accel/ivpu: Add PM support
- Implement cold and warm firmware boot flows - Add hang recovery support - Add runtime power management support Co-developed-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com> Signed-off-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20230117092723.60441-8-jacek.lawrynowicz@linux.intel.com
This commit is contained in:
Jacek Lawrynowicz
Daniel Vetter
Родитель
cd7272215c
Коммит
852be13f3b
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@ -10,6 +10,7 @@ intel_vpu-y := \
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ivpu_job.o \
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ivpu_jsm_msg.o \
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ivpu_mmu.o \
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ivpu_mmu_context.o
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ivpu_mmu_context.o \
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ivpu_pm.o
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obj-$(CONFIG_DRM_ACCEL_IVPU) += intel_vpu.o
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@ -24,6 +24,7 @@
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#include "ivpu_jsm_msg.h"
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#include "ivpu_mmu.h"
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#include "ivpu_mmu_context.h"
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#include "ivpu_pm.h"
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#ifndef DRIVER_VERSION_STR
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#define DRIVER_VERSION_STR __stringify(DRM_IVPU_DRIVER_MAJOR) "." \
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@ -462,6 +463,10 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
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if (!vdev->ipc)
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return -ENOMEM;
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vdev->pm = drmm_kzalloc(&vdev->drm, sizeof(*vdev->pm), GFP_KERNEL);
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if (!vdev->pm)
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return -ENOMEM;
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vdev->hw->ops = &ivpu_hw_mtl_ops;
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vdev->platform = IVPU_PLATFORM_INVALID;
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vdev->context_xa_limit.min = IVPU_GLOBAL_CONTEXT_MMU_SSID + 1;
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@ -521,6 +526,12 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
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goto err_fw_fini;
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}
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ret = ivpu_pm_init(vdev);
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if (ret) {
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ivpu_err(vdev, "Failed to initialize PM: %d\n", ret);
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goto err_ipc_fini;
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}
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ret = ivpu_job_done_thread_init(vdev);
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if (ret) {
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ivpu_err(vdev, "Failed to initialize job done thread: %d\n", ret);
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@ -539,6 +550,8 @@ static int ivpu_dev_init(struct ivpu_device *vdev)
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goto err_job_done_thread_fini;
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}
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ivpu_pm_enable(vdev);
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return 0;
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err_job_done_thread_fini:
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@ -559,6 +572,7 @@ err_xa_destroy:
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static void ivpu_dev_fini(struct ivpu_device *vdev)
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{
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ivpu_pm_disable(vdev);
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ivpu_shutdown(vdev);
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ivpu_job_done_thread_fini(vdev);
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ivpu_ipc_fini(vdev);
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@ -611,11 +625,25 @@ static void ivpu_remove(struct pci_dev *pdev)
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ivpu_dev_fini(vdev);
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}
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static const struct dev_pm_ops ivpu_drv_pci_pm = {
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SET_SYSTEM_SLEEP_PM_OPS(ivpu_pm_suspend_cb, ivpu_pm_resume_cb)
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SET_RUNTIME_PM_OPS(ivpu_pm_runtime_suspend_cb, ivpu_pm_runtime_resume_cb, NULL)
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};
