On Mon, 2021-03-08 at 15:56 +0200, Jani Nikula wrote:
> This changes the way revids not present in the array are handled:
>
> - For gaps in the array, the next present revid is used.
>
> - For revids beyond the array, the new STEP_FUTURE is used instead of
> the last revid in the array.
>
> In both cases, we'll get debug logging of what's going on.
>
> v2: Rename stepping->step
>
Reviewed-by: José Roberto de Souza <jose.so...@intel.com>
> Signed-off-by: Jani Nikula <jani.nik...@intel.com>
> ---
> drivers/gpu/drm/i915/i915_drv.h | 59 ++++++++-----------------------
> drivers/gpu/drm/i915/intel_step.c | 17 ++++++---
> drivers/gpu/drm/i915/intel_step.h | 8 -----
> 3 files changed, 28 insertions(+), 56 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 7f259aab4226..991318e90b5a 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1510,44 +1510,17 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
> #define IS_JSL_EHL_REVID(p, since, until) \
> (IS_JSL_EHL(p) && IS_REVID(p, since, until))
>
>
>
>
> -static inline const struct i915_rev_steppings *
> -tgl_stepping_get(struct drm_i915_private *dev_priv)
> -{
> - u8 revid = INTEL_REVID(dev_priv);
> - u8 size;
> - const struct i915_rev_steppings *revid_step_tbl;
> -
> - if (IS_ALDERLAKE_S(dev_priv)) {
> - revid_step_tbl = adls_revid_step_tbl;
> - size = ARRAY_SIZE(adls_revid_step_tbl);
> - } else if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv)) {
> - revid_step_tbl = tgl_uy_revid_step_tbl;
> - size = ARRAY_SIZE(tgl_uy_revid_step_tbl);
> - } else {
> - revid_step_tbl = tgl_revid_step_tbl;
> - size = ARRAY_SIZE(tgl_revid_step_tbl);
> - }
> -
> - revid = min_t(u8, revid, size - 1);
> -
> - return &revid_step_tbl[revid];
> -}
> -
> -#define IS_TGL_DISP_STEPPING(p, since, until) \
> - (IS_TIGERLAKE(p) && \
> - tgl_stepping_get(p)->disp_stepping >= (since) && \
> - tgl_stepping_get(p)->disp_stepping <= (until))
> +#define IS_TGL_DISP_STEPPING(__i915, since, until) \
> + (IS_TIGERLAKE(__i915) && \
> + IS_DISPLAY_STEP(__i915, since, until))
>
>
>
>
> -#define IS_TGL_UY_GT_STEPPING(p, since, until) \
> - ((IS_TGL_U(p) || IS_TGL_Y(p)) && \
> - tgl_stepping_get(p)->gt_stepping >= (since) && \
> - tgl_stepping_get(p)->gt_stepping <= (until))
> +#define IS_TGL_UY_GT_STEPPING(__i915, since, until) \
> + ((IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
> + IS_GT_STEP(__i915, since, until))
>
>
>
>
> -#define IS_TGL_GT_STEPPING(p, since, until) \
> - (IS_TIGERLAKE(p) && \
> - !(IS_TGL_U(p) || IS_TGL_Y(p)) && \
> - tgl_stepping_get(p)->gt_stepping >= (since) && \
> - tgl_stepping_get(p)->gt_stepping <= (until))
> +#define IS_TGL_GT_STEPPING(__i915, since, until) \
> + (IS_TIGERLAKE(__i915) && !(IS_TGL_U(__i915) || IS_TGL_Y(__i915)) && \
> + IS_GT_STEP(__i915, since, until))
>
>
>
>
> #define RKL_REVID_A0 0x0
> #define RKL_REVID_B0 0x1
> @@ -1562,15 +1535,13 @@ tgl_stepping_get(struct drm_i915_private *dev_priv)
> #define IS_DG1_REVID(p, since, until) \
> (IS_DG1(p) && IS_REVID(p, since, until))
>
>
>
>
> -#define IS_ADLS_DISP_STEPPING(p, since, until) \
> - (IS_ALDERLAKE_S(p) && \
> - tgl_stepping_get(p)->disp_stepping >= (since) && \
> - tgl_stepping_get(p)->disp_stepping <= (until))
> +#define IS_ADLS_DISP_STEPPING(__i915, since, until) \
> + (IS_ALDERLAKE_S(__i915) && \
> + IS_DISPLAY_STEP(__i915, since, until))
>
