From 5baebf61ba0ce14253a513ac92be661b35a19676 Mon Sep 17 00:00:00 2001 From: Bhawanpreet Lakha Date: Fri, 29 May 2020 15:06:16 -0400 Subject: [PATCH] drm/amd/display: Add DCN3 DMUB DMUB (Display Micro-Controller Unit) Used to read/write regs Signed-off-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dmub/dmub_srv.h | 3 + drivers/gpu/drm/amd/display/dmub/src/Makefile | 3 + drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c | 184 ++++++++++++++++++++++ drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.h | 50 ++++++ drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 15 ++ 5 files changed, 255 insertions(+) create mode 100644 drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c create mode 100644 drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.h diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h index 0ea702e..93d6ff8 100644 --- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h +++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h @@ -88,6 +88,9 @@ enum dmub_asic { DMUB_ASIC_NONE = 0, DMUB_ASIC_DCN20, DMUB_ASIC_DCN21, +#ifdef CONFIG_DRM_AMD_DC_DCN3_0 + DMUB_ASIC_DCN30, +#endif DMUB_ASIC_MAX, }; diff --git a/drivers/gpu/drm/amd/display/dmub/src/Makefile b/drivers/gpu/drm/amd/display/dmub/src/Makefile index e08dfee..bb584f3 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/Makefile +++ b/drivers/gpu/drm/amd/display/dmub/src/Makefile @@ -21,6 +21,9 @@ # DMUB = dmub_srv.o dmub_reg.o dmub_dcn20.o dmub_dcn21.o +ifdef CONFIG_DRM_AMD_DC_DCN3_0 +DMUB += dmub_dcn30.o +endif AMD_DAL_DMUB = $(addprefix $(AMDDALPATH)/dmub/src/,$(DMUB)) diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c new file mode 100644 index 0000000..ba8d0bf --- /dev/null +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c @@ -0,0 +1,184 @@ +/* + * Copyright 2020 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 "../dmub_srv.h" +#include "dmub_reg.h" +#include "dmub_dcn20.h" + +#include "sienna_cichlid_ip_offset.h" +#include "dcn/dcn_3_0_0_offset.h" +#include "dcn/dcn_3_0_0_sh_mask.h" + +#define BASE_INNER(seg) DCN_BASE__INST0_SEG##seg +#define CTX dmub +#define REGS dmub->regs + +/* Registers. */ + +const struct dmub_srv_common_regs dmub_srv_dcn30_regs = { +#define DMUB_SR(reg) REG_OFFSET(reg), + { DMUB_COMMON_REGS() }, +#undef DMUB_SR + +#define DMUB_SF(reg, field) FD_MASK(reg, field), + { DMUB_COMMON_FIELDS() }, +#undef DMUB_SF + +#define DMUB_SF(reg, field) FD_SHIFT(reg, field), + { DMUB_COMMON_FIELDS() }, +#undef DMUB_SF +}; + +/* Shared functions. */ + +static void dmub_dcn30_get_fb_base_offset(struct dmub_srv *dmub, + uint64_t *fb_base, + uint64_t *fb_offset) +{ + uint32_t tmp; + + if (dmub->fb_base || dmub->fb_offset) { + *fb_base = dmub->fb_base; + *fb_offset = dmub->fb_offset; + return; + } + + REG_GET(DCN_VM_FB_LOCATION_BASE, FB_BASE, &tmp); + *fb_base = (uint64_t)tmp << 24; + + REG_GET(DCN_VM_FB_OFFSET, FB_OFFSET, &tmp); + *fb_offset = (uint64_t)tmp << 24; +} + +static inline void dmub_dcn30_translate_addr(const union dmub_addr *addr_in, + uint64_t fb_base, + uint64_t fb_offset, + union dmub_addr *addr_out) +{ + addr_out->quad_part = addr_in->quad_part - fb_base + fb_offset; +} + +void dmub_dcn30_backdoor_load(struct dmub_srv *dmub, + const struct dmub_window *cw0, + const struct dmub_window *cw1) +{ + union dmub_addr offset; + uint64_t fb_base, fb_offset; + + dmub_dcn30_get_fb_base_offset(dmub, &fb_base, &fb_offset); + + REG_UPDATE(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 1); + + /* MEM_CTNL read/write space doesn't exist. */ + + dmub_dcn30_translate_addr(&cw0->offset, fb_base, fb_offset, &offset); + + REG_WRITE(DMCUB_REGION3_CW0_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW0_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW0_BASE_ADDRESS, cw0->region.base); + REG_SET_2(DMCUB_REGION3_CW0_TOP_ADDRESS, 0, + DMCUB_REGION3_CW0_TOP_ADDRESS, cw0->region.top, + DMCUB_REGION3_CW0_ENABLE, 1); + + dmub_dcn30_translate_addr(&cw1->offset, fb_base, fb_offset, &offset); + + REG_WRITE(DMCUB_REGION3_CW1_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW1_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW1_BASE_ADDRESS, cw1->region.base); + REG_SET_2(DMCUB_REGION3_CW1_TOP_ADDRESS, 0, + DMCUB_REGION3_CW1_TOP_ADDRESS, cw1->region.top, + DMCUB_REGION3_CW1_ENABLE, 