This patch should at least be splitted into two, all the stepping changes here 
should go to a new patch.

On Fri, 2020-12-04 at 17:08 -0800, Aditya Swarup wrote:
> From: Caz Yokoyama <caz.yokoy...@intel.com>
> 
> - Add the initial platform information for Alderlake-S.
> - Specify ppgtt_size value
> - Add dma_mask_size
> - Add ADLS REVIDs
> - HW tracking(Selective Update Tracking Enable) has been
>   removed from ADLS. Disable PSR2 till we enable software/
>   manual tracking.
> 
> v2:
> - Add support for different ADLS SOC steppings to select
>   correct GT/DISP stepping based on Bspec 53655 based on
>   feedback from Matt Roper.(aswarup)
> 
> v3:
> - Make display/gt steppings info generic for reuse with TGL and ADLS.
> - Modify the macros to reuse tgl_revids_get()
> - Add HTI support to adls device info.(mdroper)
> 
> Bspec: 53597
> Bspec: 53648
> Bspec: 53655
> Bspec: 48028
> Bspec: 53650
> BSpec: 50422
> 
> Cc: José Roberto de Souza <jose.so...@intel.com>
> Cc: Matt Roper <matthew.d.ro...@intel.com>
> Cc: Lucas De Marchi <lucas.demar...@intel.com>
> Cc: Anusha Srivatsa <anusha.sriva...@intel.com>
> Cc: Jani Nikula <jani.nik...@intel.com>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Cc: Imre Deak <imre.d...@intel.com>
> Signed-off-by: Caz Yokoyama <caz.yokoy...@intel.com>
> Signed-off-by: Aditya Swarup <aditya.swa...@intel.com>
> ---
>  .../drm/i915/display/intel_display_power.c    |  2 +-
>  drivers/gpu/drm/i915/display/intel_psr.c      |  4 +-
>  drivers/gpu/drm/i915/display/intel_sprite.c   |  2 +-
>  drivers/gpu/drm/i915/gt/intel_workarounds.c   | 28 +++++++-----
>  drivers/gpu/drm/i915/i915_drv.h               | 45 ++++++++++++++-----
>  drivers/gpu/drm/i915/i915_pci.c               | 13 ++++++
>  drivers/gpu/drm/i915/intel_device_info.c      |  1 +
>  drivers/gpu/drm/i915/intel_device_info.h      |  1 +
>  drivers/gpu/drm/i915/intel_pm.c               |  2 +-
>  include/drm/i915_pciids.h                     | 13 ++++++
>  10 files changed, 86 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c 
> b/drivers/gpu/drm/i915/display/intel_display_power.c
> index fe2d90bba536..06c036e2092c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_power.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_power.c
> @@ -5283,7 +5283,7 @@ static void tgl_bw_buddy_init(struct drm_i915_private 
> *dev_priv)
>       int config, i;
>  
> 
>       if (IS_DG1_REVID(dev_priv, DG1_REVID_A0, DG1_REVID_A0) ||
> -         IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B0))
> +         IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_B0))
>               /* Wa_1409767108:tgl,dg1 */
>               table = wa_1409767108_buddy_page_masks;
>       else
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index d9a395c486d3..1771f5000a45 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -550,7 +550,7 @@ static void hsw_activate_psr2(struct intel_dp *intel_dp)
>  
> 
>       if (dev_priv->psr.psr2_sel_fetch_enabled) {
>               /* WA 1408330847 */
> -             if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
> +             if (IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_A0) ||
>                   IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0))
>                       intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
>                                    DIS_RAM_BYPASS_PSR2_MAN_TRACK,
> @@ -1102,7 +1102,7 @@ static void intel_psr_disable_locked(struct intel_dp 
> *intel_dp)
>  
> 
>       /* WA 1408330847 */
>       if (dev_priv->psr.psr2_sel_fetch_enabled &&
> -         (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_A0) ||
> +         (IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_A0) ||
>            IS_RKL_REVID(dev_priv, RKL_REVID_A0, RKL_REVID_A0)))
