/*
* 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 "dce/dce_11_0_d.h"
#include "dce/dce_11_0_sh_mask.h"
#include "gmc/gmc_8_2_sh_mask.h"
#include "gmc/gmc_8_2_d.h"
#include "include/logger_interface.h"
#include "dce110_compressor.h"
#define DC_LOGGER \
cp110->base.ctx->logger
#define DCP_REG(reg)\
(reg + cp110->offsets.dcp_offset)
#define DMIF_REG(reg)\
(reg + cp110->offsets.dmif_offset)
static const struct dce110_compressor_reg_offsets reg_offsets[] = {
{
.dcp_offset = (mmDCP0_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
.dmif_offset =
(mmDMIF_PG0_DPG_PIPE_DPM_CONTROL
- mmDMIF_PG0_DPG_PIPE_DPM_CONTROL),
},
{
.dcp_offset = (mmDCP1_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
.dmif_offset =
(mmDMIF_PG1_DPG_PIPE_DPM_CONTROL
- mmDMIF_PG0_DPG_PIPE_DPM_CONTROL),
},
{
.dcp_offset = (mmDCP2_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
.dmif_offset =
(mmDMIF_PG2_DPG_PIPE_DPM_CONTROL
- mmDMIF_PG0_DPG_PIPE_DPM_CONTROL),
}
};
static uint32_t align_to_chunks_number_per_line(uint32_t pixels)
{
return 256 * ((pixels + 255) / 256);
}
static void reset_lb_on_vblank(struct compressor *compressor, uint32_t crtc_inst)
{
uint32_t value;
uint32_t frame_count;
uint32_t status_pos;
uint32_t retry = 0;
struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
cp110->offsets = reg_offsets[crtc_inst];
status_pos = dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_POSITION));
/* Only if CRTC is enabled and counter is moving we wait for one frame. */
if (status_pos != dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_POSITION))) {
/* Resetting LB on VBlank */
value = dm_read_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL));
set_reg_field_value(value, 3, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL);
set_reg_field_value(value, 1, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL2);
dm_write_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL), value);
frame_count = dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_FRAME_COUNT));
for (retry = 10000; retry > 0; retry--) {
if (frame_count != dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_FRAME_COUNT)))
break;
udelay(10);
}
if (!retry)
dm_error("Frame count did not increase for 100ms.\n");
/* Resetting LB on VBlank */
value = dm_read_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL));
set_reg_field_value(value, 2, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL);
set_reg_field_value(value, 0, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL2);
dm_write_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL), value);
}
}
static void wait_for_fbc_state_changed(
struct dce110_compressor *cp110,
bool enabled)
{
uint32_t counter = 0;
uint32_t addr = mmFBC_STATUS;
uint32_t value;
while (counter < 1000) {
value = dm_read_reg(cp110->base.ctx, addr);
if (get_reg_field_value(
value,
FBC_STATUS,
FBC_ENABLE_STATUS) == enabled)
break;
udelay(100);
counter++;
}
if (counter == 1000) {
DC_LOG_WARNING("%s: wait counter exceeded, changes to HW not applied",
__func__);
} else {
DC_LOG_SYNC("FBC status changed to %d", enabled);
}
}
void dce110_compressor_power_up_fbc(struct compressor *compressor)
{
uint32_t value;
uint32_t addr;
addr = mmFBC_CNTL;
value = dm_read_reg(compressor->ctx, addr);
set_reg_field_value(value, 0, FBC_CNTL, FBC_GRPH_COMP_EN);
