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author | Imre Deak | 2018-08-06 11:58:39 +0200 |
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committer | Imre Deak | 2018-08-08 12:51:19 +0200 |
commit | 75e39688f350f63dc916c1b9d01c973a3a7bf5c8 (patch) | |
tree | ec09e144487c0732df9bef55608fa9f0e67b055c /drivers/gpu/drm/i915/i915_reg.h | |
parent | drm/i915/vlv: Use power well CTL IDX instead of ID (diff) | |
download | kernel-qcow2-linux-75e39688f350f63dc916c1b9d01c973a3a7bf5c8.tar.gz kernel-qcow2-linux-75e39688f350f63dc916c1b9d01c973a3a7bf5c8.tar.xz kernel-qcow2-linux-75e39688f350f63dc916c1b9d01c973a3a7bf5c8.zip |
drm/i915/ddi: Use power well CTL IDX instead of ID
Similarly to the previous patch use a separate request/status HW flag
index defined right after the corresponding control registers instead of
depending for this on the power well IDs. Since the set of
control/status registers varies among the different power wells (on a
single platform), also add a new i915_power_well_registers struct that
we populate and assign to each DDI power well as needed.
Also clarify a bit the code comment describing the function and layout
of the control registers.
This also fixes a problem on ICL, where we incorrectly read the KVMR
control register in hsw_power_well_requesters() even for DDI and AUX
power wells.
v2:
- Clarify platform range tags in code comments. (Paulo)
- Fix line over 80 chars checkpatch warning.
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180806095843.13294-7-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
-rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 128 |
1 files changed, 84 insertions, 44 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index ed30b4f8b948..4f5eb49934b4 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -8925,46 +8925,78 @@ enum { #define HSW_AUD_CHICKENBIT _MMIO(0x65f10) #define SKL_AUD_CODEC_WAKE_SIGNAL (1 << 15) -/* HSW Power Wells */ -#define _HSW_PWR_WELL_CTL1 0x45400 -#define _HSW_PWR_WELL_CTL2 0x45404 -#define _HSW_PWR_WELL_CTL3 0x45408 -#define _HSW_PWR_WELL_CTL4 0x4540C - -#define _ICL_PWR_WELL_CTL_AUX1 0x45440 -#define _ICL_PWR_WELL_CTL_AUX2 0x45444 -#define _ICL_PWR_WELL_CTL_AUX4 0x4544C - -#define _ICL_PWR_WELL_CTL_DDI1 0x45450 -#define _ICL_PWR_WELL_CTL_DDI2 0x45454 -#define _ICL_PWR_WELL_CTL_DDI4 0x4545C - /* - * Each power well control register contains up to 16 (request, status) HW - * flag tuples. The register index and HW flag shift is determined by the - * power well ID (see