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BranchCommit messageAuthorAge
archive/unc-master-3.0P-FP: fix BUG_ON releated to priority inheritanceBjoern Brandenburg13 years
archived-2013.1uncachedev: mmap memory that is not cached by CPUsGlenn Elliott12 years
archived-private-masterMerge branch 'wip-2.6.34' into old-private-masterAndrea Bastoni15 years
archived-semi-partMerge branch 'wip-semi-part' of ssh://cvs/cvs/proj/litmus/repo/litmus2010 int...Andrea Bastoni15 years
demoFurther refinementsJonathan Herman14 years
ecrts-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
ecrts14-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
gpusync-rtss12Final GPUSync implementation.Glenn Elliott12 years
gpusync/stagingRename IKGLP R2DGLP.Glenn Elliott12 years
linux-tipMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/p...Linus Torvalds15 years
litmus2008-patch-seriesadd i386 feather-trace implementationBjoern B. Brandenburg16 years
masterPSN-EDF: use inferred_sporadic_job_release_atBjoern Brandenburg9 years
pgmmake it compileGlenn Elliott12 years
prop/litmus-signalsInfrastructure for Litmus signals.Glenn Elliott13 years
prop/robust-tie-breakFixed bug in edf_higher_prio().Glenn Elliott13 years
stagingFix tracepoint compilation errorFelipe Cerqueira13 years
test9/23/2016Namhoon Kim9 years
tracing-develTest kernel tracing events capabilitiesAndrea Bastoni16 years
v2.6.34-with-arm-patchessmsc911x: Add spinlocks around registers accessCatalin Marinas15 years
v2015.1Add ARM syscall def for get_current_budgetBjoern Brandenburg10 years
wip-2011.2-bbbLitmus core: simplify np-section protocolBjoern B. Brandenburg14 years
wip-2011.2-bbb-traceRefactor sched_trace_log_message() -> debug_trace_log_message()Andrea Bastoni14 years
wip-2012.3-gpuSOBLIV draining support for C-EDF.Glenn Elliott12 years
wip-2012.3-gpu-preportpick up last C-RM fileGlenn Elliott12 years
wip-2012.3-gpu-rtss13Fix critical bug in GPU tracker.Glenn Elliott12 years
wip-2012.3-gpu-sobliv-budget-w-ksharkProper sobliv draining and many bug fixes.Glenn Elliott12 years
wip-aedzl-finalMake it easier to compile AEDZL interfaces in liblitmus.Glenn Elliott15 years
wip-aedzl-revisedAdd sched_trace data for Apative EDZLGlenn Elliott15 years
wip-arbit-deadlineFix compilation bug.Glenn Elliott13 years
wip-aux-tasksDescription of refined aux task inheritance.Glenn Elliott13 years
wip-bbbGSN-EDF & Core: improve debug TRACE'ing for NP sectionsBjoern B. Brandenburg14 years
wip-bbb-prio-donuse correct timestampBjoern B. Brandenburg14 years
wip-better-breakImplement hash-based EDF tie-breaking.Glenn Elliott13 years
wip-binary-heapMake C-EDF work with simplified binheap_deleteGlenn Elliott13 years
wip-budgetAdded support for choices in budget policy enforcement.Glenn Elliott15 years
wip-colorSummarize schedulability with final recordJonathan Herman13 years
wip-color-jlhsched_color: Fixed two bugs causing crashing on experiment restart and a rare...Jonathan Herman13 years
wip-d10-hz1000Enable HZ=1000 on District 10Bjoern B. Brandenburg15 years
wip-default-clusteringFeature: Make default C-EDF clustering compile-time configurable.Glenn Elliott15 years
wip-dissipation-jericksoUpdate from 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-dissipation2-jericksoUpdate 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-ecrts14-pgmMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
wip-edf-hsblast tested versionJonathan Herman14 years
wip-edf-osLookup table EDF-osJeremy Erickson12 years