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static const struct pci_error_handlers ivpu_drv_pci_err = {
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.reset_prepare = ivpu_pm_reset_prepare_cb,
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.reset_done = ivpu_pm_reset_done_cb,
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};
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static struct pci_driver ivpu_pci_driver = {
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.name = KBUILD_MODNAME,
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.id_table = ivpu_pci_ids,
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.probe = ivpu_probe,
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.remove = ivpu_remove,
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.driver = {
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.pm = &ivpu_drv_pci_pm,
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},
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.err_handler = &ivpu_drv_pci_err,
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};
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module_pci_driver(ivpu_pci_driver);
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@ -76,6 +76,7 @@ struct ivpu_hw_info;
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struct ivpu_mmu_info;
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struct ivpu_fw_info;
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struct ivpu_ipc_info;
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struct ivpu_pm_info;
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struct ivpu_device {
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struct drm_device drm;
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@ -89,6 +90,7 @@ struct ivpu_device {
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struct ivpu_mmu_info *mmu;
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struct ivpu_fw_info *fw;
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struct ivpu_ipc_info *ipc;
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struct ivpu_pm_info *pm;
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struct ivpu_mmu_context gctx;
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struct xarray context_xa;
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@ -14,6 +14,7 @@
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#include "ivpu_gem.h"
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#include "ivpu_hw.h"
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#include "ivpu_ipc.h"
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#include "ivpu_pm.h"
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#define FW_GLOBAL_MEM_START (2ull * SZ_1G)
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#define FW_GLOBAL_MEM_END (3ull * SZ_1G)
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@ -361,9 +362,12 @@ void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params
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/* In case of warm boot we only have to reset the entrypoint addr */
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if (!ivpu_fw_is_cold_boot(vdev)) {
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boot_params->save_restore_ret_address = 0;
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vdev->pm->is_warmboot = true;
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return;
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}
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vdev->pm->is_warmboot = false;
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boot_params->magic = VPU_BOOT_PARAMS_MAGIC;
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boot_params->vpu_id = to_pci_dev(vdev->drm.dev)->bus->number;
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boot_params->frequency = ivpu_hw_reg_pll_freq_get(vdev);
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@ -10,6 +10,7 @@
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#include "ivpu_hw.h"
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#include "ivpu_ipc.h"
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#include "ivpu_mmu.h"
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#include "ivpu_pm.h"
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#define TILE_FUSE_ENABLE_BOTH 0x0
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#define TILE_FUSE_ENABLE_UPPER 0x1
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@ -921,6 +922,8 @@ static void ivpu_hw_mtl_irq_disable(struct ivpu_device *vdev)
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static void ivpu_hw_mtl_irq_wdt_nce_handler(struct ivpu_device *vdev)
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{
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ivpu_err_ratelimited(vdev, "WDT NCE irq\n");
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ivpu_pm_schedule_recovery(vdev);
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}
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static void ivpu_hw_mtl_irq_wdt_mss_handler(struct ivpu_device *vdev)