i915_power_well_id). There are 4 possible sources of - * power well requests each source having its own set of control registers: - * BIOS, DRIVER, KVMR, DEBUG. + * HSW - ICL power wells + * + * Platforms have up to 3 power well control register sets, each set + * controlling up to 16 power wells via a request/status HW flag tuple: + * - main (HSW_PWR_WELL_CTL[1-4]) + * - AUX (ICL_PWR_WELL_CTL_AUX[1-4]) + * - DDI (ICL_PWR_WELL_CTL_DDI[1-4]) + * Each control register set consists of up to 4 registers used by different + * sources that can request a power well to be enabled: + * - BIOS (HSW_PWR_WELL_CTL1/ICL_PWR_WELL_CTL_AUX1/ICL_PWR_WELL_CTL_DDI1) + * - DRIVER (HSW_PWR_WELL_CTL2/ICL_PWR_WELL_CTL_AUX2/ICL_PWR_WELL_CTL_DDI2) + * - KVMR (HSW_PWR_WELL_CTL3) (only in the main register set) + * - DEBUG (HSW_PWR_WELL_CTL4/ICL_PWR_WELL_CTL_AUX4/ICL_PWR_WELL_CTL_DDI4) */ -#define _HSW_PW_REG_IDX(pw) ((pw) >> 4) -#define _HSW_PW_SHIFT(pw) (((pw) & 0xf) * 2) -#define HSW_PWR_WELL_CTL_BIOS(pw) _MMIO(_PICK(_HSW_PW_REG_IDX(pw), \ - _HSW_PWR_WELL_CTL1, \ - _ICL_PWR_WELL_CTL_AUX1, \ - _ICL_PWR_WELL_CTL_DDI1)) -#define HSW_PWR_WELL_CTL_DRIVER(pw) _MMIO(_PICK(_HSW_PW_REG_IDX(pw), \ - _HSW_PWR_WELL_CTL2, \ - _ICL_PWR_WELL_CTL_AUX2, \ - _ICL_PWR_WELL_CTL_DDI2)) -/* KVMR doesn't have a reg for AUX or DDI power well control */ -#define HSW_PWR_WELL_CTL_KVMR _MMIO(_HSW_PWR_WELL_CTL3) -#define HSW_PWR_WELL_CTL_DEBUG(pw) _MMIO(_PICK(_HSW_PW_REG_IDX(pw), \ - _HSW_PWR_WELL_CTL4, \ - _ICL_PWR_WELL_CTL_AUX4, \ - _ICL_PWR_WELL_CTL_DDI4)) - -#define HSW_PWR_WELL_CTL_REQ(pw) (1 << (_HSW_PW_SHIFT(pw) + 1)) -#define HSW_PWR_WELL_CTL_STATE(pw) (1 << _HSW_PW_SHIFT(pw)) +#define HSW_PWR_WELL_CTL1 _MMIO(0x45400) +#define HSW_PWR_WELL_CTL2 _MMIO(0x45404) +#define HSW_PWR_WELL_CTL3 _MMIO(0x45408) +#define HSW_PWR_WELL_CTL4 _MMIO(0x4540C) +#define HSW_PWR_WELL_CTL_REQ(pw_idx) (0x2 << ((pw_idx) * 2)) +#define HSW_PWR_WELL_CTL_STATE(pw_idx) (0x1 << ((pw_idx) * 2)) + +/* HSW/BDW power well */ +#define HSW_PW_CTL_IDX_GLOBAL 15 + +/* SKL/BXT/GLK/CNL power wells */ +#define SKL_PW_CTL_IDX_PW_2 15 +#define SKL_PW_CTL_IDX_PW_1 14 +#define CNL_PW_CTL_IDX_AUX_F 12 +#define CNL_PW_CTL_IDX_AUX_D 11 +#define GLK_PW_CTL_IDX_AUX_C 10 +#define GLK_PW_CTL_IDX_AUX_B 9 +#define GLK_PW_CTL_IDX_AUX_A 8 +#define CNL_PW_CTL_IDX_DDI_F 6 +#define SKL_PW_CTL_IDX_DDI_D 4 +#define SKL_PW_CTL_IDX_DDI_C 3 +#define SKL_PW_CTL_IDX_DDI_B 2 +#define SKL_PW_CTL_IDX_DDI_A_E 1 +#define GLK_PW_CTL_IDX_DDI_A 1 +#define SKL_PW_CTL_IDX_MISC_IO 0 + +/* ICL - power wells */ +#define ICL_PW_CTL_IDX_PW_4 3 +#define ICL_PW_CTL_IDX_PW_3 2 +#define ICL_PW_CTL_IDX_PW_2 1 +#define ICL_PW_CTL_IDX_PW_1 0 + +#define ICL_PWR_WELL_CTL_AUX1 _MMIO(0x45440) +#define ICL_PWR_WELL_CTL_AUX2 _MMIO(0x45444) +#define ICL_PWR_WELL_CTL_AUX4 _MMIO(0x4544C) +#define ICL_PW_CTL_IDX_AUX_TBT4 11 +#define ICL_PW_CTL_IDX_AUX_TBT3 10 +#define ICL_PW_CTL_IDX_AUX_TBT2 9 +#define ICL_PW_CTL_IDX_AUX_TBT1 8 +#define ICL_PW_CTL_IDX_AUX_F 5 +#define ICL_PW_CTL_IDX_AUX_E 4 +#define ICL_PW_CTL_IDX_AUX_D 3 +#define ICL_PW_CTL_IDX_AUX_C 2 +#define ICL_PW_CTL_IDX_AUX_B 1 +#define ICL_PW_CTL_IDX_AUX_A 0 + +#define ICL_PWR_WELL_CTL_DDI1 _MMIO(0x45450) +#define ICL_PWR_WELL_CTL_DDI2 _MMIO(0x45454) +#define ICL_PWR_WELL_CTL_DDI4 _MMIO(0x4545C) +#define ICL_PW_CTL_IDX_DDI_F 5 +#define ICL_PW_CTL_IDX_DDI_E 4 +#define ICL_PW_CTL_IDX_DDI_D 3 +#define ICL_PW_CTL_IDX_DDI_C 2 +#define ICL_PW_CTL_IDX_DDI_B 1 +#define ICL_PW_CTL_IDX_DDI_A 0 + +/* HSW - power well misc debug registers */ #define HSW_PWR_WELL_CTL5 _MMIO(0x45410) #define HSW_PWR_WELL_ENABLE_SINGLE_STEP (1 << 31) #define HSW_PWR_WELL_PWR_GATE_OVERRIDE (1 << 20) @@ -8980,18 +9012,26 @@ enum skl_power_gate { #define SKL_FUSE_STATUS _MMIO(0x42000) #define SKL_FUSE_DOWNLOAD_STATUS (1 << 31) -/* PG0 (HW control->no power well ID), PG1..PG2 (SKL_DISP_PW1..SKL_DISP_PW2) */ -#define SKL_PW_TO_PG(pw) ((pw) - SKL_DISP_PW_1 + SKL_PG1) -/* PG0 (HW control->no power well ID), PG1..PG4 (ICL_DISP_PW1..ICL_DISP_PW4) */ -#define ICL_PW_TO_PG(pw) ((pw) - ICL_DISP_PW_1 + SKL_PG1) +/* + * PG0 is HW controlled, so doesn't have a corresponding power well control knob + * SKL_DISP_PW1_IDX..SKL_DISP_PW2_IDX -> PG1..PG2 + */ +#define SKL_PW_CTL_IDX_TO_PG(pw_idx) \ + ((pw_idx) - SKL_PW_CTL_IDX_PW_1 + SKL_PG1) +/* + * PG0 is HW controlled, so doesn't have a corresponding power well control knob + * ICL_DISP_PW1_IDX..ICL_DISP_PW4_IDX -> PG1..PG4 + */ +#define ICL_PW_CTL_IDX_TO_PG(pw_idx) \ + ((pw_idx) - ICL_PW_CTL_IDX_PW_1 + SKL_PG1) #define SKL_FUSE_PG_DIST_STATUS(pg) (1 << (27 - (pg))) -#define _CNL_AUX_REG_IDX(pw) ((pw) - 9) +#define _CNL_AUX_REG_IDX(pw_idx) ((pw_idx) - GLK_PW_CTL_IDX_AUX_B) #define _CNL_AUX_ANAOVRD1_B 0x162250 #define _CNL_AUX_ANAOVRD1_C 0x162210 #define _CNL_AUX_ANAOVRD1_D 0x1622D0 #define _CNL_AUX_ANAOVRD1_F 0x162A90 -#define CNL_AUX_ANAOVRD1(pw) _MMIO(_PICK(_CNL_AUX_REG_IDX(pw), \ +#define CNL_AUX_ANAOVRD1(pw_idx) _MMIO(_PICK(_CNL_AUX_REG_IDX(pw_idx), \ _CNL_AUX_ANAOVRD1_B, \ _CNL_AUX_ANAOVRD1_C, \ _CNL_AUX_ANAOVRD1_D, \ |