Re: [Intel-gfx] [PATCH 03/21] drm/i915/adl_s: Add ADL-S platform info and PCI ids

Jani Nikula
2020-11-17T19:18:06Z

On Tue, 17 Nov 2020, Aditya Swarup <aditya.swarup@intel.com> wrote:
> From: Caz Yokoyama <caz.yokoyama@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)
>
> Bspec: 53597
> Bspec: 53648
> Bspec: 53655
> Bspec: 48028
> Bspec: 53650
> BSpec: 50422
>
> Cc: José Roberto de Souza <jose.souza@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Cc: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
> Cc: Jani Nikula <jani.nikula@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Cc: Imre Deak <imre.deak@intel.com>
> Signed-off-by: Caz Yokoyama <caz.yokoyama@intel.com>
> Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
> ---
> drivers/gpu/drm/i915/gt/intel_workarounds.c | 8 ++++++++
> drivers/gpu/drm/i915/i915_drv.h | 20 ++++++++++++++++++++
> drivers/gpu/drm/i915/i915_pci.c | 12 ++++++++++++
> drivers/gpu/drm/i915/intel_device_info.c | 1 +
> drivers/gpu/drm/i915/intel_device_info.h | 1 +
> include/drm/i915_pciids.h | 13 +++++++++++++
> 6 files changed, 55 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index d756155d82ea..d88d3d60fb1c 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -83,6 +83,14 @@ const struct i915_rev_steppings tgl_revids[] = {
> [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)
> {
> wal->name = name;
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 437916aacaa6..817a5102b94f 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1423,6 +1423,7 @@ 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) \
> @@ -1566,6 +1567,7 @@ extern const struct i915_rev_steppings kbl_revids[];
>
> enum {
> REVID_A0,
> + REVID_A2,

Don't the numerical values matter?

> REVID_B0,
> REVID_B1,
> REVID_C0,
> @@ -1607,6 +1609,24 @@ 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*/

Why do we now have both macros and enums for this stuff?

> +
> +extern const struct i915_rev_steppings adls_revids[];

Yuck. Oh man, we really really should not have embarked on this path of
adding array externs to begin with. It should have been better
abstracted.

BR,
Jani.

> +
> +#define IS_ADLS_DISP_REVID(p, since, until) \
> + (IS_ALDERLAKE_S(p) && \
> + adls_revids[INTEL_REVID(p)].disp_stepping >= (since) && \
> + adls_revids[INTEL_REVID(p)].disp_stepping <= (until))
> +
> +#define IS_ADLS_GT_REVID(p, since, until) \
> + (IS_ALDERLAKE_S(p) && \
> + adls_revids[INTEL_REVID(p)].gt_stepping >= (since) && \
> + adls_revids[INTEL_REVID(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..069ac0c28bb3 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -925,6 +925,17 @@ 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_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 +1012,7 @@ 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 e67cec8fa2aa..7310e019c611 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/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 */

--
Jani Nikula, Intel Open Source Graphics Center