diff options
| author | Eric Anholt <anholt@freebsd.org> | 2004-09-17 05:16:45 +0000 |
|---|---|---|
| committer | Eric Anholt <anholt@freebsd.org> | 2004-09-17 05:16:45 +0000 |
| commit | 17e5f3c1169066be1004306d12b5398cf01cbd35 (patch) | |
| tree | e0f672be6ef190d38709f7d7b8e9a48dd5260a6a /src/radeon.h | |
| parent | 29bbee6b8a8dd1b883e07547691ff8e1289459ce (diff) | |
Bugzilla #1170: Fix an overcounting of DMA in BEGIN_RING that wasn't
harmful. Bugzilla #1169: Add counting for
BEGIN_RING/OUT_RING/ADVANCE_RING to avoid these sorts of problems in
the future.
Diffstat (limited to 'src/radeon.h')
| -rw-r--r-- | src/radeon.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/src/radeon.h b/src/radeon.h index 523d2b7..576295f 100644 --- a/src/radeon.h +++ b/src/radeon.h @@ -543,7 +543,12 @@ typedef struct { #ifdef PER_CONTEXT_SAREA int perctx_sarea_size; #endif -#endif + + /* Debugging info for BEGIN_RING/ADVANCE_RING pairs. */ + int dma_begin_count; + char *dma_debug_func; + int dma_debug_lineno; +#endif /* XF86DRI */ /* XVideo */ XF86VideoAdaptorPtr adaptor; @@ -718,13 +723,21 @@ do { \ #define RADEON_VERBOSE 0 -#define RING_LOCALS CARD32 *__head = NULL; int __count = 0 +#define RING_LOCALS CARD32 *__head = NULL; int __expected; int __count = 0 #define BEGIN_RING(n) do { \ if (RADEON_VERBOSE) { \ xf86DrvMsg(pScrn->scrnIndex, X_INFO, \ "BEGIN_RING(%d) in %s\n", n, __FUNCTION__); \ } \ + if (++info->dma_begin_count != 1) { \ + xf86DrvMsg(pScrn->scrnIndex, X_ERROR, \ + "BEGIN_RING without end at %s:%d\n", \ + info->dma_debug_func, info->dma_debug_lineno); \ + info->dma_begin_count = 1; \ + } \ + info->dma_debug_func = __FILE__; \ + info->dma_debug_lineno = __LINE__; \ if (!info->indirectBuffer) { \ info->indirectBuffer = RADEONCPGetBuffer(pScrn); \ info->indirectStart = 0; \ @@ -732,12 +745,24 @@ do { \ info->indirectBuffer->total) { \ RADEONCPFlushIndirect(pScrn, 1); \ } \ + __expected = n; \ __head = (pointer)((char *)info->indirectBuffer->address + \ info->indirectBuffer->used); \ __count = 0; \ } while (0) #define ADVANCE_RING() do { \ + if (info->dma_begin_count-- != 1) { \ + xf86DrvMsg(pScrn->scrnIndex, X_ERROR, \ + "ADVANCE_RING without begin at %s:%d\n", \ + __FILE__, __LINE__); \ + info->dma_begin_count = 0; \ + } \ + if (__count != __expected) { \ + xf86DrvMsg(pScrn->scrnIndex, X_ERROR, \ + "ADVANCE_RING count != expected (%d vs %d) at %s:%d\n", \ + __count, __expected, __FILE__, __LINE__); \ + } \ if (RADEON_VERBOSE) { \ xf86DrvMsg(pScrn->scrnIndex, X_INFO, \ "ADVANCE_RING() start: %d used: %d count: %d\n", \ |