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@ -928,11 +931,14 @@ static void ivpu_hw_mtl_irq_wdt_mss_handler(struct ivpu_device *vdev)
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ivpu_err_ratelimited(vdev, "WDT MSS irq\n");
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ivpu_hw_wdt_disable(vdev);
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ivpu_pm_schedule_recovery(vdev);
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}
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static void ivpu_hw_mtl_irq_noc_firewall_handler(struct ivpu_device *vdev)
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{
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ivpu_err_ratelimited(vdev, "NOC Firewall irq\n");
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ivpu_pm_schedule_recovery(vdev);
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}
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/* Handler for IRQs from VPU core (irqV) */
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@ -970,6 +976,7 @@ static u32 ivpu_hw_mtl_irqv_handler(struct ivpu_device *vdev, int irq)
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static u32 ivpu_hw_mtl_irqb_handler(struct ivpu_device *vdev, int irq)
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{
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u32 status = REGB_RD32(MTL_BUTTRESS_INTERRUPT_STAT) & BUTTRESS_IRQ_MASK;
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bool schedule_recovery = false;
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if (status == 0)
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return 0;
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@ -983,6 +990,7 @@ static u32 ivpu_hw_mtl_irqb_handler(struct ivpu_device *vdev, int irq)
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if (REG_TEST_FLD(MTL_BUTTRESS_INTERRUPT_STAT, ATS_ERR, status)) {
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ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(MTL_BUTTRESS_ATS_ERR_LOG_0));
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REGB_WR32(MTL_BUTTRESS_ATS_ERR_CLEAR, 0x1);
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schedule_recovery = true;
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}
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if (REG_TEST_FLD(MTL_BUTTRESS_INTERRUPT_STAT, UFI_ERR, status)) {
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@ -993,6 +1001,7 @@ static u32 ivpu_hw_mtl_irqb_handler(struct ivpu_device *vdev, int irq)
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REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, AXI_ID, ufi_log),
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REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, CQ_ID, ufi_log));
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REGB_WR32(MTL_BUTTRESS_UFI_ERR_CLEAR, 0x1);
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schedule_recovery = true;
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}
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/*
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@ -1005,6 +1014,9 @@ static u32 ivpu_hw_mtl_irqb_handler(struct ivpu_device *vdev, int irq)
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/* Re-enable global interrupt */
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REGB_WR32(MTL_BUTTRESS_GLOBAL_INT_MASK, 0x0);
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if (schedule_recovery)
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ivpu_pm_schedule_recovery(vdev);
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return status;
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}
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@ -14,6 +14,7 @@
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#include "ivpu_hw_reg_io.h"
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#include "ivpu_ipc.h"
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#include "ivpu_jsm_msg.h"
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#include "ivpu_pm.h"
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#define IPC_MAX_RX_MSG 128
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#define IS_KTHREAD() (get_current()->flags & PF_KTHREAD)
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@ -294,18 +295,27 @@ int ivpu_ipc_send_receive(struct ivpu_device *vdev, struct vpu_jsm_msg *req,
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{
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struct vpu_jsm_msg hb_req = { .type = VPU_JSM_MSG_QUERY_ENGINE_HB };
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struct vpu_jsm_msg hb_resp;
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int ret;
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int ret, hb_ret;
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ret = ivpu_rpm_get(vdev);
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if (ret < 0)
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return ret;
