This replaces drm_mtrr_{add,del} with arch_phys_wc_{add,del}. The interface is simplified (because the base and size parameters to drm_mtrr_del never did anything), and it no longer adds MTRRs on systems that don't need them.
Signed-off-by: Andy Lutomirski luto@amacapital.net --- drivers/gpu/drm/ast/ast_ttm.c | 13 +++-------- drivers/gpu/drm/cirrus/cirrus_ttm.c | 15 ++++-------- drivers/gpu/drm/mgag200/mgag200_ttm.c | 14 ++++-------- drivers/gpu/drm/nouveau/nouveau_ttm.c | 13 ++++------- drivers/gpu/drm/savage/savage_bci.c | 43 ++++++++++++----------------------- drivers/gpu/drm/savage/savage_drv.h | 5 +--- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 10 ++++---- include/drm/drmP.h | 29 ----------------------- 8 files changed, 35 insertions(+), 107 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index 3602731..c4574fd 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -271,26 +271,19 @@ int ast_mm_init(struct ast_private *ast) return ret; }
- ast->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0), - pci_resource_len(dev->pdev, 0), - DRM_MTRR_WC); + ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0));
return 0; }
void ast_mm_fini(struct ast_private *ast) { - struct drm_device *dev = ast->dev; ttm_bo_device_release(&ast->ttm.bdev);
ast_ttm_global_release(ast);
- if (ast->fb_mtrr >= 0) { - drm_mtrr_del(ast->fb_mtrr, - pci_resource_start(dev->pdev, 0), - pci_resource_len(dev->pdev, 0), DRM_MTRR_WC); - ast->fb_mtrr = -1; - } + arch_phys_wc_del(ast->fb_mtrr); }
void ast_ttm_placement(struct ast_bo *bo, int domain) diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index 1413a26..09f06d3 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -271,9 +271,8 @@ int cirrus_mm_init(struct cirrus_device *cirrus) return ret; }
- cirrus->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0), - pci_resource_len(dev->pdev, 0), - DRM_MTRR_WC); + cirrus->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0));
cirrus->mm_inited = true; return 0; @@ -281,8 +280,6 @@ int cirrus_mm_init(struct cirrus_device *cirrus)
void cirrus_mm_fini(struct cirrus_device *cirrus) { - struct drm_device *dev = cirrus->dev; - if (!cirrus->mm_inited) return;
@@ -290,12 +287,8 @@ void cirrus_mm_fini(struct cirrus_device *cirrus)
cirrus_ttm_global_release(cirrus);
- if (cirrus->fb_mtrr >= 0) { - drm_mtrr_del(cirrus->fb_mtrr, - pci_resource_start(dev->pdev, 0), - pci_resource_len(dev->pdev, 0), DRM_MTRR_WC); - cirrus->fb_mtrr = -1; - } + arch_phys_wc_del(cirrus->fb_mtrr); + cirrus->fb_mtrr = 0; }
void cirrus_ttm_placement(struct cirrus_bo *bo, int domain) diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 8fc9d92..5c6f3c8 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -270,26 +270,20 @@ int mgag200_mm_init(struct mga_device *mdev) return ret; }
- mdev->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0), - pci_resource_len(dev->pdev, 0), - DRM_MTRR_WC); + mdev->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0), + pci_resource_len(dev->pdev, 0));
return 0; }
void mgag200_mm_fini(struct mga_device *mdev) { - struct drm_device *dev = mdev->dev; ttm_bo_device_release(&mdev->ttm.bdev);
