* [PATCH 0/8] Add multiple PMCs support in pmc core driver
@ 2023-06-13 22:53 Rajvi Jingar
2023-06-13 22:53 ` [PATCH 1/8] platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms Rajvi Jingar
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee, Rajvi Jingar
Newer platforms starting from Meteor Lake can have multiple PMCs.
This patch series include changes to enable pmc core driver to support
multiple PMCs for newer platforms. It adds devid and register maps to
enable IOE-P and IOE-M available on Meteor Lake platform. It also fixes
the register maps for SOC-M.
Patch includes:
platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms
platform/x86:intel/pmc: Combine core_init() and core_configure()
platform/x86:intel/pmc: Add support to handle multiple PMCs
platform/x86:intel/pmc: Enable debugfs multiple PMC support
platform/x86:intel/pmc: Discover PMC devices
platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMC
platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related maps
platform/x86:intel/pmc: Add Meteor Lake IOE-M PMC related maps
drivers/platform/x86/intel/pmc/Makefile | 4 +-
drivers/platform/x86/intel/pmc/adl.c | 16 +-
drivers/platform/x86/intel/pmc/cnp.c | 18 +-
drivers/platform/x86/intel/pmc/core.c | 470 ++++++----
drivers/platform/x86/intel/pmc/core.h | 125 ++-
drivers/platform/x86/intel/pmc/core_ssram.c | 133 +++
drivers/platform/x86/intel/pmc/icl.c | 7 +-
drivers/platform/x86/intel/pmc/mtl.c | 954 +++++++++++++++++++-
drivers/platform/x86/intel/pmc/spt.c | 7 +-
drivers/platform/x86/intel/pmc/tgl.c | 21 +-
10 files changed, 1516 insertions(+), 239 deletions(-)
create mode 100644 drivers/platform/x86/intel/pmc/core_ssram.c
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH 1/8] platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-13 22:53 ` [PATCH 2/8] platform/x86:intel/pmc: Combine core_init() and core_configure() Rajvi Jingar
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee, Rajvi Jingar
From: Xi Pardee <xi.pardee@intel.com>
Fix the IP name errors in the register maps used by the following
debugfs attributes in the Meteor Lake SOC-M PMC.
pfear_sts
lpm_sts
ltr_show
Fixes: c5ad454a12c6 ("platform/x86: intel/pmc/core: Add Meteor Lake support to pmc core driver")
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/core.h | 28 +-
drivers/platform/x86/intel/pmc/mtl.c | 448 +++++++++++++++++++++++++-
2 files changed, 466 insertions(+), 10 deletions(-)
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 7c95586e742b..86d38270000a 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -249,6 +249,14 @@ enum ppfear_regs {
#define MTL_LPM_STATUS_LATCH_EN_OFFSET 0x16F8
#define MTL_LPM_STATUS_OFFSET 0x1700
#define MTL_LPM_LIVE_STATUS_OFFSET 0x175C
+#define MTL_PMC_LTR_IOE_PMC 0x1C0C
+#define MTL_PMC_LTR_ESE 0x1BAC
+#define MTL_SOCM_NUM_IP_IGN_ALLOWED 25
+#define MTL_SOC_PMC_MMIO_REG_LEN 0x2708
+#define MTL_PMC_LTR_SPG 0x1B74
+
+/* Meteor Lake PGD PFET Enable Ack Status */
+#define MTL_SOCM_PPFEAR_NUM_ENTRIES 8
extern const char *pmc_lpm_modes[];
@@ -395,7 +403,25 @@ extern const struct pmc_bit_map adl_vnn_req_status_3_map[];
extern const struct pmc_bit_map adl_vnn_misc_status_map[];
extern const struct pmc_bit_map *adl_lpm_maps[];
extern const struct pmc_reg_map adl_reg_map;
-extern const struct pmc_reg_map mtl_reg_map;
+extern const struct pmc_bit_map mtl_socm_pfear_map[];
+extern const struct pmc_bit_map *ext_mtl_socm_pfear_map[];
+extern const struct pmc_bit_map mtl_socm_ltr_show_map[];
+extern const struct pmc_bit_map mtl_socm_clocksource_status_map[];
+extern const struct pmc_bit_map mtl_socm_power_gating_status_0_map[];
+extern const struct pmc_bit_map mtl_socm_power_gating_status_1_map[];
+extern const struct pmc_bit_map mtl_socm_power_gating_status_2_map[];
+extern const struct pmc_bit_map mtl_socm_d3_status_0_map[];
+extern const struct pmc_bit_map mtl_socm_d3_status_1_map[];
+extern const struct pmc_bit_map mtl_socm_d3_status_2_map[];
+extern const struct pmc_bit_map mtl_socm_d3_status_3_map[];
+extern const struct pmc_bit_map mtl_socm_vnn_req_status_0_map[];
+extern const struct pmc_bit_map mtl_socm_vnn_req_status_1_map[];
+extern const struct pmc_bit_map mtl_socm_vnn_req_status_2_map[];
+extern const struct pmc_bit_map mtl_socm_vnn_req_status_3_map[];
+extern const struct pmc_bit_map mtl_socm_vnn_misc_status_map[];
+extern const struct pmc_bit_map mtl_socm_signal_status_map[];
+extern const struct pmc_bit_map *mtl_socm_lpm_maps[];
+extern const struct pmc_reg_map mtl_socm_reg_map;
extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev);
extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value);
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index 2b00ad9da621..cdcf743b5e2c 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -11,28 +11,458 @@
#include <linux/pci.h>
#include "core.h"
-const struct pmc_reg_map mtl_reg_map = {
- .pfear_sts = ext_tgl_pfear_map,
+/*
+ * Die Mapping to Product.
+ * Product SOCDie IOEDie PCHDie
+ * MTL-M SOC-M IOE-M None
+ * MTL-P SOC-M IOE-P None
+ * MTL-S SOC-S IOE-P PCH-S
+ */
+
+const struct pmc_bit_map mtl_socm_pfear_map[] = {
+ {"PMC", BIT(0)},
+ {"OPI", BIT(1)},
+ {"SPI", BIT(2)},
+ {"XHCI", BIT(3)},
+ {"SPA", BIT(4)},
+ {"SPB", BIT(5)},
+ {"SPC", BIT(6)},
+ {"GBE", BIT(7)},
+
+ {"SATA", BIT(0)},
+ {"DSP0", BIT(1)},
+ {"DSP1", BIT(2)},
+ {"DSP2", BIT(3)},
+ {"DSP3", BIT(4)},
+ {"SPD", BIT(5)},
+ {"LPSS", BIT(6)},
+ {"LPC", BIT(7)},
+
+ {"SMB", BIT(0)},
+ {"ISH", BIT(1)},
+ {"P2SB", BIT(2)},
+ {"NPK_VNN", BIT(3)},
+ {"SDX", BIT(4)},
+ {"SPE", BIT(5)},
+ {"FUSE", BIT(6)},
+ {"SBR8", BIT(7)},
+
+ {"RSVD24", BIT(0)},
+ {"OTG", BIT(1)},
+ {"EXI", BIT(2)},
+ {"CSE", BIT(3)},
+ {"CSME_KVM", BIT(4)},
+ {"CSME_PMT", BIT(5)},
+ {"CSME_CLINK", BIT(6)},
+ {"CSME_PTIO", BIT(7)},
+
+ {"CSME_USBR", BIT(0)},
+ {"CSME_SUSRAM", BIT(1)},
+ {"CSME_SMT1", BIT(2)},
+ {"RSVD35", BIT(3)},
+ {"CSME_SMS2", BIT(4)},
+ {"CSME_SMS", BIT(5)},
+ {"CSME_RTC", BIT(6)},
+ {"CSME_PSF", BIT(7)},
+
+ {"SBR0", BIT(0)},
+ {"SBR1", BIT(1)},
+ {"SBR2", BIT(2)},
+ {"SBR3", BIT(3)},
+ {"SBR4", BIT(4)},
+ {"SBR5", BIT(5)},
+ {"RSVD46", BIT(6)},
+ {"PSF1", BIT(7)},
+
+ {"PSF2", BIT(0)},
+ {"PSF3", BIT(1)},
+ {"PSF4", BIT(2)},
+ {"CNVI", BIT(3)},
+ {"UFSX2", BIT(4)},
+ {"EMMC", BIT(5)},
+ {"SPF", BIT(6)},
+ {"SBR6", BIT(7)},
+
+ {"SBR7", BIT(0)},
+ {"NPK_AON", BIT(1)},
+ {"HDA4", BIT(2)},
+ {"HDA5", BIT(3)},
+ {"HDA6", BIT(4)},
+ {"PSF6", BIT(5)},
+ {"RSVD62", BIT(6)},
+ {"RSVD63", BIT(7)},
+ {}
+};
+
+const struct pmc_bit_map *ext_mtl_socm_pfear_map[] = {
+ mtl_socm_pfear_map,
+ NULL
+};
+
+const struct pmc_bit_map mtl_socm_ltr_show_map[] = {
+ {"SOUTHPORT_A", CNP_PMC_LTR_SPA},
+ {"SOUTHPORT_B", CNP_PMC_LTR_SPB},
+ {"SATA", CNP_PMC_LTR_SATA},
+ {"GIGABIT_ETHERNET", CNP_PMC_LTR_GBE},
+ {"XHCI", CNP_PMC_LTR_XHCI},
+ {"SOUTHPORT_F", ADL_PMC_LTR_SPF},
+ {"ME", CNP_PMC_LTR_ME},
+ {"SATA1", CNP_PMC_LTR_EVA},
+ {"SOUTHPORT_C", CNP_PMC_LTR_SPC},
+ {"HD_AUDIO", CNP_PMC_LTR_AZ},
+ {"CNV", CNP_PMC_LTR_CNV},
+ {"LPSS", CNP_PMC_LTR_LPSS},
+ {"SOUTHPORT_D", CNP_PMC_LTR_SPD},
+ {"SOUTHPORT_E", CNP_PMC_LTR_SPE},
+ {"SATA2", CNP_PMC_LTR_CAM},
+ {"ESPI", CNP_PMC_LTR_ESPI},
+ {"SCC", CNP_PMC_LTR_SCC},
+ {"ISH", CNP_PMC_LTR_ISH},
+ {"UFSX2", CNP_PMC_LTR_UFSX2},
+ {"EMMC", CNP_PMC_LTR_EMMC},
+ {"WIGIG", ICL_PMC_LTR_WIGIG},
+ {"THC0", TGL_PMC_LTR_THC0},
+ {"THC1", TGL_PMC_LTR_THC1},
+ {"SOUTHPORT_G", MTL_PMC_LTR_SPG},
+ {"ESE", MTL_PMC_LTR_ESE},
+ {"IOE_PMC", MTL_PMC_LTR_IOE_PMC},
+
+ /* Below two cannot be used for LTR_IGNORE */
+ {"CURRENT_PLATFORM", CNP_PMC_LTR_CUR_PLT},
+ {"AGGREGATED_SYSTEM", CNP_PMC_LTR_CUR_ASLT},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_clocksource_status_map[] = {
+ {"AON2_OFF_STS", BIT(0)},
+ {"AON3_OFF_STS", BIT(1)},
+ {"AON4_OFF_STS", BIT(2)},
+ {"AON5_OFF_STS", BIT(3)},
+ {"AON1_OFF_STS", BIT(4)},
+ {"XTAL_LVM_OFF_STS", BIT(5)},
+ {"MPFPW1_0_PLL_OFF_STS", BIT(6)},
+ {"MPFPW1_1_PLL_OFF_STS", BIT(7)},
+ {"USB3_PLL_OFF_STS", BIT(8)},
+ {"AON3_SPL_OFF_STS", BIT(9)},
+ {"MPFPW2_0_PLL_OFF_STS", BIT(12)},
+ {"MPFPW3_0_PLL_OFF_STS", BIT(13)},
+ {"XTAL_AGGR_OFF_STS", BIT(17)},
+ {"USB2_PLL_OFF_STS", BIT(18)},
+ {"FILTER_PLL_OFF_STS", BIT(22)},
+ {"ACE_PLL_OFF_STS", BIT(24)},
+ {"FABRIC_PLL_OFF_STS", BIT(25)},
+ {"SOC_PLL_OFF_STS", BIT(26)},
+ {"PCIFAB_PLL_OFF_STS", BIT(27)},
+ {"REF_PLL_OFF_STS", BIT(28)},
+ {"IMG_PLL_OFF_STS", BIT(29)},
+ {"RTC_PLL_OFF_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_power_gating_status_0_map[] = {
+ {"PMC_PGD0_PG_STS", BIT(0)},
+ {"DMI_PGD0_PG_STS", BIT(1)},
+ {"ESPISPI_PGD0_PG_STS", BIT(2)},
+ {"XHCI_PGD0_PG_STS", BIT(3)},
+ {"SPA_PGD0_PG_STS", BIT(4)},
+ {"SPB_PGD0_PG_STS", BIT(5)},
+ {"SPC_PGD0_PG_STS", BIT(6)},
+ {"GBE_PGD0_PG_STS", BIT(7)},
+ {"SATA_PGD0_PG_STS", BIT(8)},
+ {"PSF13_PGD0_PG_STS", BIT(9)},
+ {"SOC_D2D_PGD3_PG_STS", BIT(10)},
+ {"MPFPW3_PGD0_PG_STS", BIT(11)},
+ {"ESE_PGD0_PG_STS", BIT(12)},
+ {"SPD_PGD0_PG_STS", BIT(13)},
+ {"LPSS_PGD0_PG_STS", BIT(14)},
+ {"LPC_PGD0_PG_STS", BIT(15)},
+ {"SMB_PGD0_PG_STS", BIT(16)},
+ {"ISH_PGD0_PG_STS", BIT(17)},
+ {"P2S_PGD0_PG_STS", BIT(18)},
+ {"NPK_PGD0_PG_STS", BIT(19)},
+ {"DBG_SBR_PGD0_PG_STS", BIT(20)},
+ {"SBRG_PGD0_PG_STS", BIT(21)},
+ {"FUSE_PGD0_PG_STS", BIT(22)},
+ {"SBR8_PGD0_PG_STS", BIT(23)},
+ {"SOC_D2D_PGD2_PG_STS", BIT(24)},
+ {"XDCI_PGD0_PG_STS", BIT(25)},
+ {"EXI_PGD0_PG_STS", BIT(26)},
+ {"CSE_PGD0_PG_STS", BIT(27)},
+ {"KVMCC_PGD0_PG_STS", BIT(28)},
+ {"PMT_PGD0_PG_STS", BIT(29)},
+ {"CLINK_PGD0_PG_STS", BIT(30)},
+ {"PTIO_PGD0_PG_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_power_gating_status_1_map[] = {
+ {"USBR0_PGD0_PG_STS", BIT(0)},
+ {"SUSRAM_PGD0_PG_STS", BIT(1)},
+ {"SMT1_PGD0_PG_STS", BIT(2)},
+ {"FIACPCB_U_PGD0_PG_STS", BIT(3)},
+ {"SMS2_PGD0_PG_STS", BIT(4)},
+ {"SMS1_PGD0_PG_STS", BIT(5)},
+ {"CSMERTC_PGD0_PG_STS", BIT(6)},
+ {"CSMEPSF_PGD0_PG_STS", BIT(7)},
+ {"SBR0_PGD0_PG_STS", BIT(8)},
+ {"SBR1_PGD0_PG_STS", BIT(9)},
+ {"SBR2_PGD0_PG_STS", BIT(10)},
+ {"SBR3_PGD0_PG_STS", BIT(11)},
+ {"U3FPW1_PGD0_PG_STS", BIT(12)},
+ {"SBR5_PGD0_PG_STS", BIT(13)},
+ {"MPFPW1_PGD0_PG_STS", BIT(14)},
+ {"UFSPW1_PGD0_PG_STS", BIT(15)},
+ {"FIA_X_PGD0_PG_STS", BIT(16)},
+ {"SOC_D2D_PGD0_PG_STS", BIT(17)},
+ {"MPFPW2_PGD0_PG_STS", BIT(18)},
+ {"CNVI_PGD0_PG_STS", BIT(19)},
+ {"UFSX2_PGD0_PG_STS", BIT(20)},
+ {"ENDBG_PGD0_PG_STS", BIT(21)},
+ {"DBG_PSF_PGD0_PG_STS", BIT(22)},
+ {"SBR6_PGD0_PG_STS", BIT(23)},
+ {"SBR7_PGD0_PG_STS", BIT(24)},
+ {"NPK_PGD1_PG_STS", BIT(25)},
+ {"FIACPCB_X_PGD0_PG_STS", BIT(26)},
+ {"DBC_PGD0_PG_STS", BIT(27)},
+ {"FUSEGPSB_PGD0_PG_STS", BIT(28)},
+ {"PSF6_PGD0_PG_STS", BIT(29)},
+ {"PSF7_PGD0_PG_STS", BIT(30)},
+ {"GBETSN1_PGD0_PG_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_power_gating_status_2_map[] = {
+ {"PSF8_PGD0_PG_STS", BIT(0)},
+ {"FIA_PGD0_PG_STS", BIT(1)},
+ {"SOC_D2D_PGD1_PG_STS", BIT(2)},
+ {"FIA_U_PGD0_PG_STS", BIT(3)},
+ {"TAM_PGD0_PG_STS", BIT(4)},
+ {"GBETSN_PGD0_PG_STS", BIT(5)},
+ {"TBTLSX_PGD0_PG_STS", BIT(6)},
+ {"THC0_PGD0_PG_STS", BIT(7)},
+ {"THC1_PGD0_PG_STS", BIT(8)},
+ {"PMC_PGD1_PG_STS", BIT(9)},
+ {"GNA_PGD0_PG_STS", BIT(10)},
+ {"ACE_PGD0_PG_STS", BIT(11)},
+ {"ACE_PGD1_PG_STS", BIT(12)},
+ {"ACE_PGD2_PG_STS", BIT(13)},
+ {"ACE_PGD3_PG_STS", BIT(14)},
+ {"ACE_PGD4_PG_STS", BIT(15)},
+ {"ACE_PGD5_PG_STS", BIT(16)},
+ {"ACE_PGD6_PG_STS", BIT(17)},
+ {"ACE_PGD7_PG_STS", BIT(18)},
+ {"ACE_PGD8_PG_STS", BIT(19)},
+ {"FIA_PGS_PGD0_PG_STS", BIT(20)},
+ {"FIACPCB_PGS_PGD0_PG_STS", BIT(21)},
+ {"FUSEPMSB_PGD0_PG_STS", BIT(22)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_d3_status_0_map[] = {
+ {"LPSS_D3_STS", BIT(3)},
+ {"XDCI_D3_STS", BIT(4)},
+ {"XHCI_D3_STS", BIT(5)},
+ {"SPA_D3_STS", BIT(12)},
+ {"SPB_D3_STS", BIT(13)},
+ {"SPC_D3_STS", BIT(14)},
+ {"SPD_D3_STS", BIT(15)},
+ {"ESPISPI_D3_STS", BIT(18)},
+ {"SATA_D3_STS", BIT(20)},
+ {"PSTH_D3_STS", BIT(21)},
+ {"DMI_D3_STS", BIT(22)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_d3_status_1_map[] = {
+ {"GBETSN1_D3_STS", BIT(14)},
