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| author |   Alex Deucher <alexander.deucher@amd.com> | 2013-08-06 11:29:39 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 16:30:04 -0400 |
| commit | 8a7cd27679d0451c7cf072af70acce51d15c446d (patch) | |
| tree | c72d561090c1b716bf67e46fc28d7235d501b5a7 /drivers/gpu/drm/radeon/cikd.h | |
| parent | drm/radeon: switch CIK to use radeon_ucode.h (diff) | |
| download | linux-dev-8a7cd27679d0451c7cf072af70acce51d15c446d.tar.xz linux-dev-8a7cd27679d0451c7cf072af70acce51d15c446d.zip | |
drm/radeon/cik: add support for pcie gen1/2/3 switching
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/cikd.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/cikd.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h index 7e9275eaef80..a1f376e6dd31 100644 --- a/drivers/gpu/drm/radeon/cikd.h +++ b/drivers/gpu/drm/radeon/cikd.h @@ -35,6 +35,63 @@ #define CG_CLKPIN_CNTL 0xC05001A0 # define XTALIN_DIVIDE (1 << 1) +/* PCIE registers idx/data 0x38/0x3c */ +#define PCIE_LC_STATUS1 0x1400028 /* PCIE */ +# define LC_REVERSE_RCVR (1 << 0) +# define LC_REVERSE_XMIT (1 << 1) +# define LC_OPERATING_LINK_WIDTH_MASK (0x7 << 2) +# define LC_OPERATING_LINK_WIDTH_SHIFT 2 +# define LC_DETECTED_LINK_WIDTH_MASK (0x7 << 5) +# define LC_DETECTED_LINK_WIDTH_SHIFT 5 + +#define PCIE_LC_LINK_WIDTH_CNTL 0x100100A2 /* PCIE */ +# define LC_LINK_WIDTH_SHIFT 0 +# define LC_LINK_WIDTH_MASK 0x7 +# define LC_LINK_WIDTH_X0 0 +# define LC_LINK_WIDTH_X1 1 +# define LC_LINK_WIDTH_X2 2 +# define LC_LINK_WIDTH_X4 3 +# define LC_LINK_WIDTH_X8 4 +# define LC_LINK_WIDTH_X16 6 +# define LC_LINK_WIDTH_RD_SHIFT 4 +# define LC_LINK_WIDTH_RD_MASK 0x70 +# define LC_RECONFIG_ARC_MISSING_ESCAPE (1 << 7) +# define LC_RECONFIG_NOW (1 << 8) +# define LC_RENEGOTIATION_SUPPORT (1 << 9) +# define LC_RENEGOTIATE_EN (1 << 10) +# define LC_SHORT_RECONFIG_EN (1 << 11) +# define LC_UPCONFIGURE_SUPPORT (1 << 12) +# define LC_UPCONFIGURE_DIS (1 << 13) +# define LC_DYN_LANES_PWR_STATE(x) ((x) << 21) +# define LC_DYN_LANES_PWR_STATE_MASK (0x3 << 21) +# define LC_DYN_LANES_PWR_STATE_SHIFT 21 + +#define PCIE_LC_SPEED_CNTL 0x100100A4 /* PCIE */ +# define LC_GEN2_EN_STRAP (1 << 0) +# define LC_GEN3_EN_STRAP (1 << 1) +# define LC_TARGET_LINK_SPEED_OVERRIDE_EN (1 << 2) +# define LC_TARGET_LINK_SPEED_OVERRIDE_MASK (0x3 << 3) +# define LC_TARGET_LINK_SPEED_OVERRIDE_SHIFT 3 +# define LC_FORCE_EN_SW_SPEED_CHANGE (1 << 5) +# define LC_FORCE_DIS_SW_SPEED_CHANGE (1 << 6) +# define LC_FORCE_EN_HW_SPEED_CHANGE (1 << 7) +# define LC_FORCE_DIS_HW_SPEED_CHANGE (1 << 8) +# define LC_INITIATE_LINK_SPEED_CHANGE (1 << 9) +# define LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_MASK (0x3 << 10) +# define LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_SHIFT 10 +# define LC_CURRENT_DATA_RATE_MASK (0x3 << 13) /* 0/1/2 = gen1/2/3 */ +# define LC_CURRENT_DATA_RATE_SHIFT 13 +# define LC_CLR_FAILED_SPD_CHANGE_CNT (1 << 16) +# define LC_OTHER_SIDE_EVER_SENT_GEN2 (1 << 18) +# define LC_OTHER_SIDE_SUPPORTS_GEN2 (1 << 19) +# define LC_OTHER_SIDE_EVER_SENT_GEN3 (1 << 20) +# define LC_OTHER_SIDE_SUPPORTS_GEN3 (1 << 21) + +#define PCIE_LC_CNTL4 0x100100B6 /* PCIE */ +# define LC_REDO_EQ (1 << 5) +# define LC_SET_QUIESCE (1 << 13) + +/* direct registers */ #define PCIE_INDEX 0x38 #define PCIE_DATA 0x3C |