[4.2.y-ckt stable] Patch "drm/amdgpu: pull topaz gmc bits into gmc_v7" has been added to the 4.2.y-ckt tree

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    drm/amdgpu: pull topaz gmc bits into gmc_v7

to the linux-4.2.y-queue branch of the 4.2.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-4.2.y-queue

This patch is scheduled to be released in version 4.2.8-ckt5.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 4.2.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

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>From 98b08ea7153dd756490ec2a6adff095a38b0ef2d Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher at amd.com>
Date: Tue, 2 Feb 2016 10:56:15 -0500
Subject: drm/amdgpu: pull topaz gmc bits into gmc_v7
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 72b459c8f716ef03a8a0c78078547ce64d8d29a2 upstream.

Add the topaz golden settings into the gmc7 module.

Reviewed-by: Ken Wang <Qingqing.Wang at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 35 +++++++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 9557571..9bab1d6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -44,8 +44,37 @@ MODULE_FIRMWARE("radeon/boniare_mc.bin");
 MODULE_FIRMWARE("radeon/hawaii_mc.bin");
 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");

+static const u32 golden_settings_iceland_a11[] =
+{
+	mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
+	mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
+	mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
+	mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
+};
+
+static const u32 iceland_mgcg_cgcg_init[] =
+{
+	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
+};
+
+static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
+{
+	switch (adev->asic_type) {
+	case CHIP_TOPAZ:
+		amdgpu_program_register_sequence(adev,
+						 iceland_mgcg_cgcg_init,
+						 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
+		amdgpu_program_register_sequence(adev,
+						 golden_settings_iceland_a11,
+						 (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
+		break;
+	default:
+		break;
+	}
+}
+
 /**
- * gmc8_mc_wait_for_idle - wait for MC idle callback.
+ * gmc7_mc_wait_for_idle - wait for MC idle callback.
  *
  * @adev: amdgpu_device pointer
  *
@@ -142,7 +171,7 @@ static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 	default: BUG();
 	}

-	if(adev->asic_type == CHIP_TOPAZ)
+	if (adev->asic_type == CHIP_TOPAZ)
 		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 	else
 		snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
@@ -964,6 +993,8 @@ static int gmc_v7_0_hw_init(void *handle)
 	int r;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;

+	gmc_v7_0_init_golden_registers(adev);
+
 	gmc_v7_0_mc_program(adev);

 	if (!(adev->flags & AMDGPU_IS_APU)) {
--
2.7.0