+ {"GBE_D3_STS", BIT(19)},
+ {"ITSS_D3_STS", BIT(23)},
+ {"P2S_D3_STS", BIT(24)},
+ {"CNVI_D3_STS", BIT(27)},
+ {"UFSX2_D3_STS", BIT(28)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_d3_status_2_map[] = {
+ {"GNA_D3_STS", BIT(0)},
+ {"CSMERTC_D3_STS", BIT(1)},
+ {"SUSRAM_D3_STS", BIT(2)},
+ {"CSE_D3_STS", BIT(4)},
+ {"KVMCC_D3_STS", BIT(5)},
+ {"USBR0_D3_STS", BIT(6)},
+ {"ISH_D3_STS", BIT(7)},
+ {"SMT1_D3_STS", BIT(8)},
+ {"SMT2_D3_STS", BIT(9)},
+ {"SMT3_D3_STS", BIT(10)},
+ {"CLINK_D3_STS", BIT(14)},
+ {"PTIO_D3_STS", BIT(16)},
+ {"PMT_D3_STS", BIT(17)},
+ {"SMS1_D3_STS", BIT(18)},
+ {"SMS2_D3_STS", BIT(19)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_d3_status_3_map[] = {
+ {"ESE_D3_STS", BIT(2)},
+ {"GBETSN_D3_STS", BIT(13)},
+ {"THC0_D3_STS", BIT(14)},
+ {"THC1_D3_STS", BIT(15)},
+ {"ACE_D3_STS", BIT(23)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_vnn_req_status_0_map[] = {
+ {"LPSS_VNN_REQ_STS", BIT(3)},
+ {"FIA_VNN_REQ_STS", BIT(17)},
+ {"ESPISPI_VNN_REQ_STS", BIT(18)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_vnn_req_status_1_map[] = {
+ {"NPK_VNN_REQ_STS", BIT(4)},
+ {"DFXAGG_VNN_REQ_STS", BIT(8)},
+ {"EXI_VNN_REQ_STS", BIT(9)},
+ {"P2D_VNN_REQ_STS", BIT(18)},
+ {"GBE_VNN_REQ_STS", BIT(19)},
+ {"SMB_VNN_REQ_STS", BIT(25)},
+ {"LPC_VNN_REQ_STS", BIT(26)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_vnn_req_status_2_map[] = {
+ {"CSMERTC_VNN_REQ_STS", BIT(1)},
+ {"CSE_VNN_REQ_STS", BIT(4)},
+ {"ISH_VNN_REQ_STS", BIT(7)},
+ {"SMT1_VNN_REQ_STS", BIT(8)},
+ {"CLINK_VNN_REQ_STS", BIT(14)},
+ {"SMS1_VNN_REQ_STS", BIT(18)},
+ {"SMS2_VNN_REQ_STS", BIT(19)},
+ {"GPIOCOM4_VNN_REQ_STS", BIT(20)},
+ {"GPIOCOM3_VNN_REQ_STS", BIT(21)},
+ {"GPIOCOM2_VNN_REQ_STS", BIT(22)},
+ {"GPIOCOM1_VNN_REQ_STS", BIT(23)},
+ {"GPIOCOM0_VNN_REQ_STS", BIT(24)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_vnn_req_status_3_map[] = {
+ {"ESE_VNN_REQ_STS", BIT(2)},
+ {"DTS0_VNN_REQ_STS", BIT(7)},
+ {"GPIOCOM5_VNN_REQ_STS", BIT(11)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_vnn_misc_status_map[] = {
+ {"CPU_C10_REQ_STS", BIT(0)},
+ {"TS_OFF_REQ_STS", BIT(1)},
+ {"PNDE_MET_REQ_STS", BIT(2)},
+ {"PCIE_DEEP_PM_REQ_STS", BIT(3)},
+ {"PMC_CLK_THROTTLE_EN_REQ_STS", BIT(4)},
+ {"NPK_VNNAON_REQ_STS", BIT(5)},
+ {"VNN_SOC_REQ_STS", BIT(6)},
+ {"ISH_VNNAON_REQ_STS", BIT(7)},
+ {"IOE_COND_MET_S02I2_0_REQ_STS", BIT(8)},
+ {"IOE_COND_MET_S02I2_1_REQ_STS", BIT(9)},
+ {"IOE_COND_MET_S02I2_2_REQ_STS", BIT(10)},
+ {"PLT_GREATER_REQ_STS", BIT(11)},
+ {"PCIE_CLKREQ_REQ_STS", BIT(12)},
+ {"PMC_IDLE_FB_OCP_REQ_STS", BIT(13)},
+ {"PM_SYNC_STATES_REQ_STS", BIT(14)},
+ {"EA_REQ_STS", BIT(15)},
+ {"MPHY_CORE_OFF_REQ_STS", BIT(16)},
+ {"BRK_EV_EN_REQ_STS", BIT(17)},
+ {"AUTO_DEMO_EN_REQ_STS", BIT(18)},
+ {"ITSS_CLK_SRC_REQ_STS", BIT(19)},
+ {"LPC_CLK_SRC_REQ_STS", BIT(20)},
+ {"ARC_IDLE_REQ_STS", BIT(21)},
+ {"MPHY_SUS_REQ_STS", BIT(22)},
+ {"FIA_DEEP_PM_REQ_STS", BIT(23)},
+ {"UXD_CONNECTED_REQ_STS", BIT(24)},
+ {"ARC_INTERRUPT_WAKE_REQ_STS", BIT(25)},
+ {"USB2_VNNAON_ACT_REQ_STS", BIT(26)},
+ {"PRE_WAKE0_REQ_STS", BIT(27)},
+ {"PRE_WAKE1_REQ_STS", BIT(28)},
+ {"PRE_WAKE2_EN_REQ_STS", BIT(29)},
+ {"WOV_REQ_STS", BIT(30)},
+ {"CNVI_V1P05_REQ_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map mtl_socm_signal_status_map[] = {
+ {"LSX_Wake0_En_STS", BIT(0)},
+ {"LSX_Wake0_Pol_STS", BIT(1)},
+ {"LSX_Wake1_En_STS", BIT(2)},
+ {"LSX_Wake1_Pol_STS", BIT(3)},
+ {"LSX_Wake2_En_STS", BIT(4)},
+ {"LSX_Wake2_Pol_STS", BIT(5)},
+ {"LSX_Wake3_En_STS", BIT(6)},
+ {"LSX_Wake3_Pol_STS", BIT(7)},
+ {"LSX_Wake4_En_STS", BIT(8)},
+ {"LSX_Wake4_Pol_STS", BIT(9)},
+ {"LSX_Wake5_En_STS", BIT(10)},
+ {"LSX_Wake5_Pol_STS", BIT(11)},
+ {"LSX_Wake6_En_STS", BIT(12)},
+ {"LSX_Wake6_Pol_STS", BIT(13)},
+ {"LSX_Wake7_En_STS", BIT(14)},
+ {"LSX_Wake7_Pol_STS", BIT(15)},
+ {"LPSS_Wake0_En_STS", BIT(16)},
+ {"LPSS_Wake0_Pol_STS", BIT(17)},
+ {"LPSS_Wake1_En_STS", BIT(18)},
+ {"LPSS_Wake1_Pol_STS", BIT(19)},
+ {"Int_Timer_SS_Wake0_En_STS", BIT(20)},
+ {"Int_Timer_SS_Wake0_Pol_STS", BIT(21)},
+ {"Int_Timer_SS_Wake1_En_STS", BIT(22)},
+ {"Int_Timer_SS_Wake1_Pol_STS", BIT(23)},
+ {"Int_Timer_SS_Wake2_En_STS", BIT(24)},
+ {"Int_Timer_SS_Wake2_Pol_STS", BIT(25)},
+ {"Int_Timer_SS_Wake3_En_STS", BIT(26)},
+ {"Int_Timer_SS_Wake3_Pol_STS", BIT(27)},
+ {"Int_Timer_SS_Wake4_En_STS", BIT(28)},
+ {"Int_Timer_SS_Wake4_Pol_STS", BIT(29)},
+ {"Int_Timer_SS_Wake5_En_STS", BIT(30)},
+ {"Int_Timer_SS_Wake5_Pol_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map *mtl_socm_lpm_maps[] = {
+ mtl_socm_clocksource_status_map,
+ mtl_socm_power_gating_status_0_map,
+ mtl_socm_power_gating_status_1_map,
+ mtl_socm_power_gating_status_2_map,
+ mtl_socm_d3_status_0_map,
+ mtl_socm_d3_status_1_map,
+ mtl_socm_d3_status_2_map,
+ mtl_socm_d3_status_3_map,
+ mtl_socm_vnn_req_status_0_map,
+ mtl_socm_vnn_req_status_1_map,
+ mtl_socm_vnn_req_status_2_map,
+ mtl_socm_vnn_req_status_3_map,
+ mtl_socm_vnn_misc_status_map,
+ mtl_socm_signal_status_map,
+ NULL
+};
+
+const struct pmc_reg_map mtl_socm_reg_map = {
+ .pfear_sts = ext_mtl_socm_pfear_map,
.slp_s0_offset = CNP_PMC_SLP_S0_RES_COUNTER_OFFSET,
.slp_s0_res_counter_step = TGL_PMC_SLP_S0_RES_COUNTER_STEP,
- .ltr_show_sts = adl_ltr_show_map,
+ .ltr_show_sts = mtl_socm_ltr_show_map,
.msr_sts = msr_map,
.ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
- .regmap_length = CNP_PMC_MMIO_REG_LEN,
+ .regmap_length = MTL_SOC_PMC_MMIO_REG_LEN,
.ppfear0_offset = CNP_PMC_HOST_PPFEAR0A,
- .ppfear_buckets = ICL_PPFEAR_NUM_ENTRIES,
+ .ppfear_buckets = MTL_SOCM_PPFEAR_NUM_ENTRIES,
.pm_cfg_offset = CNP_PMC_PM_CFG_OFFSET,
.pm_read_disable_bit = CNP_PMC_READ_DISABLE_BIT,
- .ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
- .lpm_num_modes = ADL_LPM_NUM_MODES,
.lpm_num_maps = ADL_LPM_NUM_MAPS,
+ .ltr_ignore_max = MTL_SOCM_NUM_IP_IGN_ALLOWED,
.lpm_res_counter_step_x2 = TGL_PMC_LPM_RES_COUNTER_STEP_X2,
.etr3_offset = ETR3_OFFSET,
.lpm_sts_latch_en_offset = MTL_LPM_STATUS_LATCH_EN_OFFSET,
.lpm_priority_offset = MTL_LPM_PRI_OFFSET,
.lpm_en_offset = MTL_LPM_EN_OFFSET,
.lpm_residency_offset = MTL_LPM_RESIDENCY_OFFSET,
- .lpm_sts = adl_lpm_maps,
+ .lpm_sts = mtl_socm_lpm_maps,
.lpm_status_offset = MTL_LPM_STATUS_OFFSET,
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
};
@@ -87,7 +517,7 @@ static int mtl_resume(struct pmc_dev *pmcdev)
void mtl_core_init(struct pmc_dev *pmcdev)
{
- pmcdev->map = &mtl_reg_map;
+ pmcdev->map = &mtl_socm_reg_map;
pmcdev->core_configure = mtl_core_configure;
mtl_d3_fixup();
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 2/8] platform/x86:intel/pmc: Combine core_init() and core_configure()
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
2023-06-13 22:53 ` [PATCH 1/8] platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-13 22:53 ` [PATCH 3/8] platform/x86:intel/pmc: Add support to handle multiple PMCs Rajvi Jingar
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee
From: Xi Pardee <xi.pardee@intel.com>
Combine core_init() and core_configure() functions to have a
cleaner setup for platforms.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/adl.c | 15 +++++----
drivers/platform/x86/intel/pmc/cnp.c | 15 ++++++++-
drivers/platform/x86/intel/pmc/core.c | 47 +++++++++++++++------------
drivers/platform/x86/intel/pmc/core.h | 19 +++++------
drivers/platform/x86/intel/pmc/icl.c | 3 +-
drivers/platform/x86/intel/pmc/mtl.c | 26 ++++++++-------
drivers/platform/x86/intel/pmc/spt.c | 3 +-
drivers/platform/x86/intel/pmc/tgl.c | 15 +++++----
8 files changed, 85 insertions(+), 58 deletions(-)
diff --git a/drivers/platform/x86/intel/pmc/adl.c b/drivers/platform/x86/intel/pmc/adl.c
index 5cbd40979f2a..f678ce308cc7 100644
--- a/drivers/platform/x86/intel/pmc/adl.c
+++ b/drivers/platform/x86/intel/pmc/adl.c
@@ -309,17 +309,20 @@ const struct pmc_reg_map adl_reg_map = {
.lpm_live_status_offset = ADL_LPM_LIVE_STATUS_OFFSET,
};
-void adl_core_configure(struct pmc_dev *pmcdev)
+int adl_core_init(struct pmc_dev *pmcdev)
{
+ int ret;
+
+ pmcdev->map = &adl_reg_map;
+ ret = get_primary_reg_base(pmcdev);
+ if (ret)
+ return ret;
+
/* Due to a hardware limitation, the GBE LTR blocks PC10
* when a cable is attached. Tell the PMC to ignore it.
*/
dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n");
pmc_core_send_ltr_ignore(pmcdev, 3);
-}
-void adl_core_init(struct pmc_dev *pmcdev)
-{
- pmcdev->map = &adl_reg_map;
- pmcdev->core_configure = adl_core_configure;
+ return 0;
}
diff --git a/drivers/platform/x86/intel/pmc/cnp.c b/drivers/platform/x86/intel/pmc/cnp.c
index 7fb38815c4eb..5fb2d191ce30 100644
--- a/drivers/platform/x86/intel/pmc/cnp.c
+++ b/drivers/platform/x86/intel/pmc/cnp.c
@@ -204,7 +204,20 @@ const struct pmc_reg_map cnp_reg_map = {
.etr3_offset = ETR3_OFFSET,
};
-void cnp_core_init(struct pmc_dev *pmcdev)
+int cnp_core_init(struct pmc_dev *pmcdev)
{
+ int ret;
+
pmcdev->map = &cnp_reg_map;
+ ret = get_primary_reg_base(pmcdev);
+ if (ret)
+ return ret;
+
+ /* Due to a hardware limitation, the GBE LTR blocks PC10
+ * when a cable is attached. Tell the PMC to ignore it.
+ */
+ dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n");
+ pmc_core_send_ltr_ignore(pmcdev, 3);
+
+ return 0;
}
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index ed91ef9d1cf6..0d4cda7c1833 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -948,6 +948,25 @@ static void pmc_core_get_low_power_modes(struct platform_device *pdev)
}
}
+int get_primary_reg_base(struct pmc_dev *pmcdev)
+{
+ u64 slp_s0_addr;
+
+ if (lpit_read_residency_count_address(&slp_s0_addr)) {
+ pmcdev->base_addr = PMC_BASE_ADDR_DEFAULT;
+
+ if (page_is_ram(PHYS_PFN(pmcdev->base_addr)))
+ return -ENODEV;
+ } else {
+ pmcdev->base_addr = slp_s0_addr - pmcdev->map->slp_s0_offset;
+ }
+
+ pmcdev->regbase = ioremap(pmcdev->base_addr, pmcdev->map->regmap_length);
+ if (!pmcdev->regbase)
+ return -ENOMEM;
+ return 0;
+}
+
static void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev)
{
debugfs_remove_recursive(pmcdev->dbgfs_dir);
@@ -1099,8 +1118,8 @@ static int pmc_core_probe(struct platform_device *pdev)
static bool device_initialized;
struct pmc_dev *pmcdev;
const struct x86_cpu_id *cpu_id;
- void (*core_init)(struct pmc_dev *pmcdev);
- u64 slp_s0_addr;
+ int (*core_init)(struct pmc_dev *pmcdev);
+ int ret;
if (device_initialized)
return -ENODEV;
@@ -1116,7 +1135,7 @@ static int pmc_core_probe(struct platform_device *pdev)
if (!cpu_id)
return -ENODEV;
- core_init = (void (*)(struct pmc_dev *))cpu_id->driver_data;
+ core_init = (int (*)(struct pmc_dev *))cpu_id->driver_data;
/*
* Coffee Lake has CPU ID of Kaby Lake and Cannon Lake PCH. So here
@@ -1127,26 +1146,12 @@ static int pmc_core_probe(struct platform_device *pdev)
core_init = cnp_core_init;
mutex_init(&pmcdev->lock);
- core_init(pmcdev);
-
-
- if (lpit_read_residency_count_address(&slp_s0_addr)) {
- pmcdev->base_addr = PMC_BASE_ADDR_DEFAULT;
-
- if (page_is_ram(PHYS_PFN(pmcdev->base_addr)))
- return -ENODEV;
- } else {
- pmcdev->base_addr = slp_s0_addr - pmcdev->map->slp_s0_offset;
+ ret = core_init(pmcdev);
+ if (ret) {
+ mutex_destroy(&pmcdev->lock);
+ return ret;
}
- pmcdev->regbase = ioremap(pmcdev->base_addr,
- pmcdev->map->regmap_length);
- if (!pmcdev->regbase)
- return -ENOMEM;
-
- if (pmcdev->core_configure)
- pmcdev->core_configure(pmcdev);
-
pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit(pmcdev);
pmc_core_get_low_power_modes(pdev);
pmc_core_do_dmi_quirks(pmcdev);
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 86d38270000a..a672659b8659 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -334,7 +334,6 @@ struct pmc_reg_map {
* @num_lpm_modes: Count of enabled modes
* @lpm_en_modes: Array of enabled modes from lowest to highest priority
* @lpm_req_regs: List of substate requirements
- * @core_configure: Function pointer to configure the platform
* @resume: Function to perform platform specific resume
*
* pmc_dev contains info about power management controller device.
