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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c130
1 files changed, 98 insertions, 32 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index afbbec82a289..cc2e0c9cfe0a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -46,9 +46,9 @@
#include <linux/pci.h>
#include <drm/drm_crtc_helper.h>
-#include <drm/drm_irq.h>
#include <drm/drm_vblank.h>
#include <drm/amdgpu_drm.h>
+#include <drm/drm_drv.h>
#include "amdgpu.h"
#include "amdgpu_ih.h"
#include "atom.h"
@@ -65,6 +65,41 @@
#define AMDGPU_WAIT_IDLE_TIMEOUT 200
+const char *soc15_ih_clientid_name[] = {
+ "IH",
+ "SDMA2 or ACP",
+ "ATHUB",
+ "BIF",
+ "SDMA3 or DCE",
+ "SDMA4 or ISP",
+ "VMC1 or PCIE0",
+ "RLC",
+ "SDMA0",
+ "SDMA1",
+ "SE0SH",
+ "SE1SH",
+ "SE2SH",
+ "SE3SH",
+ "VCN1 or UVD1",
+ "THM",
+ "VCN or UVD",
+ "SDMA5 or VCE0",
+ "VMC",
+ "SDMA6 or XDMA",
+ "GRBM_CP",
+ "ATS",
+ "ROM_SMUIO",
+ "DF",
+ "SDMA7 or VCE1",
+ "PWR",
+ "reserved",
+ "UTCL2",
+ "EA",
+ "UTCL2LOG",
+ "MP0",
+ "MP1"
+};
+
/**
* amdgpu_hotplug_work_func - work handler for display hotplug event
*
@@ -148,7 +183,7 @@ void amdgpu_irq_disable_all(struct amdgpu_device *adev)
* Returns:
* result of handling the IRQ, as defined by &irqreturn_t
*/
-irqreturn_t amdgpu_irq_handler(int irq, void *arg)
+static irqreturn_t amdgpu_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *) arg;
struct amdgpu_device *adev = drm_to_adev(dev);
@@ -164,13 +199,13 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg)
* ack the interrupt if it is there
*/
if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__PCIE_BIF)) {
- if (adev->nbio.funcs &&
- adev->nbio.funcs->handle_ras_controller_intr_no_bifring)
- adev->nbio.funcs->handle_ras_controller_intr_no_bifring(adev);
+ if (adev->nbio.ras_funcs &&
+ adev->nbio.ras_funcs->handle_ras_controller_intr_no_bifring)
+ adev->nbio.ras_funcs->handle_ras_controller_intr_no_bifring(adev);
- if (adev->nbio.funcs &&
- adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring)
- adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring(adev);
+ if (adev->nbio.ras_funcs &&
+ adev->nbio.ras_funcs->handle_ras_err_event_athub_intr_no_bifring)
+ adev->nbio.ras_funcs->handle_ras_err_event_athub_intr_no_bifring(adev);
}
return ret;
@@ -242,6 +277,21 @@ static bool amdgpu_msi_ok(struct amdgpu_device *adev)
return true;
}
+static void amdgpu_restore_msix(struct amdgpu_device *adev)
+{
+ u16 ctrl;
+
+ pci_read_config_word(adev->pdev, adev->pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl);
+ if (!(ctrl & PCI_MSIX_FLAGS_ENABLE))
+ return;
+
+ /* VF FLR */
+ ctrl &= ~PCI_MSIX_FLAGS_ENABLE;
+ pci_write_config_word(adev->pdev, adev->pdev->msix_cap + PCI_MSIX_FLAGS, ctrl);
+ ctrl |= PCI_MSIX_FLAGS_ENABLE;
+ pci_write_config_word(adev->pdev, adev->pdev->msix_cap + PCI_MSIX_FLAGS, ctrl);
+}
+
/**
* amdgpu_irq_init - initialize interrupt handling
*
@@ -256,6 +306,7 @@ static bool amdgpu_msi_ok(struct amdgpu_device *adev)
int amdgpu_irq_init(struct amdgpu_device *adev)
{
int r = 0;
+ unsigned int irq;
spin_lock_init(&adev->irq.lock);
@@ -298,21 +349,47 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
INIT_WORK(&adev->irq.ih2_work, amdgpu_irq_handle_ih2);
INIT_WORK(&adev->irq.ih_soft_work, amdgpu_irq_handle_ih_soft);
- adev->irq.installed = true;
- /* Use vector 0 for MSI-X */
- r = drm_irq_install(adev_to_drm(adev), pci_irq_vector(adev->pdev, 0));
+ /* Use vector 0 for MSI-X. */
+ r = pci_irq_vector(adev->pdev, 0);
+ if (r < 0)
+ return r;
+ irq = r;
+
+ /* PCI devices require shared interrupts. */
+ r = request_irq(irq, amdgpu_irq_handler, IRQF_SHARED, adev_to_drm(adev)->driver->name,
+ adev_to_drm(adev));
if (r) {
- adev->irq.installed = false;