mgag200_ttm_global_release(mdev);
- if (mdev->fb_mtrr >= 0) { - drm_mtrr_del(mdev->fb_mtrr, - pci_resource_start(dev->pdev, 0), - pci_resource_len(dev->pdev, 0), DRM_MTRR_WC); - mdev->fb_mtrr = -1; - } + arch_phys_wc_del(mdev->fb_mtrr); + mdev->fb_mtrr = 0; }
void mgag200_ttm_placement(struct mgag200_bo *bo, int domain) diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index 9be9cb5..63fa6a5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -377,9 +377,8 @@ nouveau_ttm_init(struct nouveau_drm *drm) return ret; }
- drm->ttm.mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 1), - pci_resource_len(dev->pdev, 1), - DRM_MTRR_WC); + drm->ttm.mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 1), + pci_resource_len(dev->pdev, 1));
/* GART init */ if (drm->agp.stat != ENABLED) { @@ -414,10 +413,6 @@ nouveau_ttm_fini(struct nouveau_drm *drm)
nouveau_ttm_global_release(drm);
- if (drm->ttm.mtrr >= 0) { - drm_mtrr_del(drm->ttm.mtrr, - pci_resource_start(drm->dev->pdev, 1), - pci_resource_len(drm->dev->pdev, 1), DRM_MTRR_WC); - drm->ttm.mtrr = -1; - } + arch_phys_wc_del(drm->ttm.mtrr); + drm->ttm.mtrr = 0; } diff --git a/drivers/gpu/drm/savage/savage_bci.c b/drivers/gpu/drm/savage/savage_bci.c index b55c1d6..bd6b2cf 100644 --- a/drivers/gpu/drm/savage/savage_bci.c +++ b/drivers/gpu/drm/savage/savage_bci.c @@ -570,9 +570,6 @@ int savage_driver_firstopen(struct drm_device *dev) unsigned int fb_rsrc, aper_rsrc; int ret = 0;
- dev_priv->mtrr[0].handle = -1; - dev_priv->mtrr[1].handle = -1; - dev_priv->mtrr[2].handle = -1; if (S3_SAVAGE3D_SERIES(dev_priv->chipset)) { fb_rsrc = 0; fb_base = pci_resource_start(dev->pdev, 0); @@ -584,21 +581,14 @@ int savage_driver_firstopen(struct drm_device *dev) if (pci_resource_len(dev->pdev, 0) == 0x08000000) { /* Don't make MMIO write-cobining! We need 3 * MTRRs. */ - dev_priv->mtrr[0].base = fb_base; - dev_priv->mtrr[0].size = 0x01000000; - dev_priv->mtrr[0].handle = - drm_mtrr_add(dev_priv->mtrr[0].base, - dev_priv->mtrr[0].size, DRM_MTRR_WC); - dev_priv->mtrr[1].base = fb_base + 0x02000000; - dev_priv->mtrr[1].size = 0x02000000; - dev_priv->mtrr[1].handle = - drm_mtrr_add(dev_priv->mtrr[1].base, - dev_priv->mtrr[1].size, DRM_MTRR_WC); - dev_priv->mtrr[2].base = fb_base + 0x04000000; - dev_priv->mtrr[2].size = 0x04000000; - dev_priv->mtrr[2].handle = - drm_mtrr_add(dev_priv->mtrr[2].base, - dev_priv->mtrr[2].size, DRM_MTRR_WC); + dev_priv->mtrr_handles[0] = + arch_phys_wc_add(fb_base, 0x01000000); + dev_priv->mtrr_handles[1] = + arch_phys_wc_add(fb_base + 0x02000000, + 0x02000000); + dev_priv->mtrr_handles[2] = + arch_phys_wc_add(fb_base + 0x04000000, + 0x04000000); } else { DRM_ERROR("strange pci_resource_len %08llx\n", (unsigned long long) @@ -616,11 +606,9 @@ int savage_driver_firstopen(struct drm_device *dev) if (pci_resource_len(dev->pdev, 1) == 0x08000000) { /* Can use one MTRR to cover both fb and * aperture. */ - dev_priv->mtrr[0].base = fb_base; - dev_priv->mtrr[0].size = 0x08000000; - dev_priv->mtrr[0].handle = - drm_mtrr_add(dev_priv->mtrr[0].base, - dev_priv->mtrr[0].size, DRM_MTRR_WC); + dev_priv->mtrr_handles[0] = + arch_phys_wc_add(fb_base, + 0x08000000); } else { DRM_ERROR("strange pci_resource_len %08llx\n", (unsigned long long) @@ -660,11 +648,10 @@ void savage_driver_lastclose(struct drm_device *dev) drm_savage_private_t *dev_priv = dev->dev_private; int i;