@@ -353,7 +352,6 @@ struct pmc_dev {
int num_lpm_modes;
int lpm_en_modes[LPM_MAX_NUM_MODES];
u32 *lpm_req_regs;
- void (*core_configure)(struct pmc_dev *pmcdev);
int (*resume)(struct pmc_dev *pmcdev);
};
@@ -427,15 +425,14 @@ extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev);
extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value);
int pmc_core_resume_common(struct pmc_dev *pmcdev);
-void spt_core_init(struct pmc_dev *pmcdev);
-void cnp_core_init(struct pmc_dev *pmcdev);
-void icl_core_init(struct pmc_dev *pmcdev);
-void tgl_core_init(struct pmc_dev *pmcdev);
-void adl_core_init(struct pmc_dev *pmcdev);
-void mtl_core_init(struct pmc_dev *pmcdev);
-void tgl_core_configure(struct pmc_dev *pmcdev);
-void adl_core_configure(struct pmc_dev *pmcdev);
-void mtl_core_configure(struct pmc_dev *pmcdev);
+int get_primary_reg_base(struct pmc_dev *pmcdev);
+
+int spt_core_init(struct pmc_dev *pmcdev);
+int cnp_core_init(struct pmc_dev *pmcdev);
+int icl_core_init(struct pmc_dev *pmcdev);
+int tgl_core_init(struct pmc_dev *pmcdev);
+int adl_core_init(struct pmc_dev *pmcdev);
+int mtl_core_init(struct pmc_dev *pmcdev);
#define pmc_for_each_mode(i, mode, pmcdev) \
for (i = 0, mode = pmcdev->lpm_en_modes[i]; \
diff --git a/drivers/platform/x86/intel/pmc/icl.c b/drivers/platform/x86/intel/pmc/icl.c
index 2f11b1a6daeb..a671d7e86431 100644
--- a/drivers/platform/x86/intel/pmc/icl.c
+++ b/drivers/platform/x86/intel/pmc/icl.c
@@ -50,7 +50,8 @@ const struct pmc_reg_map icl_reg_map = {
.etr3_offset = ETR3_OFFSET,
};
-void icl_core_init(struct pmc_dev *pmcdev)
+int icl_core_init(struct pmc_dev *pmcdev)
{
pmcdev->map = &icl_reg_map;
+ return get_primary_reg_base(pmcdev);
}
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index cdcf743b5e2c..a2fc96f9ef11 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -467,15 +467,6 @@ const struct pmc_reg_map mtl_socm_reg_map = {
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
};
-void mtl_core_configure(struct pmc_dev *pmcdev)
-{
- /* Due to a hardware limitation, the GBE LTR blocks PC10
- * when a cable is attached. Tell the PMC to ignore it.
- */
- dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n");
- pmc_core_send_ltr_ignore(pmcdev, 3);
-}
-
#define MTL_GNA_PCI_DEV 0x7e4c
#define MTL_IPU_PCI_DEV 0x7d19
#define MTL_VPU_PCI_DEV 0x7d1d
@@ -515,12 +506,25 @@ static int mtl_resume(struct pmc_dev *pmcdev)
return pmc_core_resume_common(pmcdev);
}
-void mtl_core_init(struct pmc_dev *pmcdev)
+int mtl_core_init(struct pmc_dev *pmcdev)
{
+ int ret;
+
pmcdev->map = &mtl_socm_reg_map;
- pmcdev->core_configure = mtl_core_configure;
mtl_d3_fixup();
pmcdev->resume = mtl_resume;
+
+ ret = get_primary_reg_base(pmcdev);
+ if (ret)
+ return ret;
+
+ /* Due to a hardware limitation, the GBE LTR blocks PC10
+ * when a cable is attached. Tell the PMC to ignore it.
+ */
+ dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n");
+ pmc_core_send_ltr_ignore(pmcdev, 3);
+
+ return 0;
}
diff --git a/drivers/platform/x86/intel/pmc/spt.c b/drivers/platform/x86/intel/pmc/spt.c
index e16982236778..f34015692bb8 100644
--- a/drivers/platform/x86/intel/pmc/spt.c
+++ b/drivers/platform/x86/intel/pmc/spt.c
@@ -134,7 +134,8 @@ const struct pmc_reg_map spt_reg_map = {
.pm_vric1_offset = SPT_PMC_VRIC1_OFFSET,
};
-void spt_core_init(struct pmc_dev *pmcdev)
+int spt_core_init(struct pmc_dev *pmcdev)
{
pmcdev->map = &spt_reg_map;
+ return get_primary_reg_base(pmcdev);
}
diff --git a/drivers/platform/x86/intel/pmc/tgl.c b/drivers/platform/x86/intel/pmc/tgl.c
index c245ada849d0..90807bd947ed 100644
--- a/drivers/platform/x86/intel/pmc/tgl.c
+++ b/drivers/platform/x86/intel/pmc/tgl.c
@@ -252,18 +252,21 @@ void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev)
ACPI_FREE(out_obj);
}
-void tgl_core_configure(struct pmc_dev *pmcdev)
+int tgl_core_init(struct pmc_dev *pmcdev)
{
+ int ret;
+
+ pmcdev->map = &tgl_reg_map;
+ ret = get_primary_reg_base(pmcdev);
+ if (ret)
+ return ret;
+
pmc_core_get_tgl_lpm_reqs(pmcdev->pdev);
/* Due to a hardware limitation, the GBE LTR blocks PC10
* when a cable is attached. Tell the PMC to ignore it.
*/
dev_dbg(&pmcdev->pdev->dev, "ignoring GBE LTR\n");
pmc_core_send_ltr_ignore(pmcdev, 3);
-}
-void tgl_core_init(struct pmc_dev *pmcdev)
-{
- pmcdev->map = &tgl_reg_map;
- pmcdev->core_configure = tgl_core_configure;
+ return 0;
}
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 3/8] platform/x86:intel/pmc: Add support to handle multiple PMCs
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
2023-06-13 22:53 ` [PATCH 1/8] platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms Rajvi Jingar
2023-06-13 22:53 ` [PATCH 2/8] platform/x86:intel/pmc: Combine core_init() and core_configure() Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-13 22:53 ` [PATCH 4/8] platform/x86:intel/pmc: Enable debugfs multiple PMC support Rajvi Jingar
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee
From: Xi Pardee <xi.pardee@intel.com>
To support platforms with multiple PMCs, add a PMC device structure to
support each PMC instance.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/adl.c | 5 +-
drivers/platform/x86/intel/pmc/cnp.c | 5 +-
drivers/platform/x86/intel/pmc/core.c | 272 ++++++++++++++------------
drivers/platform/x86/intel/pmc/core.h | 37 +++-
drivers/platform/x86/intel/pmc/icl.c | 6 +-
drivers/platform/x86/intel/pmc/mtl.c | 5 +-
drivers/platform/x86/intel/pmc/spt.c | 6 +-
drivers/platform/x86/intel/pmc/tgl.c | 10 +-
8 files changed, 205 insertions(+), 141 deletions(-)
diff --git a/drivers/platform/x86/intel/pmc/adl.c b/drivers/platform/x86/intel/pmc/adl.c
index f678ce308cc7..5006008e01be 100644
--- a/drivers/platform/x86/intel/pmc/adl.c
+++ b/drivers/platform/x86/intel/pmc/adl.c
@@ -311,10 +311,11 @@ const struct pmc_reg_map adl_reg_map = {
int adl_core_init(struct pmc_dev *pmcdev)
{
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
int ret;
- pmcdev->map = &adl_reg_map;
- ret = get_primary_reg_base(pmcdev);
+ pmc->map = &adl_reg_map;
+ ret = get_primary_reg_base(pmc);
if (ret)
return ret;
diff --git a/drivers/platform/x86/intel/pmc/cnp.c b/drivers/platform/x86/intel/pmc/cnp.c
index 5fb2d191ce30..420aaa1d7c76 100644
--- a/drivers/platform/x86/intel/pmc/cnp.c
+++ b/drivers/platform/x86/intel/pmc/cnp.c
@@ -206,10 +206,11 @@ const struct pmc_reg_map cnp_reg_map = {
int cnp_core_init(struct pmc_dev *pmcdev)
{
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
int ret;
- pmcdev->map = &cnp_reg_map;
- ret = get_primary_reg_base(pmcdev);
+ pmc->map = &cnp_reg_map;
+ ret = get_primary_reg_base(pmc);
if (ret)
return ret;
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 0d4cda7c1833..8d774461dd29 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -53,18 +53,18 @@ const struct pmc_bit_map msr_map[] = {
{}
};
-static inline u32 pmc_core_reg_read(struct pmc_dev *pmcdev, int reg_offset)
+static inline u32 pmc_core_reg_read(struct pmc *pmc, int reg_offset)
{
- return readl(pmcdev->regbase + reg_offset);
+ return readl(pmc->regbase + reg_offset);
}
-static inline void pmc_core_reg_write(struct pmc_dev *pmcdev, int reg_offset,
+static inline void pmc_core_reg_write(struct pmc *pmc, int reg_offset,
u32 val)
{
- writel(val, pmcdev->regbase + reg_offset);
+ writel(val, pmc->regbase + reg_offset);
}
-static inline u64 pmc_core_adjust_slp_s0_step(struct pmc_dev *pmcdev, u32 value)
+static inline u64 pmc_core_adjust_slp_s0_step(struct pmc *pmc, u32 value)
{
/*
* ADL PCH does not have the SLP_S0 counter and LPM Residency counters are
@@ -72,17 +72,18 @@ static inline u64 pmc_core_adjust_slp_s0_step(struct pmc_dev *pmcdev, u32 value)
* programs have the legacy SLP_S0 residency counter that is using the 122
* usec tick.
*/
- const int lpm_adj_x2 = pmcdev->map->lpm_res_counter_step_x2;
+ const int lpm_adj_x2 = pmc->map->lpm_res_counter_step_x2;
- if (pmcdev->map == &adl_reg_map)
+ if (pmc->map == &adl_reg_map)
return (u64)value * GET_X2_COUNTER((u64)lpm_adj_x2);
else
- return (u64)value * pmcdev->map->slp_s0_res_counter_step;
+ return (u64)value * pmc->map->slp_s0_res_counter_step;
}
static int set_etr3(struct pmc_dev *pmcdev)
{
- const struct pmc_reg_map *map = pmcdev->map;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_reg_map *map = pmc->map;
u32 reg;
int err;
@@ -92,7 +93,7 @@ static int set_etr3(struct pmc_dev *pmcdev)
mutex_lock(&pmcdev->lock);
/* check if CF9 is locked */
- reg = pmc_core_reg_read(pmcdev, map->etr3_offset);
+ reg = pmc_core_reg_read(pmc, map->etr3_offset);
if (reg & ETR3_CF9LOCK) {
err = -EACCES;
goto out_unlock;
@@ -100,9 +101,9 @@ static int set_etr3(struct pmc_dev *pmcdev)
/* write CF9 global reset bit */
reg |= ETR3_CF9GR;
- pmc_core_reg_write(pmcdev, map->etr3_offset, reg);
+ pmc_core_reg_write(pmc, map->etr3_offset, reg);
- reg = pmc_core_reg_read(pmcdev, map->etr3_offset);
+ reg = pmc_core_reg_read(pmc, map->etr3_offset);
if (!(reg & ETR3_CF9GR)) {
err = -EIO;
goto out_unlock;
@@ -120,11 +121,12 @@ static umode_t etr3_is_visible(struct kobject *kobj,
{
struct device *dev = kobj_to_dev(kobj);
struct pmc_dev *pmcdev = dev_get_drvdata(dev);
- const struct pmc_reg_map *map = pmcdev->map;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_reg_map *map = pmc->map;
u32 reg;
mutex_lock(&pmcdev->lock);
- reg = pmc_core_reg_read(pmcdev, map->etr3_offset);
+ reg = pmc_core_reg_read(pmc, map->etr3_offset);
mutex_unlock(&pmcdev->lock);
return reg & ETR3_CF9LOCK ? attr->mode & (SYSFS_PREALLOC | 0444) : attr->mode;
@@ -134,7 +136,8 @@ static ssize_t etr3_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pmc_dev *pmcdev = dev_get_drvdata(dev);
- const struct pmc_reg_map *map = pmcdev->map;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_reg_map *map = pmc->map;
u32 reg;
if (!map->etr3_offset)
@@ -142,7 +145,7 @@ static ssize_t etr3_show(struct device *dev,
mutex_lock(&pmcdev->lock);
- reg = pmc_core_reg_read(pmcdev, map->etr3_offset);
+ reg = pmc_core_reg_read(pmc, map->etr3_offset);
reg &= ETR3_CF9GR | ETR3_CF9LOCK;
mutex_unlock(&pmcdev->lock);
@@ -191,37 +194,37 @@ static const struct attribute_group *pmc_dev_groups[] = {
static int pmc_core_dev_state_get(void *data, u64 *val)
{
- struct pmc_dev *pmcdev = data;
- const struct pmc_reg_map *map = pmcdev->map;
+ struct pmc *pmc = data;
+ const struct pmc_reg_map *map = pmc->map;
u32 value;
- value = pmc_core_reg_read(pmcdev, map->slp_s0_offset);
- *val = pmc_core_adjust_slp_s0_step(pmcdev, value);
+ value = pmc_core_reg_read(pmc, map->slp_s0_offset);
+ *val = pmc_core_adjust_slp_s0_step(pmc, value);
return 0;
}
DEFINE_DEBUGFS_ATTRIBUTE(pmc_core_dev_state, pmc_core_dev_state_get, NULL, "%llu\n");
-static int pmc_core_check_read_lock_bit(struct pmc_dev *pmcdev)
+static int pmc_core_check_read_lock_bit(struct pmc *pmc)
{
u32 value;
- value = pmc_core_reg_read(pmcdev, pmcdev->map->pm_cfg_offset);
- return value & BIT(pmcdev->map->pm_read_disable_bit);
+ value = pmc_core_reg_read(pmc, pmc->map->pm_cfg_offset);
+ return value & BIT(pmc->map->pm_read_disable_bit);
}
-static void pmc_core_slps0_display(struct pmc_dev *pmcdev, struct device *dev,
+static void pmc_core_slps0_display(struct pmc *pmc, struct device *dev,
struct seq_file *s)
{
- const struct pmc_bit_map **maps = pmcdev->map->slps0_dbg_maps;
+ const struct pmc_bit_map **maps = pmc->map->slps0_dbg_maps;
const struct pmc_bit_map *map;
- int offset = pmcdev->map->slps0_dbg_offset;
+ int offset = pmc->map->slps0_dbg_offset;
u32 data;
while (*maps) {
map = *maps;
- data = pmc_core_reg_read(pmcdev, offset);
+ data = pmc_core_reg_read(pmc, offset);
offset += 4;
while (map->name) {
if (dev)
@@ -248,7 +251,7 @@ static int pmc_core_lpm_get_arr_size(const struct pmc_bit_map **maps)
return idx;
}
-static void pmc_core_lpm_display(struct pmc_dev *pmcdev, struct device *dev,
+static void pmc_core_lpm_display(struct pmc *pmc, struct device *dev,
struct seq_file *s, u32 offset,
const char *str,
const struct pmc_bit_map **maps)
@@ -262,7 +265,7 @@ static void pmc_core_lpm_display(struct pmc_dev *pmcdev, struct device *dev,
return;
for (index = 0; index < arr_size; index++) {
- lpm_regs[index] = pmc_core_reg_read(pmcdev, offset);
+ lpm_regs[index] = pmc_core_reg_read(pmc, offset);
offset += 4;
}
@@ -291,9 +294,9 @@ static void pmc_core_lpm_display(struct pmc_dev *pmcdev, struct device *dev,
static bool slps0_dbg_latch;
-static inline u8 pmc_core_reg_read_byte(struct pmc_dev *pmcdev, int offset)
+static inline u8 pmc_core_reg_read_byte(struct pmc *pmc, int offset)
{
- return readb(pmcdev->regbase + offset);
+ return readb(pmc->regbase + offset);
}
static void pmc_core_display_map(struct seq_file *s, int index, int idx, int ip,
@@ -307,19 +310,20 @@ static void pmc_core_display_map(struct seq_file *s, int index, int idx, int ip,
static int pmc_core_ppfear_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map **maps = pmcdev->map->pfear_sts;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_bit_map **maps = pmc->map->pfear_sts;
