tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amdgpu: add vcn_doorbell_range callback for nbio 7.11
Implement support for setting up the VCN doorbell range for
NBIO 7.11.
Reviewed-by: Lang Yu <lang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
+22
drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
···
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WREG32_PCIE_PORT(reg, doorbell_range);
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}
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static void nbio_v7_11_vcn_doorbell_range(struct amdgpu_device *adev,
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bool use_doorbell,
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int doorbell_index, int instance)
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{
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u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VCN0_DOORBELL_RANGE);
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u32 doorbell_range = RREG32_PCIE_PORT(reg);
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if (use_doorbell) {
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doorbell_range = REG_SET_FIELD(doorbell_range,
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GDC0_BIF_VCN0_DOORBELL_RANGE, OFFSET,
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doorbell_index);
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doorbell_range = REG_SET_FIELD(doorbell_range,
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GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 8);
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} else {
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doorbell_range = REG_SET_FIELD(doorbell_range,
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GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 0);
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}
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WREG32_PCIE_PORT(reg, doorbell_range);
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}
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static void nbio_v7_11_enable_doorbell_aperture(struct amdgpu_device *adev,
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bool enable)
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{
···
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.mc_access_enable = nbio_v7_11_mc_access_enable,
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.get_memsize = nbio_v7_11_get_memsize,
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.sdma_doorbell_range = nbio_v7_11_sdma_doorbell_range,
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.vcn_doorbell_range = nbio_v7_11_vcn_doorbell_range,
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.vpe_doorbell_range = nbio_v7_11_vpe_doorbell_range,
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.enable_doorbell_aperture = nbio_v7_11_enable_doorbell_aperture,
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.enable_doorbell_selfring_aperture = nbio_v7_11_enable_doorbell_selfring_aperture,