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ret = ivpu_ipc_send_receive_internal(vdev, req, expected_resp_type, resp,
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channel, timeout_ms);
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if (ret != -ETIMEDOUT)
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return ret;
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goto rpm_put;
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ret = ivpu_ipc_send_receive_internal(vdev, &hb_req, VPU_JSM_MSG_QUERY_ENGINE_HB_DONE,
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&hb_resp, VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
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if (ret == -ETIMEDOUT)
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hb_ret = ivpu_ipc_send_receive_internal(vdev, &hb_req, VPU_JSM_MSG_QUERY_ENGINE_HB_DONE,
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&hb_resp, VPU_IPC_CHAN_ASYNC_CMD,
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vdev->timeout.jsm);
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if (hb_ret == -ETIMEDOUT) {
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ivpu_hw_diagnose_failure(vdev);
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ivpu_pm_schedule_recovery(vdev);
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}
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rpm_put:
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ivpu_rpm_put(vdev);
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return ret;
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}
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@ -17,6 +17,7 @@
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#include "ivpu_ipc.h"
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#include "ivpu_job.h"
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#include "ivpu_jsm_msg.h"
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#include "ivpu_pm.h"
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#define CMD_BUF_IDX 0
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#define JOB_ID_JOB_MASK GENMASK(7, 0)
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@ -270,6 +271,9 @@ static void job_release(struct kref *ref)
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ivpu_dbg(vdev, KREF, "Job released: id %u\n", job->job_id);
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kfree(job);
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/* Allow the VPU to get suspended, must be called after ivpu_file_priv_put() */
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ivpu_rpm_put(vdev);
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}
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static void job_put(struct ivpu_job *job)
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@ -286,11 +290,16 @@ ivpu_create_job(struct ivpu_file_priv *file_priv, u32 engine_idx, u32 bo_count)
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struct ivpu_device *vdev = file_priv->vdev;
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struct ivpu_job *job;
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size_t buf_size;
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int ret;
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ret = ivpu_rpm_get(vdev);
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if (ret < 0)
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return NULL;
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buf_size = sizeof(*job) + bo_count * sizeof(struct ivpu_bo *);
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job = kzalloc(buf_size, GFP_KERNEL);
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if (!job)
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return NULL;
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goto err_rpm_put;
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kref_init(&job->ref);
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@ -311,6 +320,8 @@ ivpu_create_job(struct ivpu_file_priv *file_priv, u32 engine_idx, u32 bo_count)
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err_free_job:
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kfree(job);
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err_rpm_put:
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ivpu_rpm_put(vdev);
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return NULL;
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}
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@ -565,6 +576,7 @@ static int ivpu_job_done_thread(void *arg)
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if (jobs_submitted && !xa_empty(&vdev->submitted_jobs_xa)) {
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ivpu_err(vdev, "TDR detected, timeout %d ms", timeout);
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ivpu_hw_diagnose_failure(vdev);
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ivpu_pm_schedule_recovery(vdev);
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}
