Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amdgpu: add set_reg_remap callback for NBIO 7.11
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>
+15
+15
drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
+15
drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c
···
352
352
*flags |= AMD_CG_SUPPORT_BIF_LS;
353
353
}
354
354
355
+
#define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
356
+
357
+
static void nbio_v7_11_set_reg_remap(struct amdgpu_device *adev)
358
+
{
359
+
if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) {
360
+
adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
361
+
adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
362
+
} else {
363
+
adev->rmmio_remap.reg_offset =
364
+
SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
365
+
adev->rmmio_remap.bus_addr = 0;
366
+
}
367
+
}
368
+
355
369
const struct amdgpu_nbio_funcs nbio_v7_11_funcs = {
356
370
.get_hdp_flush_req_offset = nbio_v7_11_get_hdp_flush_req_offset,
357
371
.get_hdp_flush_done_offset = nbio_v7_11_get_hdp_flush_done_offset,
···
388
374
.ih_control = nbio_v7_11_ih_control,
389
375
.init_registers = nbio_v7_11_init_registers,
390
376
.remap_hdp_registers = nbio_v7_11_remap_hdp_registers,
377
+
.set_reg_remap = nbio_v7_11_set_reg_remap,
391
378
};