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kernel/drm-qxl-post-3.10-features-part-2.patch
Dave Airlie 4e4abd7078 qxl: add suspend/resume and hibernate support
2013-07-04 21:06:43 -04:00

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From db21a217f7de4f173aa0fb4c7a296cc9cffbd6bf Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Thu, 4 Jul 2013 14:46:46 +1000
Subject: [PATCH] drm/qxl: post 3.10 features part 2
qxl: split monitors_config object creation out.
qxl: prepare memslot code for suspend/resume
qxl: add ring prep code for s/r
qxl: add fb and ttm entry points for use by suspend/resume.
qxl: add suspend/resume/hibernate support.
qxl: use drm helper hotplug support
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
drivers/gpu/drm/qxl/qxl_cmd.c | 9 ++-
drivers/gpu/drm/qxl/qxl_display.c | 58 +++++++++++++++--
drivers/gpu/drm/qxl/qxl_drv.c | 134 +++++++++++++++++++++++++++++++++++---
drivers/gpu/drm/qxl/qxl_drv.h | 10 +++
drivers/gpu/drm/qxl/qxl_fb.c | 10 +++
drivers/gpu/drm/qxl/qxl_kms.c | 24 +++++--
drivers/gpu/drm/qxl/qxl_object.c | 10 +++
7 files changed, 236 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
index 0ec55e7..0ca2999 100644
--- a/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -49,6 +49,11 @@ void qxl_ring_free(struct qxl_ring *ring)
kfree(ring);
}
+void qxl_ring_init_hdr(struct qxl_ring *ring)
+{
+ ring->ring->header.notify_on_prod = ring->n_elements;
+}
+
struct qxl_ring *
qxl_ring_create(struct qxl_ring_header *header,
int element_size,
@@ -69,7 +74,7 @@ qxl_ring_create(struct qxl_ring_header *header,
ring->prod_notify = prod_notify;
ring->push_event = push_event;
if (set_prod_notify)
- header->notify_on_prod = ring->n_elements;
+ qxl_ring_init_hdr(ring);
spin_lock_init(&ring->lock);
return ring;
}
@@ -87,7 +92,7 @@ static int qxl_check_header(struct qxl_ring *ring)
return ret;
}
-static int qxl_check_idle(struct qxl_ring *ring)
+int qxl_check_idle(struct qxl_ring *ring)
{
int ret;
struct qxl_ring_header *header = &(ring->ring->header);
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index a127a97..b03fe6d 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -107,7 +107,7 @@ void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
qxl_io_log(qdev, "failed crc check for client_monitors_config,"
" retrying\n");
}
- drm_sysfs_hotplug_event(qdev->ddev);
+ drm_helper_hpd_irq_event(qdev->ddev);
}
static int qxl_add_monitors_config_modes(struct drm_connector *connector)
@@ -846,6 +846,8 @@ static int qdev_output_init(struct drm_device *dev, int num_output)
drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
DRM_MODE_ENCODER_VIRTUAL);
+ /* we get HPD via client monitors config */
+ connector->polled = DRM_CONNECTOR_POLL_HPD;
encoder->possible_crtcs = 1 << num_output;
drm_mode_connector_attach_encoder(&qxl_output->base,
&qxl_output->enc);
@@ -885,16 +887,14 @@ static const struct drm_mode_config_funcs qxl_mode_funcs = {
.fb_create = qxl_user_framebuffer_create,
};
-int qxl_modeset_init(struct qxl_device *qdev)
+int qxl_create_monitors_object(struct qxl_device *qdev)
{
- int i;
int ret;
struct drm_gem_object *gobj;
int max_allowed = qxl_num_crtc;
int monitors_config_size = sizeof(struct qxl_monitors_config) +
- max_allowed * sizeof(struct qxl_head);
+ max_allowed * sizeof(struct qxl_head);
- drm_mode_config_init(qdev->ddev);
ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
QXL_GEM_DOMAIN_VRAM,
false, false, NULL, &gobj);
@@ -903,13 +903,59 @@ int qxl_modeset_init(struct qxl_device *qdev)
return -ENOMEM;
}
qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
+
+ ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
+ if (ret)
+ return ret;
+
+ ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
+ if (ret) {
+ qxl_bo_unreserve(qdev->monitors_config_bo);
+ return ret;
+ }
+
+ qxl_bo_unreserve(qdev->monitors_config_bo);
+
qxl_bo_kmap(qdev->monitors_config_bo, NULL);
+
qdev->monitors_config = qdev->monitors_config_bo->kptr;
qdev->ram_header->monitors_config =
qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
memset(qdev->monitors_config, 0, monitors_config_size);
qdev->monitors_config->max_allowed = max_allowed;
+ return 0;
+}
+
+int qxl_destroy_monitors_object(struct qxl_device *qdev)
+{
+ int ret;
+
+ qdev->monitors_config = NULL;
+ qdev->ram_header->monitors_config = 0;
+
+ qxl_bo_kunmap(qdev->monitors_config_bo);
+ ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
+ if (ret)
+ return ret;
+
+ qxl_bo_unpin(qdev->monitors_config_bo);
+ qxl_bo_unreserve(qdev->monitors_config_bo);
+
+ qxl_bo_unref(&qdev->monitors_config_bo);
+ return 0;
+}
+
+int qxl_modeset_init(struct qxl_device *qdev)
+{
+ int i;
+ int ret;
+
+ drm_mode_config_init(qdev->ddev);
+
+ ret = qxl_create_monitors_object(qdev);
+ if (ret)
+ return ret;
qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
@@ -937,6 +983,8 @@ int qxl_modeset_init(struct qxl_device *qdev)
void qxl_modeset_fini(struct qxl_device *qdev)
{
qxl_fbdev_fini(qdev);
+
+ qxl_destroy_monitors_object(qdev);
if (qdev->mode_info.mode_config_initialized) {
drm_mode_config_cleanup(qdev->ddev);
qdev->mode_info.mode_config_initialized = false;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 00e57b76..df0b577 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -33,8 +33,9 @@
#include "drmP.h"
#include "drm/drm.h"
-
+#include "drm_crtc_helper.h"
#include "qxl_drv.h"
+#include "qxl_object.h"
extern int qxl_max_ioctls;
static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
@@ -77,13 +78,6 @@ qxl_pci_remove(struct pci_dev *pdev)
drm_put_dev(dev);
}
-static struct pci_driver qxl_pci_driver = {
- .name = DRIVER_NAME,
- .id_table = pciidlist,
- .probe = qxl_pci_probe,
- .remove = qxl_pci_remove,
-};
-
static const struct file_operations qxl_fops = {
.owner = THIS_MODULE,
.open = drm_open,
@@ -94,6 +88,130 @@ static const struct file_operations qxl_fops = {
.mmap = qxl_mmap,
};
+static int qxl_drm_freeze(struct drm_device *dev)
+{
+ struct pci_dev *pdev = dev->pdev;
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_crtc *crtc;
+
+ drm_kms_helper_poll_disable(dev);
+
+ console_lock();
+ qxl_fbdev_set_suspend(qdev, 1);
+ console_unlock();
+
+ /* unpin the front buffers */
+ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ if (crtc->enabled)
+ (*crtc_funcs->disable)(crtc);
+ }
+
+ qxl_destroy_monitors_object(qdev);
+ qxl_surf_evict(qdev);
+ qxl_vram_evict(qdev);
+
+ while (!qxl_check_idle(qdev->command_ring));
+ while (!qxl_check_idle(qdev->release_ring))
+ qxl_queue_garbage_collect(qdev, 1);
+
+ pci_save_state(pdev);
+
+ return 0;
+}
+
+static int qxl_drm_resume(struct drm_device *dev, bool thaw)
+{
+ struct qxl_device *qdev = dev->dev_private;