u8 pf_regs[PPFEAR_MAX_NUM_ENTRIES];
int index, iter, idx, ip = 0;
- iter = pmcdev->map->ppfear0_offset;
+ iter = pmc->map->ppfear0_offset;
- for (index = 0; index < pmcdev->map->ppfear_buckets &&
+ for (index = 0; index < pmc->map->ppfear_buckets &&
index < PPFEAR_MAX_NUM_ENTRIES; index++, iter++)
- pf_regs[index] = pmc_core_reg_read_byte(pmcdev, iter);
+ pf_regs[index] = pmc_core_reg_read_byte(pmc, iter);
for (idx = 0; maps[idx]; idx++) {
for (index = 0; maps[idx][index].name &&
- index < pmcdev->map->ppfear_buckets * 8; ip++, index++)
+ index < pmc->map->ppfear_buckets * 8; ip++, index++)
pmc_core_display_map(s, index, idx, ip,
pf_regs[index / 8], maps);
}
@@ -329,37 +333,38 @@ static int pmc_core_ppfear_show(struct seq_file *s, void *unused)
DEFINE_SHOW_ATTRIBUTE(pmc_core_ppfear);
/* This function should return link status, 0 means ready */
-static int pmc_core_mtpmc_link_status(struct pmc_dev *pmcdev)
+static int pmc_core_mtpmc_link_status(struct pmc *pmc)
{
u32 value;
- value = pmc_core_reg_read(pmcdev, SPT_PMC_PM_STS_OFFSET);
+ value = pmc_core_reg_read(pmc, SPT_PMC_PM_STS_OFFSET);
return value & BIT(SPT_PMC_MSG_FULL_STS_BIT);
}
-static int pmc_core_send_msg(struct pmc_dev *pmcdev, u32 *addr_xram)
+static int pmc_core_send_msg(struct pmc *pmc, u32 *addr_xram)
{
u32 dest;
int timeout;
for (timeout = NUM_RETRIES; timeout > 0; timeout--) {
- if (pmc_core_mtpmc_link_status(pmcdev) == 0)
+ if (pmc_core_mtpmc_link_status(pmc) == 0)
break;
msleep(5);
}
- if (timeout <= 0 && pmc_core_mtpmc_link_status(pmcdev))
+ if (timeout <= 0 && pmc_core_mtpmc_link_status(pmc))
return -EBUSY;
dest = (*addr_xram & MTPMC_MASK) | (1U << 1);
- pmc_core_reg_write(pmcdev, SPT_PMC_MTPMC_OFFSET, dest);
+ pmc_core_reg_write(pmc, SPT_PMC_MTPMC_OFFSET, dest);
return 0;
}
static int pmc_core_mphy_pg_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map *map = pmcdev->map->mphy_sts;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_bit_map *map = pmc->map->mphy_sts;
u32 mphy_core_reg_low, mphy_core_reg_high;
u32 val_low, val_high;
int index, err = 0;
@@ -374,21 +379,21 @@ static int pmc_core_mphy_pg_show(struct seq_file *s, void *unused)
mutex_lock(&pmcdev->lock);
- if (pmc_core_send_msg(pmcdev, &mphy_core_reg_low) != 0) {
+ if (pmc_core_send_msg(pmc, &mphy_core_reg_low) != 0) {
err = -EBUSY;
goto out_unlock;
}
msleep(10);
- val_low = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
+ val_low = pmc_core_reg_read(pmc, SPT_PMC_MFPMC_OFFSET);
- if (pmc_core_send_msg(pmcdev, &mphy_core_reg_high) != 0) {
+ if (pmc_core_send_msg(pmc, &mphy_core_reg_high) != 0) {
err = -EBUSY;
goto out_unlock;
}
msleep(10);
- val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
+ val_high = pmc_core_reg_read(pmc, SPT_PMC_MFPMC_OFFSET);
for (index = 0; index < 8 && map[index].name; index++) {
seq_printf(s, "%-32s\tState: %s\n",
@@ -413,7 +418,8 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_mphy_pg);
static int pmc_core_pll_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map *map = pmcdev->map->pll_sts;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_bit_map *map = pmc->map->pll_sts;
u32 mphy_common_reg, val;
int index, err = 0;
@@ -425,14 +431,14 @@ static int pmc_core_pll_show(struct seq_file *s, void *unused)
mphy_common_reg = (SPT_PMC_MPHY_COM_STS_0 << 16);
mutex_lock(&pmcdev->lock);
- if (pmc_core_send_msg(pmcdev, &mphy_common_reg) != 0) {
+ if (pmc_core_send_msg(pmc, &mphy_common_reg) != 0) {
err = -EBUSY;
goto out_unlock;
}
/* Observed PMC HW response latency for MTPMC-MFPMC is ~10 ms */
msleep(10);
- val = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
+ val = pmc_core_reg_read(pmc, SPT_PMC_MFPMC_OFFSET);
for (index = 0; map[index].name ; index++) {
seq_printf(s, "%-32s\tState: %s\n",
@@ -448,7 +454,8 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_pll);
int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value)
{
- const struct pmc_reg_map *map = pmcdev->map;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_reg_map *map = pmc->map;
u32 reg;
int err = 0;
@@ -459,9 +466,9 @@ int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value)
goto out_unlock;
}
- reg = pmc_core_reg_read(pmcdev, map->ltr_ignore_offset);
+ reg = pmc_core_reg_read(pmc, map->ltr_ignore_offset);
reg |= BIT(value);
- pmc_core_reg_write(pmcdev, map->ltr_ignore_offset, reg);
+ pmc_core_reg_write(pmc, map->ltr_ignore_offset, reg);
out_unlock:
mutex_unlock(&pmcdev->lock);
@@ -509,7 +516,8 @@ static const struct file_operations pmc_core_ltr_ignore_ops = {
static void pmc_core_slps0_dbg_latch(struct pmc_dev *pmcdev, bool reset)
{
- const struct pmc_reg_map *map = pmcdev->map;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_reg_map *map = pmc->map;
u32 fd;
mutex_lock(&pmcdev->lock);
@@ -517,12 +525,12 @@ static void pmc_core_slps0_dbg_latch(struct pmc_dev *pmcdev, bool reset)
if (!reset && !slps0_dbg_latch)
goto out_unlock;
- fd = pmc_core_reg_read(pmcdev, map->slps0_dbg_offset);
+ fd = pmc_core_reg_read(pmc, map->slps0_dbg_offset);
if (reset)
fd &= ~CNP_PMC_LATCH_SLPS0_EVENTS;
else
fd |= CNP_PMC_LATCH_SLPS0_EVENTS;
- pmc_core_reg_write(pmcdev, map->slps0_dbg_offset, fd);
+ pmc_core_reg_write(pmc, map->slps0_dbg_offset, fd);
slps0_dbg_latch = false;
@@ -535,7 +543,7 @@ static int pmc_core_slps0_dbg_show(struct seq_file *s, void *unused)
struct pmc_dev *pmcdev = s->private;
pmc_core_slps0_dbg_latch(pmcdev, false);
- pmc_core_slps0_display(pmcdev, NULL, s);
+ pmc_core_slps0_display(pmcdev->pmcs[PMC_IDX_MAIN], NULL, s);
pmc_core_slps0_dbg_latch(pmcdev, true);
return 0;
@@ -578,8 +586,8 @@ static u32 convert_ltr_scale(u32 val)
static int pmc_core_ltr_show(struct seq_file *s, void *unused)
{
- struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map *map = pmcdev->map->ltr_show_sts;
+ struct pmc *pmc = s->private;
+ const struct pmc_bit_map *map = pmc->map->ltr_show_sts;
u64 decoded_snoop_ltr, decoded_non_snoop_ltr;
u32 ltr_raw_data, scale, val;
u16 snoop_ltr, nonsnoop_ltr;
@@ -587,7 +595,7 @@ static int pmc_core_ltr_show(struct seq_file *s, void *unused)
for (index = 0; map[index].name ; index++) {
decoded_snoop_ltr = decoded_non_snoop_ltr = 0;
- ltr_raw_data = pmc_core_reg_read(pmcdev,
+ ltr_raw_data = pmc_core_reg_read(pmc,
map[index].bit_mask);
snoop_ltr = ltr_raw_data & ~MTPMC_MASK;
nonsnoop_ltr = (ltr_raw_data >> 0x10) & ~MTPMC_MASK;
@@ -613,10 +621,10 @@ static int pmc_core_ltr_show(struct seq_file *s, void *unused)
}
DEFINE_SHOW_ATTRIBUTE(pmc_core_ltr);
-static inline u64 adjust_lpm_residency(struct pmc_dev *pmcdev, u32 offset,
+static inline u64 adjust_lpm_residency(struct pmc *pmc, u32 offset,
const int lpm_adj_x2)
{
- u64 lpm_res = pmc_core_reg_read(pmcdev, offset);
+ u64 lpm_res = pmc_core_reg_read(pmc, offset);
return GET_X2_COUNTER((u64)lpm_adj_x2 * lpm_res);
}
@@ -624,15 +632,16 @@ static inline u64 adjust_lpm_residency(struct pmc_dev *pmcdev, u32 offset,
static int pmc_core_substate_res_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- const int lpm_adj_x2 = pmcdev->map->lpm_res_counter_step_x2;
- u32 offset = pmcdev->map->lpm_residency_offset;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const int lpm_adj_x2 = pmc->map->lpm_res_counter_step_x2;
+ u32 offset = pmc->map->lpm_residency_offset;
int i, mode;
seq_printf(s, "%-10s %-15s\n", "Substate", "Residency");
pmc_for_each_mode(i, mode, pmcdev) {
seq_printf(s, "%-10s %-15llu\n", pmc_lpm_modes[mode],
- adjust_lpm_residency(pmcdev, offset + (4 * mode), lpm_adj_x2));
+ adjust_lpm_residency(pmc, offset + (4 * mode), lpm_adj_x2));
}
return 0;
@@ -642,10 +651,11 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_res);
static int pmc_core_substate_sts_regs_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map **maps = pmcdev->map->lpm_sts;
- u32 offset = pmcdev->map->lpm_status_offset;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_bit_map **maps = pmc->map->lpm_sts;
+ u32 offset = pmc->map->lpm_status_offset;
- pmc_core_lpm_display(pmcdev, NULL, s, offset, "STATUS", maps);
+ pmc_core_lpm_display(pmc, NULL, s, offset, "STATUS", maps);
return 0;
}
@@ -654,10 +664,11 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_sts_regs);
static int pmc_core_substate_l_sts_regs_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map **maps = pmcdev->map->lpm_sts;
- u32 offset = pmcdev->map->lpm_live_status_offset;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_bit_map **maps = pmc->map->lpm_sts;
+ u32 offset = pmc->map->lpm_live_status_offset;
- pmc_core_lpm_display(pmcdev, NULL, s, offset, "LIVE_STATUS", maps);
+ pmc_core_lpm_display(pmc, NULL, s, offset, "LIVE_STATUS", maps);
return 0;
}
@@ -678,11 +689,12 @@ static void pmc_core_substate_req_header_show(struct seq_file *s)
static int pmc_core_substate_req_regs_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map **maps = pmcdev->map->lpm_sts;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_bit_map **maps = pmc->map->lpm_sts;
const struct pmc_bit_map *map;
- const int num_maps = pmcdev->map->lpm_num_maps;
- u32 sts_offset = pmcdev->map->lpm_status_offset;
- u32 *lpm_req_regs = pmcdev->lpm_req_regs;
+ const int num_maps = pmc->map->lpm_num_maps;
+ u32 sts_offset = pmc->map->lpm_status_offset;
+ u32 *lpm_req_regs = pmc->lpm_req_regs;
int mp;
/* Display the header */
@@ -703,7 +715,7 @@ static int pmc_core_substate_req_regs_show(struct seq_file *s, void *unused)
req_mask |= lpm_req_regs[mp + (mode * num_maps)];
/* Get the last latched status for this map */
- lpm_status = pmc_core_reg_read(pmcdev, sts_offset + (mp * 4));
+ lpm_status = pmc_core_reg_read(pmc, sts_offset + (mp * 4));
/* Loop over elements in this map */
map = maps[mp];
@@ -746,11 +758,12 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_req_regs);
static int pmc_core_lpm_latch_mode_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
bool c10;
u32 reg;
int idx, mode;
- reg = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_sts_latch_en_offset);
+ reg = pmc_core_reg_read(pmc, pmc->map->lpm_sts_latch_en_offset);
if (reg & LPM_STS_LATCH_MODE) {
seq_puts(s, "c10");
c10 = false;
@@ -777,6 +790,7 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file,
{
struct seq_file *s = file->private_data;
struct pmc_dev *pmcdev = s->private;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
bool clear = false, c10 = false;
unsigned char buf[8];
int idx, m, mode;
@@ -813,9 +827,9 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file,
if (clear) {
mutex_lock(&pmcdev->lock);
- reg = pmc_core_reg_read(pmcdev, pmcdev->map->etr3_offset);
+ reg = pmc_core_reg_read(pmc, pmc->map->etr3_offset);
reg |= ETR3_CLEAR_LPM_EVENTS;
- pmc_core_reg_write(pmcdev, pmcdev->map->etr3_offset, reg);
+ pmc_core_reg_write(pmc, pmc->map->etr3_offset, reg);
mutex_unlock(&pmcdev->lock);
@@ -825,9 +839,9 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file,
if (c10) {
mutex_lock(&pmcdev->lock);
- reg = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_sts_latch_en_offset);
+ reg = pmc_core_reg_read(pmc, pmc->map->lpm_sts_latch_en_offset);
reg &= ~LPM_STS_LATCH_MODE;
- pmc_core_reg_write(pmcdev, pmcdev->map->lpm_sts_latch_en_offset, reg);
+ pmc_core_reg_write(pmc, pmc->map->lpm_sts_latch_en_offset, reg);
mutex_unlock(&pmcdev->lock);
@@ -840,7 +854,7 @@ static ssize_t pmc_core_lpm_latch_mode_write(struct file *file,
*/
reg = LPM_STS_LATCH_MODE | BIT(mode);
mutex_lock(&pmcdev->lock);
- pmc_core_reg_write(pmcdev, pmcdev->map->lpm_sts_latch_en_offset, reg);
+ pmc_core_reg_write(pmc, pmc->map->lpm_sts_latch_en_offset, reg);
mutex_unlock(&pmcdev->lock);
return count;
@@ -849,8 +863,8 @@ DEFINE_PMC_CORE_ATTR_WRITE(pmc_core_lpm_latch_mode);
static int pmc_core_pkgc_show(struct seq_file *s, void *unused)
{
- struct pmc_dev *pmcdev = s->private;
- const struct pmc_bit_map *map = pmcdev->map->msr_sts;
+ struct pmc *pmc = s->private;
+ const struct pmc_bit_map *map = pmc->map->msr_sts;
u64 pcstate_count;
int index;
@@ -901,6 +915,7 @@ static bool pmc_core_pri_verify(u32 lpm_pri, u8 *mode_order)
static void pmc_core_get_low_power_modes(struct platform_device *pdev)
{
struct pmc_dev *pmcdev = platform_get_drvdata(pdev);
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
u8 pri_order[LPM_MAX_NUM_MODES] = LPM_DEFAULT_PRI;
u8 mode_order[LPM_MAX_NUM_MODES];
u32 lpm_pri;
@@ -908,10 +923,10 @@ static void pmc_core_get_low_power_modes(struct platform_device *pdev)
int mode, i, p;
/* Use LPM Maps to indicate support for substates */
- if (!pmcdev->map->lpm_num_maps)
+ if (!pmc->map->lpm_num_maps)
return;
- lpm_en = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_en_offset);
+ lpm_en = pmc_core_reg_read(pmc, pmc->map->lpm_en_offset);
/* For MTL, BIT 31 is not an lpm mode but a enable bit.
* Lower byte is enough to cover the number of lpm modes for all
* platforms and hence mask the upper 3 bytes.