>               intel_de_rmw(dev_priv, CHICKEN_PAR1_1,
>                            DIS_RAM_BYPASS_PSR2_MAN_TRACK, 0);
> diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c 
> b/drivers/gpu/drm/i915/display/intel_sprite.c
> index b7e208816074..e19d4f873b94 100644
> --- a/drivers/gpu/drm/i915/display/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/display/intel_sprite.c
> @@ -3032,7 +3032,7 @@ static bool gen12_plane_supports_mc_ccs(struct 
> drm_i915_private *dev_priv,
>  {
>       /* Wa_14010477008:tgl[a0..c0],rkl[all],dg1[all] */
>       if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv) ||
> -         IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_C0))
> +         IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_C0))
>               return false;
>  
> 
>       return plane_id < PLANE_SPRITE4;
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c 
> b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 7c6b21ced56f..3db57b577a79 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -71,16 +71,24 @@ const struct i915_rev_steppings kbl_revids[] = {
>  };
>  
> 
>  const struct i915_rev_steppings tgl_uy_revids[] = {
> -     [0] = { .gt_stepping = TGL_REVID_A0, .disp_stepping = TGL_REVID_A0 },
> -     [1] = { .gt_stepping = TGL_REVID_B0, .disp_stepping = TGL_REVID_C0 },
> -     [2] = { .gt_stepping = TGL_REVID_B1, .disp_stepping = TGL_REVID_C0 },
> -     [3] = { .gt_stepping = TGL_REVID_C0, .disp_stepping = TGL_REVID_D0 },
> +     [0] = { .gt_stepping = REVID_A0, .disp_stepping = REVID_A0 },
> +     [1] = { .gt_stepping = REVID_B0, .disp_stepping = REVID_C0 },
> +     [2] = { .gt_stepping = REVID_B1, .disp_stepping = REVID_C0 },
> +     [3] = { .gt_stepping = REVID_C0, .disp_stepping = REVID_D0 },
>  };
>  
> 
>  /* Same GT stepping between tgl_uy_revids and tgl_revids don't mean the same 
> HW */
>  const struct i915_rev_steppings tgl_revids[] = {
> -     [0] = { .gt_stepping = TGL_REVID_A0, .disp_stepping = TGL_REVID_B0 },
> -     [1] = { .gt_stepping = TGL_REVID_B0, .disp_stepping = TGL_REVID_D0 },
> +     [0] = { .gt_stepping = REVID_A0, .disp_stepping = REVID_B0 },
> +     [1] = { .gt_stepping = REVID_B0, .disp_stepping = REVID_D0 },
> +};
> +
> +const struct i915_rev_steppings adls_revids[] = {
> +     [ADLS_REVID_A0] = { .gt_stepping = REVID_A0, .disp_stepping = REVID_A0 
> },
> +     [ADLS_REVID_A2] = { .gt_stepping = REVID_A0, .disp_stepping = REVID_A2 
> },
> +     [ADLS_REVID_B0] = { .gt_stepping = REVID_B0, .disp_stepping = REVID_B0 
> },
> +     [ADLS_REVID_G0] = { .gt_stepping = REVID_C0, .disp_stepping = REVID_B0 
> },
> +     [ADLS_REVID_C0] = { .gt_stepping = REVID_D0, .disp_stepping = REVID_C0 
> },
>  };
>  
> 
>  static void wa_init_start(struct i915_wa_list *wal, const char *name, const 
> char *engine_name)
> @@ -1250,13 +1258,13 @@ tgl_gt_workarounds_init(struct drm_i915_private 
> *i915, struct i915_wa_list *wal)
>       gen12_gt_workarounds_init(i915, wal);
>  
> 
>       /* Wa_1409420604:tgl */
> -     if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
> +     if (IS_TGL_UY_GT_REVID(i915, REVID_A0, REVID_A0))
>               wa_write_or(wal,
>                           SUBSLICE_UNIT_LEVEL_CLKGATE2,
>                           CPSSUNIT_CLKGATE_DIS);
>  
> 
>       /* Wa_1607087056:tgl also know as BUG:1409180338 */
> -     if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
> +     if (IS_TGL_UY_GT_REVID(i915, REVID_A0, REVID_A0))
>               wa_write_or(wal,
>                           SLICE_UNIT_LEVEL_CLKGATE,
>                           L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS);
> @@ -1734,7 +1742,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, 
> struct i915_wa_list *wal)
>       struct drm_i915_private *i915 = engine->i915;
>  
> 
