diff options
| author |   Alex Elder <elder@linaro.org> | 2021-03-26 10:11:22 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-03-26 15:02:39 -0700 |
| commit | 3219953bedc563ef988fa423f8ac67a441f69b4b (patch) | |
| tree | e9d2f56849a04dd06bbda8ce7bac8154ea16bf7b /drivers/net/ipa | |
| parent | net: ipa: record number of groups in data (diff) | |
| download | linux-dev-3219953bedc563ef988fa423f8ac67a441f69b4b.tar.xz linux-dev-3219953bedc563ef988fa423f8ac67a441f69b4b.zip | |
net: ipa: support more than 6 resource groups
IPA versions 3.0 and 3.1 support up to 8 resource groups. There is
some interest in supporting these older versions of the hardware, so
update the resource configuration code to program resource limits
for these groups if specified.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ipa')
| -rw-r--r-- | drivers/net/ipa/ipa_data.h | 4 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_reg.h | 4 | ||||
| -rw-r--r-- | drivers/net/ipa/ipa_resource.c | 18 |
3 files changed, 22 insertions, 4 deletions
diff --git a/drivers/net/ipa/ipa_data.h b/drivers/net/ipa/ipa_data.h index c5d763a3782f..ea8f99286228 100644 --- a/drivers/net/ipa/ipa_data.h +++ b/drivers/net/ipa/ipa_data.h @@ -46,8 +46,8 @@ * the IPA endpoint. */ -/* The maximum value returned by ipa_resource_group_{src,dst}_count() */ -#define IPA_RESOURCE_GROUP_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 { diff --git a/drivers/net/ipa/ipa_reg.h b/drivers/net/ipa/ipa_reg.h index 9c798cef7b2e..de2a944bad86 100644 --- a/drivers/net/ipa/ipa_reg.h +++ b/drivers/net/ipa/ipa_reg.h @@ -353,12 +353,16 @@ enum ipa_pulse_gran { (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 index 578ff070d405..85f922d6f222 100644 --- a/drivers/net/ipa/ipa_resource.c +++ b/drivers/net/ipa/ipa_resource.c @@ -34,8 +34,8 @@ static bool ipa_resource_limits_valid(struct ipa *ipa, u32 i; u32 j; - /* We program at most 6 source or destination resource group limits */ - BUILD_BUG_ON(IPA_RESOURCE_GROUP_MAX > 6); + /* 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) @@ -113,6 +113,13 @@ static void ipa_resource_config_src(struct ipa *ipa, u32 resource_type, 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, @@ -142,6 +149,13 @@ static void ipa_resource_config_dst(struct ipa *ipa, u32 resource_type, 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 */ |