From d40f3ad5b61ead78babefde00609c6413eee1c12 Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Tue, 11 Nov 2014 12:56:30 +0000
Subject: [PATCH] Initial attachment of the agp(4) to Haswell IGP.  There is no
 handling of cacheablility control bits in GTT PTEs yet.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
---
 sys/dev/agp/agp_i810.c | 58 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/sys/dev/agp/agp_i810.c b/sys/dev/agp/agp_i810.c
index f6b8ab893a7f..0db332bbec92 100644
--- a/sys/dev/agp/agp_i810.c
+++ b/sys/dev/agp/agp_i810.c
@@ -503,6 +503,29 @@ static const struct agp_i810_driver agp_i810_sb_driver = {
 	.chipset_flush = agp_i810_chipset_flush,
 };
 
+static const struct agp_i810_driver agp_i810_hsw_driver = {
+	.chiptype = CHIP_SB,
+	.gen = 7,
+	.busdma_addr_mask_sz = 40,
+	.res_spec = agp_g4x_res_spec,
+	.check_active = agp_sb_check_active,
+	.set_desc = agp_i810_set_desc,
+	.dump_regs = agp_sb_dump_regs,
+	.get_stolen_size = agp_sb_get_stolen_size,
+	.get_gtt_mappable_entries = agp_i915_get_gtt_mappable_entries,
+	.get_gtt_total_entries = agp_sb_get_gtt_total_entries,
+	.install_gatt = agp_g4x_install_gatt,
+	.deinstall_gatt = agp_i830_deinstall_gatt,
+	.write_gtt = agp_sb_write_gtt,
+	.install_gtt_pte = agp_sb_install_gtt_pte,
+	.read_gtt_pte = agp_g4x_read_gtt_pte,
+	.read_gtt_pte_paddr = agp_sb_read_gtt_pte_paddr,
+	.set_aperture = agp_i915_set_aperture,
+	.chipset_flush_setup = agp_i810_chipset_flush_setup,
+	.chipset_flush_teardown = agp_i810_chipset_flush_teardown,
+	.chipset_flush = agp_i810_chipset_flush,
+};
+
 /* For adding new devices, devid is the id of the graphics controller
  * (pci:0:2:0, for example).  The placeholder (usually at pci:0:2:1) for the
  * second head should never be added.  The bridge_offset is the offset to
@@ -738,6 +761,41 @@ static const struct agp_i810_match {
 		.name = "IvyBridge server GT2 IG",
 		.driver = &agp_i810_sb_driver
 	},
+	{
+		.devid = 0x04028086,
+		.name = "Haswell desktop GT1",
+		.driver = &agp_i810_hsw_driver
+	},
+	{
+		.devid = 0x04128086,
+		.name = "Haswell desktop GT2",
+		.driver = &agp_i810_hsw_driver
+	},
+	{
+		.devid = 0x040a8086,
+		.name = "Haswell server GT1",
+		.driver = &agp_i810_hsw_driver
+	},
+	{
+		.devid = 0x041a8086,
+		.name = "Haswell server GT2",
+		.driver = &agp_i810_hsw_driver
+	},
+	{
+		.devid = 0x04068086,
+		.name = "Haswell mobile GT1",
+		.driver = &agp_i810_hsw_driver
+	},
+	{
+		.devid = 0x04168086,
+		.name = "Haswell mobile GT2",
+		.driver = &agp_i810_hsw_driver
+	},
+	{
+		.devid = 0x0c168086,
+		.name = "Haswell SDV",
+		.driver = &agp_i810_hsw_driver
+	},
 	{
 		.devid = 0,
 	}