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Regard whitespace Rev 2996 → Rev 2997

/drivers/video/drm/radeon/radeon_irq_kms.c
25,55 → 25,93
* Alex Deucher
* Jerome Glisse
*/
#include "drmP.h"
#include "drm_crtc_helper.h"
#include "radeon_drm.h"
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/radeon_drm.h>
#include "radeon_reg.h"
#include "radeon.h"
#include "atom.h"
 
#define RADEON_WAIT_IDLE_TIMEOUT 200
 
struct radeon_device *main_device;
 
extern int irq_override;
 
 
/**
* radeon_driver_irq_handler_kms - irq handler for KMS
*
* @DRM_IRQ_ARGS: args
*
* This is the irq handler for the radeon KMS driver (all asics).
* radeon_irq_process is a macro that points to the per-asic
* irq handler callback.
*/
void irq_handler_kms()
{
// dbgprintf("%s\n",__FUNCTION__);
radeon_irq_process(main_device);
}
 
 
static void radeon_irq_preinstall(struct radeon_device *rdev)
/**
* radeon_driver_irq_preinstall_kms - drm irq preinstall callback
*
* @dev: drm dev pointer
*
* Gets the hw ready to enable irqs (all asics).
* This function disables all interrupt sources on the GPU.
*/
void radeon_irq_preinstall_kms(struct radeon_device *rdev)
{
unsigned long irqflags;
unsigned i;
 
spin_lock_irqsave(&rdev->irq.lock, irqflags);
/* Disable *all* interrupts */
rdev->irq.sw_int = false;
rdev->irq.gui_idle = false;
for (i = 0; i < rdev->num_crtc; i++)
for (i = 0; i < RADEON_NUM_RINGS; i++)
atomic_set(&rdev->irq.ring_int[i], 0);
for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
rdev->irq.hpd[i] = false;
for (i = 0; i < RADEON_MAX_CRTCS; i++) {
rdev->irq.crtc_vblank_int[i] = false;
for (i = 0; i < 6; i++) {
rdev->irq.hpd[i] = false;
rdev->irq.pflip[i] = false;
atomic_set(&rdev->irq.pflip[i], 0);
rdev->irq.afmt[i] = false;
}
radeon_irq_set(rdev);
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
/* Clear bits */
radeon_irq_process(rdev);
}
 
int radeon_driver_irq_postinstall(struct radeon_device *rdev)
/**
* radeon_driver_irq_postinstall_kms - drm irq preinstall callback
*
* @dev: drm dev pointer
*
* Handles stuff to be done after enabling irqs (all asics).
* Returns 0 on success.
*/
 
int radeon_driver_irq_postinstall_kms(struct radeon_device *rdev)
{
// struct radeon_device *rdev = dev->dev_private;
 
// dev->max_vblank_count = 0x001fffff;
rdev->irq.sw_int = true;
 
radeon_irq_set(rdev);
return 0;
}
 
/**
* radeon_irq_kms_init - init driver interrupt info
*
* @rdev: radeon device pointer
*
* Sets up the work irq handlers, vblank init, MSIs, etc. (all asics).
* Returns 0 for success, error for failure.
*/
int radeon_irq_kms_init(struct radeon_device *rdev)
{
int i;
int irq_line;
int r = 0;
 
80,20 → 118,27
ENTER();
 
// INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
// INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
 
spin_lock_init(&rdev->irq.sw_lock);
for (i = 0; i < rdev->num_crtc; i++)
spin_lock_init(&rdev->irq.pflip_lock[i]);
spin_lock_init(&rdev->irq.lock);
// r = drm_vblank_init(rdev->ddev, rdev->num_crtc);
// if (r) {
// return r;
// }
/* enable msi */
rdev->msi_enabled = 0;
 
rdev->msi_enabled = 0;
// if (radeon_msi_ok(rdev)) {
// int ret = pci_enable_msi(rdev->pdev);
// if (!ret) {
// rdev->msi_enabled = 1;
// dev_info(rdev->dev, "radeon: using MSI.\n");
// }
// }
rdev->irq.installed = true;
main_device = rdev;
 
radeon_irq_preinstall(rdev);
radeon_irq_preinstall_kms(rdev);
 
if (irq_override)
irq_line = irq_override;
106,41 → 151,81
 
// r = drm_irq_install(rdev->ddev);
 
r = radeon_driver_irq_postinstall(rdev);
r = radeon_driver_irq_postinstall_kms(rdev);
if (r) {
rdev->irq.installed = false;
LEAVE();
return r;
}
 
DRM_INFO("radeon: irq initialized.\n");
return 0;
}
 
/**
* radeon_irq_kms_fini - tear down driver interrrupt info
*
* @rdev: radeon device pointer
*
* Tears down the work irq handlers, vblank handlers, MSIs, etc. (all asics).
*/
void radeon_irq_kms_fini(struct radeon_device *rdev)
{
// drm_vblank_cleanup(rdev->ddev);
if (rdev->irq.installed) {
// drm_irq_uninstall(rdev->ddev);
rdev->irq.installed = false;
// if (rdev->msi_enabled)
// pci_disable_msi(rdev->pdev);
}
// flush_work(&rdev->hotplug_work);
}
 
void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev)
/**
* radeon_irq_kms_sw_irq_get - enable software interrupt
*
* @rdev: radeon device pointer
* @ring: ring whose interrupt you want to enable
*
* Enables the software interrupt for a specific ring (all asics).
* The software interrupt is generally used to signal a fence on
* a particular ring.
*/
void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring)
{
unsigned long irqflags;
 
spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
if (rdev->ddev->irq_enabled && (++rdev->irq.sw_refcount == 1)) {
rdev->irq.sw_int = true;
if (!rdev->ddev->irq_enabled)
return;
 
if (atomic_inc_return(&rdev->irq.ring_int[ring]) == 1) {
spin_lock_irqsave(&rdev->irq.lock, irqflags);
radeon_irq_set(rdev);
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
}
spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
}
 
void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev)
/**
* radeon_irq_kms_sw_irq_put - disable software interrupt
*
* @rdev: radeon device pointer
* @ring: ring whose interrupt you want to disable
*
* Disables the software interrupt for a specific ring (all asics).
* The software interrupt is generally used to signal a fence on
* a particular ring.
*/
void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring)
{
unsigned long irqflags;
 
spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
BUG_ON(rdev->ddev->irq_enabled && rdev->irq.sw_refcount <= 0);
if (rdev->ddev->irq_enabled && (--rdev->irq.sw_refcount == 0)) {
rdev->irq.sw_int = false;
if (!rdev->ddev->irq_enabled)
return;
 
if (atomic_dec_and_test(&rdev->irq.ring_int[ring])) {
spin_lock_irqsave(&rdev->irq.lock, irqflags);
radeon_irq_set(rdev);
spin_unlock_irqrestore(&rdev->irq.lock, irqflags);
}
spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
}