// SPDX-License-Identifier: MIT
/*
* Copyright © 2021 Intel Corporation
*/
#include "xe_pci.h"
#include <kunit/static_stub.h>
#include <linux/device/driver.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <drm/drm_color_mgmt.h>
#include <drm/drm_drv.h>
#include <drm/intel/pciids.h>
#include "display/xe_display.h"
#include "regs/xe_gt_regs.h"
#include "xe_device.h"
#include "xe_drv.h"
#include "xe_gt.h"
#include "xe_gt_sriov_vf.h"
#include "xe_guc.h"
#include "xe_macros.h"
#include "xe_mmio.h"
#include "xe_module.h"
#include "xe_pci_sriov.h"
#include "xe_pci_types.h"
#include "xe_pm.h"
#include "xe_sriov.h"
#include "xe_step.h"
#include "xe_survivability_mode.h"
#include "xe_tile.h"
enum toggle_d3cold {
D3COLD_DISABLE,
D3COLD_ENABLE,
};
__diag_push();
__diag_ignore_all("-Woverride-init" , "Allow field overrides in table" );
#define PLATFORM(x) \
.platform = XE_## x, \
.platform_name = #x
#define NOP(x) x
static const struct xe_graphics_desc graphics_xelp = {
.hw_engine_mask = BIT(XE_HW_ENGINE_RCS0) | BIT(XE_HW_ENGINE_BCS0),
.va_bits = 48 ,
.vm_max_level = 3 ,
};
#define XE_HP_FEATURES \
.has_range_tlb_invalidation = true , \
.va_bits = 48 , \
.vm_max_level = 3
static const struct xe_graphics_desc graphics_xehpg = {
.hw_engine_mask =
BIT(XE_HW_ENGINE_RCS0) | BIT(XE_HW_ENGINE_BCS0) |
BIT(XE_HW_ENGINE_CCS0) | BIT(XE_HW_ENGINE_CCS1) |
BIT(XE_HW_ENGINE_CCS2) | BIT(XE_HW_ENGINE_CCS3),
XE_HP_FEATURES,
.vram_flags = XE_VRAM_FLAGS_NEED64K,
.has_flat_ccs = 1 ,
};
static const struct xe_graphics_desc graphics_xehpc = {
.hw_engine_mask =
BIT(XE_HW_ENGINE_BCS0) | BIT(XE_HW_ENGINE_BCS1) |
BIT(XE_HW_ENGINE_BCS2) | BIT(XE_HW_ENGINE_BCS3) |
BIT(XE_HW_ENGINE_BCS4) | BIT(XE_HW_ENGINE_BCS5) |
BIT(XE_HW_ENGINE_BCS6) | BIT(XE_HW_ENGINE_BCS7) |
BIT(XE_HW_ENGINE_BCS8) |
BIT(XE_HW_ENGINE_CCS0) | BIT(XE_HW_ENGINE_CCS1) |
BIT(XE_HW_ENGINE_CCS2) | BIT(XE_HW_ENGINE_CCS3),
XE_HP_FEATURES,
.va_bits = 57 ,
.vm_max_level = 4 ,
.vram_flags = XE_VRAM_FLAGS_NEED64K,
.has_asid = 1 ,
.has_atomic_enable_pte_bit = 1 ,
.has_usm = 1 ,
};
static const struct xe_graphics_desc graphics_xelpg = {
.hw_engine_mask =
BIT(XE_HW_ENGINE_RCS0) | BIT(XE_HW_ENGINE_BCS0) |
BIT(XE_HW_ENGINE_CCS0),
XE_HP_FEATURES,
};
#define XE2_GFX_FEATURES \
.has_asid = 1 , \
.has_atomic_enable_pte_bit = 1 , \
.has_flat_ccs = 1 , \
.has_range_tlb_invalidation = 1 , \
.has_usm = 1 , \
.has_64bit_timestamp = 1 , \
.va_bits = 48 , \
.vm_max_level = 4 , \
.hw_engine_mask = \
BIT(XE_HW_ENGINE_RCS0) | \
BIT(XE_HW_ENGINE_BCS8) | BIT(XE_HW_ENGINE_BCS0) | \
GENMASK(XE_HW_ENGINE_CCS3, XE_HW_ENGINE_CCS0)
static const struct xe_graphics_desc graphics_xe2 = {
XE2_GFX_FEATURES,
};
static const struct xe_media_desc media_xem = {
.hw_engine_mask =
GENMASK(XE_HW_ENGINE_VCS7, XE_HW_ENGINE_VCS0) |
GENMASK(XE_HW_ENGINE_VECS3, XE_HW_ENGINE_VECS0),
};
static const struct xe_media_desc media_xelpmp = {
.hw_engine_mask =
GENMASK(XE_HW_ENGINE_VCS7, XE_HW_ENGINE_VCS0) |
GENMASK(XE_HW_ENGINE_VECS3, XE_HW_ENGINE_VECS0) |
BIT(XE_HW_ENGINE_GSCCS0)