set_reg_field_value(value, 1, FBC_CNTL, FBC_EN);
set_reg_field_value(value, 2, FBC_CNTL, FBC_COHERENCY_MODE);
if (compressor->options.bits.CLK_GATING_DISABLED == 1) {
/* HW needs to do power measurement comparison. */
set_reg_field_value(
value,
0,
FBC_CNTL,
FBC_COMP_CLK_GATE_EN);
}
dm_write_reg(compressor->ctx, addr, value);
addr = mmFBC_COMP_MODE;
value = dm_read_reg(compressor->ctx, addr);
set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_RLE_EN);
set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_DPCM4_RGB_EN);
set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_IND_EN);
dm_write_reg(compressor->ctx, addr, value);
addr = mmFBC_COMP_CNTL;
value = dm_read_reg(compressor->ctx, addr);
set_reg_field_value(value, 1, FBC_COMP_CNTL, FBC_DEPTH_RGB08_EN);
dm_write_reg(compressor->ctx, addr, value);
/*FBC_MIN_COMPRESSION 0 ==> 2:1 */
/* 1 ==> 4:1 */
/* 2 ==> 8:1 */
/* 0xF ==> 1:1 */
set_reg_field_value(value, 0xF, FBC_COMP_CNTL, FBC_MIN_COMPRESSION);
dm_write_reg(compressor->ctx, addr, value);
compressor->min_compress_ratio = FBC_COMPRESS_RATIO_1TO1;
value = 0;
dm_write_reg(compressor->ctx, mmFBC_IND_LUT0, value);
value = 0xFFFFFF;
dm_write_reg(compressor->ctx, mmFBC_IND_LUT1, value);
}
void dce110_compressor_enable_fbc(
struct compressor *compressor,
struct compr_addr_and_pitch_params *params)
{
struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
if (compressor->options.bits.FBC_SUPPORT &&
(!dce110_compressor_is_fbc_enabled_in_hw(compressor, NULL))) {
uint32_t addr;
uint32_t value, misc_value;
addr = mmFBC_CNTL;
value = dm_read_reg(compressor->ctx, addr);
set_reg_field_value(value, 1, FBC_CNTL, FBC_GRPH_COMP_EN);
/* params->inst is valid HW CRTC instance start from 0 */
set_reg_field_value(
value,
params->inst,
FBC_CNTL, FBC_SRC_SEL);
dm_write_reg(compressor->ctx, addr, value);
/* Keep track of enum controller_id FBC is attached to */
compressor->is_enabled = true;
/* attached_inst is SW CRTC instance start from 1
* 0 = CONTROLLER_ID_UNDEFINED means not attached crtc
*/
compressor->attached_inst = params->inst + CONTROLLER_ID_D0;
/* Toggle it as there is bug in HW */
set_reg_field_value(value, 0, FBC_CNTL, FBC_GRPH_COMP_EN);
dm_write_reg(compressor->ctx, addr, value);
/* FBC usage with scatter & gather for dce110 */
misc_value = dm_read_reg(compressor->ctx, mmFBC_MISC);
set_reg_field_value(misc_value, 1,
FBC_MISC, FBC_INVALIDATE_ON_ERROR);
set_reg_field_value(misc_value, 1,
FBC_MISC, FBC_DECOMPRESS_ERROR_CLEAR);
set_reg_field_value(misc_value, 0x14,
FBC_MISC, FBC_SLOW_REQ_INTERVAL);
dm_write_reg(compressor->ctx, mmFBC_MISC, misc_value);
/* Enable FBC */
set_reg_field_value(value, 1, FBC_CNTL, FBC_GRPH_COMP_EN);
dm_write_reg(compressor->ctx, addr, value);
wait_for_fbc_state_changed(cp110, true);
}
}
void dce110_compressor_disable_fbc(struct compressor *compressor)
{
struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
uint32_t crtc_inst = 0;
if (compressor->options.bits.FBC_SUPPORT) {
if (dce110_compressor_is_fbc_enabled_in_hw(compressor, &crtc_inst)) {
uint32_t reg_data;
/* Turn off compression */
reg_data = dm_read_reg(compressor->ctx, mmFBC_CNTL);
set_reg_field_value(reg_data, 0, FBC_CNTL, FBC_GRPH_COMP_EN);
dm_write_reg(compressor->ctx, mmFBC_CNTL, reg_data);
