From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 185 +++++++++++++++++++++++++++++----------------
1 files changed, 118 insertions(+), 67 deletions(-)
diff --git a/kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 18402a6..5820551 100644
--- a/kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -43,14 +43,19 @@
*/
#include <linux/irq.h>
-#include <drm/drmP.h>
+#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 "amdgpu.h"
#include "amdgpu_ih.h"
#include "atom.h"
#include "amdgpu_connectors.h"
#include "amdgpu_trace.h"
+#include "amdgpu_amdkfd.h"
+#include "amdgpu_ras.h"
#include <linux/pm_runtime.h>
@@ -80,33 +85,19 @@
{
struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
hotplug_work);
- struct drm_device *dev = adev->ddev;
+ struct drm_device *dev = adev_to_drm(adev);
struct drm_mode_config *mode_config = &dev->mode_config;
struct drm_connector *connector;
+ struct drm_connector_list_iter iter;
mutex_lock(&mode_config->mutex);
- list_for_each_entry(connector, &mode_config->connector_list, head)
+ drm_connector_list_iter_begin(dev, &iter);
+ drm_for_each_connector_iter(connector, &iter)
amdgpu_connector_hotplug(connector);
+ drm_connector_list_iter_end(&iter);
mutex_unlock(&mode_config->mutex);
/* Just fire off a uevent and let userspace tell us what to do */
drm_helper_hpd_irq_event(dev);
-}
-
-/**
- * amdgpu_irq_reset_work_func - execute GPU reset
- *
- * @work: work struct pointer
- *
- * Execute scheduled GPU reset (Cayman+).
- * This function is called when the IRQ handler thinks we need a GPU reset.
- */
-static void amdgpu_irq_reset_work_func(struct work_struct *work)
-{
- struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
- reset_work);
-
- if (!amdgpu_sriov_vf(adev))
- amdgpu_device_gpu_recover(adev, NULL, false);
}
/**
@@ -123,7 +114,7 @@
int r;
spin_lock_irqsave(&adev->irq.lock, irqflags);
- for (i = 0; i < AMDGPU_IH_CLIENTID_MAX; ++i) {
+ for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {
if (!adev->irq.client[i].sources)
continue;
@@ -160,13 +151,59 @@
irqreturn_t amdgpu_irq_handler(int irq, void *arg)
{
struct drm_device *dev = (struct drm_device *) arg;
- struct amdgpu_device *adev = dev->dev_private;
+ struct amdgpu_device *adev = drm_to_adev(dev);
irqreturn_t ret;
- ret = amdgpu_ih_process(adev);
+ ret = amdgpu_ih_process(adev, &adev->irq.ih);
if (ret == IRQ_HANDLED)
pm_runtime_mark_last_busy(dev->dev);
+
+ /* For the hardware that cannot enable bif ring for both ras_controller_irq
+ * and ras_err_evnet_athub_irq ih cookies, the driver has to poll status
+ * register to check whether the interrupt is triggered or not, and properly
+ * 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.funcs &&
+ adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring)
+ adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring(adev);
+ }
+
return ret;
+}
+
+/**
+ * amdgpu_irq_handle_ih1 - kick of processing for IH1
+ *
+ * @work: work structure in struct amdgpu_irq
+ *
+ * Kick of processing IH ring 1.
+ */
+static void amdgpu_irq_handle_ih1(struct work_struct *work)
+{
+ struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
+ irq.ih1_work);
+
+ amdgpu_ih_process(adev, &adev->irq.ih1);
+}
+
+/**
+ * amdgpu_irq_handle_ih2 - kick of processing for IH2
+ *
+ * @work: work structure in struct amdgpu_irq
+ *
+ * Kick of processing IH ring 2.
+ */
+static void amdgpu_irq_handle_ih2(struct work_struct *work)
+{
+ struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
+ irq.ih2_work);
+
+ amdgpu_ih_process(adev, &adev->irq.ih2);
}
/**
@@ -211,20 +248,28 @@
adev->irq.msi_enabled = false;
if (amdgpu_msi_ok(adev)) {
- int ret = pci_enable_msi(adev->pdev);
- if (!ret) {
+ int nvec = pci_msix_vec_count(adev->pdev);
+ unsigned int flags;
+
+ if (nvec <= 0) {
+ flags = PCI_IRQ_MSI;
+ } else {
+ flags = PCI_IRQ_MSI | PCI_IRQ_MSIX;
+ }
+ /* we only need one vector */
+ nvec = pci_alloc_irq_vectors(adev->pdev, 1, 1, flags);
+ if (nvec > 0) {
adev->irq.msi_enabled = true;
- dev_dbg(adev->dev, "amdgpu: using MSI.\n");
+ dev_dbg(adev->dev, "using MSI/MSI-X.\n");
}
}
if (!amdgpu_device_has_dc_support(adev)) {
if (!adev->enable_virtual_display)
/* Disable vblank IRQs aggressively for power-saving */
- /* XXX: can this be enabled for DC? */
- adev->ddev->vblank_disable_immediate = true;
+ adev_to_drm(adev)->vblank_disable_immediate = true;
- r = drm_vblank_init(adev->ddev, adev->mode_info.num_crtc);
+ r = drm_vblank_init(adev_to_drm(adev), adev->mode_info.num_crtc);
if (r)
return r;
@@ -233,18 +278,19 @@
