From: Alex Deucher Date: Fri, 15 Feb 2013 16:56:59 +0000 (-0500) Subject: drm/radeon: add support for ASPM on SI asics (v2) X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e0bcf1654d2639a326ea2c95efdfddfff3cc9c55;p=linux-beck.git drm/radeon: add support for ASPM on SI asics (v2) Enables PCIE ASPM (Active State Power Management) on SI asics. v2: fix typo Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index b073b2caf54d..9fd0bc379f36 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -67,6 +67,7 @@ MODULE_FIRMWARE("radeon/HAINAN_mc.bin"); MODULE_FIRMWARE("radeon/HAINAN_rlc.bin"); static void si_pcie_gen3_enable(struct radeon_device *rdev); +static void si_program_aspm(struct radeon_device *rdev); extern int r600_ih_ring_alloc(struct radeon_device *rdev); extern void r600_ih_ring_fini(struct radeon_device *rdev); extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev); @@ -5319,6 +5320,8 @@ static int si_startup(struct radeon_device *rdev) /* enable pcie gen2/3 link */ si_pcie_gen3_enable(rdev); + /* enable aspm */ + si_program_aspm(rdev); if (!rdev->me_fw || !rdev->pfp_fw || !rdev->ce_fw || !rdev->rlc_fw || !rdev->mc_fw) { @@ -5943,3 +5946,203 @@ static void si_pcie_gen3_enable(struct radeon_device *rdev) } } +static void si_program_aspm(struct radeon_device *rdev) +{ + u32 data, orig; + bool disable_l0s = false, disable_l1 = false, disable_plloff_in_l1 = false; + bool disable_clkreq = false; + + if (!(rdev->flags & RADEON_IS_PCIE)) + return; + + orig = data = RREG32_PCIE_PORT(PCIE_LC_N_FTS_CNTL); + data &= ~LC_XMIT_N_FTS_MASK; + data |= LC_XMIT_N_FTS(0x24) | LC_XMIT_N_FTS_OVERRIDE_EN; + if (orig != data) + WREG32_PCIE_PORT(PCIE_LC_N_FTS_CNTL, data); + + orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL3); + data |= LC_GO_TO_RECOVERY; + if (orig != data) + WREG32_PCIE_PORT(PCIE_LC_CNTL3, data); + + orig = data = RREG32_PCIE(PCIE_P_CNTL); + data |= P_IGNORE_EDB_ERR; + if (orig != data) + WREG32_PCIE(PCIE_P_CNTL, data); + + orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL); + data &= ~(LC_L0S_INACTIVITY_MASK | LC_L1_INACTIVITY_MASK); + data |= LC_PMI_TO_L1_DIS; + if (!disable_l0s) + data |= LC_L0S_INACTIVITY(7); + + if (!disable_l1) { + data |= LC_L1_INACTIVITY(7); + data &= ~LC_PMI_TO_L1_DIS; + if (orig != data) + WREG32_PCIE_PORT(PCIE_LC_CNTL, data); + + if (!disable_plloff_in_l1) { + bool clk_req_support; + + orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0); + data &= ~(PLL_POWER_STATE_IN_OFF_0_MASK | PLL_POWER_STATE_IN_TXS2_0_MASK); + data |= PLL_POWER_STATE_IN_OFF_0(7) | PLL_POWER_STATE_IN_TXS2_0(7); + if (orig != data) + WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0, data); + + orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1); + data &= ~(PLL_POWER_STATE_IN_OFF_1_MASK | PLL_POWER_STATE_IN_TXS2_1_MASK); + data |= PLL_POWER_STATE_IN_OFF_1(7) | PLL_POWER_STATE_IN_TXS2_1(7); + if (orig != data) + WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1, data); + + orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0); + data &= ~(PLL_POWER_STATE_IN_OFF_0_MASK | PLL_POWER_STATE_IN_TXS2_0_MASK); + data |= PLL_POWER_STATE_IN_OFF_0(7) | PLL_POWER_STATE_IN_TXS2_0(7); + if (orig != data) + WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0, data); + + orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1); + data &= ~(PLL_POWER_STATE_IN_OFF_1_MASK | PLL_POWER_STATE_IN_TXS2_1_MASK); + data |= PLL_POWER_STATE_IN_OFF_1(7) | PLL_POWER_STATE_IN_TXS2_1(7); + if (orig != data) + WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1, data); + + if ((rdev->family != CHIP_OLAND) && (rdev->family != CHIP_HAINAN)) { + orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0); + data &= ~PLL_RAMP_UP_TIME_0_MASK; + if (orig != data) + WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_0, data); + + orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1); + data &= ~PLL_RAMP_UP_TIME_1_MASK; + if (orig != data) + WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_1, data); + + orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_2); + data &= ~PLL_RAMP_UP_TIME_2_MASK; + if (orig != data) + WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_2, data); + + orig = data = RREG32_PIF_PHY0(PB0_PIF_PWRDOWN_3); + data &= ~PLL_RAMP_UP_TIME_3_MASK; + if (orig != data) + WREG32_PIF_PHY0(PB0_PIF_PWRDOWN_3, data); + + orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0); + data &= ~PLL_RAMP_UP_TIME_0_MASK; + if (orig != data) + WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_0, data); + + orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1); + data &= ~PLL_RAMP_UP_TIME_1_MASK; + if (orig != data) + WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_1, data); + + orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_2); + data &= ~PLL_RAMP_UP_TIME_2_MASK; + if (orig != data) + WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_2, data); + + orig = data = RREG32_PIF_PHY1(PB1_PIF_PWRDOWN_3); + data &= ~PLL_RAMP_UP_TIME_3_MASK; + if (orig != data) + WREG32_PIF_PHY1(PB1_PIF_PWRDOWN_3, data); + } + orig = data = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL); + data &= ~LC_DYN_LANES_PWR_STATE_MASK; + data |= LC_DYN_LANES_PWR_STATE(3); + if (orig != data) + WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, data); + + orig = data = RREG32_PIF_PHY0(PB0_PIF_CNTL); + data &= ~LS2_EXIT_TIME_MASK; + if ((rdev->family == CHIP_OLAND) || (rdev->family == CHIP_HAINAN)) + data |= LS2_EXIT_TIME(5); + if (orig != data) + WREG32_PIF_PHY0(PB0_PIF_CNTL, data); + + orig = data = RREG32_PIF_PHY1(PB1_PIF_CNTL); + data &= ~LS2_EXIT_TIME_MASK; + if ((rdev->family == CHIP_OLAND) || (rdev->family == CHIP_HAINAN)) + data |= LS2_EXIT_TIME(5); + if (orig != data) + WREG32_PIF_PHY1(PB1_PIF_CNTL, data); + + if (!disable_clkreq) { + struct pci_dev *root = rdev->pdev->bus->self; + u32 lnkcap; + + clk_req_support = false; + pcie_capability_read_dword(root, PCI_EXP_LNKCAP, &lnkcap); + if (lnkcap & PCI_EXP_LNKCAP_CLKPM) + clk_req_support = true; + } else { + clk_req_support = false; + } + + if (clk_req_support) { + orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL2); + data |= LC_ALLOW_PDWN_IN_L1 | LC_ALLOW_PDWN_IN_L23; + if (orig != data) + WREG32_PCIE_PORT(PCIE_LC_CNTL2, data); + + orig = data = RREG32(THM_CLK_CNTL); + data &= ~(CMON_CLK_SEL_MASK | TMON_CLK_SEL_MASK); + data |= CMON_CLK_SEL(1) | TMON_CLK_SEL(1); + if (orig != data) + WREG32(THM_CLK_CNTL, data); + + orig = data = RREG32(MISC_CLK_CNTL); + data &= ~(DEEP_SLEEP_CLK_SEL_MASK | ZCLK_SEL_MASK); + data |= DEEP_SLEEP_CLK_SEL(1) | ZCLK_SEL(1); + if (orig != data) + WREG32(MISC_CLK_CNTL, data); + + orig = data = RREG32(CG_CLKPIN_CNTL); + data &= ~BCLK_AS_XCLK; + if (orig != data) + WREG32(CG_CLKPIN_CNTL, data); + + orig = data = RREG32(CG_CLKPIN_CNTL_2); + data &= ~FORCE_BIF_REFCLK_EN; + if (orig != data) + WREG32(CG_CLKPIN_CNTL_2, data); + + orig = data = RREG32(MPLL_BYPASSCLK_SEL); + data &= ~MPLL_CLKOUT_SEL_MASK; + data |= MPLL_CLKOUT_SEL(4); + if (orig != data) + WREG32(MPLL_BYPASSCLK_SEL, data); + + orig = data = RREG32(SPLL_CNTL_MODE); + data &= ~SPLL_REFCLK_SEL_MASK; + if (orig != data) + WREG32(SPLL_CNTL_MODE, data); + } + } + } else { + if (orig != data) + WREG32_PCIE_PORT(PCIE_LC_CNTL, data); + } + + orig = data = RREG32_PCIE(PCIE_CNTL2); + data |= SLV_MEM_LS_EN | MST_MEM_LS_EN | REPLAY_MEM_LS_EN; + if (orig != data) + WREG32_PCIE(PCIE_CNTL2, data); + + if (!disable_l0s) { + data = RREG32_PCIE_PORT(PCIE_LC_N_FTS_CNTL); + if((data & LC_N_FTS_MASK) == LC_N_FTS_MASK) { + data = RREG32_PCIE(PCIE_LC_STATUS1); + if ((data & LC_REVERSE_XMIT) && (data & LC_REVERSE_RCVR)) { + orig = data = RREG32_PCIE_PORT(PCIE_LC_CNTL); + data &= ~LC_L0S_INACTIVITY_MASK; + if (orig != data) + WREG32_PCIE_PORT(PCIE_LC_CNTL, data); + } + } + } +} diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 6d4bdbc797a4..5f29d81d8db2 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -88,11 +88,32 @@ #define VGA_HDP_CONTROL 0x328 #define VGA_MEMORY_DISABLE (1 << 4) +#define