};
/* Pre-GMDID Graphics IPs */
static const struct xe_ip graphics_ip_xelp = { 1200 , "Xe_LP" , &graphics_xelp };
static const struct xe_ip graphics_ip_xelpp = { 1210 , "Xe_LP+" , &graphics_xelp };
static const struct xe_ip graphics_ip_xehpg = { 1255 , "Xe_HPG" , &graphics_xehpg };
static const struct xe_ip graphics_ip_xehpc = { 1260 , "Xe_HPC" , &graphics_xehpc };
/* GMDID-based Graphics IPs */
static const struct xe_ip graphics_ips[] = {
{ 1270 , "Xe_LPG" , &graphics_xelpg },
{ 1271 , "Xe_LPG" , &graphics_xelpg },
{ 1274 , "Xe_LPG+" , &graphics_xelpg },
{ 2001 , "Xe2_HPG" , &graphics_xe2 },
{ 2002 , "Xe2_HPG" , &graphics_xe2 },
{ 2004 , "Xe2_LPG" , &graphics_xe2 },
{ 3000 , "Xe3_LPG" , &graphics_xe2 },
{ 3001 , "Xe3_LPG" , &graphics_xe2 },
{ 3003 , "Xe3_LPG" , &graphics_xe2 },
};
/* Pre-GMDID Media IPs */
static const struct xe_ip media_ip_xem = { 1200 , "Xe_M" , &media_xem };
static const struct xe_ip media_ip_xehpm = { 1255 , "Xe_HPM" , &media_xem };
/* GMDID-based Media IPs */
static const struct xe_ip media_ips[] = {
{ 1300 , "Xe_LPM+" , &media_xelpmp },
{ 1301 , "Xe2_HPM" , &media_xelpmp },
{ 2000 , "Xe2_LPM" , &media_xelpmp },
{ 3000 , "Xe3_LPM" , &media_xelpmp },
{ 3002 , "Xe3_LPM" , &media_xelpmp },
};
static const struct xe_device_desc tgl_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xelp,
.pre_gmdid_media_ip = &media_ip_xem,
PLATFORM(TIGERLAKE),
.dma_mask_size = 39 ,
.has_display = true ,
.has_llc = true ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
};
static const struct xe_device_desc rkl_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xelp,
.pre_gmdid_media_ip = &media_ip_xem,
PLATFORM(ROCKETLAKE),
.dma_mask_size = 39 ,
.has_display = true ,
.has_llc = true ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
};
static const u16 adls_rpls_ids[] = { INTEL_RPLS_IDS(NOP), 0 };
static const struct xe_device_desc adl_s_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xelp,
.pre_gmdid_media_ip = &media_ip_xem,
PLATFORM(ALDERLAKE_S),
.dma_mask_size = 39 ,
.has_display = true ,
.has_llc = true ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
.subplatforms = (const struct xe_subplatform_desc[]) {
{ XE_SUBPLATFORM_ALDERLAKE_S_RPLS, "RPLS" , adls_rpls_ids },
{},
},
};
static const u16 adlp_rplu_ids[] = { INTEL_RPLU_IDS(NOP), 0 };
static const struct xe_device_desc adl_p_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xelp,
.pre_gmdid_media_ip = &media_ip_xem,
PLATFORM(ALDERLAKE_P),
.dma_mask_size = 39 ,
.has_display = true ,
.has_llc = true ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
.subplatforms = (const struct xe_subplatform_desc[]) {
{ XE_SUBPLATFORM_ALDERLAKE_P_RPLU, "RPLU" , adlp_rplu_ids },
{},
},
};
static const struct xe_device_desc adl_n_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xelp,
.pre_gmdid_media_ip = &media_ip_xem,
PLATFORM(ALDERLAKE_N),
.dma_mask_size = 39 ,
.has_display = true ,
.has_llc = true ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
};
#define DGFX_FEATURES \
