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Enable Message Signaled Interrupts (MSI) #163

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Merged
merged 1 commit into from
Aug 7, 2019
Merged

Enable Message Signaled Interrupts (MSI) #163

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6 changes: 2 additions & 4 deletions drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
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Original file line number Diff line number Diff line change
Expand Up @@ -60,8 +60,6 @@
#endif

#define AMDGPU_WAIT_IDLE_TIMEOUT 200
#define pci_enable_msi linux_pci_enable_msi
#define pci_disable_msi linux_pci_disable_msi

/**
* amdgpu_hotplug_work_func - work handler for display hotplug event
Expand Down Expand Up @@ -218,7 +216,7 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
adev->irq.msi_enabled = false;

if (amdgpu_msi_ok(adev)) {
#ifdef __linux__
#if defined(__linux__) || defined(pci_enable_msi)
int ret = pci_enable_msi(adev->pdev);
if (!ret) {
adev->irq.msi_enabled = true;
Expand Down Expand Up @@ -272,7 +270,7 @@ void amdgpu_irq_fini(struct amdgpu_device *adev)
if (adev->irq.installed) {
drm_irq_uninstall(adev->ddev);
adev->irq.installed = false;
#ifdef __linux__
#if defined(__linux__) || defined(pci_disable_msi)
if (adev->irq.msi_enabled)
pci_disable_msi(adev->pdev);
#endif
Expand Down
10 changes: 7 additions & 3 deletions drivers/gpu/drm/i915/i915_drv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1555,7 +1555,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
intel_gt_init_workarounds(dev_priv);
i915_gem_load_init_fences(dev_priv);

#ifdef __linux__
#if defined(__linux__) || defined(pci_enable_msi)
/* On the 945G/GM, the chipset reports the MSI capability on the
* integrated graphics even though the support isn't actually there
* according to the published specs. It doesn't appear to function
Expand Down Expand Up @@ -1596,7 +1596,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
return 0;

err_msi:
#ifdef __linux__
#if defined(__linux__) || defined(pci_disable_msi)
if (pdev->msi_enabled)
pci_disable_msi(pdev);
#endif
Expand All @@ -1616,11 +1616,15 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
*/
static void i915_driver_cleanup_hw(struct drm_i915_private *dev_priv)
{
#ifdef __linux__
#if defined(__linux__) || defined(pci_disable_msi)
struct pci_dev *pdev = dev_priv->drm.pdev;
#endif

#ifdef CONFIG_I915_PERF
i915_perf_fini(dev_priv);
#endif

#if defined(__linux__) || defined(pci_disable_msi)
if (pdev->msi_enabled)
pci_disable_msi(pdev);
#endif
Expand Down
4 changes: 2 additions & 2 deletions drivers/gpu/drm/radeon/radeon_irq_kms.c
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Original file line number Diff line number Diff line change
Expand Up @@ -298,7 +298,7 @@ int radeon_irq_kms_init(struct radeon_device *rdev)
rdev->msi_enabled = 0;

if (radeon_msi_ok(rdev)) {
#ifdef __linux__
#if defined(__linux__) || defined(pci_enable_msi)
int ret = pci_enable_msi(rdev->pdev);
if (!ret) {
rdev->msi_enabled = 1;
Expand Down Expand Up @@ -335,7 +335,7 @@ void radeon_irq_kms_fini(struct radeon_device *rdev)
if (rdev->irq.installed) {
drm_irq_uninstall(rdev->ddev);
rdev->irq.installed = false;
#ifdef __linux__
#if defined(__linux__) || defined(pci_disable_msi)
if (rdev->msi_enabled)
pci_disable_msi(rdev->pdev);
#endif
Expand Down