From: Hersen Wu <[email protected]> [why] AMD Stoney reference board, there are only 2 pipes (not include underlay), and 3 connectors. resource creation, only 2 I2C/AUX engines are created. Within dc_link_aux_transfer, when pin_data_en =2, refer to enengines[ddc_pin->pin_data->en] = NULL. NULL point is referred later causing system crash.
[how] each asic design has fixed number of ddc engines at hw side. for each ddc engine, create its i2x/aux engine at sw side. Change-Id: I5bf6e45756b1e95f246a502219011755c9d465cf Signed-off-by: Hersen Wu <[email protected]> Reviewed-by: Tony Cheng <[email protected]> Acked-by: Bhawanpreet Lakha <[email protected]> --- .../drm/amd/display/dc/dce100/dce100_resource.c | 6 +++++- .../drm/amd/display/dc/dce110/dce110_resource.c | 4 ++++ .../drm/amd/display/dc/dce112/dce112_resource.c | 5 +++++ .../drm/amd/display/dc/dce120/dce120_resource.c | 9 ++++++-- .../gpu/drm/amd/display/dc/dce80/dce80_resource.c | 25 ++++++++++++++++++++++ .../gpu/drm/amd/display/dc/dcn10/dcn10_resource.c | 7 ++++-- drivers/gpu/drm/amd/display/dc/inc/resource.h | 1 + 7 files changed, 52 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c b/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c index ae613b025756..b1cc38827f09 100644 --- a/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c @@ -372,7 +372,8 @@ static const struct resource_caps res_cap = { .num_timing_generator = 6, .num_audio = 6, .num_stream_encoder = 6, - .num_pll = 3 + .num_pll = 3, + .num_ddc = 6, }; #define CTX ctx @@ -1004,6 +1005,9 @@ static bool construct( "DC: failed to create output pixel processor!\n"); goto res_create_fail; } + } + + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { pool->base.engines[i] = dce100_aux_engine_create(ctx, i); if (pool->base.engines[i] == NULL) { BREAK_TO_DEBUGGER(); diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c index 49c5c7037be2..9f44f1cad221 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c @@ -378,6 +378,7 @@ static const struct resource_caps carrizo_resource_cap = { .num_audio = 3, .num_stream_encoder = 3, .num_pll = 2, + .num_ddc = 3, }; static const struct resource_caps stoney_resource_cap = { @@ -386,6 +387,7 @@ static const struct resource_caps stoney_resource_cap = { .num_audio = 3, .num_stream_encoder = 3, .num_pll = 2, + .num_ddc = 3, }; #define CTX ctx @@ -1336,7 +1338,9 @@ static bool construct( "DC: failed to create output pixel processor!\n"); goto res_create_fail; } + } + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { pool->base.engines[i] = dce110_aux_engine_create(ctx, i); if (pool->base.engines[i] == NULL) { BREAK_TO_DEBUGGER(); diff --git a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c index d35dc730e01c..2aa922cdcc58 100644 --- a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c @@ -384,6 +384,7 @@ static const struct resource_caps polaris_10_resource_cap = { .num_audio = 6, .num_stream_encoder = 6, .num_pll = 8, /* why 8? 6 combo PHY PLL + 2 regular PLLs? */ + .num_ddc = 6, }; static const struct resource_caps polaris_11_resource_cap = { @@ -391,6 +392,7 @@ static const struct resource_caps polaris_11_resource_cap = { .num_audio = 5, .num_stream_encoder = 5, .num_pll = 8, /* why 8? 6 combo PHY PLL + 2 regular PLLs? */ + .num_ddc = 5, }; #define CTX ctx @@ -1286,6 +1288,9 @@ static bool construct( "DC:failed to create output pixel processor!\n"); goto res_create_fail; } + } + + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { pool->base.engines[i] = dce112_aux_engine_create(ctx, i); if (pool->base.engines[i] == NULL) { BREAK_TO_DEBUGGER(); diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c index b2fb06f37648..465f68655db2 100644 --- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c @@ -436,6 +436,7 @@ static const struct resource_caps res_cap = { .num_audio = 7, .num_stream_encoder = 6, .num_pll = 6, + .num_ddc = 6, }; static const struct dc_debug_options debug_defaults = { @@ -1062,6 +1063,12 @@ static bool construct( dm_error( "DC: failed to create output pixel processor!