.is_dgfx = 1
static const struct xe_device_desc dg1_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xelpp,
.pre_gmdid_media_ip = &media_ip_xem,
DGFX_FEATURES,
PLATFORM(DG1),
.dma_mask_size = 39 ,
.has_display = true ,
.has_gsc_nvm = 1 ,
.has_heci_gscfi = 1 ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
};
static const u16 dg2_g10_ids[] = { INTEL_DG2_G10_IDS(NOP), INTEL_ATS_M150_IDS(NOP), 0 };
static const u16 dg2_g11_ids[] = { INTEL_DG2_G11_IDS(NOP), INTEL_ATS_M75_IDS(NOP), 0 };
static const u16 dg2_g12_ids[] = { INTEL_DG2_G12_IDS(NOP), 0 };
#define DG2_FEATURES \
DGFX_FEATURES, \
PLATFORM(DG2), \
.has_gsc_nvm = 1 , \
.has_heci_gscfi = 1 , \
.subplatforms = (const struct xe_subplatform_desc[]) { \
{ XE_SUBPLATFORM_DG2_G10, "G10" , dg2_g10_ids }, \
{ XE_SUBPLATFORM_DG2_G11, "G11" , dg2_g11_ids }, \
{ XE_SUBPLATFORM_DG2_G12, "G12" , dg2_g12_ids }, \
{ } \
}
static const struct xe_device_desc ats_m_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xehpg,
.pre_gmdid_media_ip = &media_ip_xehpm,
.dma_mask_size = 46 ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
DG2_FEATURES,
.has_display = false ,
};
static const struct xe_device_desc dg2_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xehpg,
.pre_gmdid_media_ip = &media_ip_xehpm,
.dma_mask_size = 46 ,
.max_gt_per_tile = 1 ,
.require_force_probe = true ,
DG2_FEATURES,
.has_display = true ,
.has_fan_control = true ,
.has_mbx_power_limits = false ,
};
static const __maybe_unused struct xe_device_desc pvc_desc = {
.pre_gmdid_graphics_ip = &graphics_ip_xehpc,
DGFX_FEATURES,
PLATFORM(PVC),
.dma_mask_size = 52 ,
.has_display = false ,
.has_gsc_nvm = 1 ,
.has_heci_gscfi = 1 ,
.max_gt_per_tile = 1 ,
.max_remote_tiles = 1 ,
.require_force_probe = true ,
.has_mbx_power_limits = false ,
};
static const struct xe_device_desc mtl_desc = {
/* .graphics and .media determined via GMD_ID */
.require_force_probe = true ,
PLATFORM(METEORLAKE),
.dma_mask_size = 46 ,
.has_display = true ,
.has_pxp = true ,
.max_gt_per_tile = 2 ,
};
static const struct xe_device_desc lnl_desc = {
PLATFORM(LUNARLAKE),
.dma_mask_size = 46 ,
.has_display = true ,
.has_pxp = true ,
.max_gt_per_tile = 2 ,
.needs_scratch = true ,
};
static const struct xe_device_desc bmg_desc = {
DGFX_FEATURES,
PLATFORM(BATTLEMAGE),
.dma_mask_size = 46 ,
.has_display = true ,
.has_fan_control = true ,
.has_mbx_power_limits = true ,
.has_gsc_nvm = 1 ,
.has_heci_cscfi = 1 ,
.has_sriov = true ,
.max_gt_per_tile = 2 ,
.needs_scratch = true ,
};
static const struct xe_device_desc ptl_desc = {
PLATFORM(PANTHERLAKE),
.dma_mask_size = 46 ,
.has_display = true ,
.has_sriov = true ,
.max_gt_per_tile = 2 ,
.needs_scratch = true ,
};
#undef PLATFORM
__diag_pop();
/*
* Make sure any device matches here are from most specific to most
* general . For example , since the Quanta match is based on the subsystem
* and subvendor IDs , we need it to come before the more general IVB
* PCI ID matches , otherwise we ' ll use the wrong info struct above .