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}
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}
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@ -11,6 +11,7 @@
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#include "ivpu_hw_reg_io.h"
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#include "ivpu_mmu.h"
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#include "ivpu_mmu_context.h"
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#include "ivpu_pm.h"
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#define IVPU_MMU_IDR0_REF 0x080f3e0f
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#define IVPU_MMU_IDR0_REF_SIMICS 0x080f3e1f
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@ -814,6 +815,7 @@ static u32 *ivpu_mmu_get_event(struct ivpu_device *vdev)
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void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev)
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{
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bool schedule_recovery = false;
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u32 *event;
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u32 ssid;
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@ -823,9 +825,14 @@ void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev)
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ivpu_mmu_dump_event(vdev, event);
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ssid = FIELD_GET(IVPU_MMU_EVT_SSID_MASK, event[0]);
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if (ssid != IVPU_GLOBAL_CONTEXT_MMU_SSID)
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if (ssid == IVPU_GLOBAL_CONTEXT_MMU_SSID)
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schedule_recovery = true;
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else
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ivpu_mmu_user_context_mark_invalid(vdev, ssid);
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}
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if (schedule_recovery)
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ivpu_pm_schedule_recovery(vdev);
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}
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void ivpu_mmu_irq_gerr_handler(struct ivpu_device *vdev)
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|
|
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@ -0,0 +1,329 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2020-2023 Intel Corporation
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*/
|
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|
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#include <linux/highmem.h>
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#include <linux/moduleparam.h>
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#include <linux/pci.h>
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#include <linux/pm_runtime.h>
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#include <linux/reboot.h>
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#include "vpu_boot_api.h"
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#include "ivpu_drv.h"
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#include "ivpu_hw.h"
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#include "ivpu_fw.h"
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#include "ivpu_ipc.h"
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#include "ivpu_job.h"
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#include "ivpu_mmu.h"
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#include "ivpu_pm.h"
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static bool ivpu_disable_recovery;
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module_param_named_unsafe(disable_recovery, ivpu_disable_recovery, bool, 0644);
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||||
MODULE_PARM_DESC(disable_recovery, "Disables recovery when VPU hang is detected");
|
||||
|
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#define PM_RESCHEDULE_LIMIT 5
|
||||
|
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static void ivpu_pm_prepare_cold_boot(struct ivpu_device *vdev)
|
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{
|
||||
struct ivpu_fw_info *fw = vdev->fw;
|
||||
|
||||
ivpu_cmdq_reset_all_contexts(vdev);
|
||||
ivpu_ipc_reset(vdev);
|
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ivpu_fw_load(vdev);
|
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fw->entry_point = fw->cold_boot_entry_point;
|
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}
|
||||
|
||||
static void ivpu_pm_prepare_warm_boot(struct ivpu_device *vdev)
|
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{
|
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struct ivpu_fw_info *fw = vdev->fw;
|
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struct vpu_boot_params *bp = fw->mem->kvaddr;
|
||||
|
||||
if (!bp->save_restore_ret_address) {
|
||||
ivpu_pm_prepare_cold_boot(vdev);
|
||||
return;
