drivers/gpu/drm/radeon/radeon_agp.c
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/radeon/radeon_agp.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/radeon/radeon_agp.c- Extension
.c- Size
- 12538 bytes
- Lines
- 379
- Domain
- Driver Families
- Bucket
- drivers/gpu
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/pci.hdrm/drm_device.hdrm/radeon_drm.hradeon.h
Detected Declarations
struct radeon_agpmode_quirkfunction radeon_agp_head_acquirefunction radeon_agp_head_releasefunction radeon_agp_head_enablefunction radeon_agp_head_infofunction radeon_agp_initfunction radeon_agp_resumefunction radeon_agp_finifunction radeon_agp_suspend
Annotated Snippet
struct radeon_agpmode_quirk {
u32 hostbridge_vendor;
u32 hostbridge_device;
u32 chip_vendor;
u32 chip_device;
u32 subsys_vendor;
u32 subsys_device;
u32 default_mode;
};
static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
/* Intel E7505 Memory Controller Hub / RV350 AR [Radeon 9600XT] Needs AGPMode 4 (deb #515326) */
{ PCI_VENDOR_ID_INTEL, 0x2550, PCI_VENDOR_ID_ATI, 0x4152, 0x1458, 0x4038, 4},
/* Intel 82865G/PE/P DRAM Controller/Host-Hub / Mobility 9800 Needs AGPMode 4 (deb #462590) */
{ PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x4a4e, PCI_VENDOR_ID_DELL, 0x5106, 4},
/* Intel 82865G/PE/P DRAM Controller/Host-Hub / RV280 [Radeon 9200 SE] Needs AGPMode 4 (lp #300304) */
{ PCI_VENDOR_ID_INTEL, 0x2570, PCI_VENDOR_ID_ATI, 0x5964,
0x148c, 0x2073, 4},
/* Intel 82855PM Processor to I/O Controller / Mobility M6 LY Needs AGPMode 1 (deb #467235) */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c59,
PCI_VENDOR_ID_IBM, 0x052f, 1},
/* Intel 82855PM host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #195051) */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e50,
PCI_VENDOR_ID_IBM, 0x0550, 1},
/* Intel 82855PM host bridge / RV250/M9 GL [Mobility FireGL 9000/Radeon 9000] needs AGPMode 1 (Thinkpad T40p) */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
PCI_VENDOR_ID_IBM, 0x054d, 1},
/* Intel 82855PM host bridge / Mobility M7 needs AGPMode 1 */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c57,
PCI_VENDOR_ID_IBM, 0x0530, 1},
/* Intel 82855PM host bridge / FireGL Mobility T2 RV350 Needs AGPMode 2 (fdo #20647) */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4e54,
PCI_VENDOR_ID_IBM, 0x054f, 2},
/* Intel 82855PM host bridge / Mobility M9+ / VaioPCG-V505DX Needs AGPMode 2 (fdo #17928) */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
PCI_VENDOR_ID_SONY, 0x816b, 2},
/* Intel 82855PM Processor to I/O Controller / Mobility M9+ Needs AGPMode 8 (phoronix forum) */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x5c61,
PCI_VENDOR_ID_SONY, 0x8195, 8},
/* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
{ PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
PCI_VENDOR_ID_DELL, 0x00e3, 2},
/* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
PCI_VENDOR_ID_DELL, 0x0149, 1},
/* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
PCI_VENDOR_ID_IBM, 0x0531, 1},
/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
0x1025, 0x0061, 1},
/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #203007) */
{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
0x1025, 0x0064, 1},
/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (lp #141551) */
{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
PCI_VENDOR_ID_ASUSTEK, 0x1942, 1},
/* Intel 82852/82855 host bridge / Mobility 9600/9700 Needs AGPMode 1 (deb #510208) */
{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
0x10cf, 0x127f, 1},
/* ASRock K7VT4A+ AGP 8x / ATI Radeon 9250 AGP Needs AGPMode 4 (lp #133192) */
{ 0x1849, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
0x1787, 0x5960, 4},
/* VIA K8M800 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (fdo #12544) */
{ PCI_VENDOR_ID_VIA, 0x0204, PCI_VENDOR_ID_ATI, 0x5960,
0x17af, 0x2020, 4},
/* VIA KT880 Host Bridge / RV350 [Radeon 9550] Needs AGPMode 4 (fdo #19981) */
{ PCI_VENDOR_ID_VIA, 0x0269, PCI_VENDOR_ID_ATI, 0x4153,
PCI_VENDOR_ID_ASUSTEK, 0x003c, 4},
/* VIA VT8363 Host Bridge / R200 QL [Radeon 8500] Needs AGPMode 2 (lp #141551) */
{ PCI_VENDOR_ID_VIA, 0x0305, PCI_VENDOR_ID_ATI, 0x514c,
PCI_VENDOR_ID_ATI, 0x013a, 2},
/* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 (deb #515512) */
{ PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
PCI_VENDOR_ID_ASUSTEK, 0x004c, 2},
/* VIA VT82C693A Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 2 */
{ PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_ATI, 0x5960,
PCI_VENDOR_ID_ASUSTEK, 0x0054, 2},
/* VIA VT8377 Host Bridge / R200 QM [Radeon 9100] Needs AGPMode 4 (deb #461144) */
{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x514d,
0x174b, 0x7149, 4},
/* VIA VT8377 Host Bridge / RV280 [Radeon 9200 PRO] Needs AGPMode 4 (lp #312693) */
{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5960,
0x1462, 0x0380, 4},
/* VIA VT8377 Host Bridge / RV280 Needs AGPMode 4 (ati ML) */
{ PCI_VENDOR_ID_VIA, 0x3189, PCI_VENDOR_ID_ATI, 0x5964,
0x148c, 0x2073, 4},
/* ATI Host Bridge / RV280 [M9+] Needs AGPMode 1 (phoronix forum) */
{ PCI_VENDOR_ID_ATI, 0xcbb2, PCI_VENDOR_ID_ATI, 0x5c61,
PCI_VENDOR_ID_SONY, 0x8175, 1},
Annotation
- Immediate include surface: `linux/pci.h`, `drm/drm_device.h`, `drm/radeon_drm.h`, `radeon.h`.
- Detected declarations: `struct radeon_agpmode_quirk`, `function radeon_agp_head_acquire`, `function radeon_agp_head_release`, `function radeon_agp_head_enable`, `function radeon_agp_head_info`, `function radeon_agp_init`, `function radeon_agp_resume`, `function radeon_agp_fini`, `function radeon_agp_suspend`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.