/* Reset enum controller_id to undefined */
compressor->attached_inst = 0;
compressor->is_enabled = false;
wait_for_fbc_state_changed(cp110, false);
}
/* Sync line buffer which fbc was attached to dce100/110 only */
if (crtc_inst > CONTROLLER_ID_UNDEFINED && crtc_inst < CONTROLLER_ID_D3)
reset_lb_on_vblank(compressor,
crtc_inst - CONTROLLER_ID_D0);
}
}
bool dce110_compressor_is_fbc_enabled_in_hw(
struct compressor *compressor,
uint32_t *inst)
{
/* Check the hardware register */
uint32_t value;
value = dm_read_reg(compressor->ctx, mmFBC_STATUS);
if (get_reg_field_value(value, FBC_STATUS, FBC_ENABLE_STATUS)) {
if (inst != NULL)
*inst = compressor->attached_inst;
return true;
}
value = dm_read_reg(compressor->ctx, mmFBC_MISC);
if (get_reg_field_value(value, FBC_MISC, FBC_STOP_ON_HFLIP_EVENT)) {
value = dm_read_reg(compressor->ctx, mmFBC_CNTL);
if (get_reg_field_value(value, FBC_CNTL, FBC_GRPH_COMP_EN)) {
if (inst != NULL)
*inst =
compressor->attached_inst;
return true;
}
}
return false;
}
void dce110_compressor_program_compressed_surface_address_and_pitch(
struct compressor *compressor,
struct compr_addr_and_pitch_params *params)
{
struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
uint32_t value = 0;
uint32_t fbc_pitch = 0;
uint32_t compressed_surf_address_low_part =
compressor->compr_surface_address.addr.low_part;
cp110->offsets = reg_offsets[params->inst];
/* Clear content first. */
dm_write_reg(
compressor->ctx,
DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS_HIGH),
0);
dm_write_reg(compressor->ctx,
DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS), 0);
/* Write address, HIGH has to be first. */
dm_write_reg(compressor->ctx,
DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS_HIGH),
compressor->compr_surface_address.addr.high_part);
dm_write_reg(compressor->ctx,
DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS),
compressed_surf_address_low_part);
fbc_pitch = align_to_chunks_number_per_line(params->source_view_width);
if (compressor->min_compress_ratio == FBC_COMPRESS_RATIO_1TO1)
fbc_pitch = fbc_pitch / 8;
else
DC_LOG_WARNING("%s: Unexpected DCE11 compression ratio",
__func__);
/* Clear content first. */
dm_write_reg(compressor->ctx, DCP_REG(mmGRPH_COMPRESS_PITCH), 0);
/* Write FBC Pitch. */
set_reg_field_value(
value,
fbc_pitch,
GRPH_COMPRESS_PITCH,
GRPH_COMPRESS_PITCH);
dm_write_reg(compressor->ctx, DCP_REG(mmGRPH_COMPRESS_PITCH), value);
}
void dce110_compressor_set_fbc_invalidation_triggers(
struct compressor *compressor,
uint32_t fbc_trigger)
{
/* Disable region hit event, FBC_MEMORY_REGION_MASK = 0 (bits 16-19)
* for DCE 11 regions cannot be used - does not work with S/G
*/
uint32_t addr = mmFBC_CLIENT_REGION_MASK;
uint32_t value = dm_read_reg(compressor->ctx, addr);
set_reg_field_value(
value,
0,
FBC_CLIENT_REGION_MASK,
FBC_MEMORY_REGION_MASK);
dm_write_reg(compressor->ctx, addr, value);
/* Setup events when to clear all CSM entries (effectively marking
* current compressed data invalid)
* For DCE 11 CSM metadata 11111 means - "Not Compressed"
* Used as the initial value of the metadata sent to the compressor
* after invalidation, to indicate that the compressor should attempt
* to compress all chunks on the current pass. Also used when the chunk
* is not successfully written to memory.
