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drm/radeon/kms: add support to atom parser for FB read/write

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FB read/write really doesn't need to access the actual VRAM, we
can just use a scratch area. This is required for using atom displayport
calls later.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-11-17 06:29:46 +10:00
parent f846761853
commit d904ef9b00
3 changed files with 8 additions and 4 deletions
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2
drivers/gpu/drm/radeon/atom.h
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@@ -132,6 +132,7 @@ struct atom_context {
uint8_t shift;
int cs_equal, cs_above;
int io_mode;
uint32_t *scratch;
};
extern int atom_debug;
@@ -142,6 +143,7 @@ int atom_asic_init(struct atom_context *);
void atom_destroy(struct atom_context *);
void atom_parse_data_header(struct atom_context *ctx, int index, uint16_t *size, uint8_t *frev, uint8_t *crev, uint16_t *data_start);
void atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t *frev, uint8_t *crev);
int atom_allocate_fb_scratch(struct atom_context *ctx);
#include "atom-types.h"
#include "atombios.h"
#include "ObjectID.h"