diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/Makefile | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c | 123 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_hw_types.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/vmid.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/vm_helper.h | 16 |
9 files changed, 143 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/Makefile b/drivers/gpu/drm/amd/display/dc/Makefile index f581d5394caa..6da4e4f844b2 100644 --- a/drivers/gpu/drm/amd/display/dc/Makefile +++ b/drivers/gpu/drm/amd/display/dc/Makefile @@ -41,8 +41,8 @@ AMD_DC = $(addsuffix /Makefile, $(addprefix $(FULL_AMD_DISPLAY_PATH)/dc/,$(DC_LI include $(AMD_DC) DISPLAY_CORE = dc.o dc_link.o dc_resource.o dc_hw_sequencer.o dc_sink.o \ -dc_surface.o dc_link_hwss.o dc_link_dp.o dc_link_ddc.o dc_debug.o dc_stream.o - +dc_surface.o dc_link_hwss.o dc_link_dp.o dc_link_ddc.o dc_debug.o dc_stream.o \ +dc_vm_helper.o AMD_DISPLAY_CORE = $(addprefix $(AMDDALPATH)/dc/core/,$(DISPLAY_CORE)) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c b/drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c new file mode 100644 index 000000000000..6ce87b682a32 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c @@ -0,0 +1,123 @@ +/* + * Copyright 2018 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 "vm_helper.h" + +static void mark_vmid_used(struct vm_helper *vm_helper, unsigned int pos, uint8_t hubp_idx) +{ + struct vmid_usage vmids = vm_helper->hubp_vmid_usage[hubp_idx]; + + vmids.vmid_usage[0] = vmids.vmid_usage[1]; + vmids.vmid_usage[1] = 1 << pos; +} + +static void add_ptb_to_table(struct vm_helper *vm_helper, unsigned int vmid, uint64_t ptb) +{ + vm_helper->ptb_assigned_to_vmid[vmid] = ptb; + vm_helper->num_vmids_available--; +} + +static void clear_entry_from_vmid_table(struct vm_helper *vm_helper, unsigned int vmid) +{ + vm_helper->ptb_assigned_to_vmid[vmid] = 0; + vm_helper->num_vmids_available++; +} + +static void evict_vmids(struct vm_helper *vm_helper) +{ + int i; + uint16_t ord = 0; + + for (i = 0; i < vm_helper->num_vmid; i++) + ord |= vm_helper->hubp_vmid_usage[i].vmid_usage[0] | vm_helper->hubp_vmid_usage[i].vmid_usage[1]; + + // At this point any positions with value 0 are unused vmids, evict them + for (i = 1; i < vm_helper->num_vmid; i++) { + if (ord & (1u << i)) + clear_entry_from_vmid_table(vm_helper, i); + } +} + +// Return value of -1 indicates vmid table unitialized or ptb dne in the table +static int get_existing_vmid_for_ptb(struct vm_helper *vm_helper, uint64_t ptb) +{ + int i; + + for (i = 0; i < vm_helper->num_vmid; i++) { + if (vm_helper->ptb_assigned_to_vmid[i] == ptb) + return i; + } + + return -1; +} + +// Expected to be called only when there's an available vmid +static int get_next_available_vmid(struct vm_helper *vm_helper) +{ + int i; + + for (i = 1; i < vm_helper->num_vmid; i++) { + if (vm_helper->ptb_assigned_to_vmid[i] == 0) + return i; + } + + return -1; +} + +uint8_t get_vmid_for_ptb(struct vm_helper *vm_helper, int64_t ptb, uint8_t hubp_idx) +{ + unsigned int vmid = 0; + int vmid_exists = -1; + + // Physical address gets vmid 0 + if (ptb == 0) + return 0; + + vmid_exists = get_existing_vmid_for_ptb(vm_helper, ptb); + + if (vmid_exists != -1) { + mark_vmid_used(vm_helper, vmid_exists, hubp_idx); + vmid = vmid_exists; + } else { + if (vm_helper->num_vmids_available == 0) + evict_vmids(vm_helper); + + vmid = get_next_available_vmid(vm_helper); + mark_vmid_used(vm_helper, vmid, hubp_idx); + add_ptb_to_table(vm_helper, vmid, ptb); + } + + return vmid; +} + +void init_vm_helper(struct vm_helper *vm_helper, unsigned int num_vmid, unsigned int num_hubp) +{ + vm_helper->num_vmid = num_vmid; + vm_helper->num_hubp = num_hubp; + vm_helper->num_vmids_available = num_vmid - 1; + + memset(vm_helper->hubp_vmid_usage, 0, sizeof(vm_helper->hubp_vmid_usage[0]) * MAX_HUBP); + memset(vm_helper->ptb_assigned_to_vmid, 0, sizeof(vm_helper->ptb_assigned_to_vmid[0]) * MAX_VMID); +} diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index ffd1fe5df99e..c4bd9216dd61 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -458,7 +458,6 @@ struct dc_callback_init { }; struct dc *dc_create(const struct dc_init_data *init_params); -int dc_get_vmid_use_vector(struct dc *dc); void dc_init_callbacks(struct dc *dc, const struct dc_callback_init *init_params); void dc_destroy(struct dc **dc); diff --git a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h index 821d4f260764..d9999ff915df 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_hw_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_hw_types.h @@ -99,8 +99,6 @@ struct dc_plane_address { }; union large_integer page_table_base; - - uint8_t vmid; }; struct dc_size { diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c index 4cb7fe8b3903..aea2b63db137 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c @@ -317,7 +317,8 @@ void hubp1_program_pixel_format( bool hubp1_program_surface_flip_and_addr( struct hubp *hubp, const struct dc_plane_address *address, - bool flip_immediate) + bool flip_immediate, + uint8_t vmid) { struct dcn10_hubp *hubp1 = TO_DCN10_HUBP(hubp); diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 316e0da5d6bd..0921858675e7 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -1237,7 +1237,8 @@ static void dcn10_update_plane_addr(const struct dc *dc, struct pipe_ctx *pipe_c pipe_ctx->plane_res.hubp->funcs->hubp_program_surface_flip_and_addr( pipe_ctx->plane_res.hubp, &plane_state->address, - plane_state->flip_immediate); + plane_state->flip_immediate, + 0); plane_state->status.requested_address = plane_state->address; diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h index e4909d21b9f2..5420ad2da96f 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h @@ -80,7 +80,8 @@ struct hubp_funcs { bool (*hubp_program_surface_flip_and_addr)( struct hubp *hubp, const struct dc_plane_address *address, - bool flip_immediate); + bool flip_immediate, + uint8_t vmid); void (*hubp_program_pte_vm)( struct hubp *hubp, diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/vmid.h b/drivers/gpu/drm/amd/display/dc/inc/hw/vmid.h index 76de0e4284e0..037beb0a2a27 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/vmid.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/vmid.h @@ -44,7 +44,6 @@ struct dcn_vmid_page_table_config { uint64_t page_table_end_addr; enum dcn_hubbub_page_table_depth depth; enum dcn_hubbub_page_table_block_size block_size; - uint64_t page_table_base_addr; }; #endif /* DAL_DC_INC_HW_VMID_H_ */ diff --git a/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h b/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h index 8bfcef0a3675..193407f76a80 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h +++ b/drivers/gpu/drm/amd/display/dc/inc/vm_helper.h @@ -28,21 +28,29 @@ #include "dc_types.h" +#define MAX_VMID 16 #define MAX_HUBP 6 struct vmid_usage { - int vmid_usage[2]; + uint16_t vmid_usage[2]; }; struct vm_helper { unsigned int num_vmid; + unsigned int num_hubp; + unsigned int num_vmids_available; + uint64_t ptb_assigned_to_vmid[MAX_VMID]; struct vmid_usage hubp_vmid_usage[MAX_HUBP]; }; -void vm_helper_mark_vmid_used(struct vm_helper *vm_helper, unsigned int pos, uint8_t hubp_idx); +uint8_t get_vmid_for_ptb( + struct vm_helper *vm_helper, + int64_t ptb, + uint8_t pipe_idx); -void vm_helper_init( +void init_vm_helper( struct vm_helper *vm_helper, - unsigned int num_vmid); + unsigned int num_vmid, + unsigned int num_hubp); #endif /* DC_INC_VM_HELPER_H_ */ |