amdgpu_hotplug_work_func);
}
- INIT_WORK(&adev->reset_work, amdgpu_irq_reset_work_func);
+ INIT_WORK(&adev->irq.ih1_work, amdgpu_irq_handle_ih1);
+ INIT_WORK(&adev->irq.ih2_work, amdgpu_irq_handle_ih2);
adev->irq.installed = true;
- r = drm_irq_install(adev->ddev, adev->ddev->pdev->irq);
+ /* Use vector 0 for MSI-X */
+ r = drm_irq_install(adev_to_drm(adev), pci_irq_vector(adev->pdev, 0));
if (r) {
adev->irq.installed = false;
if (!amdgpu_device_has_dc_support(adev))
flush_work(&adev->hotplug_work);
- cancel_work_sync(&adev->reset_work);
return r;
}
- adev->ddev->max_vblank_count = 0x00ffffff;
+ adev_to_drm(adev)->max_vblank_count = 0x00ffffff;
DRM_DEBUG("amdgpu: irq initialized.\n");
return 0;
@@ -264,16 +310,15 @@
unsigned i, j;
if (adev->irq.installed) {
- drm_irq_uninstall(adev->ddev);
+ drm_irq_uninstall(adev_to_drm(adev));
adev->irq.installed = false;
if (adev->irq.msi_enabled)
- pci_disable_msi(adev->pdev);
+ pci_free_irq_vectors(adev->pdev);
if (!amdgpu_device_has_dc_support(adev))
flush_work(&adev->hotplug_work);
- cancel_work_sync(&adev->reset_work);
}
- for (i = 0; i < AMDGPU_IH_CLIENTID_MAX; ++i) {
+ for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {
if (!adev->irq.client[i].sources)
continue;
@@ -313,7 +358,7 @@
unsigned client_id, unsigned src_id,
struct amdgpu_irq_src *source)
{
- if (client_id >= AMDGPU_IH_CLIENTID_MAX)
+ if (client_id >= AMDGPU_IRQ_CLIENTID_MAX)
return -EINVAL;
if (src_id >= AMDGPU_MAX_IRQ_SRC_ID)
@@ -353,49 +398,55 @@
* amdgpu_irq_dispatch - dispatch IRQ to IP blocks
*
* @adev: amdgpu device pointer
- * @entry: interrupt vector pointer
+ * @ih: interrupt ring instance
*
* Dispatches IRQ to IP blocks.
*/
void amdgpu_irq_dispatch(struct amdgpu_device *adev,
- struct amdgpu_iv_entry *entry)
+ struct amdgpu_ih_ring *ih)
{
- unsigned client_id = entry->client_id;
- unsigned src_id = entry->src_id;
+ u32 ring_index = ih->rptr >> 2;
+ struct amdgpu_iv_entry entry;
+ unsigned client_id, src_id;
struct amdgpu_irq_src *src;
+ bool handled = false;
int r;
- trace_amdgpu_iv(entry);
+ entry.iv_entry = (const uint32_t *)&ih->ring[ring_index];
+ amdgpu_ih_decode_iv(adev, &entry);
- if (client_id >= AMDGPU_IH_CLIENTID_MAX) {
+ trace_amdgpu_iv(ih - &adev->irq.ih, &entry);
+
+ client_id = entry.client_id;
+ src_id = entry.src_id;
+
+ if (client_id >= AMDGPU_IRQ_CLIENTID_MAX) {
DRM_DEBUG("Invalid client_id in IV: %d\n", client_id);
- return;
- }
- if (src_id >= AMDGPU_MAX_IRQ_SRC_ID) {
+ } else if (src_id >= AMDGPU_MAX_IRQ_SRC_ID) {
DRM_DEBUG("Invalid src_id in IV: %d\n", src_id);
- return;
- }
- if (adev->irq.virq[src_id]) {
+ } else if (adev->irq.virq[src_id]) {
generic_handle_irq(irq_find_mapping(adev->irq.domain, src_id));
- } else {
- if (!adev->irq.client[client_id].sources) {
- DRM_DEBUG("Unregistered interrupt client_id: %d src_id: %d\n",
- client_id, src_id);
- return;
- }
- src = adev->irq.client[client_id].sources[src_id];
- if (!src) {
- DRM_DEBUG("Unhandled interrupt src_id: %d\n", src_id);
- return;
- }
+ } else if (!adev->irq.client[client_id].sources) {
+ DRM_DEBUG("Unregistered interrupt client_id: %d src_id: %d\n",
+ client_id, src_id);
- r = src->funcs->process(adev, src, entry);
- if (r)
+ } else if ((src = adev->irq.client[client_id].sources[src_id])) {
+ r = src->funcs->process(adev, src, &entry);
+ if (r < 0)
DRM_ERROR("error processing interrupt (%d)\n", r);
+ else if (r)
+ handled = true;
+
+ } else {
+ DRM_DEBUG("Unhandled interrupt src_id: %d\n", src_id);
}
+
+ /* Send it to amdkfd as well if it isn't already handled */
+ if (!handled)
+ amdgpu_amdkfd_interrupt(adev, entry.iv_entry);
}
/**
@@ -440,7 +491,7 @@
{
int i, j, k;
- for (i = 0; i < AMDGPU_IH_CLIENTID_MAX; ++i) {
+ for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {
if (!adev->irq.client[i].sources)
continue;
@@ -470,7 +521,7 @@
int amdgpu_irq_get(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
unsigned type)
{
- if (!adev->ddev->irq_enabled)
+ if (!adev_to_drm(adev)->irq_enabled)
return -ENOENT;
if (type >= src->num_types)
@@ -500,7 +551,7 @@
int amdgpu_irq_put(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
unsigned type)
{
- if (!adev->ddev->irq_enabled)
+ if (!adev_to_drm(adev)->irq_enabled)
return -ENOENT;
if (type >= src->num_types)
@@ -531,7 +582,7 @@
bool amdgpu_irq_enabled(struct amdgpu_device *adev, struct amdgpu_irq_src *src,
unsigned type)
{
- if (!adev->ddev->irq_enabled)
+ if (!adev_to_drm(adev)->irq_enabled)
return false;
if (type >= src->num_types)
--
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