>       if (IS_DG1_REVID(i915, DG1_REVID_A0, DG1_REVID_A0) ||
> -         IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
> +         IS_TGL_UY_GT_REVID(i915, REVID_A0, REVID_A0)) {
>               /*
>                * Wa_1607138336:tgl[a0],dg1[a0]
>                * Wa_1607063988:tgl[a0],dg1[a0]
> @@ -1744,7 +1752,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, 
> struct i915_wa_list *wal)
>                           GEN12_DISABLE_POSH_BUSY_FF_DOP_CG);
>       }
>  
> 
> -     if (IS_TGL_UY_GT_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
> +     if (IS_TGL_UY_GT_REVID(i915, REVID_A0, REVID_A0)) {
>               /*
>                * Wa_1606679103:tgl
>                * (see also Wa_1606682166:icl)
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 37c2df19ce52..91bd262dd871 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1424,6 +1424,7 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
>  #define IS_TIGERLAKE(dev_priv)       IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
>  #define IS_ROCKETLAKE(dev_priv)      IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
>  #define IS_DG1(dev_priv)        IS_PLATFORM(dev_priv, INTEL_DG1)
> +#define IS_ALDERLAKE_S(dev_priv) IS_PLATFORM(dev_priv, INTEL_ALDERLAKE_S)
>  #define IS_HSW_EARLY_SDV(dev_priv) (IS_HASWELL(dev_priv) && \
>                                   (INTEL_DEVID(dev_priv) & 0xFF00) == 0x0C00)
>  #define IS_BDW_ULT(dev_priv) \
> @@ -1566,37 +1567,43 @@ extern const struct i915_rev_steppings kbl_revids[];
>       (IS_JSL_EHL(p) && IS_REVID(p, since, until))
>  
> 
>  enum {
> -     TGL_REVID_A0,
> -     TGL_REVID_B0,
> -     TGL_REVID_B1,
> -     TGL_REVID_C0,
> -     TGL_REVID_D0,
> +     REVID_A0,
> +     REVID_A2,
> +     REVID_B0,
> +     REVID_B1,
> +     REVID_C0,
> +     REVID_D0,
>  };
>  
> 
>  #define TGL_UY_REVIDS_SIZE   4
>  #define TGL_REVIDS_SIZE              2
> +#define ADLS_REVIDS_SIZE     13
>  
> 
>  extern const struct i915_rev_steppings tgl_uy_revids[TGL_UY_REVIDS_SIZE];
>  extern const struct i915_rev_steppings tgl_revids[TGL_REVIDS_SIZE];
> +extern const struct i915_rev_steppings adls_revids[ADLS_REVIDS_SIZE];
>  
> 
>  static inline const struct i915_rev_steppings *
>  tgl_revids_get(struct drm_i915_private *dev_priv)
>  {
>       u8 revid = INTEL_REVID(dev_priv);
>       u8 size;
> -     const struct i915_rev_steppings *tgl_revid_tbl;
> +     const struct i915_rev_steppings *revid_tbl;
>  
> 
> -     if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv)) {
> -             tgl_revid_tbl = tgl_uy_revids;
> +     if (IS_ALDERLAKE_S(dev_priv)) {
> +             revid_tbl = adls_revids;
> +             size = ARRAY_SIZE(adls_revids);
> +     } else if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv)) {
> +             revid_tbl = tgl_uy_revids;
>               size = ARRAY_SIZE(tgl_uy_revids);
>       } else {
> -             tgl_revid_tbl = tgl_revids;
> +             revid_tbl = tgl_revids;
>               size = ARRAY_SIZE(tgl_revids);
>       }
>  
> 
>       revid = min_t(u8, revid, size - 1);
>  
> 
> -     return &tgl_revid_tbl[revid];
> +     return &revid_tbl[revid];
>  }
>  
> 
>  #define IS_TGL_DISP_REVID(p, since, until) \
> @@ -1628,6 +1635,24 @@ tgl_revids_get(struct drm_i915_private *dev_priv)
>  #define IS_DG1_REVID(p, since, until) \
>       (IS_DG1(p) && IS_REVID(p, since, until))
>  
> 
> +#define ADLS_REVID_A0                0x0
> +#define ADLS_REVID_A2                0x1
> +#define ADLS_REVID_B0                0x4
> +#define ADLS_REVID_G0                0x8
> +#define ADLS_REVID_C0                0xC /*Same as H0 ADLS SOC stepping*/
> +
> +extern const struct i915_rev_steppings adls_revids[];
> +
> +#define IS_ADLS_DISP_REVID(p, since, until) \
> +     (IS_ALDERLAKE_S(p) && \
> +      tgl_revids_get(p)->disp_stepping >= (since) && \