*/
static const struct pci_device_id pciidlist[] = {
INTEL_TGL_IDS(INTEL_VGA_DEVICE, &tgl_desc),
INTEL_RKL_IDS(INTEL_VGA_DEVICE, &rkl_desc),
INTEL_ADLS_IDS(INTEL_VGA_DEVICE, &adl_s_desc),
INTEL_ADLP_IDS(INTEL_VGA_DEVICE, &adl_p_desc),
INTEL_ADLN_IDS(INTEL_VGA_DEVICE, &adl_n_desc),
INTEL_RPLU_IDS(INTEL_VGA_DEVICE, &adl_p_desc),
INTEL_RPLP_IDS(INTEL_VGA_DEVICE, &adl_p_desc),
INTEL_RPLS_IDS(INTEL_VGA_DEVICE, &adl_s_desc),
INTEL_DG1_IDS(INTEL_VGA_DEVICE, &dg1_desc),
INTEL_ATS_M_IDS(INTEL_VGA_DEVICE, &ats_m_desc),
INTEL_ARL_IDS(INTEL_VGA_DEVICE, &mtl_desc),
INTEL_DG2_IDS(INTEL_VGA_DEVICE, &dg2_desc),
INTEL_MTL_IDS(INTEL_VGA_DEVICE, &mtl_desc),
INTEL_LNL_IDS(INTEL_VGA_DEVICE, &lnl_desc),
INTEL_BMG_IDS(INTEL_VGA_DEVICE, &bmg_desc),
INTEL_PTL_IDS(INTEL_VGA_DEVICE, &ptl_desc),
{ }
};
MODULE_DEVICE_TABLE(pci, pciidlist);
/* is device_id present in comma separated list of ids */
static bool device_id_in_list(u16 device_id, const char *devices, bool negative)
{
char *s, *p, *tok;
bool ret;
if (!devices || !*devices)
return false ;
/* match everything */
if (negative && strcmp(devices, "!*" ) == 0 )
return true ;
if (!negative && strcmp(devices, "*" ) == 0 )
return true ;
s = kstrdup(devices, GFP_KERNEL);
if (!s)
return false ;
for (p = s, ret = false ; (tok = strsep(&p, "," )) != NULL; ) {
u16 val;
if (negative && tok[0 ] == '!' )
tok++;
else if ((negative && tok[0 ] != '!' ) ||
(!negative && tok[0 ] == '!' ))
continue ;
if (kstrtou16(tok, 16 , &val) == 0 && val == device_id) {
ret = true ;
break ;
}
}
kfree(s);
return ret;
}
static bool id_forced(u16 device_id)
{
return device_id_in_list(device_id, xe_modparam.force_probe, false );
}
static bool id_blocked(u16 device_id)
{
return device_id_in_list(device_id, xe_modparam.force_probe, true );
}
static const struct xe_subplatform_desc *
find_subplatform(const struct xe_device *xe, const struct xe_device_desc *desc)
{
const struct xe_subplatform_desc *sp;
const u16 *id;
for (sp = desc->subplatforms; sp && sp->subplatform; sp++)
for (id = sp->pciidlist; *id; id++)
if (*id == xe->info.devid)
return sp;
return NULL;
}
enum xe_gmdid_type {
GMDID_GRAPHICS,
GMDID_MEDIA
};
static void read_gmdid(struct xe_device *xe, enum xe_gmdid_type type, u32 *ver, u32 *revid)
{
struct xe_mmio *mmio = xe_root_tile_mmio(xe);
struct xe_reg gmdid_reg = GMD_ID;
u32 val;
KUNIT_STATIC_STUB_REDIRECT(read_gmdid, xe, type, ver, revid);
if (IS_SRIOV_VF(xe)) {
struct xe_gt *gt = xe_root_mmio_gt(xe);
/*
* To get the value of the GMDID register , VFs must obtain it
* from the GuC using MMIO communication .
*
* Note that at this point the xe_gt is not fully uninitialized
* and only basic access to MMIO registers is possible . To use
* our existing GuC communication functions we must perform at
* least basic xe_gt and xe_guc initialization .
*
* Since to obtain the value of GMDID_MEDIA we need to use the
* media GuC , temporarily tweak the gt type .
*/
xe_gt_assert(gt, gt->info.type == XE_GT_TYPE_UNINITIALIZED);
if (type == GMDID_MEDIA) {
gt->info.id = 1 ;
gt->info.type = XE_GT_TYPE_MEDIA;
} else {
gt->info.id = 0 ;
gt->info.type = XE_GT_TYPE_MAIN;
}
xe_gt_mmio_init(gt);
xe_guc_comm_init_early(>->uc.guc);
/* Don't bother with GMDID if failed to negotiate the GuC ABI */
val = xe_gt_sriov_vf_bootstrap(gt) ? 0 : xe_gt_sriov_vf_gmdid(gt);
/*
* Only undo xe_gt . info here , the remaining changes made above
* will be overwritten as part of the regular initialization .