wip-edf-tie-breakMerge branch 'wip-edf-tie-break' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus...Glenn Elliott13 years
wip-edzl-critiqueUse hr_timer's active checks instead of having own flag.Glenn Elliott15 years
wip-edzl-finalImplementation of the EDZL scheduler.Glenn Elliott15 years
wip-edzl-revisedClean up comments.Glenn Elliott15 years
wip-eventsAdded support for tracing arbitrary actions.Jonathan Herman15 years
wip-extra-debugDBG: add additional tracingBjoern B. Brandenburg15 years
wip-fix-switch-jericksoAttempt to fix race condition with plugin switchingJeremy Erickson15 years
wip-fix3sched: show length of runqueue clock deactivation in /proc/sched_debugBjoern B. Brandenburg15 years
wip-fmlp-dequeueImprove FMLP queue management.Glenn Elliott14 years
wip-ft-irq-flagFeather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-gpu-cleanupEnable sched_trace log injection from userspaceGlenn Elliott13 years
wip-gpu-interruptsRemove option for threading of all softirqs.Glenn Elliott14 years
wip-gpu-rtas12Generalized GPU cost predictors + EWMA. (untested)Glenn Elliott13 years
wip-gpu-rtss12Final GPUSync implementation.Glenn Elliott13 years
wip-gpu-rtss12-srpexperimental changes to support GPUs under SRPGlenn Elliott13 years
wip-gpusync-mergeCleanup priority tracking for budget enforcement.Glenn Elliott11 years
wip-ikglpMove RSM and IKGLP imp. to own .c filesGlenn Elliott13 years
wip-k-fmlpMerge branch 'mpi-master' into wip-k-fmlpGlenn Elliott14 years
wip-kernel-coloringAdded recolor syscallNamhoon Kim7 years
wip-kernthreadsKludge work-queue processing into klitirqd.Glenn Elliott15 years
wip-klmirqd-to-auxAllow klmirqd threads to be given names.Glenn Elliott13 years
wip-ksharkMerge branch 'mpi-staging' into wip-ksharkJonathan Herman13 years
wip-litmus-3.2Merge commit 'v3.2' into litmus-stagingAndrea Bastoni13 years
wip-litmus2011.2Cleanup: Coding conformance for affinity stuff.Glenn Elliott14 years
wip-litmus3.0-2011.2Feather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-master-2.6.33-rtAvoid deadlock when switching task policy to BACKGROUND (ugly)Andrea Bastoni15 years
wip-mcRemoved ARM-specific hacks which disabled less common mixed-criticality featu...Jonathan Herman12 years
wip-mc-bipasaMC-EDF addedbipasa chattopadhyay13 years
wip-mc-jericksoSplit C/D queuesJeremy Erickson15 years
wip-mc2-cache-slackManually patched mc^2 related codeMing Yang10 years
wip-mcrit-maccosmeticMac Mollison15 years
wip-merge-3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-merge-v3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-migration-affinityNULL affinity dereference in C-EDF.Glenn Elliott14 years
wip-mmap-uncacheshare branch with othersGlenn Elliott13 years
wip-modechangeRTSS 2017 submissionNamhoon Kim8 years
wip-nested-lockingAppears to be working.Bryan Ward12 years
wip-omlp-gedfFirst implementation of G-OMLP.Glenn Elliott15 years
wip-paiSome cleanup of PAIGlenn Elliott14 years
wip-percore-lib9/21/2016Namhoon Kim9 years
wip-performanceCONFIG_DONT_PREEMPT_ON_TIE: Don't preeempt a scheduled task on priority tie.Glenn Elliott14 years
wip-pgmAdd PGM support to C-FLGlenn Elliott12 years
wip-pgm-splitFirst draft of C-FL-splitNamhoon Kim12 years
wip-pm-ovdAdd preemption-and-migration overhead tracing supportAndrea Bastoni15 years
wip-prio-inhP-EDF updated to use the generic pi framework.Glenn Elliott15 years
wip-prioq-dglBUG FIX: Support DGLs with PRIOQ_MUTEXGlenn Elliott13 years
wip-refactored-gedfGeneralizd architecture for GEDF-style scheduelrs to reduce code redundancy.Glenn Elliott15 years