@@ -919,7 +934,7 @@ static void pmc_core_get_low_power_modes(struct platform_device *pdev)
pmcdev->num_lpm_modes = hweight32(lpm_en & 0xFF);
/* Read 32 bit LPM_PRI register */
- lpm_pri = pmc_core_reg_read(pmcdev, pmcdev->map->lpm_priority_offset);
+ lpm_pri = pmc_core_reg_read(pmc, pmc->map->lpm_priority_offset);
/*
@@ -948,21 +963,21 @@ static void pmc_core_get_low_power_modes(struct platform_device *pdev)
}
}
-int get_primary_reg_base(struct pmc_dev *pmcdev)
+int get_primary_reg_base(struct pmc *pmc)
{
u64 slp_s0_addr;
if (lpit_read_residency_count_address(&slp_s0_addr)) {
- pmcdev->base_addr = PMC_BASE_ADDR_DEFAULT;
+ pmc->base_addr = PMC_BASE_ADDR_DEFAULT;
- if (page_is_ram(PHYS_PFN(pmcdev->base_addr)))
+ if (page_is_ram(PHYS_PFN(pmc->base_addr)))
return -ENODEV;
} else {
- pmcdev->base_addr = slp_s0_addr - pmcdev->map->slp_s0_offset;
+ pmc->base_addr = slp_s0_addr - pmc->map->slp_s0_offset;
}
- pmcdev->regbase = ioremap(pmcdev->base_addr, pmcdev->map->regmap_length);
- if (!pmcdev->regbase)
+ pmc->regbase = ioremap(pmc->base_addr, pmc->map->regmap_length);
+ if (!pmc->regbase)
return -ENOMEM;
return 0;
}
@@ -974,36 +989,37 @@ static void pmc_core_dbgfs_unregister(struct pmc_dev *pmcdev)
static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
{
+ struct pmc *primary_pmc = pmcdev->pmcs[PMC_IDX_MAIN];
struct dentry *dir;
dir = debugfs_create_dir("pmc_core", NULL);
pmcdev->dbgfs_dir = dir;
- debugfs_create_file("slp_s0_residency_usec", 0444, dir, pmcdev,
+ debugfs_create_file("slp_s0_residency_usec", 0444, dir, primary_pmc,
&pmc_core_dev_state);
- if (pmcdev->map->pfear_sts)
+ if (primary_pmc->map->pfear_sts)
debugfs_create_file("pch_ip_power_gating_status", 0444, dir,
pmcdev, &pmc_core_ppfear_fops);
debugfs_create_file("ltr_ignore", 0644, dir, pmcdev,
&pmc_core_ltr_ignore_ops);
- debugfs_create_file("ltr_show", 0444, dir, pmcdev, &pmc_core_ltr_fops);
+ debugfs_create_file("ltr_show", 0444, dir, primary_pmc, &pmc_core_ltr_fops);
- debugfs_create_file("package_cstate_show", 0444, dir, pmcdev,
+ debugfs_create_file("package_cstate_show", 0444, dir, primary_pmc,
&pmc_core_pkgc_fops);
- if (pmcdev->map->pll_sts)
+ if (primary_pmc->map->pll_sts)
debugfs_create_file("pll_status", 0444, dir, pmcdev,
&pmc_core_pll_fops);
- if (pmcdev->map->mphy_sts)
+ if (primary_pmc->map->mphy_sts)
debugfs_create_file("mphy_core_lanes_power_gating_status",
0444, dir, pmcdev,
&pmc_core_mphy_pg_fops);
- if (pmcdev->map->slps0_dbg_maps) {
+ if (primary_pmc->map->slps0_dbg_maps) {
debugfs_create_file("slp_s0_debug_status", 0444,
dir, pmcdev,
&pmc_core_slps0_dbg_fops);
@@ -1012,13 +1028,13 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
dir, &slps0_dbg_latch);
}
- if (pmcdev->map->lpm_en_offset) {
+ if (primary_pmc->map->lpm_en_offset) {
debugfs_create_file("substate_residencies", 0444,
pmcdev->dbgfs_dir, pmcdev,
&pmc_core_substate_res_fops);
}
- if (pmcdev->map->lpm_status_offset) {
+ if (primary_pmc->map->lpm_status_offset) {
debugfs_create_file("substate_status_registers", 0444,
pmcdev->dbgfs_dir, pmcdev,
&pmc_core_substate_sts_regs_fops);
@@ -1030,7 +1046,7 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
&pmc_core_lpm_latch_mode_fops);
}
- if (pmcdev->lpm_req_regs) {
+ if (primary_pmc->lpm_req_regs) {
debugfs_create_file("substate_requirements", 0444,
pmcdev->dbgfs_dir, pmcdev,
&pmc_core_substate_req_regs_fops);
@@ -1081,16 +1097,16 @@ static int quirk_xtal_ignore(const struct dmi_system_id *id)
return 0;
}
-static void pmc_core_xtal_ignore(struct pmc_dev *pmcdev)
+static void pmc_core_xtal_ignore(struct pmc *pmc)
{
u32 value;
- value = pmc_core_reg_read(pmcdev, pmcdev->map->pm_vric1_offset);
+ value = pmc_core_reg_read(pmc, pmc->map->pm_vric1_offset);
/* 24MHz Crystal Shutdown Qualification Disable */
value |= SPT_PMC_VRIC1_XTALSDQDIS;
/* Low Voltage Mode Enable */
value &= ~SPT_PMC_VRIC1_SLPS0LVEN;
- pmc_core_reg_write(pmcdev, pmcdev->map->pm_vric1_offset, value);
+ pmc_core_reg_write(pmc, pmc->map->pm_vric1_offset, value);
}
static const struct dmi_system_id pmc_core_dmi_table[] = {
@@ -1105,12 +1121,12 @@ static const struct dmi_system_id pmc_core_dmi_table[] = {
{}
};
-static void pmc_core_do_dmi_quirks(struct pmc_dev *pmcdev)
+static void pmc_core_do_dmi_quirks(struct pmc *pmc)
{
dmi_check_system(pmc_core_dmi_table);
if (xtal_ignore)
- pmc_core_xtal_ignore(pmcdev);
+ pmc_core_xtal_ignore(pmc);
}
static int pmc_core_probe(struct platform_device *pdev)
@@ -1119,6 +1135,7 @@ static int pmc_core_probe(struct platform_device *pdev)
struct pmc_dev *pmcdev;
const struct x86_cpu_id *cpu_id;
int (*core_init)(struct pmc_dev *pmcdev);
+ struct pmc *primary_pmc;
int ret;
if (device_initialized)
@@ -1137,6 +1154,12 @@ static int pmc_core_probe(struct platform_device *pdev)
core_init = (int (*)(struct pmc_dev *))cpu_id->driver_data;
+ /* Primary PMC */
+ primary_pmc = devm_kzalloc(&pdev->dev, sizeof(*primary_pmc), GFP_KERNEL);
+ if (!primary_pmc)
+ return -ENOMEM;
+ pmcdev->pmcs[PMC_IDX_MAIN] = primary_pmc;
+
/*
* Coffee Lake has CPU ID of Kaby Lake and Cannon Lake PCH. So here
* Sunrisepoint PCH regmap can't be used. Use Cannon Lake PCH regmap
@@ -1152,13 +1175,13 @@ static int pmc_core_probe(struct platform_device *pdev)
return ret;
}
- pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit(pmcdev);
+ pmcdev->pmc_xram_read_bit = pmc_core_check_read_lock_bit(primary_pmc);
pmc_core_get_low_power_modes(pdev);
- pmc_core_do_dmi_quirks(pmcdev);
+ pmc_core_do_dmi_quirks(primary_pmc);
pmc_core_dbgfs_register(pmcdev);
pm_report_max_hw_sleep(FIELD_MAX(SLP_S0_RES_COUNTER_MASK) *
- pmc_core_adjust_slp_s0_step(pmcdev, 1));
+ pmc_core_adjust_slp_s0_step(primary_pmc, 1));
device_initialized = true;
dev_info(&pdev->dev, " initialized\n");
@@ -1169,11 +1192,18 @@ static int pmc_core_probe(struct platform_device *pdev)
static void pmc_core_remove(struct platform_device *pdev)
{
struct pmc_dev *pmcdev = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+ struct pmc *pmc = pmcdev->pmcs[i];
+
+ if (pmc)
+ iounmap(pmc->regbase);
+ }
pmc_core_dbgfs_unregister(pmcdev);
platform_set_drvdata(pdev, NULL);
mutex_destroy(&pmcdev->lock);
- iounmap(pmcdev->regbase);
}
static bool warn_on_s0ix_failures;
@@ -1183,6 +1213,7 @@ MODULE_PARM_DESC(warn_on_s0ix_failures, "Check and warn for S0ix failures");
static __maybe_unused int pmc_core_suspend(struct device *dev)
{
struct pmc_dev *pmcdev = dev_get_drvdata(dev);
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
/* Check if the syspend will actually use S0ix */
if (pm_suspend_via_firmware())
@@ -1193,7 +1224,7 @@ static __maybe_unused int pmc_core_suspend(struct device *dev)
return -EIO;
/* Save S0ix residency for checking later */
- if (pmc_core_dev_state_get(pmcdev, &pmcdev->s0ix_counter))
+ if (pmc_core_dev_state_get(pmc, &pmcdev->s0ix_counter))
return -EIO;
return 0;
@@ -1216,7 +1247,7 @@ static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev)
{
u64 s0ix_counter;
- if (pmc_core_dev_state_get(pmcdev, &s0ix_counter))
+ if (pmc_core_dev_state_get(pmcdev->pmcs[PMC_IDX_MAIN], &s0ix_counter))
return false;
pm_report_hw_sleep_time((u32)(s0ix_counter - pmcdev->s0ix_counter));
@@ -1229,9 +1260,10 @@ static inline bool pmc_core_is_s0ix_failed(struct pmc_dev *pmcdev)
int pmc_core_resume_common(struct pmc_dev *pmcdev)
{
- const struct pmc_bit_map **maps = pmcdev->map->lpm_sts;
- int offset = pmcdev->map->lpm_status_offset;
struct device *dev = &pmcdev->pdev->dev;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const struct pmc_bit_map **maps = pmc->map->lpm_sts;
+ int offset = pmc->map->lpm_status_offset;
/* Check if the syspend used S0ix */
if (pm_suspend_via_firmware())
@@ -1253,10 +1285,10 @@ int pmc_core_resume_common(struct pmc_dev *pmcdev)
/* The real interesting case - S0ix failed - lets ask PMC why. */
dev_warn(dev, "CPU did not enter SLP_S0!!! (S0ix cnt=%llu)\n",
pmcdev->s0ix_counter);
- if (pmcdev->map->slps0_dbg_maps)
- pmc_core_slps0_display(pmcdev, dev, NULL);
- if (pmcdev->map->lpm_sts)
- pmc_core_lpm_display(pmcdev, dev, NULL, offset, "STATUS", maps);
+ if (pmc->map->slps0_dbg_maps)
+ pmc_core_slps0_display(pmc, dev, NULL);
+ if (pmc->map->lpm_sts)
+ pmc_core_lpm_display(pmc, dev, NULL, offset, "STATUS", maps);
return 0;
}
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index a672659b8659..4f21d452a033 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -19,6 +19,7 @@
#define SLP_S0_RES_COUNTER_MASK GENMASK(31, 0)
#define PMC_BASE_ADDR_DEFAULT 0xFE000000
+#define MAX_NUM_PMC 3
/* Sunrise Point Power Management Controller PCI Device ID */
#define SPT_PMC_PCI_DEVICE_ID 0x9d21
@@ -319,11 +320,25 @@ struct pmc_reg_map {
};
/**
- * struct pmc_dev - pmc device structure
+ * struct pmc - pmc private info structure
* @base_addr: contains pmc base address
* @regbase: pointer to io-remapped memory location
* @map: pointer to pmc_reg_map struct that contains platform
* specific attributes
+ * @lpm_req_regs: List of substate requirements
+ *
+ * pmc contains info about one power management controller device.
+ */
+struct pmc {
+ u64 base_addr;
+ void __iomem *regbase;
+ const struct pmc_reg_map *map;
+ u32 *lpm_req_regs;
+};
+
+/**
+ * struct pmc_dev - pmc device structure
+ * @devs: pointer to an array of pmc pointers
* @pdev: pointer to platform_device struct
* @dbgfs_dir: path to debugfs interface
* @pmc_xram_read_bit: flag to indicate whether PMC XRAM shadow registers
@@ -333,15 +348,12 @@ struct pmc_reg_map {
* @s0ix_counter: S0ix residency (step adjusted)
* @num_lpm_modes: Count of enabled modes
* @lpm_en_modes: Array of enabled modes from lowest to highest priority
- * @lpm_req_regs: List of substate requirements
* @resume: Function to perform platform specific resume
*
* pmc_dev contains info about power management controller device.
*/
struct pmc_dev {
- u32 base_addr;
- void __iomem *regbase;
- const struct pmc_reg_map *map;
+ struct pmc *pmcs[MAX_NUM_PMC];
struct dentry *dbgfs_dir;
struct platform_device *pdev;
int pmc_xram_read_bit;
@@ -351,8 +363,19 @@ struct pmc_dev {
u64 s0ix_counter;
int num_lpm_modes;
int lpm_en_modes[LPM_MAX_NUM_MODES];
- u32 *lpm_req_regs;
int (*resume)(struct pmc_dev *pmcdev);
+
+ bool has_die_c6;
+ u32 die_c6_offset;
+ struct telem_endpoint *punit_ep;
+};
+
+enum pmc_index {
+ PMC_IDX_MAIN,
+ PMC_IDX_SOC = PMC_IDX_MAIN,
+ PMC_IDX_IOE,
+ PMC_IDX_PCH,
+ PMC_IDX_MAX
};
extern const struct pmc_bit_map msr_map[];
@@ -425,7 +448,7 @@ extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev);
extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value);
int pmc_core_resume_common(struct pmc_dev *pmcdev);
-int get_primary_reg_base(struct pmc_dev *pmcdev);
+int get_primary_reg_base(struct pmc *pmc);
int spt_core_init(struct pmc_dev *pmcdev);
int cnp_core_init(struct pmc_dev *pmcdev);
diff --git a/drivers/platform/x86/intel/pmc/icl.c b/drivers/platform/x86/intel/pmc/icl.c
index a671d7e86431..d08e3174230d 100644
--- a/drivers/platform/x86/intel/pmc/icl.c
+++ b/drivers/platform/x86/intel/pmc/icl.c
@@ -52,6 +52,8 @@ const struct pmc_reg_map icl_reg_map = {
int icl_core_init(struct pmc_dev *pmcdev)
{
- pmcdev->map = &icl_reg_map;
- return get_primary_reg_base(pmcdev);
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+
+ pmc->map = &icl_reg_map;
+ return get_primary_reg_base(pmc);
}
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index a2fc96f9ef11..69df6d7fee56 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -508,15 +508,16 @@ static int mtl_resume(struct pmc_dev *pmcdev)
int mtl_core_init(struct pmc_dev *pmcdev)
{
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_SOC];
int ret;
- pmcdev->map = &mtl_socm_reg_map;
+ pmc->map = &mtl_socm_reg_map;
mtl_d3_fixup();
pmcdev->resume = mtl_resume;
- ret = get_primary_reg_base(pmcdev);
+ ret = get_primary_reg_base(pmc);
if (ret)
return ret;
diff --git a/drivers/platform/x86/intel/pmc/spt.c b/drivers/platform/x86/intel/pmc/spt.c
index f34015692bb8..4b6f5cbda16c 100644
--- a/drivers/platform/x86/intel/pmc/spt.c
+++ b/drivers/platform/x86/intel/pmc/spt.c
@@ -136,6 +136,8 @@ const struct pmc_reg_map spt_reg_map = {
int spt_core_init(struct pmc_dev *pmcdev)
{
- pmcdev->map = &spt_reg_map;
- return get_primary_reg_base(pmcdev);
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+
+ pmc->map = &spt_reg_map;
+ return get_primary_reg_base(pmc);
}
diff --git a/drivers/platform/x86/intel/pmc/tgl.c b/drivers/platform/x86/intel/pmc/tgl.c
index 90807bd947ed..2449940102db 100644
--- a/drivers/platform/x86/intel/pmc/tgl.c
+++ b/drivers/platform/x86/intel/pmc/tgl.c
@@ -208,7 +208,8 @@ const struct pmc_reg_map tgl_reg_map = {
void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev)
{
struct pmc_dev *pmcdev = platform_get_drvdata(pdev);
- const int num_maps = pmcdev->map->lpm_num_maps;
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
+ const int num_maps = pmc->map->lpm_num_maps;
u32 lpm_size = LPM_MAX_NUM_MODES * num_maps * 4;
union acpi_object *out_obj;
struct acpi_device *adev;
@@ -246,7 +247,7 @@ void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev)
goto free_acpi_obj;
memcpy(lpm_req_regs, addr, lpm_size);
- pmcdev->lpm_req_regs = lpm_req_regs;
+ pmc->lpm_req_regs = lpm_req_regs;
free_acpi_obj:
ACPI_FREE(out_obj);
@@ -254,10 +255,11 @@ void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev)
int tgl_core_init(struct pmc_dev *pmcdev)
{
+ struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
int ret;
- pmcdev->map = &tgl_reg_map;
- ret = get_primary_reg_base(pmcdev);
+ pmc->map = &tgl_reg_map;
+ ret = get_primary_reg_base(pmc);
if (ret)
return ret;
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 4/8] platform/x86:intel/pmc: Enable debugfs multiple PMC support
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
` (2 preceding siblings ...)
2023-06-13 22:53 ` [PATCH 3/8] platform/x86:intel/pmc: Add support to handle multiple PMCs Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-13 22:53 ` [PATCH 5/8] platform/x86:intel/pmc: Discover PMC devices Rajvi Jingar
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee, Rajvi Jingar
From: Xi Pardee <xi.pardee@intel.com>
Enable debugfs support for multiple PMC. These debugfs attributes
show information for all enabled PMCs.
pch_ip_power_gating_status
substate_status_registers
substate_live_status_registers
ltr_show
ltr_ignore
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/core.c | 195 +++++++++++++++++---------
1 file changed, 129 insertions(+), 66 deletions(-)
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 8d774461dd29..5864d2e85706 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -252,7 +252,7 @@ static int pmc_core_lpm_get_arr_size(const struct pmc_bit_map **maps)
}
static void pmc_core_lpm_display(struct pmc *pmc, struct device *dev,
- struct seq_file *s, u32 offset,
+ struct seq_file *s, u32 offset, int pmc_index,
const char *str,
const struct pmc_bit_map **maps)
{
@@ -271,19 +271,19 @@ static void pmc_core_lpm_display(struct pmc *pmc, struct device *dev,
for (idx = 0; idx < arr_size; idx++) {
if (dev)
- dev_info(dev, "\nLPM_%s_%d:\t0x%x\n", str, idx,
+ dev_info(dev, "\nPMC%d:LPM_%s_%d:\t0x%x\n", pmc_index, str, idx,
lpm_regs[idx]);
if (s)
- seq_printf(s, "\nLPM_%s_%d:\t0x%x\n", str, idx,
+ seq_printf(s, "\nPMC%d:LPM_%s_%d:\t0x%x\n", pmc_index, str, idx,
lpm_regs[idx]);
for (index = 0; maps[idx][index].name && index < len; index++) {
bit_mask = maps[idx][index].bit_mask;
if (dev)
- dev_info(dev, "%-30s %-30d\n",
+ dev_info(dev, "PMC%d:%-30s %-30d\n", pmc_index,
maps[idx][index].name,
lpm_regs[idx] & bit_mask ? 1 : 0);
if (s)
- seq_printf(s, "%-30s %-30d\n",
+ seq_printf(s, "PMC%d:%-30s %-30d\n", pmc_index,
maps[idx][index].name,
lpm_regs[idx] & bit_mask ? 1 : 0);
}
@@ -300,32 +300,40 @@ static inline u8 pmc_core_reg_read_byte(struct pmc *pmc, int offset)
}
static void pmc_core_display_map(struct seq_file *s, int index, int idx, int ip,
- u8 pf_reg, const struct pmc_bit_map **pf_map)
+ int pmc_index, u8 pf_reg, const struct pmc_bit_map **pf_map)
{
- seq_printf(s, "PCH IP: %-2d - %-32s\tState: %s\n",
- ip, pf_map[idx][index].name,
+ seq_printf(s, "PMC%d:PCH IP: %-2d - %-32s\tState: %s\n",
+ pmc_index, ip, pf_map[idx][index].name,
pf_map[idx][index].bit_mask & pf_reg ? "Off" : "On");
}
static int pmc_core_ppfear_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
- const struct pmc_bit_map **maps = pmc->map->pfear_sts;
- u8 pf_regs[PPFEAR_MAX_NUM_ENTRIES];
- int index, iter, idx, ip = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+ struct pmc *pmc = pmcdev->pmcs[i];
+ const struct pmc_bit_map **maps;
+ u8 pf_regs[PPFEAR_MAX_NUM_ENTRIES];
+ int index, iter, idx, ip = 0;
+
+ if (!pmc)
+ continue;
- iter = pmc->map->ppfear0_offset;
+ maps = pmc->map->pfear_sts;
+ iter = pmc->map->ppfear0_offset;
- for (index = 0; index < pmc->map->ppfear_buckets &&
- index < PPFEAR_MAX_NUM_ENTRIES; index++, iter++)
- pf_regs[index] = pmc_core_reg_read_byte(pmc, iter);
+ for (index = 0; index < pmc->map->ppfear_buckets &&
+ index < PPFEAR_MAX_NUM_ENTRIES; index++, iter++)
+ pf_regs[index] = pmc_core_reg_read_byte(pmc, iter);
- for (idx = 0; maps[idx]; idx++) {
- for (index = 0; maps[idx][index].name &&
- index < pmc->map->ppfear_buckets * 8; ip++, index++)
- pmc_core_display_map(s, index, idx, ip,
- pf_regs[index / 8], maps);
+ for (idx = 0; maps[idx]; idx++) {
+ for (index = 0; maps[idx][index].name &&
+ index < pmc->map->ppfear_buckets * 8; ip++, index++)
+ pmc_core_display_map(s, index, idx, ip, i,
+ pf_regs[index / 8], maps);
+ }
}
return 0;
@@ -454,26 +462,48 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_pll);
int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value)
{
- struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
- const struct pmc_reg_map *map = pmc->map;
+ struct pmc *pmc;
+ const struct pmc_reg_map *map;
u32 reg;
- int err = 0;
+ int pmc_index, ltr_index;
- mutex_lock(&pmcdev->lock);
+ ltr_index = value;
+ /* For platforms with multiple pmcs, ltr index value given by user
+ * is based on the contiguous indexes from ltr_show output.
