mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-07 05:45:24 +00:00
20905edb24
IP instance map init function can be an common function instead of operation on different ASIC. V2: Create amdgpu_ip.[ch] file for ip related functions. Signed-off-by: Likun Gao <Likun.Gao@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
|
|
* Copyright 2025 Advanced Micro Devices, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include "amdgpu.h"
|
|
#include "amdgpu_ip.h"
|
|
|
|
static int8_t amdgpu_logical_to_dev_inst(struct amdgpu_device *adev,
|
|
enum amd_hw_ip_block_type block,
|
|
int8_t inst)
|
|
{
|
|
int8_t dev_inst;
|
|
|
|
switch (block) {
|
|
case GC_HWIP:
|
|
case SDMA0_HWIP:
|
|
/* Both JPEG and VCN as JPEG is only alias of VCN */
|
|
case VCN_HWIP:
|
|
dev_inst = adev->ip_map.dev_inst[block][inst];
|
|
break;
|
|
default:
|
|
/* For rest of the IPs, no look up required.
|
|
* Assume 'logical instance == physical instance' for all configs. */
|
|
dev_inst = inst;
|
|
break;
|
|
}
|
|
|
|
return dev_inst;
|
|
}
|
|
|
|
static uint32_t amdgpu_logical_to_dev_mask(struct amdgpu_device *adev,
|
|
enum amd_hw_ip_block_type block,
|
|
uint32_t mask)
|
|
{
|
|
uint32_t dev_mask = 0;
|
|
int8_t log_inst, dev_inst;
|
|
|
|
while (mask) {
|
|
log_inst = ffs(mask) - 1;
|
|
dev_inst = amdgpu_logical_to_dev_inst(adev, block, log_inst);
|
|
dev_mask |= (1 << dev_inst);
|
|
mask &= ~(1 << log_inst);
|
|
}
|
|
|
|
return dev_mask;
|
|
}
|
|
|
|
static void amdgpu_populate_ip_map(struct amdgpu_device *adev,
|
|
enum amd_hw_ip_block_type ip_block,
|
|
uint32_t inst_mask)
|
|
{
|
|
int l = 0, i;
|
|
|
|
while (inst_mask) {
|
|
i = ffs(inst_mask) - 1;
|
|
adev->ip_map.dev_inst[ip_block][l++] = i;
|
|
inst_mask &= ~(1 << i);
|
|
}
|
|
for (; l < HWIP_MAX_INSTANCE; l++)
|
|
adev->ip_map.dev_inst[ip_block][l] = -1;
|
|
}
|
|
|
|
void amdgpu_ip_map_init(struct amdgpu_device *adev)
|
|
{
|
|
u32 ip_map[][2] = {
|
|
{ GC_HWIP, adev->gfx.xcc_mask },
|
|
{ SDMA0_HWIP, adev->sdma.sdma_mask },
|
|
{ VCN_HWIP, adev->vcn.inst_mask },
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ip_map); ++i)
|
|
amdgpu_populate_ip_map(adev, ip_map[i][0], ip_map[i][1]);
|
|
|
|
adev->ip_map.logical_to_dev_inst = amdgpu_logical_to_dev_inst;
|
|
adev->ip_map.logical_to_dev_mask = amdgpu_logical_to_dev_mask;
|
|
}
|