*/
gt->info.id = 0 ;
gt->info.type = XE_GT_TYPE_UNINITIALIZED;
} else {
/*
* GMD_ID is a GT register , but at this point in the driver
* init we haven ' t fully initialized the GT yet so we need to
* read the register with the tile ' s MMIO accessor . That means
* we need to apply the GSI offset manually since it won ' t get
* automatically added as it would if we were using a GT mmio
* accessor .
*/
if (type == GMDID_MEDIA)
gmdid_reg.addr += MEDIA_GT_GSI_OFFSET;
val = xe_mmio_read32(mmio, gmdid_reg);
}
*ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, val) * 100 + REG_FIELD_GET(GMD_ID_RELEASE_MASK, val);
*revid = REG_FIELD_GET(GMD_ID_REVID, val);
}
/*
* Read IP version from hardware and select graphics / media IP descriptors
* based on the result .
*/
static void handle_gmdid(struct xe_device *xe,
const struct xe_ip **graphics_ip,
const struct xe_ip **media_ip,
u32 *graphics_revid,
u32 *media_revid)
{
u32 ver;
*graphics_ip = NULL;
*media_ip = NULL;
read_gmdid(xe, GMDID_GRAPHICS, &ver, graphics_revid);
for (int i = 0 ; i < ARRAY_SIZE(graphics_ips); i++) {
if (ver == graphics_ips[i].verx100) {
*graphics_ip = &graphics_ips[i];
break ;
}
}
if (!*graphics_ip) {
drm_err(&xe->drm, "Hardware reports unknown graphics version %u.%02u\n" ,
ver / 100 , ver % 100 );
}
read_gmdid(xe, GMDID_MEDIA, &ver, media_revid);
/* Media may legitimately be fused off / not present */
if (ver == 0 )
return ;
for (int i = 0 ; i < ARRAY_SIZE(media_ips); i++) {
if (ver == media_ips[i].verx100) {
*media_ip = &media_ips[i];
break ;
}
}
if (!*media_ip) {
drm_err(&xe->drm, "Hardware reports unknown media version %u.%02u\n" ,
ver / 100 , ver % 100 );
}
}
/*
* Initialize device info content that only depends on static driver_data
* passed to the driver at probe time from PCI ID table .
*/
static int xe_info_init_early(struct xe_device *xe,
const struct xe_device_desc *desc,
const struct xe_subplatform_desc *subplatform_desc)
{
int err;
xe->info.platform_name = desc->platform_name;
xe->info.platform = desc->platform;
xe->info.subplatform = subplatform_desc ?
subplatform_desc->subplatform : XE_SUBPLATFORM_NONE;
xe->info.dma_mask_size = desc->dma_mask_size;
xe->info.is_dgfx = desc->is_dgfx;
xe->info.has_fan_control = desc->has_fan_control;
xe->info.has_mbx_power_limits = desc->has_mbx_power_limits;
xe->info.has_gsc_nvm = desc->has_gsc_nvm;
xe->info.has_heci_gscfi = desc->has_heci_gscfi;
xe->info.has_heci_cscfi = desc->has_heci_cscfi;
xe->info.has_llc = desc->has_llc;
xe->info.has_pxp = desc->has_pxp;
xe->info.has_sriov = desc->has_sriov;
xe->info.skip_guc_pc = desc->skip_guc_pc;
xe->info.skip_mtcfg = desc->skip_mtcfg;
xe->info.skip_pcode = desc->skip_pcode;
xe->info.needs_scratch = desc->needs_scratch;
xe->info.probe_display = IS_ENABLED(CONFIG_DRM_XE_DISPLAY) &&
xe_modparam.probe_display &&
desc->has_display;
xe_assert(xe, desc->max_gt_per_tile > 0 );
xe_assert(xe, desc->max_gt_per_tile <= XE_MAX_GT_PER_TILE);
xe->info.max_gt_per_tile = desc->max_gt_per_tile;
xe->info.tile_count = 1 + desc->max_remote_tiles;
err = xe_tile_init_early(xe_device_get_root_tile(xe), xe, 0 );
if (err)
return err;
return 0 ;
}
/*
* Initialize device info content that does require knowledge about
* graphics / media IP version .
* Make sure that GT / tile structures allocated by the driver match the data
* present in device info .
