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/*
* Copyright 2015 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 <linux/pci.h>
#include "amdgpu.h"
#include "cgs_linux.h"
struct amdgpu_cgs_device {
struct cgs_device base;
struct amdgpu_device *adev;
};
#define CGS_FUNC_ADEV \
struct amdgpu_device *adev = \
((struct amdgpu_cgs_device *)cgs_device)->adev
static int amdgpu_cgs_gpu_mem_info(void *cgs_device, enum cgs_gpu_mem_type type,
uint64_t *mc_start, uint64_t *mc_size,
uint64_t *mem_size)
{
return 0;
}
static int amdgpu_cgs_gmap_kmem(void *cgs_device, void *kmem,
uint64_t size,
uint64_t min_offset, uint64_t max_offset,
cgs_handle_t *kmem_handle, uint64_t *mcaddr)
{
return 0;
}
static int amdgpu_cgs_gunmap_kmem(void *cgs_device, cgs_handle_t kmem_handle)
{
return 0;
}
static int amdgpu_cgs_alloc_gpu_mem(void *cgs_device,
enum cgs_gpu_mem_type type,
uint64_t size, uint64_t align,
uint64_t min_offset, uint64_t max_offset,
cgs_handle_t *handle)
{
return 0;
}
static int amdgpu_cgs_import_gpu_mem(void *cgs_device, int dmabuf_fd,
cgs_handle_t *handle)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_free_gpu_mem(void *cgs_device, cgs_handle_t handle)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_gmap_gpu_mem(void *cgs_device, cgs_handle_t handle,
uint64_t *mcaddr)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_gunmap_gpu_mem(void *cgs_device, cgs_handle_t handle)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_kmap_gpu_mem(void *cgs_device, cgs_handle_t handle,
void **map)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_kunmap_gpu_mem(void *cgs_device, cgs_handle_t handle)
{
/* TODO */
return 0;
}
static uint32_t amdgpu_cgs_read_register(void *cgs_device, unsigned offset)
{
CGS_FUNC_ADEV;
return RREG32(offset);
}
static void amdgpu_cgs_write_register(void *cgs_device, unsigned offset,
uint32_t value)
{
CGS_FUNC_ADEV;
WREG32(offset, value);
}
static uint32_t amdgpu_cgs_read_ind_register(void *cgs_device,
enum cgs_ind_reg space,
unsigned index)
{
CGS_FUNC_ADEV;
switch (space) {
case CGS_IND_REG__MMIO:
return RREG32_IDX(index);
case CGS_IND_REG__PCIE:
return RREG32_PCIE(index);
case CGS_IND_REG__SMC:
return RREG32_SMC(index);
case CGS_IND_REG__UVD_CTX:
return RREG32_UVD_CTX(index);
case CGS_IND_REG__DIDT:
return RREG32_DIDT(index);
case CGS_IND_REG__AUDIO_ENDPT:
DRM_ERROR("audio endpt register access not implemented.\n");
return 0;
}
WARN(1, "Invalid indirect register space");
return 0;
}
static void amdgpu_cgs_write_ind_register(void *cgs_device,
enum cgs_ind_reg space,
unsigned index, uint32_t value)
{
CGS_FUNC_ADEV;
switch (space) {
case CGS_IND_REG__MMIO:
return WREG32_IDX(index, value);
case CGS_IND_REG__PCIE:
return WREG32_PCIE(index, value);
case CGS_IND_REG__SMC:
return WREG32_SMC(index, value);
case CGS_IND_REG__UVD_CTX:
return WREG32_UVD_CTX(index, value);
case CGS_IND_REG__DIDT:
return WREG32_DIDT(index, value);
case CGS_IND_REG__AUDIO_ENDPT:
DRM_ERROR("audio endpt register access not implemented.\n");
return;
}
WARN(1, "Invalid indirect register space");
}
static uint8_t amdgpu_cgs_read_pci_config_byte(void *cgs_device, unsigned addr)