1); + + REG_UPDATE_2(DMCUB_SEC_CNTL, DMCUB_SEC_RESET, 0, DMCUB_MEM_UNIT_ID, + 0x20); +} + +void dmub_dcn30_setup_windows(struct dmub_srv *dmub, + const struct dmub_window *cw2, + const struct dmub_window *cw3, + const struct dmub_window *cw4, + const struct dmub_window *cw5, + const struct dmub_window *cw6) +{ + union dmub_addr offset; + + /* sienna_cichlid has hardwired virtual addressing for CW2-CW7 */ + + offset = cw2->offset; + + if (cw2->region.base != cw2->region.top) { + REG_WRITE(DMCUB_REGION3_CW2_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, cw2->region.base); + REG_SET_2(DMCUB_REGION3_CW2_TOP_ADDRESS, 0, + DMCUB_REGION3_CW2_TOP_ADDRESS, cw2->region.top, + DMCUB_REGION3_CW2_ENABLE, 1); + } else { + REG_WRITE(DMCUB_REGION3_CW2_OFFSET, 0); + REG_WRITE(DMCUB_REGION3_CW2_OFFSET_HIGH, 0); + REG_WRITE(DMCUB_REGION3_CW2_BASE_ADDRESS, 0); + REG_WRITE(DMCUB_REGION3_CW2_TOP_ADDRESS, 0); + } + + offset = cw3->offset; + + REG_WRITE(DMCUB_REGION3_CW3_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW3_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW3_BASE_ADDRESS, cw3->region.base); + REG_SET_2(DMCUB_REGION3_CW3_TOP_ADDRESS, 0, + DMCUB_REGION3_CW3_TOP_ADDRESS, cw3->region.top, + DMCUB_REGION3_CW3_ENABLE, 1); + + offset = cw4->offset; + + REG_WRITE(DMCUB_REGION4_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION4_OFFSET_HIGH, offset.u.high_part); + REG_SET_2(DMCUB_REGION4_TOP_ADDRESS, 0, DMCUB_REGION4_TOP_ADDRESS, + cw4->region.top - cw4->region.base - 1, DMCUB_REGION4_ENABLE, + 1); + + offset = cw5->offset; + + REG_WRITE(DMCUB_REGION3_CW5_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW5_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW5_BASE_ADDRESS, cw5->region.base); + REG_SET_2(DMCUB_REGION3_CW5_TOP_ADDRESS, 0, + DMCUB_REGION3_CW5_TOP_ADDRESS, cw5->region.top, + DMCUB_REGION3_CW5_ENABLE, 1); + + offset = cw6->offset; + + REG_WRITE(DMCUB_REGION3_CW6_OFFSET, offset.u.low_part); + REG_WRITE(DMCUB_REGION3_CW6_OFFSET_HIGH, offset.u.high_part); + REG_WRITE(DMCUB_REGION3_CW6_BASE_ADDRESS, cw6->region.base); + REG_SET_2(DMCUB_REGION3_CW6_TOP_ADDRESS, 0, + DMCUB_REGION3_CW6_TOP_ADDRESS, cw6->region.top, + DMCUB_REGION3_CW6_ENABLE, 1); +} + +bool dmub_dcn30_is_auto_load_done(struct dmub_srv *dmub) +{ + return (REG_READ(DMCUB_SCRATCH0) > 0); +} diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.h new file mode 100644 index 0000000..4d8f52b --- /dev/null +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.h @@ -0,0 +1,50 @@ +/* + * Copyright 2020 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 + * + */ + +#ifndef _DMUB_DCN30_H_ +#define _DMUB_DCN30_H_ + +#include "dmub_dcn20.h" + +/* Registers. */ + +extern const struct dmub_srv_common_regs dmub_srv_dcn30_regs; + +/* Hardware functions. */ + +void dmub_dcn30_backdoor_load(struct dmub_srv *dmub, + const struct dmub_window *cw0, + const struct dmub_window *cw1); + +void dmub_dcn30_setup_windows(struct dmub_srv *dmub, + const struct dmub_window *cw2, + const struct dmub_window *cw3, + const struct dmub_window *cw4, + const struct dmub_window *cw5, + const struct dmub_window *cw6); + +bool dmub_dcn30_is_auto_load_done(struct dmub_srv *dmub); + +#endif /* _DMUB_DCN30_H_ */ diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index 6bc6580..937f6c3 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -27,6 +27,9 @@ #include "dmub_dcn20.h" #include "dmub_dcn21.h" #include "dmub_cmd.h" +#ifdef CONFIG_DRM_AMD_DC_DCN3_0 +#include "dmub_dcn30.h" +#endif #include "os_types.h" /* * Note: the DMUB service is standalone. No additional headers should be @@ -133,6 +136,9 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) switch (asic) { case DMUB_ASIC_DCN20: case DMUB_ASIC_DCN21: +#ifdef CONFIG_DRM_AMD_DC_DCN3_0 + case DMUB_ASIC_DCN30: +#endif dmub->regs = &dmub_srv_dcn20_regs; funcs->reset = dmub_dcn20_reset; @@ -154,6 +160,15 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) funcs->is_auto_load_done = dmub_dcn21_is_auto_load_done; funcs->is_phy_init = dmub_dcn21_is_phy_init; } +#ifdef CONFIG_DRM_AMD_DC_DCN3_0 + if (asic == DMUB_ASIC_DCN30) { + dmub->regs = &dmub_srv_dcn30_regs; + + funcs->is_auto_load_done = dmub_dcn30_is_auto_load_done; + funcs->backdoor_load = dmub_dcn30_backdoor_load; + funcs->setup_windows = dmub_dcn30_setup_windows; + } +#endif break; default: -- 2.7.4