linux-kernel - [PATCH 14/20] drm/i915/dg2: add gsc with special gsc bar offsets

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Message-Id: <20220407125839.1479249-15-alexander.usyskin@intel.com>
Date:   Thu,  7 Apr 2022 15:58:33 +0300
From:   Alexander Usyskin <alexander.usyskin@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>
Cc:     Tomas Winkler <tomas.winkler@...el.com>,
        Alexander Usyskin <alexander.usyskin@...el.com>,
        Vitaly Lubart <vitaly.lubart@...el.com>,
        intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 14/20] drm/i915/dg2: add gsc with special gsc bar offsets

From: Tomas Winkler <tomas.winkler@...el.com>

DG2 uses different GSC offsets on memory bar
and uses PXP head (HECI1).

Signed-off-by: Alexander Usyskin <alexander.usyskin@...el.com>
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
 drivers/gpu/drm/i915/gt/intel_gsc.c | 15 +++++++++++++++
 drivers/gpu/drm/i915/i915_pci.c     |  1 +
 drivers/gpu/drm/i915/i915_reg.h     |  2 ++
 3 files changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_gsc.c b/drivers/gpu/drm/i915/gt/intel_gsc.c
index ffe6716590f0..bfc307e49bf9 100644
--- a/drivers/gpu/drm/i915/gt/intel_gsc.c
+++ b/drivers/gpu/drm/i915/gt/intel_gsc.c
@@ -69,6 +69,19 @@ static const struct gsc_def gsc_def_xehpsdv[] = {
 	}
 };
 
+static const struct gsc_def gsc_def_dg2[] = {
+	{
+		.name = "mei-gsc",
+		.bar = DG2_GSC_HECI1_BASE,
+		.bar_size = GSC_BAR_LENGTH,
+	},
+	{
+		.name = "mei-gscfi",
+		.bar = DG2_GSC_HECI2_BASE,
+		.bar_size = GSC_BAR_LENGTH,
+	}
+};
+
 static void gsc_release_dev(struct device *dev)
 {
 	struct auxiliary_device *aux_dev = to_auxiliary_dev(dev);
@@ -109,6 +122,8 @@ static void gsc_init_one(struct drm_i915_private *i915,
 		def = &gsc_def_dg1[intf_id];
 	} else if (IS_XEHPSDV(i915)) {
 		def = &gsc_def_xehpsdv[intf_id];
+	} else if (IS_DG2(i915)) {
+		def = &gsc_def_dg2[intf_id];
 	} else {
 		drm_warn_once(&i915->drm, "Unknown platform\n");
 		return;
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 06e6dad0d7f7..cb6dcc3f48f4 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -1051,6 +1051,7 @@ static const struct intel_device_info xehpsdv_info = {
 	.has_4tile = 1, \
 	.has_64k_pages = 1, \
 	.has_guc_deprivilege = 1, \
+	.has_heci_pxp = 1, \
 	.needs_compact_pt = 1, \
 	.platform_engine_mask = \
 		BIT(RCS0) | BIT(BCS0) | \
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1dd7b7de6002..efcfe32cd8eb 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -978,6 +978,8 @@
 #define BLT_RING_BASE		0x22000
 #define DG1_GSC_HECI1_BASE	0x00258000
 #define DG1_GSC_HECI2_BASE	0x00259000
+#define DG2_GSC_HECI1_BASE	0x00373000
+#define DG2_GSC_HECI2_BASE	0x00374000
 
 
 
-- 
2.32.0