diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/irq/irq_service.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/irq/irq_service.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/irq/irq_service.c b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c new file mode 100644 index 000000000000..b106513fc2dc --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/irq/irq_service.c @@ -0,0 +1,170 @@ +/* + * Copyright 2012-15 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. + * + * Authors: AMD + * + */ + +#include "dm_services.h" + +#include "include/irq_service_interface.h" +#include "include/logger_interface.h" + +#include "dce110/irq_service_dce110.h" + + +#include "dce80/irq_service_dce80.h" + +#include "dce120/irq_service_dce120.h" + + +#if defined(CONFIG_DRM_AMD_DC_DCN1_0) +#include "dcn10/irq_service_dcn10.h" +#endif + +#include "reg_helper.h" +#include "irq_service.h" + + + +#define CTX \ + irq_service->ctx + +void dal_irq_service_construct( + struct irq_service *irq_service, + struct irq_service_init_data *init_data) +{ + if (!init_data || !init_data->ctx) { + BREAK_TO_DEBUGGER(); + return; + } + + irq_service->ctx = init_data->ctx; +} + +void dal_irq_service_destroy(struct irq_service **irq_service) +{ + if (!irq_service || !*irq_service) { + BREAK_TO_DEBUGGER(); + return; + } + + kfree(*irq_service); + + *irq_service = NULL; +} + +const struct irq_source_info *find_irq_source_info( + struct irq_service *irq_service, + enum dc_irq_source source) +{ + if (source > DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID) + return NULL; + + return &irq_service->info[source]; +} + +void dal_irq_service_set_generic( + struct irq_service *irq_service, + const struct irq_source_info *info, + bool enable) +{ + uint32_t addr = info->enable_reg; + uint32_t value = dm_read_reg(irq_service->ctx, addr); + + value = (value & ~info->enable_mask) | + (info->enable_value[enable ? 0 : 1] & info->enable_mask); + dm_write_reg(irq_service->ctx, addr, value); +} + +bool dal_irq_service_set( + struct irq_service *irq_service, + enum dc_irq_source source, + bool enable) +{ + const struct irq_source_info *info = + find_irq_source_info(irq_service, source); + + if (!info) { + dm_logger_write( + irq_service->ctx->logger, LOG_ERROR, + "%s: cannot find irq info table entry for %d\n", + __func__, + source); + return false; + } + + dal_irq_service_ack(irq_service, source); + + if (info->funcs->set) + return info->funcs->set(irq_service, info, enable); + + dal_irq_service_set_generic(irq_service, info, enable); + + return true; +} + +void dal_irq_service_ack_generic( + struct irq_service *irq_service, + const struct irq_source_info *info) +{ + uint32_t addr = info->ack_reg; + uint32_t value = dm_read_reg(irq_service->ctx, addr); + + value = (value & ~info->ack_mask) | + (info->ack_value & info->ack_mask); + dm_write_reg(irq_service->ctx, addr, value); +} + +bool dal_irq_service_ack( + struct irq_service *irq_service, + enum dc_irq_source source) +{ + const struct irq_source_info *info = + find_irq_source_info(irq_service, source); + + if (!info) { + dm_logger_write( + irq_service->ctx->logger, LOG_ERROR, + "%s: cannot find irq info table entry for %d\n", + __func__, + source); + return false; + } + + if (info->funcs->ack) + return info->funcs->ack(irq_service, info); + + dal_irq_service_ack_generic(irq_service, info); + + return true; +} + +enum dc_irq_source dal_irq_service_to_irq_source( + struct irq_service *irq_service, + uint32_t src_id, + uint32_t ext_id) +{ + return irq_service->funcs->to_dal_irq_source( + irq_service, + src_id, + ext_id); +} |