wip-release-master-fixbugfix: release master CPU must signal task was pickedBjoern B. Brandenburg14 years
wip-robust-tie-breakEDF priority tie-breaks.Glenn Elliott13 years
wip-rt-ksharkMove task time accounting into the complete_job method.Jonathan Herman13 years
wip-rtas12-pgmScheduling of PGM jobs.Glenn Elliott13 years
wip-semi-partFix compile error with newer GCCJeremy Erickson12 years
wip-semi-part-edfos-jericksoUse initial CPU set by clientJeremy Erickson12 years
wip-shared-libTODO: Fix condition checks in replicate_page_move_mapping()Namhoon Kim9 years
wip-shared-lib2RTAS 2017 Submission ver.Namhoon Kim9 years
wip-shared-memInitial commit for shared libraryNamhoon Kim9 years
wip-splitting-jericksoFix release behaviorJeremy Erickson13 years
wip-splitting-omlp-jericksoBjoern's Dissertation Code with Priority DonationJeremy Erickson13 years
wip-stage-binheapAn efficient binary heap implementation.Glenn Elliott13 years
wip-sun-portDynamic memory allocation and clean exit for FeatherTraceChristopher Kenna15 years
wip-timer-tracebugfix: C-EDF, clear scheduled field of the correct CPU upon task_exitAndrea Bastoni15 years
wip-tracepointsAdd kernel-style events for sched_trace_XXX() functionsAndrea Bastoni14 years
 
TagDownloadAuthorAge
2015.1commit 8e51b37822...Bjoern Brandenburg10 years
2013.1commit bcaacec1ca...Glenn Elliott12 years
2012.3commit c158b5fbe4...Jonathan Herman13 years
2012.2commit b53c479a0f...Glenn Elliott13 years
2012.1commit 83b11ea1c6...Bjoern B. Brandenburg14 years
rtas12-mc-beta-expcommit 8e236ee20f...Christopher Kenna14 years
2011.1commit d11808b5c6...Christopher Kenna15 years
v2.6.37-rc4commit e8a7e48bb2...Linus Torvalds15 years
v2.6.37-rc3commit 3561d43fd2...Linus Torvalds15 years
v2.6.37-rc2commit e53beacd23...Linus Torvalds15 years
v2.6.37-rc1commit c8ddb2713c...Linus Torvalds15 years
v2.6.36commit f6f94e2ab1...Linus Torvalds15 years
2010.2commit 5c5456402d...Bjoern B. Brandenburg15 years
v2.6.36-rc8commit cd07202cc8...Linus Torvalds15 years
v2.6.36-rc7commit cb655d0f3d...Linus Torvalds15 years
v2.6.36-rc6commit 899611ee7d...Linus Torvalds15 years
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2010.1commit 7c1ff4c544...Andrea Bastoni15 years
v2.6.34commit e40152ee1e...Linus Torvalds15 years
v2.6.33.4commit 4640b4e7d9...Greg Kroah-Hartman15 years
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v2.6.15-rc3commit 624f54be20...Linus Torvalds20 years
v2.6.15-rc2commit 3bedff1d73...Linus Torvalds20 years
v2.6.15-rc1commit cd52d1ee9a...Linus Torvalds20 years
v2.6.14commit 741b2252a5...Linus Torvalds20 years
v2.6.14-rc5commit 93918e9afc...Linus Torvalds20 years
v2.6.14-rc4commit 907a426179...Linus Torvalds20 years
v2.6.14-rc3commit 1c9426e8a5...Linus Torvalds20 years
v2.6.14-rc2commit 676d55ae30...Linus Torvalds20 years
v2.6.14-rc1commit 2f4ba45a75...Linus Torvalds20 years
v2.6.13commit 02b3e4e2d7...Linus Torvalds20 years
v2.6.13-rc7commit 0572e3da3f...Linus Torvalds20 years
v2.6.13-rc6commit 6fc32179de...Linus Torvalds20 years
v2.6.13-rc5commit 9a351e30d7...Linus Torvalds20 years
v2.6.13-rc4commit 6395352334...Linus Torvalds20 years
v2.6.11tree c39ae07f39...
v2.6.11-treetree c39ae07f39...
v2.6.12commit 9ee1c939d1...
v2.6.12-rc2commit 1da177e4c3...
v2.6.12-rc3commit a2755a80f4...
v2.6.12-rc4commit 88d7bd8cb9...
v2.6.12-rc5commit 2a24ab628a...
v2.6.12-rc6commit 7cef5677ef...
v2.6.13-rc1commit 4c91aedb75...
v2.6.13-rc2commit a18bcb7450...
v2.6.13-rc3commit c32511e271...