SPLL_CNTL_MODE 0x618 +# define SPLL_REFCLK_SEL(x) ((x) << 8) +# define SPLL_REFCLK_SEL_MASK 0xFF00 + +#define MPLL_BYPASSCLK_SEL 0x65c +# define MPLL_CLKOUT_SEL(x) ((x) << 8) +# define MPLL_CLKOUT_SEL_MASK 0xFF00 + #define CG_CLKPIN_CNTL 0x660 # define XTALIN_DIVIDE (1 << 1) +# define BCLK_AS_XCLK (1 << 2) #define CG_CLKPIN_CNTL_2 0x664 +# define FORCE_BIF_REFCLK_EN (1 << 3) # define MUX_TCLK_TO_XCLK (1 << 8) +#define THM_CLK_CNTL 0x66c +# define CMON_CLK_SEL(x) ((x) << 0) +# define CMON_CLK_SEL_MASK 0xFF +# define TMON_CLK_SEL(x) ((x) << 8) +# define TMON_CLK_SEL_MASK 0xFF00 +#define MISC_CLK_CNTL 0x670 +# define DEEP_SLEEP_CLK_SEL(x) ((x) << 0) +# define DEEP_SLEEP_CLK_SEL_MASK 0xFF +# define ZCLK_SEL(x) ((x) << 8) +# define ZCLK_SEL_MASK 0xFF00 + #define DMIF_ADDR_CONFIG 0xBD4 #define DMIF_ADDR_CALC 0xC00 @@ -829,14 +850,88 @@ # define THREAD_TRACE_FLUSH (54 << 0) # define THREAD_TRACE_FINISH (55 << 0) +/* PIF PHY0 registers idx/data 0x8/0xc */ +#define PB0_PIF_CNTL 0x10 +# define LS2_EXIT_TIME(x) ((x) << 17) +# define LS2_EXIT_TIME_MASK (0x7 << 17) +# define LS2_EXIT_TIME_SHIFT 17 +#define PB0_PIF_PAIRING 0x11 +# define MULTI_PIF (1 << 25) +#define PB0_PIF_PWRDOWN_0 0x12 +# define PLL_POWER_STATE_IN_TXS2_0(x) ((x) << 7) +# define PLL_POWER_STATE_IN_TXS2_0_MASK (0x7 << 7) +# define PLL_POWER_STATE_IN_TXS2_0_SHIFT 7 +# define PLL_POWER_STATE_IN_OFF_0(x) ((x) << 10) +# define PLL_POWER_STATE_IN_OFF_0_MASK (0x7 << 10) +# define PLL_POWER_STATE_IN_OFF_0_SHIFT 10 +# define PLL_RAMP_UP_TIME_0(x) ((x) << 24) +# define PLL_RAMP_UP_TIME_0_MASK (0x7 << 24) +# define PLL_RAMP_UP_TIME_0_SHIFT 24 +#define PB0_PIF_PWRDOWN_1 0x13 +# define PLL_POWER_STATE_IN_TXS2_1(x) ((x) << 7) +# define PLL_POWER_STATE_IN_TXS2_1_MASK (0x7 << 7) +# define PLL_POWER_STATE_IN_TXS2_1_SHIFT 7 +# define PLL_POWER_STATE_IN_OFF_1(x) ((x) << 10) +# define PLL_POWER_STATE_IN_OFF_1_MASK (0x7 << 10) +# define PLL_POWER_STATE_IN_OFF_1_SHIFT 10 +# define PLL_RAMP_UP_TIME_1(x) ((x) << 24) +# define PLL_RAMP_UP_TIME_1_MASK (0x7 << 24) +# define PLL_RAMP_UP_TIME_1_SHIFT 24 + +#define PB0_PIF_PWRDOWN_2 0x17 +# define PLL_POWER_STATE_IN_TXS2_2(x) ((x) << 7) +# define PLL_POWER_STATE_IN_TXS2_2_MASK (0x7 << 7) +# define PLL_POWER_STATE_IN_TXS2_2_SHIFT 7 +# define PLL_POWER_STATE_IN_OFF_2(x) ((x) << 10) +# define PLL_POWER_STATE_IN_OFF_2_MASK (0x7 << 10) +# define PLL_POWER_STATE_IN_OFF_2_SHIFT 10 +# define PLL_RAMP_UP_TIME_2(x) ((x) << 24) +# define PLL_RAMP_UP_TIME_2_MASK (0x7 << 24) +# define PLL_RAMP_UP_TIME_2_SHIFT 24 +#define PB0_PIF_PWRDOWN_3 0x18 +# define PLL_POWER_STATE_IN_TXS2_3(x) ((x) << 7) +# define PLL_POWER_STATE_IN_TXS2_3_MASK (0x7 << 7) +# define