*/
static int xe_info_init(struct xe_device *xe,
const struct xe_device_desc *desc)
{
u32 graphics_gmdid_revid = 0 , media_gmdid_revid = 0 ;
const struct xe_ip *graphics_ip;
const struct xe_ip *media_ip;
const struct xe_graphics_desc *graphics_desc;
const struct xe_media_desc *media_desc;
struct xe_tile *tile;
struct xe_gt *gt;
u8 id;
/*
* If this platform supports GMD_ID , we ' ll detect the proper IP
* descriptor to use from hardware registers .
* desc - > pre_gmdid_graphics_ip will only ever be set at this point for
* platforms before GMD_ID . In that case the IP descriptions and
* versions are simply derived from that .
*/
if (desc->pre_gmdid_graphics_ip) {
graphics_ip = desc->pre_gmdid_graphics_ip;
media_ip = desc->pre_gmdid_media_ip;
xe->info.step = xe_step_pre_gmdid_get(xe);
} else {
xe_assert(xe, !desc->pre_gmdid_media_ip);
handle_gmdid(xe, &graphics_ip, &media_ip,
&graphics_gmdid_revid, &media_gmdid_revid);
xe->info.step = xe_step_gmdid_get(xe,
graphics_gmdid_revid,
media_gmdid_revid);
}
/*
* If we couldn ' t detect the graphics IP , that ' s considered a fatal
* error and we should abort driver load . Failing to detect media
* IP is non - fatal ; we ' ll just proceed without enabling media support .
*/
if (!graphics_ip)
return -ENODEV;
xe->info.graphics_verx100 = graphics_ip->verx100;
xe->info.graphics_name = graphics_ip->name;
graphics_desc = graphics_ip->desc;
if (media_ip) {
xe->info.media_verx100 = media_ip->verx100;
xe->info.media_name = media_ip->name;
media_desc = media_ip->desc;
} else {
xe->info.media_name = "none" ;
media_desc = NULL;
}
xe->info.vram_flags = graphics_desc->vram_flags;
xe->info.va_bits = graphics_desc->va_bits;
xe->info.vm_max_level = graphics_desc->vm_max_level;
xe->info.has_asid = graphics_desc->has_asid;
xe->info.has_atomic_enable_pte_bit = graphics_desc->has_atomic_enable_pte_bit;
if (xe->info.platform != XE_PVC)
xe->info.has_device_atomics_on_smem = 1 ;
/* Runtime detection may change this later */
xe->info.has_flat_ccs = graphics_desc->has_flat_ccs;
xe->info.has_range_tlb_invalidation = graphics_desc->has_range_tlb_invalidation;
xe->info.has_usm = graphics_desc->has_usm;
xe->info.has_64bit_timestamp = graphics_desc->has_64bit_timestamp;
for_each_remote_tile(tile, xe, id) {
int err;
err = xe_tile_init_early(tile, xe, id);
if (err)
return err;
}
/*
* All platforms have at least one primary GT . Any platform with media
* version 13 or higher has an additional dedicated media GT . And
* depending on the graphics IP there may be additional " remote tiles . "
* All of these together determine the overall GT count .
*/
for_each_tile(tile, xe, id) {
int err;
gt = tile->primary_gt;
gt->info.type = XE_GT_TYPE_MAIN;
gt->info.id = tile->id * xe->info.max_gt_per_tile;
gt->info.has_indirect_ring_state = graphics_desc->has_indirect_ring_state;
gt->info.engine_mask = graphics_desc->hw_engine_mask;
xe->info.gt_count++;
err = xe_tile_alloc_vram(tile);
if (err)
return err;
if (MEDIA_VER(xe) < 13 && media_desc)
gt->info.engine_mask |= media_desc->hw_engine_mask;
if (MEDIA_VER(xe) < 13 || !media_desc)
continue ;
/*
* Allocate and setup media GT for platforms with standalone
* media .
*/
tile->media_gt = xe_gt_alloc(tile);
if (IS_ERR(tile->media_gt))
return PTR_ERR(tile->media_gt);
gt = tile->media_gt;
gt->info.type = XE_GT_TYPE_MEDIA;
gt->info.id = tile->id * xe->info.max_gt_per_tile + 1 ;
gt->info.has_indirect_ring_state = media_desc->has_indirect_ring_state;
gt->info.engine_mask = media_desc->hw_engine_mask;
xe->info.gt_count++;
}
return 0 ;
}
static void xe_pci_remove(struct pci_dev *pdev)
{
struct xe_device *xe = pdev_to_xe_device(pdev);
if (IS_SRIOV_PF(xe))
xe_pci_sriov_configure(pdev, 0 );
if (xe_survivability_mode_is_enabled(xe))
return ;
xe_device_remove(xe);
xe_pm_fini(xe);
}
/*
* Probe the PCI device , initialize various parts of the driver .