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-08 12:17:58 -0400
pt">) { union palette pal; if (regno >= current_par.palette_size) return 1; if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) { u32 pseudo_val; pseudo_val = regno << info->var.red.offset; pseudo_val |= regno << info->var.green.offset; pseudo_val |= regno << info->var.blue.offset; ((u32 *)info->pseudo_palette)[regno] = pseudo_val; } pal.p = 0; pal.vidc20.red = red >> 8; pal.vidc20.green = green >> 8; pal.vidc20.blue = blue >> 8; current_par.palette[regno] = pal; if (info->var.bits_per_pixel == 16) { int i; pal.p = 0; vidc_writel(0x10000000); for (i = 0; i < 256; i += 1) { pal.vidc20.red = current_par.palette[ i & 31].vidc20.red; pal.vidc20.green = current_par.palette[(i >> 1) & 31].vidc20.green; pal.vidc20.blue = current_par.palette[(i >> 2) & 31].vidc20.blue; vidc_writel(pal.p); /* Palette register pointer auto-increments */ } } else { vidc_writel(0x10000000 | regno); vidc_writel(pal.p); } return 0; } #endif /* * Before selecting the timing parameters, adjust * the resolution to fit the rules. */ static int acornfb_adjust_timing(struct fb_info *info, struct fb_var_screeninfo *var, u_int fontht) { u_int font_line_len, sam_size, min_size, size, nr_y; /* xres must be even */ var->xres = (var->xres + 1) & ~1; /* * We don't allow xres_virtual to differ from xres */ var->xres_virtual = var->xres; var->xoffset = 0; if (current_par.using_vram) sam_size = current_par.vram_half_sam * 2; else sam_size = 16; /* * Now, find a value for yres_virtual which allows * us to do ywrap scrolling. The value of * yres_virtual must be such that the end of the * displayable frame buffer must be aligned with * the start of a font line. */ font_line_len = var->xres * var->bits_per_pixel * fontht / 8; min_size = var->xres * var->yres * var->bits_per_pixel / 8; /* * If minimum screen size is greater than that we have * available, reject it. */ if (min_size > info->fix.smem_len) return -EINVAL; /* Find int 'y', such that y * fll == s * sam < maxsize * y = s * sam / fll; s = maxsize / sam */ for (size = info->fix.smem_len; nr_y = size / font_line_len, min_size <= size; size -= sam_size) { if (nr_y * font_line_len == size) break; } nr_y *= fontht; if (var->accel_flags & FB_ACCELF_TEXT) { if (min_size > size) { /* * failed, use ypan */ size = info->fix.smem_len; var->yres_virtual = size / (font_line_len / fontht); } else var->yres_virtual = nr_y; } else if (var->yres_virtual > nr_y) var->yres_virtual = nr_y; current_par.screen_end = info->fix.smem_start + size; /* * Fix yres & yoffset if needed. */ if (var->yres > var->yres_virtual) var->yres = var->yres_virtual; if (var->vmode & FB_VMODE_YWRAP) { if (var->yoffset > var->yres_virtual) var->yoffset = var->yres_virtual; } else { if (var->yoffset + var->yres > var->yres_virtual) var->yoffset = var->yres_virtual - var->yres; } /* hsync_len must be even */ var->hsync_len = (var->hsync_len + 1) & ~1; #ifdef HAS_VIDC /* left_margin must be odd */ if ((var->left_margin & 1) == 0) { var->left_margin -= 1; var->right_margin += 1; } /* right_margin must be odd */ var->right_margin |= 1; #elif defined(HAS_VIDC20) /* left_margin must be even */ if (var->left_margin & 1) { var->left_margin += 1; var->right_margin -= 1; } /* right_margin must be even */ if (var->right_margin & 1) var->right_margin += 1; #endif if (var->vsync_len < 1) var->vsync_len = 1; return 0; } static int acornfb_validate_timing(struct fb_var_screeninfo *var, struct fb_monspecs *monspecs) { unsigned long hs, vs; /* * hs(Hz) = 10^12 / (pixclock * xtotal) * vs(Hz) = hs(Hz) / ytotal * * No need to do long long divisions or anything * like that if you factor it correctly */ hs = 1953125000 / var->pixclock; hs = hs * 512 / (var->xres + var->left_margin + var->right_margin + var->hsync_len); vs = hs / (var->yres + var->upper_margin + var->lower_margin + var->vsync_len); return (vs >= monspecs->vfmin && vs <= monspecs->vfmax && hs >= monspecs->hfmin && hs <= monspecs->hfmax) ? 