PLL_POWER_STATE_IN_TXS2_3_SHIFT 7 +# define PLL_POWER_STATE_IN_OFF_3(x) ((x) << 10) +# define PLL_POWER_STATE_IN_OFF_3_MASK (0x7 << 10) +# define PLL_POWER_STATE_IN_OFF_3_SHIFT 10 +# define PLL_RAMP_UP_TIME_3(x) ((x) << 24) +# define PLL_RAMP_UP_TIME_3_MASK (0x7 << 24) +# define PLL_RAMP_UP_TIME_3_SHIFT 24 +/* PIF PHY1 registers idx/data 0x10/0x14 */ +#define PB1_PIF_CNTL 0x10 +#define PB1_PIF_PAIRING 0x11 +#define PB1_PIF_PWRDOWN_0 0x12 +#define PB1_PIF_PWRDOWN_1 0x13 + +#define PB1_PIF_PWRDOWN_2 0x17 +#define PB1_PIF_PWRDOWN_3 0x18 /* PCIE registers idx/data 0x30/0x34 */ +#define PCIE_CNTL2 0x1c /* PCIE */ +# define SLV_MEM_LS_EN (1 << 16) +# define MST_MEM_LS_EN (1 << 18) +# define REPLAY_MEM_LS_EN (1 << 19) #define PCIE_LC_STATUS1 0x28 /* PCIE */ +# define LC_REVERSE_RCVR (1 << 0) +# define LC_REVERSE_XMIT (1 << 1) # define LC_OPERATING_LINK_WIDTH_MASK (0x7 << 2) # define LC_OPERATING_LINK_WIDTH_SHIFT 2 # define LC_DETECTED_LINK_WIDTH_MASK (0x7 << 5) # define LC_DETECTED_LINK_WIDTH_SHIFT 5 +#define PCIE_P_CNTL 0x40 /* PCIE */ +# define P_IGNORE_EDB_ERR (1 << 6) + /* PCIE PORT registers idx/data 0x38/0x3c */ +#define PCIE_LC_CNTL 0xa0 +# define LC_L0S_INACTIVITY(x) ((x) << 8) +# define LC_L0S_INACTIVITY_MASK (0xf << 8) +# define LC_L0S_INACTIVITY_SHIFT 8 +# define LC_L1_INACTIVITY(x) ((x) << 12) +# define LC_L1_INACTIVITY_MASK (0xf << 12) +# define LC_L1_INACTIVITY_SHIFT 12 +# define LC_PMI_TO_L1_DIS (1 << 16) +# define LC_ASPM_TO_L1_DIS (1 << 24) #define PCIE_LC_LINK_WIDTH_CNTL 0xa2 /* PCIE_P */ # define LC_LINK_WIDTH_SHIFT 0 # define LC_LINK_WIDTH_MASK 0x7 @@ -855,6 +950,15 @@ # define LC_SHORT_RECONFIG_EN (1 << 11) # define LC_UPCONFIGURE_SUPPORT (1 << 12) # define LC_UPCONFIGURE_DIS (1 << 13) +# define LC_DYN_LANES_PWR_STATE(x) ((x) << 21) +# define LC_DYN_LANES_PWR_STATE_MASK (0x3 << 21) +# define LC_DYN_LANES_PWR_STATE_SHIFT 21 +#define PCIE_LC_N_FTS_CNTL 0xa3 /* PCIE_P */ +# define LC_XMIT_N_FTS(x) ((x) << 0) +# define LC_XMIT_N_FTS_MASK (0xff << 0) +# define LC_XMIT_N_FTS_SHIFT 0 +# define LC_XMIT_N_FTS_OVERRIDE_EN (1 << 8) +# define LC_N_FTS_MASK (0xff << 24) #define PCIE_LC_SPEED_CNTL 0xa4 /* PCIE_P */ # define LC_GEN2_EN_STRAP (1 << 0) # define LC_GEN3_EN_STRAP (1 << 1) @@ -875,6 +979,13 @@ # define LC_OTHER_SIDE_SUPPORTS_GEN2 (1 << 19) # define LC_OTHER_SIDE_EVER_SENT_GEN3 (1 << 20) # define LC_OTHER_SIDE_SUPPORTS_GEN3 (1 << 21) + +#define PCIE_LC_CNTL2 0xb1 +# define LC_ALLOW_PDWN_IN_L1 (1 << 17) +# define LC_ALLOW_PDWN_IN_L23 (1 << 18) + +#define PCIE_LC_CNTL3 0xb5 /* PCIE_P */ +# define LC_GO_TO_RECOVERY (1 << 30) #define PCIE_LC_CNTL4 0xb6 /* PCIE_P */ # define LC_REDO_EQ (1 << 5) # define LC_SET_QUIESCE (1 << 13)