diff options
| -rw-r--r-- | drivers/net/ipa/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_data-sc7180.c | 102 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_data-sdm845.c | 165 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_data.h | 62 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_main.c | 148 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_reg.h | 46 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_resource.c | 182 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_resource.h | 27 |
8 files changed, 391 insertions, 343 deletions
diff --git a/drivers/net/ipa/Makefile b/drivers/net/ipa/Makefile index afe5df1e6eee..14a7d8429baa 100644 --- a/drivers/net/ipa/Makefile +++ b/drivers/net/ipa/Makefile @@ -7,6 +7,6 @@ ipa-y := ipa_main.o ipa_clock.o ipa_reg.o ipa_mem.o \ ipa_table.o ipa_interrupt.o gsi.o gsi_trans.o \ ipa_gsi.o ipa_smp2p.o ipa_uc.o \ ipa_endpoint.o ipa_cmd.o ipa_modem.o \ - ipa_qmi.o ipa_qmi_msg.o + ipa_resource.o ipa_qmi.o ipa_qmi_msg.o ipa-y += ipa_data-sdm845.o ipa_data-sc7180.o diff --git a/drivers/net/ipa/ipa_data-sc7180.c b/drivers/net/ipa/ipa_data-sc7180.c index 621ad15c9e67..c9b6a6aaadac 100644 --- a/drivers/net/ipa/ipa_data-sc7180.c +++ b/drivers/net/ipa/ipa_data-sc7180.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2019-2020 Linaro Ltd. */ +/* Copyright (C) 2019-2021 Linaro Ltd. */ #include <linux/log2.h> @@ -9,6 +9,31 @@ #include "ipa_endpoint.h" #include "ipa_mem.h" +/** enum ipa_resource_type - IPA resource types */ +enum ipa_resource_type { + /* Source resource types; first must have value 0 */ + IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS = 0, + IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS, + IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF, + IPA_RESOURCE_TYPE_SRC_HPS_DMARS, + IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES, + + /* Destination resource types; first must have value 0 */ + IPA_RESOURCE_TYPE_DST_DATA_SECTORS = 0, + IPA_RESOURCE_TYPE_DST_DPS_DMARS, +}; + +/* Resource groups used for the SC7180 SoC */ +enum ipa_rsrc_group_id { + /* Source resource group identifiers */ + IPA_RSRC_GROUP_SRC_UL_DL = 0, + IPA_RSRC_GROUP_SRC_COUNT, /* Last in set; not a source group */ + + /* Destination resource group identifiers */ + IPA_RSRC_GROUP_DST_UL_DL_DPL = 0, + IPA_RSRC_GROUP_DST_COUNT, /* Last; not a destination group */ +}; + /* QSB configuration for the SC7180 SoC. */ static const struct ipa_qsb_data ipa_qsb_data[] = { [IPA_QSB_MASTER_DDR] = { @@ -32,7 +57,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = 0, + .resource_group = IPA_RSRC_GROUP_SRC_UL_DL, .dma_mode = true, .dma_endpoint = IPA_ENDPOINT_AP_LAN_RX, .tx = { @@ -53,7 +78,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = 0, + .resource_group = IPA_RSRC_GROUP_DST_UL_DL_DPL, .aggregation = true, .status_enable = true, .rx = { @@ -75,7 +100,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { .endpoint = { .filter_support = true, .config = { - .resource_group = 0, + .resource_group = IPA_RSRC_GROUP_SRC_UL_DL, .checksum = true, .qmap = true, .status_enable = true, @@ -100,7 +125,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = 0, + .resource_group = IPA_RSRC_GROUP_DST_UL_DL_DPL, .checksum = true, .qmap = true, .aggregation = true, @@ -139,66 +164,53 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, }; -/* For the SC7180, resource groups are allocated this way: - * group 0: UL_DL - */ -static const struct ipa_resource_src ipa_resource_src[] = { - { - .type = IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS, - .limits[0] = { - .min = 3, - .max = 63, +/* Source resource configuration