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* add allocation of atombios fb scratch

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* add free of allocated fb scratch


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42591 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Alexander von Gluck IV 2011-08-07 05:19:42 +00:00
parent 7a2d0c5e92
commit 77e8ac07c6
3 changed files with 33 additions and 0 deletions
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30
src/add-ons/accelerants/radeon_hd/atombios/atom.cpp
View File

@ -1272,6 +1272,7 @@ atom_destroy(atom_context *ctx)
{
if (ctx != NULL) {
free(ctx->iio);
free(ctx->scratch);
delete_sem(ctx->exec_sem);
}
@ -1319,3 +1320,32 @@ atom_parse_cmd_header(atom_context *ctx, int index, uint8 * frev,
return B_OK;
}
status_t
atom_allocate_fb_scratch(atom_context *ctx)
{
int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
uint16 data_offset;
int usage_bytes = 0;
_ATOM_VRAM_USAGE_BY_FIRMWARE *firmware;
if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
firmware = (_ATOM_VRAM_USAGE_BY_FIRMWARE *)
((uint16*)ctx->bios + data_offset);
TRACE("Atom firmware requested 0x%" B_PRIX32 " %" B_PRIu16 "kb\n",
firmware->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
firmware->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
usage_bytes
= firmware->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
}
if (usage_bytes == 0)
usage_bytes = 20 * 1024;
/* allocate some scratch memory */
ctx->scratch = (uint32*)malloc(usage_bytes);
if (!ctx->scratch)
return B_NO_MEMORY;
return B_OK;
}

2
src/add-ons/accelerants/radeon_hd/atombios/atom.h
View File

@ -154,5 +154,7 @@ status_t atom_parse_cmd_header(atom_context *ctx, int index, uint8 * frev,
uint8 * crev);
status_t atom_asic_init(atom_context *);
void atom_destroy(atom_context *);
status_t atom_allocate_fb_scratch(atom_context *ctx);
#endif

1
src/add-ons/accelerants/radeon_hd/bios.cpp
View File

@ -111,6 +111,7 @@ radeon_init_bios(uint8* bios)
// Post card
radeon_bios_init_scratch();
atom_allocate_fb_scratch(gAtomContext);
return B_OK;
}