From 1d3cc7ab2b00f849c94bd7e5fcffc7899dc4039a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= Date: Fri, 7 Aug 2020 12:26:28 -0700 Subject: drm/i915/tgl: Set subplatforms MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There is no way to differentiate TGL-U from TGL-Y by the PCI ids as some ids are available in both SKUs. So here using the root device id in the PCI bus that iGPU is in to differentiate between U and Y. BSpec: 44455 Reviewed-by: Swathi Dhanavanthri Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20200807192629.64134-1-jose.souza@intel.com Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/i915_drv.h | 6 ++++++ drivers/gpu/drm/i915/i915_reg.h | 6 ++++++ drivers/gpu/drm/i915/intel_device_info.c | 19 +++++++++++++++++++ 3 files changed, 31 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 56dfc6d98caa..a59f64821920 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1497,6 +1497,12 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define IS_ICL_WITH_PORT_F(dev_priv) \ IS_SUBPLATFORM(dev_priv, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF) +#define IS_TGL_U(dev_priv) \ + IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULT) + +#define IS_TGL_Y(dev_priv) \ + IS_SUBPLATFORM(dev_priv, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_ULX) + #define SKL_REVID_A0 0x0 #define SKL_REVID_B0 0x1 #define SKL_REVID_C0 0x2 diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index e85c6fc1f3cb..14d8c3fbcc0d 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -12353,4 +12353,10 @@ enum skl_power_gate { #define DSB_ENABLE (1 << 31) #define DSB_STATUS (1 << 0) +#define TGL_ROOT_DEVICE_ID 0x9A00 +#define TGL_ROOT_DEVICE_MASK 0xFF00 +#define TGL_ROOT_DEVICE_SKU_MASK 0xF +#define TGL_ROOT_DEVICE_SKU_ULX 0x2 +#define TGL_ROOT_DEVICE_SKU_ULT 0x4 + #endif /* _I915_REG_H_ */ diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c index 40c590db3c76..e2aa5bc3a6e0 100644 --- a/drivers/gpu/drm/i915/intel_device_info.c +++ b/drivers/gpu/drm/i915/intel_device_info.c @@ -346,6 +346,25 @@ void intel_device_info_subplatform_init(struct drm_i915_private *i915) mask = BIT(INTEL_SUBPLATFORM_PORTF); } + if (IS_TIGERLAKE(i915)) { + struct pci_dev *root, *pdev = i915->drm.pdev; + + root = list_first_entry(&pdev->bus->devices, typeof(*root), bus_list); + + drm_WARN_ON(&i915->drm, mask); + drm_WARN_ON(&i915->drm, (root->device & TGL_ROOT_DEVICE_MASK) != + TGL_ROOT_DEVICE_ID); + + switch (root->device & TGL_ROOT_DEVICE_SKU_MASK) { + case TGL_ROOT_DEVICE_SKU_ULX: + mask = BIT(INTEL_SUBPLATFORM_ULX); + break; + case TGL_ROOT_DEVICE_SKU_ULT: + mask = BIT(INTEL_SUBPLATFORM_ULT); + break; + } + } + GEM_BUG_ON(mask & ~INTEL_SUBPLATFORM_BITS); RUNTIME_INFO(i915)->platform_mask[pi] |= mask; -- cgit v1.2.3