> +      tgl_revids_get(p)->disp_stepping <= (until))
> +
> +#define IS_ADLS_GT_REVID(p, since, until) \
> +     (IS_ALDERLAKE_S(p) && \
> +      tgl_revids_get(p)->gt_stepping >= (since) && \
> +      tgl_revids_get(p)->gt_stepping <= (until))
> +
>  #define IS_LP(dev_priv)      (INTEL_INFO(dev_priv)->is_lp)
>  #define IS_GEN9_LP(dev_priv) (IS_GEN(dev_priv, 9) && IS_LP(dev_priv))
>  #define IS_GEN9_BC(dev_priv) (IS_GEN(dev_priv, 9) && !IS_LP(dev_priv))
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index 11fe790b1969..26e4bf8bb4ef 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -925,6 +925,18 @@ static const struct intel_device_info dg1_info 
> __maybe_unused = {
>       .ppgtt_size = 47,
>  };
>  
> 
> +static const struct intel_device_info adl_s_info = {
> +     GEN12_FEATURES,
> +     PLATFORM(INTEL_ALDERLAKE_S),
> +     .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),
> +     .require_force_probe = 1,
> +     .display.has_hti = 1,
> +     .display.has_psr_hw_tracking = 0,
> +     .platform_engine_mask =
> +             BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0) | BIT(VCS2),
> +     .dma_mask_size = 46,
> +};
> +
>  #undef GEN
>  #undef PLATFORM
>  
> 
> @@ -1001,6 +1013,7 @@ static const struct pci_device_id pciidlist[] = {
>       INTEL_JSL_IDS(&jsl_info),
>       INTEL_TGL_12_IDS(&tgl_info),
>       INTEL_RKL_IDS(&rkl_info),
> +     INTEL_ADLS_IDS(&adl_s_info),
>       {0, 0, 0}
>  };
>  MODULE_DEVICE_TABLE(pci, pciidlist);
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c 
> b/drivers/gpu/drm/i915/intel_device_info.c
> index ef767f04c37c..ce8c69c17b8e 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -66,6 +66,7 @@ static const char * const platform_names[] = {
>       PLATFORM_NAME(TIGERLAKE),
>       PLATFORM_NAME(ROCKETLAKE),
>       PLATFORM_NAME(DG1),
> +     PLATFORM_NAME(ALDERLAKE_S),
>  };
>  #undef PLATFORM_NAME
>  
> 
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h 
> b/drivers/gpu/drm/i915/intel_device_info.h
> index d92fa041c700..360f3f1835f5 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -84,6 +84,7 @@ enum intel_platform {
>       INTEL_TIGERLAKE,
>       INTEL_ROCKETLAKE,
>       INTEL_DG1,
> +     INTEL_ALDERLAKE_S,
>       INTEL_MAX_PLATFORMS
>  };
>  
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index bbc73df7f753..d92616581819 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -7110,7 +7110,7 @@ static void tgl_init_clock_gating(struct 
> drm_i915_private *dev_priv)
>                  ILK_DPFC_CHICKEN_COMP_DUMMY_PIXEL);
>  
> 
>       /* Wa_1409825376:tgl (pre-prod)*/
> -     if (IS_TGL_DISP_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_B1))
> +     if (IS_TGL_DISP_REVID(dev_priv, REVID_A0, REVID_B1))
>               intel_uncore_write(&dev_priv->uncore, GEN9_CLKGATE_DIS_3, 
> intel_uncore_read(&dev_priv->uncore, GEN9_CLKGATE_DIS_3) |
>                          TGL_VRH_GATING_DIS);
>  
> 
> diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
> index 931e46191047..ae53ff8462ae 100644
> --- a/include/drm/i915_pciids.h
> +++ b/include/drm/i915_pciids.h
> @@ -634,4 +634,17 @@
>       INTEL_VGA_DEVICE(0x4907, info), \
>       INTEL_VGA_DEVICE(0x4908, info)
>  
> 
> +/* ADL-S */
> +#define INTEL_ADLS_IDS(info) \
> +     INTEL_VGA_DEVICE(0x4680, info), \
> +     INTEL_VGA_DEVICE(0x4681, info), \
> +     INTEL_VGA_DEVICE(0x4682, info), \
> +     INTEL_VGA_DEVICE(0x4683, info), \
> +     INTEL_VGA_DEVICE(0x4690, info), \
> +     INTEL_VGA_DEVICE(0x4691, info), \
> +     INTEL_VGA_DEVICE(0x4692, info), \
> +     INTEL_VGA_DEVICE(0x4693, info), \
> +     INTEL_VGA_DEVICE(0x4698, info), \
> +     INTEL_VGA_DEVICE(0x4699, info)
> +
>  #endif /* _I915_PCIIDS_H */

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