diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 984 |
1 files changed, 820 insertions, 164 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index 956cbbda4793..d31460a9e958 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: MIT /* * Copyright 2012 Advanced Micro Devices, Inc. * @@ -23,18 +24,60 @@ #include <linux/pci.h> #include <linux/acpi.h> +#include <linux/backlight.h> #include <linux/slab.h> +#include <linux/xarray.h> #include <linux/power_supply.h> #include <linux/pm_runtime.h> +#include <linux/suspend.h> #include <acpi/video.h> +#include <acpi/actbl.h> -#include <drm/drm_crtc_helper.h> #include "amdgpu.h" #include "amdgpu_pm.h" #include "amdgpu_display.h" #include "amd_acpi.h" #include "atom.h" +/* Declare GUID for AMD _DSM method for XCCs */ +static const guid_t amd_xcc_dsm_guid = GUID_INIT(0x8267f5d5, 0xa556, 0x44f2, + 0xb8, 0xb4, 0x45, 0x56, 0x2e, + 0x8c, 0x5b, 0xec); + +#define AMD_XCC_HID_START 3000 +#define AMD_XCC_DSM_GET_NUM_FUNCS 0 +#define AMD_XCC_DSM_GET_SUPP_MODE 1 +#define AMD_XCC_DSM_GET_XCP_MODE 2 +#define AMD_XCC_DSM_GET_VF_XCC_MAPPING 4 +#define AMD_XCC_DSM_GET_TMR_INFO 5 +#define AMD_XCC_DSM_NUM_FUNCS 5 + +#define AMD_XCC_MAX_HID 24 + +struct xarray numa_info_xa; + +/* Encapsulates the XCD acpi object information */ +struct amdgpu_acpi_xcc_info { + struct list_head list; + struct amdgpu_numa_info *numa_info; + uint8_t xcp_node; + uint8_t phy_id; + acpi_handle handle; +}; + +struct amdgpu_acpi_dev_info { + struct list_head list; + struct list_head xcc_list; + uint32_t sbdf; + uint16_t supp_xcp_mode; + uint16_t xcp_mode; + uint16_t mem_mode; + uint64_t tmr_base; + uint64_t tmr_size; +}; + +struct list_head amdgpu_acpi_dev_list; + struct amdgpu_atif_notification_cfg { bool enabled; int command_code; @@ -64,16 +107,35 @@ struct amdgpu_atif { struct amdgpu_atif_notifications notifications; struct amdgpu_atif_functions functions; struct amdgpu_atif_notification_cfg notification_cfg; - struct amdgpu_encoder *encoder_for_bl; + struct backlight_device *bd; struct amdgpu_dm_backlight_caps backlight_caps; }; +struct amdgpu_atcs_functions { + bool get_ext_state; + bool pcie_perf_req; + bool pcie_dev_rdy; + bool pcie_bus_width; + bool power_shift_control; +}; + +struct amdgpu_atcs { + acpi_handle handle; + + struct amdgpu_atcs_functions functions; +}; + +static struct amdgpu_acpi_priv { + struct amdgpu_atif atif; + struct amdgpu_atcs atcs; +} amdgpu_acpi_priv; + /* Call the ATIF method */ /** * amdgpu_atif_call - call an ATIF method * - * @handle: acpi handle + * @atif: atif structure * @function: the ATIF function to execute * @params: ATIF function params * @@ -85,6 +147,7 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif, struct acpi_buffer *params) { acpi_status status; + union acpi_object *obj; union acpi_object atif_arg_elements[2]; struct acpi_object_list atif_arg; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -107,16 +170,24 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif, status = acpi_evaluate_object(atif->handle, NULL, &atif_arg, &buffer); + obj = (union acpi_object *)buffer.pointer; - /* Fail only if calling the method fails and ATIF is supported */ - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + /* Fail if calling the method fails */ + if (ACPI_FAILURE(status)) { DRM_DEBUG_DRIVER("failed to evaluate ATIF got %s\n", acpi_format_exception(status)); - kfree(buffer.pointer); + kfree(obj); return NULL; } - return buffer.pointer; + if (obj->type != ACPI_TYPE_BUFFER) { + DRM_DEBUG_DRIVER("bad object returned from ATIF: %d\n", + obj->type); + kfree(obj); + return NULL; + } + + return obj; } /** @@ -163,7 +234,6 @@ static void amdgpu_atif_parse_functions(struct amdgpu_atif_functions *f, u32 mas /** * amdgpu_atif_verify_interface - verify ATIF * - * @handle: acpi handle * @atif: amdgpu atif struct * * Execute the ATIF_FUNCTION_VERIFY_INTERFACE ATIF function @@ -205,40 +275,10 @@ out: return err; } -static acpi_handle amdgpu_atif_probe_handle(acpi_handle dhandle) -{ - acpi_handle handle = NULL; - char acpi_method_name[255] = { 0 }; - struct acpi_buffer buffer = { sizeof(acpi_method_name), acpi_method_name }; - acpi_status status; - - /* For PX/HG systems, ATIF and ATPX are in the iGPU's namespace, on dGPU only - * systems, ATIF is in the