\n"); } + + /* check next valid pipe */ + j++; + } + + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { pool->base.engines[i] = dce120_aux_engine_create(ctx, i); if (pool->base.engines[i] == NULL) { BREAK_TO_DEBUGGER(); @@ -1077,8 +1084,6 @@ static bool construct( goto res_create_fail; } pool->base.sw_i2cs[i] = NULL; - /* check next valid pipe */ - j++; } /* valid pipe num */ diff --git a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c index 4eae859e6383..1dc590ccc5f9 100644 --- a/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c @@ -367,6 +367,7 @@ static const struct resource_caps res_cap = { .num_audio = 6, .num_stream_encoder = 6, .num_pll = 3, + .num_ddc = 6, }; static const struct resource_caps res_cap_81 = { @@ -374,6 +375,7 @@ static const struct resource_caps res_cap_81 = { .num_audio = 7, .num_stream_encoder = 7, .num_pll = 3, + .num_ddc = 6, }; static const struct resource_caps res_cap_83 = { @@ -381,6 +383,7 @@ static const struct resource_caps res_cap_83 = { .num_audio = 6, .num_stream_encoder = 6, .num_pll = 2, + .num_ddc = 2, }; static const struct dce_dmcu_registers dmcu_regs = { @@ -992,7 +995,9 @@ static bool dce80_construct( dm_error("DC: failed to create output pixel processor!\n"); goto res_create_fail; } + } + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { pool->base.engines[i] = dce80_aux_engine_create(ctx, i); if (pool->base.engines[i] == NULL) { BREAK_TO_DEBUGGER(); @@ -1200,6 +1205,16 @@ static bool dce81_construct( dm_error("DC: failed to create output pixel processor!\n"); goto res_create_fail; } + } + + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { + pool->base.engines[i] = dce80_aux_engine_create(ctx, i); + if (pool->base.engines[i] == NULL) { + BREAK_TO_DEBUGGER(); + dm_error( + "DC:failed to create aux engine!!\n"); + goto res_create_fail; + } pool->base.hw_i2cs[i] = dce80_i2c_hw_create(ctx, i); if (pool->base.hw_i2cs[i] == NULL) { BREAK_TO_DEBUGGER(); @@ -1396,6 +1411,16 @@ static bool dce83_construct( dm_error("DC: failed to create output pixel processor!\n"); goto res_create_fail; } + } + + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { + pool->base.engines[i] = dce80_aux_engine_create(ctx, i); + if (pool->base.engines[i] == NULL) { + BREAK_TO_DEBUGGER(); + dm_error( + "DC:failed to create aux engine!!\n"); + goto res_create_fail; + } pool->base.hw_i2cs[i] = dce80_i2c_hw_create(ctx, i); if (pool->base.hw_i2cs[i] == NULL) { BREAK_TO_DEBUGGER(); diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c index 28ebad8c3ec4..1b519f8f044f 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c @@ -501,6 +501,7 @@ static const struct resource_caps res_cap = { .num_audio = 4, .num_stream_encoder = 4, .num_pll = 4, + .num_ddc = 4, }; static const struct dc_debug_options debug_defaults_drv = { @@ -1334,7 +1335,11 @@ static bool construct( dm_error("DC: failed to create tg!\n"); goto fail; } + /* check next valid pipe */ + j++; + } + for (i = 0; i < pool->base.res_cap->num_ddc; i++) { pool->base.engines[i] = dcn10_aux_engine_create(ctx, i); if (pool->base.engines[i] == NULL) { BREAK_TO_DEBUGGER(); @@ -1350,8 +1355,6 @@ static bool construct( goto fail; } pool->base.sw_i2cs[i] = NULL; - /* check next valid pipe */ - j++; } /* valid pipe num */ diff --git a/drivers/gpu/drm/amd/display/dc/inc/resource.h b/drivers/gpu/drm/amd/display/dc/inc/resource.h index 5b321008b0b5..76d00c6dbca9 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/resource.h +++ b/drivers/gpu/drm/amd/display/dc/inc/resource.h @@ -44,6 +44,7 @@ struct resource_caps { int num_stream_encoder; int num_pll; int num_dwb; + int num_ddc; }; struct resource_straps { -- 2.14.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