- for (i = 0; i < 3; ++i) - if (dev_priv->mtrr[i].handle >= 0) - drm_mtrr_del(dev_priv->mtrr[i].handle, - dev_priv->mtrr[i].base, - dev_priv->mtrr[i].size, DRM_MTRR_WC); + for (i = 0; i < 3; ++i) { + arch_phys_wc_del(dev_priv->mtrr_handles[i]); + dev_priv->mtrr_handles[i] = 0; + } }
int savage_driver_unload(struct drm_device *dev) diff --git a/drivers/gpu/drm/savage/savage_drv.h b/drivers/gpu/drm/savage/savage_drv.h index df2aac6..c05082a 100644 --- a/drivers/gpu/drm/savage/savage_drv.h +++ b/drivers/gpu/drm/savage/savage_drv.h @@ -160,10 +160,7 @@ typedef struct drm_savage_private { drm_local_map_t *cmd_dma; drm_local_map_t fake_dma;
- struct { - int handle; - unsigned long base, size; - } mtrr[3]; + int mtrr_handles[3];
/* BCI and status-related stuff */ volatile uint32_t *status_ptr, *bci_ptr; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 07dfd82..78e2164 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -565,8 +565,8 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) dev_priv->has_gmr = false; }
- dev_priv->mmio_mtrr = drm_mtrr_add(dev_priv->mmio_start, - dev_priv->mmio_size, DRM_MTRR_WC); + dev_priv->mmio_mtrr = arch_phys_wc_add(dev_priv->mmio_start, + dev_priv->mmio_size);
dev_priv->mmio_virt = ioremap_wc(dev_priv->mmio_start, dev_priv->mmio_size); @@ -664,8 +664,7 @@ out_no_device: out_err4: iounmap(dev_priv->mmio_virt); out_err3: - drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start, - dev_priv->mmio_size, DRM_MTRR_WC); + arch_phys_wc_del(dev_priv->mmio_mtrr); if (dev_priv->has_gmr) (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); @@ -709,8 +708,7 @@ static int vmw_driver_unload(struct drm_device *dev)
ttm_object_device_release(&dev_priv->tdev); iounmap(dev_priv->mmio_virt); - drm_mtrr_del(dev_priv->mmio_mtrr, dev_priv->mmio_start, - dev_priv->mmio_size, DRM_MTRR_WC); + arch_phys_wc_del(dev_priv->mmio_mtrr); if (dev_priv->has_gmr) (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 2d94d74..3e6cfa0 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1249,37 +1249,8 @@ static inline int drm_core_has_MTRR(struct drm_device *dev) { return drm_core_check_feature(dev, DRIVER_USE_MTRR); } - -#define DRM_MTRR_WC MTRR_TYPE_WRCOMB - -static inline int drm_mtrr_add(unsigned long offset, unsigned long size, - unsigned int flags) -{ - return mtrr_add(offset, size, flags, 1); -} - -static inline int drm_mtrr_del(int handle, unsigned long offset, - unsigned long size, unsigned int flags) -{ - return mtrr_del(handle, offset, size); -} - #else #define drm_core_has_MTRR(dev) (0) - -#define DRM_MTRR_WC 0 - -static inline int drm_mtrr_add(unsigned long offset, unsigned long size, - unsigned int flags) -{ - return 0; -} - -static inline int drm_mtrr_del(int handle, unsigned long offset, - unsigned long size, unsigned int flags) -{ - return 0; -} #endif
static inline void drm_device_set_unplugged(struct drm_device *dev)