dGPU's namespace. - */ - status = acpi_get_handle(dhandle, "ATIF", &handle); - if (ACPI_SUCCESS(status)) - goto out; - - if (amdgpu_has_atpx()) { - status = acpi_get_handle(amdgpu_atpx_get_dhandle(), "ATIF", - &handle); - if (ACPI_SUCCESS(status)) - goto out; - } - - DRM_DEBUG_DRIVER("No ATIF handle found\n"); - return NULL; -out: - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); - DRM_DEBUG_DRIVER("Found ATIF handle %s\n", acpi_method_name); - return handle; -} - /** * amdgpu_atif_get_notification_params - determine notify configuration * - * @handle: acpi handle - * @n: atif notification configuration struct + * @atif: acpi handle * * Execute the ATIF_FUNCTION_GET_SYSTEM_PARAMETERS ATIF function * to determine if a notifier is used and if so which one @@ -301,7 +341,7 @@ out: /** * amdgpu_atif_query_backlight_caps - get min and max backlight input signal * - * @handle: acpi handle + * @atif: acpi handle * * Execute the QUERY_BRIGHTNESS_TRANSFER_CHARACTERISTICS ATIF function * to determine the acceptable range of backlight values @@ -352,6 +392,12 @@ static int amdgpu_atif_query_backlight_caps(struct amdgpu_atif *atif) characteristics.min_input_signal; atif->backlight_caps.max_input_signal = characteristics.max_input_signal; + atif->backlight_caps.ac_level = characteristics.ac_level; + atif->backlight_caps.dc_level = characteristics.dc_level; + atif->backlight_caps.data_points = characteristics.number_of_points; + memcpy(atif->backlight_caps.luminance_data, + characteristics.data_points, + sizeof(atif->backlight_caps.luminance_data)); out: kfree(info); return err; @@ -360,7 +406,7 @@ out: /** * amdgpu_atif_get_sbios_requests - get requested sbios event * - * @handle: acpi handle + * @atif: acpi handle * @req: atif sbios request struct * * Execute the ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS ATIF function @@ -413,7 +459,7 @@ out: static int amdgpu_atif_handler(struct amdgpu_device *adev, struct acpi_bus_event *event) { - struct amdgpu_atif *atif = adev->atif; + struct amdgpu_atif *atif = &amdgpu_acpi_priv.atif; int count; DRM_DEBUG_DRIVER("event, device_class = %s, type = %#x\n", @@ -423,8 +469,7 @@ static int amdgpu_atif_handler(struct amdgpu_device *adev, return NOTIFY_DONE; /* Is this actually our event? */ - if (!atif || - !atif->notification_cfg.enabled || + if (!atif->notification_cfg.enabled || event->type != atif->notification_cfg.command_code) { /* These events will generate keypresses otherwise */ if (event->type == ACPI_VIDEO_NOTIFY_PROBE) @@ -444,52 +489,25 @@ static int amdgpu_atif_handler(struct amdgpu_device *adev, DRM_DEBUG_DRIVER("ATIF: %d pending SBIOS requests\n", count); - if ((req.pending & ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST) && - !amdgpu_device_has_dc_support(adev)) { - struct amdgpu_encoder *enc = atif->encoder_for_bl; - - if (enc) { - struct amdgpu_encoder_atom_dig *dig = enc->enc_priv; - - DRM_DEBUG_DRIVER("Changing brightness to %d\n", - req.backlight_level); - - amdgpu_display_backlight_set_level(adev, enc, req.backlight_level); - -#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) - backlight_force_update(dig->bl_dev, - BACKLIGHT_UPDATE_HOTKEY); -#endif - } - } -#if defined(CONFIG_DRM_AMD_DC) -#if defined(CONFIG_BACKLIGHT_CLASS_DEVICE) || defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE) - if ((req.pending & ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST) && - amdgpu_device_has_dc_support(adev)) { - struct amdgpu_display_manager *dm = &adev->dm; - struct backlight_device *bd = dm->backlight_dev; - - if (bd) { + if (req.pending & ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST) { + if (atif->bd) { DRM_DEBUG_DRIVER("Changing brightness to %d\n", req.backlight_level); - /* * XXX backlight_device_set_brightness() is * hardwired to post BACKLIGHT_UPDATE_SYSFS. * It probably should accept 'reason' parameter. */ - backlight_device_set_brightness(bd, req.backlight_level); + backlight_device_set_brightness(atif->bd, req.backlight_level); } } -#endif -#endif + if (req.pending & ATIF_DGPU_DISPLAY_EVENT) { if (adev->flags & AMD_IS_PX) { - pm_runtime_get_sync(adev->ddev->dev); + pm_runtime_get_sync(adev_to_drm(adev)->dev); /* Just fire off a uevent and let userspace tell us what to do */ - drm_helper_hpd_irq_event(adev->ddev); - pm_runtime_mark_last_busy(adev->ddev->dev); - pm_runtime_put_autosuspend(adev->ddev->dev); + drm_helper_hpd_irq_event(adev_to_drm(adev)); + pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); } } /* TODO: check other events */ @@ -508,14 +526,15 @@ static int amdgpu_atif_handler(struct amdgpu_device *adev, /** * amdgpu_atcs_call - call an ATCS method * - * @handle: acpi handle + * @atcs: atcs structure * @function: the ATCS function to execute * @params: ATCS function params * * Executes the requested ATCS function (all asics). * Returns a pointer to the acpi output buffer. */ -static union acpi_object *amdgpu_atcs_call(acpi_handle handle, int function, +static union acpi_object *amdgpu_atcs_call(struct amdgpu_atcs *atcs, + int function, struct acpi_buffer *params) { acpi_status status; @@ -539,7 +558,7 @@ static union acpi_object *amdgpu_atcs_call(acpi_handle handle, int function, atcs_arg_elements[1].integer.value = 0; } - status = acpi_evaluate_object(handle, "ATCS", &atcs_arg, &buffer); + status = acpi_evaluate_object(atcs->handle, NULL, &atcs_arg, &buffer); /* Fail only if calling the method fails and ATIF is supported */ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { @@ -568,12 +587,12 @@ static void amdgpu_atcs_parse_functions(struct amdgpu_atcs_functions *f, u32 mas f->pcie_perf_req = mask & ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED; f->pcie_dev_rdy = mask & ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED; f->pcie_bus_width = mask & ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED; + f->power_shift_control = mask & ATCS_SET_POWER_SHIFT_CONTROL_SUPPORTED; } /** * amdgpu_atcs_verify_interface - verify ATCS * - * @handle: acpi handle * @atcs: amdgpu atcs struct * * Execute the ATCS_FUNCTION_VERIFY_INTERFACE ATCS function @@ -581,15 +600,14 @@ static void amdgpu_atcs_parse_functions(struct amdgpu_atcs_functions *f, u32 mas * (all asics). * returns 0 on success, error on failure. */ -static int amdgpu_atcs_verify_interface(acpi_handle handle, - struct amdgpu_atcs *atcs) +static int amdgpu_atcs_verify_interface(struct amdgpu_atcs *atcs) { union acpi_object *info; struct atcs_verify_interface output; size_t size; int err = 0; - info = amdgpu_atcs_call(handle, ATCS_FUNCTION_VERIFY_INTERFACE, NULL); + info = amdgpu_atcs_call(atcs, ATCS_FUNCTION_VERIFY_INTERFACE, NULL); if (!info) return -EIO; @@ -626,7 +644,7 @@ out: */ bool amdgpu_acpi_is_pcie_performance_request_supported(struct amdgpu_device *adev) { - struct amdgpu_atcs *atcs = &adev->atcs; + struct amdgpu_atcs *atcs = &amdgpu_acpi_priv.atcs; if (atcs->functions.pcie_perf_req && atcs->functions.pcie_dev_rdy) return true; @@ -635,6 +653,18 @@ bool amdgpu_acpi_is_pcie_performance_request_supported(struct amdgpu_device *ade } /** + * amdgpu_acpi_is_power_shift_control_supported + * + * Check if the ATCS power shift control method + * is supported. + * returns true if supported, false if not. + */ +bool amdgpu_acpi_is_power_shift_control_supported(void) +{ + return amdgpu_acpi_priv.atcs.functions.power_shift_control; +} + +/** * amdgpu_acpi_pcie_notify_device_ready * * @adev: amdgpu_device pointer @@ -645,19 +675,13 @@ bool amdgpu_acpi_is_pcie_performance_request_supported(struct amdgpu_device *ade */ int amdgpu_acpi_pcie_notify_device_ready(struct amdgpu_device *adev) { - acpi_handle handle; union acpi_object *info; - struct amdgpu_atcs *atcs = &adev->atcs; - - /* Get the device handle */ - handle = ACPI_HANDLE(&adev->pdev->dev); - if (!handle) - return -EINVAL; + struct amdgpu_atcs *atcs = &amdgpu_acpi_priv.atcs; if (!atcs->functions.pcie_dev_rdy) return -EINVAL; - info = amdgpu_atcs_call(handle, ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION, NULL); + info = amdgpu_atcs_call(atcs, ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION, NULL); if (!info) return -EIO; @@ -680,9 +704,8 @@ int amdgpu_acpi_pcie_notify_device_ready(struct amdgpu_device *adev) int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev, u8 perf_req, bool advertise) { - acpi_handle handle; union acpi_object *info; - struct amdgpu_atcs *atcs = &adev->atcs; + struct amdgpu_atcs *atcs = &amdgpu_acpi_priv.atcs; struct atcs_pref_req_input atcs_input; struct atcs_pref_req_output atcs_output; struct