+ * pmc index and ltr index needs to be calculated from it.
+ */
+ for (pmc_index = 0; pmc_index < ARRAY_SIZE(pmcdev->pmcs) && ltr_index > 0; pmc_index++) {
+ pmc = pmcdev->pmcs[pmc_index];
- if (value > map->ltr_ignore_max) {
- err = -EINVAL;
- goto out_unlock;
+ if (!pmc)
+ continue;
+
+ map = pmc->map;
+ if (ltr_index <= map->ltr_ignore_max)
+ break;
+
+ /* Along with IP names, ltr_show map includes CURRENT_PLATFORM
+ * and AGGREGATED_SYSTEM values per PMC. Take these two index
+ * values into account in ltr_index calculation. Also, to start
+ * ltr index from zero for next pmc, subtract it by 1.
+ */
+ ltr_index = ltr_index - (map->ltr_ignore_max + 2) - 1;
}
+ if (pmc_index >= ARRAY_SIZE(pmcdev->pmcs) || ltr_index < 0)
+ return -EINVAL;
+
+ pr_debug("ltr_ignore for pmc%d: ltr_index:%d\n", pmc_index, ltr_index);
+
+ mutex_lock(&pmcdev->lock);
+
reg = pmc_core_reg_read(pmc, map->ltr_ignore_offset);
- reg |= BIT(value);
+ reg |= BIT(ltr_index);
pmc_core_reg_write(pmc, map->ltr_ignore_offset, reg);
-out_unlock:
mutex_unlock(&pmcdev->lock);
- return err;
+ return 0;
}
static ssize_t pmc_core_ltr_ignore_write(struct file *file,
@@ -586,36 +616,44 @@ static u32 convert_ltr_scale(u32 val)
static int pmc_core_ltr_show(struct seq_file *s, void *unused)
{
- struct pmc *pmc = s->private;
- const struct pmc_bit_map *map = pmc->map->ltr_show_sts;
+ struct pmc_dev *pmcdev = s->private;
u64 decoded_snoop_ltr, decoded_non_snoop_ltr;
u32 ltr_raw_data, scale, val;
u16 snoop_ltr, nonsnoop_ltr;
- int index;
+ int i, index, ltr_index = 0;
- for (index = 0; map[index].name ; index++) {
- decoded_snoop_ltr = decoded_non_snoop_ltr = 0;
- ltr_raw_data = pmc_core_reg_read(pmc,
- map[index].bit_mask);
- snoop_ltr = ltr_raw_data & ~MTPMC_MASK;
- nonsnoop_ltr = (ltr_raw_data >> 0x10) & ~MTPMC_MASK;
-
- if (FIELD_GET(LTR_REQ_NONSNOOP, ltr_raw_data)) {
- scale = FIELD_GET(LTR_DECODED_SCALE, nonsnoop_ltr);
- val = FIELD_GET(LTR_DECODED_VAL, nonsnoop_ltr);
- decoded_non_snoop_ltr = val * convert_ltr_scale(scale);
- }
+ for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+ struct pmc *pmc = pmcdev->pmcs[i];
+ const struct pmc_bit_map *map;
- if (FIELD_GET(LTR_REQ_SNOOP, ltr_raw_data)) {
- scale = FIELD_GET(LTR_DECODED_SCALE, snoop_ltr);
- val = FIELD_GET(LTR_DECODED_VAL, snoop_ltr);
- decoded_snoop_ltr = val * convert_ltr_scale(scale);
- }
+ if (!pmc)
+ continue;
+
+ map = pmc->map->ltr_show_sts;
+ for (index = 0; map[index].name; index++) {
+ decoded_snoop_ltr = decoded_non_snoop_ltr = 0;
+ ltr_raw_data = pmc_core_reg_read(pmc,
+ map[index].bit_mask);
+ snoop_ltr = ltr_raw_data & ~MTPMC_MASK;
+ nonsnoop_ltr = (ltr_raw_data >> 0x10) & ~MTPMC_MASK;
+
+ if (FIELD_GET(LTR_REQ_NONSNOOP, ltr_raw_data)) {
+ scale = FIELD_GET(LTR_DECODED_SCALE, nonsnoop_ltr);
+ val = FIELD_GET(LTR_DECODED_VAL, nonsnoop_ltr);
+ decoded_non_snoop_ltr = val * convert_ltr_scale(scale);
+ }
+ if (FIELD_GET(LTR_REQ_SNOOP, ltr_raw_data)) {
+ scale = FIELD_GET(LTR_DECODED_SCALE, snoop_ltr);
+ val = FIELD_GET(LTR_DECODED_VAL, snoop_ltr);
+ decoded_snoop_ltr = val * convert_ltr_scale(scale);
+ }
- seq_printf(s, "%-32s\tLTR: RAW: 0x%-16x\tNon-Snoop(ns): %-16llu\tSnoop(ns): %-16llu\n",
- map[index].name, ltr_raw_data,
- decoded_non_snoop_ltr,
- decoded_snoop_ltr);
+ seq_printf(s, "%d\tPMC%d:%-32s\tLTR: RAW: 0x%-16x\tNon-Snoop(ns): %-16llu\tSnoop(ns): %-16llu\n",
+ ltr_index, i, map[index].name, ltr_raw_data,
+ decoded_non_snoop_ltr,
+ decoded_snoop_ltr);
+ ltr_index++;
+ }
}
return 0;
}
@@ -651,11 +689,19 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_res);
static int pmc_core_substate_sts_regs_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
- const struct pmc_bit_map **maps = pmc->map->lpm_sts;
- u32 offset = pmc->map->lpm_status_offset;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+ struct pmc *pmc = pmcdev->pmcs[i];
+ const struct pmc_bit_map **maps;
+ u32 offset;
- pmc_core_lpm_display(pmc, NULL, s, offset, "STATUS", maps);
+ if (!pmc)
+ continue;
+ maps = pmc->map->lpm_sts;
+ offset = pmc->map->lpm_status_offset;
+ pmc_core_lpm_display(pmc, NULL, s, offset, i, "STATUS", maps);
+ }
return 0;
}
@@ -664,11 +710,19 @@ DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_sts_regs);
static int pmc_core_substate_l_sts_regs_show(struct seq_file *s, void *unused)
{
struct pmc_dev *pmcdev = s->private;
- struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
- const struct pmc_bit_map **maps = pmc->map->lpm_sts;
- u32 offset = pmc->map->lpm_live_status_offset;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+ struct pmc *pmc = pmcdev->pmcs[i];
+ const struct pmc_bit_map **maps;
+ u32 offset;
- pmc_core_lpm_display(pmc, NULL, s, offset, "LIVE_STATUS", maps);
+ if (!pmc)
+ continue;
+ maps = pmc->map->lpm_sts;
+ offset = pmc->map->lpm_live_status_offset;
+ pmc_core_lpm_display(pmc, NULL, s, offset, i, "LIVE_STATUS", maps);
+ }
return 0;
}
@@ -1005,7 +1059,7 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
debugfs_create_file("ltr_ignore", 0644, dir, pmcdev,
&pmc_core_ltr_ignore_ops);
- debugfs_create_file("ltr_show", 0444, dir, primary_pmc, &pmc_core_ltr_fops);
+ debugfs_create_file("ltr_show", 0444, dir, pmcdev, &pmc_core_ltr_fops);
debugfs_create_file("package_cstate_show", 0444, dir, primary_pmc,
&pmc_core_pkgc_fops);
@@ -1264,6 +1318,7 @@ int pmc_core_resume_common(struct pmc_dev *pmcdev)
struct pmc *pmc = pmcdev->pmcs[PMC_IDX_MAIN];
const struct pmc_bit_map **maps = pmc->map->lpm_sts;
int offset = pmc->map->lpm_status_offset;
+ int i;
/* Check if the syspend used S0ix */
if (pm_suspend_via_firmware())
@@ -1285,10 +1340,18 @@ int pmc_core_resume_common(struct pmc_dev *pmcdev)
/* The real interesting case - S0ix failed - lets ask PMC why. */
dev_warn(dev, "CPU did not enter SLP_S0!!! (S0ix cnt=%llu)\n",
pmcdev->s0ix_counter);
+
if (pmc->map->slps0_dbg_maps)
pmc_core_slps0_display(pmc, dev, NULL);
- if (pmc->map->lpm_sts)
- pmc_core_lpm_display(pmc, dev, NULL, offset, "STATUS", maps);
+
+ for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+ struct pmc *pmc = pmcdev->pmcs[i];
+
+ if (!pmc)
+ continue;
+ if (pmc->map->lpm_sts)
+ pmc_core_lpm_display(pmc, dev, NULL, offset, i, "STATUS", maps);
+ }
return 0;
}
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 5/8] platform/x86:intel/pmc: Discover PMC devices
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
` (3 preceding siblings ...)
2023-06-13 22:53 ` [PATCH 4/8] platform/x86:intel/pmc: Enable debugfs multiple PMC support Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-13 22:53 ` [PATCH 6/8] platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMC Rajvi Jingar
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee, Rajvi Jingar
From: "David E. Box" <david.e.box@linux.intel.com>
On platforms with multiple PMCs, additional PMC devices are discovered
in the SSRAM device associated with the primary PMC. Add support for
discovering PMC devices from SSRAM. Use PMC devid to assign the
corresponding register map.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/Makefile | 4 +-
drivers/platform/x86/intel/pmc/core.c | 34 +++--
drivers/platform/x86/intel/pmc/core.h | 16 +++
drivers/platform/x86/intel/pmc/core_ssram.c | 133 ++++++++++++++++++++
drivers/platform/x86/intel/pmc/mtl.c | 7 ++
5 files changed, 180 insertions(+), 14 deletions(-)
create mode 100644 drivers/platform/x86/intel/pmc/core_ssram.c
diff --git a/drivers/platform/x86/intel/pmc/Makefile b/drivers/platform/x86/intel/pmc/Makefile
index f96bc2e19503..3a4cf1cbc1ca 100644
--- a/drivers/platform/x86/intel/pmc/Makefile
+++ b/drivers/platform/x86/intel/pmc/Makefile
@@ -3,8 +3,8 @@
# Intel x86 Platform-Specific Drivers
#
-intel_pmc_core-y := core.o spt.o cnp.o icl.o tgl.o \
- adl.o mtl.o
+intel_pmc_core-y := core.o core_ssram.o spt.o cnp.o \
+ icl.o tgl.o adl.o mtl.o
obj-$(CONFIG_INTEL_PMC_CORE) += intel_pmc_core.o
intel_pmc_core_pltdrv-y := pltdrv.o
obj-$(CONFIG_INTEL_PMC_CORE) += intel_pmc_core_pltdrv.o
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 5864d2e85706..5a36b3f77bc5 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -1183,6 +1183,26 @@ static void pmc_core_do_dmi_quirks(struct pmc *pmc)
pmc_core_xtal_ignore(pmc);
}
+static void pmc_core_clean_structure(struct platform_device *pdev)
+{
+ struct pmc_dev *pmcdev = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
+ struct pmc *pmc = pmcdev->pmcs[i];
+
+ if (pmc)
+ iounmap(pmc->regbase);
+ }
+
+ if (pmcdev->ssram_pcidev) {
+ pci_dev_put(pmcdev->ssram_pcidev);
+ pci_disable_device(pmcdev->ssram_pcidev);
+ }
+ platform_set_drvdata(pdev, NULL);
+ mutex_destroy(&pmcdev->lock);
+}
+
static int pmc_core_probe(struct platform_device *pdev)
{
static bool device_initialized;
@@ -1225,7 +1245,7 @@ static int pmc_core_probe(struct platform_device *pdev)
mutex_init(&pmcdev->lock);
ret = core_init(pmcdev);
if (ret) {
- mutex_destroy(&pmcdev->lock);
+ pmc_core_clean_structure(pdev);
return ret;
}
@@ -1246,18 +1266,8 @@ static int pmc_core_probe(struct platform_device *pdev)
static void pmc_core_remove(struct platform_device *pdev)
{
struct pmc_dev *pmcdev = platform_get_drvdata(pdev);
- int i;
-
- for (i = 0; i < ARRAY_SIZE(pmcdev->pmcs); ++i) {
- struct pmc *pmc = pmcdev->pmcs[i];
-
- if (pmc)
- iounmap(pmc->regbase);
- }
-
pmc_core_dbgfs_unregister(pmcdev);
- platform_set_drvdata(pdev, NULL);
- mutex_destroy(&pmcdev->lock);
+ pmc_core_clean_structure(pdev);
}
static bool warn_on_s0ix_failures;
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 4f21d452a033..06c444917a16 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -319,6 +319,17 @@ struct pmc_reg_map {
const u32 etr3_offset;
};
+/**
+ * struct pmc_info - Structure to keep pmc info
+ * @devid: device id of the pmc device
+ * @map: pointer to a pmc_reg_map struct that contains platform
+ * specific attributes
+ */
+struct pmc_info {
+ u16 devid;
+ const struct pmc_reg_map *map;
+};
+
/**
* struct pmc - pmc private info structure
* @base_addr: contains pmc base address
@@ -340,6 +351,7 @@ struct pmc {
* struct pmc_dev - pmc device structure
* @devs: pointer to an array of pmc pointers
* @pdev: pointer to platform_device struct
+ * @ssram_pcidev: pointer to pci device struct for the PMC SSRAM
* @dbgfs_dir: path to debugfs interface
* @pmc_xram_read_bit: flag to indicate whether PMC XRAM shadow registers
* used to read MPHY PG and PLL status are available
@@ -356,6 +368,7 @@ struct pmc_dev {
struct pmc *pmcs[MAX_NUM_PMC];
struct dentry *dbgfs_dir;
struct platform_device *pdev;
+ struct pci_dev *ssram_pcidev;
int pmc_xram_read_bit;
struct mutex lock; /* generic mutex lock for PMC Core */
@@ -368,6 +381,7 @@ struct pmc_dev {
bool has_die_c6;
u32 die_c6_offset;
struct telem_endpoint *punit_ep;
+ struct pmc_info *regmap_list;
};
enum pmc_index {
@@ -450,6 +464,8 @@ extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value);
int pmc_core_resume_common(struct pmc_dev *pmcdev);
int get_primary_reg_base(struct pmc *pmc);
+extern void pmc_core_ssram_init(struct pmc_dev *pmcdev);
+
int spt_core_init(struct pmc_dev *pmcdev);
int cnp_core_init(struct pmc_dev *pmcdev);
int icl_core_init(struct pmc_dev *pmcdev);
diff --git a/drivers/platform/x86/intel/pmc/core_ssram.c b/drivers/platform/x86/intel/pmc/core_ssram.c
new file mode 100644
index 000000000000..13fa16f0d52e
--- /dev/null
+++ b/drivers/platform/x86/intel/pmc/core_ssram.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This file contains functions to handle discovery of PMC metrics located
+ * in the PMC SSRAM PCI device.
+ *
+ * Copyright (c) 2023, Intel Corporation.
+ * All Rights Reserved.
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
+
+#include "core.h"
+
+#define SSRAM_HDR_SIZE 0x100
+#define SSRAM_PWRM_OFFSET 0x14
+#define SSRAM_DVSEC_OFFSET 0x1C
+#define SSRAM_DVSEC_SIZE 0x10
+#define SSRAM_PCH_OFFSET 0x60
+#define SSRAM_IOE_OFFSET 0x68
+#define SSRAM_DEVID_OFFSET 0x70
+
+static const struct pmc_reg_map *pmc_core_find_regmap(struct pmc_info *list, u16 devid)
+{
+ for (; list->map; ++list)
+ if (devid == list->devid)
+ return list->map;
+
+ return NULL;
+}
+
+static inline u64 get_base(void __iomem *addr, u32 offset)
+{
+ return lo_hi_readq(addr + offset) & GENMASK_ULL(63, 3);
+}
+
+static void
+pmc_core_pmc_add(struct pmc_dev *pmcdev, u64 pwrm_base,
+ const struct pmc_reg_map *reg_map, int pmc_index)
+{
+ struct pmc *pmc = pmcdev->pmcs[pmc_index];
+
+ if (!pwrm_base)
+ return;
+
+ /* Memory for primary PMC has been allocated in core.c */
+ if (!pmc) {
+ pmc = devm_kzalloc(&pmcdev->pdev->dev, sizeof(*pmc), GFP_KERNEL);
+ if (!pmc)
+ return;
+ }
+
+ pmc->map = reg_map;
+ pmc->base_addr = pwrm_base;
+ pmc->regbase = ioremap(pmc->base_addr, pmc->map->regmap_length);
+
+ if (!pmc->regbase) {
+ devm_kfree(&pmcdev->pdev->dev, pmc);
+ return;
+ }
+
+ pmcdev->pmcs[pmc_index] = pmc;
+}
+
+static void
+pmc_core_ssram_get_pmc(struct pmc_dev *pmcdev, void __iomem *ssram, u32 offset,
+ int pmc_idx)
+{
+ u64 pwrm_base;
+ u16 devid;
+
+ if (pmc_idx != PMC_IDX_SOC) {
+ u64 ssram_base = get_base(ssram, offset);
+
+ if (!ssram_base)
+ return;
+
+ ssram = ioremap(ssram_base, SSRAM_HDR_SIZE);
+ if (!ssram)
+ return;
+ }
+
+ pwrm_base = get_base(ssram, SSRAM_PWRM_OFFSET);
+ devid = readw(ssram + SSRAM_DEVID_OFFSET);
+
+ if (pmcdev->regmap_list) {
+ const struct pmc_reg_map *map;
+
+ map = pmc_core_find_regmap(pmcdev->regmap_list, devid);
+ if (map)
+ pmc_core_pmc_add(pmcdev, pwrm_base, map, pmc_idx);
+ }
+
+ if (pmc_idx != PMC_IDX_SOC)
+ iounmap(ssram);
+}
+
+void pmc_core_ssram_init(struct pmc_dev *pmcdev)
+{
+ void __iomem *ssram;
+ struct pci_dev *pcidev;
+ u64 ssram_base;
+ int ret;
+
+ pcidev = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(20, 2));
+ if (!pcidev)
+ goto out;
+
+ ret = pcim_enable_device(pcidev);
+ if (ret)
+ goto release_dev;
+
+ ssram_base = pcidev->resource[0].start;
+ ssram = ioremap(ssram_base, SSRAM_HDR_SIZE);
+ if (!ssram)
+ goto disable_dev;
+
+ pmcdev->ssram_pcidev = pcidev;
+
+ pmc_core_ssram_get_pmc(pmcdev, ssram, 0, PMC_IDX_SOC);
+ pmc_core_ssram_get_pmc(pmcdev, ssram, SSRAM_IOE_OFFSET, PMC_IDX_IOE);
+ pmc_core_ssram_get_pmc(pmcdev, ssram, SSRAM_PCH_OFFSET, PMC_IDX_PCH);
+
+ iounmap(ssram);
+out:
+ return;
+
+disable_dev:
+ pci_disable_device(pcidev);
+release_dev:
+ pci_dev_put(pcidev);
+}
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index 69df6d7fee56..e53dc7900dbf 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -467,6 +467,10 @@ const struct pmc_reg_map mtl_socm_reg_map = {
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
};
+static struct pmc_info mtl_pmc_info_list[] = {
+ {}
+};
+
#define MTL_GNA_PCI_DEV 0x7e4c
#define MTL_IPU_PCI_DEV 0x7d19
#define MTL_VPU_PCI_DEV 0x7d1d
@@ -517,6 +521,9 @@ int mtl_core_init(struct pmc_dev *pmcdev)
pmcdev->resume = mtl_resume;
+ pmcdev->regmap_list = mtl_pmc_info_list;
+ pmc_core_ssram_init(pmcdev);
+
ret = get_primary_reg_base(pmc);
if (ret)
return ret;
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 6/8] platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMC
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
` (4 preceding siblings ...)