|
||||
}
|
||||
|
||||
ivpu_dbg(vdev, FW_BOOT, "Save/restore entry point %llx", bp->save_restore_ret_address);
|
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fw->entry_point = bp->save_restore_ret_address;
|
||||
}
|
||||
|
||||
static int ivpu_suspend(struct ivpu_device *vdev)
|
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{
|
||||
int ret;
|
||||
|
||||
ret = ivpu_shutdown(vdev);
|
||||
if (ret) {
|
||||
ivpu_err(vdev, "Failed to shutdown VPU: %d\n", ret);
|
||||
return ret;
|
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}
|
||||
|
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return ret;
|
||||
}
|
||||
|
||||
static int ivpu_resume(struct ivpu_device *vdev)
|
||||
{
|
||||
int ret;
|
||||
|
||||
retry:
|
||||
ret = ivpu_hw_power_up(vdev);
|
||||
if (ret) {
|
||||
ivpu_err(vdev, "Failed to power up HW: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = ivpu_mmu_enable(vdev);
|
||||
if (ret) {
|
||||
ivpu_err(vdev, "Failed to resume MMU: %d\n", ret);
|
||||
ivpu_hw_power_down(vdev);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = ivpu_boot(vdev);
|
||||
if (ret) {
|
||||
ivpu_mmu_disable(vdev);
|
||||
ivpu_hw_power_down(vdev);
|
||||
if (!ivpu_fw_is_cold_boot(vdev)) {
|
||||
ivpu_warn(vdev, "Failed to resume the FW: %d. Retrying cold boot..\n", ret);
|
||||
ivpu_pm_prepare_cold_boot(vdev);
|
||||
goto retry;
|
||||
} else {
|
||||
ivpu_err(vdev, "Failed to resume the FW: %d\n", ret);
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void ivpu_pm_recovery_work(struct work_struct *work)
|
||||
{
|
||||
struct ivpu_pm_info *pm = container_of(work, struct ivpu_pm_info, recovery_work);
|
||||
struct ivpu_device *vdev = pm->vdev;
|
||||
char *evt[2] = {"IVPU_PM_EVENT=IVPU_RECOVER", NULL};
|
||||
int ret;
|
||||
|
||||
ret = pci_reset_function(to_pci_dev(vdev->drm.dev));
|
||||
if (ret)
|
||||
ivpu_err(vdev, "Failed to reset VPU: %d\n", ret);
|
||||
|
||||
kobject_uevent_env(&vdev->drm.dev->kobj, KOBJ_CHANGE, evt);
|
||||
}
|
||||
|
||||
void ivpu_pm_schedule_recovery(struct ivpu_device *vdev)
|
||||
{
|
||||
struct ivpu_pm_info *pm = vdev->pm;
|
||||
|
||||
if (ivpu_disable_recovery) {
|
||||
ivpu_err(vdev, "Recovery not available when disable_recovery param is set\n");
|
||||
return;
|
||||
}
|
||||
|
||||
if (ivpu_is_fpga(vdev)) {
|
||||
ivpu_err(vdev, "Recovery not available on FPGA\n");
|
||||
return;
|
||||
}
|
||||
|
||||
/* Schedule recovery if it's not in progress */
|
||||
if (atomic_cmpxchg(&pm->in_reset, 0, 1) == 0) {
|
||||
ivpu_hw_irq_disable(vdev);
|
||||
queue_work(system_long_wq, &pm->recovery_work);
|
||||
}
|
||||
}
|
||||
|
||||
int ivpu_pm_suspend_cb(struct device *dev)
|
||||
{
|
||||
struct drm_device *drm = dev_get_drvdata(dev);
|
||||
struct ivpu_device *vdev = to_ivpu_device(drm);
|
||||
int ret;
|
||||
|
||||
ivpu_dbg(vdev, PM, "Suspend..\n");
|
||||
|
||||
ret = ivpu_suspend(vdev);
|
||||
if (ret && vdev->pm->suspend_reschedule_counter) {
|
||||
ivpu_dbg(vdev, PM, "Failed to enter idle, rescheduling suspend, retries left %d\n",
|
||||
vdev->pm->suspend_reschedule_counter);
|
||||
pm_schedule_suspend(dev, vdev->timeout.reschedule_suspend);
|
||||
vdev->pm->suspend_reschedule_counter--;
|
||||
return -EBUSY;
|
||||
} else if (!vdev->pm->suspend_reschedule_counter) {
|
||||
ivpu_warn(vdev, "Failed to enter idle, force suspend\n");
|
||||
ivpu_pm_prepare_cold_boot(vdev);
|
||||
} else {
|
||||
ivpu_pm_prepare_warm_boot(vdev);
|
||||
}
|
||||
|
||||
vdev->pm->suspend_reschedule_counter = PM_RESCHEDULE_LIMIT;
|
||||
|
||||
pci_save_state(to_pci_dev(dev));
|
||||
pci_set_power_state(to_pci_dev(dev), PCI_D3hot);
|
||||
|
||||
ivpu_dbg(vdev, PM, "Suspend done.\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ivpu_pm_resume_cb(struct device *dev)
|
||||
{
|
||||
struct drm_device *drm = dev_get_drvdata(dev);
|
||||
struct ivpu_device *vdev = to_ivpu_device(drm);
|
||||
int ret;
|
||||
|
||||
ivpu_dbg(vdev, PM, "Resume..\n");
|
||||
|
||||
pci_set_power_state(to_pci_dev(dev), PCI_D0);
|
||||
pci_restore_state(to_pci_dev(dev));
|
||||
|
||||
ret = ivpu_resume(vdev);
|
||||
if (ret)
|
||||
ivpu_err(vdev, "Failed to resume: %d\n", ret);
|
||||
|
||||
ivpu_dbg(vdev, PM, "Resume done.\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ivpu_pm_runtime_suspend_cb(struct device *dev)
|
||||
{
|
||||
struct drm_device *drm = dev_get_drvdata(dev);
|
||||
struct ivpu_device *vdev = to_ivpu_device(drm);
|
||||
int ret;
|
||||
|
||||
ivpu_dbg(vdev, PM, "Runtime suspend..\n");
|
||||
|
||||
if (!ivpu_hw_is_idle(vdev) && vdev->pm->suspend_reschedule_counter) {
|
||||
ivpu_dbg(vdev, PM, "Failed to enter idle, rescheduling suspend, retries left %d\n",
|
||||
vdev->pm->suspend_reschedule_counter);
|
||||
pm_schedule_suspend(dev, vdev->timeout.reschedule_suspend);
|
||||
vdev->pm->suspend_reschedule_counter--;
|
||||
return -EAGAIN;
|
||||
}
|
||||
|
||||
ret = ivpu_suspend(vdev);
|
||||
if (ret)
|
||||
ivpu_err(vdev, "Failed to set suspend VPU: %d\n", ret);
|
||||
|
||||
if (!vdev->pm->suspend_reschedule_counter) {
|
||||