{
CGS_FUNC_ADEV;
uint8_t val;
int ret = pci_read_config_byte(adev->pdev, addr, &val);
if (WARN(ret, "pci_read_config_byte error"))
return 0;
return val;
}
static uint16_t amdgpu_cgs_read_pci_config_word(void *cgs_device, unsigned addr)
{
CGS_FUNC_ADEV;
uint16_t val;
int ret = pci_read_config_word(adev->pdev, addr, &val);
if (WARN(ret, "pci_read_config_word error"))
return 0;
return val;
}
static uint32_t amdgpu_cgs_read_pci_config_dword(void *cgs_device,
unsigned addr)
{
CGS_FUNC_ADEV;
uint32_t val;
int ret = pci_read_config_dword(adev->pdev, addr, &val);
if (WARN(ret, "pci_read_config_dword error"))
return 0;
return val;
}
static void amdgpu_cgs_write_pci_config_byte(void *cgs_device, unsigned addr,
uint8_t value)
{
CGS_FUNC_ADEV;
int ret = pci_write_config_byte(adev->pdev, addr, value);
WARN(ret, "pci_write_config_byte error");
}
static void amdgpu_cgs_write_pci_config_word(void *cgs_device, unsigned addr,
uint16_t value)
{
CGS_FUNC_ADEV;
int ret = pci_write_config_word(adev->pdev, addr, value);
WARN(ret, "pci_write_config_word error");
}
static void amdgpu_cgs_write_pci_config_dword(void *cgs_device, unsigned addr,
uint32_t value)
{
CGS_FUNC_ADEV;
int ret = pci_write_config_dword(adev->pdev, addr, value);
WARN(ret, "pci_write_config_dword error");
}
static const void *amdgpu_cgs_atom_get_data_table(void *cgs_device,
unsigned table, uint16_t *size,
uint8_t *frev, uint8_t *crev)
{
/* TODO */
return NULL;
}
static int amdgpu_cgs_atom_get_cmd_table_revs(void *cgs_device, unsigned table,
uint8_t *frev, uint8_t *crev)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_atom_exec_cmd_table(void *cgs_device, unsigned table,
void *args)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_create_pm_request(void *cgs_device, cgs_handle_t *request)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_destroy_pm_request(void *cgs_device, cgs_handle_t request)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_set_pm_request(void *cgs_device, cgs_handle_t request,
int active)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_pm_request_clock(void *cgs_device, cgs_handle_t request,
enum cgs_clock clock, unsigned freq)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_pm_request_engine(void *cgs_device, cgs_handle_t request,
enum cgs_engine engine, int powered)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_pm_query_clock_limits(void *cgs_device,
enum cgs_clock clock,
struct cgs_clock_limits *limits)
{
/* TODO */
return 0;
}
static int amdgpu_cgs_set_camera_voltages(void *cgs_device, uint32_t mask,
const uint32_t *voltages)
{
DRM_ERROR("not implemented");
return -EPERM;
}
struct cgs_irq_params {
unsigned src_id;
cgs_irq_source_set_func_t set;
cgs_irq_handler_func_t handler;
void *private_data;
};
static int cgs_set_irq_state(struct amdgpu_device *adev,
struct amdgpu_irq_src *src,
unsigned type,
enum amdgpu_interrupt_state state)
{
struct cgs_irq_params *irq_params =
(struct cgs_irq_params *)src->data;
if (!irq_params)
return -EINVAL;
if (!irq_params->set)
return -EINVAL;
return irq_params->set(irq_params->private_data,
irq_params->src_id,
type,
(int)state);
}
