n", ret);
return ret;
}
abo = gem_to_amdgpu_bo(gobj);
/* okay we have an object now allocate the framebuffer */
info = drm_fb_helper_alloc_fbi(helper);
if (IS_ERR(info)) {
ret = PTR_ERR(info);
goto out_unref;
}
info->par = rfbdev;
info->skip_vt_switch = true;
ret = amdgpu_framebuffer_init(adev->ddev, &rfbdev->rfb, &mode_cmd, gobj);
if (ret) {
DRM_ERROR("failed to initialize framebuffer %d\n", ret);
goto out_destroy_fbi;
}
fb = &rfbdev->rfb.base;
/* setup helper */
rfbdev->helper.fb = fb;
memset_io(abo->kptr, 0x0, amdgpu_bo_size(abo));
strcpy(info->fix.id, "amdgpudrmfb");
drm_fb_helper_fill_fix(info, fb->pitches[0], fb->format->depth);
info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
info->fbops = &amdgpufb_ops;
tmp = amdgpu_bo_gpu_offset(abo) - adev->mc.vram_start;
info->fix.smem_start = adev->mc.aper_base + tmp;
info->fix.smem_len = amdgpu_bo_size(abo);
info->screen_base = abo->kptr;
info->screen_size = amdgpu_bo_size(abo);
drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height);
/* setup aperture base/size for vesafb takeover */
info->apertures->ranges[0].base = adev->ddev->mode_config.fb_base;
info->apertures->ranges[0].size = adev->mc.aper_size;
/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
if (info->screen_base == NULL) {
ret = -ENOSPC;
goto out_destroy_fbi;
}
DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
DRM_INFO("vram apper at 0x%lX\n", (unsigned long)adev->mc.aper_base);
DRM_INFO("size %lu\n", (unsigned long)amdgpu_bo_size(abo));
DRM_INFO("fb depth is %d\n", fb->format->depth);
DRM_INFO(" pitch is %d\n", fb->pitches[0]);
vga_switcheroo_client_fb_set(adev->ddev->pdev, info);
return 0;
out_destroy_fbi:
drm_fb_helper_release_fbi(helper);
out_unref:
if (abo) {
}
if (fb && ret) {
drm_gem_object_unreference_unlocked(gobj);
drm_framebuffer_unregister_private(fb);
drm_framebuffer_cleanup(fb);
kfree(fb);
}
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 523 | 94.06% | 2 | 33.33% |
| Archit Taneja | 18 | 3.24% | 1 | 16.67% |
| Christian König | 10 | 1.80% | 1 | 16.67% |
| Ville Syrjälä | 4 | 0.72% | 1 | 16.67% |
| Daniel Vetter | 1 | 0.18% | 1 | 16.67% |
| Total | 556 | 100.00% | 6 | 100.00% |
void amdgpu_fb_output_poll_changed(struct amdgpu_device *adev)
{
if (adev->mode_info.rfbdev)
drm_fb_helper_hotplug_event(&adev->mode_info.rfbdev->helper);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
static int amdgpu_fbdev_destroy(struct drm_device *dev, struct amdgpu_fbdev *rfbdev)
{
struct amdgpu_framebuffer *rfb = &rfbdev->rfb;
drm_fb_helper_unregister_fbi(&rfbdev->helper);
drm_fb_helper_release_fbi(&rfbdev->helper);
if (rfb->obj) {
amdgpufb_destroy_pinned_object(rfb->obj);
rfb->obj = NULL;
}
drm_fb_helper_fini(&rfbdev->helper);
drm_framebuffer_unregister_private(&rfb->base);
drm_framebuffer_cleanup(&rfb->base);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 84 | 93.33% | 1 | 50.00% |
| Archit Taneja | 6 | 6.67% | 1 | 50.00% |
| Total | 90 | 100.00% | 2 | 100.00% |
/** Sets the color ramps on behalf of fbcon */
static void amdgpu_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, int regno)
{
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
amdgpu_crtc->lut_r[regno] = red >> 6;
amdgpu_crtc->lut_g[regno] = green >> 6;
amdgpu_crtc->lut_b[regno] = blue >> 6;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 66 | 100.00% | 1 | 100.00% |
| Total | 66 | 100.00% | 1 | 100.00% |
/** Gets the color ramps on behalf of fbcon */
static void amdgpu_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, int regno)
{
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