0 : -EINVAL; } static inline void acornfb_update_dma(struct fb_info *info, struct fb_var_screeninfo *var) { u_int off = var->yoffset * info->fix.line_length; #if defined(HAS_MEMC) memc_write(VDMA_INIT, off >> 2); #elif defined(HAS_IOMD) iomd_writel(info->fix.smem_start + off, IOMD_VIDINIT); #endif } static int acornfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { u_int fontht; int err; /* * FIXME: Find the font height */ fontht = 8; var->red.msb_right = 0; var->green.msb_right = 0; var->blue.msb_right = 0; var->transp.msb_right = 0; switch (var->bits_per_pixel) { case 1: case 2: case 4: case 8: var->red.offset = 0; var->red.length = var->bits_per_pixel; var->green = var->red; var->blue = var->red; var->transp.offset = 0; var->transp.length = 0; break; #ifdef HAS_VIDC20 case 16: var->red.offset = 0; var->red.length = 5; var->green.offset = 5; var->green.length = 5; var->blue.offset = 10; var->blue.length = 5; var->transp.offset = 15; var->transp.length = 1; break; case 32: var->red.offset = 0; var->red.length = 8; var->green.offset = 8; var->green.length = 8; var->blue.offset = 16; var->blue.length = 8; var->transp.offset = 24; var->transp.length = 4; break; #endif default: return -EINVAL; } /* * Check to see if the pixel rate is valid. */ if (!acornfb_valid_pixrate(var)) return -EINVAL; /* * Validate and adjust the resolution to * match the video generator hardware. */ err = acornfb_adjust_timing(info, var, fontht); if (err) return err; /* * Validate the timing against the * monitor hardware. */ return acornfb_validate_timing(var, &info->monspecs); } static int acornfb_set_par(struct fb_info *info) { switch (info->var.bits_per_pixel) { case 1: current_par.palette_size = 2; info->fix.visual = FB_VISUAL_MONO10; break; case 2: current_par.palette_size = 4; info->fix.visual = FB_VISUAL_PSEUDOCOLOR; break; case 4: current_par.palette_size = 16; info->fix.visual = FB_VISUAL_PSEUDOCOLOR; break; case 8: current_par.palette_size = VIDC_PALETTE_SIZE; #ifdef HAS_VIDC info->fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR; #else info->fix.visual = FB_VISUAL_PSEUDOCOLOR; #endif break; #ifdef HAS_VIDC20 case 16: current_par.palette_size = 32; info->fix.visual = FB_VISUAL_DIRECTCOLOR; break; case 32: current_par.palette_size = VIDC_PALETTE_SIZE; info->fix.visual = FB_VISUAL_DIRECTCOLOR; break; #endif default: BUG(); } info->fix.line_length = (info->var.xres * info->var.bits_per_pixel) / 8; #if defined(HAS_MEMC) { unsigned long size = info->fix.smem_len - VDMA_XFERSIZE; memc_write(VDMA_START, 0); memc_write(VDMA_END, size >> 2); } #elif defined(HAS_IOMD) { unsigned long start, size; u_int control; start = info->fix.smem_start; size = current_par.screen_end; if (current_par.using_vram) { size -= current_par.vram_half_sam; control = DMA_CR_E | (current_par.vram_half_sam / 256); } else { size -= 16; control = DMA_CR_E | DMA_CR_D | 16; } iomd_writel(start, IOMD_VIDSTART); iomd_writel(size, IOMD_VIDEND); iomd_writel(control, IOMD_VIDCR); } #endif acornfb_update_dma(info, &info->var); acornfb_set_timing(info); return 0; } static int acornfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { u_int y_bottom = var->yoffset; if (!(var->vmode & FB_VMODE_YWRAP)) y_bottom += var->yres; BUG_ON(y_bottom > var->yres_virtual); acornfb_update_dma(info, var); return 0; } /* * Note that we are entered with the kernel locked. */ static int acornfb_mmap(struct fb_info *info, struct vm_area_struct *vma) { unsigned long off, start; u32 len; off = vma->vm_pgoff << PAGE_SHIFT; start = info->fix.smem_start; len = PAGE_ALIGN(start & ~PAGE_MASK) + info->fix.smem_len; start &= PAGE_MASK; if ((vma->vm_end - vma->vm_start + off) > len) return -EINVAL; off += start; vma->vm_pgoff = off >> PAGE_SHIFT; /* This is an IO map - tell maydump to skip this VMA */ vma->vm_flags |= VM_IO; vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); /* * Don't alter the page protection flags; we want to keep the area * cached for better performance. This does mean that we may miss * some updates to the screen occasionally, but process switches * should cause the caches and buffers to be flushed often enough. */ if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot)) return -EAGAIN; return 