From 41ef3dcd86443fab3f0ba50902d13935bc12d24f Mon Sep 17 00:00:00 2001 From: Michael Strauss Date: Thu, 13 Feb 2020 15:08:13 -0500 Subject: [PATCH] drm/amd/display: Fix RV2 Variant Detection [WHY] RV2 and variants are indistinguishable by hw internal rev alone, need to be distinguishable in order to correctly set max vlevel. Previous detection change incorrectly checked for hw internal rev. [HOW] Use pci revision to check if RV2 or low power variant Correct a few overlapping ASICREV range checks Signed-off-by: Michael Strauss Reviewed-by: Michael Strauss Acked-by: Rodrigo Siqueira Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c | 20 +++++++++++++++----- drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c | 7 ------- drivers/gpu/drm/amd/display/include/dal_asic_id.h | 12 ++++++------ 3 files changed, 21 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c index 1a37550..f0f07b1 100644 --- a/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c +++ b/drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.c @@ -703,11 +703,19 @@ static void hack_bounding_box(struct dcn_bw_internal_vars *v, } -unsigned int get_highest_allowed_voltage_level(uint32_t hw_internal_rev) +unsigned int get_highest_allowed_voltage_level(uint32_t hw_internal_rev, uint32_t pci_revision_id) { - /* for dali & pollock, the highest voltage level we want is 0 */ - if (ASICREV_IS_POLLOCK(hw_internal_rev) || ASICREV_IS_DALI(hw_internal_rev)) - return 0; + /* for low power RV2 variants, the highest voltage level we want is 0 */ + if (ASICREV_IS_RAVEN2(hw_internal_rev)) + switch (pci_revision_id) { + case PRID_DALI_DE: + case PRID_DALI_DF: + case PRID_DALI_E3: + case PRID_DALI_E4: + return 0; + default: + break; + } /* we are ok with all levels */ return 4; @@ -1277,7 +1285,9 @@ bool dcn_validate_bandwidth( PERFORMANCE_TRACE_END(); BW_VAL_TRACE_FINISH(); - if (bw_limit_pass && v->voltage_level <= get_highest_allowed_voltage_level(dc->ctx->asic_id.hw_internal_rev)) + if (bw_limit_pass && v->voltage_level <= get_highest_allowed_voltage_level( + dc->ctx->asic_id.hw_internal_rev, + dc->ctx->asic_id.pci_revision_id)) return true; else return false; diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c index 2f43f16..8ec2dfe 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c @@ -153,13 +153,6 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p #if defined(CONFIG_DRM_AMD_DC_DCN) case FAMILY_RV: - if (ASICREV_IS_DALI(asic_id.hw_internal_rev) || - ASICREV_IS_POLLOCK(asic_id.hw_internal_rev)) { - /* TEMP: this check has to come before ASICREV_IS_RENOIR */ - /* which also incorrectly returns true for Dali/Pollock*/ - rv2_clk_mgr_construct(ctx, clk_mgr, pp_smu); - break; - } if (ASICREV_IS_RENOIR(asic_id.hw_internal_rev)) { rn_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg); break; diff --git a/drivers/gpu/drm/amd/display/include/dal_asic_id.h b/drivers/gpu/drm/amd/display/include/dal_asic_id.h index a290398..ea7015f 100644 --- a/drivers/gpu/drm/amd/display/include/dal_asic_id.h +++ b/drivers/gpu/drm/amd/display/include/dal_asic_id.h @@ -136,8 +136,6 @@ #define RAVEN2_A0 0x81 #define RAVEN2_15D8_REV_94 0x94 #define RAVEN2_15D8_REV_95 0x95 -#define RAVEN2_15D8_REV_E3 0xE3 -#define RAVEN2_15D8_REV_E4 0xE4 #define RAVEN2_15D8_REV_E9 0xE9 #define RAVEN2_15D8_REV_EA 0xEA #define RAVEN2_15D8_REV_EB 0xEB @@ -146,14 +144,16 @@ #ifndef ASICREV_IS_RAVEN #define ASICREV_IS_RAVEN(eChipRev) ((eChipRev >= RAVEN_A0) && eChipRev < RAVEN_UNKNOWN) #endif +#define PRID_DALI_DE 0xDE +#define PRID_DALI_DF 0xDF +#define PRID_DALI_E3 0xE3 +#define PRID_DALI_E4 0xE4 #define ASICREV_IS_PICASSO(eChipRev) ((eChipRev >= PICASSO_A0) && (eChipRev < RAVEN2_A0)) #ifndef ASICREV_IS_RAVEN2 -#define ASICREV_IS_RAVEN2(eChipRev) ((eChipRev >= RAVEN2_A0) && (eChipRev < RAVEN1_F0)) +#define ASICREV_IS_RAVEN2(eChipRev) ((eChipRev >= RAVEN2_A0) && (eChipRev < RENOIR_A0)) #endif #define ASICREV_IS_RV1_F0(eChipRev) ((eChipRev >= RAVEN1_F0) && (eChipRev < RAVEN_UNKNOWN)) -#define ASICREV_IS_DALI(eChipRev) ((eChipRev == RAVEN2_15D8_REV_E3) \ - || (eChipRev == RAVEN2_15D8_REV_E4)) #define ASICREV_IS_POLLOCK(eChipRev) (eChipRev == RAVEN2_15D8_REV_94 \ || eChipRev == RAVEN2_15D8_REV_95 \ || eChipRev == RAVEN2_15D8_REV_E9 \ @@ -177,7 +177,7 @@ enum { #define ASICREV_IS_NAVI14_M(eChipRev) ((eChipRev >= NV_NAVI14_M_A0) && (eChipRev < NV_UNKNOWN)) #define RENOIR_A0 0x91 #define DEVICE_ID_RENOIR_1636 0x1636 // Renoir -#define ASICREV_IS_RENOIR(eChipRev) ((eChipRev >= RENOIR_A0) && (eChipRev < 0xFF)) +#define ASICREV_IS_RENOIR(eChipRev) ((eChipRev >= RENOIR_A0) && (eChipRev < RAVEN1_F0)) /* * ASIC chip ID -- 2.7.4