2023-06-13 22:53 ` [PATCH 5/8] platform/x86:intel/pmc: Discover PMC devices Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-13 22:53 ` [PATCH 7/8] platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related maps Rajvi Jingar
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee
From: Xi Pardee <xi.pardee@intel.com>
On older platforms, the base address for PMC was hardcoded in the
driver. Newer platforms can now retrieve the base address from SSRAM.
Use SSRAM to discover pwrm base address on Meteor Lake platform. If
this method fails, it will fall back to the hardcoded value.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/mtl.c | 19 +++++++++++++------
1 file changed, 13 insertions(+), 6 deletions(-)
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index e53dc7900dbf..b5552bb146c9 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -467,7 +467,12 @@ const struct pmc_reg_map mtl_socm_reg_map = {
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
};
+#define PMC_DEVID_SOCM 0x7e7f
static struct pmc_info mtl_pmc_info_list[] = {
+ {
+ .devid = PMC_DEVID_SOCM,
+ .map = &mtl_socm_reg_map,
+ },
{}
};
@@ -513,9 +518,7 @@ static int mtl_resume(struct pmc_dev *pmcdev)
int mtl_core_init(struct pmc_dev *pmcdev)
{
struct pmc *pmc = pmcdev->pmcs[PMC_IDX_SOC];
- int ret;
-
- pmc->map = &mtl_socm_reg_map;
+ int ret = 0;
mtl_d3_fixup();
@@ -524,9 +527,13 @@ int mtl_core_init(struct pmc_dev *pmcdev)
pmcdev->regmap_list = mtl_pmc_info_list;
pmc_core_ssram_init(pmcdev);
- ret = get_primary_reg_base(pmc);
- if (ret)
- return ret;
+ /* If regbase not assigned, set map and discover using legacy method */
+ if (!pmc->regbase) {
+ pmc->map = &mtl_socm_reg_map;
+ ret = get_primary_reg_base(pmc);
+ if (ret)
+ return ret;
+ }
/* Due to a hardware limitation, the GBE LTR blocks PC10
* when a cable is attached. Tell the PMC to ignore it.
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 7/8] platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related maps
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
` (5 preceding siblings ...)
2023-06-13 22:53 ` [PATCH 6/8] platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMC Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-13 22:53 ` [PATCH 8/8] platform/x86:intel/pmc: Add Meteor Lake IOE-M " Rajvi Jingar
2023-06-20 10:56 ` [PATCH 0/8] Add multiple PMCs support in pmc core driver Hans de Goede
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee, Rajvi Jingar
From: Xi Pardee <xi.pardee@intel.com>
Add device ID and register maps for the PMC in IO expansion die P in
Meteor Lake.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/core.h | 21 ++
drivers/platform/x86/intel/pmc/mtl.c | 322 ++++++++++++++++++++++++++
2 files changed, 343 insertions(+)
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 06c444917a16..0c899efaa206 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -252,12 +252,15 @@ enum ppfear_regs {
#define MTL_LPM_LIVE_STATUS_OFFSET 0x175C
#define MTL_PMC_LTR_IOE_PMC 0x1C0C
#define MTL_PMC_LTR_ESE 0x1BAC
+#define MTL_PMC_LTR_RESERVED 0x1BA4
+#define MTL_IOE_PMC_MMIO_REG_LEN 0x23A4
#define MTL_SOCM_NUM_IP_IGN_ALLOWED 25
#define MTL_SOC_PMC_MMIO_REG_LEN 0x2708
#define MTL_PMC_LTR_SPG 0x1B74
/* Meteor Lake PGD PFET Enable Ack Status */
#define MTL_SOCM_PPFEAR_NUM_ENTRIES 8
+#define MTL_IOE_PPFEAR_NUM_ENTRIES 10
extern const char *pmc_lpm_modes[];
@@ -457,6 +460,24 @@ extern const struct pmc_bit_map mtl_socm_vnn_misc_status_map[];
extern const struct pmc_bit_map mtl_socm_signal_status_map[];
extern const struct pmc_bit_map *mtl_socm_lpm_maps[];
extern const struct pmc_reg_map mtl_socm_reg_map;
+extern const struct pmc_bit_map mtl_ioep_pfear_map[];
+extern const struct pmc_bit_map *ext_mtl_ioep_pfear_map[];
+extern const struct pmc_bit_map mtl_ioep_ltr_show_map[];
+extern const struct pmc_bit_map mtl_ioep_clocksource_status_map[];
+extern const struct pmc_bit_map mtl_ioep_power_gating_status_0_map[];
+extern const struct pmc_bit_map mtl_ioep_power_gating_status_1_map[];
+extern const struct pmc_bit_map mtl_ioep_power_gating_status_2_map[];
+extern const struct pmc_bit_map mtl_ioep_d3_status_0_map[];
+extern const struct pmc_bit_map mtl_ioep_d3_status_1_map[];
+extern const struct pmc_bit_map mtl_ioep_d3_status_2_map[];
+extern const struct pmc_bit_map mtl_ioep_d3_status_3_map[];
+extern const struct pmc_bit_map mtl_ioep_vnn_req_status_0_map[];
+extern const struct pmc_bit_map mtl_ioep_vnn_req_status_1_map[];
+extern const struct pmc_bit_map mtl_ioep_vnn_req_status_2_map[];
+extern const struct pmc_bit_map mtl_ioep_vnn_req_status_3_map[];
+extern const struct pmc_bit_map mtl_ioep_vnn_misc_status_map[];
+extern const struct pmc_bit_map *mtl_ioep_lpm_maps[];
+extern const struct pmc_reg_map mtl_ioep_reg_map;
extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev);
extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value);
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index b5552bb146c9..da3dba8c653b 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -467,12 +467,334 @@ const struct pmc_reg_map mtl_socm_reg_map = {
.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
};
+const struct pmc_bit_map mtl_ioep_pfear_map[] = {
+ {"PMC_0", BIT(0)},
+ {"OPI", BIT(1)},
+ {"TCSS", BIT(2)},
+ {"RSVD3", BIT(3)},
+ {"SPA", BIT(4)},
+ {"SPB", BIT(5)},
+ {"SPC", BIT(6)},
+ {"IOE_D2D_3", BIT(7)},
+
+ {"RSVD8", BIT(0)},
+ {"RSVD9", BIT(1)},
+ {"SPE", BIT(2)},
+ {"RSVD11", BIT(3)},
+ {"RSVD12", BIT(4)},
+ {"SPD", BIT(5)},
+ {"ACE_7", BIT(6)},
+ {"RSVD15", BIT(7)},
+
+ {"ACE_0", BIT(0)},
+ {"FIACPCB_P", BIT(1)},
+ {"P2S", BIT(2)},
+ {"RSVD19", BIT(3)},
+ {"ACE_8", BIT(4)},
+ {"IOE_D2D_0", BIT(5)},
+ {"FUSE", BIT(6)},
+ {"RSVD23", BIT(7)},
+
+ {"FIACPCB_P5", BIT(0)},
+ {"ACE_3", BIT(1)},
+ {"RSF5", BIT(2)},
+ {"ACE_2", BIT(3)},
+ {"ACE_4", BIT(4)},
+ {"RSVD29", BIT(5)},
+ {"RSF10", BIT(6)},
+ {"MPFPW5", BIT(7)},
+
+ {"PSF9", BIT(0)},
+ {"MPFPW4", BIT(1)},
+ {"RSVD34", BIT(2)},
+ {"RSVD35", BIT(3)},
+ {"RSVD36", BIT(4)},
+ {"RSVD37", BIT(5)},
+ {"RSVD38", BIT(6)},
+ {"RSVD39", BIT(7)},
+
+ {"SBR0", BIT(0)},
+ {"SBR1", BIT(1)},
+ {"SBR2", BIT(2)},
+ {"SBR3", BIT(3)},
+ {"SBR4", BIT(4)},
+ {"SBR5", BIT(5)},
+ {"RSVD46", BIT(6)},
+ {"RSVD47", BIT(7)},
+
+ {"RSVD48", BIT(0)},
+ {"FIA_P5", BIT(1)},
+ {"RSVD50", BIT(2)},
+ {"RSVD51", BIT(3)},
+ {"RSVD52", BIT(4)},
+ {"RSVD53", BIT(5)},
+ {"RSVD54", BIT(6)},
+ {"ACE_1", BIT(7)},
+
+ {"RSVD56", BIT(0)},
+ {"ACE_5", BIT(1)},
+ {"RSVD58", BIT(2)},
+ {"G5FPW1", BIT(3)},
+ {"RSVD60", BIT(4)},
+ {"ACE_6", BIT(5)},
+ {"RSVD62", BIT(6)},
+ {"GBETSN1", BIT(7)},
+
+ {"RSVD64", BIT(0)},
+ {"FIA", BIT(1)},
+ {"RSVD66", BIT(2)},
+ {"FIA_P", BIT(3)},
+ {"TAM", BIT(4)},
+ {"GBETSN", BIT(5)},
+ {"IOE_D2D_2", BIT(6)},
+ {"IOE_D2D_1", BIT(7)},
+
+ {"SPF", BIT(0)},
+ {"PMC_1", BIT(1)},
+ {}
+};
+
+const struct pmc_bit_map *ext_mtl_ioep_pfear_map[] = {
+ mtl_ioep_pfear_map,
+ NULL
+};
+
+const struct pmc_bit_map mtl_ioep_ltr_show_map[] = {
+ {"SOUTHPORT_A", CNP_PMC_LTR_SPA},
+ {"SOUTHPORT_B", CNP_PMC_LTR_SPB},
+ {"SATA", CNP_PMC_LTR_SATA},
+ {"GIGABIT_ETHERNET", CNP_PMC_LTR_GBE},
+ {"XHCI", CNP_PMC_LTR_XHCI},
+ {"SOUTHPORT_F", ADL_PMC_LTR_SPF},
+ {"ME", CNP_PMC_LTR_ME},
+ {"SATA1", CNP_PMC_LTR_EVA},
+ {"SOUTHPORT_C", CNP_PMC_LTR_SPC},
+ {"HD_AUDIO", CNP_PMC_LTR_AZ},
+ {"CNV", CNP_PMC_LTR_CNV},
+ {"LPSS", CNP_PMC_LTR_LPSS},
+ {"SOUTHPORT_D", CNP_PMC_LTR_SPD},
+ {"SOUTHPORT_E", CNP_PMC_LTR_SPE},
+ {"SATA2", CNP_PMC_LTR_CAM},
+ {"ESPI", CNP_PMC_LTR_ESPI},
+ {"SCC", CNP_PMC_LTR_SCC},
+ {"Reserved", MTL_PMC_LTR_RESERVED},
+ {"UFSX2", CNP_PMC_LTR_UFSX2},
+ {"EMMC", CNP_PMC_LTR_EMMC},
+ {"WIGIG", ICL_PMC_LTR_WIGIG},
+ {"THC0", TGL_PMC_LTR_THC0},
+ {"THC1", TGL_PMC_LTR_THC1},
+ {"SOUTHPORT_G", MTL_PMC_LTR_SPG},
+
+ /* Below two cannot be used for LTR_IGNORE */
+ {"CURRENT_PLATFORM", CNP_PMC_LTR_CUR_PLT},
+ {"AGGREGATED_SYSTEM", CNP_PMC_LTR_CUR_ASLT},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_clocksource_status_map[] = {
+ {"AON2_OFF_STS", BIT(0)},
+ {"AON3_OFF_STS", BIT(1)},
+ {"AON4_OFF_STS", BIT(2)},
+ {"AON5_OFF_STS", BIT(3)},
+ {"AON1_OFF_STS", BIT(4)},
+ {"TBT_PLL_OFF_STS", BIT(5)},
+ {"TMU_PLL_OFF_STS", BIT(6)},
+ {"BCLK_PLL_OFF_STS", BIT(7)},
+ {"D2D_PLL_OFF_STS", BIT(8)},
+ {"AON3_SPL_OFF_STS", BIT(9)},
+ {"MPFPW4_0_PLL_OFF_STS", BIT(12)},
+ {"MPFPW5_0_PLL_OFF_STS", BIT(13)},
+ {"G5FPW_0_PLL_OFF_STS", BIT(14)},
+ {"G5FPW_1_PLL_OFF_STS", BIT(15)},
+ {"XTAL_AGGR_OFF_STS", BIT(17)},
+ {"FABRIC_PLL_OFF_STS", BIT(25)},
+ {"SOC_PLL_OFF_STS", BIT(26)},
+ {"REF_PLL_OFF_STS", BIT(28)},
+ {"RTC_PLL_OFF_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_power_gating_status_0_map[] = {
+ {"PMC_PGD0_PG_STS", BIT(0)},
+ {"DMI_PGD0_PG_STS", BIT(1)},
+ {"TCSS_PGD0_PG_STS", BIT(2)},
+ {"SPA_PGD0_PG_STS", BIT(4)},
+ {"SPB_PGD0_PG_STS", BIT(5)},
+ {"SPC_PGD0_PG_STS", BIT(6)},
+ {"IOE_D2D_PGD3_PG_STS", BIT(7)},
+ {"SPE_PGD0_PG_STS", BIT(10)},
+ {"SPD_PGD0_PG_STS", BIT(13)},
+ {"ACE_PGD7_PG_STS", BIT(14)},
+ {"ACE_PGD0_PG_STS", BIT(16)},
+ {"FIACPCB_P_PGD0_PG_STS", BIT(17)},
+ {"P2S_PGD0_PG_STS", BIT(18)},
+ {"ACE_PGD8_PG_STS", BIT(20)},
+ {"IOE_D2D_PGD0_PG_STS", BIT(21)},
+ {"FUSE_PGD0_PG_STS", BIT(22)},
+ {"FIACPCB_P5_PGD0_PG_STS", BIT(24)},
+ {"ACE_PGD3_PG_STS", BIT(25)},
+ {"PSF5_PGD0_PG_STS", BIT(26)},
+ {"ACE_PGD2_PG_STS", BIT(27)},
+ {"ACE_PGD4_PG_STS", BIT(28)},
+ {"PSF10_PGD0_PG_STS", BIT(30)},
+ {"MPFPW5_PGD0_PG_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_power_gating_status_1_map[] = {
+ {"PSF9_PGD0_PG_STS", BIT(0)},
+ {"MPFPW4_PGD0_PG_STS", BIT(1)},
+ {"SBR0_PGD0_PG_STS", BIT(8)},
+ {"SBR1_PGD0_PG_STS", BIT(9)},
+ {"SBR2_PGD0_PG_STS", BIT(10)},
+ {"SBR3_PGD0_PG_STS", BIT(11)},
+ {"SBR4_PGD0_PG_STS", BIT(12)},
+ {"SBR5_PGD0_PG_STS", BIT(13)},
+ {"FIA_P5_PGD0_PG_STS", BIT(17)},
+ {"ACE_PGD1_PGD0_PG_STS", BIT(23)},
+ {"ACE_PGD5_PGD1_PG_STS", BIT(25)},
+ {"G5FPW1_PGD0_PG_STS", BIT(27)},
+ {"ACE_PGD6_PG_STS", BIT(29)},
+ {"GBETSN1_PGD0_PG_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_power_gating_status_2_map[] = {
+ {"FIA_PGD0_PG_STS", BIT(1)},
+ {"FIA_P_PGD0_PG_STS", BIT(3)},
+ {"TAM_PGD0_PG_STS", BIT(4)},
+ {"GBETSN_PGD0_PG_STS", BIT(5)},
+ {"IOE_D2D_PGD2_PG_STS", BIT(6)},
+ {"IOE_D2D_PGD1_PG_STS", BIT(7)},
+ {"SPF_PGD0_PG_STS", BIT(8)},
+ {"PMC_PGD1_PG_STS", BIT(9)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_d3_status_0_map[] = {
+ {"SPF_D3_STS", BIT(0)},
+ {"SPA_D3_STS", BIT(12)},
+ {"SPB_D3_STS", BIT(13)},
+ {"SPC_D3_STS", BIT(14)},
+ {"SPD_D3_STS", BIT(15)},
+ {"SPE_D3_STS", BIT(16)},
+ {"DMI_D3_STS", BIT(22)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_d3_status_1_map[] = {
+ {"GBETSN1_D3_STS", BIT(14)},
+ {"P2S_D3_STS", BIT(24)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_d3_status_2_map[] = {
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_d3_status_3_map[] = {
+ {"GBETSN_D3_STS", BIT(13)},
+ {"ACE_D3_STS", BIT(23)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_vnn_req_status_0_map[] = {
+ {"FIA_VNN_REQ_STS", BIT(17)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_vnn_req_status_1_map[] = {
+ {"DFXAGG_VNN_REQ_STS", BIT(8)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_vnn_req_status_2_map[] = {
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_vnn_req_status_3_map[] = {
+ {"DTS0_VNN_REQ_STS", BIT(7)},
+ {"DISP_VNN_REQ_STS", BIT(19)},
+ {}
+};
+
+const struct pmc_bit_map mtl_ioep_vnn_misc_status_map[] = {
+ {"CPU_C10_REQ_STS", BIT(0)},
+ {"TS_OFF_REQ_STS", BIT(1)},
+ {"PNDE_MET_REQ_STS", BIT(2)},
+ {"PCIE_DEEP_PM_REQ_STS", BIT(3)},
+ {"PMC_CLK_THROTTLE_EN_REQ_STS", BIT(4)},
+ {"NPK_VNNAON_REQ_STS", BIT(5)},
+ {"VNN_SOC_REQ_STS", BIT(6)},
+ {"USB_DEVICE_ATTACHED_REQ_STS", BIT(8)},
+ {"FIA_EXIT_REQ_STS", BIT(9)},
+ {"USB2_SUS_PG_REQ_STS", BIT(10)},
+ {"PLT_GREATER_REQ_STS", BIT(11)},
+ {"PCIE_CLKREQ_REQ_STS", BIT(12)},
+ {"PMC_IDLE_FB_OCP_REQ_STS", BIT(13)},
+ {"PM_SYNC_STATES_REQ_STS", BIT(14)},
+ {"EA_REQ_STS", BIT(15)},
+ {"MPHY_CORE_OFF_REQ_STS", BIT(16)},
+ {"BRK_EV_EN_REQ_STS", BIT(17)},
+ {"AUTO_DEMO_EN_REQ_STS", BIT(18)},
+ {"ITSS_CLK_SRC_REQ_STS", BIT(19)},
+ {"LPC_CLK_SRC_REQ_STS", BIT(20)},
+ {"ARC_IDLE_REQ_STS", BIT(21)},
+ {"MPHY_SUS_REQ_STS", BIT(22)},
+ {"FIA_DEEP_PM_REQ_STS", BIT(23)},
+ {"UXD_CONNECTED_REQ_STS", BIT(24)},
+ {"ARC_INTERRUPT_WAKE_REQ_STS", BIT(25)},
+ {"USB2_VNNAON_ACT_REQ_STS", BIT(26)},
+ {"PRE_WAKE0_REQ_STS", BIT(27)},
+ {"PRE_WAKE1_REQ_STS", BIT(28)},
+ {"PRE_WAKE2_EN_REQ_STS", BIT(29)},
+ {"WOV_REQ_STS", BIT(30)},
+ {"CNVI_V1P05_REQ_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map *mtl_ioep_lpm_maps[] = {
+ mtl_ioep_clocksource_status_map,
+ mtl_ioep_power_gating_status_0_map,
+ mtl_ioep_power_gating_status_1_map,
+ mtl_ioep_power_gating_status_2_map,
+ mtl_ioep_d3_status_0_map,
+ mtl_ioep_d3_status_1_map,
+ mtl_ioep_d3_status_2_map,
+ mtl_ioep_d3_status_3_map,
+ mtl_ioep_vnn_req_status_0_map,
+ mtl_ioep_vnn_req_status_1_map,
+ mtl_ioep_vnn_req_status_2_map,
+ mtl_ioep_vnn_req_status_3_map,
+ mtl_ioep_vnn_misc_status_map,
+ mtl_socm_signal_status_map,
+ NULL
+};
+
+const struct pmc_reg_map mtl_ioep_reg_map = {
+ .regmap_length = MTL_IOE_PMC_MMIO_REG_LEN,
+ .pfear_sts = ext_mtl_ioep_pfear_map,
+ .ppfear0_offset = CNP_PMC_HOST_PPFEAR0A,
+ .ppfear_buckets = MTL_IOE_PPFEAR_NUM_ENTRIES,
+ .lpm_status_offset = MTL_LPM_STATUS_OFFSET,
+ .lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
+ .lpm_sts = mtl_ioep_lpm_maps,
+ .ltr_show_sts = mtl_ioep_ltr_show_map,
+ .ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
+ .ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
+};
+
#define PMC_DEVID_SOCM 0x7e7f
+#define PMC_DEVID_IOEP 0x7ecf
static struct pmc_info mtl_pmc_info_list[] = {
{
.devid = PMC_DEVID_SOCM,
.map = &mtl_socm_reg_map,
},
+ {
+ .devid = PMC_DEVID_IOEP,
+ .map = &mtl_ioep_reg_map,
+ },
{}
};
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH 8/8] platform/x86:intel/pmc: Add Meteor Lake IOE-M PMC related maps
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
` (6 preceding siblings ...)
