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From bbbad70deb4be0c773980059f1b492b3626d3074 Mon Sep 17 00:00:00 2001
From: Eric Huang <JinHuiEric.Huang@amd.com>
Date: Fri, 15 Sep 2017 16:38:49 -0400
Subject: [PATCH 1860/4131] drm/amd/powerplay: add register thermal interrupt
in hwmgr_hw_init
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c | 75 ++++++++++++++++++++++++++++-
drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 6 +++
2 files changed, 80 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
index ee04336..cb768f9 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
@@ -26,8 +26,8 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/types.h>
+#include <linux/pci.h>
#include <drm/amdgpu_drm.h>
-#include "cgs_common.h"
#include "power_state.h"
#include "hwmgr.h"
#include "pppcielanes.h"
@@ -51,6 +51,75 @@ uint8_t convert_to_vid(uint16_t vddc)
return (uint8_t) ((6200 - (vddc * VOLTAGE_SCALE)) / 25);
}
+static int phm_get_pci_bus_devfn(struct pp_hwmgr *hwmgr,
+ struct cgs_system_info *sys_info)
+{
+ sys_info->size = sizeof(struct cgs_system_info);
+ sys_info->info_id = CGS_SYSTEM_INFO_PCIE_BUS_DEVFN;
+
+ return cgs_query_system_info(hwmgr->device, sys_info);
+}
+
+static int phm_thermal_l2h_irq(void *private_data,
+ unsigned src_id, const uint32_t *iv_entry)
+{
+ struct pp_hwmgr *hwmgr = (struct pp_hwmgr *)private_data;
+ struct cgs_system_info sys_info = {0};
+ int result;
+
+ result = phm_get_pci_bus_devfn(hwmgr, &sys_info);
+ if (result)
+ return -EINVAL;
+
+ pr_warn("GPU over temperature range detected on PCIe %lld:%lld.%lld!\n",
+ PCI_BUS_NUM(sys_info.value),
+ PCI_SLOT(sys_info.value),
+ PCI_FUNC(sys_info.value));
+ return 0;
+}
+
+static int phm_thermal_h2l_irq(void *private_data,
+ unsigned src_id, const uint32_t *iv_entry)
+{
+ struct pp_hwmgr *hwmgr = (struct pp_hwmgr *)private_data;
+ struct cgs_system_info sys_info = {0};
+ int result;
+
+ result = phm_get_pci_bus_devfn(hwmgr, &sys_info);
+ if (result)
+ return -EINVAL;
+
+ pr_warn("GPU under temperature range detected on PCIe %lld:%lld.%lld!\n",
+ PCI_BUS_NUM(sys_info.value),
+ PCI_SLOT(sys_info.value),
+ PCI_FUNC(sys_info.value));
+ return 0;
+}
+
+static int phm_ctf_irq(void *private_data,
+ unsigned src_id, const uint32_t *iv_entry)
+{
+ struct pp_hwmgr *hwmgr = (struct pp_hwmgr *)private_data;
+ struct cgs_system_info sys_info = {0};
+ int result;
+
+ result = phm_get_pci_bus_devfn(hwmgr, &sys_info);
+ if (result)
+ return -EINVAL;
+
+ pr_warn("GPU Critical Temperature Fault detected on PCIe %lld:%lld.%lld!\n",
+ PCI_BUS_NUM(sys_info.value),
+ PCI_SLOT(sys_info.value),
+ PCI_FUNC(sys_info.value));
+ return 0;
+}
+
+static const struct cgs_irq_src_funcs thermal_irq_src[3] = {
+ {NULL, phm_thermal_l2h_irq},
+ {NULL, phm_thermal_h2l_irq},
+ {NULL, phm_ctf_irq}
+};
+
int hwmgr_early_init(struct pp_instance *handle)
{
struct pp_hwmgr *hwmgr;
@@ -179,6 +248,10 @@ int hwmgr_hw_init(struct pp_instance *handle)
if (ret)
goto err2;
+ ret = phm_register_thermal_interrupt(hwmgr, &thermal_irq_src);
+ if (ret)
+ goto err2;
+
return 0;
err2:
if (hwmgr->hwmgr_func->backend_fini)
diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
index f4b6f0e..fa83e69 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h
@@ -32,6 +32,7 @@
#include "ppatomctrl.h"
#include "hwmgr_ppt.h"
#include "power_state.h"
+#include "cgs_linux.h"
struct pp_instance;
struct pp_hwmgr;
@@ -746,6 +747,11 @@ struct pp_hwmgr {
bool en_umd_pstate;
};
+struct cgs_irq_src_funcs {
+ cgs_irq_source_set_func_t set;
+ cgs_irq_handler_func_t handler;
+};
+
extern int hwmgr_early_init(struct pp_instance *handle);
extern int hwmgr_hw_init(struct pp_instance *handle);
extern int hwmgr_hw_fini(struct pp_instance *handle);
--
2.7.4
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