if (!amdgpu_device_has_dc_support(adev))
flush_work(&adev->hotplug_work);
return r;
}
+ adev->irq.installed = true;
+ adev->irq.irq = irq;
adev_to_drm(adev)->max_vblank_count = 0x00ffffff;
DRM_DEBUG("amdgpu: irq initialized.\n");
return 0;
}
+
+void amdgpu_irq_fini_hw(struct amdgpu_device *adev)
+{
+ if (adev->irq.installed) {
+ free_irq(adev->irq.irq, adev_to_drm(adev));
+ adev->irq.installed = false;
+ if (adev->irq.msi_enabled)
+ pci_free_irq_vectors(adev->pdev);
+
+ if (!amdgpu_device_has_dc_support(adev))
+ flush_work(&adev->hotplug_work);
+ }
+
+ amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
+ amdgpu_ih_ring_fini(adev, &adev->irq.ih);
+ amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
+ amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
+}
+
/**
* amdgpu_irq_fini - shut down interrupt handling
*
@@ -322,19 +399,10 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
* functionality, shuts down vblank, hotplug and reset interrupt handling,
* turns off interrupts from all sources (all ASICs).
*/
-void amdgpu_irq_fini(struct amdgpu_device *adev)
+void amdgpu_irq_fini_sw(struct amdgpu_device *adev)
{
unsigned i, j;
- if (adev->irq.installed) {
- drm_irq_uninstall(adev_to_drm(adev));
- adev->irq.installed = false;
- if (adev->irq.msi_enabled)
- pci_free_irq_vectors(adev->pdev);
- if (!amdgpu_device_has_dc_support(adev))
- flush_work(&adev->hotplug_work);
- }
-
for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {
if (!adev->irq.client[i].sources)
continue;
@@ -347,11 +415,6 @@ void amdgpu_irq_fini(struct amdgpu_device *adev)
kfree(src->enabled_types);
src->enabled_types = NULL;
- if (src->data) {
- kfree(src->data);
- kfree(src);
- adev->irq.client[i].sources[j] = NULL;
- }
}
kfree(adev->irq.client[i].sources);
adev->irq.client[i].sources = NULL;
@@ -446,7 +509,7 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
} else if ((client_id == AMDGPU_IRQ_CLIENTID_LEGACY) &&
adev->irq.virq[src_id]) {
- generic_handle_irq(irq_find_mapping(adev->irq.domain, src_id));
+ generic_handle_domain_irq(adev->irq.domain, src_id);
} else if (!adev->irq.client[client_id].sources) {
DRM_DEBUG("Unregistered interrupt client_id: %d src_id: %d\n",
@@ -528,6 +591,9 @@ void amdgpu_irq_gpu_reset_resume_helper(struct amdgpu_device *adev)
{
int i, j, k;
+ if (amdgpu_sriov_vf(adev) || amdgpu_passthrough(adev))
+ amdgpu_restore_msix(adev);
+
for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {
if (!adev->irq.client[i].sources)
continue;
@@ -535,7 +601,7 @@ void amdgpu_irq_gpu_reset_resume_helper(struct amdgpu_device *adev)
for (j = 0; j < AMDGPU_MAX_IRQ_SRC_ID; ++j) {
struct amdgpu_irq_src *src = adev->irq.client[i].sources[j];
- if (!src)
+ if (!src || !src->funcs || !src->funcs->set)
continue;
for (k = 0; k < src->num_types; k++)
amdgpu_irq_update(adev, src, k);
@@ -558,7 +624,7 @@ void amdgpu_irq_gpu_reset_resume_helper(struct amdgpu_device *adev)
int amdgpu_irq_get(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
unsigned type)
{
- if (!adev_to_drm(adev)->irq_enabled)
+ if (!adev->irq.installed)
return -ENOENT;
if (type >= src->num_types)
@@ -588,7 +654,7 @@ int amdgpu_irq_get(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
int amdgpu_irq_put(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
unsigned type)
{
- if (!adev_to_drm(adev)->irq_enabled)
+ if (!adev->irq.installed)
return -ENOENT;
if (type >= src->num_types)
@@ -619,7 +685,7 @@ int amdgpu_irq_put(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
bool amdgpu_irq_enabled(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
unsigned type)
{
- if (!adev_to_drm(adev)->irq_enabled)
+ if (!adev->irq.installed)
return false;
if (type >= src->num_types)
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