*
* Fault injection is used to test the error paths of some initialization
* functions called either directly from xe_pci_probe ( ) or indirectly for
* example through xe_device_probe ( ) . Those functions use the kernel fault
* injection capabilities infrastructure , see
* Documentation / fault - injection / fault - injection . rst for details . The macro
* ALLOW_ERROR_INJECTION ( ) is used to conditionally skip function execution
* at runtime and use a provided return value . The first requirement for
* error injectable functions is proper handling of the error code by the
* caller for recovery , which is always the case here . The second
* requirement is that no state is changed before the first error return .
* It is not strictly fulfilled for all initialization functions using the
* ALLOW_ERROR_INJECTION ( ) macro but this is acceptable because for those
* error cases at probe time , the error code is simply propagated up by the
* caller . Therefore there is no consequence on those specific callers when
* function error injection skips the whole function .
*/
static int xe_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
const struct xe_device_desc *desc = (const void *)ent->driver_data;
const struct xe_subplatform_desc *subplatform_desc;
struct xe_device *xe;
int err;
if (desc->require_force_probe && !id_forced(pdev->device)) {
dev_info(&pdev->dev,
"Your graphics device %04x is not officially supported\n"
"by xe driver in this kernel version. To force Xe probe,\n"
"use xe.force_probe='%04x' and i915.force_probe='!%04x'\n"
"module parameters or CONFIG_DRM_XE_FORCE_PROBE='%04x' and\n"
"CONFIG_DRM_I915_FORCE_PROBE='!%04x' configuration options.\n" ,
pdev->device, pdev->device, pdev->device,
pdev->device, pdev->device);
return -ENODEV;
}
if (id_blocked(pdev->device)) {
dev_info(&pdev->dev, "Probe blocked for device [%04x:%04x].\n" ,
pdev->vendor, pdev->device);
return -ENODEV;
}
if (xe_display_driver_probe_defer(pdev))
return -EPROBE_DEFER;
err = pcim_enable_device(pdev);
if (err)
return err;
xe = xe_device_create(pdev, ent);
if (IS_ERR(xe))
return PTR_ERR(xe);
pci_set_drvdata(pdev, &xe->drm);
xe_pm_assert_unbounded_bridge(xe);
subplatform_desc = find_subplatform(xe, desc);
pci_set_master(pdev);
err = xe_info_init_early(xe, desc, subplatform_desc);
if (err)
return err;
xe_vram_resize_bar(xe);
err = xe_device_probe_early(xe);
/*
* In Boot Survivability mode , no drm card is exposed and driver
* is loaded with bare minimum to allow for firmware to be
* flashed through mei . Return success , if survivability mode
* is enabled due to pcode failure or configfs being set
*/
if (xe_survivability_mode_is_enabled(xe))
return 0 ;
if (err)
return err;
err = xe_info_init(xe, desc);
if (err)
return err;
err = xe_display_probe(xe);
if (err)
return err;
drm_dbg(&xe->drm, "%s %s %04x:%04x dgfx:%d gfx:%s (%d.%02d) media:%s (%d.%02d) display:%s dma_m_s:%d tc:%d gscfi:%d cscfi:%d" ,
desc->platform_name,
subplatform_desc ? subplatform_desc->name : "" ,
xe->info.devid, xe->info.revid,
xe->info.is_dgfx,
xe->info.graphics_name,
xe->info.graphics_verx100 / 100 ,
xe->info.graphics_verx100 % 100 ,
xe->info.media_name,
xe->info.media_verx100 / 100 ,
xe->info.media_verx100 % 100 ,
str_yes_no(xe->info.probe_display),
xe->info.dma_mask_size, xe->info.tile_count,
xe->info.has_heci_gscfi, xe->info.has_heci_cscfi);
drm_dbg(&xe->drm, "Stepping = (G:%s, M:%s, B:%s)\n" ,
xe_step_name(xe->info.step.graphics),
xe_step_name(xe->info.step.media),
xe_step_name(xe->info.step.basedie));
drm_dbg(&xe->drm, "SR-IOV support: %s (mode: %s)\n" ,
str_yes_no(xe_device_has_sriov(xe)),
