Commit 63bf8301 authored by Jani Nikula's avatar Jani Nikula

drm/i915: split out i915_switcheroo.[ch] from i915_drv.c

Split out code related to vga switcheroo register/unregister and state
handling from i915_drv.c into new i915_switcheroo.[ch] files.

It's a bit difficult to draw the line how much to move to the new file
from i915_drv.c, but it seemed to me keeping i915_suspend_switcheroo()
and i915_resume_switcheroo() in place was the cleanest.

No functional changes.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004122019.12009-2-jani.nikula@intel.com
parent 7fd29602
......@@ -46,6 +46,7 @@ i915-y += i915_drv.o \
i915_pci.o \
i915_scatterlist.o \
i915_suspend.o \
i915_switcheroo.o \
i915_sysfs.o \
i915_utils.o \
intel_csr.o \
......
......@@ -72,6 +72,7 @@
#include "i915_perf.h"
#include "i915_query.h"
#include "i915_suspend.h"
#include "i915_switcheroo.h"
#include "i915_sysfs.h"
#include "i915_trace.h"
#include "i915_vgpu.h"
......@@ -269,56 +270,8 @@ intel_teardown_mchbar(struct drm_i915_private *dev_priv)
release_resource(&dev_priv->mch_res);
}
static int i915_resume_switcheroo(struct drm_i915_private *i915);
static int i915_suspend_switcheroo(struct drm_i915_private *i915,
pm_message_t state);
static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
{
struct drm_i915_private *i915 = pdev_to_i915(pdev);
pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
if (!i915) {
dev_err(&pdev->dev, "DRM not initialized, aborting switch.\n");
return;
}
if (state == VGA_SWITCHEROO_ON) {
pr_info("switched on\n");
i915->drm.switch_power_state = DRM_SWITCH_POWER_CHANGING;
/* i915 resume handler doesn't set to D0 */
pci_set_power_state(pdev, PCI_D0);
i915_resume_switcheroo(i915);
i915->drm.switch_power_state = DRM_SWITCH_POWER_ON;
} else {
pr_info("switched off\n");
i915->drm.switch_power_state = DRM_SWITCH_POWER_CHANGING;
i915_suspend_switcheroo(i915, pmm);
i915->drm.switch_power_state = DRM_SWITCH_POWER_OFF;
}
}
static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
{
struct drm_i915_private *i915 = pdev_to_i915(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 i915 && i915->drm.open_count == 0;
}
static const struct vga_switcheroo_client_ops i915_switcheroo_ops = {
.set_gpu_state = i915_switcheroo_set_state,
.reprobe = NULL,
.can_switch = i915_switcheroo_can_switch,
};
static int i915_driver_modeset_probe(struct drm_i915_private *i915)
{
struct pci_dev *pdev = i915->drm.pdev;
int ret;
if (i915_inject_probe_failure(i915))
......@@ -339,7 +292,7 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
intel_register_dsm_handler();
ret = vga_switcheroo_register_client(pdev, &i915_switcheroo_ops, false);
ret = i915_switcheroo_register(i915);
if (ret)
goto cleanup_vga_client;
......@@ -394,7 +347,7 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
cleanup_csr:
intel_csr_ucode_fini(i915);
intel_power_domains_driver_remove(i915);
vga_switcheroo_unregister_client(pdev);
i915_switcheroo_unregister(i915);
cleanup_vga_client:
intel_vga_unregister(i915);
out:
......@@ -428,13 +381,12 @@ static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
static void i915_driver_modeset_remove(struct drm_i915_private *i915)
{
struct pci_dev *pdev = i915->drm.pdev;
intel_modeset_driver_remove(i915);
intel_bios_driver_remove(i915);
vga_switcheroo_unregister_client(pdev);
i915_switcheroo_unregister(i915);
intel_vga_unregister(i915);
intel_csr_ucode_fini(i915);
......@@ -1860,8 +1812,7 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
return ret;
}
static int
i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state)
int i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state)
{
int error;
......@@ -2027,7 +1978,7 @@ static int i915_drm_resume_early(struct drm_device *dev)
return ret;
}
static int i915_resume_switcheroo(struct drm_i915_private *i915)
int i915_resume_switcheroo(struct drm_i915_private *i915)
{
int ret;
......
......@@ -2189,6 +2189,9 @@ extern const struct dev_pm_ops i915_pm_ops;
int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
void i915_driver_remove(struct drm_i915_private *i915);
int i915_resume_switcheroo(struct drm_i915_private *i915);
int i915_suspend_switcheroo(struct drm_i915_private *i915, pm_message_t state);
void intel_engine_init_hangcheck(struct intel_engine_cs *engine);
int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
......
// SPDX-License-Identifier: MIT
/*
* Copyright © 2019 Intel Corporation
*/
#include <linux/vga_switcheroo.h>
#include "i915_drv.h"
#include "i915_switcheroo.h"
static void i915_switcheroo_set_state(struct pci_dev *pdev,
enum vga_switcheroo_state state)
{
struct drm_i915_private *i915 = pdev_to_i915(pdev);
pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
if (!i915) {
dev_err(&pdev->dev, "DRM not initialized, aborting switch.\n");
return;
}
if (state == VGA_SWITCHEROO_ON) {
pr_info("switched on\n");
i915->drm.switch_power_state = DRM_SWITCH_POWER_CHANGING;
/* i915 resume handler doesn't set to D0 */
pci_set_power_state(pdev, PCI_D0);
i915_resume_switcheroo(i915);
i915->drm.switch_power_state = DRM_SWITCH_POWER_ON;
} else {
pr_info("switched off\n");
i915->drm.switch_power_state = DRM_SWITCH_POWER_CHANGING;
i915_suspend_switcheroo(i915, pmm);
i915->drm.switch_power_state = DRM_SWITCH_POWER_OFF;
}
}
static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
{
struct drm_i915_private *i915 = pdev_to_i915(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 i915 && i915->drm.open_count == 0;
}
static const struct vga_switcheroo_client_ops i915_switcheroo_ops = {
.set_gpu_state = i915_switcheroo_set_state,
.reprobe = NULL,
.can_switch = i915_switcheroo_can_switch,
};
int i915_switcheroo_register(struct drm_i915_private *i915)
{
struct pci_dev *pdev = i915->drm.pdev;
return vga_switcheroo_register_client(pdev, &i915_switcheroo_ops, false);
}
void i915_switcheroo_unregister(struct drm_i915_private *i915)
{
struct pci_dev *pdev = i915->drm.pdev;
vga_switcheroo_unregister_client(pdev);
}
/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2019 Intel Corporation
*/
#ifndef __I915_SWITCHEROO__
#define __I915_SWITCHEROO__
struct drm_i915_private;
int i915_switcheroo_register(struct drm_i915_private *i915);
void i915_switcheroo_unregister(struct drm_i915_private *i915);
#endif /* __I915_SWITCHEROO__ */
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