From 91d3130a4d82867ac47d2a45b6f12aab69046695 Mon Sep 17 00:00:00 2001 From: Hawking Zhang Date: Fri, 10 Feb 2017 15:13:17 +0800 Subject: [PATCH] drm/amdgpu: init gfx power gating on raven Signed-off-by: Hawking Zhang Reviewed-by: Alex Deucher Reviewed-by: Huang Rui Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 81 +++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index 4732fc6..04cd04c 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -43,6 +43,13 @@ #define RLC_SAVE_RESTORE_ADDR_STARTING_OFFSET 0x00000000L #define GFX9_RLC_FORMAT_DIRECT_REG_LIST_LENGTH 34 +#define mmPWR_MISC_CNTL_STATUS 0x0183 +#define mmPWR_MISC_CNTL_STATUS_BASE_IDX 0 +#define PWR_MISC_CNTL_STATUS__PWR_GFX_RLC_CGPG_EN__SHIFT 0x0 +#define PWR_MISC_CNTL_STATUS__PWR_GFXOFF_STATUS__SHIFT 0x1 +#define PWR_MISC_CNTL_STATUS__PWR_GFX_RLC_CGPG_EN_MASK 0x00000001L +#define PWR_MISC_CNTL_STATUS__PWR_GFXOFF_STATUS_MASK 0x00000006L + MODULE_FIRMWARE("amdgpu/vega10_ce.bin"); MODULE_FIRMWARE("amdgpu/vega10_pfp.bin"); MODULE_FIRMWARE("amdgpu/vega10_me.bin"); @@ -1828,6 +1835,74 @@ static void gfx_v9_0_enable_save_restore_machine(struct amdgpu_device *adev) WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_CNTL), tmp); } +static void pwr_10_0_gfxip_control_over_cgpg(struct amdgpu_device *adev, + bool enable) +{ + uint32_t data = 0; + uint32_t default_data = 0; + + default_data = data = RREG32(SOC15_REG_OFFSET(PWR, 0, mmPWR_MISC_CNTL_STATUS)); + if (enable == true) { + /* enable GFXIP control over CGPG */ + data |= PWR_MISC_CNTL_STATUS__PWR_GFX_RLC_CGPG_EN_MASK; + if(default_data != data) + WREG32(SOC15_REG_OFFSET(PWR, 0, mmPWR_MISC_CNTL_STATUS), data); + + /* update status */ + data &= ~PWR_MISC_CNTL_STATUS__PWR_GFXOFF_STATUS_MASK; + data |= (2 << PWR_MISC_CNTL_STATUS__PWR_GFXOFF_STATUS__SHIFT); + if(default_data != data) + WREG32(SOC15_REG_OFFSET(PWR, 0, mmPWR_MISC_CNTL_STATUS), data); + } else { + /* restore GFXIP control over GCPG */ + data &= ~PWR_MISC_CNTL_STATUS__PWR_GFX_RLC_CGPG_EN_MASK; + if(default_data != data) + WREG32(SOC15_REG_OFFSET(PWR, 0, mmPWR_MISC_CNTL_STATUS), data); + } +} + +static void gfx_v9_0_init_gfx_power_gating(struct amdgpu_device *adev) +{ + uint32_t data = 0; + + if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG | + AMD_PG_SUPPORT_GFX_SMG | + AMD_PG_SUPPORT_GFX_DMG)) { + /* init IDLE_POLL_COUNT = 60 */ + data = RREG32(SOC15_REG_OFFSET(GC, 0, mmCP_RB_WPTR_POLL_CNTL)); + data &= ~CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT_MASK; + data |= (0x60 << CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT__SHIFT); + WREG32(SOC15_REG_OFFSET(GC, 0, mmCP_RB_WPTR_POLL_CNTL), data); + + /* init RLC PG Delay */ + data = 0; + data |= (0x10 << RLC_PG_DELAY__POWER_UP_DELAY__SHIFT); + data |= (0x10 << RLC_PG_DELAY__POWER_DOWN_DELAY__SHIFT); + data |= (0x10 << RLC_PG_DELAY__CMD_PROPAGATE_DELAY__SHIFT); + data |= (0x40 << RLC_PG_DELAY__MEM_SLEEP_DELAY__SHIFT); + WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_PG_DELAY), data); + + data = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_PG_DELAY_2)); + data &= ~RLC_PG_DELAY_2__SERDES_CMD_DELAY_MASK; + data |= (0x4 << RLC_PG_DELAY_2__SERDES_CMD_DELAY__SHIFT); + WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_PG_DELAY_2), data); + + data = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_PG_DELAY_3)); + data &= ~RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG_MASK; + data |= (0xff << RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG__SHIFT); + WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_PG_DELAY_3), data); + + data = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_AUTO_PG_CTRL)); + data &= ~RLC_AUTO_PG_CTRL__GRBM_REG_SAVE_GFX_IDLE_THRESHOLD_MASK; + + /* program GRBM_REG_SAVE_GFX_IDLE_THRESHOLD to 0x55f0 */ + data |= (0x55f0 << RLC_AUTO_PG_CTRL__GRBM_REG_SAVE_GFX_IDLE_THRESHOLD__SHIFT); + WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_AUTO_PG_CTRL), data); + + pwr_10_0_gfxip_control_over_cgpg(adev, true); + } +} + static void gfx_v9_0_init_pg(struct amdgpu_device *adev) { if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG | @@ -1839,6 +1914,12 @@ static void gfx_v9_0_init_pg(struct amdgpu_device *adev) gfx_v9_0_init_csb(adev); gfx_v9_0_init_rlc_save_restore_list(adev); gfx_v9_0_enable_save_restore_machine(adev); + + if (adev->asic_type == CHIP_RAVEN) { + WREG32(mmRLC_JUMP_TABLE_RESTORE, + adev->gfx.rlc.cp_table_gpu_addr >> 8); + gfx_v9_0_init_gfx_power_gating(adev); + } } } -- 2.7.4