+
+ qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
+ if (!thaw) {
+ qxl_reinit_memslots(qdev);
+ qxl_ring_init_hdr(qdev->release_ring);
+ }
+
+ qxl_create_monitors_object(qdev);
+ drm_helper_resume_force_mode(dev);
+
+ console_lock();
+ qxl_fbdev_set_suspend(qdev, 0);
+ console_unlock();
+
+ drm_kms_helper_poll_enable(dev);
+ return 0;
+}
+
+static int qxl_pm_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ int error;
+
+ error = qxl_drm_freeze(drm_dev);
+ if (error)
+ return error;
+
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+ return 0;
+}
+
+static int qxl_pm_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ if (pci_enable_device(pdev)) {
+ return -EIO;
+ }
+
+ return qxl_drm_resume(drm_dev, false);
+}
+
+static int qxl_pm_thaw(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+
+ return qxl_drm_resume(drm_dev, true);
+}
+
+static int qxl_pm_freeze(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+
+ return qxl_drm_freeze(drm_dev);
+}
+
+static int qxl_pm_restore(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ struct qxl_device *qdev = drm_dev->dev_private;
+
+ qxl_io_reset(qdev);
+ return qxl_drm_resume(drm_dev, false);
+}
+
+static const struct dev_pm_ops qxl_pm_ops = {
+ .suspend = qxl_pm_suspend,
+ .resume = qxl_pm_resume,
+ .freeze = qxl_pm_freeze,
+ .thaw = qxl_pm_thaw,
+ .poweroff = qxl_pm_freeze,
+ .restore = qxl_pm_restore,
+};
+static struct pci_driver qxl_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = pciidlist,
+ .probe = qxl_pci_probe,
+ .remove = qxl_pci_remove,
+ .driver.pm = &qxl_pm_ops,
+};
+
static struct drm_driver qxl_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET |
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 42ef0e2..aacb791 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -331,6 +331,10 @@ void qxl_modeset_fini(struct qxl_device *qdev);
int qxl_bo_init(struct qxl_device *qdev);
void qxl_bo_fini(struct qxl_device *qdev);
+void qxl_reinit_memslots(struct qxl_device *qdev);
+int qxl_surf_evict(struct qxl_device *qdev);
+int qxl_vram_evict(struct qxl_device *qdev);
+
struct qxl_ring *qxl_ring_create(struct qxl_ring_header *header,
int element_size,
int n_elements,
@@ -338,6 +342,8 @@ struct qxl_ring *qxl_ring_create(struct qxl_ring_header *header,
bool set_prod_notify,
wait_queue_head_t *push_event);
void qxl_ring_free(struct qxl_ring *ring);
+void qxl_ring_init_hdr(struct qxl_ring *ring);
+int qxl_check_idle(struct qxl_ring *ring);
static inline void *
qxl_fb_virtual_address(struct qxl_device *qdev, unsigned long physical)
@@ -365,6 +371,7 @@ void qxl_fbdev_fini(struct qxl_device *qdev);
int qxl_get_handle_for_primary_fb(struct qxl_device *qdev,
struct drm_file *file_priv,
uint32_t *handle);
+void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state);
/* qxl_display.c */
int
@@ -374,6 +381,8 @@ qxl_framebuffer_init(struct drm_device *dev,
struct drm_gem_object *obj);
void qxl_display_read_client_monitors_config(struct qxl_device *qdev);
void qxl_send_monitors_config(struct qxl_device *qdev);
+int qxl_create_monitors_object(struct qxl_device *qdev);
+int qxl_destroy_monitors_object(struct qxl_device *qdev);
/* used by qxl_debugfs only */
void qxl_crtc_set_from_monitors_config(struct qxl_device *qdev);
@@ -528,6 +537,7 @@ irqreturn_t qxl_irq_handler(DRM_IRQ_ARGS);
