diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c | 78 |
1 files changed, 43 insertions, 35 deletions
diff --git a/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c b/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c index 3107d2a12426..d414421f8c13 100644 --- a/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c +++ b/drivers/gpu/drm/xe/xe_ttm_stolen_mgr.c @@ -5,7 +5,6 @@ */ #include <drm/drm_managed.h> -#include <drm/drm_mm.h> #include <drm/ttm/ttm_device.h> #include <drm/ttm/ttm_placement.h> @@ -13,11 +12,13 @@ #include <generated/xe_wa_oob.h> +#include "regs/xe_bars.h" #include "regs/xe_gt_regs.h" #include "regs/xe_regs.h" #include "xe_bo.h" #include "xe_device.h" #include "xe_gt.h" +#include "xe_gt_printk.h" #include "xe_mmio.h" #include "xe_res_cursor.h" #include "xe_sriov.h" @@ -56,12 +57,35 @@ bool xe_ttm_stolen_cpu_access_needs_ggtt(struct xe_device *xe) return GRAPHICS_VERx100(xe) < 1270 && !IS_DGFX(xe); } +static u32 get_wopcm_size(struct xe_device *xe) +{ + u32 wopcm_size; + u64 val; + + val = xe_mmio_read64_2x32(xe_root_tile_mmio(xe), STOLEN_RESERVED); + val = REG_FIELD_GET64(WOPCM_SIZE_MASK, val); + + switch (val) { + case 0x5 ... 0x6: + val--; + fallthrough; + case 0x0 ... 0x3: + wopcm_size = (1U << val) * SZ_1M; + break; + default: + WARN(1, "Missing case wopcm_size=%llx\n", val); + wopcm_size = 0; + } + + return wopcm_size; +} + static s64 detect_bar2_dgfx(struct xe_device *xe, struct xe_ttm_stolen_mgr *mgr) { struct xe_tile *tile = xe_device_get_root_tile(xe); - struct xe_gt *mmio = xe_root_mmio_gt(xe); + struct xe_mmio *mmio = xe_root_tile_mmio(xe); struct pci_dev *pdev = to_pci_dev(xe->drm.dev); - u64 stolen_size; + u64 stolen_size, wopcm_size; u64 tile_offset; u64 tile_size; @@ -73,7 +97,13 @@ static s64 detect_bar2_dgfx(struct xe_device *xe, struct xe_ttm_stolen_mgr *mgr) if (drm_WARN_ON(&xe->drm, tile_size < mgr->stolen_base)) return 0; + /* Carve out the top of DSM as it contains the reserved WOPCM region */ + wopcm_size = get_wopcm_size(xe); + if (drm_WARN_ON(&xe->drm, !wopcm_size)) + return 0; + stolen_size = tile_size - mgr->stolen_base; + stolen_size -= wopcm_size; /* Verify usage fits in the actual resource available */ if (mgr->stolen_base + stolen_size <= pci_resource_len(pdev, LMEM_BAR)) @@ -88,29 +118,6 @@ static s64 detect_bar2_dgfx(struct xe_device *xe, struct xe_ttm_stolen_mgr *mgr) return ALIGN_DOWN(stolen_size, SZ_1M); } -static u32 get_wopcm_size(struct xe_device *xe) -{ - u32 wopcm_size; - u64 val; - - val = xe_mmio_read64_2x32(xe_root_mmio_gt(xe), STOLEN_RESERVED); - val = REG_FIELD_GET64(WOPCM_SIZE_MASK, val); - - switch (val) { - case 0x5 ... 0x6: - val--; - fallthrough; - case 0x0 ... 0x3: - wopcm_size = (1U << val) * SZ_1M; - break; - default: - WARN(1, "Missing case wopcm_size=%llx\n", val); - wopcm_size = 0; - } - - return wopcm_size; -} - static u32 detect_bar2_integrated(struct xe_device *xe, struct xe_ttm_stolen_mgr *mgr) { struct pci_dev *pdev = to_pci_dev(xe->drm.dev); @@ -118,7 +125,7 @@ static u32 detect_bar2_integrated(struct xe_device *xe, struct xe_ttm_stolen_mgr u32 stolen_size, wopcm_size; u32 ggc, gms; - ggc = xe_mmio_read32(xe_root_mmio_gt(xe), GGC); + ggc = xe_mmio_read32(xe_root_tile_mmio(xe), GGC); /* * Check GGMS: it should be fixed 0x3 (8MB), which corresponds to the @@ -158,7 +165,7 @@ static u32 detect_bar2_integrated(struct xe_device *xe, struct xe_ttm_stolen_mgr stolen_size -= wopcm_size; if (media_gt && XE_WA(media_gt, 14019821291)) { - u64 gscpsmi_base = xe_mmio_read64_2x32(media_gt, GSCPSMI_BASE) + u64 gscpsmi_base = xe_mmio_read64_2x32(&media_gt->mmio, GSCPSMI_BASE) & ~GENMASK_ULL(5, 0); /* @@ -204,9 +211,14 @@ void xe_ttm_stolen_mgr_init(struct xe_device *xe) { struct xe_ttm_stolen_mgr *mgr = drmm_kzalloc(&xe->drm, sizeof(*mgr), GFP_KERNEL); struct pci_dev *pdev = to_pci_dev(xe->drm.dev); - u64 stolen_size, io_size, pgsize; + u64 stolen_size, io_size; int err; + if (!mgr) { + drm_dbg_kms(&xe->drm, "Stolen mgr init failed\n"); + return; + } + if (IS_SRIOV_VF(xe)) stolen_size = 0; else if (IS_DGFX(xe)) @@ -221,10 +233,6 @@ void xe_ttm_stolen_mgr_init(struct xe_device *xe) return; } - pgsize = xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ? SZ_64K : SZ_4K; - if (pgsize < PAGE_SIZE) - pgsize = PAGE_SIZE; - /* * We don't try to attempt partial visible support for stolen vram, * since stolen is always at the end of vram, and the BAR size is pretty @@ -235,7 +243,7 @@ void xe_ttm_stolen_mgr_init(struct xe_device *xe) io_size = stolen_size; err = __xe_ttm_vram_mgr_init(xe, &mgr->base, XE_PL_STOLEN, stolen_size, - io_size, pgsize); + io_size, PAGE_SIZE); if (err) { drm_dbg_kms(&xe->drm, "Stolen mgr init failed: %i\n", err); return; @@ -298,7 +306,7 @@ static int __xe_ttm_stolen_io_mem_reserve_stolen(struct xe_device *xe, XE_WARN_ON(IS_DGFX(xe)); /* XXX: Require BO to be mapped to GGTT? */ - if (drm_WARN_ON(&xe->drm, !(bo->flags & XE_BO_CREATE_GGTT_BIT))) + if (drm_WARN_ON(&xe->drm, !(bo->flags & XE_BO_FLAG_GGTT))) return -EIO; /* GGTT is always contiguously mapped */ |