acpi_buffer params; @@ -692,17 +715,12 @@ int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev, if (amdgpu_acpi_pcie_notify_device_ready(adev)) return -EINVAL; - /* Get the device handle */ - handle = ACPI_HANDLE(&adev->pdev->dev); - if (!handle) - return -EINVAL; - if (!atcs->functions.pcie_perf_req) return -EINVAL; atcs_input.size = sizeof(struct atcs_pref_req_input); /* client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */ - atcs_input.client_id = adev->pdev->devfn | (adev->pdev->bus->number << 8); + atcs_input.client_id = pci_dev_id(adev->pdev); atcs_input.valid_flags_mask = ATCS_VALID_FLAGS_MASK; atcs_input.flags = ATCS_WAIT_FOR_COMPLETION; if (advertise) @@ -714,7 +732,7 @@ int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev, params.pointer = &atcs_input; while (retry--) { - info = amdgpu_atcs_call(handle, ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST, ¶ms); + info = amdgpu_atcs_call(atcs, ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST, ¶ms); if (!info) return -EIO; @@ -748,6 +766,438 @@ int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev, } /** + * amdgpu_acpi_power_shift_control + * + * @adev: amdgpu_device pointer + * @dev_state: device acpi state + * @drv_state: driver state + * + * Executes the POWER_SHIFT_CONTROL method to + * communicate current dGPU device state and + * driver state to APU/SBIOS. + * returns 0 on success, error on failure. + */ +int amdgpu_acpi_power_shift_control(struct amdgpu_device *adev, + u8 dev_state, bool drv_state) +{ + union acpi_object *info; + struct amdgpu_atcs *atcs = &amdgpu_acpi_priv.atcs; + struct atcs_pwr_shift_input atcs_input; + struct acpi_buffer params; + + if (!amdgpu_acpi_is_power_shift_control_supported()) + return -EINVAL; + + atcs_input.size = sizeof(struct atcs_pwr_shift_input); + /* dGPU id (bit 2-0: func num, 7-3: dev num, 15-8: bus num) */ + atcs_input.dgpu_id = pci_dev_id(adev->pdev); + atcs_input.dev_acpi_state = dev_state; + atcs_input.drv_state = drv_state; + + params.length = sizeof(struct atcs_pwr_shift_input); + params.pointer = &atcs_input; + + info = amdgpu_atcs_call(atcs, ATCS_FUNCTION_POWER_SHIFT_CONTROL, ¶ms); + if (!info) { + DRM_ERROR("ATCS PSC update failed\n"); + return -EIO; + } + + kfree(info); + return 0; +} + +/** + * amdgpu_acpi_smart_shift_update - update dGPU device state to SBIOS + * + * @adev: amdgpu device pointer + * @ss_state: current smart shift event + * + * returns 0 on success, + * otherwise return error number. + */ +int amdgpu_acpi_smart_shift_update(struct amdgpu_device *adev, + enum amdgpu_ss ss_state) +{ + int r; + + if (!amdgpu_device_supports_smart_shift(adev)) + return 0; + + switch (ss_state) { + /* SBIOS trigger “stop”, “enable” and “start” at D0, Driver Operational. + * SBIOS trigger “stop” at D3, Driver Not Operational. + * SBIOS trigger “stop” and “disable” at D0, Driver NOT operational. + */ + case AMDGPU_SS_DRV_LOAD: + r = amdgpu_acpi_power_shift_control(adev, + AMDGPU_ATCS_PSC_DEV_STATE_D0, + AMDGPU_ATCS_PSC_DRV_STATE_OPR); + break; + case AMDGPU_SS_DEV_D0: + r = amdgpu_acpi_power_shift_control(adev, + AMDGPU_ATCS_PSC_DEV_STATE_D0, + AMDGPU_ATCS_PSC_DRV_STATE_OPR); + break; + case AMDGPU_SS_DEV_D3: + r = amdgpu_acpi_power_shift_control(adev, + AMDGPU_ATCS_PSC_DEV_STATE_D3_HOT, + AMDGPU_ATCS_PSC_DRV_STATE_NOT_OPR); + break; + case AMDGPU_SS_DRV_UNLOAD: + r = amdgpu_acpi_power_shift_control(adev, + AMDGPU_ATCS_PSC_DEV_STATE_D0, + AMDGPU_ATCS_PSC_DRV_STATE_NOT_OPR); + break; + default: + return -EINVAL; + } + + return r; +} + +#ifdef CONFIG_ACPI_NUMA +static inline uint64_t amdgpu_acpi_get_numa_size(int nid) +{ + /* This is directly using si_meminfo_node implementation as the + * function is not exported. + */ + int zone_type; + uint64_t managed_pages = 0; + + pg_data_t *pgdat = NODE_DATA(nid); + + for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++) + managed_pages += + zone_managed_pages(&pgdat->node_zones[zone_type]); + return managed_pages * PAGE_SIZE; +} + +static struct amdgpu_numa_info *amdgpu_acpi_get_numa_info(uint32_t pxm) +{ + struct amdgpu_numa_info *numa_info; + int nid; + + numa_info = xa_load(&numa_info_xa, pxm); + + if (!numa_info) { + struct sysinfo info; + + numa_info = kzalloc(sizeof(*numa_info), GFP_KERNEL); + if (!numa_info) + return NULL; + + nid = pxm_to_node(pxm); + numa_info->pxm = pxm; + numa_info->nid = nid; + + if (numa_info->nid == NUMA_NO_NODE) { + si_meminfo(&info); + numa_info->size = info.totalram * info.mem_unit; + } else { + numa_info->size = amdgpu_acpi_get_numa_size(nid); + } + xa_store(&numa_info_xa, numa_info->pxm, numa_info, GFP_KERNEL); + } + + return numa_info; +} +#endif + +/** + * amdgpu_acpi_get_node_id - obtain the NUMA node id for corresponding amdgpu + * acpi device handle + * + * @handle: acpi handle + * @numa_info: amdgpu_numa_info structure holding numa information + * + * Queries the ACPI interface to fetch the corresponding NUMA Node ID for a + * given amdgpu acpi device. + * + * Returns ACPI STATUS OK with Node ID on success or the corresponding failure reason + */ +static acpi_status amdgpu_acpi_get_node_id(acpi_handle handle, + struct amdgpu_numa_info **numa_info) +{ +#ifdef CONFIG_ACPI_NUMA + u64 pxm; + acpi_status status; + + if (!numa_info) + return_ACPI_STATUS(AE_ERROR); + + status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm); + + if (ACPI_FAILURE(status)) + return status; + + *numa_info = amdgpu_acpi_get_numa_info(pxm); + + if (!*numa_info) + return_ACPI_STATUS(AE_ERROR); + + return_ACPI_STATUS(AE_OK); +#else + return_ACPI_STATUS(AE_NOT_EXIST); +#endif +} + +static struct amdgpu_acpi_dev_info *amdgpu_acpi_get_dev(u32 sbdf) +{ + struct amdgpu_acpi_dev_info *acpi_dev; + + if (list_empty(&amdgpu_acpi_dev_list)) + return NULL; + + list_for_each_entry(acpi_dev, &amdgpu_acpi_dev_list, list) + if (acpi_dev->sbdf == sbdf) + return acpi_dev; + + return NULL; +} + +static int amdgpu_acpi_dev_init(struct amdgpu_acpi_dev_info **dev_info, + struct amdgpu_acpi_xcc_info *xcc_info, u32 sbdf) +{ + struct amdgpu_acpi_dev_info *tmp; + union acpi_object *obj; + int ret = -ENOENT; + + *dev_info = NULL; + tmp = kzalloc(sizeof(struct amdgpu_acpi_dev_info), GFP_KERNEL); + if (!tmp) + return -ENOMEM; + + INIT_LIST_HEAD(&tmp->xcc_list); + INIT_LIST_HEAD(&tmp->list); + tmp->sbdf = sbdf; + + obj = acpi_evaluate_dsm_typed(xcc_info->handle, &amd_xcc_dsm_guid, 0, + AMD_XCC_DSM_GET_SUPP_MODE, NULL, + ACPI_TYPE_INTEGER); + + if (!obj) { + acpi_handle_debug(xcc_info->handle, + "_DSM function %d evaluation failed", + AMD_XCC_DSM_GET_SUPP_MODE); + ret = -ENOENT; + goto out; + } + + tmp->supp_xcp_mode = obj->integer.value & 0xFFFF; + ACPI_FREE(obj); + + obj = acpi_evaluate_dsm_typed(xcc_info->handle, &amd_xcc_dsm_guid, 0, + AMD_XCC_DSM_GET_XCP_MODE, NULL, + ACPI_TYPE_INTEGER); + + if (!obj) { + acpi_handle_debug(xcc_info->handle, + "_DSM function %d evaluation failed", + AMD_XCC_DSM_GET_XCP_MODE); + ret = -ENOENT; + goto out; + } + + tmp->xcp_mode = obj->integer.value & 0xFFFF; + tmp->mem_mode = (obj->integer.value >> 32) & 0xFFFF; + ACPI_FREE(obj); + + /* Evaluate DSMs and fill XCC information */ + obj = acpi_evaluate_dsm_typed(xcc_info->handle, &amd_xcc_dsm_guid, 0, + AMD_XCC_DSM_GET_TMR_INFO, NULL, + ACPI_TYPE_PACKAGE); + + if (!obj || obj->package.count < 2) { + acpi_handle_debug(xcc_info->handle, + "_DSM function %d evaluation failed", + AMD_XCC_DSM_GET_TMR_INFO); + ret = -ENOENT; + goto out; + } + + tmp->tmr_base = obj->package.elements[0].integer.value; + tmp->tmr_size = obj->package.elements[1].integer.value; + ACPI_FREE(obj); + + DRM_DEBUG_DRIVER( + "New dev(%x): Supported xcp mode: %x curr xcp_mode : %x mem mode : %x, tmr base: %llx tmr size: %llx ", + tmp->sbdf, tmp->supp_xcp_mode, tmp->xcp_mode, tmp->mem_mode, + tmp->tmr_base, tmp->tmr_size); + list_add_tail(&tmp->list, &amdgpu_acpi_dev_list); + *dev_info = tmp; + + return 0; + +out: + if (obj) + ACPI_FREE(obj); + kfree(tmp); + + return ret; +} + +static int amdgpu_acpi_get_xcc_info(struct amdgpu_acpi_xcc_info *xcc_info, + u32 *sbdf) +{ + union acpi_object *obj; + acpi_status status; + int ret = -ENOENT; + + obj = acpi_evaluate_dsm_typed(xcc_info->handle, &amd_xcc_dsm_guid, 0, + AMD_XCC_DSM_GET_NUM_FUNCS, NULL, + ACPI_TYPE_INTEGER); + + if (!obj || obj->integer.value != AMD_XCC_DSM_NUM_FUNCS) + goto out; + ACPI_FREE(obj); + + /* Evaluate DSMs and fill XCC information */ + obj = acpi_evaluate_dsm_typed(xcc_info->handle, &amd_xcc_dsm_guid, 0, + AMD_XCC_DSM_GET_VF_XCC_MAPPING, NULL, + ACPI_TYPE_INTEGER); + + if (!obj) { + acpi_handle_debug(xcc_info->handle, + "_DSM