/* qxl_fb.c */
int qxl_fb_init(struct qxl_device *qdev);
+bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj);
int qxl_debugfs_add_files(struct qxl_device *qdev,
struct drm_info_list *files,
diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c
index 11ef7cb..2c3970a 100644
--- a/drivers/gpu/drm/qxl/qxl_fb.c
+++ b/drivers/gpu/drm/qxl/qxl_fb.c
@@ -564,4 +564,14 @@ void qxl_fbdev_fini(struct qxl_device *qdev)
qdev->mode_info.qfbdev = NULL;
}
+void qxl_fbdev_set_suspend(struct qxl_device *qdev, int state)
+{
+ fb_set_suspend(qdev->mode_info.qfbdev->helper.fbdev, state);
+}
+bool qxl_fbdev_qobj_is_fb(struct qxl_device *qdev, struct qxl_bo *qobj)
+{
+ if (qobj == gem_to_qxl_bo(qdev->mode_info.qfbdev->qfb.obj))
+ return true;
+ return false;
+}
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index e27ce2a..9e8da9e 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -26,6 +26,7 @@
#include "qxl_drv.h"
#include "qxl_object.h"
+#include <drm/drm_crtc_helper.h>
#include <linux/io-mapping.h>
int qxl_log_level;
@@ -72,21 +73,28 @@ static bool qxl_check_device(struct qxl_device *qdev)
return true;
}
+static void setup_hw_slot(struct qxl_device *qdev, int slot_index,
+ struct qxl_memslot *slot)
+{
+ qdev->ram_header->mem_slot.mem_start = slot->start_phys_addr;
+ qdev->ram_header->mem_slot.mem_end = slot->end_phys_addr;
+ qxl_io_memslot_add(qdev, slot_index);
+}
+
static uint8_t setup_slot(struct qxl_device *qdev, uint8_t slot_index_offset,
unsigned long start_phys_addr, unsigned long end_phys_addr)
{
uint64_t high_bits;
struct qxl_memslot *slot;
uint8_t slot_index;
- struct qxl_ram_header *ram_header = qdev->ram_header;
slot_index = qdev->rom->slots_start + slot_index_offset;
slot = &qdev->mem_slots[slot_index];
slot->start_phys_addr = start_phys_addr;
slot->end_phys_addr = end_phys_addr;
- ram_header->mem_slot.mem_start = slot->start_phys_addr;
- ram_header->mem_slot.mem_end = slot->end_phys_addr;
- qxl_io_memslot_add(qdev, slot_index);
+
+ setup_hw_slot(qdev, slot_index, slot);
+
slot->generation = qdev->rom->slot_generation;
high_bits = slot_index << qdev->slot_gen_bits;
high_bits |= slot->generation;
@@ -95,6 +103,12 @@ static uint8_t setup_slot(struct qxl_device *qdev, uint8_t slot_index_offset,
return slot_index;
}
+void qxl_reinit_memslots(struct qxl_device *qdev)
+{
+ setup_hw_slot(qdev, qdev->main_mem_slot, &qdev->mem_slots[qdev->main_mem_slot]);
+ setup_hw_slot(qdev, qdev->surfaces_mem_slot, &qdev->mem_slots[qdev->surfaces_mem_slot]);
+}
+
static void qxl_gc_work(struct work_struct *work)
{
struct qxl_device *qdev = container_of(work, struct qxl_device, gc_work);
@@ -294,6 +308,8 @@ int qxl_driver_load(struct drm_device *dev, unsigned long flags)
goto out;
}
+ drm_kms_helper_poll_init(qdev->ddev);
+
return 0;
out:
kfree(qdev);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index d9b12e7..1191fe7 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -363,3 +363,13 @@ int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo)
return ret;
return 0;
}
+
+int qxl_surf_evict(struct qxl_device *qdev)
+{
+ return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_PRIV0);
+}
+
+int qxl_vram_evict(struct qxl_device *qdev)
+{
+ return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_VRAM);
+}
--
1.8.3.1
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