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Commit bb16e3b6 authored by Samuel Li's avatar Samuel Li Committed by Alex Deucher
Browse files

drm/amdgpu: add SDMA support for Stoney (v2)



Stoney is SDMA 3.x.

v2: update to latest golden register settings

Signed-off-by: default avatarSamuel Li <samuel.li@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent fa2f9bef
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+28 −0
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ MODULE_FIRMWARE("amdgpu/carrizo_sdma.bin");
MODULE_FIRMWARE("amdgpu/carrizo_sdma1.bin");
MODULE_FIRMWARE("amdgpu/fiji_sdma.bin");
MODULE_FIRMWARE("amdgpu/fiji_sdma1.bin");
MODULE_FIRMWARE("amdgpu/stoney_sdma.bin");

static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
{
@@ -122,6 +123,19 @@ static const u32 cz_mgcg_cgcg_init[] =
	mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
};

static const u32 stoney_golden_settings_a11[] =
{
	mmSDMA0_GFX_IB_CNTL, 0x00000100, 0x00000100,
	mmSDMA0_POWER_CNTL, 0x00000800, 0x0003c800,
	mmSDMA0_RLC0_IB_CNTL, 0x00000100, 0x00000100,
	mmSDMA0_RLC1_IB_CNTL, 0x00000100, 0x00000100,
};

static const u32 stoney_mgcg_cgcg_init[] =
{
	mmSDMA0_CLK_CTRL, 0xffffffff, 0x00000100,
};

/*
 * sDMA - System DMA
 * Starting with CIK, the GPU has new asynchronous
@@ -166,6 +180,14 @@ static void sdma_v3_0_init_golden_registers(struct amdgpu_device *adev)
						 cz_golden_settings_a11,
						 (const u32)ARRAY_SIZE(cz_golden_settings_a11));
		break;
	case CHIP_STONEY:
		amdgpu_program_register_sequence(adev,
						 stoney_mgcg_cgcg_init,
						 (const u32)ARRAY_SIZE(stoney_mgcg_cgcg_init));
		amdgpu_program_register_sequence(adev,
						 stoney_golden_settings_a11,
						 (const u32)ARRAY_SIZE(stoney_golden_settings_a11));
		break;
	default:
		break;
	}
@@ -201,6 +223,9 @@ static int sdma_v3_0_init_microcode(struct amdgpu_device *adev)
	case CHIP_CARRIZO:
		chip_name = "carrizo";
		break;
	case CHIP_STONEY:
		chip_name = "stoney";
		break;
	default: BUG();
	}

@@ -1071,6 +1096,9 @@ static int sdma_v3_0_early_init(void *handle)
	struct amdgpu_device *adev = (struct amdgpu_device *)handle;

	switch (adev->asic_type) {
	case CHIP_STONEY:
		adev->sdma.num_instances = 1;
		break;
	default:
		adev->sdma.num_instances = SDMA_MAX_INSTANCE;
		break;