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drm/amdgpu: add set_reg_remap callback for NBIO 7.2

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This will be used to consolidate the register remap offset
configuration and fix  HDP flushes on systems non-4K pages.

Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2024-04-14 13:51:37 -04:00
parent 42ad8ac6bd
commit cacbbfbd24
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/amd/amdgpu/nbio_v7_2.c
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@@ -408,6 +408,21 @@ static void nbio_v7_2_init_registers(struct amdgpu_device *adev)
regBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
}
#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
static void nbio_v7_2_set_reg_remap(struct amdgpu_device *adev)
{
if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) {
adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
} else {
adev->rmmio_remap.reg_offset =
SOC15_REG_OFFSET(NBIO, 0,
regBIF_BX_PF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
adev->rmmio_remap.bus_addr = 0;
}
}
const struct amdgpu_nbio_funcs nbio_v7_2_funcs = {
.get_hdp_flush_req_offset = nbio_v7_2_get_hdp_flush_req_offset,
.get_hdp_flush_done_offset = nbio_v7_2_get_hdp_flush_done_offset,
@@ -429,4 +444,5 @@ const struct amdgpu_nbio_funcs nbio_v7_2_funcs = {
.ih_control = nbio_v7_2_ih_control,
.init_registers = nbio_v7_2_init_registers,
.remap_hdp_registers = nbio_v7_2_remap_hdp_registers,
.set_reg_remap = nbio_v7_2_set_reg_remap,
};