2023-06-13 22:53 ` [PATCH 7/8] platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related maps Rajvi Jingar
@ 2023-06-13 22:53 ` Rajvi Jingar
2023-06-20 10:56 ` [PATCH 0/8] Add multiple PMCs support in pmc core driver Hans de Goede
8 siblings, 0 replies; 10+ messages in thread
From: Rajvi Jingar @ 2023-06-13 22:53 UTC (permalink / raw)
To: david.e.box, ilpo.jarvinen, irenic.rajneesh, linux-kernel,
platform-driver-x86, hdegoede
Cc: xi.pardee, Rajvi Jingar
From: Xi Pardee <xi.pardee@intel.com>
Add device ID and register maps for the PMC in IO expansion die M in
Meteor Lake.
Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
drivers/platform/x86/intel/pmc/core.h | 6 ++
drivers/platform/x86/intel/pmc/mtl.c | 145 ++++++++++++++++++++++++++
2 files changed, 151 insertions(+)
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 0c899efaa206..0729f593c6a7 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -478,6 +478,12 @@ extern const struct pmc_bit_map mtl_ioep_vnn_req_status_3_map[];
extern const struct pmc_bit_map mtl_ioep_vnn_misc_status_map[];
extern const struct pmc_bit_map *mtl_ioep_lpm_maps[];
extern const struct pmc_reg_map mtl_ioep_reg_map;
+extern const struct pmc_bit_map mtl_ioem_pfear_map[];
+extern const struct pmc_bit_map *ext_mtl_ioem_pfear_map[];
+extern const struct pmc_bit_map mtl_ioem_power_gating_status_1_map[];
+extern const struct pmc_bit_map mtl_ioem_vnn_req_status_1_map[];
+extern const struct pmc_bit_map *mtl_ioem_lpm_maps[];
+extern const struct pmc_reg_map mtl_ioem_reg_map;
extern void pmc_core_get_tgl_lpm_reqs(struct platform_device *pdev);
extern int pmc_core_send_ltr_ignore(struct pmc_dev *pmcdev, u32 value);
diff --git a/drivers/platform/x86/intel/pmc/mtl.c b/drivers/platform/x86/intel/pmc/mtl.c
index da3dba8c653b..2204bc666980 100644
--- a/drivers/platform/x86/intel/pmc/mtl.c
+++ b/drivers/platform/x86/intel/pmc/mtl.c
@@ -784,8 +784,149 @@ const struct pmc_reg_map mtl_ioep_reg_map = {
.ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
};
+const struct pmc_bit_map mtl_ioem_pfear_map[] = {
+ {"PMC_0", BIT(0)},
+ {"OPI", BIT(1)},
+ {"TCSS", BIT(2)},
+ {"RSVD3", BIT(3)},
+ {"SPA", BIT(4)},
+ {"SPB", BIT(5)},
+ {"SPC", BIT(6)},
+ {"IOE_D2D_3", BIT(7)},
+
+ {"RSVD8", BIT(0)},
+ {"RSVD9", BIT(1)},
+ {"SPE", BIT(2)},
+ {"RSVD11", BIT(3)},
+ {"RSVD12", BIT(4)},
+ {"SPD", BIT(5)},
+ {"ACE_7", BIT(6)},
+ {"RSVD15", BIT(7)},
+
+ {"ACE_0", BIT(0)},
+ {"FIACPCB_P", BIT(1)},
+ {"P2S", BIT(2)},
+ {"RSVD19", BIT(3)},
+ {"ACE_8", BIT(4)},
+ {"IOE_D2D_0", BIT(5)},
+ {"FUSE", BIT(6)},
+ {"RSVD23", BIT(7)},
+
+ {"FIACPCB_P5", BIT(0)},
+ {"ACE_3", BIT(1)},
+ {"RSF5", BIT(2)},
+ {"ACE_2", BIT(3)},
+ {"ACE_4", BIT(4)},
+ {"RSVD29", BIT(5)},
+ {"RSF10", BIT(6)},
+ {"MPFPW5", BIT(7)},
+
+ {"PSF9", BIT(0)},
+ {"MPFPW4", BIT(1)},
+ {"RSVD34", BIT(2)},
+ {"RSVD35", BIT(3)},
+ {"RSVD36", BIT(4)},
+ {"RSVD37", BIT(5)},
+ {"RSVD38", BIT(6)},
+ {"RSVD39", BIT(7)},
+
+ {"SBR0", BIT(0)},
+ {"SBR1", BIT(1)},
+ {"SBR2", BIT(2)},
+ {"SBR3", BIT(3)},
+ {"SBR4", BIT(4)},
+ {"RSVD45", BIT(5)},
+ {"RSVD46", BIT(6)},
+ {"RSVD47", BIT(7)},
+
+ {"RSVD48", BIT(0)},
+ {"FIA_P5", BIT(1)},
+ {"RSVD50", BIT(2)},
+ {"RSVD51", BIT(3)},
+ {"RSVD52", BIT(4)},
+ {"RSVD53", BIT(5)},
+ {"RSVD54", BIT(6)},
+ {"ACE_1", BIT(7)},
+
+ {"RSVD56", BIT(0)},
+ {"ACE_5", BIT(1)},
+ {"RSVD58", BIT(2)},
+ {"G5FPW1", BIT(3)},
+ {"RSVD60", BIT(4)},
+ {"ACE_6", BIT(5)},
+ {"RSVD62", BIT(6)},
+ {"GBETSN1", BIT(7)},
+
+ {"RSVD64", BIT(0)},
+ {"FIA", BIT(1)},
+ {"RSVD66", BIT(2)},
+ {"FIA_P", BIT(3)},
+ {"TAM", BIT(4)},
+ {"GBETSN", BIT(5)},
+ {"IOE_D2D_2", BIT(6)},
+ {"IOE_D2D_1", BIT(7)},
+
+ {"SPF", BIT(0)},
+ {"PMC_1", BIT(1)},
+ {}
+};
+
+const struct pmc_bit_map *ext_mtl_ioem_pfear_map[] = {
+ mtl_ioem_pfear_map,
+ NULL
+};
+
+const struct pmc_bit_map mtl_ioem_power_gating_status_1_map[] = {
+ {"PSF9_PGD0_PG_STS", BIT(0)},
+ {"MPFPW4_PGD0_PG_STS", BIT(1)},
+ {"SBR0_PGD0_PG_STS", BIT(8)},
+ {"SBR1_PGD0_PG_STS", BIT(9)},
+ {"SBR2_PGD0_PG_STS", BIT(10)},
+ {"SBR3_PGD0_PG_STS", BIT(11)},
+ {"SBR4_PGD0_PG_STS", BIT(12)},
+ {"FIA_P5_PGD0_PG_STS", BIT(17)},
+ {"ACE_PGD1_PGD0_PG_STS", BIT(23)},
+ {"ACE_PGD5_PGD1_PG_STS", BIT(25)},
+ {"G5FPW1_PGD0_PG_STS", BIT(27)},
+ {"ACE_PGD6_PG_STS", BIT(29)},
+ {"GBETSN1_PGD0_PG_STS", BIT(31)},
+ {}
+};
+
+const struct pmc_bit_map *mtl_ioem_lpm_maps[] = {
+ mtl_ioep_clocksource_status_map,
+ mtl_ioep_power_gating_status_0_map,
+ mtl_ioem_power_gating_status_1_map,
+ mtl_ioep_power_gating_status_2_map,
+ mtl_ioep_d3_status_0_map,
+ mtl_ioep_d3_status_1_map,
+ mtl_ioep_d3_status_2_map,
+ mtl_ioep_d3_status_3_map,
+ mtl_ioep_vnn_req_status_0_map,
+ mtl_ioep_vnn_req_status_1_map,
+ mtl_ioep_vnn_req_status_2_map,
+ mtl_ioep_vnn_req_status_3_map,
+ mtl_ioep_vnn_misc_status_map,
+ mtl_socm_signal_status_map,
+ NULL
+};
+
+const struct pmc_reg_map mtl_ioem_reg_map = {
+ .regmap_length = MTL_IOE_PMC_MMIO_REG_LEN,
+ .pfear_sts = ext_mtl_ioem_pfear_map,
+ .ppfear0_offset = CNP_PMC_HOST_PPFEAR0A,
+ .ppfear_buckets = MTL_IOE_PPFEAR_NUM_ENTRIES,
+ .lpm_status_offset = MTL_LPM_STATUS_OFFSET,
+ .lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
+ .lpm_sts = mtl_ioem_lpm_maps,
+ .ltr_show_sts = mtl_ioep_ltr_show_map,
+ .ltr_ignore_offset = CNP_PMC_LTR_IGNORE_OFFSET,
+ .ltr_ignore_max = ADL_NUM_IP_IGN_ALLOWED,
+};
+
#define PMC_DEVID_SOCM 0x7e7f
#define PMC_DEVID_IOEP 0x7ecf
+#define PMC_DEVID_IOEM 0x7ebf
static struct pmc_info mtl_pmc_info_list[] = {
{
.devid = PMC_DEVID_SOCM,
@@ -795,6 +936,10 @@ static struct pmc_info mtl_pmc_info_list[] = {
.devid = PMC_DEVID_IOEP,
.map = &mtl_ioep_reg_map,
},
+ {
+ .devid = PMC_DEVID_IOEM,
+ .map = &mtl_ioem_reg_map
+ },
{}
};
--
2.25.1
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH 0/8] Add multiple PMCs support in pmc core driver
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
` (7 preceding siblings ...)
2023-06-13 22:53 ` [PATCH 8/8] platform/x86:intel/pmc: Add Meteor Lake IOE-M " Rajvi Jingar
@ 2023-06-20 10:56 ` Hans de Goede
8 siblings, 0 replies; 10+ messages in thread
From: Hans de Goede @ 2023-06-20 10:56 UTC (permalink / raw)
To: Rajvi Jingar, david.e.box, ilpo.jarvinen, irenic.rajneesh,
linux-kernel, platform-driver-x86
Cc: xi.pardee
Hi,
On 6/14/23 00:53, Rajvi Jingar wrote:
> Newer platforms starting from Meteor Lake can have multiple PMCs.
> This patch series include changes to enable pmc core driver to support
> multiple PMCs for newer platforms. It adds devid and register maps to
> enable IOE-P and IOE-M available on Meteor Lake platform. It also fixes
> the register maps for SOC-M.
>
> Patch includes:
> platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms
> platform/x86:intel/pmc: Combine core_init() and core_configure()
> platform/x86:intel/pmc: Add support to handle multiple PMCs
> platform/x86:intel/pmc: Enable debugfs multiple PMC support
> platform/x86:intel/pmc: Discover PMC devices
> platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMC
> platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related maps
> platform/x86:intel/pmc: Add Meteor Lake IOE-M PMC related maps
Thank you for your patch-series, I've applied the series to my
review-hans branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans
Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.
Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.
Regards,
Hans
>
> drivers/platform/x86/intel/pmc/Makefile | 4 +-
> drivers/platform/x86/intel/pmc/adl.c | 16 +-
> drivers/platform/x86/intel/pmc/cnp.c | 18 +-
> drivers/platform/x86/intel/pmc/core.c | 470 ++++++----
> drivers/platform/x86/intel/pmc/core.h | 125 ++-
> drivers/platform/x86/intel/pmc/core_ssram.c | 133 +++
> drivers/platform/x86/intel/pmc/icl.c | 7 +-
> drivers/platform/x86/intel/pmc/mtl.c | 954 +++++++++++++++++++-
> drivers/platform/x86/intel/pmc/spt.c | 7 +-
> drivers/platform/x86/intel/pmc/tgl.c | 21 +-
> 10 files changed, 1516 insertions(+), 239 deletions(-)
> create mode 100644 drivers/platform/x86/intel/pmc/core_ssram.c
>
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2023-06-20 10:57 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-06-13 22:53 [PATCH 0/8] Add multiple PMCs support in pmc core driver Rajvi Jingar
2023-06-13 22:53 ` [PATCH 1/8] platform/x86:intel/pmc: Update maps for Meteor Lake P/M platforms Rajvi Jingar
2023-06-13 22:53 ` [PATCH 2/8] platform/x86:intel/pmc: Combine core_init() and core_configure() Rajvi Jingar
2023-06-13 22:53 ` [PATCH 3/8] platform/x86:intel/pmc: Add support to handle multiple PMCs Rajvi Jingar
2023-06-13 22:53 ` [PATCH 4/8] platform/x86:intel/pmc: Enable debugfs multiple PMC support Rajvi Jingar
2023-06-13 22:53 ` [PATCH 5/8] platform/x86:intel/pmc: Discover PMC devices Rajvi Jingar
2023-06-13 22:53 ` [PATCH 6/8] platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMC Rajvi Jingar
2023-06-13 22:53 ` [PATCH 7/8] platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related maps Rajvi Jingar
2023-06-13 22:53 ` [PATCH 8/8] platform/x86:intel/pmc: Add Meteor Lake IOE-M " Rajvi Jingar
2023-06-20 10:56 ` [PATCH 0/8] Add multiple PMCs support in pmc core driver Hans de Goede
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).