Release 4.17 drivers/gpu/drm/nouveau/nouveau_vga.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/vgaarb.h>
#include <linux/vga_switcheroo.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include "nouveau_drv.h"
#include "nouveau_acpi.h"
#include "nouveau_fbcon.h"
#include "nouveau_vga.h"
static unsigned int
nouveau_vga_set_decode(void *priv, bool state)
{
struct nouveau_drm *drm = nouveau_drm(priv);
struct nvif_object *device = &drm->client.device.object;
if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE &&
drm->client.device.info.chipset >= 0x4c)
nvif_wr32(device, 0x088060, state);
else
if (drm->client.device.info.chipset >= 0x40)
nvif_wr32(device, 0x088054, state);
else
nvif_wr32(device, 0x001854, state);
if (state)
return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
else
return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 107 | 84.92% | 5 | 83.33% |
| Ilia Mirkin | 19 | 15.08% | 1 | 16.67% |
| Total | 126 | 100.00% | 6 | 100.00% |
static void
nouveau_switcheroo_set_state(struct pci_dev *pdev,
enum vga_switcheroo_state state)
{
struct drm_device *dev = pci_get_drvdata(pdev);
if ((nouveau_is_optimus() || nouveau_is_v1_dsm()) && state == VGA_SWITCHEROO_OFF)
return;
if (state == VGA_SWITCHEROO_ON) {
pr_err("VGA switcheroo: switched nouveau on\n");
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
nouveau_pmops_resume(&pdev->dev);
drm_kms_helper_poll_enable(dev);
dev->switch_power_state = DRM_SWITCH_POWER_ON;
} else {
pr_err("VGA switcheroo: switched nouveau off\n");
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
drm_kms_helper_poll_disable(dev);
nouveau_switcheroo_optimus_dsm();
nouveau_pmops_suspend(&pdev->dev);
dev->switch_power_state = DRM_SWITCH_POWER_OFF;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 89 | 78.07% | 1 | 25.00% |
| Dave Airlie | 23 | 20.18% | 2 | 50.00% |
| Joe Perches | 2 | 1.75% | 1 | 25.00% |
| Total | 114 | 100.00% | 4 | 100.00% |
static void
nouveau_switcheroo_reprobe(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
drm_fb_helper_output_poll_changed(dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 25 | 96.15% | 1 | 50.00% |
| Noralf Trönnes | 1 | 3.85% | 1 | 50.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
static bool
nouveau_switcheroo_can_switch(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
/*
* FIXME: open_count is protected by drm_global_mutex but that would lead to
* locking inversion with the driver load path. And the access here is
* completely racy anyway. So don't bother with locking for now.
*/
return dev->open_count == 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 27 | 93.10% | 1 | 50.00% |
| Daniel Vetter | 2 | 6.90% | 1 | 50.00% |
| Total | 29 | 100.00% | 2 | 100.00% |
static const struct vga_switcheroo_client_ops
nouveau_switcheroo_ops = {
.set_gpu_state = nouveau_switcheroo_set_state,
.reprobe = nouveau_switcheroo_reprobe,
.can_switch = nouveau_switcheroo_can_switch,
};
void
nouveau_vga_init(struct nouveau_drm *drm)
{
struct drm_device *dev = drm->dev;
bool runtime = nouveau_pmops_runtime();
/* only relevant for PCI devices */
if (!dev->pdev)
return;
vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode);
/* don't register Thunderbolt eGPU with vga_switcheroo */
if (pci_is_thunderbolt_attached(dev->pdev))
return;
vga_switcheroo_register_client(dev->pdev, &nouveau_switcheroo_ops, runtime);
if (runtime && nouveau_is_v1_dsm() && !nouveau_is_optimus())
vga_switcheroo_init_domain_pm_ops(drm->dev->dev, &drm->vga_pm_domain);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 44 | 46.32% | 2 | 33.33% |
| Dave Airlie | 31 | 32.63% | 2 | 33.33% |
| Lukas Wunner | 11 | 11.58% | 1 | 16.67% |
| Alexandre Courbot | 9 | 9.47% | 1 | 16.67% |
| Total | 95 | 100.00% | 6 | 100.00% |
void
nouveau_vga_fini(struct nouveau_drm *drm)
{
struct drm_device *dev = drm->dev;
bool runtime = nouveau_pmops_runtime();
/* only relevant for PCI devices */
if (!dev->pdev)
return;
vga_client_register(dev->pdev, NULL, NULL, NULL);
if (pci_is_thunderbolt_attached(dev->pdev))
return;
vga_switcheroo_unregister_client(dev->pdev);
if (runtime && nouveau_is_v1_dsm() && !nouveau_is_optimus())
vga_switcheroo_fini_domain_pm_ops(drm->dev->dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 28 | 33.33% | 2 | 40.00% |
| Alex Deucher | 24 | 28.57% | 1 | 20.00% |
| Lukas Wunner | 23 | 27.38% | 1 | 20.00% |
| Mikko Perttunen | 9 | 10.71% | 1 | 20.00% |
| Total | 84 | 100.00% | 5 | 100.00% |
void
nouveau_vga_lastclose(struct drm_device *dev)
{
vga_switcheroo_process_delayed_switch();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 13 | 100.00% | 1 | 100.00% |
| Total | 13 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ben Skeggs | 375 | 69.70% | 7 | 33.33% |
| Dave Airlie | 54 | 10.04% | 3 | 14.29% |
| Lukas Wunner | 34 | 6.32% | 1 | 4.76% |
| Alex Deucher | 24 | 4.46% | 1 | 4.76% |
| Ilia Mirkin | 19 | 3.53% | 1 | 4.76% |
| Alexandre Courbot | 9 | 1.67% | 1 | 4.76% |
| Mikko Perttunen | 9 | 1.67% | 1 | 4.76% |
| Noralf Trönnes | 4 | 0.74% | 1 | 4.76% |
| Marcin Ślusarz | 3 | 0.56% | 1 | 4.76% |
| Joe Perches | 2 | 0.37% | 1 | 4.76% |
| Daniel Vetter | 2 | 0.37% | 1 | 4.76% |
| Linus Torvalds | 2 | 0.37% | 1 | 4.76% |
| Greg Kroah-Hartman | 1 | 0.19% | 1 | 4.76% |
| Total | 538 | 100.00% | 21 | 100.00% |
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