ivpu_warn(vdev, "VPU failed to enter idle, force suspended.\n");
|
||||
ivpu_pm_prepare_cold_boot(vdev);
|
||||
} else {
|
||||
ivpu_pm_prepare_warm_boot(vdev);
|
||||
}
|
||||
|
||||
vdev->pm->suspend_reschedule_counter = PM_RESCHEDULE_LIMIT;
|
||||
|
||||
ivpu_dbg(vdev, PM, "Runtime suspend done.\n");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ivpu_pm_runtime_resume_cb(struct device *dev)
|
||||
{
|
||||
struct drm_device *drm = dev_get_drvdata(dev);
|
||||
struct ivpu_device *vdev = to_ivpu_device(drm);
|
||||
int ret;
|
||||
|
||||
ivpu_dbg(vdev, PM, "Runtime resume..\n");
|
||||
|
||||
ret = ivpu_resume(vdev);
|
||||
if (ret)
|
||||
ivpu_err(vdev, "Failed to set RESUME state: %d\n", ret);
|
||||
|
||||
ivpu_dbg(vdev, PM, "Runtime resume done.\n");
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int ivpu_rpm_get(struct ivpu_device *vdev)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ivpu_dbg(vdev, RPM, "rpm_get count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
|
||||
|
||||
ret = pm_runtime_resume_and_get(vdev->drm.dev);
|
||||
if (!drm_WARN_ON(&vdev->drm, ret < 0))
|
||||
vdev->pm->suspend_reschedule_counter = PM_RESCHEDULE_LIMIT;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
void ivpu_rpm_put(struct ivpu_device *vdev)
|
||||
{
|
||||
ivpu_dbg(vdev, RPM, "rpm_put count %d\n", atomic_read(&vdev->drm.dev->power.usage_count));
|
||||
|
||||
pm_runtime_mark_last_busy(vdev->drm.dev);
|
||||
pm_runtime_put_autosuspend(vdev->drm.dev);
|
||||
}
|
||||
|
||||
void ivpu_pm_reset_prepare_cb(struct pci_dev *pdev)
|
||||
{
|
||||
struct ivpu_device *vdev = pci_get_drvdata(pdev);
|
||||
|
||||
pm_runtime_get_sync(vdev->drm.dev);
|
||||
|
||||
ivpu_dbg(vdev, PM, "Pre-reset..\n");
|
||||
atomic_set(&vdev->pm->in_reset, 1);
|
||||
ivpu_shutdown(vdev);
|
||||
ivpu_pm_prepare_cold_boot(vdev);
|
||||
ivpu_jobs_abort_all(vdev);
|
||||
ivpu_dbg(vdev, PM, "Pre-reset done.\n");
|
||||
}
|
||||
|
||||
void ivpu_pm_reset_done_cb(struct pci_dev *pdev)
|
||||
{
|
||||
struct ivpu_device *vdev = pci_get_drvdata(pdev);
|
||||
int ret;
|
||||
|
||||
ivpu_dbg(vdev, PM, "Post-reset..\n");
|
||||
ret = ivpu_resume(vdev);
|
||||
if (ret)
|
||||
ivpu_err(vdev, "Failed to set RESUME state: %d\n", ret);
|
||||
atomic_set(&vdev->pm->in_reset, 0);
|
||||
ivpu_dbg(vdev, PM, "Post-reset done.\n");
|
||||
|
||||
pm_runtime_put_autosuspend(vdev->drm.dev);
|
||||
}
|
||||
|
||||
int ivpu_pm_init(struct ivpu_device *vdev)
|
||||
{
|
||||
struct device *dev = vdev->drm.dev;
|
||||
struct ivpu_pm_info *pm = vdev->pm;
|
||||
|
||||
pm->vdev = vdev;
|
||||
pm->suspend_reschedule_counter = PM_RESCHEDULE_LIMIT;
|
||||
|
||||
atomic_set(&pm->in_reset, 0);
|
||||
INIT_WORK(&pm->recovery_work, ivpu_pm_recovery_work);
|
||||
|
||||
pm_runtime_use_autosuspend(dev);
|
||||
|
||||
if (ivpu_disable_recovery)
|
||||
pm_runtime_set_autosuspend_delay(dev, -1);
|
||||
else if (ivpu_is_silicon(vdev))
|
||||
pm_runtime_set_autosuspend_delay(dev, 100);
|
||||
else
|
||||
pm_runtime_set_autosuspend_delay(dev, 60000);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void ivpu_pm_enable(struct ivpu_device *vdev)
|
||||
{
|
||||
struct device *dev = vdev->drm.dev;
|
||||
|
||||
pm_runtime_set_active(dev);
|
||||
pm_runtime_allow(dev);
|
||||
pm_runtime_mark_last_busy(dev);
|
||||
pm_runtime_put_autosuspend(dev);
|
||||
|
||||
ivpu_dbg(vdev, RPM, "Enable RPM count %d\n", atomic_read(&dev->power.usage_count));
|
||||
}
|
||||
|
||||
void ivpu_pm_disable(struct ivpu_device *vdev)
|
||||
{
|
||||
struct device *dev = vdev->drm.dev;
|
||||
|
||||
ivpu_dbg(vdev, RPM, "Disable RPM count %d\n", atomic_read(&dev->power.usage_count));
|
||||
|
||||
pm_runtime_get_noresume(vdev->drm.dev);
|
||||
pm_runtime_forbid(vdev->drm.dev);
|
||||
}
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
/*
|
||||
* Copyright (C) 2020-2023 Intel Corporation
|
||||
*/
|
||||
|
||||
#ifndef __IVPU_PM_H__
|
||||
#define __IVPU_PM_H__
|
||||
|
||||
#include <linux/types.h>
|
||||
|
||||
struct ivpu_device;
|
||||
|
||||
struct ivpu_pm_info {
|
||||
struct ivpu_device *vdev;
|
||||
struct work_struct recovery_work;
|
||||
atomic_t in_reset;
|
||||
bool is_warmboot;
|
||||
u32 suspend_reschedule_counter;
|
||||
};
|
||||
|
||||
int ivpu_pm_init(struct ivpu_device *vdev);
|
||||
void ivpu_pm_enable(struct ivpu_device *vdev);
|
||||
void ivpu_pm_disable(struct ivpu_device *vdev);
|
||||
|
||||
int ivpu_pm_suspend_cb(struct device *dev);
|
||||
int ivpu_pm_resume_cb(struct device *dev);
|
||||
int ivpu_pm_runtime_suspend_cb(struct device *dev);
|
||||
int ivpu_pm_runtime_resume_cb(struct device *dev);
|
||||
|
||||
void ivpu_pm_reset_prepare_cb(struct pci_dev *pdev);
|
||||
void ivpu_pm_reset_done_cb(struct pci_dev *pdev);
|
||||
|
||||
int __must_check ivpu_rpm_get(struct ivpu_device *vdev);
|
||||
void ivpu_rpm_put(struct ivpu_device *vdev);
|
||||
|
||||
void ivpu_pm_schedule_recovery(struct ivpu_device *vdev);
|
||||
|
||||
#endif /* __IVPU_PM_H__ */
|
||||
Загрузка…
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