* When this CSM value is detected, FBC reads from the uncompressed
* buffer. Set events according to passed in value, these events are
* valid for DCE11:
* - bit 0 - display register updated
* - bit 28 - memory write from any client except from MCIF
* - bit 29 - CG static screen signal is inactive
* In addition, DCE11.1 also needs to set new DCE11.1 specific events
* that are used to trigger invalidation on certain register changes,
* for example enabling of Alpha Compression may trigger invalidation of
* FBC once bit is set. These events are as follows:
* - Bit 2 - FBC_GRPH_COMP_EN register updated
* - Bit 3 - FBC_SRC_SEL register updated
* - Bit 4 - FBC_MIN_COMPRESSION register updated
* - Bit 5 - FBC_ALPHA_COMP_EN register updated
* - Bit 6 - FBC_ZERO_ALPHA_CHUNK_SKIP_EN register updated
* - Bit 7 - FBC_FORCE_COPY_TO_COMP_BUF register updated
*/
addr = mmFBC_IDLE_FORCE_CLEAR_MASK;
value = dm_read_reg(compressor->ctx, addr);
set_reg_field_value(
value,
fbc_trigger,
FBC_IDLE_FORCE_CLEAR_MASK,
FBC_IDLE_FORCE_CLEAR_MASK);
dm_write_reg(compressor->ctx, addr, value);
}
struct compressor *dce110_compressor_create(struct dc_context *ctx)
{
struct dce110_compressor *cp110 =
kzalloc(sizeof(struct dce110_compressor), GFP_KERNEL);
if (!cp110)
return NULL;
dce110_compressor_construct(cp110, ctx);
return &cp110->base;
}
void dce110_compressor_destroy(struct compressor **compressor)
{
kfree(TO_DCE110_COMPRESSOR(*compressor));
*compressor = NULL;
}
void get_max_support_fbc_buffersize(unsigned int *max_x, unsigned int *max_y)
{
*max_x = FBC_MAX_X;
*max_y = FBC_MAX_Y;
/* if (m_smallLocalFrameBufferMemory == 1)
* {
* *max_x = FBC_MAX_X_SG;
* *max_y = FBC_MAX_Y_SG;
* }
*/
}
static const struct compressor_funcs dce110_compressor_funcs = {
.power_up_fbc = dce110_compressor_power_up_fbc,
.enable_fbc = dce110_compressor_enable_fbc,
.disable_fbc = dce110_compressor_disable_fbc,
.set_fbc_invalidation_triggers = dce110_compressor_set_fbc_invalidation_triggers,
.surface_address_and_pitch = dce110_compressor_program_compressed_surface_address_and_pitch,
.is_fbc_enabled_in_hw = dce110_compressor_is_fbc_enabled_in_hw
};
void dce110_compressor_construct(struct dce110_compressor *compressor,
struct dc_context *ctx)
{
compressor->base.options.raw = 0;
compressor->base.options.bits.FBC_SUPPORT = true;
/* for dce 11 always use one dram channel for lpt */
compressor->base.lpt_channels_num = 1;
compressor->base.options.bits.DUMMY_BACKEND = false;
/*
* check if this system has more than 1 dram channel; if only 1 then lpt
* should not be supported
*/
compressor->base.options.bits.CLK_GATING_DISABLED = false;
compressor->base.ctx = ctx;
compressor->base.embedded_panel_h_size = 0;
compressor->base.embedded_panel_v_size = 0;
compressor->base.memory_bus_width = ctx->asic_id.vram_width;
compressor->base.allocated_size = 0;
compressor->base.preferred_requested_size = 0;
compressor->base.min_compress_ratio = FBC_COMPRESS_RATIO_INVALID;
compressor->base.banks_num = 0;
compressor->base.raw_size = 0;
compressor->base.channel_interleave_size = 0;
compressor->base.dram_channels_num = 0;
compressor->base.lpt_channels_num = 0;
compressor->base.attached_inst = CONTROLLER_ID_UNDEFINED;
compressor->base.is_enabled = false;
compressor->base.funcs = &dce110_compressor_funcs;
}
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