xe_sriov_mode_to_string(xe_device_sriov_mode(xe)));
err = xe_pm_init_early(xe);
if (err)
return err;
err = xe_device_probe(xe);
if (err)
return err;
err = xe_pm_init(xe);
if (err)
goto err_driver_cleanup;
drm_dbg(&xe->drm, "d3cold: capable=%s\n" ,
str_yes_no(xe->d3cold.capable));
return 0 ;
err_driver_cleanup:
xe_pci_remove(pdev);
return err;
}
static void xe_pci_shutdown(struct pci_dev *pdev)
{
xe_device_shutdown(pdev_to_xe_device(pdev));
}
#ifdef CONFIG_PM_SLEEP
static void d3cold_toggle(struct pci_dev *pdev, enum toggle_d3cold toggle)
{
struct xe_device *xe = pdev_to_xe_device(pdev);
struct pci_dev *root_pdev;
if (!xe->d3cold.capable)
return ;
root_pdev = pcie_find_root_port(pdev);
if (!root_pdev)
return ;
switch (toggle) {
case D3COLD_DISABLE:
pci_d3cold_disable(root_pdev);
break ;
case D3COLD_ENABLE:
pci_d3cold_enable(root_pdev);
break ;
}
}
static int xe_pci_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct xe_device *xe = pdev_to_xe_device(pdev);
int err;
if (xe_survivability_mode_is_enabled(xe))
return -EBUSY;
err = xe_pm_suspend(xe);
if (err)
return err;
/*
* Enabling D3Cold is needed for S2Idle / S0ix .
* It is save to allow here since xe_pm_suspend has evicted
* the local memory and the direct complete optimization is disabled .
*/
d3cold_toggle(pdev, D3COLD_ENABLE);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_set_power_state(pdev, PCI_D3cold);
return 0 ;
}
static int xe_pci_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
int err;
/* Give back the D3Cold decision to the runtime P M*/
d3cold_toggle(pdev, D3COLD_DISABLE);
err = pci_set_power_state(pdev, PCI_D0);
if (err)
return err;
pci_restore_state(pdev);
err = pci_enable_device(pdev);
if (err)
return err;
pci_set_master(pdev);
err = xe_pm_resume(pdev_to_xe_device(pdev));
if (err)
return err;
return 0 ;
}
static int xe_pci_runtime_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct xe_device *xe = pdev_to_xe_device(pdev);
int err;
err = xe_pm_runtime_suspend(xe);
if (err)
return err;
pci_save_state(pdev);
if (xe->d3cold.allowed) {
d3cold_toggle(pdev, D3COLD_ENABLE);
pci_disable_device(pdev);
pci_ignore_hotplug(pdev);
pci_set_power_state(pdev, PCI_D3cold);
} else {
d3cold_toggle(pdev, D3COLD_DISABLE);
pci_set_power_state(pdev, PCI_D3hot);
}
return 0 ;
}
static int xe_pci_runtime_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct xe_device *xe = pdev_to_xe_device(pdev);
int err;
err = pci_set_power_state(pdev, PCI_D0);
if (err)
return err;
pci_restore_state(pdev);
if (xe->d3cold.allowed) {
err = pci_enable_device(pdev);
if (err)
return err;
pci_set_master(pdev);
}
return xe_pm_runtime_resume(xe);
}
static int xe_pci_runtime_idle(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct xe_device *xe = pdev_to_xe_device(pdev);
xe_pm_d3cold_allowed_toggle(xe);
return 0 ;
}
static const struct dev_pm_ops xe_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(xe_pci_suspend, xe_pci_resume)
SET_RUNTIME_PM_OPS(xe_pci_runtime_suspend, xe_pci_runtime_resume, xe_pci_runtime_idle)
};
#endif
static struct pci_driver xe_pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
.probe = xe_pci_probe,
.remove = xe_pci_remove,
.shutdown = xe_pci_shutdown,
.sriov_configure = xe_pci_sriov_configure,
#ifdef CONFIG_PM_SLEEP
.driver.pm = &xe_pm_ops,
#endif
};
int xe_register_pci_driver(void )
{
return pci_register_driver(&xe_pci_driver);
}
void xe_unregister_pci_driver(void )
{
pci_unregister_driver(&xe_pci_driver);
}
#if IS_ENABLED(CONFIG_DRM_XE_KUNIT_TEST)
#include "tests/xe_pci.c"
#endif
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