>
>
>
> -#define IS_ADLS_GT_STEPPING(p, since, until) \
> - (IS_ALDERLAKE_S(p) && \
> - tgl_stepping_get(p)->gt_stepping >= (since) && \
> - tgl_stepping_get(p)->gt_stepping <= (until))
> +#define IS_ADLS_GT_STEPPING(__i915, since, until) \
> + (IS_ALDERLAKE_S(__i915) && \
> + IS_GT_STEP(__i915, since, 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))
> diff --git a/drivers/gpu/drm/i915/intel_step.c
> b/drivers/gpu/drm/i915/intel_step.c
> index aaa9494b0f4f..4593eba24a7d 100644
> --- a/drivers/gpu/drm/i915/intel_step.c
> +++ b/drivers/gpu/drm/i915/intel_step.c
> @@ -26,7 +26,7 @@ static const struct i915_rev_steppings kbl_revids[] = {
> [7] = { .gt_stepping = STEP_G0, .disp_stepping = STEP_C0 },
> };
>
>
>
>
> -const struct i915_rev_steppings tgl_uy_revid_step_tbl[] = {
> +static const struct i915_rev_steppings tgl_uy_revid_step_tbl[] = {
> [0] = { .gt_stepping = STEP_A0, .disp_stepping = STEP_A0 },
> [1] = { .gt_stepping = STEP_B0, .disp_stepping = STEP_C0 },
> [2] = { .gt_stepping = STEP_B1, .disp_stepping = STEP_C0 },
> @@ -34,12 +34,12 @@ const struct i915_rev_steppings tgl_uy_revid_step_tbl[] =
> {
> };
>
>
>
>
> /* Same GT stepping between tgl_uy_revids and tgl_revids don't mean the same
> HW */
> -const struct i915_rev_steppings tgl_revid_step_tbl[] = {
> +static const struct i915_rev_steppings tgl_revid_step_tbl[] = {
> [0] = { .gt_stepping = STEP_A0, .disp_stepping = STEP_B0 },
> [1] = { .gt_stepping = STEP_B0, .disp_stepping = STEP_D0 },
> };
>
>
>
>
> -const struct i915_rev_steppings adls_revid_step_tbl[] = {
> +static const struct i915_rev_steppings adls_revid_step_tbl[] = {
> [0x0] = { .gt_stepping = STEP_A0, .disp_stepping = STEP_A0 },
> [0x1] = { .gt_stepping = STEP_A0, .disp_stepping = STEP_A2 },
> [0x4] = { .gt_stepping = STEP_B0, .disp_stepping = STEP_B0 },
> @@ -54,7 +54,16 @@ void intel_step_init(struct drm_i915_private *i915)
> int revid = INTEL_REVID(i915);
> struct i915_rev_steppings step = {};
>
>
>
>
> - if (IS_KABYLAKE(i915)) {
> + if (IS_ALDERLAKE_S(i915)) {
> + revids = adls_revid_step_tbl;
> + size = ARRAY_SIZE(adls_revid_step_tbl);
> + } else if (IS_TGL_U(i915) || IS_TGL_Y(i915)) {
> + revids = tgl_uy_revid_step_tbl;
> + size = ARRAY_SIZE(tgl_uy_revid_step_tbl);
> + } else if (IS_TIGERLAKE(i915)) {
> + revids = tgl_revid_step_tbl;
> + size = ARRAY_SIZE(tgl_revid_step_tbl);
> + } else if (IS_KABYLAKE(i915)) {
> revids = kbl_revids;
> size = ARRAY_SIZE(kbl_revids);
> }
> diff --git a/drivers/gpu/drm/i915/intel_step.h
> b/drivers/gpu/drm/i915/intel_step.h
> index b29e15f71214..5cc5601794f0 100644
> --- a/drivers/gpu/drm/i915/intel_step.h
> +++ b/drivers/gpu/drm/i915/intel_step.h
> @@ -15,14 +15,6 @@ struct i915_rev_steppings {
> u8 disp_stepping;
> };
>
>
>
>
> -#define TGL_UY_REVID_STEP_TBL_SIZE 4
> -#define TGL_REVID_STEP_TBL_SIZE 2
> -#define ADLS_REVID_STEP_TBL_SIZE 13
> -
> -extern const struct i915_rev_steppings
> tgl_uy_revid_step_tbl[TGL_UY_REVID_STEP_TBL_SIZE];
> -extern const struct i915_rev_steppings
> tgl_revid_step_tbl[TGL_REVID_STEP_TBL_SIZE];
> -extern const struct i915_rev_steppings
> adls_revid_step_tbl[ADLS_REVID_STEP_TBL_SIZE];
> -
> /*
> * Symbolic steppings that do not match the hardware. These are valid both
> as gt
> * and display steppings as symbolic names.
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