function %d evaluation failed", + AMD_XCC_DSM_GET_VF_XCC_MAPPING); + ret = -EINVAL; + goto out; + } + + /* PF xcc id [39:32] */ + xcc_info->phy_id = (obj->integer.value >> 32) & 0xFF; + /* xcp node of this xcc [47:40] */ + xcc_info->xcp_node = (obj->integer.value >> 40) & 0xFF; + /* PF domain of this xcc [31:16] */ + *sbdf = (obj->integer.value) & 0xFFFF0000; + /* PF bus/dev/fn of this xcc [63:48] */ + *sbdf |= (obj->integer.value >> 48) & 0xFFFF; + ACPI_FREE(obj); + obj = NULL; + + status = + amdgpu_acpi_get_node_id(xcc_info->handle, &xcc_info->numa_info); + + /* TODO: check if this check is required */ + if (ACPI_SUCCESS(status)) + ret = 0; +out: + if (obj) + ACPI_FREE(obj); + + return ret; +} + +static int amdgpu_acpi_enumerate_xcc(void) +{ + struct amdgpu_acpi_dev_info *dev_info = NULL; + struct amdgpu_acpi_xcc_info *xcc_info; + struct acpi_device *acpi_dev; + char hid[ACPI_ID_LEN]; + int ret, id; + u32 sbdf; + + INIT_LIST_HEAD(&amdgpu_acpi_dev_list); + xa_init(&numa_info_xa); + + for (id = 0; id < AMD_XCC_MAX_HID; id++) { + sprintf(hid, "%s%d", "AMD", AMD_XCC_HID_START + id); + acpi_dev = acpi_dev_get_first_match_dev(hid, NULL, -1); + /* These ACPI objects are expected to be in sequential order. If + * one is not found, no need to check the rest. + */ + if (!acpi_dev) { + DRM_DEBUG_DRIVER("No matching acpi device found for %s", + hid); + break; + } + + xcc_info = kzalloc(sizeof(struct amdgpu_acpi_xcc_info), + GFP_KERNEL); + if (!xcc_info) { + DRM_ERROR("Failed to allocate memory for xcc info\n"); + return -ENOMEM; + } + + INIT_LIST_HEAD(&xcc_info->list); + xcc_info->handle = acpi_device_handle(acpi_dev); + acpi_dev_put(acpi_dev); + + ret = amdgpu_acpi_get_xcc_info(xcc_info, &sbdf); + if (ret) { + kfree(xcc_info); + continue; + } + + dev_info = amdgpu_acpi_get_dev(sbdf); + + if (!dev_info) + ret = amdgpu_acpi_dev_init(&dev_info, xcc_info, sbdf); + + if (ret == -ENOMEM) + return ret; + + if (!dev_info) { + kfree(xcc_info); + continue; + } + + list_add_tail(&xcc_info->list, &dev_info->xcc_list); + } + + return 0; +} + +int amdgpu_acpi_get_tmr_info(struct amdgpu_device *adev, u64 *tmr_offset, + u64 *tmr_size) +{ + struct amdgpu_acpi_dev_info *dev_info; + u32 sbdf; + + if (!tmr_offset || !tmr_size) + return -EINVAL; + + sbdf = (pci_domain_nr(adev->pdev->bus) << 16); + sbdf |= pci_dev_id(adev->pdev); + dev_info = amdgpu_acpi_get_dev(sbdf); + if (!dev_info) + return -ENOENT; + + *tmr_offset = dev_info->tmr_base; + *tmr_size = dev_info->tmr_size; + + return 0; +} + +int amdgpu_acpi_get_mem_info(struct amdgpu_device *adev, int xcc_id, + struct amdgpu_numa_info *numa_info) +{ + struct amdgpu_acpi_dev_info *dev_info; + struct amdgpu_acpi_xcc_info *xcc_info; + u32 sbdf; + + if (!numa_info) + return -EINVAL; + + sbdf = (pci_domain_nr(adev->pdev->bus) << 16); + sbdf |= pci_dev_id(adev->pdev); + dev_info = amdgpu_acpi_get_dev(sbdf); + if (!dev_info) + return -ENOENT; + + list_for_each_entry(xcc_info, &dev_info->xcc_list, list) { + if (xcc_info->phy_id == xcc_id) { + memcpy(numa_info, xcc_info->numa_info, + sizeof(*numa_info)); + return 0; + } + } + + return -ENOENT; +} + +/** * amdgpu_acpi_event - handle notify events * * @nb: notifier block @@ -790,61 +1240,181 @@ static int amdgpu_acpi_event(struct notifier_block *nb, */ int amdgpu_acpi_init(struct amdgpu_device *adev) { - acpi_handle handle, atif_handle; - struct amdgpu_atif *atif; - struct amdgpu_atcs *atcs = &adev->atcs; + struct amdgpu_atif *atif = &amdgpu_acpi_priv.atif; + + if (atif->notifications.brightness_change) { + if (adev->dc_enabled) { +#if defined(CONFIG_DRM_AMD_DC) + struct amdgpu_display_manager *dm = &adev->dm; + + if (dm->backlight_dev[0]) + atif->bd = dm->backlight_dev[0]; +#endif + } else { + struct drm_encoder *tmp; + + /* Find the encoder controlling the brightness */ + list_for_each_entry(tmp, &adev_to_drm(adev)->mode_config.encoder_list, + head) { + struct amdgpu_encoder *enc = to_amdgpu_encoder(tmp); + + if ((enc->devices & (ATOM_DEVICE_LCD_SUPPORT)) && + enc->enc_priv) { + struct amdgpu_encoder_atom_dig *dig = enc->enc_priv; + + if (dig->bl_dev) { + atif->bd = dig->bl_dev; + break; + } + } + } + } + } + adev->acpi_nb.notifier_call = amdgpu_acpi_event; + register_acpi_notifier(&adev->acpi_nb); + + return 