data for the SC7180 SoC */ +static const struct ipa_resource ipa_resource_src[] = { + [IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS] = { + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 3, .max = 63, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS, - .limits[0] = { - .min = 3, - .max = 3, + [IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS] = { + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 3, .max = 3, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF, - .limits[0] = { - .min = 10, - .max = 10, + [IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF] = { + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 10, .max = 10, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_HPS_DMARS, - .limits[0] = { - .min = 1, - .max = 1, + [IPA_RESOURCE_TYPE_SRC_HPS_DMARS] = { + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 1, .max = 1, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES, - .limits[0] = { - .min = 5, - .max = 5, + [IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES] = { + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 5, .max = 5, }, }, }; -static const struct ipa_resource_dst ipa_resource_dst[] = { - { - .type = IPA_RESOURCE_TYPE_DST_DATA_SECTORS, - .limits[0] = { - .min = 3, - .max = 3, +/* Destination resource configuration data for the SC7180 SoC */ +static const struct ipa_resource ipa_resource_dst[] = { + [IPA_RESOURCE_TYPE_DST_DATA_SECTORS] = { + .limits[IPA_RSRC_GROUP_DST_UL_DL_DPL] = { + .min = 3, .max = 3, }, }, - { - .type = IPA_RESOURCE_TYPE_DST_DPS_DMARS, - .limits[0] = { - .min = 1, - .max = 63, + [IPA_RESOURCE_TYPE_DST_DPS_DMARS] = { + .limits[IPA_RSRC_GROUP_DST_UL_DL_DPL] = { + .min = 1, .max = 63, }, }, }; /* Resource configuration for the SC7180 SoC. */ static const struct ipa_resource_data ipa_resource_data = { + .rsrc_group_src_count = IPA_RSRC_GROUP_SRC_COUNT, + .rsrc_group_dst_count = IPA_RSRC_GROUP_DST_COUNT, .resource_src_count = ARRAY_SIZE(ipa_resource_src), .resource_src = ipa_resource_src, .resource_dst_count = ARRAY_SIZE(ipa_resource_dst), diff --git a/drivers/net/ipa/ipa_data-sdm845.c b/drivers/net/ipa/ipa_data-sdm845.c index 6b5173f47444..e14e3fb1d970 100644 --- a/drivers/net/ipa/ipa_data-sdm845.c +++ b/drivers/net/ipa/ipa_data-sdm845.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. - * Copyright (C) 2019-2020 Linaro Ltd. + * Copyright (C) 2019-2021 Linaro Ltd. */ #include <linux/log2.h> @@ -11,6 +11,36 @@ #include "ipa_endpoint.h" #include "ipa_mem.h" +/** enum ipa_resource_type - IPA resource types */ +enum ipa_resource_type { + /* Source resource types; first must have value 0 */ + IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS = 0, + IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS, + IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF, + IPA_RESOURCE_TYPE_SRC_HPS_DMARS, + IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES, + + /* Destination resource types; first must have value 0 */ + IPA_RESOURCE_TYPE_DST_DATA_SECTORS = 0, + IPA_RESOURCE_TYPE_DST_DPS_DMARS, +}; + +/* Resource groups used for the SDM845 SoC */ +enum ipa_rsrc_group_id { + /* Source resource group identifiers */ + IPA_RSRC_GROUP_SRC_LWA_DL = 0, + IPA_RSRC_GROUP_SRC_UL_DL, + IPA_RSRC_GROUP_SRC_MHI_DMA, + IPA_RSRC_GROUP_SRC_UC_RX_Q, + IPA_RSRC_GROUP_SRC_COUNT, /* Last in set; not a source group */ + + /* Destination resource group identifiers */ + IPA_RSRC_GROUP_DST_LWA_DL = 0, + IPA_RSRC_GROUP_DST_UL_DL_DPL, + IPA_RSRC_GROUP_DST_UNUSED_2, + IPA_RSRC_GROUP_DST_COUNT, /* Last; not a destination group */ +}; + /* QSB configuration for the SDM845 SoC. */ static const struct