0; } static struct fb_ops acornfb_ops = { .owner = THIS_MODULE, .fb_check_var = acornfb_check_var, .fb_set_par = acornfb_set_par, .fb_setcolreg = acornfb_setcolreg, .fb_pan_display = acornfb_pan_display, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, .fb_mmap = acornfb_mmap, }; /* * Everything after here is initialisation!!! */ static struct fb_videomode modedb[] __initdata = { { /* 320x256 @ 50Hz */ NULL, 50, 320, 256, 125000, 92, 62, 35, 19, 38, 2, FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 640x250 @ 50Hz, 15.6 kHz hsync */ NULL, 50, 640, 250, 62500, 185, 123, 38, 21, 76, 3, 0, FB_VMODE_NONINTERLACED }, { /* 640x256 @ 50Hz, 15.6 kHz hsync */ NULL, 50, 640, 256, 62500, 185, 123, 35, 18, 76, 3, 0, FB_VMODE_NONINTERLACED }, { /* 640x512 @ 50Hz, 26.8 kHz hsync */ NULL, 50, 640, 512, 41667, 113, 87, 18, 1, 56, 3, 0, FB_VMODE_NONINTERLACED }, { /* 640x250 @ 70Hz, 31.5 kHz hsync */ NULL, 70, 640, 250, 39722, 48, 16, 109, 88, 96, 2, 0, FB_VMODE_NONINTERLACED }, { /* 640x256 @ 70Hz, 31.5 kHz hsync */ NULL, 70, 640, 256, 39722, 48, 16, 106, 85, 96, 2, 0, FB_VMODE_NONINTERLACED }, { /* 640x352 @ 70Hz, 31.5 kHz hsync */ NULL, 70, 640, 352, 39722, 48, 16, 58, 37, 96, 2, 0, FB_VMODE_NONINTERLACED }, { /* 640x480 @ 60Hz, 31.5 kHz hsync */ NULL, 60, 640, 480, 39722, 48, 16, 32, 11, 96, 2, 0, FB_VMODE_NONINTERLACED }, { /* 800x600 @ 56Hz, 35.2 kHz hsync */ NULL, 56, 800, 600, 27778, 101, 23, 22, 1, 100, 2, 0, FB_VMODE_NONINTERLACED }, { /* 896x352 @ 60Hz, 21.8 kHz hsync */ NULL, 60, 896, 352, 41667, 59, 27, 9, 0, 118, 3, 0, FB_VMODE_NONINTERLACED }, { /* 1024x 768 @ 60Hz, 48.4 kHz hsync */ NULL, 60, 1024, 768, 15385, 160, 24, 29, 3, 136, 6, 0, FB_VMODE_NONINTERLACED }, { /* 1280x1024 @ 60Hz, 63.8 kHz hsync */ NULL, 60, 1280, 1024, 9090, 186, 96, 38, 1, 160, 3, 0, FB_VMODE_NONINTERLACED } }; static struct fb_videomode __initdata acornfb_default_mode = { .name = NULL, .refresh = 60, .xres = 640, .yres = 480, .pixclock = 39722, .left_margin = 56, .right_margin = 16, .upper_margin = 34, .lower_margin = 9, .hsync_len = 88, .vsync_len = 2, .sync = 0, .vmode = FB_VMODE_NONINTERLACED }; static void __init acornfb_init_fbinfo(void) { static int first = 1; if (!first) return; first = 0; fb_info.fbops = &acornfb_ops; fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; fb_info.pseudo_palette = current_par.pseudo_palette; strcpy(fb_info.fix.id, "Acorn"); fb_info.fix.type = FB_TYPE_PACKED_PIXELS; fb_info.fix.type_aux = 0; fb_info.fix.xpanstep = 0; fb_info.fix.ypanstep = 1; fb_info.fix.ywrapstep = 1; fb_info.fix.line_length = 0; fb_info.fix.accel = FB_ACCEL_NONE; /* * setup initial parameters */ memset(&fb_info.var, 0, sizeof(fb_info.var)); #if defined(HAS_VIDC20) fb_info.var.red.length = 8; fb_info.var.transp.length = 4; #elif defined(HAS_VIDC) fb_info.var.red.length = 4; fb_info.var.transp.length = 1; #endif fb_info.var.green = fb_info.var.red; fb_info.var.blue = fb_info.var.red; fb_info.var.nonstd = 0; fb_info.var.activate = FB_ACTIVATE_NOW; fb_info.var.height = -1; fb_info.var.width = -1; fb_info.var.vmode = FB_VMODE_NONINTERLACED; fb_info.var.accel_flags = FB_ACCELF_TEXT; current_par.dram_size = 0; current_par.montype = -1; current_par.dpms = 0; } /* * setup acornfb options: * * mon:hmin-hmax:vmin-vmax:dpms:width:height * Set monitor parameters: * hmin = horizontal minimum frequency (Hz) * hmax = horizontal maximum frequency (Hz) (optional) * vmin = vertical minimum frequency (Hz) * vmax = vertical maximum frequency (Hz) (optional) * dpms = DPMS supported? (optional) * width = width of picture in mm. (optional) * height = height of picture in mm. (optional) * * montype:type * Set RISC-OS style monitor type: * 0 (or tv) - TV frequency * 1 (or multi) - Multi frequency * 2 (or hires) - Hi-res monochrome * 3 (or vga) - VGA * 4 (or svga) - SVGA * auto, or option missing * - try hardware detect * * dram:size * Set the amount of DRAM to use for the frame buffer * (even if you have VRAM). * size can optionally be followed by 'M' or 'K' for * MB or KB respectively. */ static void __init acornfb_parse_mon(char *opt) { char *p = opt; current_par.montype = -2; fb_info.monspecs.hfmin = simple_strtoul(p, &p, 0); if (*p == '-') fb_info.monspecs.hfmax = simple_strtoul(p + 1, &p, 0); else fb_info.monspecs.hfmax = fb_info.monspecs.hfmin; if (*p != ':') goto bad; fb_info.monspecs.vfmin = simple_strtoul(p + 1, &p, 0); if (*p == '-') fb_info.monspecs.vfmax = simple_strtoul(p + 1, &p, 0); else fb_info.monspecs.vfmax = fb_info.monspecs.vfmin; if (*p != ':') goto check_values; fb_info.monspecs.dpms = simple_strtoul(p + 1, &p, 0); if (*p != ':') goto check_values; fb_info.var.width = simple_strtoul(p + 1, &p, 0); if (*p != ':') goto check_values; fb_info.var.height = simple_strtoul(p + 1, NULL, 0); check_values: if (fb_info.monspecs.hfmax < fb_info.monspecs.hfmin || fb_info.monspecs.vfmax < fb_info.monspecs.vfmin) goto bad; return; bad: printk(KERN_ERR "Acornfb: bad monitor settings: %s\n", opt); current_par.montype = -1; } static void __init acornfb_parse_montype(char *opt) { current_par.montype = -2; if (strncmp(opt, "tv", 2) == 0) { opt += 2; current_par.montype = 0; } else if (strncmp(opt, "multi", 5) == 0) { opt += 5; current_par.montype = 1; } else if (strncmp(opt, "hires", 5) == 0) { opt += 5; current_par.montype = 2; } else if (strncmp(opt, "vga", 3) == 0) { opt += 3; current_par.montype = 3; } else if (strncmp(opt, "svga", 4) == 0) { opt += 4; current_par.montype = 4; } else if (strncmp(opt, "auto", 4) == 0) { opt += 4; current_par.montype = -1; } else if (isdigit(*opt)) current_par.montype = simple_strtoul(opt, &opt, 0); if (current_par.montype == -2 || current_par.montype > NR_MONTYPES) { printk(KERN_ERR "acornfb: unknown monitor type: %s\n", opt); current_par.montype = -1; } else if (opt && *opt) { if (strcmp(opt, ",dpms") == 0) current_par.dpms = 1; else printk(KERN_ERR "acornfb: unknown monitor option: %s\n", opt); } } static void __init acornfb_parse_dram(char *opt) { unsigned int size; size = simple_strtoul(opt, &opt, 0); if (opt) { switch (*opt) { case 'M': case 'm': size *= 1024; case 'K': case 'k': size *= 1024; default: break; } } current_par.dram_size = size; } static struct options { char *name; void (*parse)(char *opt); } opt_table[] __initdata = { { "mon", acornfb_parse_mon }, { "montype", acornfb_parse_montype }, { "dram", acornfb_parse_dram }, { NULL, NULL } }; int __init acornfb_setup(char *options) { struct options *optp; char *opt; if (!options || !*options) return 0; acornfb_init_fbinfo(); while ((opt = strsep(&options, ",")) != NULL) { if (!*opt) continue; for (optp = opt_table; optp->name; optp++) { int optlen; optlen = strlen(optp->name); if (strncmp(opt, optp->name, optlen) == 0 && opt[optlen] == ':') { optp->parse(opt + optlen + 1); break; } } if (!optp->name) printk(KERN_ERR "acornfb: unknown parameter: %s\n", opt); } return 0; } /* * Detect type of monitor connected * For now, we just assume SVGA */ static int __init acornfb_detect_monitortype(void) { return 4; } /* * This enables the unused memory to be freed on older Acorn machines. * We are freeing memory on behalf of the architecture initialisation * code here. */ static inline void free_unused_pages(unsigned int virtual_start, unsigned int virtual_end) { int mb_freed = 0; /* * Align addresses */ virtual_start = PAGE_ALIGN(virtual_start); virtual_end = PAGE_ALIGN(virtual_end); while (virtual_start < virtual_end) { struct page *page; /* * Clear page reserved bit, * set count to 1, and free * the page. */ page = virt_to_page(virtual_start); ClearPageReserved(page); init_page_count(page); free_page(virtual_start); virtual_start += PAGE_SIZE; mb_freed += PAGE_SIZE / 1024; } printk("acornfb: freed %dK memory\n", mb_freed); } static int __init acornfb_probe(struct platform_device *dev) { unsigned long size; u_int h_sync, v_sync; int rc, i; char *option = NULL; if (fb_get_options("acornfb", &option)) return -ENODEV; acornfb_setup(option); acornfb_init_fbinfo(); current_par.dev = &dev->dev; if (current_par.montype == -1) current_par.montype = acornfb_detect_monitortype(); if (current_par.montype == -1 || current_par.montype > NR_MONTYPES) current_par.montype = 4; if (current_par.montype >= 0) { fb_info.monspecs = monspecs[current_par.montype]; fb_info.monspecs.dpms = current_par.dpms; } /* * Try to select a suitable default mode */ for (i = 0; i < sizeof(modedb) / sizeof(*modedb); i++) { unsigned long hs; hs = modedb[i].refresh * (modedb[i].yres + modedb[i].upper_margin + modedb[i].lower_margin + modedb[i].vsync_len); if (modedb[i].xres == DEFAULT_XRES && modedb[i].yres == DEFAULT_YRES && modedb[i].refresh >= fb_info.monspecs.vfmin && modedb[i].refresh <= fb_info.monspecs.vfmax && hs >= fb_info.monspecs.hfmin && hs <= fb_info.monspecs.hfmax) { acornfb_default_mode = modedb[i]; break; } } fb_info.screen_base = (char *)SCREEN_BASE; fb_info.fix.smem_start = SCREEN_START; current_par.using_vram = 0; /* * If vram_size is set, we are using VRAM in * a Risc PC. However, if the user has specified * an amount of DRAM then use that instead. */ if (vram_size && !current_par.dram_size) { size = vram_size; current_par.vram_half_sam = vram_size / 1024; current_par.using_vram = 1; } else if (current_par.dram_size) size = current_par.dram_size; else size = MAX_SIZE; /* * Limit maximum screen size. */ if (size > MAX_SIZE) size = MAX_SIZE; size = PAGE_ALIGN(size); #if defined(HAS_VIDC20) if (!current_par.using_vram) { dma_addr_t handle; void *base; /* * RiscPC needs to allocate the DRAM memory * for the framebuffer if we are not using * VRAM. */ base = dma_alloc_writecombine(current_par.dev, size, &handle, GFP_KERNEL); if (base == NULL) { printk(KERN_ERR "acornfb: unable to allocate screen " "memory\n"); return -ENOMEM; } fb_info.screen_base = base; fb_info.fix.smem_start = handle; } #endif #if defined(HAS_VIDC) /* * Archimedes/A5000 machines use a fixed address for their * framebuffers. Free unused pages */ free_unused_pages(PAGE_OFFSET + size, PAGE_OFFSET + MAX_SIZE); #endif fb_info.fix.smem_len = size; current_par.palette_size = VIDC_PALETTE_SIZE; /* * Lookup the timing for this resolution. If we can't * find it, then we can't restore it if we change * the resolution, so we disable this feature. */ do { rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb, sizeof(modedb) / sizeof(*modedb), &acornfb_default_mode, DEFAULT_BPP); /* * If we found an exact match, all ok. */ if (rc == 1) break; rc = fb_find_mode(&fb_info.var, &fb_info, NULL, NULL, 0, &acornfb_default_mode, DEFAULT_BPP); /* * If we found an exact match, all ok. */ if (rc == 1) break; rc = fb_find_mode(&fb_info.var, &fb_info, NULL, modedb, sizeof(modedb) / sizeof(*modedb), &acornfb_default_mode, DEFAULT_BPP); if (rc) break; rc = fb_find_mode(&fb_info.var, &fb_info, NULL, NULL, 0, &acornfb_default_mode, DEFAULT_BPP); } while (0); /* * If we didn't find an exact match, try the * generic database. */ if (rc == 0) { printk("Acornfb: no valid mode found\n"); return -EINVAL; } h_sync = 1953125000 / fb_info.var.pixclock; h_sync = h_sync * 512 / (fb_info.var.xres + fb_info.var.left_margin + fb_info.var.right_margin + fb_info.var.hsync_len); v_sync = h_sync / (fb_info.var.yres + fb_info.var.upper_margin + fb_info.var.lower_margin + fb_info.var.vsync_len); printk(KERN_INFO "Acornfb: %dkB %cRAM, %s, using %dx%d, " "%d.%03dkHz, %dHz\n", fb_info.fix.smem_len / 1024, current_par.using_vram ? 'V' : 'D', VIDC_NAME, fb_info.var.xres, fb_info.var.yres, h_sync / 1000, h_sync % 1000, v_sync); printk(KERN_INFO "Acornfb: Monitor: %d.%03d-%d.%03dkHz, %d-%dHz%s\n", fb_info.monspecs.hfmin / 1000, fb_info.monspecs.hfmin % 1000, fb_info.monspecs.hfmax / 1000, fb_info.monspecs.hfmax % 1000, fb_info.monspecs.vfmin, fb_info.monspecs.vfmax, fb_info.monspecs.dpms ? ", DPMS" : ""); if (fb_set_var(&fb_info, &fb_info.var)) printk(KERN_ERR "Acornfb: unable to set display parameters\n"); if (register_framebuffer(&fb_info) < 0) return -EINVAL; return 0; } static struct platform_driver acornfb_driver = { .probe = acornfb_probe, .driver = { .name = "acornfb", }, }; static int __init acornfb_init(void) { return platform_driver_register(&acornfb_driver); } module_init(acornfb_init); MODULE_AUTHOR("Russell King"); MODULE_DESCRIPTION("VIDC 1/1a/20 framebuffer driver"); MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-08 12:17:58 -0400