0; +} + +void amdgpu_acpi_get_backlight_caps(struct amdgpu_dm_backlight_caps *caps) +{ + struct amdgpu_atif *atif = &amdgpu_acpi_priv.atif; + + memcpy(caps, &atif->backlight_caps, sizeof(*caps)); +} + +/** + * amdgpu_acpi_fini - tear down driver acpi support + * + * @adev: amdgpu_device pointer + * + * Unregisters with the acpi notifier chain (all asics). + */ +void amdgpu_acpi_fini(struct amdgpu_device *adev) +{ + unregister_acpi_notifier(&adev->acpi_nb); +} + +/** + * amdgpu_atif_pci_probe_handle - look up the ATIF handle + * + * @pdev: pci device + * + * Look up the ATIF handles (all asics). + * Returns true if the handle is found, false if not. + */ +static bool amdgpu_atif_pci_probe_handle(struct pci_dev *pdev) +{ + char acpi_method_name[255] = { 0 }; + struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name}; + acpi_handle dhandle, atif_handle; + acpi_status status; int ret; - /* Get the device handle */ - handle = ACPI_HANDLE(&adev->pdev->dev); + dhandle = ACPI_HANDLE(&pdev->dev); + if (!dhandle) + return false; - if (!adev->bios || !handle) - return 0; + status = acpi_get_handle(dhandle, "ATIF", &atif_handle); + if (ACPI_FAILURE(status)) + return false; - /* Call the ATCS method */ - ret = amdgpu_atcs_verify_interface(handle, atcs); + amdgpu_acpi_priv.atif.handle = atif_handle; + acpi_get_name(amdgpu_acpi_priv.atif.handle, ACPI_FULL_PATHNAME, &buffer); + DRM_DEBUG_DRIVER("Found ATIF handle %s\n", acpi_method_name); + ret = amdgpu_atif_verify_interface(&amdgpu_acpi_priv.atif); if (ret) { - DRM_DEBUG_DRIVER("Call to ATCS verify_interface failed: %d\n", ret); + amdgpu_acpi_priv.atif.handle = 0; + return false; } + return true; +} - /* Probe for ATIF, and initialize it if found */ - atif_handle = amdgpu_atif_probe_handle(handle); - if (!atif_handle) - goto out; +/** + * amdgpu_atcs_pci_probe_handle - look up the ATCS handle + * + * @pdev: pci device + * + * Look up the ATCS handles (all asics). + * Returns true if the handle is found, false if not. + */ +static bool amdgpu_atcs_pci_probe_handle(struct pci_dev *pdev) +{ + char acpi_method_name[255] = { 0 }; + struct acpi_buffer buffer = { sizeof(acpi_method_name), acpi_method_name }; + acpi_handle dhandle, atcs_handle; + acpi_status status; + int ret; - atif = kzalloc(sizeof(*atif), GFP_KERNEL); - if (!atif) { - DRM_WARN("Not enough memory to initialize ATIF\n"); - goto out; - } - atif->handle = atif_handle; + dhandle = ACPI_HANDLE(&pdev->dev); + if (!dhandle) + return false; - /* Call the ATIF method */ - ret = amdgpu_atif_verify_interface(atif); + status = acpi_get_handle(dhandle, "ATCS", &atcs_handle); + if (ACPI_FAILURE(status)) + return false; + + amdgpu_acpi_priv.atcs.handle = atcs_handle; + acpi_get_name(amdgpu_acpi_priv.atcs.handle, ACPI_FULL_PATHNAME, &buffer); + DRM_DEBUG_DRIVER("Found ATCS handle %s\n", acpi_method_name); + ret = amdgpu_atcs_verify_interface(&amdgpu_acpi_priv.atcs); if (ret) { - DRM_DEBUG_DRIVER("Call to ATIF verify_interface failed: %d\n", ret); - kfree(atif); - goto out; + amdgpu_acpi_priv.atcs.handle = 0; + return false; } - adev->atif = atif; + return true; +} - if (atif->notifications.brightness_change) { - struct drm_encoder *tmp; - - /* Find the encoder controlling the brightness */ - list_for_each_entry(tmp, &adev->ddev->mode_config.encoder_list, - head) { - struct amdgpu_encoder *enc = to_amdgpu_encoder(tmp); - - if ((enc->devices & (ATOM_DEVICE_LCD_SUPPORT)) && - enc->enc_priv) { - struct amdgpu_encoder_atom_dig *dig = enc->enc_priv; - if (dig->bl_dev) { - atif->encoder_for_bl = enc; - break; - } - } - } + +/** + * amdgpu_acpi_should_gpu_reset + * + * @adev: amdgpu_device_pointer + * + * returns true if should reset GPU, false if not + */ +bool amdgpu_acpi_should_gpu_reset(struct amdgpu_device *adev) +{ + if ((adev->flags & AMD_IS_APU) && + adev->gfx.imu.funcs) /* Not need to do mode2 reset for IMU enabled APUs */ + return false; + + if ((adev->flags & AMD_IS_APU) && + amdgpu_acpi_is_s3_active(adev)) + return false; + + if (amdgpu_sriov_vf(adev)) + return false; + +#if IS_ENABLED(CONFIG_SUSPEND) + return pm_suspend_target_state != PM_SUSPEND_TO_IDLE; +#else + return true; +#endif +} + +/* + * amdgpu_acpi_detect - detect ACPI ATIF/ATCS methods + * + * Check if we have the ATIF/ATCS methods and populate + * the structures in the driver. + */ +void amdgpu_acpi_detect(void) +{ + struct amdgpu_atif *atif = &amdgpu_acpi_priv.atif; + struct amdgpu_atcs *atcs = &amdgpu_acpi_priv.atcs; + struct pci_dev *pdev = NULL; + int ret; + + while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) { + if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) && + (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8)) + continue; + + if (!atif->handle) + amdgpu_atif_pci_probe_handle(pdev); + if (!atcs->handle) + amdgpu_atcs_pci_probe_handle(pdev); } if (atif->functions.sbios_requests && !atif->functions.system_params) { @@ -876,34 +1446,120 @@ int amdgpu_acpi_init(struct amdgpu_device *adev) atif->backlight_caps.caps_valid = false; } -out: - adev->acpi_nb.notifier_call = amdgpu_acpi_event; - register_acpi_notifier(&adev->acpi_nb); - - return ret; + amdgpu_acpi_enumerate_xcc(); } -void amdgpu_acpi_get_backlight_caps(struct amdgpu_device *adev, - struct amdgpu_dm_backlight_caps *caps) +void amdgpu_acpi_release(void) { - if (!adev->atif) { - caps->caps_valid = false; + struct amdgpu_acpi_dev_info *dev_info, *dev_tmp; + struct amdgpu_acpi_xcc_info *xcc_info, *xcc_tmp; + struct amdgpu_numa_info *numa_info; + unsigned long index; + + xa_for_each(&numa_info_xa, index, numa_info) { + kfree(numa_info); + xa_erase(&numa_info_xa, index); + } + + if (list_empty(&amdgpu_acpi_dev_list)) return; + + list_for_each_entry_safe(dev_info, dev_tmp, &amdgpu_acpi_dev_list, + list) { + list_for_each_entry_safe(xcc_info, xcc_tmp, &dev_info->xcc_list, + list) { + list_del(&xcc_info->list); + kfree(xcc_info); + } + + list_del(&dev_info->list); + kfree(dev_info); } - caps->caps_valid = adev->atif->backlight_caps.caps_valid; - caps->min_input_signal = adev->atif->backlight_caps.min_input_signal; - caps->max_input_signal = adev->atif->backlight_caps.max_input_signal; } +#if IS_ENABLED(CONFIG_SUSPEND) /** - * amdgpu_acpi_fini - tear down driver acpi support + * amdgpu_acpi_is_s3_active * - * @adev: amdgpu_device pointer + * @adev: amdgpu_device_pointer * - * Unregisters with the acpi notifier chain (all asics). + * returns true if supported, false if not. */ -void amdgpu_acpi_fini(struct amdgpu_device *adev) +bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev) { - unregister_acpi_notifier(&adev->acpi_nb); - kfree(adev->atif); + return !(adev->flags & AMD_IS_APU) || + (pm_suspend_target_state == PM_SUSPEND_MEM); +} + +/** + * amdgpu_acpi_is_s0ix_active + * + * @adev: amdgpu_device_pointer + * + * returns true if supported, false if not. + */ +bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) +{ + if (!(adev->flags & AMD_IS_APU) || + (pm_suspend_target_state != PM_SUSPEND_TO_IDLE)) + return false; + + if (adev->asic_type < CHIP_RAVEN) + return false; + + if (!(adev->pm.pp_feature & PP_GFXOFF_MASK)) + return false; + + /* + * If ACPI_FADT_LOW_POWER_S0 is not set in the FADT, it is generally + * risky to do any special firmware-related preparations for entering + * S0ix even though the system is suspending to idle, so return false + * in that case. + */ + if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)) { + dev_err_once(adev->dev, + "Power consumption will be higher as BIOS has not been configured for suspend-to-idle.\n" + "To use suspend-to-idle change the sleep mode in BIOS setup.\n"); + return false; + } + +#if !IS_ENABLED(CONFIG_AMD_PMC) + dev_err_once(adev->dev, + "Power consumption will be higher as the kernel has not been compiled with CONFIG_AMD_PMC.\n"); + return false; +#else + return true; +#endif /* CONFIG_AMD_PMC */ +} +#endif /* CONFIG_SUSPEND */ + +#if IS_ENABLED(CONFIG_DRM_AMD_ISP) +static const struct acpi_device_id isp_sensor_ids[] = { + { "OMNI5C10" }, + { } +}; + +static int isp_match_acpi_device_ids(struct device *dev, const void *data) +{ + return acpi_match_device(data, dev) ? 1 : 0; +} + +int amdgpu_acpi_get_isp4_dev(struct acpi_device **dev) +{ + struct device *pdev __free(put_device) = NULL; + struct acpi_device *acpi_pdev; + + pdev = bus_find_device(&platform_bus_type, NULL, isp_sensor_ids, + isp_match_acpi_device_ids); + if (!pdev) + return -EINVAL; + + acpi_pdev = ACPI_COMPANION(pdev); + if (!acpi_pdev) + return -ENODEV; + + *dev = acpi_pdev; + + return 0; } +#endif /* CONFIG_DRM_AMD_ISP */ |