ipa_qsb_data ipa_qsb_data[] = { [IPA_QSB_MASTER_DDR] = { @@ -37,7 +67,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = 1, + .resource_group = IPA_RSRC_GROUP_SRC_UL_DL, .dma_mode = true, .dma_endpoint = IPA_ENDPOINT_AP_LAN_RX, .tx = { @@ -58,7 +88,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = 1, + .resource_group = IPA_RSRC_GROUP_DST_UL_DL_DPL, .aggregation = true, .status_enable = true, .rx = { @@ -80,7 +110,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { .endpoint = { .filter_support = true, .config = { - .resource_group = 1, + .resource_group = IPA_RSRC_GROUP_SRC_UL_DL, .checksum = true, .qmap = true, .status_enable = true, @@ -104,7 +134,7 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, .endpoint = { .config = { - .resource_group = 1, + .resource_group = IPA_RSRC_GROUP_DST_UL_DL_DPL, .checksum = true, .qmap = true, .aggregation = true, @@ -152,95 +182,98 @@ static const struct ipa_gsi_endpoint_data ipa_gsi_endpoint_data[] = { }, }; -/* For the SDM845, resource groups are allocated this way: - * group 0: LWA_DL - * group 1: UL_DL - */ -static const struct ipa_resource_src ipa_resource_src[] = { - { - .type = IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS, - .limits[0] = { - .min = 1, - .max = 255, +/* Source resource configuration data for the SDM845 SoC */ +static const struct ipa_resource ipa_resource_src[] = { + [IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS] = { + .limits[IPA_RSRC_GROUP_SRC_LWA_DL] = { + .min = 1, .max = 255, }, - .limits[1] = { - .min = 1, - .max = 255, + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 1, .max = 255, + }, + .limits[IPA_RSRC_GROUP_SRC_UC_RX_Q] = { + .min = 1, .max = 63, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS, - .limits[0] = { - .min = 10, - .max = 10, + [IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS] = { + .limits[IPA_RSRC_GROUP_SRC_LWA_DL] = { + .min = 10, .max = 10, }, - .limits[1] = { - .min = 10, - .max = 10, + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 10, .max = 10, + }, + .limits[IPA_RSRC_GROUP_SRC_UC_RX_Q] = { + .min = 8, .max = 8, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF, - .limits[0] = { - .min = 12, - .max = 12, + [IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF] = { + .limits[IPA_RSRC_GROUP_SRC_LWA_DL] = { + .min = 12, .max = 12, }, - .limits[1] = { - .min = 14, - .max = 14, + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 14, .max = 14, + }, + .limits[IPA_RSRC_GROUP_SRC_UC_RX_Q] = { + .min = 8, .max = 8, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_HPS_DMARS, - .limits[0] = { - .min = 0, - .max = 63, + [IPA_RESOURCE_TYPE_SRC_HPS_DMARS] = { + .limits[IPA_RSRC_GROUP_SRC_LWA_DL] = { + .min = 0, .max = 63, }, - .limits[1] = { - .min = 0, - .max = 63, + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 0, .max = 63, + }, + .limits[IPA_RSRC_GROUP_SRC_MHI_DMA] = { + .min = 0, .max = 63, + }, + .limits[IPA_RSRC_GROUP_SRC_UC_RX_Q] = { + .min = 0, .max = 63, }, }, - { - .type = IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES, - .limits[0] = { - .min = 14, - .max = 14, + [IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES] = { + .limits[IPA_RSRC_GROUP_SRC_LWA_DL] = { + .min = 14, .max = 14, }, - .limits[1] = { - .min = 20, - .max = 20, + .limits[IPA_RSRC_GROUP_SRC_UL_DL] = { + .min = 20, .max = 20, + }, + .limits[IPA_RSRC_GROUP_SRC_UC_RX_Q] = { + .min = 14, .max = 14, }, }, }; -static const struct ipa_resource_dst ipa_resource_dst[] = { - { - .type = IPA_RESOURCE_TYPE_DST_DATA_SECTORS, - .limits[0] = { - .min = 4, - .max = 4, +/* Destination resource configuration data for the SDM845 SoC */ +static