diff options
| author | Dave Airlie <airlied@redhat.com> | 2009-11-17 06:29:46 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-12-08 07:33:04 +1000 |
| commit | d904ef9b00a4473af16766e99f17bdbb5f0fde65 (patch) | |
| tree | e9b5263b223cf5d20f189aad922f79c1ccbfd9c2 | |
| parent | f84676185368e36c6bc0eeab87ab73ed39042648 (diff) | |
drm/radeon/kms: add support to atom parser for FB read/write
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>
| -rw-r--r-- | drivers/gpu/drm/radeon/atom.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/atom.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 2 |
3 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c index d67c42555ab..85abc0850e7 100644 --- a/drivers/gpu/drm/radeon/atom.c +++ b/drivers/gpu/drm/radeon/atom.c @@ -263,10 +263,10 @@ static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr, case ATOM_ARG_FB: idx = U8(*ptr); (*ptr)++; + val = gctx->scratch[((gctx->fb_base + idx) / 4)]; if (print) DEBUG("FB[0x%02X]", idx); - printk(KERN_INFO "FB access is not implemented.\n"); - return 0; + break; case ATOM_ARG_IMM: switch (align) { case ATOM_SRC_DWORD: @@ -488,9 +488,9 @@ static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr, case ATOM_ARG_FB: idx = U8(*ptr); (*ptr)++; + gctx->scratch[((gctx->fb_base + idx) / 4)] = val; DEBUG("FB[0x%02X]", idx); - printk(KERN_INFO "FB access is not implemented.\n"); - return; + break; case ATOM_ARG_PLL: idx = U8(*ptr); (*ptr)++; diff --git a/drivers/gpu/drm/radeon/atom.h b/drivers/gpu/drm/radeon/atom.h index e6eb38f2bca..6671848e5ea 100644 --- a/drivers/gpu/drm/radeon/atom.h +++ b/drivers/gpu/drm/radeon/atom.h @@ -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" diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index a014ba4cc97..60ee6a8b4f7 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -481,11 +481,13 @@ int radeon_atombios_init(struct radeon_device *rdev) rdev->mode_info.atom_context = atom_parse(atom_card_info, rdev->bios); radeon_atom_initialize_bios_scratch_regs(rdev->ddev); + atom_allocate_fb_scratch(rdev->mode_info.atom_context); return 0; } void radeon_atombios_fini(struct radeon_device *rdev) { + kfree(rdev->mode_info.atom_context->scratch); kfree(rdev->mode_info.atom_context); kfree(rdev->mode_info.atom_card_info); } |