*red = amdgpu_crtc->lut_r[regno] << 6;
*green = amdgpu_crtc->lut_g[regno] << 6;
*blue = amdgpu_crtc->lut_b[regno] << 6;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 72 | 100.00% | 1 | 100.00% |
| Total | 72 | 100.00% | 1 | 100.00% |
static const struct drm_fb_helper_funcs amdgpu_fb_helper_funcs = {
.gamma_set = amdgpu_crtc_fb_gamma_set,
.gamma_get = amdgpu_crtc_fb_gamma_get,
.fb_probe = amdgpufb_create,
};
int amdgpu_fbdev_init(struct amdgpu_device *adev)
{
struct amdgpu_fbdev *rfbdev;
int bpp_sel = 32;
int ret;
/* don't init fbdev on hw without DCE */
if (!adev->mode_info.mode_config_initialized)
return 0;
/* don't init fbdev if there are no connectors */
if (list_empty(&adev->ddev->mode_config.connector_list))
return 0;
/* select 8 bpp console on low vram cards */
if (adev->mc.real_vram_size <= (32*1024*1024))
bpp_sel = 8;
rfbdev = kzalloc(sizeof(struct amdgpu_fbdev), GFP_KERNEL);
if (!rfbdev)
return -ENOMEM;
rfbdev->adev = adev;
adev->mode_info.rfbdev = rfbdev;
drm_fb_helper_prepare(adev->ddev, &rfbdev->helper,
&amdgpu_fb_helper_funcs);
ret = drm_fb_helper_init(adev->ddev, &rfbdev->helper,
AMDGPUFB_CONN_LIMIT);
if (ret) {
kfree(rfbdev);
return ret;
}
drm_fb_helper_single_add_all_connectors(&rfbdev->helper);
/* disable all the possible outputs/crtcs before entering KMS mode */
drm_helper_disable_unused_functions(adev->ddev);
drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 185 | 100.00% | 2 | 100.00% |
| Total | 185 | 100.00% | 2 | 100.00% |
void amdgpu_fbdev_fini(struct amdgpu_device *adev)
{
if (!adev->mode_info.rfbdev)
return;
amdgpu_fbdev_destroy(adev->ddev, adev->mode_info.rfbdev);
kfree(adev->mode_info.rfbdev);
adev->mode_info.rfbdev = NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 50 | 100.00% | 1 | 100.00% |
| Total | 50 | 100.00% | 1 | 100.00% |
void amdgpu_fbdev_set_suspend(struct amdgpu_device *adev, int state)
{
if (adev->mode_info.rfbdev)
drm_fb_helper_set_suspend(&adev->mode_info.rfbdev->helper,
state);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 33 | 94.29% | 1 | 50.00% |
| Archit Taneja | 2 | 5.71% | 1 | 50.00% |
| Total | 35 | 100.00% | 2 | 100.00% |
int amdgpu_fbdev_total_size(struct amdgpu_device *adev)
{
struct amdgpu_bo *robj;
int size = 0;
if (!adev->mode_info.rfbdev)
return 0;
robj = gem_to_amdgpu_bo(adev->mode_info.rfbdev->rfb.obj);
size += amdgpu_bo_size(robj);
return size;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 57 | 100.00% | 1 | 100.00% |
| Total | 57 | 100.00% | 1 | 100.00% |
bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj)
{
if (!adev->mode_info.rfbdev)
return false;
if (robj == gem_to_amdgpu_bo(adev->mode_info.rfbdev->rfb.obj))
return true;
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 50 | 100.00% | 1 | 100.00% |
| Total | 50 | 100.00% | 1 | 100.00% |
void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev)
{
struct amdgpu_fbdev *afbdev = adev->mode_info.rfbdev;
struct drm_fb_helper *fb_helper;
int ret;
if (!afbdev)
return;
fb_helper = &afbdev->helper;
ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 58 | 100.00% | 1 | 100.00% |
| Total | 58 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Alex Deucher | 1877 | 95.91% | 7 | 46.67% |
| Archit Taneja | 29 | 1.48% | 1 | 6.67% |
| Christian König | 25 | 1.28% | 2 | 13.33% |
| Laurent Pinchart | 10 | 0.51% | 1 | 6.67% |
| Marek Olšák | 9 | 0.46% | 1 | 6.67% |
| Ville Syrjälä | 4 | 0.20% | 1 | 6.67% |
| Stefan Christ | 2 | 0.10% | 1 | 6.67% |
| Daniel Vetter | 1 | 0.05% | 1 | 6.67% |
| Total | 1957 | 100.00% | 15 | 100.00% |
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