const struct ipa_resource ipa_resource_dst[] = { + [IPA_RESOURCE_TYPE_DST_DATA_SECTORS] = { + .limits[IPA_RSRC_GROUP_DST_LWA_DL] = { + .min = 4, .max = 4, }, .limits[1] = { - .min = 4, - .max = 4, + .min = 4, .max = 4, }, + .limits[IPA_RSRC_GROUP_DST_UNUSED_2] = { + .min = 3, .max = 3, + } }, - { - .type = IPA_RESOURCE_TYPE_DST_DPS_DMARS, - .limits[0] = { - .min = 2, - .max = 63, + [IPA_RESOURCE_TYPE_DST_DPS_DMARS] = { + .limits[IPA_RSRC_GROUP_DST_LWA_DL] = { + .min = 2, .max = 63, }, - .limits[1] = { - .min = 1, - .max = 63, + .limits[IPA_RSRC_GROUP_DST_UL_DL_DPL] = { + .min = 1, .max = 63, }, + .limits[IPA_RSRC_GROUP_DST_UNUSED_2] = { + .min = 1, .max = 2, + } }, }; /* Resource configuration for the SDM845 SoC. */ static const struct ipa_resource_data ipa_resource_data = { + .rsrc_group_src_count = IPA_RSRC_GROUP_SRC_COUNT, + .rsrc_group_dst_count = IPA_RSRC_GROUP_DST_COUNT, .resource_src_count = ARRAY_SIZE(ipa_resource_src), .resource_src = ipa_resource_src, .resource_dst_count = ARRAY_SIZE(ipa_resource_dst), diff --git a/drivers/net/ipa/ipa_data.h b/drivers/net/ipa/ipa_data.h index 7816583fc14a..ea8f99286228 100644 --- a/drivers/net/ipa/ipa_data.h +++ b/drivers/net/ipa/ipa_data.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. - * Copyright (C) 2019-2020 Linaro Ltd. + * Copyright (C) 2019-2021 Linaro Ltd. */ #ifndef _IPA_DATA_H_ #define _IPA_DATA_H_ @@ -46,9 +46,8 @@ * the IPA endpoint. */ -/* The maximum value returned by ipa_resource_group_{src,dst}_count() */ -#define IPA_RESOURCE_GROUP_SRC_MAX 5 -#define IPA_RESOURCE_GROUP_DST_MAX 5 +/* The maximum possible number of source or destination resource groups */ +#define IPA_RESOURCE_GROUP_MAX 8 /** enum ipa_qsb_master_id - array index for IPA QSB configuration data */ enum ipa_qsb_master_id { @@ -177,12 +176,12 @@ struct ipa_endpoint_data { /** * struct ipa_gsi_endpoint_data - GSI channel/IPA endpoint data - * ee: GSI execution environment ID - * channel_id: GSI channel ID - * endpoint_id: IPA endpoint ID - * toward_ipa: direction of data transfer - * gsi: GSI channel configuration data (see above) - * ipa: IPA endpoint configuration data (see above) + * @ee_id: GSI execution environment ID + * @channel_id: GSI channel ID + * @endpoint_id: IPA endpoint ID + * @toward_ipa: direction of data transfer + * @channel: GSI channel configuration data (see above) + * @endpoint: IPA endpoint configuration data (see above) */ struct ipa_gsi_endpoint_data { u8 ee_id; /* enum gsi_ee_id */ @@ -194,21 +193,6 @@ struct ipa_gsi_endpoint_data { struct ipa_endpoint_data endpoint; }; -/** enum ipa_resource_type_src - source resource types */ -enum ipa_resource_type_src { - IPA_RESOURCE_TYPE_SRC_PKT_CONTEXTS, - IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_LISTS, - IPA_RESOURCE_TYPE_SRC_DESCRIPTOR_BUFF, - IPA_RESOURCE_TYPE_SRC_HPS_DMARS, - IPA_RESOURCE_TYPE_SRC_ACK_ENTRIES, -}; - -/** enum ipa_resource_type_dst - destination resource types */ -enum ipa_resource_type_dst { - IPA_RESOURCE_TYPE_DST_DATA_SECTORS, - IPA_RESOURCE_TYPE_DST_DPS_DMARS, -}; - /** * struct ipa_resource_limits - minimum and maximum resource counts * @min: minimum number of resources of a given type @@ -220,27 +204,17 @@ struct ipa_resource_limits { }; /** - * struct ipa_resource_src - source endpoint group resource usage - * @type: source group resource type - * @limits: array of limits to use for each resource group - */ -struct ipa_resource_src { - enum ipa_resource_type_src type; - struct ipa_resource_limits limits[IPA_RESOURCE_GROUP_SRC_MAX]; -}; - -/** - * struct ipa_resource_dst - destination endpoint group resource usage - * @type: destination