linux-kernel - [PATCH 4.2.y-ckt 068/273] drm/amdgpu: pull topaz gmc bits into gmc

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Message-Id: <1457391064-6660-69-git-send-email-kamal@canonical.com>
Date:	Mon,  7 Mar 2016 14:47:39 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Alex Deucher <alexander.deucher@....com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 4.2.y-ckt 068/273] drm/amdgpu: pull topaz gmc bits into gmc_v7

4.2.8-ckt5 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Alex Deucher <alexander.deucher@....com>

commit 72b459c8f716ef03a8a0c78078547ce64d8d29a2 upstream.

Add the topaz golden settings into the gmc7 module.

Reviewed-by: Ken Wang <Qingqing.Wang@....com>
Reviewed-by: Christian König <christian.koenig@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Kamal Mostafa <kamal@...onical.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