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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-02-22 00:14:41 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-06-22 19:58:20 +0300 |
| commit | 3b1d8d577ca8d0619c88ac76a943aa4ce11a3027 (patch) | |
| tree | b5fb6f75f02189aeb64cf27bba81fe926722f97d /drivers/thunderbolt/tb_regs.h | |
| parent | acf815b86768d591d9ac429e3b40c703d911b6ff (diff) | |
| download | linux-3b1d8d577ca8d0619c88ac76a943aa4ce11a3027.tar.xz | |
thunderbolt: Implement USB3 bandwidth negotiation routines
Each host router USB3 downstream adapter has a set of registers that are
used to negotiate bandwidth between the connection manager and the
internal xHCI controller. These registers allow dynamic bandwidth
management for USB3 isochronous traffic based on what is actually
consumed vs. allocated at any given time.
Implement these USB3 bandwidth negotiation routines to allow the
software connection manager take advantage of these.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tb_regs.h')
| -rw-r--r-- | drivers/thunderbolt/tb_regs.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index 77d4b8598835..4fc561347b7c 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -338,6 +338,25 @@ struct tb_regs_port_header { #define ADP_USB3_CS_0 0x00 #define ADP_USB3_CS_0_V BIT(30) #define ADP_USB3_CS_0_PE BIT(31) +#define ADP_USB3_CS_1 0x01 +#define ADP_USB3_CS_1_CUBW_MASK GENMASK(11, 0) +#define ADP_USB3_CS_1_CDBW_MASK GENMASK(23, 12) +#define ADP_USB3_CS_1_CDBW_SHIFT 12 +#define ADP_USB3_CS_1_HCA BIT(31) +#define ADP_USB3_CS_2 0x02 +#define ADP_USB3_CS_2_AUBW_MASK GENMASK(11, 0) +#define ADP_USB3_CS_2_ADBW_MASK GENMASK(23, 12) +#define ADP_USB3_CS_2_ADBW_SHIFT 12 +#define ADP_USB3_CS_2_CMR BIT(31) +#define ADP_USB3_CS_3 0x03 +#define ADP_USB3_CS_3_SCALE_MASK GENMASK(5, 0) +#define ADP_USB3_CS_4 0x04 +#define ADP_USB3_CS_4_ALR_MASK GENMASK(6, 0) +#define ADP_USB3_CS_4_ALR_20G 0x1 +#define ADP_USB3_CS_4_ULV BIT(7) +#define ADP_USB3_CS_4_MSLR_MASK GENMASK(18, 12) +#define ADP_USB3_CS_4_MSLR_SHIFT 12 +#define ADP_USB3_CS_4_MSLR_20G 0x1 /* Hop register from TB_CFG_HOPS. 8 byte per entry. */ struct tb_regs_hop { |