group resource type - * @limits: array of limits to use for each resource group + * struct ipa_resource - resource group source or destination resource usage + * @limits: array of resource limits, indexed by group */ -struct ipa_resource_dst { - enum ipa_resource_type_dst type; - struct ipa_resource_limits limits[IPA_RESOURCE_GROUP_DST_MAX]; +struct ipa_resource { + struct ipa_resource_limits limits[IPA_RESOURCE_GROUP_MAX]; }; /** * struct ipa_resource_data - IPA resource configuration data + * @rsrc_group_src_count: number of source resource groups supported + * @rsrc_group_dst_count: number of destination resource groups supported * @resource_src_count: number of entries in the resource_src array * @resource_src: source endpoint group resources * @resource_dst_count: number of entries in the resource_dst array @@ -252,10 +226,12 @@ struct ipa_resource_dst { * programming it at initialization time, so we specify it here. */ struct ipa_resource_data { + u32 rsrc_group_src_count; + u32 rsrc_group_dst_count; u32 resource_src_count; - const struct ipa_resource_src *resource_src; + const struct ipa_resource *resource_src; u32 resource_dst_count; - const struct ipa_resource_dst *resource_dst; + const struct ipa_resource *resource_dst; }; /** diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c index f071e90de540..e18029152d78 100644 --- a/drivers/net/ipa/ipa_main.c +++ b/drivers/net/ipa/ipa_main.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. - * Copyright (C) 2018-2020 Linaro Ltd. + * Copyright (C) 2018-2021 Linaro Ltd. */ #include <linux/types.h> @@ -22,6 +22,7 @@ #include "ipa_clock.h" #include "ipa_data.h" #include "ipa_endpoint.h" +#include "ipa_resource.h" #include "ipa_cmd.h" #include "ipa_reg.h" #include "ipa_mem.h" @@ -452,151 +453,6 @@ static void ipa_hardware_deconfig(struct ipa *ipa) ipa_hardware_dcd_deconfig(ipa); } -#ifdef IPA_VALIDATION - -static bool ipa_resource_limits_valid(struct ipa *ipa, - const struct ipa_resource_data *data) -{ - u32 group_count; - u32 i; - u32 j; - - /* We program at most 6 source or destination resource group limits */ - BUILD_BUG_ON(IPA_RESOURCE_GROUP_SRC_MAX > 6); - - group_count = ipa_resource_group_src_count(ipa->version); - if (!group_count || group_count > IPA_RESOURCE_GROUP_SRC_MAX) - return false; - - /* Return an error if a non-zero resource limit is specified - * for a resource group not supported by hardware. - */ - for (i = 0; i < data->resource_src_count; i++) { - const struct ipa_resource_src *resource; - - resource = &data->resource_src[i]; - for (j = group_count; j < IPA_RESOURCE_GROUP_SRC_MAX; j++) - if (resource->limits[j].min || resource->limits[j].max) - return false; - } - - group_count = ipa_resource_group_dst_count(ipa->version); - if (!group_count || group_count > IPA_RESOURCE_GROUP_DST_MAX) - return false; - - for (i = 0; i < data->resource_dst_count; i++) { - const struct ipa_resource_dst *resource; - - resource = &data->resource_dst[i]; - for (j = group_count; j < IPA_RESOURCE_GROUP_DST_MAX; j++) - if (resource->limits[j].min || resource->limits[j].max) - return false; - } - - return true; -} - -#else /* !IPA_VALIDATION */ - -static bool ipa_resource_limits_valid(struct ipa *ipa, - const struct ipa_resource_data *data) -{ - return true; -} - -#endif /* !IPA_VALIDATION */ - -static void -ipa_resource_config_common(struct ipa *ipa, u32 offset, - const struct ipa_resource_limits *xlimits, - const struct ipa_resource_limits *ylimits) -{ - u32 val; - - val = u32_encode_bits(xlimits->min, X_MIN_LIM_FMASK); - val |= u32_encode_bits(xlimits->max, X_MAX_LIM_FMASK); - if (ylimits) { - val |= u32_encode_bits(ylimits->min, Y_MIN_LIM_FMASK); - val |= u32_encode_bits(ylimits->max, Y_MAX_LIM_FMASK); - } - - iowrite32(val, ipa->reg_virt + offset); -} - -static void ipa_resource_config_src(struct ipa *ipa, - const struct ipa_resource_src *resource) -{ - u32 group_count = ipa_resource_group_src_count(ipa->version); - const struct ipa_resource_limits *ylimits; - u32 offset; - - offset = IPA_REG_SRC_RSRC_GRP_01_RSRC_TYPE_N_OFFSET(resource->type); - ylimits = group_count == 1 ? NULL : &resource->limits[1]; - ipa_resource_config_common(ipa, offset, &resource->limits[0], ylimits); - - if (group_count < 2) - return; - - offset = IPA_REG_SRC_RSRC_GRP_23_RSRC_TYPE_N_OFFSET(resource->type); - ylimits = group_count == 3 ? NULL : &resource->limits[3]; - ipa_resource_config_common(ipa, offset, &resource->limits[2], ylimits); - - if (group_count < 4) - return; - - offset = IPA_REG_SRC_RSRC_GRP_45_RSRC_TYPE_N_OFFSET(resource->type); - ylimits = group_count == 5 ? NULL : &resource->limits[5]; - ipa_resource_config_common(ipa, offset, &resource->limits[4], ylimits); -} - -static void ipa_resource_config_dst(struct ipa *ipa, - const struct ipa_resource_dst *resource) -{ - u32 group_count = ipa_resource_group_dst_count(ipa->version); - const struct ipa_resource_limits *ylimits; - u32 offset; - - offset = IPA_REG_DST_RSRC_GRP_01_RSRC_TYPE_N_OFFSET(resource->type); - ylimits = group_count == 1 ? NULL : &resource->limits[1]; - ipa_resource_config_common(ipa, offset, &resource->limits[0], ylimits); - - if (group_count < 2) - return; - - offset = IPA_REG_DST_RSRC_GRP_23_RSRC_TYPE_N_OFFSET(resource->type); - ylimits = group_count == 3 ? NULL : &resource->limits[3]; - ipa_resource_config_common(ipa, offset, &resource->limits[2], ylimits); - - if (group_count < 4) - return; - - offset = IPA_REG_DST_RSRC_GRP_45_RSRC_TYPE_N_OFFSET(resource->type); - ylimits = group_count == 5 ? NULL : &resource->limits[5]; - ipa_resource_config_common(ipa, offset, &resource->limits[4], ylimits); -} - -static int -ipa_resource_config(struct ipa *ipa, const struct ipa_resource_data *data) -{ - u32 i; - - if (!ipa_resource_limits_valid(ipa, data)) - return -EINVAL; - - for (i = 0; i < data->resource_src_count; i++) - ipa_resource_config_src(ipa, &data->resource_src[i]); - - for (i = 0; i < data->resource_dst_count; i++) - ipa_resource_config_dst(ipa, &data->resource_dst[i]); - - return 0; -} - -static void ipa_resource_deconfig(struct ipa *ipa) -{ - /* Nothing to do */ -} - /** * ipa_config() - Configure IPA hardware * @ipa: IPA pointer diff --git a/drivers/net/ipa/ipa_reg.h b/drivers/net/ipa/ipa_reg.h index 8820e08d2535..de2a944bad86 100644 --- a/drivers/net/ipa/ipa_reg.h +++ b/drivers/net/ipa/ipa_reg.h @@ -346,48 +346,6 @@ enum ipa_pulse_gran { IPA_GRAN_655350_US = 0x7, }; -/* # IPA source resource groups available based on version */ -static inline u32 ipa_resource_group_src_count(enum ipa_version version) -{ - switch (version) { - case IPA_VERSION_3_5_1: - case IPA_VERSION_4_0: - case IPA_VERSION_4_1: - return 4; - - case IPA_VERSION_4_2: - return 1; - - case IPA_VERSION_4_5: - return 5; - - default: - return 0; - } -} - -/* # IPA destination resource groups available based on version */ -static inline u32 ipa_resource_group_dst_count(enum ipa_version version) -{ - switch (version) { - case IPA_VERSION_3_5_1: - return 3; - - case IPA_VERSION_4_0: - case IPA_VERSION_4_1: - return 4; - - case IPA_VERSION_4_2: - return 1; - - case IPA_VERSION_4_5: - return 5; - - default: - return 0; - } -} - /* Not all of the following are present (depends on IPA version) */ #define IPA_REG_SRC_RSRC_GRP_01_RSRC_TYPE_N_OFFSET(rt) \ (0x00000400 + 0x0020 * (rt)) @@ -395,12 +353,16 @@ static inline u32 ipa_resource_group_dst_count(enum ipa_version version) (0x00000404 + 0x0020 * (rt)) #define IPA_REG_SRC_RSRC_GRP_45_RSRC_TYPE_N_OFFSET(rt) \ (0x00000408 + 0x0020 * (rt)) +#define IPA_REG_SRC_RSRC_GRP_67_RSRC_TYPE_N_OFFSET(rt) \ + (0x0000040c + 0x0020 * (rt)) #define IPA_REG_DST_RSRC_GRP_01_RSRC_TYPE_N_OFFSET(rt) \ (0x00000500 + 0x0020 * (rt)) #define IPA_REG_DST_RSRC_GRP_23_RSRC_TYPE_N_OFFSET(rt) \ (0x00000504 + 0x0020 * (rt)) #define IPA_REG_DST_RSRC_GRP_45_RSRC_TYPE_N_OFFSET(rt) \ (0x00000508 + 0x0020 * (rt)) +#define IPA_REG_DST_RSRC_GRP_67_RSRC_TYPE_N_OFFSET(rt) \ + (0x0000050c + 0x0020 * (rt)) /* The next four fields are used for all resource group registers */ #define X_MIN_LIM_FMASK GENMASK(5, 0) #define X_MAX_LIM_FMASK GENMASK(13, 8) diff --git a/drivers/net/ipa/ipa_resource.c b/drivers/net/ipa/ipa_resource.c new file mode 100644 index 000000000000..85f922d6f222 --- /dev/null +++ b/drivers/net/ipa/ipa_resource.c @@ -0,0 +1,182 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. + * Copyright (C) 2018-2021 Linaro Ltd. + */ + +#include <linux/types.h> +#include <linux/kernel.h> + +#include "ipa.h" +#include "ipa_data.h" +#include "ipa_reg.h" +#include "ipa_resource.h" + +/** + * DOC: IPA Resources + * + * The IPA manages a set of resources internally for various purposes. + * A given IPA version has a fixed number of resource types, and a fixed + * total number of resources of each type. "Source" resource types + * are separate from "destination" resource types. + * + * Each version of IPA also has some number of resource groups. Each + * endpoint is assigned to a resource group, and all endpoints in the + * same group share pools of each type of resource. A subset of the + * total resources of each type is assigned for use by each group. + */ + +static bool ipa_resource_limits_valid(struct ipa *ipa, + const struct ipa_resource_data *data) +{ +#ifdef IPA_VALIDATION + u32 group_count; + u32 i; + u32 j; + + /* We program at most 8 source or destination resource group limits */ + BUILD_BUG_ON(IPA_RESOURCE_GROUP_MAX > 8); + + group_count = data->rsrc_group_src_count; + if (!group_count || group_count > IPA_RESOURCE_GROUP_MAX) + return false; + + /* Return an error if a non-zero resource limit is specified + * for a resource group not supported by hardware. + */ + for (i = 0; i < data->resource_src_count; i++) { + const struct ipa_resource *resource; + + resource = &data->resource_src[i]; + for (j = group_count; j < IPA_RESOURCE_GROUP_MAX; j++) + if (resource->limits[j].min || resource->limits[j].max) + return false; + } + + group_count = data->rsrc_group_src_count; + if (!group_count || group_count > IPA_RESOURCE_GROUP_MAX) + return false; + + for (i = 0; i < data->resource_dst_count; i++) { + const struct ipa_resource *resource; + + resource = &data->resource_dst[i]; + for (j = group_count; j < IPA_RESOURCE_GROUP_MAX; j++) + if (resource->limits[j].min || resource->limits[j].max) + return false; + } +#endif /* !IPA_VALIDATION */ + return true; +} + +static void +ipa_resource_config_common(struct ipa *ipa, u32 offset, + const struct ipa_resource_limits *xlimits, + const struct ipa_resource_limits *ylimits) +{ + u32 val; + + val = u32_encode_bits(xlimits->min, X_MIN_LIM_FMASK); + val |= u32_encode_bits(xlimits->max, X_MAX_LIM_FMASK); + if (ylimits) { + val |= u32_encode_bits(ylimits->min, Y_MIN_LIM_FMASK); + val |= u32_encode_bits(ylimits->max, Y_MAX_LIM_FMASK); + } + + iowrite32(val, ipa->reg_virt + offset); +} + +static void ipa_resource_config_src(struct ipa *ipa, u32 resource_type, + const struct ipa_resource_data *data) +{ + u32 group_count = data->rsrc_group_src_count; + const struct ipa_resource_limits *ylimits; + const struct ipa_resource *resource; + u32 offset; + + resource = &data->resource_src[resource_type]; + + offset = IPA_REG_SRC_RSRC_GRP_01_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 1 ? NULL : &resource->limits[1]; + ipa_resource_config_common(ipa, offset, &resource->limits[0], ylimits); + + if (group_count < 3) + return; + + offset = IPA_REG_SRC_RSRC_GRP_23_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 3 ? NULL : &resource->limits[3]; + ipa_resource_config_common(ipa, offset, &resource->limits[2], ylimits); + + if (group_count < 5) + return; + + offset = IPA_REG_SRC_RSRC_GRP_45_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 5 ? NULL : &resource->limits[5]; + ipa_resource_config_common(ipa, offset, &resource->limits[4], ylimits); + + if (group_count < 7) + return; + + offset = IPA_REG_SRC_RSRC_GRP_67_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 7 ? NULL : &resource->limits[7]; + ipa_resource_config_common(ipa, offset, &resource->limits[6], ylimits); +} + +static void ipa_resource_config_dst(struct ipa *ipa, u32 resource_type, + const struct ipa_resource_data *data) +{ + u32 group_count = data->rsrc_group_dst_count; + const struct ipa_resource_limits *ylimits; + const struct ipa_resource *resource; + u32 offset; + + resource = &data->resource_dst[resource_type]; + + offset = IPA_REG_DST_RSRC_GRP_01_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 1 ? NULL : &resource->limits[1]; + ipa_resource_config_common(ipa, offset, &resource->limits[0], ylimits); + + if (group_count < 3) + return; + + offset = IPA_REG_DST_RSRC_GRP_23_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 3 ? NULL : &resource->limits[3]; + ipa_resource_config_common(ipa, offset, &resource->limits[2], ylimits); + + if (group_count < 5) + return; + + offset = IPA_REG_DST_RSRC_GRP_45_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 5 ? NULL : &resource->limits[5]; + ipa_resource_config_common(ipa, offset, &resource->limits[4], ylimits); + + if (group_count < 7) + return; + + offset = IPA_REG_DST_RSRC_GRP_67_RSRC_TYPE_N_OFFSET(resource_type); + ylimits = group_count == 7 ? NULL : &resource->limits[7]; + ipa_resource_config_common(ipa, offset, &resource->limits[6], ylimits); +} + +/* Configure resources */ +int ipa_resource_config(struct ipa *ipa, const struct ipa_resource_data *data) +{ + u32 i; + + if (!ipa_resource_limits_valid(ipa, data)) + return -EINVAL; + + for (i = 0; i < data->resource_src_count; i++) + ipa_resource_config_src(ipa, i, data); + + for (i = 0; i < data->resource_dst_count; i++) + ipa_resource_config_dst(ipa, i, data); + + return 0; +} + +/* Inverse of ipa_resource_config() */ +void ipa_resource_deconfig(struct ipa *ipa) +{ + /* Nothing to do */ +} diff --git a/drivers/net/ipa/ipa_resource.h b/drivers/net/ipa/ipa_resource.h new file mode 100644 index 000000000000..9f74036fb95c --- /dev/null +++ b/drivers/net/ipa/ipa_resource.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. + * Copyright (C) 2019-2021 Linaro Ltd. + */ +#ifndef _IPA_RESOURCE_H_ +#define _IPA_RESOURCE_H_ + +struct ipa; +struct ipa_resource_data; + +/** + * ipa_resource_config() - Configure resources + * @ipa: IPA pointer + * @data: IPA resource configuration data + * + * Return: true if all regions are valid, false otherwise + */ +int ipa_resource_config(struct ipa *ipa, const struct ipa_resource_data *data); + +/** + * ipa_resource_deconfig() - Inverse of ipa_resource_config() + * @ipa: IPA pointer + */ +void ipa_resource_deconfig(struct ipa *ipa); + +#endif /* _IPA_RESOURCE_H_ */ |