[4.2.y-ckt stable] Patch "drm/amdgpu: drop topaz support from gmc8 module" 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: drop topaz support from gmc8 module

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

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

>From f6dee5736f46c74e00bf96443906f121b0b97168 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher at amd.com>
Date: Tue, 2 Feb 2016 10:57:30 -0500
Subject: drm/amdgpu: drop topaz support from gmc8 module
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

commit 8878d8548ac7fae43cd6d82579f966eb8825e282 upstream.

topaz is actually gmc7.

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>
[ kamal: backport to 4.2-stable: context; merged gmc_v8_0_hw_init() delta from
  ad32152 "drm/amdgpu: no need to load MC firmware on fiji" ]
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 27 +--------------------------
 1 file changed, 1 insertion(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index e41ff6a..b7ea35b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -42,7 +42,6 @@
 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev);
 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev);

-MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
 MODULE_FIRMWARE("amdgpu/tonga_mc.bin");

 static const u32 golden_settings_tonga_a11[] =
@@ -61,19 +60,6 @@ static const u32 tonga_mgcg_cgcg_init[] =
 	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
 };

-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 const u32 cz_mgcg_cgcg_init[] =
 {
 	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
@@ -82,14 +68,6 @@ static const u32 cz_mgcg_cgcg_init[] =
 static void gmc_v8_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;
 	case CHIP_TONGA:
 		amdgpu_program_register_sequence(adev,
 						 tonga_mgcg_cgcg_init,
@@ -196,9 +174,6 @@ static int gmc_v8_0_init_microcode(struct amdgpu_device *adev)
 	DRM_DEBUG("\n");

 	switch (adev->asic_type) {
-	case CHIP_TOPAZ:
-		chip_name = "topaz";
-		break;
 	case CHIP_TONGA:
 		chip_name = "tonga";
 		break;
@@ -935,7 +910,7 @@ static int gmc_v8_0_hw_init(void *handle)

 	gmc_v8_0_mc_program(adev);

-	if (!(adev->flags & AMDGPU_IS_APU)) {
+	if (adev->asic_type == CHIP_TONGA) {
 		r = gmc_v8_0_mc_load_microcode(adev);
 		if (r) {
 			DRM_ERROR("Failed to load MC firmware!\n");
--
2.7.0