iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon/kms: add support for cayman gart setup

Browse Source 
This patch sets up the gart in legacy mode.  We
probably want to switch to full VM mode at some point.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-03-02 20:07:30 -05:00 committed by Dave Airlie
parent fecf1d072f
commit fa8198eac8
2 changed files with 149 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

92
drivers/gpu/drm/radeon/ni.c
View File

@ -931,3 +931,95 @@ static void cayman_gpu_init(struct radeon_device *rdev)
udelay(50);
}
/*
* GART
*/
void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev)
{
/* flush hdp cache */
WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
/* bits 0-7 are the VM contexts0-7 */
WREG32(VM_INVALIDATE_REQUEST, 1);
}
int cayman_pcie_gart_enable(struct radeon_device *rdev)
{
int r;
if (rdev->gart.table.vram.robj == NULL) {
dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
return -EINVAL;
}
r = radeon_gart_table_vram_pin(rdev);
if (r)
return r;
radeon_gart_restore(rdev);
/* Setup TLB control */
WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB |
ENABLE_L1_FRAGMENT_PROCESSING |
SYSTEM_ACCESS_MODE_NOT_IN_SYS |
SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
/* Setup L2 cache */
WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
EFFECTIVE_L2_QUEUE_SIZE(7) |
CONTEXT1_IDENTITY_ACCESS_MODE(1));
WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
L2_CACHE_BIGK_FRAGMENT_SIZE(6));
/* setup context0 */
WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
(u32)(rdev->dummy_page.addr >> 12));
WREG32(VM_CONTEXT0_CNTL2, 0);
WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
/* disable context1-7 */
WREG32(VM_CONTEXT1_CNTL2, 0);
WREG32(VM_CONTEXT1_CNTL, 0);
cayman_pcie_gart_tlb_flush(rdev);
rdev->gart.ready = true;
return 0;
}
void cayman_pcie_gart_disable(struct radeon_device *rdev)
{
int r;
/* Disable all tables */
WREG32(VM_CONTEXT0_CNTL, 0);
WREG32(VM_CONTEXT1_CNTL, 0);
/* Setup TLB control */
WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING |
SYSTEM_ACCESS_MODE_NOT_IN_SYS |
SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
/* Setup L2 cache */
WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
EFFECTIVE_L2_QUEUE_SIZE(7) |
CONTEXT1_IDENTITY_ACCESS_MODE(1));
WREG32(VM_L2_CNTL2, 0);
WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
L2_CACHE_BIGK_FRAGMENT_SIZE(6));
if (rdev->gart.table.vram.robj) {
r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
if (likely(r == 0)) {
radeon_bo_kunmap(rdev->gart.table.vram.robj);
radeon_bo_unpin(rdev->gart.table.vram.robj);
radeon_bo_unreserve(rdev->gart.table.vram.robj);
}
}
}
void cayman_pcie_gart_fini(struct radeon_device *rdev)
{
cayman_pcie_gart_disable(rdev);
radeon_gart_table_vram_free(rdev);
radeon_gart_fini(rdev);
}

57
drivers/gpu/drm/radeon/nid.h
View File

@ -43,10 +43,66 @@
#define DMIF_ADDR_CONFIG 0xBD4
#define VM_CONTEXT0_REQUEST_RESPONSE 0x1470
#define REQUEST_TYPE(x) (((x) & 0xf) << 0)
#define RESPONSE_TYPE_MASK 0x000000F0
#define RESPONSE_TYPE_SHIFT 4
#define VM_L2_CNTL 0x1400
#define ENABLE_L2_CACHE (1 << 0)
#define ENABLE_L2_FRAGMENT_PROCESSING (1 << 1)
#define ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE (1 << 9)
#define ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE (1 << 10)
#define EFFECTIVE_L2_QUEUE_SIZE(x) (((x) & 7) << 14)
#define CONTEXT1_IDENTITY_ACCESS_MODE(x) (((x) & 3) << 18)
/* CONTEXT1_IDENTITY_ACCESS_MODE
* 0 physical = logical
* 1 logical via context1 page table
* 2 inside identity aperture use translation, outside physical = logical
* 3 inside identity aperture physical = logical, outside use translation
*/
#define VM_L2_CNTL2 0x1404
#define INVALIDATE_ALL_L1_TLBS (1 << 0)
#define INVALIDATE_L2_CACHE (1 << 1)
#define VM_L2_CNTL3 0x1408
#define BANK_SELECT(x) ((x) << 0)
#define CACHE_UPDATE_MODE(x) ((x) << 6)
#define L2_CACHE_BIGK_ASSOCIATIVITY (1 << 20)
#define L2_CACHE_BIGK_FRAGMENT_SIZE(x) ((x) << 15)
#define VM_L2_STATUS 0x140C
#define L2_BUSY (1 << 0)
#define VM_CONTEXT0_CNTL 0x1410
#define ENABLE_CONTEXT (1 << 0)
#define PAGE_TABLE_DEPTH(x) (((x) & 3) << 1)
#define RANGE_PROTECTION_FAULT_ENABLE_DEFAULT (1 << 4)
#define VM_CONTEXT1_CNTL 0x1414
#define VM_CONTEXT0_CNTL2 0x1430
#define VM_CONTEXT1_CNTL2 0x1434
#define VM_INVALIDATE_REQUEST 0x1478
#define VM_INVALIDATE_RESPONSE 0x147c
#define VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR 0x1518
#define VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR 0x151c
#define VM_CONTEXT0_PAGE_TABLE_BASE_ADDR 0x153C
#define VM_CONTEXT0_PAGE_TABLE_START_ADDR 0x155C
#define VM_CONTEXT0_PAGE_TABLE_END_ADDR 0x157C
#define MC_SHARED_CHMAP 0x2004
#define NOOFCHAN_SHIFT 12
#define NOOFCHAN_MASK 0x00003000
#define MC_SHARED_CHREMAP 0x2008
#define MC_VM_SYSTEM_APERTURE_LOW_ADDR 0x2034
#define MC_VM_SYSTEM_APERTURE_HIGH_ADDR 0x2038
#define MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR 0x203C
#define MC_VM_MX_L1_TLB_CNTL 0x2064
#define ENABLE_L1_TLB (1 << 0)
#define ENABLE_L1_FRAGMENT_PROCESSING (1 << 1)
#define SYSTEM_ACCESS_MODE_PA_ONLY (0 << 3)
#define SYSTEM_ACCESS_MODE_USE_SYS_MAP (1 << 3)
#define SYSTEM_ACCESS_MODE_IN_SYS (2 << 3)
#define SYSTEM_ACCESS_MODE_NOT_IN_SYS (3 << 3)
#define SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU (0 << 5)
#define ENABLE_ADVANCED_DRIVER_MODEL (1 << 6)
#define MC_SHARED_BLACKOUT_CNTL 0x20ac
#define MC_ARB_RAMCFG 0x2760
#define NOOFBANK_SHIFT 0
@ -87,6 +143,7 @@
#define CONFIG_MEMSIZE 0x5428
#define HDP_MEM_COHERENCY_FLUSH_CNTL 0x5480
#define HDP_REG_COHERENCY_FLUSH_CNTL 0x54A0
#define GRBM_CNTL 0x8000