static int cgs_process_irq(struct amdgpu_device *adev,
struct amdgpu_irq_src *source,
struct amdgpu_iv_entry *entry)
{
struct cgs_irq_params *irq_params =
(struct cgs_irq_params *)source->data;
if (!irq_params)
return -EINVAL;
if (!irq_params->handler)
return -EINVAL;
return irq_params->handler(irq_params->private_data,
irq_params->src_id,
entry->iv_entry);
}
static const struct amdgpu_irq_src_funcs cgs_irq_funcs = {
.set = cgs_set_irq_state,
.process = cgs_process_irq,
};
static int amdgpu_cgs_add_irq_source(void *cgs_device, unsigned src_id,
unsigned num_types,
cgs_irq_source_set_func_t set,
cgs_irq_handler_func_t handler,
void *private_data)
{
CGS_FUNC_ADEV;
int ret = 0;
struct cgs_irq_params *irq_params;
struct amdgpu_irq_src *source =
kzalloc(sizeof(struct amdgpu_irq_src), GFP_KERNEL);
if (!source)
return -ENOMEM;
irq_params =
kzalloc(sizeof(struct cgs_irq_params), GFP_KERNEL);
if (!irq_params) {
kfree(source);
return -ENOMEM;
}
source->num_types = num_types;
source->funcs = &cgs_irq_funcs;
irq_params->src_id = src_id;
irq_params->set = set;
irq_params->handler = handler;
irq_params->private_data = private_data;
source->data = (void *)irq_params;
ret = amdgpu_irq_add_id(adev, src_id, source);
if (ret) {
kfree(irq_params);
kfree(source);
}
return ret;
}
static int amdgpu_cgs_irq_get(void *cgs_device, unsigned src_id, unsigned type)
{
CGS_FUNC_ADEV;
return amdgpu_irq_get(adev, adev->irq.sources[src_id], type);
}
static int amdgpu_cgs_irq_put(void *cgs_device, unsigned src_id, unsigned type)
{
CGS_FUNC_ADEV;
return amdgpu_irq_put(adev, adev->irq.sources[src_id], type);
}
static const struct cgs_ops amdgpu_cgs_ops = {
amdgpu_cgs_gpu_mem_info,
amdgpu_cgs_gmap_kmem,
amdgpu_cgs_gunmap_kmem,
amdgpu_cgs_alloc_gpu_mem,
amdgpu_cgs_free_gpu_mem,
amdgpu_cgs_gmap_gpu_mem,
amdgpu_cgs_gunmap_gpu_mem,
amdgpu_cgs_kmap_gpu_mem,
amdgpu_cgs_kunmap_gpu_mem,
amdgpu_cgs_read_register,
amdgpu_cgs_write_register,
amdgpu_cgs_read_ind_register,
amdgpu_cgs_write_ind_register,
amdgpu_cgs_read_pci_config_byte,
amdgpu_cgs_read_pci_config_word,
amdgpu_cgs_read_pci_config_dword,
amdgpu_cgs_write_pci_config_byte,
amdgpu_cgs_write_pci_config_word,
amdgpu_cgs_write_pci_config_dword,
amdgpu_cgs_atom_get_data_table,
amdgpu_cgs_atom_get_cmd_table_revs,
amdgpu_cgs_atom_exec_cmd_table,
amdgpu_cgs_create_pm_request,
amdgpu_cgs_destroy_pm_request,
amdgpu_cgs_set_pm_request,
amdgpu_cgs_pm_request_clock,
amdgpu_cgs_pm_request_engine,
amdgpu_cgs_pm_query_clock_limits,
amdgpu_cgs_set_camera_voltages
};
static const struct cgs_os_ops amdgpu_cgs_os_ops = {
amdgpu_cgs_import_gpu_mem,
amdgpu_cgs_add_irq_source,
amdgpu_cgs_irq_get,
amdgpu_cgs_irq_put
};
void *amdgpu_cgs_create_device(struct amdgpu_device *adev)
{
struct amdgpu_cgs_device *cgs_device =
kmalloc(sizeof(*cgs_device), GFP_KERNEL);
if (!cgs_device) {
DRM_ERROR("Couldn't allocate CGS device structure\n");
return NULL;
}
cgs_device->base.ops = &amdgpu_cgs_ops;
cgs_device->base.os_ops = &amdgpu_cgs_os_ops;
cgs_device->adev = adev;
return cgs_device;
}
void amdgpu_cgs_destroy_device(void *cgs_device)
{
kfree(cgs_device);
}
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